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Sample records for bupivacaine

  1. Liposomal bupivacaine and clinical outcomes.

    Science.gov (United States)

    Tong, Yi Cai Isaac; Kaye, Alan David; Urman, Richard D

    2014-03-01

    In the multimodal approach to the management of postoperative pain, local infiltration and regional blocks have been increasingly utilized for pain control. One of the limitations of local anesthetics in the postoperative setting is its relatively short duration of action. Multivesicular liposomes containing bupivacaine have been increasingly utilized for their increased duration of action. Compared with bupivacaine HCl, local infiltration of liposomal bupivacaine has shown to have an increase in duration of action and causes delay in peak plasma concentration. In this article, we attempt to review the clinical literature surrounding liposomal bupivacaine and its evolving role in perioperative analgesia. This new bupivacaine formation may have promising implications in postoperative pain control, resulting in increased patient satisfaction and a decrease in both hospital stay and opioid-induced adverse events (AEs). Although more studies are needed, the preliminary clinical trials suggest that liposomal bupivacaine has predictable pharmacokinetics, a similar side effect profile compared with bupivacaine HCl, and is effective in providing increased postoperative pain control.

  2. Bupivacaine versus lidocaine analgesia for neonatal circumcision

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    Stolik-Dollberg Orit C

    2005-05-01

    Full Text Available Abstract Background Analgesia for neonatal circumcision was recently advocated for every male infant, and its use is considered essential by the American Academy of Pediatrics. We compared the post-operative analgesic quality of bupivacaine to that of lidocaine for achieving dorsal penile nerve block (DPNB when performing neonatal circumcision. Methods Data were obtained from 38 neonates following neonatal circumcision. The infants had received DPNB analgesia with either lidocaine or bupivacaine. The outcome variable was the administration by the parents of acetaminophen during the ensuing 24 hours. Results Seventeen infants received lidocaine and 19 received bupivacaine DPNB. Ten infants in the lidocaine group (59% were given acetaminophen following circumcision compared to only 3 (16% in the bupivacaine group (P 2 = 20.6; P = 0.006. Conclusion DPNB with bupivacaine for neonatal circumcision apparently confers better analgesia than lidocaine as judged by the requirement of acetaminophen over the ensuing 24-hour period.

  3. Treatment of Digital Ischemia with Liposomal Bupivacaine

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    José Raul Soberón

    2014-01-01

    Full Text Available Objective. This report describes a case in which the off-label use of liposomal bupivacaine (Exparel in a peripheral nerve block resulted in marked improvement of a patient’s vasoocclusive symptoms. The vasodilating and analgesic properties of liposomal bupivacaine in patients with ischemic symptoms are unknown, but our clinical experience suggests a role in the management of patients suffering from vasoocclusive disease. Case Report. A 45-year-old African American female was admitted to the hospital with severe digital ischemic pain. She was not a candidate for any vascular surgical or procedural interventions. Two continuous supraclavicular nerve blocks were placed with modest clinical improvement. These effects were also short-lived, with the benefits resolving after the discontinuation of the peripheral nerve blocks. She continued to report severe pain and was on multiple anticoagulant medications, so a decision was made to perform an axillary nerve block using liposomal bupivacaine (Exparel given the compressibility of the site as well as the superficial nature of the target structures. Conclusions. This case report describes the successful off-label usage of liposomal bupivacaine (Exparel in a patient with digital ischemia. Liposomal bupivacaine (Exparel is currently FDA approved only for wound infiltration use at this time.

  4. Comparison of Effect of Intrathecal Sufentanil-Bupivacaine and Fentanyl-Bupivacaine Combination on Postoperative Analgesia

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    Ishwar Singh

    2008-01-01

    Full Text Available Fifty ASA grade I/II patients scheduled for elective lower abdominal, lower limb and urological procedures were divided into two groups of 25 each .The first group (Group S received 2.5 ml of heavy bupivacaine with 0.2. ml sufentanil made up to 3 ml with saline. The second group (Group F received 2.5 ml of heavy bupivacaine with 0.5 ml of fentanyl. From our study it can be concluded that bupivacaine sufentanil combination although had shorter onset of action, but had more side effects especially nausea, vomiting and headache. The time for rescue analgesia in both groups was however similar.

  5. Effects of intrathecal Bupivacaine with normal saline versus Bupivacaine with Fentanyl in patients undergoing surgery

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    Jigna R Shah

    2016-03-01

    Full Text Available Objective:To know the effects of intrathecal 0.5% Bupivacaine 2.5 cc with 0.5 cc normal saline and 0.5% Bupivacaine 2.5 cc witth 25 and #956;g fentanyl for various lower abdominal surgeries. Methods: A comparative study were conducted in 60 (ASA grade I / II patients. The onset and duration of both sensory and motor blockade was compared using relevant scales i.e. Sensory scale and Bromage Scale. - Intra-operative and post-operative hemodynamic monitoring was done. The complications which occurred were noted and studied. - The duration of analgesia after sensory wear off was compared between the 2 groups using Visual Analogue Scale. - Quality of post-operative analgesia was studied between the groups. Results: The duration of sensory and motor block as well as duration of effective analgesia was significantly longer in the bupivacaine and ndash;fantanyl group as compared with both bupivacaine and ndash;normal saline groups. Conclusion: Addition of intrathecalfantanyl to bupivacaine was more advantageous than bupivacaine with normal saline with special regard to its analgesic properties among surgical patients. [Natl J Med Res 2016; 6(1.000: 62-68

  6. Comparison of efficacy of bupivacaine and fentanyl with bupivacaine and sufentanil for epidural labor analgesia

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    Kalra Sumit

    2010-01-01

    Full Text Available Objectives: A study to compare the efficacy between fentanyl and sufentanil combined with low concentration (0.0625% of bupivacaine for epidural labor analgesia in laboring women. Materials and Methods: Fifty full term parturients received an initial bolus dose of a 10 ml solution containing 0.125% bupivacaine. The patients were randomly divided into two: group F received 0.0625% bupivacaine with 2.5 mcg/ml fentanyl and group S received 0.0625% bupivacaine with 0.25 mcg/ml sufentanil. Verbal analogue pain scores, need of supplementary/rescue boluses dose of bupivacaine consumed, mode of delivery, maternal satisfaction, and neonatal Apgar scores were recorded. No significant difference was observed between both groups. Results: Both the groups provided equivalent labor analgesia and maternal satisfaction. The chances of cesarean delivery were also not increased in any group. No difference in the cephalad extent of sensory analgesia, motor block or neonatal Apgar score were observed. Although mean pain scores throughout the labor and delivery were similar in both groups, more patients in fentanyl group required supplementary boluses though not statistically significant. Conclusion: We conclude that both 0.0625% bupivacaine-fentanyl (2.5 μg/ml and 0.0625% bupivacaine-sufentanil (0.25 μg/ml were equally effective by continuous epidural infusion in providing labor analgesia with hemodynamic stability achieving equivalent maternal satisfaction without serious maternal or fetal side effects. We found that sufentanil was 10 times more potent than fentanyl as an analgesic for continuous epidural labor analgesia.

  7. Comparative study of caudal bupivacaine versus bupivacaine with tramadol for postoperative analgesia in paediatric cancer patients

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    Mohammed Hegazy; Ayman A. Ghoneim

    2013-01-01

    Objective: Caudal epidural analgesia has become very common analgesic technique in paediatric surgery. Add-ing tramadol to bupivacaine for caudal injection prolongs duration of analgesia with minimal side effects. The aim of the study was to investigate the different effects of caudal bupivacaine versus bupivacaine with thamadol for postoperative analgesia in paediatric cancer patients. Methods: A prospective randomized controlled trial was conducted over 40 paediatric cancer pa-tients who were recruited from Children Cancer Hospital of Egypt (57357 Hospital). Patients were randomized into 2 groups: bupivacaine group (group B, 20 patients) to receive single shot caudal block of 1 mL/kg 0.1875% bupivacaine; tramadol group (group T, 20 patients) prepared as group B with the addition of 1 mg/kg caudal tramadol. Results: The mean duration of analgesia was significantly longer among group T than group B [(24 ± 13.7) hours versus (7 ± 3.7) hours respectively with P = 0.001]. Group T showed a significantly lower mean FLACC score than group B (2.2 ± 0.9 versus 3.6 ± 0.6 with P = 0.002). The difference in FLACC score was comparable on arrival, and after 2 and 4 hours. At 8 and 12 hours the group B recorded significantly higher scores (P = 0.002 and 0.0001 respectively). There were no significant differences between the groups as regards sedation score [the median in both groups was 1 (0–1) with P value = o.8]. No one developed facial flush or pruritis. Conclusion: Caudal injection of low dose tramadol 1 mg/kg with bupivacaine 0.1875% is proved to be effective, long standing technique for postoperative analgesia in major paediatric cancer surgery and almost devoid of side effect.

  8. Comparison of histopathological effects of perineural administration of bupivacaine and bupivacaine-dexmedetomidine in rat sciatic nerve.

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    Memari, Elham; Hosseinian, Mohammad-Ali; Mirkheshti, Ali; Arhami-Dolatabadi, Ali; Mirabotalebi, Mojtaba; Khandaghy, Mohsen; Daneshbod, Yahya; Alizadeh, Leila; Shirian, Sadegh

    2016-11-01

    Injection of a variety of drugs such as local anesthetics (LAs) for peripheral nerve block has been shown to cause damage to peripheral nerves. Bupivacaine is a local anesthetic widely used in surgical procedures. The aim of this study was to evaluate the neurotoxicity of LAs including Bupivacaine and dexmedetomidine (DEX)-Bupivacaine on sciatic nerve tissue at histopathological level. In addition, we investigated whether perineural administration of DEX can attenuate Bupivacaine-induced neurotoxicity. Twenty adult Sprague Dawley rats received unilateral sciatic nerve blocks with either 0.2ml of 0.5% bupivacaine (n=8) or 0.5% bupivacaine plus 0.005% DEX (n=8) or normal saline (0.9%, as control group) (n=4) in the left hind extremity. Sciatic nerves were harvested at 14days post-injection and analyzed for nerve damage using ultrastructure and histopathologic analysis. Histopathology of sciatic nerve at day 14 post-injection showed a variable degree of neuronal injury associated with perineural inflammation in each treatment group and was classified as none or mild, intermediate or severe. Administration of both LAs resulted in a significant decrease in the total number of myelinated fibers per nerve (95% CI for group difference: Bupivacaine, P=0.001, DEX-Bupivacaine, P=0.036) compared to the saline control group. Animals that received these perineural local anesthetics (LAs) injections showed increased severity of injury compared to the control group. Animals in the DEX-Bupivacaine group had higher perineural inflammation and nerve damage than those of the saline control group and less than those of the Bupivacaine group at day 14 post-injection. Quantitatively, average total nerve fiber per nerve and average myelinated nerve fiber density in the injured region of the Bupivacaine-treated group was less than that of the DEX-Bupivacaine-treated group. LAs injection into the nerve causes peripheral nerve damage and remains an important clinical danger. Bupivacaine is

  9. Potential utility of liposome bupivacaine in orthopedic surgery.

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    Lonner, Jess H; Scuderi, Giles R; Lieberman, Jay R

    2015-03-01

    Management of postsurgical analgesia is an important consideration in orthopedic procedures, including joint arthroplasty. Inadequate postsurgical analgesia is associated with increased hospital length of stay, delayed ambulation, and reduced exercise capacity. In this article, we review the potential contribution of a prolonged-release liposomal formulation of bupivacaine as part of a multimodal analgesic regimen after orthopedic surgery. Controlled studies across multiple surgical settings have demonstrated that, compared with placebo and bupivacaine HCl, liposome bupivacaine in a single administration provides postsurgical analgesia for up to 72 hours, delays use of rescue medication, and reduces postsurgical opioid consumption. Liposome bupivacaine has been well tolerated in clinical studies and has had a low rate of treatment-related adverse events. To date, there has been no signal of cardiac toxicity, chondrolysis, or delayed wound healing associated with liposome bupivacaine.

  10. Comparison of spinal block after intrathecal clonidine–bupivacaine, buprenorphine–bupivacaine and bupivacaine alone in lower limb surgeries

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    Arora, Major Vishal; Khan, Mohammad Zafeer; Choubey, Major Sanjay; Rasheed, Mohammad Asim; Sarkar, Arindam

    2016-01-01

    Context: Various adjuvants are being used with local anesthetics for prolongation of intraoperative and postoperative analgesia. The α2-adrenergic agonist clonidine and potent opioid buprenorphine have the ability to potentiate the effects of local anesthetics. Aims: The purpose of this prospective, double-blind study was to compare onset, duration of sensory and motor block, effect on hemodynamics, level of sedation, duration of postoperative analgesia, and any adverse effects of clonidine and buprenorphine. Settings and Design: Seventy-five American Society of Anesthesiologists Class I and II patients undergoing lower limb surgery under spinal anesthesia were randomly allocated into three Groups A, B, and C. Subjects and Methods: Control Group A received injection bupivacaine 0.5% (heavy) 2.5 ml + saline 0.5 ml whereas Group B received injection bupivacaine 0.5% (heavy) 2.5 ml + injection buprenorphine 50 μg and Group C received injection bupivacaine 0.5% (heavy) 2.5 ml + preservative free injection clonidine 50 μg intrathecally. Statistical Analysis Used: Unpaired Student's t-test and Z-test were used for comparing data. Results: Statistically highly significant differences in mean time of sensory regression to L1, mean time to attain the Bromage Score of 1, and mean time of first rescue analgesic request were observed between the three groups. The patients did not suffer any serious side effects. Conclusion: Administration of buprenorphine and clonidine intrathecally does potentiate the duration of analgesia, sensory and motor block, with buprenorphine having a long-lasting effect. PMID:27746532

  11. PROSPECTIVE RANDOMISED CONTROL STUDY OF POST OP EPIDURAL ANALGESIA WITH BUPIVACAINE AND FENTANYL VS. BUPIVACAINE AND CLONIDINE

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    Rachana

    2014-07-01

    Full Text Available The aim of the study was to compare the relative potencies and clinical characteristics of epidural Clonidine and Fentanyl with Bupivacaine in lower limb and lower abdominal surgeries using patient-controlled analgesia. In a randomised double-blinded study, 60 ASA I or II patients requiring epidural analgesia for post- operative pain relief were allocated to receive either 0.125% Bupivacaine with Clonidine 1µg/kg or 0.125% Bupivacaine with Fentanyl 1µg/kg via a sterile syringe by trained anaesthesiologists. Analgesia was established with 10-15 ml bolus of study solution. There were significant differences in onset time, duration and quality of analgesia, local anaesthetic consumption, between the two groups. We conclude that 0.125% Bupivacaine with Clonidine 1µg/kg group of patients clinically had better quality of analgesia and for a longer duration in comparison with patients receiving 0.125% Bupivacaine with Fentanyl 1µg/kg.

  12. COMPARATIVE EVALUATION OF INTRATHECAL BUPIVACAINE-FENTANYL AND BUPIVACAINE-SUFENTANIL FOR CAESAREAN SECTION

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    Pooja

    2014-06-01

    Full Text Available BACKGROUND: Addition of lipophilic opioids like Fentanyl and Sufentanil to local anaesthetic for spinal anaesthesia has shown to prolong the duration of analgesia. This study was carried out to study (a Comparison of effect of Fentanyl and Sufentanil added to Bupivacaine on onset and duration of anaesthesia in Cesarean Section. (b To compare the quality and duration of analgesia between the two opioids and (c To compare the effect on neonatal outcome. METHODS: 50 parturients of ASA grade 1 and 2 undergoing Cesarean Section were randomized into two groups of 25 each. Group F received 2.5 ml 0.5% Bupivacaine heavy + inj. Fentanyl 0.25 ml (12.5 mcg and Group S received 2.5 ml 0.5% Bupivacaine heavy + inj. Sufentanil 0.1 ml (5 mcg intrathecally. Onset of sensory and motor blockade was noted in all the patients. Haemodynamic parameters were recorded every 5 minutes for first 30 minutes and then every 15 minutes till the completion of surgery. Duration of sensory and motor sensory blockade was observed post operatively. RESULT: Both the groups were stable haemodynamically. Both the groups were comparable regarding the duration of sensory and motor block, but the total duration of effective analgesia was significantly longer in Sufentanil group. Pruritus was significant side effect in Sufentanil group. Neither the mother nor the neonate had respiratory depression. CONCLUSION: Addition of Sufentanyl to intrathecal bupivacaine provides longer duration of analgesia as compared to intrathecal fentanyl-bupivacaine. However, the incidence of pruritus was greater in Sufentanyl group.

  13. Effects of levobupivacaine and bupivacaine on rat myometrium

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    LI Zi-gang; ZHOU Liang; TANG Hui-fang

    2006-01-01

    Objective: To study the effect of levobupivacaine and bupivacaine on the contractility of isolated uterine muscle strips from pregnant and non-pregnant female rats. Methods: Full-thick myometrial strips were prepared from 18- to 21-day pregnant (n=g) and non-pregnant rats (n=7). After contractions became regular, strips were exposed to cumulative concentrations of the two drugs from 10-8 to 10-4 mol/L, amplitude and frequency of the uterine contraction was recorded. Results: Two local anesthetics caused a concentration dependent inhibition on contractility of myometrial strips from pregnant and non-pregnant rats. In the myometrium from non-pregnant rats, -logIC50 of levobupivacaine and bupivacaine were 4.85 and 4.25 respectively. In the myometrium from pregnant rats, similar concentrations of levobupivacaine and bupivacaine were observed, -logIC50 were 2.7 and 2.9respectively. Levobupivacaine produced an increase in amplitude of contractions, while bupivacaine showed an increased trend in frequency. Conclusion: These results demonstrate that levobupivacaine and bupivacaine may inhibit myometrium contractility.The inhibitory effect of levobupivacaine or bupivacaine is not enhanced by gestation in rat. Levobupivacaine may have more positive influence than bupivacaine in pregnant myometrium.

  14. Bupivacaine and botulinum toxin to treat comitant strabismus

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    Luisa Moreira Hopker

    2012-04-01

    Full Text Available PURPOSE: To evaluate the change in ocular motility and muscle thickness measured with ultrasonography after intramuscular injection of bupivacaine and botulinum toxin A. METHODS: Eight patients (five female were enrolled to measure ocular motility prior and 1, 7, 30 and 180 days after one injection of 2 ml of 1.5% bupivacaine and 2.5 U of botulinum toxin A in agonist and antagonist muscles, respectively, of eight amblyopic eyes. Muscle thickness was measured prior and on days 1, 7 and 30 after injection using 10-MHz ultrasonography (eyelid technique. RESULTS: Mean change in alignment was 10 prism diopters after 180 days (n=6. An average increase of 1.01 mm in muscle thickness was observed after 30 days of bupivacaine injection and 0.28 mm increase was observed after botulinum toxin A injection, as measured by ultrasonography. Lateral rectus muscles injected with bupivacaine had a mean increase of 1.5 mm in muscle thickness. CONCLUSION: In this study, a change in ocular motility was observed after 180 days of intramuscular injection of bupivacaine and botulinum toxin in horizontal extraocular muscles. Overall, there was an increase of muscle thickness in both botulinum toxinum A and bupivacaine injected muscles after 30 days of injection when measured by ultrasonography. This change was more pronounced on lateral rectus muscles after bupivacaine injection.

  15. Pharmacokinetics of bupivacaine after intraperitoneal administration to cats undergoing ovariohysterectomy.

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    Benito, Javier; Monteiro, Beatriz P; Beaudry, Francis; Lavoie, Anne-Marie; Lascelles, B Duncan X; Steagall, Paulo V

    2016-06-01

    OBJECTIVE To evaluate pharmacokinetics of bupivacaine after IP administration to cats undergoing ovariohysterectomy. ANIMALS 8 healthy cats. PROCEDURES Anesthesia was induced with propofol and maintained with isoflurane. Buprenorphine (0.02 mg/kg, IV) and meloxicam (0.2 mg/kg, SC) were administered. A 20-gauge catheter was inserted into a jugular vein for blood sample collection. A ventral midline incision was made, and a solution of 0.5% bupivacaine (2 mg/kg) diluted with an equal volume of saline (0.9% NaCl) solution (final concentration, 0.25% bupivacaine) was injected into the peritoneal space over the right and left ovarian pedicles and caudal aspect of the uterus before ovariohysterectomy. Cats were monitored for signs of bupivacaine toxicosis. Venous blood samples (2 mL) were collected before (time 0) and 2, 5, 10, 15, 20, 30, 60, 120, and 240 minutes after bupivacaine administration. Plasma bupivacaine concentrations were determined with a liquid chromatography-tandem mass spectrometry method. Pharmacokinetic parameters were determined by data plotting followed by analysis with a noncompartmental model. RESULTS No signs of bupivacaine toxicosis were observed. Maximum bupivacaine plasma concentration was 1,030 ± 497.5 ng/mL at a mean ± SD value of 30 ± 24 minutes after administration. Mean elimination half-life was 4.79 ± 2.7 hours. Mean clearance indexed by bioavailability and volume of distribution indexed by bioavailability were 0.35 ± 0.18 L•h/kg and 2.10 ± 0.84 L/kg, respectively. CONCLUSIONS AND CLINICAL RELEVANCE Intraperitoneal administration of bupivacaine resulted in concentrations that did not cause observable toxicosis. Studies to investigate analgesic effects for this technique in cats are warranted.

  16. Effect of intraoperatory peritoneal bupivacaine irrigation on inmediate, 24 hour

    OpenAIRE

    2004-01-01

    Objective: To compare the response on inmediate, 24 hour abdominal pain and referred shoulder pain (omalgia), when an intraperitoneal irrigation of bupivacaine was used as opposed to saline irrigation, in a group of patients who has laparoscopy done in a medical center in Cali, between April and June of 2000. Material and methods: After previous authorization and consentment by all 100 patients, a placebo was applied to 50 patients and bupivacaine to the other 50 patients, without randomizat...

  17. Plasma bupivacaine levels following single dose intraarticular instillation for arthroscopy.

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    Meinig, R P; Holtgrewe, J L; Wiedel, J D; Christie, D B; Kestin, K J

    1988-01-01

    Arthroscopy of the knee was performed using 30 ml single dose intraarticular instillations of 0.5% or 0.25% solutions of bupivacaine (Marcaine). A total of 18 patients (mean age, 34 years), divided into two groups, participated in this study. Venous plasma levels were measured at 0, 10, 20, 30, 45, 60, 90, 120, and 240 minute intervals following a single instillation into the knee joint. All patients had suspected traumatic internal derangement of the knee. Electrocardiogram tracings, blood pressure, and neurologic assessment were monitored at each venous sampling interval or more often if clinically indicated. The type and amount of supplemental anesthesia were also recorded. None of our 18 patients required a general anesthetic because of pain although the following procedures were performed: meniscectomy, plica release, abrasion chondroplasty, loose body retrieval, and limited meniscal repair. A new methodology for the measurement of plasma bupivacaine using the gas chromatograph mass spectrometer is described. Monitoring specific molecular mass fragments allows the measurement of picogram per milliliter levels of bupivacaine. The highest peak plasma concentration occurred 20 minutes after instillation of 30 ml of 0.5% bupivacaine. The 625 +/- 225 ng/ml level was well below the 2,500 to 4,000 ng/ml reported to elicit early subjective CNS symptoms of bupivacaine toxicity. Thus, a single dose intraarticular instillation of 30 ml 0.5% or 0.25% bupivacaine is convenient, efficacious, and pharmacologically safe for routine clinical arthroscopy.

  18. The Role of Liposomal Bupivacaine in Value-Based Care.

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    Iorio, Richard

    Multimodal pain control strategies are crucial in reducing opioid use and delivering effective pain management to facilitate improved surgical outcomes. The utility of liposomal bupivacaine in enabling effective pain control in multimodal strategies has been demonstrated in several studies, but others have found the value of liposomal bupivacaine in such approaches to be insignificant. At New York University Langone Medical Center, liposomal bupivacaine injection and femoral nerve block were compared in their delivery of efficacious and cost-effective multimodal analgesia among patients undergoing total joint arthroplasty (TJA). Retrospective analysis revealed that including liposomal bupivacaine in a multimodal pain control protocol for TJA resulted in improved quality and efficiency metrics, decreased narcotic use, and faster mobilization, all relative to femoral nerve block, and without a significant increase in admission costs. In addition, liposomal bupivacaine use was associated with elimination of the need for patient-controlled analgesia in TJA. Thus, at Langone Medical Center, the introduction of liposomal bupivacaine to TJA has been instrumental in achieving adequate pain control, delivering high-level quality of care, and controlling costs.

  19. A comparison between post-operative analgesia after intrathecal nalbuphine with bupivacaine and intrathecal fentanyl with bupivacaine after cesarean section

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    Hala Mostafa Gomaa

    2014-10-01

    Conclusion: Either intrathecal nalbuphine 0.8 mg or intrathecal fentanyl 25 μg combined with 10 mg bupivacaine provides good intra-operative and early post-operative analgesia in cesarean section.

  20. COMPARATIVE STUDY OF BUPIVACAINE V/S BUPIVACAINE WITH CLONIDINE FOR BRACHIAL PLUXUS BLOCK

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    Praveen Kumar

    2015-10-01

    Full Text Available BACKGROUND : The prime duty of any anesthesiologist is to relive pain in the perioperative period. Today regional anesthesia is well established as equal to general anesthesia in effectiveness and patient acceptability. Regional anesthesia is blocking of peripheral ne rve conduction in a reversible way using local anesthetic agents. For surgeries on upper extremities, particularly in emergency surgeries, regional anesthesia has many advantages over general anesthesia. The brachial plexus is approached at the level of tr unks and the compact arrangement of trunks at the supraclavicular level gives a high success rate with minimum local anesthetic drug volume and a dense and fast onset of the block. To prolong the duration of analgesia various drugs have been studied as adj uvants to the local anesthetics. This study is intended to determine the effects of adding Clonidine to Bupivacaine in brachial plexus blockade by Nerve locator assisted supraclavicular approach, with regard to the onset, intensity and duration of blockade along with its analgesic efficacy. METHODS : Forty adult patients of both sexes in the age group of 20 - 60 years of weight ranging from 50 - 70kg belonging to ASA I/II category posted for various types of upper limb surgeries the patients were randomly alloca ted into two groups,. Supraclavicular brachial plexus block was performed via peripheral nerve locator assisted subclavian perivascular technique. Group – B ( B upivacaine alone – 20 patients received 30 ml of 0.375%Bupivacaine with 2ml of 0.9% sodium chloride solution. Group – BC ( B upivacaine + C lonidine – 20 patients received 30ml of 0.375%Bupivacaine with Clonidine hydrochloride 100μg (1ml of 150μg diluted with 2ml 0.9% Na C l solution. From that 2ml used fo r study. ( T he following parameters are assessed Onset of blockade, Duration of blockade, Intensity of blockade, Sedation, Quality of analgesia, Haemodynamic changes & Complications if any RESULTS

  1. Absorption of Bupivacaine after Administration of a Lozenge as Topical Treatment for Pain from Oral Mucositis

    DEFF Research Database (Denmark)

    Mogensen, Stine; Sverrisdóttir, Eva; Sveinsdóttir, Kolbrún;

    2017-01-01

    , respectively, after administration. The plasma concentration-time profiles of bupivacaine were fitted to pharmacokinetic models using nonlinear mixed-effects modelling, evaluating demographics and health status as covariates. The population pharmacokinetics (PK) of bupivacaine lozenge was best described...

  2. Tetrodotoxin-Bupivacaine-Epinephrine Combinations for Prolonged Local Anesthesia

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    Christina Bognet

    2011-12-01

    Full Text Available Currently available local anesthetics have analgesic durations in humans generally less than 12 hours. Prolonged-duration local anesthetics will be useful for postoperative analgesia. Previous studies showed that in rats, combinations of tetrodotoxin (TTX with bupivacaine had supra-additive effects on sciatic block durations. In those studies, epinephrine combined with TTX prolonged blocks more than 10-fold, while reducing systemic toxicity. TTX, formulated as Tectin, is in phase III clinical trials as an injectable systemic analgesic for chronic cancer pain. Here, we examine dose-duration relationships and sciatic nerve histology following local nerve blocks with combinations of Tectin with bupivacaine 0.25% (2.5 mg/mL solutions, with or without epinephrine 5 µg/mL (1:200,000 in rats. Percutaneous sciatic blockade was performed in Sprague-Dawley rats, and intensity and duration of sensory blockade was tested blindly with different Tectin-bupivacaine-epinephrine combinations. Between-group comparisons were analyzed using ANOVA and post-hoc Sidak tests. Nerves were examined blindly for signs of injury. Blocks containing bupivacaine 0.25% with Tectin 10 µM and epinephrine 5 µg/mL were prolonged by roughly 3-fold compared to blocks with bupivacaine 0.25% plain (P < 0.001 or bupivacaine 0.25% with epinephrine 5 µg/mL (P < 0.001. Nerve histology was benign for all groups. Combinations of Tectin in bupivacaine 0.25% with epinephrine 5 µg/mL appear promising for prolonged duration of local anesthesia.

  3. Acetylcholinesterase assay for cerebrospinal fluid using bupivacaine to inhibit butyrylcholinesterase

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    Anders Jens

    2001-12-01

    Full Text Available Abstract Background Most test systems for acetylcholinesterase activity (E.C.3.1.1.7. are using toxic inhibitors (BW284c51 and iso-OMPA to distinguish the enzyme from butyrylcholinesterase (E.C.3.1.1.8. which occurs simultaneously in the cerebrospinal fluid. Applying Ellman's colorimetric method, we were looking for a non-toxic inhibitor to restrain butyrylcholinesterase activity. Based on results of previous in vitro studies bupivacaine emerged to be a suitable inhibitor. Results Pharmacokinetic investigations with purified cholinesterases have shown maximum inhibition of butyrylcholinesterase activity and minimal interference with acetylcholinesterase activity at bupivacaine final concentrations between 0.1 and 0.5 mmol/l. Based on detailed analysis of pharmacokinetic data we developed three equations representing enzyme inhibition at bupivacaine concentrations of 0.1, 0.2 and 0.5 mmol/l. These equations allow us to calculate the acetylcholinesterase activity in solutions containing both cholinesterases utilizing the extinction differences measured spectrophotometrically in samples with and without bupivacaine. The accuracy of the bupivacaine-inhibition test could be confirmed by investigations on solutions of both purified cholinesterases and on samples of human cerebrospinal fluid. If butyrylcholinesterase activity has to be assessed simultaneously an independent test using butyrylthiocholine iodide as substrate (final concentration 5 mmol/l has to be conducted. Conclusions The bupivacaine-inhibition test is a reliable method using spectrophotometrical techniques to measure acetylcholinesterase activity in cerebrospinal fluid. It avoids the use of toxic inhibitors for differentiation of acetylcholinesterase from butyrylcholinesterase in fluids containing both enzymes. Our investigations suggest that bupivacaine concentrations of 0.1, 0.2 or 0.5 mmol/l can be applied with the same effect using 1 mmol/l acetylthiocholine iodide as substrate.

  4. Shenfu injection reduces toxicity of bupivacaine in rats

    Institute of Scientific and Technical Information of China (English)

    王强; 刘艳红; 雷毅; 杨静; 陈绍洋; 陈敏; 熊利泽

    2003-01-01

    Objective To investigate the effects of injecting Shenfu, an extract of traditional Chinese herbal medicines, on the central nervous system (CNS) and the cardiac toxicity of bupivacaine in rats. Methods Sixteen male Sprague-Dawley rats, weighing form 280 to 320 g, were randomly assigned to two groups (n=8 in each group). Animals in the control group received a saline injection 10 ml/kg while animals in the Shenfu group received an injection of Shenfu 10 ml/kg intraperitoneally 30 minutes before intravenous infusion of bupivacaine. Lead Ⅱ of an electrocardiogram (EEG) was continuously monitored after 3 needles were inserted into the skin of both forelimbs and the left hind-leg of each rat. The femoral artery was cannulated for measurement of arterial blood pressure and blood sampling. The femoral vein was cannulated for the infusion of bupivacaine. After baseline measurement (arterial blood pressure, heart rate and arterial blood gas), 0.5% bupivacaine was infused intravenously at a rate of 2 mg*kg-1*min-1 to all animals until asystole occurred. The time of bupivacaine-induced convulsions, arrhythmia and asystole were determined. The dose of bupivacaine was then calculated at the corresponding time point. Results The doses of bupivacaine that induced convulsions, arrhythmia and cardiac arrest were remarkably larger in Shenfu injection-treated animals than in saline-treated rats [convulsions, (10.5±1.9) mg/kg vs (7.2±1.5) mg/kg; arrhythmia (10.5±2.0) mg/kg vs (7.2±1.9) mg/kg; asystole, (32.8±8.5) mg/kg vs (25.0±5.0) mg/kg; P=0.006, 0.009 and 0.044, respectively]. Conclusion The Shenfu injection is able to reduce the toxicity of bupiralaine to CNS and cardiac system in rats.

  5. Comparison of Local Anesthetic Effect of Bupivacaine versus Bupivacaine plus Dexamethasone in Nasal Surgery

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    Abdolhosein Ma’somi

    2012-12-01

    Full Text Available   Introduction: Adequate pain control is an important consideration in the post-surgical management of patients. Local nerve blockade added to general anesthesia can provide excellent pain control during and after most nasal surgical procedures. The aim of this study was to determine the combined effect of local anesthetic drugs with corticosteroids in nasal surgery. Materials and Methods: In this double-blind clinical study, 60 patients who underwent different nasal surgical procedures were matched and divided into two equal groups. Bilateral local nerve blockade was used in both groups. Bupivacaine or bupivacaine plus dexamethasone was administered by injection (groups B and B+D, respectively. Postoperative visual analog scale (VAS pain values and the need for oral/intramuscular analgesic treatment in the first 24 h were recorded in all patients. Results: Thirty-eight male (63.3% and 22 female (36.7% patients were included in this study, with a mean age of 28.3 ± 8.2 years. At 1, 2, 4, 6, and 12 h post surgery, VAS pain values were significantly lower in the B+D group than in the B group. The analgesic requirement was significantly lower in the B+D group compared with the B group. No relevant complications were seen during surgery or postoperative hospitalization. Conclusion: This study demonstrates the positive effect of a combination of a dexamethasone with a bupivacaine in reducing pain and the need for analgesic drugs after different nasal surgeries. No acute or short-term post-surgical complications were observed in this study.   

  6. Post operative analgesia after incisional infiltration of bupivacaine v/s bupivacaine with buprenorphine

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    Tanu R Mehta

    2011-01-01

    Full Text Available Introduction: Opioid receptors have been demonstrated in the peripheral nerve endings of afferent neurons. Blockade of these receptors with peripherally administered opioid is believed to result in analgesia. Aim: To evaluate whether buprenorphine added to bupivacaine for wound infiltration can enhance post-operative analgesia via peripheral mechanisms. Materials and Methods: Forty ASA I and II adult patients scheduled for open donor nephrectomy were enrolled in this randomized double blind prospective study. In group A ( n=20 patients, the wound was infiltrated with bupivacaine 0.5% (2 mg/kg and in group B ( n=20 with bupivacaine 0.5% (2 mg/kg and buprenorphine (2 μg/kg. All patients were given diclofenac 75 mg IM at 8 h interval. Post-operative quality of analgesia was assessed by VAS (0-10 for 24 h and when VAS > 4 rescue analgesic was administered. Total dose of rescue analgesic and side effects were noted. Results: The time of administration of first rescue analgesic was significantly higher in group B (10.52±5.54 h as compared to group A (3.275±1.8 h. Mean VAS was significantly lower in group B as compared to group A. The total dosage of rescue analgesic was more in group A as compared to group B patients. Conclusion: Addition of buprenorphine to the local anesthetic significantly prolonged the time to first rescue analgesic requirement and the total consumption of rescue analgesic in 24 h, thus providing evidence in support of the existence of peripheral opioid receptors.

  7. Evaluation of intrathecal bupivacaine alone, bupivacaine with butorphanol and bupivacaine with dexmedetomidine for lower segment caesarean section: a randomized control trial

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    Ashem Jack Meitei

    2016-12-01

    Conclusions: Addition of dexmedetomidine to spinal bupivacaine block in caesarean section increase the duration of analgesia and motor block with minimal side effect and no adverse effects on the babies. [Int J Basic Clin Pharmacol 2016; 5(6.000: 2675-2682

  8. Postoperative Analgesia in Children- Comparative Study between Caudal Bupivacaine and Bupivacaine plus Tramadol

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    Meena Doda

    2009-01-01

    Full Text Available Thirty children, ASAI-II, aged between 2yrs-5yrs, undergoing sub umbilical operation (inguinal and penile surgery were selected for this double blind study. They were randomly divided in two groups, group Aand group B. Group A(n15 received 0.25%bupivacaine 0.5ml.kg -1 and Group B (n=15 received 0.25% bupivaeaine 0.5ml.kg -1 and tramadol 2mg.kg -1 as single shot caudal block. Postoperative pain was assessed by a modified TPPPS (Toddler-Preschool Postoperative Pain Scale and analgesic given only when the score was more than 3. In the first 24 hrs it was observed that the mean duration of time interval between the caudal block and first dose of analgesic was significantly long(9. lhrs in Group B as compared to Group A (6.3hrs which was much shorter(p< 0.01.There was no significant haemodynamie changes, motor weakness or respiratory depression in both groups. This study con-cluded that addition of tramadol 2mg.kg -1 to caudal 0.25% bupivacaine 0.5ml.kg -1 significantly prolong the duration of postoperative analgesia in children withoutprodueing much adverse effects.

  9. A COMPARATIVE STUDY OF POSTOPERATIVE ANALGESIA BY CAUDAL EPIDURAL ROUTE USING BUPIVACAINE WITH TRAMADOL AND BUPIVACAINE WITH FENTANYL IN PAEDIATRIC BELOW UMBILICAL SURGERIES

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    Meera

    2015-05-01

    Full Text Available The aim of this study was to compare the effectiveness of Bupivacaine (0.25% 0.5 ml/kg with Fentanyl 1μg/kg and Bupivacaine (0.25% 0.5 ml/kg with Tramadol 2 mg/kg in caudal block for postoperative analgesia. In the present study, 60 children of ASA I and II, aged between 5-12 years who were scheduled for below umbilical surgical procedures were randomly allotted into 2 groups (30 each to receive either bupivacaine with fentanyl or bupivacaine with tramadol. Caudal block was performed after induction of general anesthesia, no analgesics were given intra-operatively. Postoperative analgesia was evaluated by Numerical Rating Scale and sedation was assessed by five point sedation score. Postoperative analgesia was supplemented with Syrup Paracetamol (10mg/kg when Numerical Rating Scale was 4. Any adverse effect like respiratory depression, urinary retention, nausea and vomiting were recorded in all patients. Caudal tramadol with bupivacaine produced significant increased postoperative analgesia. The duration of analgesia was 861±23 minutes in tramadol with bupivacaine group, as compared to 353.46±31.79 minutes in fentanyl with bupivacaine group. No significant difference found in sedation score in both groups in first hour postoperatively. Two cases in fentanyl with bupivacaine and three cases in tramadol with bupivacaine group developed urinary retention in postoperative period. Four cases in fentanyl with bupivacaine and three cases in tramadol with bupivacaine group developed nausea and vomiting. Our study showed that caudal tramadol with bupivacaine provided longer duration of postoperative analgesia without having significant side effects.

  10. COMPARATIVE STUDY OF EPIDURAL BUPIVACAINE AND BUPIVACINE WITH NEOSTIGMINE

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    Pavani

    2015-05-01

    Full Text Available BACKGROUND: Many drugs have been used to prolong analgesic effects of epidural local anesthetics. These are called adjuvants. We studied the epidural effect of Neostigmine when adminstered with Bupivacaine in comparison with Bupivacaine . OBJECTIVE: The objective for the study was to find a drug which enhances the onset of action, increases the duration of action of the local anesthetic with minimal or no side effects, instead of increasing the dose of local anaesthetic. MATERIALS AND METHODS: A prospecti ve study was conducted on 100 adult patients, selected at random of either sex, of age between 20 - 65 years and belonging to ASA grade I or II. The study was designed to compare the effects of epidural Neostigmine with Bupivacaine and epidural Bupivacaine u sed alone with regard to onset, duration of analgesia, hemodynamic stability and level of anaesthesia. Patients were divided into two groups of 50 each. Group I received 19ml of 0.5% Bupivacaine+1ml of normal saline. Group II received 19ml of 0.5% Bupivaca ine+100μg of Neostigmine in 1ml of normal saline. In the operating room the patients were assessed for time of onset of analgesia, duration of anaesthesia, level of analgesia and complications. RESULTS : The addition of Neostigmine resulted in significant r apid onset of action, longer duration of analgesia and motor blockade. There was no incidence of respiratory depression, pruritus, fluctuations in blood pressure, or change in pulse rate, except one patient who developed bradycardia. CONCLUSION : Co adminis tration of epidural Neostigmine and Bupivacaine appears to be a useful technique for epidural anaesthesia as it provides faster onset, longer duration of action and haemodynamic stability.

  11. Comparative study of epidural bupivacaine with butorphanol and bupivacaine with tramadol for postoperative pain relief in abdominal surgeries

    Science.gov (United States)

    Swathi, N.; Ashwini, N.; Shukla, Mukesh I.

    2016-01-01

    Introduction: To compare the efficacy of combination of epidural local anesthetic with tramadol and butorphanol in major abdominal surgeries. Aims: To evaluate duration of analgesia, analgesic efficacy, and safety profile of two groups of drugs-epidural butorphanol with bupivacaine and epidural tramadol with bupivacaine. Materials and Methods: A prospective, randomized controlled, double-blinded study was undertaken in 50 patients scheduled for major abdominal surgeries. Group B received epidural butorphanol 2 mg + bupivacaine 0.125% first dose and subsequent doses, butorphanol 1 mg + bupivacaine 0.125% (total volume 10 ml). Group T received epidural tramadol 2 mg/kg + bupivacaine 0.125% first dose and subsequent doses, tramadol 1 mg/kg + bupivacaine 0.125% (total volume 10 ml). Observed parameters were the quality of analgesia, sedation, and hemodynamic parameters in the intra and post-operative period. Time for request of rescue analgesia was noted in all the patients. Continuous data are analyzed by Student's t-test using IBM SPSS software version 20. P ≤0.05 was considered to be statistically significant. P ≤ 0.001 was considered to be statistically highly significant. Results: Visual analog scale better with butorphanol group than tramadol (0.12 ± 0.332 and 0.84 ± 0.746 for Group B and Group T) at 30 min after first dose. Onset of action (8.44 ± 1.158 min in Group B and 12.80 ± 1.354 min in Group T) faster with butorphanol but duration of analgesia longer with tramadol (5.92 ± 0.76 h in Group B vs. 7.68 ± 0.76 h in Group T). Sedation was seen in patients with butorphanol group. Nausea and vomiting more frequent with tramadol group. Conclusions: Epidural tramadol with antiemetic is better than butorphanol for its longer duration in ambulatory surgery, elderly patients, obese patients, and suitable high-risk patients. PMID:27746533

  12. A COMPARATIVE STUDY OF ANALGESIC EFFICACY OF INTRATHECAL CLONIDINE WITH BUPIVACAINE & BUPIVACAINE ALONE IN ELECTIVE CAESAREAN SECTION

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    Chethanananda

    2014-03-01

    Full Text Available : Spinal anaesthesia in caesarean section has many advantages in that it is simpler to perform, provides a more certain endpoint& has a higher degree of success than epidural anaesthesia as it provides more profound block than epidural anaesthesia. As the dose of local anaesthetics used with spinal anaesthesia is small, there is little chance of maternal toxicity & placental transfer of drugs. Bupivacaine 0.5% is the most popular drug used for spinal anaesthesia in caesarean section. Many adjuvant drugs are added intrathecally along with Bupivacaine to increase the duration and intensity of analgesia. Intrathecal Clonidine (an α2 agonist is being extensively evaluated as an alternative to neuraxial opioid along with local anaesthetic agents. We evaluated the efficacy of clonidine added to 0.5% bupivacaine in prolonging the analgesia produced by intrathecal bupivacaine in parturients undergoing elective lower segment caesarean section (LSCS. 60 parturients between 20-30 years of age weighing 50-70 Kgs belonging to ASA (American Society of Anaesthesiologists grading I & II were prospectively randomised to two groups. 30 parturients of Group B (control group received 2.0 ml of 0.5% hyperbaric bupivacaine intrathecally alone and 30 parturients of Group BC received 1.75 ml of 0.5% hyperbaric bupivacaine +0.25 ml (37.5mcg of preservative free clonidine. The time taken for onset of sensory and motor blockade duration of postoperative analgesia and the duration of motor blockade were noted. The mean time of onset of sensory blockade in Group B was 57.16±9.9 seconds and Group BC was 62.8±6.80 seconds (p < 0.05. The meantime taken for onset motor block was 66.00±5.15 seconds in Group B and 81.33±8.89 seconds in Group BC (p = 0.000 with the grade of motor blockade was similar in both groups. The mean duration of analgesia was 152.77±11.79 minutes in B group and 288.16±16.73 in BC group (p = 0.000. The mean duration of motor blockade was 93.33±8

  13. EPIDURAL ANESTHESIA BUPIVACAINE 0.5%+ KCL 5 MEQ/L VS BUPIVACAINE 0.5%

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    F ALAVI

    2000-03-01

    Full Text Available Background. Although epidural anesthesia is a Successful method for most surgical procedures on lower extremities and lower abdomen. It is not so favorable because of it's slow onset and differential sensory and motor block. In order to solve this problem effects of additive KCl (5 meq/L into Bupivacaine 0.5 percent according to onset, intensity, duration of block and homodynamic changes during epidural anesthesia will be investigated through the present study. Methods. All the ASA I or II patients at medical centers of Isfahan university of medical sciences throughout 1378, candidate for elective Surgical procedures on lower extremities and lower abdomen with no contraindication for epidural anesthesia were Subdivided into Case (35 patients and Control (35 patients groups in a random manner to perform a double blind clinical trial. Epidural anesthesia applied to cases (by Bupivacaine 0.5 percent+ KCl 5meq/L and controls (by Bupivacaine 0.5 percent. Under identical conditions, data indicating basic MAP, basic heart rate and their changes as well as the onset, duration and intensity of motor and sensory block, were obtained and recorded by the anesthesiologist. Quantitative & qualitative variables were examined by T.test and X2 test respectively. Findings. Sensory onset for cases (8.22±1.43Min was faster than controls (11.56±1.45Min (P<0.005. Motor onset for cases (12.77 ± 1.83Min was faster than controls (20.24±1.71Min (P < 0.005. Sensory duration for cases (l86.34±8.37 Min was longer than controls (162.17±7.47Min (P<0.005. Motor duration for cases (106.25±13.50 Min was longer than controls (77.60 ± 9.94Min (P < 0.005.Intensity of sensory block for cases was greater than controls (P < 0.01. Intensity of motor block for cases was greater than controls (P < 0.001. Mean heart rate changes for cases (7.28±9.37 percent and controls (7 ± 8 percent were not different (P < 0.8. Mean decrease in MAP for cases (20.17 ± 2.10n percent was

  14. The safety of liposome bupivacaine following various routes of administration in animals

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    Joshi GP

    2015-10-01

    Full Text Available Girish P Joshi,1 Gary Patou,2 Vladimir Kharitonov21Department of Anesthesiology and Pain Management, University of Texas Southwestern Medical School, Dallas, TX, 2Pacira Pharmaceuticals, Inc., Parsippany, NJ, USABackground: This report presents results from four preclinical studies evaluating safety and pharmacokinetics (PKs of liposome bupivacaine following intravascular (intravenous [IV], intra-arterial [IA], epidural, and intrathecal administration in dogs.Methods: Intravascular administration was initially tested in a pilot study to determine maximum tolerated doses, and then in an expanded study of systemic adverse effects and PKs. An epidural study compared properties of liposome bupivacaine alone and in combination with lidocaine/epinephrine vs bupivacaine HCl. Another study assessed effects after intrathecal administration.Results: In the initial intravascular studies, maximum doses at which no meaningful adverse events were observed with liposome bupivacaine were higher than for bupivacaine HCl (4.5 mg/kg IV vs 0.75 mg/kg IV, and 1.5 mg/kg IA vs 0.1 mg/kg IA, respectively. In the expanded intravascular study, there was no mortality or changes in pathology; adverse clinical signs included convulsions, lying on side, and decreased muscle tone (all were transient. In the epidural study, liposome bupivacaine was well tolerated at doses up to the highest dose tested (40 mg, with no evidence of spinal cord damage and with less motor blockade than bupivacaine HCl 15 mg. Intrathecal administration of liposome bupivacaine 40 mg was not associated with meaningful safety concerns and resulted in less motor blockade than bupivacaine HCl 15 mg. PK analyses showed that maximum plasma bupivacaine levels following administration of liposome bupivacaine (4.5 mg/kg IV and 40 mg epidural were similar to maximum plasma bupivacaine levels following a threefold lower dose of bupivacaine HCl (1.5 mg/kg IV and 15 mg epidural.Conclusion: Liposome bupivacaine

  15. Effects of thoracic paravertebral block with bupivacaine versus combined thoracic epidural block with bupivacaine and morphine on pain and pulmonary function after cholecystectomy

    DEFF Research Database (Denmark)

    Bigler, D; Dirkes, W; Hansen, R;

    1989-01-01

    Twenty patients undergoing elective cholecystectomy via a subcostal incision were randomized in a double-blind study to either thoracic paravertebral blockade with bupivacaine 0.5% (15 ml followed by 5 ml/h) or thoracic epidural blockade with bupivacaine 7 ml 0.5% + morphine 2 mg followed by 5 ml...

  16. Does Extended-Release Liposomal Bupivacaine Better Control Pain Than Bupivacaine After Total Knee Arthroplasty (TKA)? A Prospective, Randomized Clinical Trial.

    Science.gov (United States)

    Schroer, William C; Diesfeld, Paul G; LeMarr, Angela R; Morton, Diane J; Reedy, Mary E

    2015-09-01

    Liposomal bupivacaine periarticular injection (PAI) offers sustained bupivacaine release after TKA, but few prospective independent studies exist. In this prospective, blinded study, liposomal bupivacaine was randomized against bupivacaine and incorporated into a comprehensive multimodal pain management protocol. 111 primary TKAs were randomized to receive PAI: 58 patients received 266 mg (20cc) liposomal bupivacaine mixed with 75 mg (30cc) 0.25% bupivacaine, and 53 patients received 150 mg (60cc) 0.25% bupivacaine. Visual analog pain scores and narcotic use were determined. No pain score differences occurred between study and control patients: Day 1: 4.5/4.6 (P=0.73); Day 2: 4.4/4.8 (P=0.27); or Day 3: 3.5/3.7 (P=0.58). Narcotic use was similar during hospitalization, 51.8/54.2 (P=0.34). The study medication costs $285, and the control medication costs $2.80. This finding does not justify the routine use of liposomal bupivacaine.

  17. COMPARATIVE EVALUATION OF INTRATHECAL BUPIVACAINE-FENTANYL AND BUPIVACAINE - CLONIDINE FOR CAESAREAN SECTION IN PREGNANCY INDUCED HYPERTENSION

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    Tripti

    2014-09-01

    Full Text Available BACKGROUND: Pain free postoperative period and early ambulation are the need of the day for mothers and their neonates for early initiation of breast feeding. It is moral responsibility of Anaesthesiologist to provide a safe and pain free postoperative period with use of various techniques and drug combinations. Spinal anaesthesia has been widely used for caesarean section in normalas well as preeclamptic parturients and has been found to be efficaciousand safe. The present study aimed to compare the analgesic efficacy and side effect profile of intrathecal Bupivacaine with Fentanyl and Bupivacaine with Clonidine in cesarean section of parturients with pregnancy induced hypertension (PIH. METHODS: 50 full term parturients with pregnancy induced hypertension scheduled for cesarean section were randomized into 2 groups of 25 each. GROUP BF (Bupivacaine with Fentanyl received 7.5mg of 0.5% hyperbaric Bupivacaine and 20µg Fentanyl intrathecally. GROUP BC (Bupivacaine with Clonidine received 7.5mg of 0.5% hyperbaric Bupivacaine and 60µg clonidine intrathecally. RESULTS: Patients in group BC showed long lasting analgesia compared to group BF (p value<0.05. Both the groups had satisfactory analgesia with hemodynamic stability, however the incidence of hypotension and vasopressor requirement was more in group BC compared to BF. Incidence of pruritus was exceptionally seen in group BF, however more patients were sedated and complained of dry mouth in group BC. Both the groups had comparable APGAR scores with no adverse neonatal effects. CONCLUSION: We conclude use of intrathecal clonidine 60µg and Fentanyl 20µg both provide excellent sensory and motor blockage with lower dose of bupivacaine. Both drugs improved intraoperative analgesia and prolonged the duration of effective analgesia without any adverse effect on neonate neurobehaviour. Fairly good analgesia with less sedation and better haemodynamic stability is observed with 20μg fentanyl

  18. Bupivacaine hydrochloride complexation with some alpha- and beta-cyclodextrins studied by potentiometry with membrane electrodes.

    Science.gov (United States)

    Kopecký, Frantisek; Vojteková, Mária; Kaclík, Pavol; Demko, Marek; Bieliková, Zuzana

    2004-05-01

    Membrane electrodes selective to bupivacaine cations were developed and those with PVC-dibutylphthalate membrane containing sparingly soluble bupivacaine phosphotungstate appeared to be the most suitable. Inclusion complexation of bupivacaine cations with cyclodextrins was studied by potentiometric measurements of the free bupivacaine cation concentration in aqueous solutions of bupivacaine hydrochloride with cyclodextrin using the prepared electrodes. Native alpha-cyclodextrin (alpha-CD) and beta-cyclodextrin (beta-CD), as well as their random-substituted derivatives hydroxypropyl-alpha-cyclodextrin (HP-alpha-CD), hydroxypropyl-beta-cyclodextrin (HP-beta-CD) and methyl-beta-cyclodextrin (M-beta-CD), were chosen for the study. The measured potentiometric data processed both by a linear and nonlinear regression corroborated the formation of weak 1:1 bupivacaine cation-cyclodextrin complexes and the corresponding complexation constants K(11) approximately 50-155 M(-1) were evaluated by the non-linear least-squares method. The mutual order of K(11) values, especially alpha-CD > beta-CD, suggested that the bupivacaine butyl group was mainly responsible for the inclusion complexation; the highest K(11) was exhibited by M-beta-CD followed by alpha-CD. The observed complexation may substantially modify properties of bupivacaine hydrochloride dosage forms with sufficient concentration of cyclodextrin but bupivacaine cations are readily released from the weak cyclodextrin complexes by dilution.

  19. A CLINICAL COMPARISON OF COMPOUNDED SOLUTION (2% XYLOCAINE & 0.5% BUPIVACAINE WITH 0.5% BUPIVACAINE IN EPIDURAL ANALGESIA

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    Sathesha

    2014-09-01

    Full Text Available Epidural Analgesia is used for relief of pain during and following surgical operations, for relief of chronic pain, for relief of pain in labour, reduction of bleeding by producing sympathetic blockade and hypotension during surgery or to supplement light general anaesthesia, thereby suppressing the transmission of afferent impulses and autonomic and hormonal response to surgery. The commonly used drugs for epidural analgesia are 2% xylocaine and 0.5% bupivacaine. Mixing of the local anaesthetics and altering the pH have been found to be safe and cost effective.1,2 our study was a prospective randomized controlled double blind study to investigate effect of the benefits of usage of a compounded solution (2% xylocaine and 0.5% bupivacaine in a 1:1 ratio over a single drug (0.5% bupivacaine and ascertain whether it can be recommended for routine use in epidural analgesia in regular anaesthetic practice.3,4,5 The following parameters are Studied 1 The time of onset of analgesia. 2 The quality of analgesia. 3 The degree of motor blockade. 4 Duration of analgesia. 5 Safety of compounding local anaesthetics. METHODS AND MATERIAL: One Hundred Adult Patients of either sex ranging between 20-60 years of age belonging to ASA grade 1 and II were studied. All patients were at random divided into 2 groups fifty in each group. Group A received 0.5% bupivacaine 15cc. Group B received a mixture of 0.5% bupivacine and 2% xylocaine (7.5cc + 7.5cc RESULTS: Mean time of onset of analgesia in group B was lower (11.50 + 2.05 as compared to group A (22.24 + 2.18 and this difference was statistically highly significant (P<0.001. 16% of group A and 6% of group B required to be changed over to general anaesthesia. Grade IV motor blockade was seen only in 24% of group A and 30% of the group B which is significant. Mean duration of action in group A was higher (128.90 + 6.70 than in group B (98.30 + 5.29 and this difference was statistically significant. CONCLUSIONS: The

  20. COMPARATIVE STUDY BETWEEN EPIDURAL BUPIVACAINE WITH BUPRENORPHINE AND EPIDURAL BUPIVACAINE FOR POST - OPERATIVE ANALGESIA IN ABDOMINAL AND LOWER LIMB SURGERY

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    Nagesh

    2015-02-01

    Full Text Available Epidural administration of various analgesics gained increasing popularity following the discovery of opioid receptors in the spinal cord capable of producing potent analgesia. This effect seems to be greatest when epidural anaesthesia in continued in the post - operative period as epidural analgesia . It is now clear that epidural administration of opioids. Ours was a comparative study between epidural bupivacaine with buprenorphine and epidural bupivacaine for post - operative analgesia in abdominal and lower limb surgery. METHODS: 60 patients undergoing lower abdominal and lower limb surgeries of either sex with ASA grade 1 and 2 a ged between 20 and 60 years for divided into two groups. After completion of the surgery and when the effect of local anaesthetic wears of and the patients complains of pain the intended study drugs were given when visual analogue pain score touched 5 cm m ark. Group – A: Patients received 8ml of 0.25% bupivacaine + 0.15mg of buprenorphine. Group – B: patients received 0.25% of bupivacaine alone. In the post - operative period the following parameters were studied , 1. Onset of analgesia , 2. Duration of analges ia , 3. Vital parameters such as heart beat , blood pressure , respiratory rate , sedation score and visual analogue score were recorded , 4. Side effects like nausea , vomiting , hypotension , respiratory depression , and pruritus allergic reaction were looked for . RESULTS: It is observed that onset of analgesia in Group A (0.25% bupivacaine + 0.15mg buprenorphine was 7.35 min. When compared to Group B which 15.5 min , which is statically significant (P<0.05. Duration of analgesia in Group A is 17.23 hrs compared to Group B , which is 5.2 hrs , this is statically significant (P<0.05. Visual analogue scale was reduced in Group A compared to Group B CONCLUSIONS: Addition of buprenorphine to bupivacaine by epidural injection for post - operative analgesia improves the on set , The duration and the

  1. A COMPARATIVE STUDY OF BUPIVACAINE AND BUPIVACAINE WITH CLONIDINE UNDER SPINAL ANESTHESIA IN PATIENT FOR TOTAL ABDOMINAL HYSTERECTOMY

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    Manuraj

    2015-02-01

    Full Text Available BACKGROUND: Bupivacaine is the most commonly used drug for spinal anesthesia . To improve upon the quality of analgesia and prolong the duration of its action, many adjuvants have been tried. Intrathecal clonidine an α2 adrenoreceptor agonist with analgesic effect at spinal level mediated by postsynaptically situated adrenoreceptor in dorsal horn of spinal cord. Low doses of clonidine and buprenorphine have shown effectiveness in i ntensifying spinal anesthesia. AIM: This study is designed to evaluate the effectiveness of spinal blockade by adding 50μgm clonidine to bupivacaine. SET TINGS AND DESIGN: This a prospective, randomized , comparative clinical study involved 60 ASA grade Ι/ΙΙ patients aged 18 - 55 years undergoing elective hysterectomy under spinal anesthesia after approval from hospital ethics committee with written an d inform ed consent of patients. MATERIALS AND METHODS: 60 ASA grade Ι/ΙΙ patients aged 18 - 55 years selected for the study are divided in two groups of 30 each. Group B (Bupivacaine group patients will receive intrathecally 0.5% hyperbaric bupivacaine 4 ml (Total 4 ml whereas Group C (Clonidine group patient will receive intrathecally 0.5% hyperbaric bupivacaine 3. 5 ml + 50μg (Total 4 ml. The onset time to reach peak sensory and motor level, post - operative analgesia , hem odynamic changes, and side effects were recorded. RESULTS: The onset of sensory and motor blockade was faster in the group C compared to group B [137.60 seconds and 112.22 seconds] (p<0.001, [231.80 seconds and 165.1 seconds] (p<0.001. Duration of sensor y block, motor block and postoperative analgesia [221.4 minutes in group B vs. 362.84 minutes in group C] (P<0.001, was significantly prolonged in group C. There were no significant hemodynamic changes in both the groups. CONCLUSION: Clonidine potentiates bupivacaine spinal anesthesia by increasing the duration and improving the quality of analgesia without significant hemodynamic side

  2. A comparative evaluation of intrathecal bupivacaine alone, sufentanil or butorphanol in combination with bupivacaine for endoscopic urological surgery

    Directory of Open Access Journals (Sweden)

    Manpreet Kaur

    2011-01-01

    Full Text Available Background: The objective of the present study was to compare the onset, degree and recovery time of sensory and motor block and hemodynamic effects of intrathecal bupivacaine alone and bupivacaine with sufentanil or butorphanol in endoscopic urological surgeries. Methods: In a randomized, double-blind study, 90 patients of either sex and age, belonging to ASA Grades I and II, scheduled for elective endoscopic urological surgeries under spinal anesthesia, were allocated into three groups of 30 each. Patients received either 2.5 ml of 0.5% hyperbaric buypivacaine 12.5 mg (Group A, 1.5 ml of 0.5% hyperbaric bupivacaine 7.5 mg with 10 μg sufentanil (Group B or 1.5 ml of 0.5% hyperbaric bupivacaine 7.5 mg with 25 μg butorphanol (Group C. Vital parameters, level, duration and regression of sensory block and motor block and side-effects were recorded and compared. Statistical Analysis Analysis of variance (ANOVA, post hoc test and Chi-square test were used. Results: Intrathecal addition of sufentanil/butorphanol prolonged the duration of sensory block (DOSB compared with bupivacaine alone (DOSB being 156.83±23.83 min, 170.87 ± 22.21 min and 171.17 ± 23.99 min in groups A, B and C, respectively without altering the duration of motor blockade. Bromage score 3 was achieved in 100%, 90% and 54.4% patients in groups A, B and C, respectively. The time to first request for analgesia was 112 ± 46.3 min, 323 ± 65.0 min and 299 ± 73.9 min in groups A, B and C, respectively. Complications were reduced by the addition of butorphanol, which also has a lower tendency than sufentanil to produce pruritus (60%. Conclusions: The analgesia was significantly prolonged in groups B and C; group C had a less-intense motor block. Complications were reduced by the addition of butorphanol, which also has a lower tendency than sufentanil to produce pruritus. Thus, this combination of butorphanol with low-dose bupivacaine is especially beneficial in the geriatric group

  3. A comparative evaluation of intrathecal bupivacaine alone, sufentanil or butorphanol in combination with bupivacaine for endoscopic urological surgery

    Science.gov (United States)

    Kaur, Manpreet; Katyal, Sunil; Kathuria, Suneet; Singh, Prabhjot

    2011-01-01

    Background: The objective of the present study was to compare the onset, degree and recovery time of sensory and motor block and hemodynamic effects of intrathecal bupivacaine alone and bupivacaine with sufentanil or butorphanol in endoscopic urological surgeries. Methods: In a randomized, double-blind study, 90 patients of either sex and age, belonging to ASA Grades I and II, scheduled for elective endoscopic urological surgeries under spinal anesthesia, were allocated into three groups of 30 each. Patients received either 2.5 ml of 0.5% hyperbaric buypivacaine 12.5 mg (Group A), 1.5 ml of 0.5% hyperbaric bupivacaine 7.5 mg with 10 μg sufentanil (Group B) or 1.5 ml of 0.5% hyperbaric bupivacaine 7.5 mg with 25 μg butorphanol (Group C). Vital parameters, level, duration and regression of sensory block and motor block and side-effects were recorded and compared. Statistical Analysis: Analysis of variance (ANOVA), post hoc test and Chi-square test were used. Results: Intrathecal addition of sufentanil/butorphanol prolonged the duration of sensory block (DOSB) compared with bupivacaine alone (DOSB being 156.83±23.83 min, 170.87 ± 22.21 min and 171.17 ± 23.99 min in groups A, B and C, respectively) without altering the duration of motor blockade. Bromage score 3 was achieved in 100%, 90% and 54.4% patients in groups A, B and C, respectively. The time to first request for analgesia was 112 ± 46.3 min, 323 ± 65.0 min and 299 ± 73.9 min in groups A, B and C, respectively. Complications were reduced by the addition of butorphanol, which also has a lower tendency than sufentanil to produce pruritus (60%). Conclusions: The analgesia was significantly prolonged in groups B and C; group C had a less-intense motor block. Complications were reduced by the addition of butorphanol, which also has a lower tendency than sufentanil to produce pruritus. Thus, this combination of butorphanol with low-dose bupivacaine is especially beneficial in the geriatric group of patients

  4. Delayed postoperative gastric emptying following intrathecal morphine and intrathecal bupivacaine.

    LENUS (Irish Health Repository)

    Lydon, A M

    2012-02-03

    PURPOSE: A decrease in the rate of gastric emptying can delay resumption of enteral feeding, alter bioavailability of orally administered drugs, and result in larger residual gastric volumes, increasing the risk of nausea and vomiting. We compared the effects of 1) intrathecal bupivacaine (17.5 mg) and 2) the combination of intrathecal morphine (0.6 mg) and intrathecal bupivacaine (17.5 mg) on the rate of gastric emptying in patients undergoing elective hip arthroplasty. METHODS: Twenty four fasting ASA 1-3 patients were randomly assigned, in a double blind manner, to receive intrathecal hyperbaric bupivacaine (17.5 mg), either alone (group 1), or followed by intrathecal morphine (0.6 mg) (group 2). Gastric emptying was measured (using an acetaminophen absorption technique), twice in each patient; preoperatively, and approximately one hour postoperatively. Gastric emptying parameters are: AUC (area under the plasma acetaminophen concentration time curve), maximum plasma acetaminophen concentration (Cmax), and time to Cmax (tCmax), analyzed using paired Student\\'s t tests. RESULTS: Gastric emptying rates were reduced in both group 1 (AUC = 14.98 (3.8) and 11.05 (4.6) pre- and postoperatively, respectively) and group 2 (AUC = 13.93 (3.59) and 6.4 (3.42) pre- and postoperatively, respectively); the magnitude of the reduction was greater in group 2 [AUC (P = 0.04), Cmax (P = 0.05), tCmax (P = 0.13)]. CONCLUSION: The combination of intrathecal morphine (0.6 mg) and intrathecal bupivacaine (17.5 mg) delays gastric emptying postoperatively.

  5. USE OF DEXMEDETOMIDINE ALONG WITH BUPIVACAINE FOR BRACHIAL PLEXUS BLOCK

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    Rachana Gandhi

    2012-02-01

    Full Text Available Introduction: Supraclavicular brachial plexus block provides safe, effective, low cost anaesthesia with good postoperative analgesia. This study was conducted to compare the postoperative analgesic efficacy and safety of dexmedetomidine for brachial plexus blockade along with bupivacaine. Methodology: This prospective double blind study was conducted on 70 patients of age 18 to 60 years posted for various upper limb surgeries and randomly allocated into two equal groups of 35 each. Control group-C received injection bupivacaine (0.25% 38 milliliter plus 2 milliliter normal saline, dexmedetomidine group-D received injection bupivacaine (0.25% 38 milliliter plus dexmedetomidine 30 microgram (2 milliliter. Assessment of motor and sensory blockade, pulse, systolic blood pressure, respiration and side effects were noted every 5 minutes for first 30 minute and every 10 minute till end of surgery. Duration of analgesia and incidence of various complications following the procedure were observed. Results: It was observed that in control group onset of motor and sensory blockade was faster. Where as, dexmedetomidine group have better hemodynamic stability and greater postoperative analgesia. Only two cases of bradycardia and two cases of hypotension were noticed in dexmedetomidine group-D. [National J of Med Res 2012; 2(1.000: 67-69

  6. Effects of combined perioperative epidural bupivacaine and morphine, ibuprofen, and incisional bupivacaine on postoperative pain, pulmonary, and endocrine-metabolic function after minilaparotomy cholecystectomy

    DEFF Research Database (Denmark)

    Dahl, J B; Hjortsø, N C; Stage, J G

    1994-01-01

    cholecystectomy improves pain relief in the immediate postoperative period, compared to intramuscular morphine. Pulmonary and endocrine-metabolic function is not changed to such degree after minicholecystectomy that epidural analgesia can be demonstrated to have beneficial effects.......BACKGROUND AND OBJECTIVES. The study investigates the effects of combined perioperative continuous epidural bupivacaine and morphine, ibuprofen, and incisional bupivacaine, compared with intermittent systemic morphine, ibuprofen, and incisional bupivacaine, on postoperative pain, respiratory...... function, and endocrine-metabolic alterations associated with minilaparotomy cholecystectomy. METHODS. Thirty-two patients scheduled for cholecystectomy, performed through a minilaparotomy, were randomized to receive general anesthesia with pre- and postoperative thoracic (T7-9) epidural analgesia...

  7. The Effects of Intrathecal Bupivacaine-Fentanyl and Bupivacaine-Morphine on Ephedrine Requirements and Health Status of Fetus in Elective Cesarean Section.

    OpenAIRE

    But, A.Kadir; Öztürk, Erdoğan; Gülhaş, Nurçin; Durmuş, Mahmut; Doğan, Zafer; Ersoy, M. Özcan

    2005-01-01

    Objectives: In this study, we aimed to compare the effects of intrathecal bupivacaine-fentanyl and bupivacainemorphine on ephedrine requirements and on health status of fetus. Methods: We enrolled 54 cases undergoing elective cesarean section in this study. Ringer's lactate was infused to all patients at a rate of 10-12 mL kg-1 preoperatively and 8-10 mL kg hr-1 during operation. Spinal anesthesia was achieved with 2 mL of bupivacaine %0.5 in Group I (n=18), with 1.5 mL of bupivacaine...

  8. The addition of lidocaine to bupivacaine does not shorten the duration of spinal anesthesia

    DEFF Research Database (Denmark)

    Jacobsen, Jon; Husum, Bent; Staffeldt, Henrik

    2011-01-01

    The duration of spinal anesthesia with bupivacaine is often too long for day surgery. A recent study of patients presenting for transurethral surgery suggested that the addition of a small amount of lidocaine to intrathecal hyperbaric bupivacaine could shorten the duration of the sensory and motor...

  9. Postoperative analgesia with continuous epidural sufentanil and bupivacaine : A prospective study in 614 patients

    NARCIS (Netherlands)

    Broekema, AA; Gielen, MJM; Hennis, PJ

    1996-01-01

    To assess the efficacy and safety of postoperative analgesia with continuous epidural sufentanil and bupivacaine, we performed a prospective study in 614 patients undergoing major surgery. Before surgical incision, all patients received an initial dose of 50 mu g sufentanil in 6-10 mL bupivacaine 0.

  10. A comparison of epidural anaesthesia with lignocaine, bupivacaine and a lignocaine-bupivacaine mixture in cats

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    F.M. Lawal

    2009-05-01

    Full Text Available A mixture of 2% lignocaine (LIG and 0.5% bupivacaine (BUP, at respective dose rates of 2 mg/kg and 0.5 mg/kg (LIG-BUP, was compared to LIG (4 mg/kg and BUP (1 mg/kg for lumbosacral epidural anaesthesia in 5 sedated cats. Each cat received all 3 treatment regimens at 1-week intervals. The cats were premedicated with an intramuscular injection of atropine sulphate (0.04 mg/kg and ketamine hydrochloride (10 mg/kg. Onset and duration of analgesia, and time to walking were determined. Associated changes in heart rate (HR, respiratory frequency (ƒR and rectal temperature (RT were recorded. Onset of analgesia with epidurally administered LIG-BUP (4.5 ± 0.7 min, LIG (3.9 ± 1.0 min and BUP (5.0 ± 1.0 min was similar. Duration of analgesia with LIG-BUP (49.4 ± 4.5 min was significantly (P < 0.05 longer than with LIG (40.2 ± 1.0 min but shorter than with BUP (79.4 ± 6.3 min. There were no significant differences in times to standing with LIG-BUP (26.3 ± 6.4 min, LIG (20.4 ± 4.7 min and BUP (22.6 ± 10.3 min. Minimal changes were observed in HR, ƒR and RT. In conclusion, duration of analgesia produced by LIG-BUP was shorter compared with BUP but longer compared with LIG. Neither LIG nor LIG-BUP has any advantage over epidural BUP in terms of onset of analgesia, time to standing and physiological responses. Therefore, lumbosacral epidural administration of BUP appears to be the best choice for a long surgical procedure lasting more than 1 hour when compared with either LIG or LIG-BUP.

  11. Liposomal bupivacaine versus traditional periarticular injection for pain control after total knee arthroplasty.

    Science.gov (United States)

    Bagsby, Deren T; Ireland, Phillip H; Meneghini, R Michael

    2014-08-01

    The purpose of this study was to compare a novel liposomal bupivacaine to traditional peri-articular injection (PAI) in a multi-modal pain protocol for total knee arthroplasty (TKA). A retrospective cohort study compared 85 consecutive patients undergoing TKA with a traditional PAI of ropivacaine, epinephrine and morphine to 65 patients with a liposomal bupivacaine PAI. After the initial 24h, inpatient self-reported pain scores were higher in the liposomal bupivacaine group compared to the traditional PAI group (P = 0.04) and a smaller percentage (16.9%) of patients in the liposomal bupivacaine group rated their pain as "mild" compared to the traditional group (47.6%). Liposomal bupivacaine PAI provided inferior pain control compared to the less expensive traditional PAI in a multi-modal pain control program in patients undergoing TKA.

  12. Bupivacaine drug-induced liver injury: a case series and brief review of the literature.

    Science.gov (United States)

    Chintamaneni, Preethi; Stevenson, Heather L; Malik, Shahid M

    2016-08-01

    Bupivacaine is an established and efficacious anesthetic that has become increasingly popular in postoperative pain management. However, there is limited literature regarding the potential for bupivacaine-induced delayed liver toxicity. Describe cholestasis as a potential adverse reaction of bupivacaine infusion into a surgical wound. Retrospective review of patients' medical records. We report the cases of 3 patients with new onset of cholestatic injury after receiving bupivacaine infusion for postoperative herniorrhaphy pain management. All patients had negative serologic workups for other causes of liver injury. All patients achieved eventual resolution of their liver injury. Bupivacaine-induced liver injury should be on the differential of individuals presenting with jaundice and cholestasis within a month of infusion via a surgically placed catheter of this commonly used anesthetic.

  13. Thoracic epidural catheter for postoperative pain control following an ineffective transversus abdominis plane block using liposome bupivacaine

    Science.gov (United States)

    Terrien, Brian D; Espinoza, David; Stehman, Charles C; Rodriguez, Gabriel A; Connolly, Nicholas C

    2017-01-01

    A 24-year-old female with a history of ulcerative colitis underwent colectomy. The patient received an ineffective transversus abdominis plane (TAP) block with liposome bupivacaine (Exparel) intraoperatively and was started on a hydromorphone patient-controlled analgesia 5 hours after the TAP block, which did not relieve her pain. A continuous thoracic epidural (CTE) was then placed after blood levels of bupivacaine were drawn, and the patient immediately experienced significant pain relief. The combined use of liposome bupivacaine and bupivacaine CTE infusion in the postoperative management of this patient demonstrated no safety concerns, provided excellent analgesia and plasma concentrations of bupivacaine remained far below toxic levels. PMID:28144162

  14. A COMPARATIVE STUDY BETWEEN 0.5% HYPERBARIC BUPIVACAINE AND 0.5% HYPERBARIC BUPIVACAINE WITH 25 mcg FENTANYL IN SPINAL ANAESTHESIA IN OBSTETRIC PATIENTS UNDERGOING ELECTIVE LSCS

    Directory of Open Access Journals (Sweden)

    Abhinav

    2015-03-01

    Full Text Available Neuraxial administration of opioids along with local anesthetics improve the quality of intraoperative analgesia and also provides postoperative pain relief for longer duration . The present study was conducted to study and compare the effects of bupivacaine alone and its combination with fentanyl used intrathecallyin o bstetric patients posted for elective LSCS . 50 ASA grade I and II patients were selected and divided into 2 groups as Group ( I : Bupivacaine and Group ( II: Bupivacaine - Fentanyl group . Haemodynamic variables like systolic and diastolic blood pressure , heart rate were recorded every 3 minutes up to delivery of baby and then every 5 minutes until end of surgery . Sensory block and motor block along with side effects were recorded . Pain was evaluated using visual analogue scale and neonatal outcome assessed using APGAR scoring . The highest sensory level achieved in bupivacaine - fentanyl group was higher than in the group receiving plain bupivacaine . The time taken for sensory regression to T12 and duration of analgesia was longer in the Bupivacaine - Fentanyl g roup . We conclude the combination group prolongs the duration of sensory spinal block , increases the duration of analgesia without increasing the duration of motor block , does not cause any significant side effects and provides stable haemodynamic conditio ns without fetal or maternal compromise .

  15. LABOUR ANALGESIA: EPIDURAL DEXMEDITOMIDINE WITH EITHER BUPIVACAINE OR ROPIVACAINE

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    Varaprasad

    2015-07-01

    Full Text Available BACKGROUND: Pain relief in labour is associated with myths and controversies. Providing effective and safe analgesia has remained a challenge. AIM: The purpose of the study was to compare the effect of analgesia with epidural bupivacain or ropivacain along with dexme ditomidine. METHODS AND MATERIAL: Sixty parturients of ASA grade I and II were randomly selected for the study. Each group consisted of thirty patients. The analgesia, motor loss and level of sedation were studied. RESULTS: There was no significant differ ence between the two groups in maternal satisfaction, analgesia and neonatal outcome .

  16. A Content Incontinent: Report of Liposomal Bupivacaine Induced Fecal Incontinence

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    Emanuel A. Shapera

    2016-01-01

    Full Text Available Proper surgical management of anal fistula demands sound clinical judgment and extraordinary care to prevent incontinence and adequate postoperative pain control and provide satisfactory resolution to optimize quality of life. Fecal incontinence can be a devastating complication of procedures performed for fistula in ano. We report a unique case in which temporary incontinence (for less than 4 days followed injection of liposomal bupivacaine for postoperative pain control after draining seton placement for fistula in ano. Patients and physicians should be aware as it may be mistaken for a more serious anatomical and permanent cause of fecal incontinence.

  17. Effect of intraoperatory peritoneal bupivacaine irrigation on inmediate, 24 hour

    Directory of Open Access Journals (Sweden)

    Navarro Hernando

    2004-09-01

    Full Text Available Objective: To compare the response on inmediate, 24 hour abdominal pain and referred shoulder pain (omalgia, when an intraperitoneal irrigation of bupivacaine was used as opposed to saline irrigation, in a group of patients who has laparoscopy done in a medical center in Cali, between April and June of 2000. Material and methods: After previous authorization and consentment by all 100 patients, a placebo was applied to 50 patients and bupivacaine to the other 50 patients, without randomization. The drug came in unmarked bottles, some of which had the medication and some had only saline and nobody knew beforehand which one was given to the patient. Its effect on post surgical pain was evaluated throught the cromatic visual analog scale, which subjectively determines the intensity of the pain according to colors which range from white to dark red, with a numerical equivalent from 0 to 10, in the following manner: zero (0 no pain , 2 mild, 4 moderate, 6 strong, 8 sevre and 10 intolerable pain. The scale was measured in the postoperative room two hours after procedure. A telephonic follow up was done at 24 hours after surgery, applying the visual analog scale on abdominal and shoulder pain. The information was processed using Epi Info 2000. An univariante and bivariante analysis was done. A comparasion was established using the differences in averages with inmediate abdominal pain and omalgia, and at 24 hours according to the use or not bupivacaine. Results: The variable are described in a univariante manner in relation to the distribution of pain at 2 and 24 hours, as well as the shoulder pain, where the mean score of pain decreases from 3.8, to 2.1 to 1.1 respectively. The variables were also described in a bivariant way comparing the drug and its effect on the intensity of pain at 2 and 24 hours, and the omalgia, where no statistically significant difference was found between the drug, the saline and the scales of pain. The relationship between

  18. Spinal blockades of class I antiarrythmic drugs with bupivacaine by isobolographic analysis in rats.

    Science.gov (United States)

    Chen, Yu-Wen; Chu, Chin-Chen; Chen, Yu-Chung; Leung, Yuk-Man; Wang, Jhi-Joung

    2012-10-18

    Flecainide, quinidine, and mexiletine have been shown to be sodium channel blockers and local anesthetics. The purpose of this study was to examine the interaction of the traditional local anesthetic bupivacaine with flecainide, quinidine, or mexiletine on spinal blockades. To obtain the 50% effective dose (ED(50)) of drugs, dose-dependent responses of spinal blockades of motor and sensory functions with intrathecal flecainide, quinidine, mexiletine, and bupivacaine in rats were constructed. Using a continuum of different fixed drug dose ratios, the interactions of bupivacaine with drugs (flecainide, quinidine, or mexiletine) were evaluated by an isobolographic analysis. Our resulting data showed that flecainide, quinidine, and mexiletine, as well as local anesthetic bupivacaine produced dose-dependent spinal blockades in motor function and nociception. Flecainide had the most potent spinal antinociceptive effect (P<0.01) among these three class I antiarrhythmic drugs. Co-administration of bupivacaine with flecainide, quinidine, or mexiletine displayed an additive effect on spinal blockades of motor function and nociception. We concluded that bupivacaine combined with flecainide, quinidine, or mexiletine exhibited an additive effect on spinal blockades of motor function and nociception. Using such a combination strategy to produce antinociception may potentially provide an improved therapeutic separation from myocardial toxicity occurred after spinal bupivacaine.

  19. Epidural blood flow and regression of sensory analgesia during continuous postoperative epidural infusion of bupivacaine

    DEFF Research Database (Denmark)

    Mogensen, T; Højgaard, L; Scott, N B;

    1988-01-01

    Epidural blood flow was measured in seven patients undergoing elective abdominal surgery during combined lumbar epidural and general anesthesia. After an initial dose of 20 ml plain bupivacaine 0.5%, a continuous epidural infusion of bupivacaine 0.5% (8 ml/hr) was given for 16 hours for postopera......Epidural blood flow was measured in seven patients undergoing elective abdominal surgery during combined lumbar epidural and general anesthesia. After an initial dose of 20 ml plain bupivacaine 0.5%, a continuous epidural infusion of bupivacaine 0.5% (8 ml/hr) was given for 16 hours...... surgery, and 8, 12, and 16 hours later during the continuous infusion. Initial blood flow was 6.0 +/- 0.7 ml/min per 100 g tissue (mean +/- SEM). After epidural bupivacaine, blood flow increased in all seven patients to 7.4 +/- 0.7 ml (P less than 0.02). Initial level of sensory analgesia was T4.5 +/- 0...... than 0.03) in the other five patients as the level of sensory analgesia regressed postoperatively. These data suggest that changes in epidural blood flow during continuous epidural infusion of bupivacaine, and thus changes in rates of vascular absorption of bupivacaine from the epidural space, may...

  20. Growth Inhibition by Bupivacaine Is Associated with Inactivation of Ribosomal Protein S6 Kinase 1

    Directory of Open Access Journals (Sweden)

    Mushtaq Ahmad Beigh

    2014-01-01

    Full Text Available Bupivacaine is an amide type long acting local anesthetic used for epidural anesthesia and nerve blockade in patients. Use of bupivacaine is associated with severe cytotoxicity and apoptosis along with inhibition of cell growth and proliferation. Although inhibition of Erk, Akt, and AMPK seemingly appears to mediate some of the bupivacaine effects, potential downstream targets that mediate its effect remain unknown. S6 kinase 1 is a common downstream effector of several growth regulatory pathways involved in cell growth and proliferation known to be affected by bupivacaine. We have accordingly attempted to relate the growth inhibitory effects of bupivacaine with the status of S6K1 activity and we present evidence that decrease in cell growth and proliferation by bupivacaine is mediated through inactivation of S6 kinase 1 in a concentration and time dependent manner. We also show that ectopic expression of constitutively active S6 kinase 1 imparts substantial protection from bupivacaine induced cytotoxicity. Inactivation of S6K1 though associated with loss of putative mTOR mediated phosphorylation did not correspond with loss of similar phosphorylations in 4EBP1 indicating that S6K1 inhibition was not mediated through inactivation of mTORC1 signaling pathway or its down regulation.

  1. A COMPARATIVE STUDY OF HEAMOD Y NAMIC PARAMETERS IN LSCS WITH INTRATHECAL FENTANYL - BUPIVACAINE COMBINATION AND BUPIVACAINE ALONE

    Directory of Open Access Journals (Sweden)

    Ramana Prasad

    2015-10-01

    Full Text Available BACKGROUND: Caesarean section is considered as a major abdominal surgery, which requires profound blockade of spinal segments. Spinal anaesthesia is the most elegant approach providing profound anaesthesia and excellent operative conditions. Hypotension, the most clinically significant effect of spinal anaesthesia can occur rapidly and have a significant impact on neonatal outcome. There has been interest in using analgesic additives to local anaesthetics to decrease the dose of local anaesthetics and reduce in incidence of hypotension without compromising intra - operative analgesia, enabling faster motor recovery and providing efficient post - operative analgesia. This study was conducted t o compare the incidence of hypotension between intrathecal fentanyl - bupivacaine combinations with bupivacaine alone in patients undergoing elective LSCS. INTRODUCTION: In Caesarean section, the surgery is major and profound blockade of many spinal segments is required. Strong visceral stimulation is present, sudden cardiovascular changes is compounded by posture and fetal wellbeing may be influenced by several physiologic variables and drugs. Spinal anaesthesia is perhaps the most efficient and elegant appr oach to this challenge. With a small needle and little amount of drug, profound anaesthesia and excellent operating conditions can be readily provided for this major intrabdominal surgery. Spinal hypotension, the most clinically significant aspect of spina l anaesthesia can occur rapidly and may have a significant impact on the neonatal outcome. Recently, there has been an interest in using analgesic additives to subarachnoid local anaesthetic dose so as to reduce the incidence and degree of hypotension but at the same time without compromising intraoperative analgesia and also to enable faster recovery and providing efficient post - operative analgesia. Opioids were the first clinically used selective spinal analgesics after the discovery of opioids

  2. COMPARATIVE STUDY OF INTRAVENOUS DEXMEDETOMIDINE PLUS INTRATHECAL BUPIVACAINE VS INTRATHECAL BUPIVACAINE ALONE FOR PROLONGATION OF SPINAL ANALGESIA

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    Rani

    2015-11-01

    Full Text Available : BACKGROUND: The prolongation of spinal anaesthesia by using clonidine through the oral, intravenous and spinal route has been known. The new alpha-2 agonist, dexmedetomidine has been proved to prolong the spinal anaesthesia through the intrathecal route. We hypothesized that dexmedetomidine when administered intravenously following spinal block also prolongs spinal analgesia. A placebo controlled randomized controlled trial study was done. METHODOLOGY: 50 Patients were randomly allocated into two equal groups group D and group C. Both group received spinal hyperbaric bupivacaine 15mg intrathecally. Patients in group D received intravenously a loading dose of 1mcg/kg dexmedetomidine over 10 min followed by C maintenance dose of 0.5mcg/kg/hr till the end of surgery. Patients in group C (The control group received normal saline. The regression times to reach S1 sensory level and bromage 0 motor scale, hemodynamic changes and the level of sedation were recorded. RESULTS: The duration of sensory block was longer in intravenous dexmedetomidine group compared with control group (264.32+15.3 min vs 164.2+13.12 min, p 0.001. The duration of motor block was longer in dexmedetomidine group than control group (198.8+16.9 min vs 135.8+12.38 min, p 0.001 CONCLUSION: Intravenous dexmedetomidine administration prolonged the sensory and motor blocks of bupivacaine spinal analgesia with good sedation effect and hemodynamic stability. The incidence of bradycardia is significantly high when intravenous dexmedetomidine is used as an adjuvant to bupivacaine spinal anaesthesia. Dexmedetomidine induced bradycardia and hypotension can be easily managed with atropine and mephentermine respectively. Dexmedetomidine provides excellent sedation and postoperative analgesia.

  3. Liposomal bupivacaine: an innovative nonopioid local analgesic for the management of postsurgical pain.

    Science.gov (United States)

    Candiotti, Keith

    2012-09-01

    Local anesthetics are a cornerstone of multimodal pain control strategies in the surgical setting as they have a long history of use and an established safety profile. Although effective, their duration of action is relatively short, which usually leads to the use of other agents, such as opioids, for effective postsurgical pain control in most patients. A medical need exists to extend the duration of analgesia with local anesthetics to help reduce the reliance on opioids in the postsurgical setting. Liposomal bupivacaine uses a product delivery platform to release bupivacaine slowly over 96 hours after infiltration at the surgical site. Liposomal bupivacaine was compared with placebo in two pivotal, multicenter, randomized, double-blind, parallel-group trials in 189 adults undergoing soft-tissue surgery (hemorrhoidectomy) and 193 adults undergoing orthopedic surgery (bunionectomy). Among patients undergoing hemorrhoidectomy, liposomal bupivacaine significantly reduced cumulative pain scores for up to 72 hours (primary end point) as measured by the area under the curve of pain scores on the numeric rating scale (pliposomal bupivacaine significantly reduced total consumption of rescue opioids (p=0.0077) and cumulative pain scores as measured by the area under the curve of pain scores on the numeric rating scale (p=0.0005) during the first 24 postsurgical hours (primary end point) relative to placebo. Furthermore, liposomal bupivacaine also significantly delayed the time to first use of opioid rescue (pliposomal bupivacaine were nausea, vomiting, and constipation. No adverse effects on the QTc interval or cardiac safety signal have been detected in the clinical trial development program (823 patients) when liposomal bupivacaine was infiltrated into the surgical site. The beneficial effects of liposomal bupivacaine on postsurgical pain management and opioid use, significantly reducing both, are likely to translate into improved clinical and economic outcomes.

  4. Absorption of Bupivacaine after Administration of a Lozenge as Topical Treatment for Pain from Oral Mucositis.

    Science.gov (United States)

    Mogensen, Stine; Sverrisdóttir, Eva; Sveinsdóttir, Kolbrún; Treldal, Charlotte; Jensen, Kenneth; Jensen, Anders Bonde; Kristensen, Claus Andrup; Jacobsen, Jette; Kreilgaard, Mads; Petersen, Janne; Andersen, Ove

    2017-01-01

    The aim was to investigate systemic exposure after administration of a novel bupivacaine lozenge in healthy individuals with normal mucosa and in head and neck cancer (HNC) patients with oral mucositis. A lozenge containing 5, 10, 25 and 50 mg bupivacaine, respectively, was administered as single dose to 10 healthy individuals, and a lozenge containing 25 mg bupivacaine was administered as single dose to 10 HNC patients with oral mucositis and as multiple doses to five patients with HNC. Blood samples were collected for 6 hr from the healthy individuals and 3 hr from the patients with HNC, respectively, after administration. The plasma concentration-time profiles of bupivacaine were fitted to pharmacokinetic models using nonlinear mixed-effects modelling, evaluating demographics and health status as covariates. The population pharmacokinetics (PK) of bupivacaine lozenge was best described by a two-compartment distribution model with absorption transit compartments. All the observed plasma concentrations were well below the bupivacaine concentrations (2000-2250 ng/ml) which have caused toxic symptoms. The PK model suggested that relative bioavailability was two times higher in HNC patients with oral mucositis grade 1-2 and three times higher in HNC patients with oral mucositis grade 3-4 than in the healthy individuals. Simulations showed that the plasma concentrations would be below the toxic limit after repeated dosing every second hour with 25 mg bupivacaine for five days. The 25-mg bupivacaine lozenges were safe without systemic toxic levels of bupivacaine or risk of side effects. Based on PK simulations of repeated doses of 25 mg every two hours for 16 hr a day, the lozenges can be administered with minimum risk of exceeding the toxic limit.

  5. Comparison of efficacy of intraarticular application of tenoxicam, bupivacaine and tenoxicam: bupivacaine combination in arthroscopic knee surgery.

    Science.gov (United States)

    Talu, Gül K; Ozyalçin, Süleyman; Koltka, Kemallettin; Ertürk, Engin; Akinci, Ozkan; Aşik, Mehmet; Pembeci, Kamil

    2002-11-01

    Arthroscopic knee surgery is one of the most common surgeries done in outpatient settings; however, postoperative pain is believed to be the major barrier for discharge and early rehabilitation. In this study we evaluated and compared the efficacy of intraarticular application of long-lasting non-steroidal analgesic drug tenoxicam, a long-lasting local anaesthetic bupivacaine and combination of the two on postoperative pain after arthroscopic knee surgery. With the approval of the local ethics committee and signed informed consent of the patients, 75 American Society of Anesthesiologists I-II patients aged between 18 and 65 years going under elective arthroscopic meniscectomy were included in this randomized, blind, prospective study. The patients were divided into three groups: group-T (GT) patients ( n=25) had intraarticular 20 mg of tenoxicam in 20 ml normal saline; group-B (GB) patients ( n=25) had 50 mg bupivacaine in 20 ml normal saline (0.25%); group-BT (GBT) patients ( n=25) had intraarticular 20 mg of tenoxicam and 50 mg bupivacaine (0.25%) in 20 ml normal saline after completion of the surgery and before deflation of the tourniquet. Postoperative analgesia was maintained by intravenous tramadol hydrochloride 50 mg/s at the first 4 h and paracetamol 500 mg and codeine 7.5 mg preparation (Pacofen) as needed (maximum six per day) during the study period. The numeric rating scale (NRS) values were at rest and at active-passive motion at 4, 12, 24 and 48 h, total analgesic consumption, at 4 h for tramadol and at the end of 48 h for oral medication; and patient satisfaction at the end of 48 h was evaluated and recorded. The demographic features of the patients, and tourniquet times, were found to be similar between the groups. Group BT had significantly lower NRS values than GB at 12 h at rest. Group BT was found to have significantly lower NRS values at 4 h compared with GT, and significantly lower NRS values at 12 h compared with GB. Group BT was found to

  6. THE EFFICACY OF CLONIDINE ADDED TO BUPIVACAINE AS COMPARED WITH BUPIVACAINE ALONE USED IN SUPRACLAVICULAR BRACHIAL PLEXUS BLOCK FOR UPPER LIMB SURGERIES

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    Suchismita

    2014-09-01

    Full Text Available : INTRODUCTION: Clonidine when added to local anesthetic solutions improved peripheral nerve blocks by reducing the onset time, improving the efficacy of the block during surgery and extending postoperative analgesia. MATERIALS AND METHODS: Sixty patients aged 18 to 60 years, scheduled for elective orthopedic operations in the upper limb, of ASA Grade I or II were included in the study. We conducted the study with 2 groups consisting of 30 patients each to compare the effects of Clonidine added to Bupivacaine with Bupivacaine alone in supraclavicular brachial plexus block. First group received 40 ml of Bupivacaine 0.25% plus 0.15mg (1ml of Clonidine, second group had 40 ml of Bupivacaine 0.25% plus 1 ml 0.9% Saline respectively. The onset as well as duration of sensory and motor block along with monitoring of heart rate, NIBP, oxygen saturation were recorded. The level of sedation and side effects were also noted. RESULTS: In this study the addition of Clonidine to Bupivacaine resulted in faster onset (study group 15.2±1.44, control group 20.4±1.12, p˂0.001 and longer duration of sensory block (study group 544±31.2, control group 302±34.4, p=0.0363 as well as analgesia (study group 561.2±30.96, control group 324.4±34.08, p=0.0001 without any adverse hemodynamic changes.

  7. The comparative study of epidural levobupivacaine and bupivacaine in major abdominal surgeries

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    Ali Uzuner

    2011-01-01

    Conclusions: The results of our study suggest that same concentration of epidural levobupivacaine and bupivacaine with fentanyl provide stable postoperative analgesia and both were found safe for the patients undergoing major abdominal surgery.

  8. Topical versus caudal ketamine/bupivacaine combination for postoperative analgesia in children undergoing inguinal herniotomy

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    Hala Saad Abdel-Ghaffar

    2017-01-01

    Conclusion: Wound instillation of bupivacaine/ketamine is a simple, noninvasive, and effective technique that could be a safe alternative to CK for postoperative analgesia in children undergoing inguinal hernia repair.

  9. Efficacy of triamcinolone acetonide and bupivacaine for pain after lumbar discectomy.

    LENUS (Irish Health Repository)

    Bahari, Syah

    2012-02-01

    The study is a prospective blinded randomised controlled trial to compare the efficacy of triamcinolone acetonide, bupivacaine or in combination in managing pain after lumbar discectomy. Patients undergoing primary single-level lumbar discectomy were randomised. Triamcinolone acetonide, bupivacaine or in combination was instilled at the nerve root as decompression. Preoperative, day 1 and 6 weeks pain score, 24-h postoperative opiate requirements and duration of inpatient stay were recorded. Data was analysed using Mann-Whitney test for statistical significance. 100 patients were recruited. A significant difference was noted in day one postoperative mean pain score, mean 24-h opiate requirement and mean inpatient stay in the triamcinolone acetonide and bupivacaine group. At 8 weeks postoperatively, no significant differences were seen in the pain score in all groups. Significant postoperative pain reduction and opiate requirements in the first 24 h, and significantly shortened duration of inpatient stay were achieved in the triamcinolone acetonide and bupivacaine group compared with other groups.

  10. Dexamethasone prolongs local analgesia after subcutaneous infiltration of bupivacaine microcapsules in human volunteers

    DEFF Research Database (Denmark)

    Holte, Kathrine; Werner, Mads U; Lacouture, Peter G;

    2002-01-01

    BACKGROUND: The addition of small amounts of dexamethasone to extended-release formulations of bupivacaine in microcapsules has been found to prolong local analgesia in experimental studies, but no clinical data are available. METHODS: In a double-blinded study, 12 healthy male volunteers were...... randomized to receive simultaneous subcutaneous injections of bupivacaine microcapsules with dexamethasone and bupivacaine microcapsules without dexamethasone in each calf. Local analgesia was assessed with a validated human pain model; main parameters evaluated were thermal, mechanical, and pain detection...... curve [AUC]) were considered best estimate of analgesia. Safety evaluations were performed daily for the first week and at 2 weeks, 6 weeks, and 6 months after injection. RESULTS: The addition of dexamethasone significantly prolonged local analgesia of bupivacaine microcapsules without influence...

  11. Plasma concentrations and pharmacokinetics of bupivacaine with and without adrenaline following caudal anaesthesia in infants

    DEFF Research Database (Denmark)

    Hansen, Tom Giedsing; Morton, N S; Cullen, P M

    2001-01-01

    The aim of this study was to determine whether the use of adrenaline 1/400000 added to 0.25% bupivacaine significantly delays the systemic absorption of the drug from the caudal epidural space in young infants.......The aim of this study was to determine whether the use of adrenaline 1/400000 added to 0.25% bupivacaine significantly delays the systemic absorption of the drug from the caudal epidural space in young infants....

  12. Investigating the Effects of Adding Fentanyl to Bupivacaine in Spinal Anesthesia of Opium-addicted Patients

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    H Satari

    2014-10-01

    Full Text Available Introduction: Spinal anesthesia in opium-addicted patients can be associated with many complications. Hence, this study aimed to investigate sensory and motor block characteristics, duration of postoperative analgesia, hemodynamic and side effects by adding Fentanyl to bupivacaine in spinal Anesthesia of opium-addicted patients. Methods: In a double-blind randomized clinical trial, 60 American society of Anesthesiology (ASA class I and II opium-addicted patients under spinal anesthesia in lower abdominal and lower limb operations were randomly classified into two groups of spinal anesthesia with bupivacaine and bupivacaine-fentanyl. Clinical symptoms, side effects, the duration of sensory and motor block, initiation of analgesia requirement and sensory block were assessed. Results: The study results indicated no significant difference between bupivacaine and bupivacaine-fentanyl groups in regard with demographic, side effects, blood pressure and heart rate, though a significant difference was observed in respiratory rate 5min, 10min, 45min, 75min and 90 min after block. Duration of sensory (100.33 to 138.83 and motor block (93.43 to 107.66 and , initiation of analgesia requirement (165.33 to 187.76 was significantly longer in bupivacaine-fentanyl, though initiation of sensory block (8.83 to 4.93 was significantly longer in bupivacaine. Conclusion: Addition of fentanyl to bupivacaine in spinal anesthesia increases the duration of sensory and motor block and initiation of analgesia requirement in opium-addicted patients and also decreases initiation of sensory block in these patients.

  13. Impact of volume expansion on the efficacy and pharmacokinetics of liposome bupivacaine

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    Hadzic A

    2015-12-01

    Full Text Available Admir Hadzic,1,2 John A Abikhaled,3 William J Harmon4 1Department of Anesthesiology, The New York School of Regional Anesthesia (NYSORA, New York, NY, USA; 2Department of Anesthesiology, Ziekenhouse Oost Limburgh, Genk, Belgium; 3Austin Surgeons, Austin, TX, 4Urology San Antonio, San Antonio, TX, USA Abstract: Liposome bupivacaine is a prolonged-release liposomal formulation of bupivacaine indicated for single-dose infiltration into the surgical site to produce postsurgical analgesia of longer duration than traditional local anesthetics. This review summarizes the available data on how volume expansion may impact the analgesic efficacy of liposome bupivacaine. The Phase II and III clinical studies that involved surgical site administration of liposome bupivacaine at various concentrations in different surgical settings revealed no apparent concentration–efficacy relationship. A single-center, prospective study comparing the efficacy of transversus abdominis plane infiltration with liposome bupivacaine administered in a lower (266 mg/40 mL vs a higher (266 mg/20 mL dose concentration in subjects undergoing robotic-assisted laparoscopic prostatectomy also reported similar postsurgical pain intensity scores and opioid usage in both treatment groups. The pharmacokinetic profile of liposome bupivacaine following subcutaneous injections in rats was unaltered by differences in drug concentration, dose, or injection volume within the ranges tested. Volume expansion of liposome bupivacaine to a total volume of 300 mL or less does not appear to impact its clinical efficacy or pharmacokinetic profile, thus allowing flexibility to administer the formulation across a wide range of diluent volumes. Keywords: pain, analgesia, liposome bupivacaine, dose, concentration, dilution 

  14. In vivo release of bupivacaine from subcutaneously administered oily solution. Comparison with in vitro release

    DEFF Research Database (Denmark)

    Larsen, Dorrit Bjerg; Joergensen, Stig; Olsen, Niels Vidiendal;

    2002-01-01

    A non-randomized cross-over study was performed with bupivacaine HCl (5 mg x ml(-1)) aqueous solution and bupivacaine free base (4.44 mg x ml(-1)) in Viscoleo/castor oil 2:1 (v/v) administered s.c. to male Wistar rats. Plasma levels were analyzed by LC-MS. Plasma profiles obtained after administr....... This led to establishment of an in vitro/in vivo correlation for this particular formulation....

  15. Bupivacaine in microcapsules prolongs analgesia after subcutaneous infiltration in humans: a dose-finding study

    DEFF Research Database (Denmark)

    Pedersen, Juri L; Lillesø, Jesper; Hammer, Niels A;

    2004-01-01

    In this study, we examined the onset and duration of local analgesic effects of bupivacaine incorporated into biodegradable microcapsules (extended-duration local anesthetic; EDLA) administered as subcutaneous infiltrations in different doses in humans. In 18 volunteers, the skin on the medial calf...... concentrations were evaluated. No serious side effects were observed for up to 6 mo after administration. In conclusion, bupivacaine incorporated in microcapsules provided analgesia for 96 h after subcutaneous infiltration....

  16. Population pharmacokinetics of bupivacaine in combined lumbar and sciatic nerve block

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    Hanene Eljebari

    2014-01-01

    Full Text Available Objectives: The primary aim of this study was to establish the population pharmacokinetic (PPK model of bupivacaine after combined lumbar plexus and sciatic nerve blocks and secondary aim is to assess the effect of patient′s characteristics including age, body weight and sex on pharmacokinetic parameters. Materials and Methods: A total of 31 patients scheduled for elective lower extremity surgery with combined lumbar and sciatic nerve block using plain bupivacaine 0.5% were included. The total bupivacaine plasma concentrations were measured before injection and after two blocks placement and at selected time points. Monitoring of bupivacaine was made by high performance liquid chromatography (HPLC with ultraviolet detection. Non-linear mixed effects modeling was used to analyze the PPK of bupivacaine. Results: One compartment model with first order absorption, two input compartments and a central elimination was selected. The Shapiro-Wilks test of normality for normalized prediction distribution errors for this model (P = 0.156 showed this as a valid model. The selected model predicts a population clearance of 930 ml/min (residual standard error [RSE] = 15.48%, IC 95% = 930 ± 282.24 with inter individual variability of 75.29%. The central volume of distribution was 134 l (RSE = 12.76%, IC = 134 ± 33.51 L with inter individual variability of 63.40%. The absorption of bupivacaine in two sites Ka1 and Ka2 were 0.00462/min for the lumbar site and 0.292/min for the sciatic site. Age, body weight and sex have no effect on the bupivacaine pharmacokinetics in this studied population. Conclusion: The developed model helps us to assess the systemic absorption of bupivacaine at two injections sites.

  17. [Prolongation of Bupivacaine spinal anaesthesia by oral and intramuscular Clonidine].

    Science.gov (United States)

    Dziubdziela, Włodzimierz; Jałowiecki, Przemysław; Kawecki, Piotr

    2003-01-01

    The effect of oral and intramuscular clonidine premedication on the duration of sensory and motor blockade and postoperative analgesia during bupivacaine spinal anaesthesia was studied in 102 ASA physical status I-II patients scheduled for lower limbs orthopaedic surgery. In all cases one hour before anaesthesia midazolam (0.1-0.15 mg/kg) was applied orally and isotonic saline solution (10 ml/kg) was infused intravenously. The patients were randomly allocated into one of the following groups: oral (A) or intramuscular (B) clonidine premedication (0.15 mg) (n = 33) and oral or intramuscular premedication by placebo (C) (n = 36). All patients received 10-20 mg of 0.5% hyperbaric bupivacaine intrathecally. Sensory blockade (SB) was evaluated by pinprick and motor blockade (MB) according to Bromage's scale. The following parameters were measured: duration of motor and sensory block, requirement for postoperative analgesia (buprenorfine); systolic, diastolic and mean blood pressures; heart rate; oxyhemoglobin saturation (SpO2) and adverse events. As far as sex, body weight, age, height, ASA grade, dose of midazolam and bupivacaine, the onset of sensory and motor blockade, level of sensory analgesia, type of surgery and its average duration between groups were concerned, no differences were observed (p > 0.05). Both oral and intramuscular premedication with clonidine increased significantly the duration of motor (A--185.9 +/- 59.3; B--190.9 +/- 66.3 min) and sensory (A--216.2 +/- 69.4; B--254.2 +/- 76.8 min) blockade in comparison with placebo (MB--141.9 +/- 56.6; SB--156.7 +/- 62.9 min) (p premedication with clonidine intensified the sedative effect of midazolam (p clonidine (A--0.6 +/- 0.2; B--0.5 +/- 0.2 mg) nearly twice as small as than in a control group (1.1 +/- 0.2 mg) (p premedication with 0.15 mg of oral and intramuscular clonidine. The application of clonidine reduces the early postoperative analgesic requirements. The side effects are more pronounced with the

  18. Bupivacaine induces apoptosis through caspase-dependent and -independent pathways in canine mammary tumor cells.

    Science.gov (United States)

    Chiu, Yi-Shu; Cheng, Yeong-Hsiang; Lin, Sui-Wen; Chang, Te-Sheng; Liou, Chian-Jiun; Lai, Yu-Shen

    2015-06-01

    Local anesthetics have been reported to induce apoptosis in various cell lines. In this study, we showed that bupivacaine also induced apoptosis in DTK-SME cells, a vimentin(+)/AE1(+)/CK7(+)/HSP27(+), tumorigenic, immortalized, canine mammary tumor cell line. Bupivacaine induced apoptosis in DTK-SME cells in a time- and concentration-dependent manner. Apoptosis-associated morphological changes, including cell shrinkage and rounding, chromatin condensation, and formation of apoptotic bodies, were observed in the bupivacaine-treated DTK-SME cells. Apoptosis was further confirmed with annexin V staining, TUNEL staining, and DNA laddering assays. At the molecular level, the activation of caspases-3, -8, and -9 corresponded well to the degree of DNA fragmentation triggered by bupivacaine. We also demonstrated that the pan-caspase inhibitor, z-VAD-fmk, only partially inhibited the apoptosis induced by bupivacaine. Moreover, treated cells increased expression of endonuclease G, a death effector that acts independently of caspases. Our data suggested that bupivacaine-induced apoptosis occurs through both caspase-dependent and caspase-independent apoptotic pathways.

  19. Liposomal Bupivacaine vs Interscalene Nerve Block for Pain Control After Shoulder Arthroplasty: A Retrospective Cohort Analysis.

    Science.gov (United States)

    Hannan, Casey V; Albrecht, Matthew J; Petersen, Steve A; Srikumaran, Uma

    The aim of this study was to compare liposomal bupivacaine and interscalene nerve block (ISNB) for analgesia after shoulder arthroplasty. We compared 37 patients who received liposomal bupivacaine vs 21 who received ISNB after shoulder arthroplasty by length of hospital stay (LOS), opioid consumption, and postoperative pain. Pain was the same in both groups for time intervals of 1 hour and 8 to 14 hours postoperatively. Compared with ISNB patients, liposomal bupivacaine patients reported less pain at 18 to 24 hours (P = .001) and 27 to 36 hours (P = .029) and had lower opioid consumption on postoperative days 2 (P = .001) and 3 (P = .002). Mean LOS for liposomal bupivacaine patients was 46 ± 20 hours vs 57 ± 14 hours for ISNB patients (P = .012). Sixteen of 37 liposomal bupivacaine patients vs 2 of 21 ISNB patients were discharged on the first postoperative day (P = .010). Liposomal bupivacaine was associated with less pain, less opioid consumption, and shorter hospital stays after shoulder arthroplasty compared with ISNB.

  20. COMPARATIVE STUDY OF 0.5% BUPIVACAINE AND 0.5% BUPIVACAINE WITH CLONIDINE (30μg FOR SPINAL ANAESTHESIA

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    Shilpashri

    2015-09-01

    Full Text Available In the present day practice of Anesthesiology, bupivacaine is the most commonly used drug for spinal anesthesia. To improve upon the quality of analgesia and prolong the duration of its action, many adjuvants have been tried. Intrathecal clonidine an α2 adrenceptor agonist has potent central antinoceptive properties with analgesic effect at spinal level mediated by postsynaptically situated adrenoreceptor in dorsal horn of spinal cord. Lo w doses of clonidine have shown effectiveness in intensifying spinal anesthesia. Hence this study was done in our institute to evaluate the efficacy of spinal anesthesia with clonidine added to hyperbaric bupivacaine in elective lower limb, lower abdominal, gynaecological and urological surgeries under spinal anaesthesia. This prospective, single center parallel group, double blind study conducted over a span of 1 year with 100 patients, was effective in proving that Clonidine potentiates bupivacaine spinal anesthesia by increasing the duration and improving the quality of analgesia without producing significant hemodynamic side effects and with mild sedation.

  1. Analgesic Efficacy of Transverse Abdominal Plane Block after Elective Cesarean Delivery – Bupivacaine with Fentanyl versus Bupivacaine Alone: A Randomized, Double-blind Controlled Clinical Trial

    Science.gov (United States)

    John, Roshan; Ranjan, R. V.; Ramachandran, T. R.; George, Sagiev Koshy

    2017-01-01

    Background: The analgesic benefit of transversus abdominis plane (TAP) blocks for cesarean delivery remains controversial. In our study, we compared the analgesic efficacy of TAP block using local anesthetic bupivacaine and adjunct fentanyl with bupivacaine alone in patients undergoing elective cesarean section. Methods: Our study was a randomized, double-blind, controlled clinical trial where sixty patients undergoing elective cesarean delivery under subarachanoid block (2 ml of 0.5% bupivacaine) were randomized into two groups, A and B. At the end of the surgical procedure, bilateral TAP block was performed guided by the ultrasound. Group A received 38 ml of 0.25% bupivacaine and 2 ml of 50 μg of fentanyl, whereas Group B received 38 ml of 0.25% bupivacaine + 2 ml of normal saline. The total volume was divided equally and administered bilaterally. Each patient was assessed for 24 h after TAP block, for time to rescue analgesia, pain using visual analog scale (VAS) score at rest and on movement, hemodynamic parameters (heart rate and blood pressure), nausea, vomiting, and sedation. Diclofenac 75 mg was given as rescue analgesia when the patient complained of pain or when VAS score >4. Results: Prolonged postoperative analgesia was noticed with both the groups, with a mean time to rescue analgesia of approximately 6.5 h. There was no significant difference in time to rescue analgesia (6.49 ± 0.477 vs. 6.5 ± 0.480) when both the groups were compared among themselves. The pain scores among the two groups when compared did not show any added benefit. Incidence of nausea, vomiting, and sedation when compared between both the groups showed no difference. Conclusion: The TAP block as a part of a multimodal analgesic regimen definitely has a role in providing superior analgesia in the postoperative period. However, adjunct fentanyl to local anesthetic bupivacaine was found to have no added advantage when quality and duration of analgesia was compared.

  2. EFFICACY OF CLONIDINE AS AN ADJUVANT TO BUPIVACAINE FOR CAUDAL BLOCK IN CHILDREN UNDERGOING INFRA - UMBILICAL SURGERY

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    Dilip Kumar

    2015-10-01

    Full Text Available Caudal epidural analgesia with bupivacaine is common in paediatric anaesthesia for providing intra and postoperative analgesia. But duration of analgesia even with bupivacaine; long acting anaesthetic is short only 4-6hrs. Hence, several adjuvants have been tried to prolong the duration of action of bupivacaine. We evaluated the efficacy of clonidine added to bupivacaine in prolonging the analgesic effect provided by caudal bupivacaine in children undergoing infra-umbilical surgery. Forty children, aged one to seven years, American Society of Anaesthesiologists (ASA Grade I/II, undergoing infra-umbilical surgery, were included in prospective randomized double blind study to one of two groups: caudal analgesia with 0.75 ml/kg of 0.25% bupivacaine in normal saline (Group A or caudal analgesia with 0.75ml/kg of 0.25% bupivacaine with 1 μg/kg of clonidine in normal saline (Group B. Post-operative pain was assessed for 24 hours using the Objective Pain Scale (OPS. The mean duration of analgesia was significantly longer in Group B (10.2 Hrs. than in Group A (4.2 1Hrs; P0.05. The requirement of rescue medicine was lesser in Group B. Clonidine as an adjunct to bupivacaine prolongs the post-operative pain relief in children and is safe compared to bupivacaine alone in paediatric infra umbilical surgeries.

  3. High-performance liquid chromatography using UV detection for the simultaneous quantification of ropivacaine and bupivacaine in human plasma.

    Science.gov (United States)

    Gaudreault, François; Drolet, Pierre; Varin, France

    2009-12-01

    A specific high-performance liquid chromatography assay coupled with UV detection has been developed and validated for the simultaneous determination of ropivacaine and bupivacaine in human plasma. A liquid-liquid back extraction procedure was used to increase specificity, and very good and consistent recoveries were obtained: 93%-95% for ropivacaine and 90%-96% for bupivacaine. The lowest limit of quantification was 4 and 8 ng/mL for ropivacaine and bupivacaine, respectively. The method was sensitive, reproducible (coefficient of variation bupivacaine in a perioperative context.

  4. Ultrasound guided single injection caudal epidural anesthesia of isobaric bupivacaine with/without dexamethasone for geriatric patients undergoing total hip replacement surgery

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    H.A. El Gendy

    2014-07-01

    Conclusion: Adding dexamethasone with isobaric bupivacaine caudal anesthesia prolongs the duration of postoperative analgesia and decreased postoperative analgesic requirement in geriatric patients undergoing total hip replacement surgery in comparison isobaric bupivacaine alone.

  5. Use of liposomal bupivacaine in the postoperative management of posterior spinal decompression.

    Science.gov (United States)

    Grieff, Anthony N; Ghobrial, George M; Jallo, Jack

    2016-07-01

    OBJECTIVE The aim in this paper was to evaluate the efficacy of long-acting liposomal bupivacaine in comparison with bupivacaine hydrochloride for lowering postoperative analgesic usage in the management of posterior cervical and lumbar decompression and fusion. METHODS A retrospective cohort-matched chart review of 531 consecutive cases over 17 months (October 2013 to February 2015) for posterior cervical and lumbar spinal surgery procedures performed by a single surgeon (J.J.) was performed. Inclusion criteria for the analysis were limited to those patients who received posterior approach decompression and fusion for cervical or lumbar spondylolisthesis and/or stenosis. Patients from October 1, 2013, through December 31, 2013, received periincisional injections of bupivacaine hydrochloride, whereas after January 1, 2014, liposomal bupivacaine was solely administered to all patients undergoing posterior approach cervical and lumbar spinal surgery through the duration of treatment. Patients were separated into 2 groups for further analysis: posterior cervical and posterior lumbar spinal surgery. RESULTS One hundred sixteen patients were identified: 52 in the cervical cohort and 64 in the lumbar cohort. For both cervical and lumbar cases, patients who received bupivacaine hydrochloride required approximately twice the adjusted morphine milligram equivalent (MME) per day in comparison with the liposomal bupivacaine groups (5.7 vs 2.7 MME, p = 0.27 [cervical] and 17.3 vs 7.1 MME, p = 0.30 [lumbar]). The amounts of intravenous rescue analgesic requirements were greater for bupivacaine hydrochloride in comparison with liposomal bupivacaine in both the cervical (1.0 vs 0.39 MME, p = 0.31) and lumbar (1.0 vs 0.37 MME, p = 0.08) cohorts as well. None of these differences was found to be statistically significant. There were also no significant differences in lengths of stay, complication rates, or infection rates. A subgroup analysis of both cohorts of opiate-naive versus

  6. Effect of long-chain triglyceride lipid emulsion on bupivacaine-induced changes in electrophysiological parameters of rabbit Purkinje cells.

    Science.gov (United States)

    Lemoine, Sandrine; Rouet, René; Manrique, Alain; Hanouz, Jean-Luc

    2014-10-01

    Lipid emulsions are used in the reversal of local anesthetic toxicity. The aim of this study was to investigate the cellular electrophysiological effects of long-chain triglyceride lipid emulsion (LCTE) on cardiac action potential characteristics and conduction disturbances induced by bupivacaine. Purkinje fibers were dissected from the left ventricle of New Zealand white rabbit hearts and superfused with either Tyrode's solution during 30 min (control group), with bupivacaine 10(-6) M, 10(-5) M, and 5.10(-5) M alone, or in the presence of LCTE 0.5%, in addition, LCTE at 0.1%, 0.5%, and 1% was perfused alone. Electrophysiological parameters were recorded using the conventional microelectrode technique (37 °C, 1 Hz frequency). Bupivacaine 5.10(-5) M-induced conduction blocks (8/8 preparations): LCTE 0.5% suppressed the bupivacaine 5.10(-5) M-induced conduction blocks (1/8 preparations). Exposure to bupivacaine 10(-6) M, 10(-5) M, and 5.10(-5) M resulted in a significant decrease in the maximal rate of depolarization (Vmax) (respectively, 25%, 55%, 75%; P bupivacaine 10(-6) M did not significantly decreased Vmax (13%; P = 0.10 vs. control group). The decrease in Vmax resulting from bupivacaine 10(-5) M alone was significantly less in the presence of LCTE 0.5% (P bupivacaine 10(-5) M alone). Exposure to bupivacaine 10(-6) M, 10(-5) M, and 5.10(-5) M alone or in the presence of LCTE 0.5% resulted in a significant decrease in action potential duration measured at 50% and 90% repolarization (APD50 and APD90; P bupivacaine. Moreover, LCTE 0.5% attenuates the decrease in Vmax induced by bupivacaine 10(-6) M and 10(-5) M.

  7. Shenfu injection attenuates neurotoxicity of bupivacaine in cultured mouse spinal cord neurons

    Institute of Scientific and Technical Information of China (English)

    XIONG Li-ze; WANG Qiang; LIU Mu-yun; PENG Ye; LI Qing-bo; LU Zhi-hong; LEI Chong

    2007-01-01

    Background Our previous in vivo study in the rat demonstrates that Shenfu injection, a clinically used extract preparation from Chinese herbs, attenuates neural and cardiac toxicity induced by intravenous infusion of bupivacaine, a local anesthetic. This study was designed to investigate whether bupivacaine could induce a toxic effect in primary cultured mouse spinal cord neuron and if so, whether the Shenfu injection had a similar neuroprotective effect in the cell model. Methods The spinal cords from 11- to 14-day-old fetal mice were minced and incubated. Cytarabine was added into the medium to inhibit the proliferation of non-neuronal cells. The immunocytochemical staining of β-tubulin was used to determine the identity of cultured cells. The cultured neurons were randomly assigned into three sets treated with various doses of bupivacaine, Shenfu and bupivacaine+Shenfu, for 48 hours respectively. Cell viability in each group was analyzed by methyl thiazoleterazolium (MTT) assay. Results The viability of the cultured neurons treated with bupivacaine at concentrations of 0.01%, 0.02%, 0.04% and 0.08% was decreased in a dose-dependent manner. Although the Shenfu injection at concentrations ranging from 1/50 to 1/12.5 (V/V) had no significant influence on the viability of cultured neurons (P<0.05 vs control), the injection significantly increased the cellular viability of cultured neurons pretreated with 0.03% bupivacaine (P<0.05). Conclusion Although Shenfu injection itself has no effect on spinal neurons, it was able to reduce the bupivacaine induced neurotoxicity in vitro.

  8. Isobolographic analysis of the interaction between epidural sufentanil and bupivacaine in rats.

    Science.gov (United States)

    Vercauteren, M; Meert, T F

    1997-09-01

    The present study was performed to evaluate the nature of the interaction between epidurally administered sufentanil and bupivacaine in producing antinociception in rats. Rats in which epidural catheters had been inserted received epidural injections with bupivacaine and sufentanil. Nociception was tested by use of the tail-withdrawal reaction (TWR) test and the hot-plate test. Isobolographic analyses were performed with fixed and variable dose ratio treatment schedules based on the ED50s and the highest inactive concentrations of the compounds in both tests. In the TWR test, a synergistic interaction was obtained between the two compounds independent of whether a variable dose ratio regimen (with either 0.08 microgram/rat sufentanil or 80 micrograms/rat bupivacaine as the preset component) or a fixed dose ratio of 1/1,000 sufentanil/bupivacaine (based on the individual ED50s) was used. In the hot-plate test, a synergistic interaction was observed only in the variable dose ratio regimen with 0.08 microgram/rat sufentanil as the preset component and in the fixed dose ratio regimen of 1/1,000 sufentanil/bupivacaine (a ratio based on the ED50 values of the TWR test) but not with a ratio of 1/200, as demonstrated by the ED50s of both drugs in the hot-plate test. The interaction between epidurally administered bupivacaine and sufentanil seems to be synergistic for both tests when variable and fixed dose ratios are used. The synergism could be more easily demonstrated in the TWR test. For drugs with a segmental action, the hot-plate test seems to be less optimal. The necessity of a minimal critical amount of bupivacaine to obtain synergism may have clinical implications.

  9. Minimum effective local anesthetic dose of intrathecal hyperbaric ropivacaine and bupivacaine for cesarean section

    Institute of Scientific and Technical Information of China (English)

    GENG Zhi-yu; WANG Dong-xin; WU Xin-min

    2011-01-01

    Background Intrathecal anesthesia is commonly used for cesarean section. Bupivacaine and ropivacaine have all been used as intrathecal drugs. The minimum effective local anesthetic dose (MLAD) of intrathecal ropivacaine for nonobstetric patients has been reported. However, few data are available on the MLAD of hyperbaric ropivacine for obstetric patients and the relative potency to bupivacaine has not been fully determined. In this study, we sought to determine the MLAD of intrathecal ropivacaine and bupivacaine for elective cesarean section and to define their relative potency ratio.Methods We enrolled forty parturients undergoing elective cesarean section under combined spinal-epidural anesthesia and randomized them to one of two groups to receive intrathecal 0.5% hyperbaric ropivacaine or bupivacaine.The initial dose was 10 mg, and was increased in increments of 1 mg, using the technique of up-down sequential allocation. Efficacy was accepted if adequate sensory dermatomal anesthesia to pin prick to T7 or higher was attained within 20 minutes after intrathecal injection, and required no supplementary epidural injection for procedure until at least 50 minutes after the intrathecal injection.Results The intrathecal MLAD was 9.45 mg (95%confidence interval (CI), 8.45-10.56 mg) for ropivacaine and 7.53 mg (95%CI, 7.00-8.10 mg) for bupivacaine. The relative potency ratio was 0.80 (95% Cl, 0.74-0.85) for ropivacaine/bupivacaine when given intrathecally in cesarean section.Conclusion Ropivacaine is 20% less potent than bupivacaine during intrathecal anesthesia for cesarean delivery.

  10. Magnesium Versus Bupivacaine Infiltration in Controlling Postoperative Pain in Inguinal Hernia Repair

    Science.gov (United States)

    Razavi, Seyed Sajad; Peyvandi, Hasan; Badrkhani Jam, Ali Reza; Safari, Farhad; Teymourian, Houman; Mohajerani, Seyed Amir

    2015-01-01

    Background: Postoperative pain is one of the most common problems after hernia repair. Decrease in postoperative pain accelerates functional recovery, decreases duration of hospital stay and postoperative morbidity. Objectives: To compare postoperative analgesic effect of infiltration of magnesium versus bupivacaine into incision of inguinal hernia repair. Patients and Methods: In a double blind clinical trial, 80 patients’ candidates for elective inguinal hernia repair were enrolled. Right before closure of incision, in Bupivacaine group 5 mL Bupivacaine 0.5% added to 5 mL normal saline and in Magnesium group, 10 mL Magnesium sulfate 20% was infused subcutaneously. Pain score was measured using numeric rating score (NRS) at 1, 3, 6, 12 and 24 hours postoperatively. If NRS was above 3, 1 mg morphine was administered as rescue analgesic until patient felt comfortable or NRS < 3. Results: Postoperative pain scores at 1 and 3 hours were not significantly different between bupivacaine and magnesium groups (P = 0.21, 0.224; respectively). However, at 6 (P = 0.003), 12 (P = 0.028) and 24 (P = 0.022) hours postoperative, pain score (NRS) was significantly lower in bupivacaine group. Number of patients needed at least 1 dose of rescue morphine (P = 0.001), mean number of episodes asked for morphine during next 24 hours (P = 0.001) and total dose of morphine requirement (P = 0.01) were significantly lower in bupivacaine group. Conclusions: Magnesium infiltration did not decrease total dose and number of episodes needed for morphine rescue analgesic. Bupivacaine infiltration into surgical site was more effective than magnesium sulfate infiltration in postoperative pain control. PMID:26705525

  11. The role of hyaluronidase on lidocaine and bupivacaine pharmacokinetics after peribulbar blockade.

    Science.gov (United States)

    Nathan, N; Benrhaiem, M; Lotfi, H; Debord, J; Rigaud, G; Lachatre, G; Adenis, J P; Feiss, P

    1996-05-01

    Orbital regional anesthesia is the only circumstance where hyaluronidase is routinely added to local anesthetics to accelerate the onset of the block. The aim of this study was to compare the pharmacokinetics of lidocaine and bupivacaine with or without hyaluronidase for peribulbar blockade. Twenty-one patients scheduled for cataract surgery with lens implantation were included in this prospective randomized study. Peribulbar blocks were achieved with plain bupivacaine 0.5% (5.5 mL), lidocaine 2% (5.5 mL), and hyaluronidase (100 IU = 2 mL) (n = 10) ir sterile water (2 mL) (n = 11). Plasma bupivacaine and lidocaine concentrations were measured by high-performance liquid chromatography at regular intervals from the end of the local anesthetic injection until the 360th minute. Maximum plasma concentration (Cmax) and time to reach Cmax (Tmax) were obtained for all the patients except one who needed a supplementary injection and was excluded from the study. The time to onset and duration of the analgesia and akinesia were monitored at the times of sampling. Motor blockade was incomplete in two patients in each group without affecting surgery. The Tmax and absorption half-life (t1/2a) of lidocaine and bupivacaine were not different within each group (P > 0.05). The Tmax of lidocaine was shorter in the presence of hyaluronidase (17.1 +/- 2.6 min vs 32.7 +/- 6.0 min) as well as the Tmax of bupivacaine (16.8 +/- 3.0 min vs 26.5 +/- 4.4 min). The Cmax of lidocaine and bupivacaine were not modified by the addition of hyaluronidase. The clearance, terminal half-life, and volume of distribution were not different between groups. The absorption of lidocaine and bupivacaine from the peribulbar space are hastened by the addition of hyaluronidase. The Tmax of lidocaine is not different from that of bupivacaine within each group suggesting that the absorption of local anesthetics is minimally influenced by the liposolubility of the drugs. Moreover, hyaluronidase influences the

  12. The roles of acute and chronic pain in regression of sensory analgesia during continuous epidural bupivacaine infusion

    DEFF Research Database (Denmark)

    Mogensen, T; Scott, N B; Lund, Claus;

    1988-01-01

    -point scale) were assessed hourly for 16 hours during continuous epidural infusion of 0.5% plain bupivacaine (8 ml/hr) in 12 patients with chronic nonsurgical pain and in 30 patients after major abdominal surgery performed under combined bupivacaine and halothane--N2O general anesthesia. No opiates were given...

  13. Extracts from rabbit skin inflamed by the vaccinia virus attenuate bupivacaine-induced spinal neurotoxicity in pregnant rats

    Institute of Scientific and Technical Information of China (English)

    Rui Cui; Shiyuan Xu; Liang Wang; Hongyi Lei; Qingxiang Cai; Hongfei Zhang; Dongmei Wang

    2013-01-01

    Extracts from rabbit skin inflamed by the vaccinia virus can relieve pain and promote repair of nerve injury. The present study intraperitoneally injected extracts from rabbit skin inflamed by the vaccinia virus for 3 and 4 days prior to and following intrathecal injection of bupivacaine into pregnant rats. The pain threshold test after bupivacaine injection showed that the maximum possible effect of tail-flick latency peaked 1 day after intrathecal injection of bupivacaine in the extract-pretreatment group, and gradually decreased, while the maximum possible effect in the bupivacaine group continued to increase after intrathecal injection of bupivacaine. Histological observation showed that after 4 days of intrathecal injection of bupivacaine, the number of shrunken, vacuolated, apoptotic and caspase-9-positive cells in the dorsal root ganglion in the extract-pretreatment group was significantly reduced compared with the bupivacaine group. These findings indicate that extracts from rabbit skin inflamed by the vaccinia virus can attenuate neurotoxicity induced by intrathecal injection of bupivacaine in pregnant rats, possibly by inhibiting caspase-9 protein expression and suppressing nerve cell apoptosis.

  14. Efficacy of clonidine as an adjuvant to bupivacaine for caudal analgesia in children undergoing sub-umbilical surgery

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    Aruna Parameswari

    2010-01-01

    Full Text Available Caudal epidural analgesia with bupivacaine is very popular in paediatric anaesthesia for providing intra- and postoperative analgesia. Several adjuvants have been used to prolong the action of bupivacaine. We evaluated the efficacy of clonidine added to bupivacaine in prolonging the analgesia produced by caudal bupivacaine in children undergoing sub-umbilical surgery. One hundred children, age one to three years, undergoing sub-umbilical surgery, were prospectively randomized to one of two groups: caudal analgesia with 1 ml/kg of 0.25% bupivacaine in normal saline (Group A or caudal analgesia with 1 ml/kg of 0.25% bupivacaine with 1 μg/kg of clonidine in normal saline (Group B. Post-operative pain was assessed for 24 hours using the FLACC scale. The mean duration of analgesia was significantly longer in Group B (593.4 ± 423.3 min than in Group A (288.7 ± 259.1 min; P < 0.05. The pain score assessed using FLACC scale was compared between the two groups, and children in Group B had lower pain scores, which was statistically significant. The requirement of rescue medicine was lesser in Group B. Clonidine in a dose of 1 μg/kg added to 0.25% bupivacaine for caudal analgesia, during sub-umbilical surgeries, prolongs the duration of analgesia of bupivacaine, without any side effects.

  15. iTRAQ proteomics analysis reveals that PI3K is highly associated with bupivacaine-induced neurotoxicity pathways.

    Science.gov (United States)

    Zhao, Wei; Liu, Zhongjie; Yu, Xujiao; Lai, Luying; Li, Haobo; Liu, Zipeng; Li, Le; Jiang, Shan; Xia, Zhengyuan; Xu, Shi-yuan

    2016-02-01

    Bupivacaine, a commonly used local anesthetic, has potential neurotoxicity through diverse signaling pathways. However, the key mechanism of bupivacaine-induced neurotoxicity remains unclear. Cultured human SH-SY5Y neuroblastoma cells were treated (bupivacaine) or untreated (control) with bupivacaine for 24 h. Compared to the control group, bupivacaine significantly increased cyto-inhibition, cellular reactive oxygen species, DNA damage, mitochondrial injury, apoptosis (increased TUNEL-positive cells, cleaved caspase 3, and Bcl-2/Bax), and activated autophagy (enhanced LC3II/LC3I ratio). To explore changes in protein expression and intercommunication among the pathways involved in bupivacaine-induced neurotoxicity, an 8-plex iTRAQ proteomic technique and bioinformatics analysis were performed. Compared to the control group, 241 differentially expressed proteins were identified, of which, 145 were up-regulated and 96 were down-regulated. Bioinformatics analysis of the cross-talk between the significant proteins with altered expression in bupivacaine-induced neurotoxicity indicated that phosphatidyl-3-kinase (PI3K) was the most frequently targeted protein in each of the interactions. We further confirmed these results by determining the downstream targets of the identified signaling pathways (PI3K, Akt, FoxO1, Erk, and JNK). In conclusion, our study demonstrated that PI3K may play a central role in contacting and regulating the signaling pathways that contribute to bupivacaine-induced neurotoxicity.

  16. Effects of Ropivacaine and Bupivacaine on Rabbit Myocardial Energetic Metabolism and Mitochondria Oxidation

    Institute of Scientific and Technical Information of China (English)

    张诗海; 姚尚龙; 李晴

    2003-01-01

    Summary: To compare the cardiotoxicity induced by ropivacaine and bupivacaine and to investigatethe mechanism of cardiotoxicity, 24 mature New Zealand rabbits were divided randomly into controlgroup (group C), ropivacaine group (group R) and bupivacaine group (group B). Hearts were drawnout rapidly from the anesthetized animals and cardiac perfusion was performed immediately. Ropiva-caine 500 ng/ml (group R) or bupivacaine 500 ng/ml (group B) was added to the perfusion solution.Ventricular myocardial ATP, ADP and AMP were measured with high performance liquid chro-matogram. The ability of myocardial mitochondria oxidation to pyruvate or palmitoylcarnitine wasdetected with Clark electrode. Our results showed that myocardial ATP and ADP decreased signifi-cantly (P<0. 05) in group R and most significantly (P<0. 01) in group B as compared with groupC. Myocardial ATP and ADP decreased most significantly (P<0. 01) in group B as compared withgroup R. The changes of myocardial AMP revealed significant difference among three groups. Thechanges of pyruvate oxidation exibited no significant difference among the three groups. Palmitoyl-carnitine oxidation decreased markedly (P<0. 05) in group R and most significantly (P<0. 01) ingroup B as compared with group C. The present study indicated that the inhibition of lipid substrateoxidation may be responsible for the cardiotoxicity induced by bupivacaine and ropivacaine. The car-diotoxicity induced by ropivacaine is far more less than bupivacaine.

  17. Epidural blood flow and regression of sensory analgesia during continuous postoperative epidural infusion of bupivacaine

    DEFF Research Database (Denmark)

    Mogensen, T; Højgaard, L; Scott, N B;

    1988-01-01

    Epidural blood flow was measured in seven patients undergoing elective abdominal surgery during combined lumbar epidural and general anesthesia. After an initial dose of 20 ml plain bupivacaine 0.5%, a continuous epidural infusion of bupivacaine 0.5% (8 ml/hr) was given for 16 hours...... for postoperative pain relief. The epidural blood flow was measured by a local 133Xe clearance technique in which 15-35 MBq 133Xe diluted in 1 ml saline was injected through the epidural catheter on the day before surgery (no bupivacaine), 30 minutes after the initial dose of bupivacaine on the morning before...... surgery, and 8, 12, and 16 hours later during the continuous infusion. Initial blood flow was 6.0 +/- 0.7 ml/min per 100 g tissue (mean +/- SEM). After epidural bupivacaine, blood flow increased in all seven patients to 7.4 +/- 0.7 ml (P less than 0.02). Initial level of sensory analgesia was T4.5 +/- 0...

  18. Efficiency of levobupivacaine and bupivacaine for supraclavicular block: a randomized double-blind comparative study

    Directory of Open Access Journals (Sweden)

    Cenk Ilham

    2014-06-01

    Full Text Available Background and objectives: Success rate of catheter applications is low in supraclavicular block. Thus, bupivacaine and levobupivacaine become important with their long effect time in single injection practices. In this study, we aimed to compare the effectiveness, side effects and complications of bupivacaine and levobupivacaine in supraclavicular block. Methods: Sixty patients aged between 20 and 65, with body weight between 50 and 100 kg, in the ASA I-II-III group who were scheduled for hand, forearm and arm surgery using supraclavicular block were randomized into two groups of 30. The patients received 30 ml 0.5% bupivacaine (Group B or 30 ml 0.5% levobupivacaine (Group L. Motor and sensory blocks were evaluated. Motor and sensory block onset times, total block durations, postoperative pain, amount of postoperative analgesic used and patient satisfaction were recorded. Results: Demographic data, distribution of surgical area and hemodynamic data were similar between the two groups. Surgery, motor and sensory block durations of Group B and L patients did not vary statistically significantly. However, motor and sensory block onset times in Group B were significantly shorter than Group L (p 0.05. Conclusion: 30 ml 0.5% bupivacaine and levobupivacaine provide similar block characteristics for supraclavicular block. Bupivacaine leads to faster motor and sensory block onset compared to levobupivacaine however similar duration of postoperative analgesia.

  19. COMPARISON OF EFFICACY OF BUTORPHANOL AND FENTANYL AS INTRATHECAL ADJUVANT TO BUPIVACAINE

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    Gopal Reddy

    2015-04-01

    Full Text Available OBJECTIVE: The objective of the study was to compare the efficacy of butorphanol and Fentanyl as an adjuvant to local anaesthetics in relation to onset, degree and recovery time of sensory and motor blockade in orthopaedi c procedures done under spinal anaesthesia. METHODS: In a Randomized double blind study, 90 cases of ASA grade 1 & 2 between the ages of 18 - 60yrs of either sex undergoing elective lower limb orthopaedic procedures were allocated into three groups of 30 each. Group A received intrathecal 0.5% hyperbaric bupivacaine 3ml with 0.2 ml of normal saline (n=30. Group B received intrathecal 0.5% hyperbaric bupivacaine 3ml with Butorphanol 200microgram. (n=30 Group C received intrathecal 0.5% hyperbaric bupivaca ine 3ml with fentanyl 20microgram. (n=30.Vital parameters, onset, level, duration and regression of sensory & motor block, duration of effective analgesia were recorded and compared. Analysis was done by of variance (ANOVA test. RESULTS: Intrathecal admi nistration of Bupivacaine + Butorphanol (141.6±7.2 min Bupivacaine + Fentanyl (124.5±7.1min prolongs 2 segment regression times compared to Bupivacaine with Normal saline (118.3±12.5min without altering the duration of motor blockade. Duration of effect ive analgesia was 191.8±19,272.8±17.2 min and 270.0±27.4 min in Group A, Group B and Group C respectively. Post - operative side effects were comparable in all the three groups. CONCLUSION: Both fentanyl and butorphanol given intrathecally along with hyperba ric Bupivacaine prolong the d uration of effective analgesia.

  20. Downregulation of miR-210 protected bupivacaine-induced neurotoxicity in dorsal root ganglion.

    Science.gov (United States)

    Wang, Yiheng; Ni, Hongxia; Zhang, Wenrui; Wang, Xiu; Zhang, Haishan

    2016-04-01

    Local anesthetic may cause neurotoxicity in developing neurons. In this study, we examined the molecular mechanisms of microRNA-210 (miR-210) in regulating bupivacaine-induced dorsal root ganglia (DRG) neurotoxicity in vitro. Young mouse (P30) DRG explants were cultured in vitro and treated with 5 mM bupivacaine to induce neurotoxicity. QRT-PCR was used to evaluate the expression profiles of miRNAs within 24 h after bupivacaine treatment. MiR-210 was downregulated in DRG, and its effects on bupivacaine-induced neurotoxicity were evaluated by apoptosis and neurite growth assays, respectively. Putative downstream target of miR-210 in DRG, BDNF, was evaluated by dual-luciferase assay, qRT-PCR, and western blot, respectively. BDNF was then knocked down by siRNA to assess its associated effects in regulating DRG neurotoxicity. Within the initial 24 h after bupivacaine treatment, various patterns of miRNA expression were observed, whereas miR-210 was constantly upregulated. Application of miR-210 inhibitor efficiently downregulated endogenous miR-210, protected apoptosis and neurite retraction in bupivacaine damaged DRG neurons. Using dual-luciferase assay, qRT-PCR, and western blot, BDNF was confirmed to the downstream target of miR-210 in DRG. SiRNA-mediated BDNF downregulation reversed the effect of miR-210 downregulation in DRG neurotoxicity. MiR-210, through the regulation of BDNF, plays important role in anesthetics-induced DRG neurotoxicity.

  1. The effect of age on systemic absorption and systemic disposition of bupivacaine after subarachnoid administration

    Energy Technology Data Exchange (ETDEWEB)

    Veering, B.T.; Burm, A.G.; Vletter, A.A.; van den Hoeven, R.A.; Spierdijk, J. (Leiden Univ. Hospital (Netherlands))

    1991-02-01

    In order to evaluate the role of the pharmacokinetics of the age-related changes in the clinical profile of spinal anesthesia with bupivacaine, we studied the influence of age on the systemic absorption and systemic disposition of bupivacaine after subarachnoid administration in 20 male patients (22-81 yr), ASA Physical Status 1 or 2, by a stable isotope method. After subarachnoid administration of 3 ml 0.5% bupivacaine in 8% glucose, a deuterium-labeled analog (13.4 mg) was administered intravenously. Blood samples were collected for 24 h. Plasma concentrations of unlabeled and deuterium-labeled bupivacaine were determined with a combination of gas chromatography and mass fragmentography. Biexponential functions were fitted to the plasma concentration-time data of the deuterium-labeled bupivacaine. The systemic absorption was evaluated by means of deconvolution. Mono- and biexponential functions were fitted to the data of fraction absorbed versus time. The maximal height of analgesia and the duration of analgesia at T12 increased with age (r = 0.715, P less than 0.001; r = 0.640, P less than 0.01, respectively). In 18 patients the systemic absorption of bupivacaine was best described by a biexponential equation. The half-life of the slow systemic absorption process (r = -0.478; P less than 0.05) and the mean absorption time (r = -0.551; P less than 0.02) decreased with age. The total plasma clearance decreased with age (r = -0.650, P less than 0.002), whereas the mean residence time and terminal half-life increased with age (r = 0.597, P less than 0.01; r = 0.503, P less than 0.05).

  2. "COMPARATIVE STUDY OF ONSET AND DURATION OF ACTION OF 0.5% BUPIVACAINE AND A MIXTURE OF 0.5% BUPIVACAINE AND 2% LIDOCAINE FOR EPIDURAL ANESTHESIA"

    Directory of Open Access Journals (Sweden)

    F. Z

    2004-09-01

    Full Text Available Local anesthetic solutions are frequently mixed to take advantage of the useful properties of each drug but the medical literature is surprisingly deficient in well controlled studies about the onset and duration of action of these mixtures for epidural anesthesia. A total of 32 patients scheduled for elective operation were enrolled in this prospective randomized controlled study; in group I, 16 patients received 15 ml solution containing bupivacaine 0.5% and lidocaine 2% as a single injection epidural anesthesia after 3 ml test dose containing 15 mcg epinephrine; in group II, 16 patients received 15 ml bupivacaine 0.5% with the same technique. The times from injection of the test dose to the onset of sensory anesthesia at inguinal ligament and umbilicus and the time of termination of anesthesia at the maximum sensory level and two levels regression of anesthesia level were checked with pinprick test. The results were compared with two sample t test. Times to onset of sensory block in L1 and T10 levels (mean±SD were 14.87±3.1 min and 21±3.37 min in group I and 17.12±2.18 min and 24.9±2.54 min in group II, respectively (P< 0.025 and P< 0.001, respectively. Times to termination of sensory anesthesia at the maximum level of anesthesia and two dermatomes regression were 75.12±8.26 min and 87.8±7.01 min in group I and 116.37±22.4 min and 134.87±21.64 min in group II, respectively ( P= 0 and P=0,respectively. Mixing lidocaine 2% with bupivacaine 0.5% in a 1:1 ratio compared to 0.5% bupivacaine solution results in significantly more rapid initiation and termination of sensory block.

  3. The Effect of Local Injections of Bupivacaine Plus Ketamine, Bupivacaine Alone, and Placebo on Reducing Postoperative Anal Fistula Pain: A Randomized Clinical Trial

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    Alireza Kazemeini

    2014-01-01

    Full Text Available Background and Objective. This study aimed to compare the effects of different local anesthetic solutions on postoperative pain of anal surgery in adult patients. Method. In this randomized double-blind prospective clinical trial, 60 adult patients (18 to 60 years old with physical status class I and class II that had been brought to a university hospital operating room for fistula anal surgery with spinal anesthesia were selected. Patients were randomly divided into 4 equal groups according to table of random numbers (created by Random Allocation Software 1. Group 1 received 3 mL of normal saline, group 2, 1 mL of normal saline plus 2 mL of bupivacaine 0.5%, group 3, 1 mL of ketamine plus 2 mL of bupivacaine 0.5%, and group 4, no infiltration. Intensity of pain in patients was measured using visual analogue scale (VAS at 0 (transfer to ward, 2, 6, 12, and 24 hours after surgery. Time interval to administration of drugs and overall dose of drugs were measured in 4 groups. Results. Mean level of pain was the lowest in group 3 at all occasions with a significant difference, followed by groups 2, 4, and lastly 1 (P<0.001. Furthermore, groups 2 and 3 compared to groups 1 and 4 had the least overall dose of analgesics and requested them the latest, with a significant difference (P<0.05. Conclusion. Local anesthesia (1 mL of ketamine plus 2 mL of bupivacaine 0.5% or 1 mL of normal saline plus 2 mL of bupivacaine 0.5% combined with spinal anesthesia reduces postoperative pain and leads to greater comfort in recovering patients.

  4. A STUDY OF HYPERBARIC BUPIVACAINE VERSUS ISOBARIC ROPIVACAINE FOR ELECTIVE CAESAREAN DELIVERIES

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    Radha Ramana

    2016-05-01

    Full Text Available OBJECTIVE Is to compare the anaesthetic effects of intrathecal administration of hyperbaric Bupivacaine 10 mg with isobaric Ropivacaine 15 mg for elective caesarean delivery. METHOD 100 parturients of ASA 1 and II posted for elective caesarean delivery were randomly divided into 2 groups of 50 each: Group A received intrathecal 0.5% Hyperbaric Bupivacaine 10 mg and Group B received intrathecal 0.75% isobaric Ropivacaine 15 mg. Time of onset and regression of sensory and motor blocks, haemodynamics, time of first complaint of pain, neonatal APGAR and side-effects were evaluated. RESULTS Ropivacaine group has significantly slower onset of sensory analgesia at T6 (4.45±0.03 in Ropivacaine group as against 2.38±0.36 in Bupivacaine group, p 0.05. There was no difference in the haemodynamics and neonatal APGAR. Neither of the groups had any significant intraoperative or postoperative complications. CONCLUSION Intrathecal Isobaric Ropivacaine 15 mg provides effective spinal anaesthesia for caesarean delivery. It has slower onset, shorter motor block, early sensory regression and similar postoperative analgesia and APGAR scores as compared to 10 mg of 0.5% hyperbaric bupivacaine. The shorter duration of motor block can facilitate early ambulation and makes Ropivacaine a good alternative for elective caesarean deliveries.

  5. Dexamethasone prolongs local analgesia after subcutaneous infiltration of bupivacaine microcapsules in human volunteers

    DEFF Research Database (Denmark)

    Holte, Kathrine; Werner, Mads U; Lacouture, Peter G;

    2002-01-01

    BACKGROUND: The addition of small amounts of dexamethasone to extended-release formulations of bupivacaine in microcapsules has been found to prolong local analgesia in experimental studies, but no clinical data are available. METHODS: In a double-blinded study, 12 healthy male volunteers were ra...

  6. Unpredictability of regression of analgesia during the continuous postoperative extradural infusion of bupivacaine

    DEFF Research Database (Denmark)

    Mogensen, T; Hjortsø, N C; Bigler, D;

    1988-01-01

    Twenty-four otherwise healthy patients scheduled for elective major abdominal surgery received general anaesthesia plus lumbar extradural analgesia. A loading dose of 0.5% plain bupivacaine was given to produce sensory analgesia (pin prick) from T4 to S5 and followed by a continuous infusion of 0...

  7. A comparative study of magnesium sulfate vs dexmedetomidine as an adjunct to epidural bupivacaine

    Science.gov (United States)

    Shahi, Vaibhav; Verma, Anil Kumar; Agarwal, Apurva; Singh, Chandra Shekhar

    2014-01-01

    Background and Aims: This prospective, randomized, double-blind study was undertaken to establish the effect of addition of magnesium or dexmedetomidine, as an adjuvant, to epidural bupivacaine in lower limb surgeries. Materials and Methods: One hundred and twenty ASA (American Society of Anesthesiologists) class I and II patients undergoing lower limb surgeries were enrolled to receive either magnesium sulfate (Group M) or dexmedetomidine (Group D) along with epidural bupivacaine for surgical anesthesia. All the study subjects received an epidural anesthesia with 14 ml of 0.5% bupivacaine along with either MgSO4 50 mg (Group M) or dexmedetomidine 0.5 μg/kg (Group D) or saline (Group C). The onset of motor and sensory block, duration of block, hemodynamic parameters, and any adverse events were monitored. Results: Analgesia in the postoperative period was better in Group D, duration of sensory and motor blockade was significantly prolonged in Group D and incidence of sedation was more in Group D. Conclusion: Hence, addition of dexemedetomidine to epidural bupivacaine can be advantageous with respect to increased duration of motor and sensory blockade and arousable sedation. PMID:25425781

  8. Evaluation of the effect of magnesium sulphate vs. clonidine as adjunct to epidural bupivacaine

    Directory of Open Access Journals (Sweden)

    Tanmoy Ghatak

    2010-01-01

    Full Text Available For treatment of intra and postoperative pain, no drug has yet been identified that specifically inhibits nociception without associated side effects. Magnesium has antinociceptive effects in animal and human models of pain. The current prospective randomised double-blind study was undertaken to establish the effect of addition of magnesium or clonidine, as adjuvant, to epidural bupivacaine in lower abdominal and lower limb surgeries. A total of 90 American Society of Anesthesiology (ASA grade I and II patients undergoing lower abdominal and lower limb surgeries were enrolled to receive either magnesium sulphate (Group B or clonidine (Group C along with epidural bupivacaine for surgical anaesthesia. All patients received 19 ml of epidural bupivacaine 0.5% along with 50 mg magnesium in group B, 150 mcg clonidine in Group C, whereas in control group (Group A, patients received same volume of normal saline. Onset time, heart rate, blood pressure, duration of analgesia, pain assessment by visual analogue score (VAS and adverse effects were recorded. Onset of anaesthesia was rapid in magnesium group (Group B. In group C there was prolongation of duration of anaesthesia and sedation with lower VAS score, but the incidence of shivering was higher. The groups were similar with respect to haemodynamic variables, nausea and vomiting. The current study establishes magnesium sulphate as a predictable and safe adjunct to epidural bupivacaine for rapid onset of anaesthesia and clonidine for prolonged duration of anaesthesia with sedation.

  9. Wound infiltration with ropivacaine and bupivacaine for pain after inguinal herniotomy

    DEFF Research Database (Denmark)

    Erichsen, C J; Vibits, H; Dahl, J B;

    1995-01-01

    and movement on a visual analogue scale (VAS) and by means of pressure algometry. No differences between pain intensities or wound tenderness were found between the groups. The demand for analgesics was similar in the two groups. We conclude that incisional ropivacaine is as effective as bupivacaine...

  10. BUPIVACAINE INFILTRATION VERSUS DICLOFENAC SUPPOSITORY FOR POST-TONSILLECTOMY PAIN RELIEF IN PAEDIATRIC PATIENTS

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    Nayna S Solanki

    2012-02-01

    Full Text Available Background: Pain management after tonsillectomy in children remains a dilemma for anaesthesiologist. The study was designed to compare the effect of pre-incisional infiltration of Bupivacaine (0.25% versus Diclofenac suppository on postoperative pain relief in children. Methodology: Fifty patients of American Society of Anaesthesiology grade – I, aged between 1 and 15 years undergoing elective tonsillectomy were selected. They were randomly divided equally into group A and B. Five minutes before incision, peritonsillar fossa were infiltrated with 5 ml Bupivacaine(0.25% in group A patients. Group B received Diclofenac suppository 2mg/kg after induction. Intra operatively all patients were observed for vital parameters. Post-operatively all the patients were observed for 24 hours for analgesia using observer pain scale, analgesic requirement, vital data and other complications. Result: Diclofenac suppository is a better option for post-operative analgesia in paediatric patients undergoing tonsillectomy as compared to bupivacaine infiltration as there were significant difference in pain score (P<0.05 after two hours onwards post operatively. Complications like bradycardia, hypotension, allergic reaction and convulsion were not found in either group. Conclusion: Diclofenac suppository is a better option as compared to pre-incisional bupivacaine infiltration because of its convenience and duration of analgesia. [National J of Med Res 2012; 2(1.000: 5-7

  11. Orthostatic hypotension during postoperative continuous thoracic epidural bupivacaine-morphine in patients undergoing abdominal surgery

    DEFF Research Database (Denmark)

    Crawford, M E; Møiniche, S; Orbæk, Janne;

    1996-01-01

    Fifty patients undergoing colonic surgery received combined thoracic epidural and general anesthesia followed by continuous epidural bupivacaine 0.25% and morphine 0.05 mg/mL, 4 mL/h, for 96 h postoperatively plus oral tenoxicam 20 mg daily. Heart rate (HR) and arterial blood pressure (BP) were...

  12. Effect of epidural 0.25% bupivacaine on somatosensory evoked potentials to dermatomal stimulation

    DEFF Research Database (Denmark)

    Lund, C; Hansen, O B; Kehlet, H

    1989-01-01

    The effect of lumbar epidural analgesia with similar volumes (about 25 ml) of 0.25% and 0.5% bupivacaine on early (less than 0.5 seconds) somatosensory evoked potentials (SEPs) to electrical stimulation of the S1, L1, and T10 dermatomes was examined in two groups of ten patients. Level of sensory...

  13. Hyperbaric spinal ropivacaine in lower limb and hip surgery: A comparison with hyperbaric bupivacaine

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    Feroz Ahmad Dar

    2015-01-01

    Conclusion: We conclude that hyperbaric bupivacaine used intrathecally has a faster onset of sensory block and prolonged duration of analgesia compared to hyperbaric ropivacaine group. A more rapid postoperative recovery of sensory and motor function was seen in Group R compared with Group B. However, side effects observed were more in Group B.

  14. Bupivacaine Lozenge Compared with Lidocaine Spray as Topical Pharyngeal Anesthetic before Unsedated Upper Gastrointestinal Endoscopy

    DEFF Research Database (Denmark)

    Salale, Nesrin; Treldal, Charlotte; Mogensen, Stine;

    2014-01-01

    Unsedated upper gastrointestinal endoscopy (UGE) can induce patient discomfort, mainly due to a strong gag reflex. The aim was to assess the effect of a bupivacaine lozenge as topical pharyngeal anesthetic compared with standard treatment with a lidocaine spray before UGE. Ninety-nine adult...... with a lidocaine spray proved to be a superior option as topical pharyngeal anesthetic before an UGE....

  15. NERVE BLOCKING (PAIN CONTROL AFTER THORACOTOMY WITH BUPIVACAINE:EPIDURAL VS INTERCOSTAL

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    A GHAFOURI

    2001-09-01

    Full Text Available Introduction. Use of analgesics is an evitable and necessary part of thoracic surgery. This study was designed to compare analgesic effects of persistent thoracic epidural anesthesia versus persistent intercostal nerve block and determine their role in opioid need after thoracotomy. Methods. 116 patients above 20 years old who were candidate for thoracotomy through either posterolateral or thoracoabdominal incision were situatedin one of three group for pain relief. For the first group, pain relieved by petidine and pentazosin. In 2nd group, pain relived by thoracic epidural anesthesia with bupivacaine catheters which were inserted between costal and plural space. In 3rd group, bupivacaine was introduced through 3rd and 4th intercostal space by catheter (2 mg/kg in devided doses. Pain was meseared by visual analogue scale and quantified by surgical residents through a method bupivacaine was injected. If Bupivacaine did not relieve pain, then opioid was used as adjuvant. Results. The study showed that epidural group needed less opioids and had more cooperation in comparison with two other group. The intercostal group complained of pain at chest tube site. Discussion. In thoracotomized patients, pain control is more effective via epidural anesthesia in turns of opioid side effects, expenses and patient comfort.

  16. Post-operative pain relief in children following caudal bupivacaine and buprenorphine--a comparative study.

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    Anilkumar T

    1994-04-01

    Full Text Available Eighty-five paediatric patients (age range: 6 mths-12yrs undergoing lower abdominal surgery were studied for post-operative pain relief following either caudal bupivacaine (GpI: n = 43 or buprenorphine (GpII: n = 42. Bupivacaine was administered as 0.5ml/kg body weight of 0.25% solution and buprenorphine as 4 micrograms/ml and volume of 0.5 ml/Kg body weight in normal saline. Post-operatively pain was graded on a 4-point scale and behaviour on a 5-point scale. Any post-operative complications and need for additional analgesia were also noted. Bupivacaine provided good pain relief in the early post-operative hours but buprenorphine provided pain relief lasting for 24 hrs or more post-operatively. Post-operative behaviour of 10 patients receiving buprenorphine was graded as cheerful as compared to 2 from bupivacaine group. Till the end of observation period (i.e. 8 hr post-operatively, majority of patients receiving buprenorphine remained cheerful.

  17. Comparison of Hyperbaric Levobupivacaine with Hyperbaric Bupivacaine in Unilateral Inguinal Hernia Operations Performed Under Spinal Anesthesia

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    Orhan Gozaydin

    2014-02-01

    Conclusions: Hyperbaric levobupivacaine was found to have similar effects to hyperbaric bupivakain for anesthetic effects, hemodynamic parameters, postoperative analgesic necessity time, and the first 24-hour side effects and complications. Levobupivacaine, having a lesser cardiovascular and central nervous system, was suggested as an alternative to bupivacaine. [Arch Clin Exp Surg 2014; 3(1.000: 1-9

  18. The analgesic efficacy of continuous presternal bupivacaine infusion through a single catheter after cardiac surgery

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    Dalia Abdelhamid Nasr

    2015-01-01

    Full Text Available Background: Median sternotomy, sternal spreading, and sternal wiring are the main causes of pain during the early recovery phase following cardiac surgery. Aim: This study was designed to evaluate the analgesic efficacy of continuous presternal bupivacaine infusion through a single catheter after parasternal block following cardiac surgery. Materials and Methods: The total of 40 patients (American Society of Anesthesiologist status II, III, 45-60 years old, undergoing coronary - artery bypass grafting were enrolled in this prospective, randomized, double-blind study. A presternal catheter was inserted with continuous infusion of 5 mL/h bupivacaine 0.25% (Group B or normal saline (Group C during the first 48 postoperative hrs. Primary outcomes were postoperative morphine requirements and pain scores, secondary outcomes were extubation time, postoperative respiratory parameters, incidence of wound infection, Intensive Care Unit (ICU and hospital stay duration, and bupivacaine level in blood. Statistical Methods: Student′s t-test was used to analyze the parametric data and Chi-square test for categorical variables. Results: During the postoperative 48 h, there was marked reduction in morphine requirements in Group B compared to Group C, (8.6 ± 0.94 mg vs. 18.83 ± 3.4 mg respectively, P = 0.2, lower postoperative pain scores, shorter extubation time (117 ± 10 min vs. 195 ± 19 min, respectively, P = 0.03, better respiratory parameters (PaO 2 /FiO 2, PaCO 2 and pH, with no incidence of wound infection, no differences in ICU or hospital stay duration. The plasma concentration of bupivacaine remained below the toxic threshold (at T24, 1.2 ug/ml ± 0.3 and T48 h 1.7 ± 0.3 ug/ml. Conclusion: Continuous presternal bupivacaine infusion has resulted in better postoperative analgesia, reduction in morphine requirements, shorter time to extubation, and better postoperative respiratory parameters than the control group.

  19. COMPARISON OF DEXMEDETOMIDINE, BUPRENORPHINE AND FENTANYL AS AN ADJUVANT TO BUPIVACAINE DURING SPINAL ANAESTHESIA FOR HEMIARTHROPLASTY

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    Pradeep R

    2016-10-01

    Full Text Available BACKGROUND Opioids such as fentanyl or buprenorphine are being added as adjuvant to local anaesthetic for spinal anaesthesia. Dexmedetomidine, a new α2 agonist is being tried as an adjuvant in the recent times. MATERIALS AND METHODS The patients were randomised into three Groups (n=30 each by closed envelope technique. Patients in Group 1 received 10 µg fentanyl with 15 mg of 0.5% hyperbaric bupivacaine, Group 2 received 15 mg of 0.5% hyperbaric bupivacaine supplemented with 30 µg of buprenorphine and Group 3 received 15 mg of 0.5% hyperbaric bupivacaine plus 5 µg dexmedetomidine intrathecally. The time to reach maximum sensory and motor level, the regression time of the same, any adverse effects were recorded. Data were analysed using chi-square test or Fisher’s exact test for categorical data and analysis of variance for continuous data. A value of P<0.05 was accepted as statistically significant. Settings and Design- The study was conducted in a prospective, randomised and double-blind manner. It included ninety American Society of Anaesthesiologists class I and II patients undergoing hemiarthroplasty under spinal anaesthesia. RESULTS In this study, the patients in dexmedetomidine group showed significantly longer duration of motor block (240±20 mins. and sensory blockade (180±22.2 mins. compared to other groups, which is statistically significant (P=0.0001 and P=0.006, respectively. The time to first request of analgesic postoperatively was also longer (260±30.2 in dexmedetomidine group when compared with other groups (P=0.0001. Haemodynamic parameters were stable and there were no complications in any group. CONCLUSIONS We concluded that intrathecal dexmedetomidine (5 µg with bupivacaine provides significantly longer duration of sensory and motor blockade and longer duration for first request of analgesia in the recovery than intrathecal buprenorphine (30 µg or fentanyl (10 µg with bupivacaine for spinal anaesthesia for

  20. Cold bupivacaine versus magnesium sulfate added to room temperature bupivacaine in sonar-guided femoral and sciatic nerve block in arthroscopic anterior cruciate ligament reconstruction surgery

    Science.gov (United States)

    Alzeftawy, Ashraf Elsayed; El-Daba, Ahmad Ali

    2016-01-01

    Background: Cooling of local anesthetic potentiates its action and increases its duration. Magnesium sulfate (MgSo4) added to local anesthetic prolongs the duration of anesthesia and postoperative analgesia with minimal side effects. Aim: The aim of this prospective, randomized, double-blind study was to compare the effect of cold to 4°C bupivacaine 0.5% and Mg added to normal temperature (20–25°C) bupivacaine 0.5% during sonar-guided combined femoral and sciatic nerve blocks on the onset of sensory and motor block, intraoperative anesthesia, duration of sensory and motor block, and postoperative analgesia in arthroscopic anterior cruciate ligament (ACL) reconstruction surgery. Patients and Methods: A total of 90 American Society of Anesthesiologists classes I and II patients who were scheduled to undergo elective ACL reconstruction were enrolled in the study. The patients were randomly allocated to 3 equal groups to receive sonar-guided femoral and sciatic nerve blocks. In Group I, 17 ml of room temperature (20–25°C) 0.5% bupivacaine and 3 ml of room temperature saline were injected for each nerve block whereas in Group II, 17 ml of cold (4°C) 0.5% bupivacaine and 3 ml of cold saline were injected for each nerve block. In Group III, 17 ml of room temperature 0.5% bupivacaine and 3 ml of MgSo4 5% were injected for each nerve block. The onset of sensory and motor block was evaluated every 3 min for 30 min. Surgery was started after complete sensory and motor block were achieved. Intraoperatively, the patients were evaluated for heart rate and mean arterial pressure, rescue analgesic and sedative requirements plus patient and surgeon satisfaction. Postoperatively, hemodynamics, duration of analgesia, resolution of motor block, time to first analgesic, total analgesic consumption, and the incidence of side effects were recorded. Results: There was no statistically significant difference in demographic data, mean arterial pressure, heart rate, and duration of

  1. The roles of acute and chronic pain in regression of sensory analgesia during continuous epidural bupivacaine infusion

    DEFF Research Database (Denmark)

    Mogensen, T; Scott, N B; Lund, Claus;

    1988-01-01

    The purpose of this study was to investigate whether regression of sensory analgesia during constant epidural bupivacaine infusion was different in postoperative patients with acute pain than in patients with chronic nonsurgical pain. Sensory levels of analgesia (to pinprick) and pain (on a five......-point scale) were assessed hourly for 16 hours during continuous epidural infusion of 0.5% plain bupivacaine (8 ml/hr) in 12 patients with chronic nonsurgical pain and in 30 patients after major abdominal surgery performed under combined bupivacaine and halothane--N2O general anesthesia. No opiates were given.......01). Mean duration of sensory blockade was significantly longer (P less than 0.005) in the patients with chronic pain than in surgical patients (13.1 +/- 1.2 and 8.5 +/- 0.7 hours, respectively). Thus, surgical injury hastens regression of sensory analgesia during continuous epidural bupivacaine infusion...

  2. A randomized controlled double-blinded prospective study of the efficacy of clonidine added to bupivacaine as compared with bupivacaine alone used in supraclavicular brachial plexus block for upper limb surgeries

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    Shivinder Singh

    2010-01-01

    Full Text Available We compared the effects of clonidine added to bupivacaine with bupivacaine alone on supraclavicular brachial plexus block and observed the side-effects of both the groups. In this prospective, randomized,double-blinded, controlled trial, two groups of 25 patients each were investigated using (i 40 ml of bupivacaine 0.25% plus 0.150 mg of clonidine and (ii 40 ml of bupivacaine 0.25% plus 1 ml of NaCl 0.9, respectively. The onset of motor and sensory block and duration of sensory block were recorded along with monitoring of heart rate, non-invasive blood pressure, oxygen saturation and sedation. It was observed that addition of clonidine to bupivacaine resulted in faster onset of sensory block, longer duration of analgesia (as assessed by visual analogue score, prolongation of the motor block (as assessed by modified Lovett Rating Scale, prolongation of the duration of recovery of sensation and no association with any haemodynamic changes (heart rate and blood pressure, sedation or any other adverse effects. These findings suggest that clonidine added to bupivacaine is an attractive option for improving the quality and duration of supraclavicular brachial plexus block in upper limb surgeries.

  3. Effects of labor analgesia on maternal and neonatal outcome by epidural low concentration of bupivacaine combined with anisodamine

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    Objective To observe the effects of labor analgesia on maternal and neonatal outcome by epidural application of 0.125% bupivacaine combined with anisodamine on the labor stage, and modes of delivery and neonatal Apgar's score. Methods A total of 220 primiparaes with full-term pregnancy, monocyesis and fetal head presentation without any obstetrical or systematic complications were chosen and divided into analgesic group and control group (110 in each group). The mixture of bupivacaine and anisodamine was in...

  4. Protective effects of bupivacaine against kainic acid-induced seizure and neuronal cell death in the rat hippocampus.

    Science.gov (United States)

    Chiu, Kuan Ming; Wu, Chia Chan; Wang, Ming Jiuh; Lee, Ming Yi; Wang, Su Jane

    2015-01-01

    The excessive release of glutamate is a critical element in the neuropathology of epilepsy, and bupivacaine, a local anesthetic agent, has been shown to inhibit the release of glutamate in rat cerebrocortical nerve terminals. This study investigated whether bupivacaine produces antiseizure and antiexcitotoxic effects using a kainic acid (KA) rat model, an animal model used for temporal lobe epilepsy, and excitotoxic neurodegeneration experiments. The results showed that administering bupivacaine (0.4 mg/kg or 2 mg/kg) intraperitoneally to rats 30 min before intraperitoneal injection of KA (15 mg/kg) increased seizure latency and reduced the seizure score. In addition, bupivacaine attenuated KA-induced hippocampal neuronal cell death, and this protective effect was accompanied by the inhibition of microglial activation and production of proinflammatory cytokines such as interleukin (IL)-1β, IL-6, and tumor necrosis factor-α in the hippocampus. Moreover, bupivacaine shortened the latency of escaping onto the platform in the Morris water maze learning performance test. Collectively, these data suggest that bupivacaine has therapeutic potential for treating epilepsy.

  5. Comparison of 0.5% Bupivacaine and 0.5% Ropivacaine epidurally in lower limb orthopaedic surgeries

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    Ushma D. Shah

    2017-01-01

    Full Text Available Background: Ropivacaine in equi-potent concentrations with bupivacaine, the degree of motor blockade is less pronounced with ropivacaine, and there is a greater propensity for blocking pain transmitting A-delta and C fibres rather than A-α motor fibres. It appears to have most of the blocking characteristics of bupivacaine. So we have undertaken the study to compare ropivacaine 0.5% (20ml and bupivacaine 0.5% (20ml for epidural anaesthesia in patients undergoing lower limb orthopaedic surgeries. Methods: This double-blind, randomized study involves 60 patients who were undergone orthopaedic surgery, having ASA-I or ASA-II physical status. Out of 60, 30 patients received 20 ml of 0.5% ropivacaine and 30 patients received 20 ml of 0.5% bupivacaine at the L3, 4 interspace. Parameters measured were the onset time, duration and spread of sensory block, the onset time, peak time, duration and degree of motor block, the quality of anaesthesia and the heart rate and blood pressure profile during block onset. Results: Epidurally, Ropivacaine in comparison to Bupivacaine provides quicker onset, early peak effect and prolonged duration of sensory block and shorter duration of motor block. Ropivacaine provides prolonged effective analgesia. It reduces requirement of rescue analgesics and related side effects. Conclusions: Ropivacaine 0.5% is safer and effective alternative to Bupivacaine in epidural anaesthesia and post operative pain relief.

  6. Bupivacaine 0.5 % versus articaine 4 % for the removal of lower third molars. A crossover randomized controlled trial

    Science.gov (United States)

    Sancho-Puchades, Manuel; Vílchez-Pérez, Miguel A.; Paredes-García, Jordi; Berini-Aytés, Leonardo; Gay-Escoda, Cosme

    2012-01-01

    Objective: To compare the anesthetic action of 0.5% bupivacaine in relation to 4% articaine, both with 1:200,000 epinephrine, in the surgical removal of lower third molars. As a secondary objective hemodynamic changes using both anesthetics were analyzed. Study Design: Triple-blind crossover randomized clinical trial. Eighteen patients underwent bilateral removal of impacted lower third molars using 0.5% bupivacaine or 4% articaine in two different appointments. Preoperative, intraoperative and postoperative variables were recorded. Differences were assessed with McNemar tests and repeated measures ANOVA tests. Results: Both solutions exhibited similar latency times and intraoperative efficacy. Statistical significant lower pain levels were observed with bupivacaine between the fifth (p=0.011) and the ninth (p=0.007) postoperative hours. Bupivacaine provided significantly longer lasting soft tissue anesthesia (p<0.05). Systolic blood pressure and heart rate values were significantly higher with articaine. Conclusions: Bupivacaine could be a valid alternative to articaine especially due to its early postoperative pain prevention ability. Key words:Bupivacaine, articaine, third molar, anesthesia, postoperative pain. PMID:22143739

  7. Lipid Emulsion Inhibits Vasodilation Induced by a Toxic Dose of Bupivacaine via Attenuated Dephosphorylation of Myosin Phosphatase Target Subunit 1 in Isolated Rat Aorta.

    Science.gov (United States)

    Ok, Seong-Ho; Byon, Hyo-Jin; Kwon, Seong-Chun; Park, Jungchul; Lee, Youngju; Hwang, Yeran; Baik, Jiseok; Choi, Mun-Jeoung; Sohn, Ju-Tae

    2015-01-01

    Lipid emulsions are widely used for the treatment of systemic toxicity that arises from local anesthetics. The goal of this in vitro study was to examine the cellular mechanism associated with the lipid emulsion-mediated attenuation of vasodilation induced by a toxic dose of bupivacaine in isolated endothelium-denuded rat aorta. The effects of lipid emulsion on vasodilation induced by bupivacaine, mepivacaine, and verapamil were assessed in isolated aorta precontracted with phenylephrine, the Rho kinase stimulant NaF, and the protein kinase C activator phorbol 12,13-dibutyrate (PDBu). The effects of Rho kinase inhibitor Y-27632 on contraction induced by phenylephrine or NaF were assessed. The effects of bupivacaine on intracellular calcium concentrations ([Ca(2+)]i) and tension induced by NaF were simultaneously measured. The effects of bupivacaine alone and lipid emulsion plus bupivacaine on myosin phosphatase target subunit 1 (MYPT1) phosphorylation induced by NaF were examined in rat aortic vascular smooth muscle cells. In precontracted aorta, the lipid emulsion attenuated bupivacaine-induced vasodilation but had no effect on mepivacaine-induced vasodilation. Y-27632 attenuated contraction induced by either phenylephrine or NaF. The lipid emulsion attenuated verapamil-induced vasodilation. Compared with phenylephrine-induced precontracted aorta, bupivacaine-induced vasodilation was slightly attenuated in NaF-induced precontracted aorta. The magnitude of the bupivacaine-induced vasodilation was higher than that of a bupivacaine-induced decrease in [Ca(2+)]i. Bupivacaine attenuated NaF-induced MYPT1 phosphorylation, whereas lipid emulsion pretreatment attenuated the bupivacaine-induced inhibition of MYPT1 phosphorylation induced by NaF. Taken together, these results suggest that lipid emulsions attenuate bupivacaine-induced vasodilation via the attenuation of inhibition of MYPT1 phosphorylation evoked by NaF.

  8. INFLUENCE OF INTRAVENOUS DEXMEDETOMIDINE INFUSION ON SUBARACHNOID BLOCK WITH BUPIVACAINE IN ADULT INGUINAL HERNIORRHAPHIES

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    Suhara

    2014-09-01

    Full Text Available INTRODUCTION: Central neuraxial blocks with local anaesthetics are popular techniques of anaesthesia which have been extensively used for lower abdominal surgery. Subarachnoid block is a simple technique which requires a small dose of local anaesthetic to provide rapid and reliable surgical anaesthesia and minimal risk of drug toxicity. Duration of spinal anaesthesia may be prolonged by addition of opioids, clonidine, neostigmine, or vasoconstrictor agents to the local anesthetic drug for better post-op pain relief. Intrathecal addition of a low dose of α2-agonist like clonidine or dexmedetomidine results in significant prolongation of the duration of the sensory and motor blockade induced by hyperbaric bupivacaine. This study is designed to investigate the effects of intravenous dexmedetomidine on the duration of sensory and motor blockade induced by intrathecal administration of bupivacaine, and its associated adverse events. AIMS AND OBJEVCTIVES: To determine effect of intravenous Dexmedetomidine on the duration of analgesia with spinal Bupivacaine for adult patients undergoing herniorrhaphy and to assess the incidence of intra operative side effects, if any. STUDY SETTING: This study was done under the department of Anaesthesiology, Azeezia Medical College from March 2013 to October 2013. STUDY DESIGN: A double blind prospective randomized control study was done.50 adults aged 20 to 60 years scheduled for herniorrhaphies were allocated into two study groups, named A and B using computer generated randomization. INTERPRETATIONS AND CONCLUSION: The duration of analgesia of subarachnoid block with heavy 0.5% bupivacaine with intravenous infusion of saline and dexmedetomidine were compared. Post-operative pain was evaluated by Visual Analogue Scale. Duration of analgesia is the time taken from the administration of the drug to the time when the patient complains of pain of > 50 in Visual Analogue Scale. The duration of analgesia was longest in

  9. COMPARATIVE STUDY BETWEEN INTRATHECAL BUPIVACAINE WITH DEXMEDETOMIDINE AND INTRATHECAL BUPIVACAINE WITH FENTANYL FOR LOWER ABDOMINAL SURGERIES. A RANDOMIZED DOUBLE BLINDED CONTROLLED CLINICAL TRIAL

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    Leelavathy

    2016-05-01

    Full Text Available BACKGROUND Spinal anaesthesia is preferred choice of anaesthesia in lower abdominal surgeries since long time. Various adjuvants have been used with local anaesthetics in spinal anaesthesia to provide prolonged postoperative analgesia. Dexmedetomidine, the new highly selective α2-agonist drug, is now being used as a neuraxial adjuvant. This prospective, randomized, double blinded study was conducted to evaluate the onset, duration of sensory and motor blockade, haemodynamic stability and adverse effects of dexmedetomidine and fentanyl when given intrathecally with 0.5% hyperbaric bupivacaine. MATERIALS AND METHODS A total of 60 patients of ASA I and II scheduled for elective lower abdominal surgeries were selected and randomly allocated into 2 groups of 30 each. Group D received 0.5% hyperbaric bupivacaine (15 mg plus dexmedetomidine (10 μg, Group F received 0.5% hyperbaric bupivacaine (15 mg plus 25 μg fentanyl intrathecally. The onset of sensory andmotor blockade, duration of sensory and motor blockade, duration of analgesia, haemodynamic changes and side effects (Nausea, vomiting, pruritus, respiratory depression, bradycardia or hypotension were recorded. RESULTS Onset of sensory blockade was faster in fentanyl group than dexmedetomidine group, but this was statistically insignificant. Patients in dexmedetomidine group (D had faster motor onset (p<0.01 and significantly longer sensory and motor blockade time than patients in fentanyl group (F (p<0.01. Duration of analgesia was better with dexmedetomidine (p<0.01. There were no significant haemodynamic changes or adverse effects in any of the groups. It was observed that sedation was better in Group D. CONCLUSIONS Intrathecal Dexmedetomidine is a better adjuvant than intrathecal Fentanyl with prolonged sensory and motor blockade and profound postoperative analgesia.

  10. A COMPARATIVE STUDY OF CLINICAL EFFECTS OF INTRATHECAL 0.5% BUPIVACAINE WITH CLONIDINE VERSUS 0.5% BUPIVACAINE IN PATI ENTS UNDERGOING MAJOR GYNAECOLO GICAL SURGERIES

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    Penchalaiah

    2015-07-01

    Full Text Available Spinal anaesthesia requires a small volume of drug to produce profound sensory analgesia and motor blockade but has limited duration of action. So a properly chosen adjuvant to local anaesthetic agent produces the best way to achieve a better quality regional block. Hence the present study was undertaken to compare the effects of intrathecal clonidine (30μg and pla cebo, when administered together with hyperbaric bupivacaine 0.5% for major gynaecological surgeries like Total Abdominal hysterectomy, vaginal hysterectomy, and Manchester repair.100 patients posted for elective major gynaecological surgeries were selecte d and allocated randomly into two groups. Each group of 50 patients. Group I : - 0.5% of Hyperbaric Bupivacaine (17.5mg + placebo Group II: - 0.5% of Hyperbaric Bupivacaine (17.5mg + clonidine(30μg. Onset of sensory block, motor block, quality of analgesi a, duration of analgesia and duration motor blockade between two groups were compared and contrasted. Patient vitals like Pulse rate, Blood pressure, Respiratory rate, SPO 2 and ECG were monitored during the study. During the study observed for the side eff ects like Nausea, Vomiting, Hypotension, Bradycardia, and dryness of mouth. CONCLUSIONS : A re Quality of analgesia is excellent in patients receiving clonidine when compared to placebo group. Total duration of analgesia and motor blockade was significantly prolong in clonidine group compared to placebo group. Minimal side effects like mild hypotension, mild sedation, and dryness of mouth were seen in clonidine group which does not require any active intervention.

  11. The safety of liposome bupivacaine following various routes of administration in animals

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    Joshi GP; Patou G; Kharitonov V

    2015-01-01

    Girish P Joshi,1 Gary Patou,2 Vladimir Kharitonov21Department of Anesthesiology and Pain Management, University of Texas Southwestern Medical School, Dallas, TX, 2Pacira Pharmaceuticals, Inc., Parsippany, NJ, USABackground: This report presents results from four preclinical studies evaluating safety and pharmacokinetics (PKs) of liposome bupivacaine following intravascular (intravenous [IV], intra-arterial [IA]), epidural, and intrathecal administration in dogs.Methods: Intravascular administ...

  12. Addition of intrathecal Dexamethasone to Bupivacaine for spinal anesthesia in orthopedic surgery

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    Nadia Bani-hashem

    2011-01-01

    Full Text Available Objectives: Spinal anesthesia has the advantage that profound nerve block can be produced in a large part of the body by the relatively simple injection of a small amount of local anesthetic. Intrathecal local anesthetics have limited duration. Different additives have been used to prolong spinal anesthesia. The effect of corticosteroids in prolonging the analgesic effects of local anesthetics in peripheral nerves is well documented. The purpose of this investigation was to determine whether the addition of dexamethasone to intrathecal bupivacaine would prolong the duration of sensory analgesia or not. Methods: We conducted a randomized, prospective, double-blind, case-control, clinical trial. A total of 50 patients were scheduled for orthopedic surgery under spinal anesthesia. The patients were randomly allocated to receive 15 mg hyperbaric bupivacaine 0.5% with 2 cc normal saline (control group or 15 mg hyperbaric bupivacaine 0.5% plus 8 mg dexamethasone (case group intrathecally. The patients were evaluated for quality, quantity, and duration of block; blood pressure, heart rate, nausea, and vomiting or other complications. Results: There were no signification differences in demographic data, sensory level, and onset time of the sensory block between two groups. Sensory block duration in the case group was 119±10.69 minutes and in the control group was 89.44±8.37 minutes which was significantly higher in the case group (P<0.001. The duration of analgesia was 401.92±72.44 minutes in the case group; whereas it was 202±43.67 minutes in the control group (P<0.001. The frequency of complications was not different between two groups. Conclusion: This study has shown that the addition of intrathecal dexamethasone to bupivacaine significantly improved the duration of sensory block in spinal anesthesia without any changes in onset time and complications.

  13. Efficacy of epidural administration of morphine with bupivacaine for orthopaedic surgery in sheep

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    Durej M.; Ledecký V.; Michalák D.; Hluchý M.; Kòazovický D.

    2012-01-01

    The aim of the study was to test the hypothesis that epidural administration of morphine with bupivacaine provides more intense and sufficient perioperative analgesia compared with parenterally administrated butorphanol during orthopaedic surgery. Sheep were assigned to group C (control group, 6 sheep) and group E (epidural, 5 sheep). Sheep from group C were pre-medicated with midazolam (0.3 mg/kg, i.m.) and butorphanol (0.2 mg/kg, i.m.). Propofol was used ...

  14. Effects of Oral Gabapentin, Local Bupivacaine and Intravenous Pethidine on Post Tonsillectomy Pain

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    Soroush Amani

    2015-09-01

    Full Text Available Introduction: Tonsillectomy is one of the most common surgeries performed worldwide. Post-operative pain arising from tonsillectomy is one of the earliest complications that can postpone oral nutrition and increase the hospitalization period. Administration of opioids via injection is usually preferred to relive pain in these patients. However, the side effects of this approach prompted us to seek alternative treatments. In this study, the effectiveness of oral gabapentin is compared with an intravenous (IV injection of pethidine and a local injection of bupivacaine in the control of pain after tonsillectomy.   Materials and Methods: This clinical trial was performed on 7-15 year-old patients who were candidates for tonsillectomy at Shahrekord Kashani hospital from 2012–2013. The patients were divided into three groups at random. Group 1 was give 20 mg/kg oral gabapentin 1 hour before anesthesia. In Group 2, 2.5 ml bupivacaine 0.25% was injected into each tonsil bed by a surgeon. In Group 3,1 mg/kg pethidine was injected intravenously after intubation. To assess post-operative pain, the Oucher scale was used in recovery as well as 3,6,12, and 24 hours after surgery.   Results: The pain score was lowest in the gabapentin group and highest in the bupivacaine group during the study. The pain score in the gabapentin group was significantly lower than that in the bupivacaine group (P0.05.   Conclusion:  Gabapentin, with its antihyperalgesic properties and other unknown properties, is a convenient drug for controlling pain following tonsillectomy.

  15. Post-operative pain and analgesic requirements after paravertebral block for mastectomy: A randomized controlled trial of different concentrations of bupivacaine and fentanyl

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    V Bhuvaneswari

    2012-01-01

    Full Text Available Background: Paravertebral block (PVB is useful for post-operative analgesia after breast surgery. Bupivacaine is used for PVB at higher concentrations (0.5%, which may lead to systemic toxicity after absorption. Therefore, we proposed to evaluate the efficacy of lower concentrations of bupivacaine with and without fentanyl for thoracic PVB in patients undergoing surgery for carcinoma breast. Methods: Forty-eight patients scheduled for surgery for breast cancer were enrolled in this prospective, randomized, double-blinded, placebo-controlled trial and were allocated to one of four groups: 0.25% bupivacaine with epinephrine 5 mcg/ ml, 0.25% bupivacaine + epinephrine 5 mcg/ ml with 2 mcg/ml fentanyl, 0.5% bupivacaine + epinephrine 5 mcg/ml or isotonic saline. PVB was performed and 0.3 ml/kg of the test drug was administered before induction of general anaesthesia. The primary outcome assessed was post-operative analgesic requirement for a period of 24 h. Secondary outcome measures were post-operative pain scores at rest and on movement of the arm, latency to first opioid, post-operative nausea and vomiting, quality of sleep, ability to move arm and patient satisfaction. Results: The patient characteristics and anaesthetic technique were comparable among the groups. The rescue analgesic consumption as well as cumulative pain scores at rest and on movement were significantly less in 0.25% bupivacaine+epinephrine with fentanyl and 0.5% bupivacaine+epinephrine groups (P<0.05. The average duration of analgesia was found to be 18 h after either 0.25% bupivacaine with epinephrine+fentanyl or 0.5% bupivacaine with epinephrine. Conclusions: Lower concentrations of bupivacaine can be combined with fentanyl to achieve analgesic efficacy similar to bupivacaine at higher concentrations, decreasing the risk of toxicity in PVB.

  16. EFFICACY OF DEXAMETHASONE AS AN ADJUVANT TO BUPIVACAINE IN SUPRACLAVICULAR BRACHIAL PLEXUS BLOCK

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    Rakesh

    2015-08-01

    Full Text Available AIMS: Brachial plexus nerve blocks have analgesic and opioid sparing benefits for upper extremity surgery. Single - injection techniques are limited by duration of local anaesthetic agents, however Continuous block techniques can be used for prolonged anaesthesia and analgesia but it presents management challenges. The study was designed to compare the effects of dexamethasone administered as an adjunct to bupivacaine in supraclavicular brachial plexus block on the onset , duration and postoperative analgesia following upper limb surgeries. METHODS AND MATERIAL: A prospective, double - blind study was undertaken in patients scheduled for upper limb surgeries under supraclavicular brachial plexus block. Sixty patients were randomly divided into two groups, Group B and BD . Group B received 30 ml of 0.375% bupivacaine with 2 ml normal saline while Group BD received 30 ml of 0.375% bupivacain with 2ml(8mg dexamethasone for supraclavicular brachial plexus block. The groups were compared regarding quality of sensory and motor blockade, duration of post operative analgesia and intra and postoperative complications. RESULTS: There was a significant increase in duration of motor and sensory block and analgesia in Group BD as compared to Group B patients ( P < 0.0001. No significant side effects were noted. CONCLUSIONS: The addition of 8 mg of dexamethasone to bupivac a ine in supraclavicular brachial plexus block prolongs the duration of motor and sensory block and extends the analgesia period. KEYWORDS: A naesthesia adjuvants; D examethasone; B rachial plexus block .

  17. INTRATHECAL USE OF CLONIDINE WITH HYPERBARIC BUPIVACAINE IN ORTHOPAEDIC SURGERIES OF LOWER LIMB

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    Chandrashekharappa

    2014-04-01

    Full Text Available BACKGROUND: Clonidine, an α2 adrenergic agonist is used as adjuvant to local anesthetics with variable results. We studied effects of the intrathecal use of low dose clonidine with 0.5% hyperbaric bupivacaine on duration of analgesia and hemodynamic parameters. METHOD: This prospective study done on 60 patients belonging to ASA 1 or 2, undergoing orthopedic surgeries of lower limb under subarachnoid block were randomized into two groups(30 patients each, group 1 received saline and group 2 received 30 µg clonidine as adjuvant along with 2.5 ml of 0.5% hyperbaric bupivacaine intrathecal injection. During study, the duration and onset of sensory and motor block, duration of analgesia, and total requirement of rescue analgesics along with hemodynamic changes and side effects of study drugs were recorded. RESULTS: we found time delay in onset of both sensory and motor block in clonidine group which was statistically insignificant, and significant prolongation of both sensory (140.26 minutes Vs. 93.63 minutes and motor blockade (153.74 minutes Vs. 104.79 minutes p-value <0.001. CONCLUSION: Adjuvant use of low dose clonidine (30 µg with hyperbaric bupivacaine prolongs the duration of both sensory and motor blockade, and duration of analgesia without much hemodynamic adverse effects.

  18. EFFECT OF ORAL CLONIDINE PREMEDICATION ON THE ONSET AND DURATION OF SPINAL ANESTHESIA WITH HYPERBARIC BUPIVACAINE

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    Shruthi

    2014-09-01

    Full Text Available BACKGROUND: Spinal anesthesia is the most common technique used for lower abdominal surgeries. Hyperbaric Bupivacaine has limited duration of action. Clonidine has been used to prolong the duration of local anaesthetic. Hence in our study, we studied the effects of oral clonidine premedication on spinal anaesthesia with hyperbaric Bupivacaine with reference to sedation, onset and duration of sensory and motor blockade including its effects on hemodynamic status. METHODS: Prospective randomized, double – blinded placebo, control study, two groups of thirty patients each were selected. One group (Group C received 150μg clonidine tablets and the other group (Group B received placebo, 90 minutes before anesthesia. Primary outcome were sedation, onset and duration of sensory and motor blockade. Hemodynamic and other effects of the study drug were the secondary outcomes. RESULT: It was observed that clonidine premedication resulted in higher incidence of moderate sedation, hastens the onset of sensory block but has no effect on the onset of motor blockade. It prolonged the duration of sensory and motor blockade. Clonidine at a dose of 150μg is not associated with any greater change in heart rate and blood pressure following spinal anesthesia. CONCLUSION: We conclude that oral clonidine premedication,in patients with hyperbaric bupivacaine hastesns the onset of sensory block and prolongs the duration of sensory and motor anesthesia with moderate sedation.

  19. The effect of adding epinephrine to combination of sufentanil and bupivacaine in spinal analgesia during labor

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    Parisa Golfam

    2011-03-01

    Full Text Available Background: Spinal analgesia is one of the effective and rapid methods for labor. It is not commonly used because of short duration of analgesia and motor block, which limits mother's force in labor progression. We attempted to prolong duration and quality of analgesia by adding Epinephrine.Methods: In this quasi-experimental study 90 pregnant women gravid II and III who referred to Motazedi and Imam Reza Educational & Medical Centers were recruited and divided into two groups of case and control (45 subjects in each group. The case group received spinal analgesia using Sufentanil and Bupivacaine, and Epinephrine while the control group received Sufentanil and Bupivacaine. Data including feeling of pain, motor block, duration of analgesia, fetal heart rate, nausea and vomiting, blood pressure was collected and analyzed using chi-square and t test. Results: duration of analgesia and vomiting were significantly increased in the case group. (p=0.001, p=0.01 respectively. Hemodynamic status in mothers and Apgar score of neonates were not significantly different between two groups.Conclusion: It seems that adding Epinephrine to Sufentanil and Bupivacaine could increase analgesia duration without altering in sensory level although could increase nausea and vomiting its recommended in labor analgesia.

  20. Postoperative analgesia in children when using clonidine in addition to fentanyl with bupivacaine given caudally.

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    Jarraya, Anouar; Elleuch, Sahar; Zouari, Jawhar; Smaoui, Mohamed; Laabidi, Sofiene; Kolsi, Kamel

    2016-01-01

    The aim of the study was to evaluate the efficacy of clonidine in association with fentanyl as an additive to bupivacaine 0.25% given via single shot caudal epidural in pediatric patients for postoperative pain relief. In the present prospective randomized double blind study, 40 children of ASA-I-II aged 1-5 years scheduled for infraumblical surgical procedures were randomly allocated to two groups to receive either bupivacaine 0.25% (1 ml/kg) with fentanyl 1 μg/kg and clonidine 1μg/kg (group I) or bupivacaine 0.25% (1 ml/kg) with fentanyl 1 μg/kg (group II). Caudal block was performed after the induction of general anesthesia. Postoperatively patients were observed for analgesia, sedation, hemodynamic parameters, and side effects or complications. Both the groups were similar with respect to patient and various block characteristics. Heart rate and blood pressure were not different in 2 groups. Significantly prolonged duration of post-operative analgesia was observed in group I (Pbupivacaine in single shot caudal epidural in children may provide better and longer analgesia after infraumblical surgical procedures.

  1. A Comparative study of intrathecal dexmedetomidine and fentanyl as adjuvants to Bupivacaine

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    Rajni Gupta

    2011-01-01

    Full Text Available Background: Various adjuvants have been used with local anesthetics in spinal anesthesia to avoid intraoperative visceral and somatic pain and to provide prolonged postoperative analgesia. Dexmedetomidine, the new highly selective α2-agonist drug, is now being used as a neuraxial adjuvant. The aim of this study was to evaluate the onset and duration of sensory and motor block, hemodynamic effect, postoperative analgesia, and adverse effects of dexmedetomidine or fentanyl given intrathecally with hyperbaric 0.5% bupivacaine. Materials and Methods: Sixty patients classified in American Society of Anesthesiologists classes I and II scheduled for lower abdominal surgeries were studied. Patients were randomly allocated to receive either 12.5 mg hyperbaric bupivacaine plus 5 μg dexmedetomidine (group D, n=30 or 12.5 mg hyperbaric bupivacaine plus 25 μg fentanyl (group F, n=30 intrathecal. Results: Patients in dexmedetomidine group (D had a significantly longer sensory and motor block time than patients in fentanyl group (F. The mean time of sensory regression to S1 was 476±23 min in group D and 187±12 min in group F (P<0.001. The regression time of motor block to reach modified Bromage 0 was 421±21 min in group D and 149±18 min in group F (P<0.001. Conclusions: Intrathecal dexmedetomidine is associated with prolonged motor and sensory block, hemodynamic stability, and reduced demand for rescue analgesics in 24 h as compared to fentanyl.

  2. EFFECT OF DEXMEDETOMIDINE ADDED TO SPINAL BUPIVACAINE FOR TOTAL ABDOMINAL HYSTERECTOMY

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    Vinod

    2014-09-01

    Full Text Available BACKGROUND: Various adjuvants are being used with local anaesthetics in spinal anaesthesia for prolongation of intraoperative and post-operative analgesia. Dexmedetomidine, a highly selective α2 adrenergic agonist is a new neuroaxial adjuvant gaining popularity. AIMS: To evaluate the onset and duration of sensory and motor block, hemodynamic effect, post-operative analgesia and adverse effects of dexmedetomidine given intrathecally with hyperbaric 0.5% bupivacaine. METHODOLOGY: A study was carried out in 30 adult female patients aged 18-55 yrs of ASA grade I and II in each group scheduled for Total abdominal hysterectomy under spinal anaesthesia. Group B received 2.5ml of 0.5% hyperbaric bupivacaine with 0.5ml of normal saline. Group D received 2.5ml of 0.5% hyperbaric bupivacaine with 10µg of dexmedetomidine in 0.5ml of normal saline. The onset time to reach peak sensory and motor level, regression time of sensory and motor block, rescue analgesia, hemodynamic changes and side effects were recorded. STATISTICAL ANALYSIS USED: Data obtained were tabulated and analyzed using statistical package for social science (SPSS 16.0 evaluation version to calculate the sample size. Descriptive data are presented as Mean ± SD and Continuous data are analyzed by unpaired’t’ test. P<0.05 was considered statistically significant. RESULTS: Patients in dexmedetomidine group (group D had a significantly longer sensory and motor block than patients in bupivacaine group (group B. The mean time of sensory regression to S1 was (323 ± 31 min in group D and (191 ± 15min in group B. The regression time of motor block to reach Bromage 0 was (314 ± 30 min in group D and (163 ± 15 min in group B. The time to rescue analgesia was significantly longer in group D (383 ± 38 min as compared to group B (228.6 ± 15 min. CONCLUSION: Intrathecal dexmedetomidine as adjuvant to spinal bupivacaine is associated with prolonged sensory and motor block, hemodynamic stability

  3. Poly(DL:lactic acid-castor oil) 3:7-bupivacaine formulation: reducing burst effect prolongs efficacy in vivo.

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    Sokolsky-Papkov, Marina; Golovanevski, Ludmila; Domb, Abraham J; Weiniger, Carolyn F

    2010-06-01

    Prolonged analgesia may be achieved using a single injection of slow-release local anesthetic formulation. The study objective was to improve the efficacy of a previously reported formulation comprising 10% bupivacaine in poly(DL:lactic acid co castor oil) 3:7. The polymer was loaded with 15% bupivacaine and injected through a 22G needle close to the sciatic nerve of ICR mice. Sensory and motor nerve blockade were measured. The efficacy and toxicity of the polymer-drug combination were determined. Sixty percent of the incorporated bupivacaine was released during 1 week in vitro. During in vitro release no burst effect was seen, suggesting low toxicity of the formulation. Single injection of 0.1 mL of 15% polymer-bupivacaine formulation caused motor block that lasted 64 h and sensory block that lasted 96 h. The MTD of the polymer-drug formulation was established as 0.175 mL. Microscopic examination of the injection sites revealed reversible nerve inflammation and normal internal organs. The polymer poly(DL:lactic acid co castor oil) 3:7 is a safe carrier for prolonged activity of bupivacaine up to 96 h. The increase of drug load in the formulation reduces the drug release rates due to stronger polymer-drug interactions and higher overall hydrophobicity of the formulation.

  4. Bupivacaine salts of diflunisal and other aromatic hydroxycarboxylic acids: aqueous solubility and release characteristics from solutions and suspensions using a rotating dialysis cell model.

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    Østergaard, Jesper; Larsen, Susan W; Parshad, Henrik; Larsen, Claus

    2005-11-01

    In the search for poorly soluble bupivacaine salts potentially enabling prolonged postoperative pain relief after local joint administration in the form of suspensions the solubility of bupivacaine salts of diflunisal and other aromatic hydroxycarboxylic acids were investigated together with the release characteristics of selected 1:1 salts from solutions and suspensions using a rotating dialysis cell model. The poorest soluble bupivacaine salts were obtained from the aromatic ortho-hydroxycarboxylic acids diflunisal, 5-iodosalicylic acid, and salicylic acid (aqueous solubilities: 0.6-1.9 mM at 37 degrees C). Diffusant appearance rates in the acceptor phase upon instillation of solutions of various salts in the donor cell applied to first-order kinetics. Calculated permeability coefficients for bupivacaine and the counterions diflunisal, 5-iodosalicylic acid, and mandelic acid were found to be correlated with the molecular size of the diffusants. Release experiments at physiological pH involving suspensions of the bupivacaine-diflunisal salt revealed that at each sampling point the diflunisal concentration exceeded that of bupivacaine in the acceptor phase. However, after an initial lag period, a steady state situation was attained resulting in equal and constant fluxes of the two diffusants controlled by the permeability coefficients in combination with the solubility product of the salt. Due to the fact that the saturation solubility of the bupivacaine-salicylic acid salt in water exceeded that of bupivacaine at pH 7.4, suspensions of the latter salt were unable to provide simultaneous release of the cationic and anionic species at pH 7.4. The release profiles were characterised by a rapid release of salicylate accompanied by a much slower appearance of bupivacaine in the acceptor phase caused by precipitation of bupivacaine base from the solution upon dissolution of the salt in the donor cell.

  5. Comparative effect of lidocaine and bupivacaine on glucose uptake and lactate production in the perfused working rat heart

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    Cronau, L.H. Jr.; Merin, R.G.; Aboulish, E.; Steenberg, M.L.; Maljorda, A.

    1986-03-01

    It has been suggested that at equivalent therapeutic concentrations, lidocaine and bupivacaine may have different cardiotoxic potency. In the isolated working rat heart preparation, the effect of a range of lidocaine and bupivacaine concentrations on glucose uptake and lactate production (LP) were observed. Insulin was added, 10 ..mu../L, to Ringer's solution containing /sup 3/H-labeled glucose to measure the glycolytic flux (GF). The effect of the local anesthetics on LP at the indicated concentrations were similar. Lidocaine appears to depress the glycolytic flux from exogenous glucose to a lesser degree. Bupivacaine, 10 mg/L, depresses VO/sub 2/ to a greater degree than does lidocaine, 40 mg/L.

  6. The Efficacy of Postoperative Wound Infusion with Bupivacaine for Pain Control after Cesarean Delivery: Randomized Double Blind Clinical Trial

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    Azin Alavi

    2007-06-01

    Full Text Available Objective: This study investigated the efficacy of bupivacaine wound infusion for pain control and opioid sparing effect after cesarean delivery.Materials and methods: We conducted a randomized double blind, placebo controlled clinical trial on 60 parturients undergoing cesarean section at a university hospital in Tehran. Patients were randomized to receive a pump infusion system that was filled with either 0.25% bupivacaine or equal volume of distilled water. A catheter was placed above the fascia and connected to electronic pump for 24 hours. Postoperative analog pain scores and morphine consumption were assessed at 6, 12 and 24 hours. Also time interval to first ambulation, length of hospitalization, complications and patient satisfaction were recorded. Data were analyzed using the SPSS software and P < 0.05 was considered statistically significant. Mann-Whitney u-test, student t-test and chi-square were used. Results: There were no differences in patient demographics and length of hospitalization and patient-generated resting pain scores between the two groups. Pain scores after coughing and leg raise during the first 6 postoperative hours were significantly less in the Bupivacaine group (P<0.001. The total dose of morphine consumption during the 24 hours study period was 2.5 ± 2.5 mg vs. 7.3 ± 2.7 mg for the bupivacaine and control groups, respectively (P<0.001. Compared with the control group, time to first ambulation was shorter in the bupivacaine group (11± 5h vs. 16 ± 4h (P< 0.01. Conclusion: Bupivacaine wound infusion was a simple and safe technique that provides effective analgesia and reduces morphine requirements after cesarean delivery.

  7. Comparison of low doses of intrathecal bupivacaine in combined spinal epidural anaesthesia with epidural volume extension for caesarean delivery

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    Jain, Gaurav; Dinesh K. Singh; Bansal, Pranav; Ahmed, Bashir; Dhama, Satyavir S.

    2012-01-01

    Aims and Objectives: This study aims to compare relative efficacy of three different doses of intrathecal bupivacaine in combined spinal epidural anaesthesia (CSEA) for caesarean delivery. Materials and Methods: In a double blinded manner, 204 cases were randomized into three groups: I, II, and III to receive a dose of 4, 5.5, and 7 mg of hyperbaric bupivacaine with a fixed dose of 25 μg fentanyl intrathecally, and Dextran 40 w/v 10 mL given for epidural volume extension (EVE), in CSEA. Our p...

  8. A COMPARATIVE STUDY OF INTRATHECAL DEXMEDETOMIDINE AND FENTANYL AS ADJUVANTS TO BUPIVACAINE FOR INFRA - UMBILICAL SURGERIES

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    Ch. Srinivas

    2015-01-01

    Full Text Available BACKGROUND: Several adjuncts like adrenaline,opioids and alpha - 2 adrenergic agonists are being used with local anaesthetics intrathecally for prolongation of intra - operative and post - operative analgesia and to reduce the side - effects of high doses of local anaesthetics. [1] AIM: The present study was done to evaluate the onset and duration of sensory and motor block, hemodynamic effects, pos t - operative analgesia and adverse effects of Dexmedetomidine or Fentanyl given intrathecally with hyperbaric 0.5% Bupivacaine. MATERIALS AND METHODS: Ninety inpatients of ASA class I and II scheduled for various infra - umbilical surgeries under Sub - Arachnoi d Block were randomly divided into three groups of 30 each namely C (Control, D(Dexmedetomidine and F(Fentanyl. All received 12.5mg hyperbaric bupivacaine plus 0.5 ml Normal Saline in Group C (Control,5 μ g Dexmedetomidine (diluted in preservative free Normal saline of 0.5ml in Group D (Dexmedetomidine and 25 μ g Fentanyl (vol 0.5 ml in Group F (Fentanyl. The onset time to reach peak sensory and motor level, the regression time for sensory and motor block, hemodynamic changes and side - effects were not ed. RESULTS: The duration of sensory and motor block,rescue analgesia was significantly prolonged in Dexmedetomidine group when compared to that of the Fentanyl group which is longer than that of Control group. CONCLUSION: Dexmedetomidine 5 μg seems to be better than 25μg Fentanyl as a neuraxial adjuvant to hyperbaric Bupivacaine.

  9. Evaluation of the effect of added fentanyl to hyperbaric bupivacaine for spinal anesthesia

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    Mina Jafari-Javid

    2011-01-01

    Full Text Available Background: Potentiating the effect of the intrathecal local anesthetics by intrathecal injection of opiods for intra-abdominal surgeries is known. The objective of this study is to investigate the pain-relieving effects of intrathecal fentanyl to bupivacaine in elective caesarean surgery.Materials and Method: In a double blind clinical trial 60 patients candidate for elective cesarean section. They were studied in two groups. Cases in the control group received 12.5 mg of bupivacaine and in the study group received 8 mg of bupivacaine and 20 µg fentanyl. The parameters taken into consideration were hemodynamic stability, visceral pain, nausea and vomiting, intraoperative shivering, the amount of intraoperative administered dose of fentanyl and ephedrine and postoperative pain. Results: The average blood pressure changes after 5, 10, 20, 60 minutes were lower in the study group. Shivering and ephedrine dose during operation were lower in study group and statistically significant respectively (p=0.01, p=0.001, respectively. Duration of analgesia after operation increased from (115.5±7.5 min in control group to (138.5±9.9 min in study group, but the quality of analgesia during peritoneal manipulation did not change. Pulse rate and vomiting during operation were not statistically different between two groups.Conclusion: Reduction of local anesthetic dose with adding fentanyl may cause hemodynamic stability, increasing the postoperative pain-free time, decrease shivering and vasopressor consumption in spinal anesthesia and reduction of the amount of blood pressure drop during elective cesarean surgery

  10. Comparison of co-administration of clonidine and pethidine with bupivacaine during spinal anesthesia

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    Farnad Imani

    2011-05-01

    Full Text Available Background: The aim of this study was to evaluate using the combination of pethidine and clonidine in order to produce synergistic effect for blocking of pain pathways in spinal cord and decrease the adverse effects of each drug and comparison it with bupivacaine.Materials and Method: This is a randomized double blind controlled clinical trial which was approved by the ethics committee of Iran University of Medical Sciences. Fifty patients (25 patients in each groups in ASA class 1 or 2 which were selected for surgery on lower limbs, entered into the study. The patients were randomly allocated in two groups and received following regimens: CP (spinal anesthesia with combination of clonidine 0.75 µgr/kg and pethidine 0.75 mg/kg and B (spinal anesthesia with bupivacaine 0.5%, 15 mg.Results: The onset time of sensory block on T10 in group CP (5.9±1.6 min was significantly less than group B (9.2±2.3 min [p<0.001]. The time to complete motor block in group CP (38.8±5.7 min was significantly longer than group B (19.6±4.7 min [p<0.001]. The time to the first analgesic request was significantly longer in the group CP (11.6±2 h than the group B (6±0.8 h [p<0.001]. Mean drop in the systolic blood pressure in group CP (22.6%±2.4% was significantly more than group B (11%±4.3% (p<0.001.Conclusion: It is recommended to use bupivacaine for anesthesia in operations on pelvis and lower limbs but it is better to co-administer clonidine and pethidine in patients who must be avoided from raising blood pressure and heart rate and with less than two hours operation time

  11. Comparison of Intraarticular Bupivacaine and Levobupivacaine with Morphine and Epinephrine for Knee Arthroscopy

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    Ozdemir, Nurdan; Kaya, Fatma Nur; Gurbet, Alp; Yilmazlar, Aysun; Demirag, Burak; Mandiraci, Bilgen Onbasi

    2013-01-01

    Objective: To compare the efficacy of intraarticularly injected bupivacaine with levobupivacaine when administered in combination with morphine and adrenaline for post-operative analgesia and functional recovery after knee surgery. Materials and Methods: Sixty American Society of Anesthesiologists physical status I–II patients were randomized into three groups: Group B was administered 30 mL isobaric 0.5% bupivacaine, 2 mg morphine and 100 μg adrenaline, Group L was administered 30 mL 0.5% levobupivacaine, 2 mg morphine and 100 μg adrenaline, and Group C was administered 30 mL 0.9% NaCl solution into the knee joint by the surgeon at the end of surgery. The morphine usage and visual analog pain scores were recorded regularly afterwards. We also recorded the time that elapsed before each patients’ first mobilization, positive response to straight leg raising, tolerance to 30–50° knee flexion, recovery of quadriceps reflexes and discharge from the hospital. We also recorded patient and surgeon satisfaction. Results: The pain scale values were lower in Groups B and L than in Group C at 2, 4, 6, 8, 12 and 24 hours post-operatively (all p<0.001). In Groups B and L, the time for first analgesic request was longer (p<0.01), the morphine consumption was lower (p<0.001), and the duration of morphine usage was shorter (p<0.001). The times to positive response to straight leg raising, tolerance to 30–50° knee flexion and the first mobilization were shorter in Groups B and L (p<0.001 for all). Conclusion: After arthroscopic knee surgery, intraarticular levobupivacaine combined with morphine and adrenaline decreases analgesic requirements, shortens the postoperative duration of analgesic use and hastens mobilization as effectively as bupivacaine. PMID:25610257

  12. Role of wound instillation with bupivacaine through surgical drains for postoperative analgesia in modified radical mastectomy

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    Nirmala Jonnavithula

    2015-01-01

    Full Text Available Background and Aims: Modified Radical Mastectomy (MRM is the commonly used surgical procedure for operable breast cancer, which involves extensive tissue dissection. Therefore, wound instillation with local anaesthetic may provide better postoperative analgesia than infiltration along the line of incision. We hypothesised that instillation of bupivacaine through chest and axillary drains into the wound may provide postoperative analgesia. Methods: In this prospective randomised controlled study 60 patients aged 45-60 years were divided into three groups. All patients were administered general anaesthesia. At the end of the surgical procedure, axillary and chest wall drains were placed before closure. Group C was the control with no instillation; Group S received 40 ml normal saline, 20 ml through each drain; and Group B received 40 ml of 0.25% bupivacaine and the drains were clamped for 10 min. After extubation, pain score for both static and dynamic pain was evaluated using visual analog scale and then 4 th hourly till 24 h. Rescue analgesia was injection tramadol, if the pain score exceeds 4. Statistical analysis was performed using SPSS version 13. Results : There was a significant difference in the cumulative analgesic requirement and the number of analgesic demands between the groups (P: 0.000. The mean duration of analgesia in the bupivacaine group was 14.6 h, 10.3 in the saline group and 4.3 h in the control group. Conclusion : Wound instillation with local anaesthetics is a simple and effective means of providing good analgesia without any major side-effects.

  13. Intratunical bupivacaine and methylprednisolone instillation for scrotal pain after testicular sperm retrieval procedures

    Institute of Scientific and Technical Information of China (English)

    GulK.Talu; TibetErdogru; TanselKaplancan; MustafaBahceci

    2003-01-01

    Aim:To investigate the effect of intratunical instillation of bupivacaine and methylprednisolone for scrotal pain,swelling and peritesticular fibrosis due to testicular sperm retrieval procedures.Methods:A total of 65 patients were randomly divided into two groups.In the instillation group(GI),34 patients were administered 2.5mL of 0.5% bupivacaine combined with 10 mg/mL methylprednisolone before closure of the tunica vaginalis.In the control group (GC),31 patients only received analgesics postoperatively by intramuscular route.The pain(by visual analogue scale,VAS)and duration of pain-free period after surgery between the two groups were evaluated at 2 and 4 h and at days 2 and 7 postoperatively.Results:The mean pain scores were significantly lower in the GI than in the GC group at 2 and 4 h after surgery(P<0.05 and P<0.01,respectively).The mean duration of pain free interval after the procedure was 47.8±16.9(12-76)h in GI,which was significantly longer than that in GC[(9.9±3.6;4-20)h].Besides,in the GI,29% of patients were completely free from pain and 67% had no scrotal swelling,but in the GC,all the patients required additional NSAID injection due to pain and only 3 % had no scrotal swelling.Conclusion:This study confirms that direct intratunical instillation of bupivacaine and methylprednisolone around the testis reduces the postoperative pain,scrotal swelling and peritesticular fibrosis.

  14. A case of trigeminal hypersensitivity after administration of intrathecal sufentanil and bupivacaine for labor analgesia

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    Adriano Bechara de Souza Hobaika

    2014-01-01

    Full Text Available Rostral spread of intrathecal drugs and sensitization of supraspinal sites may provoke several adverse effects. This case describes a patient with right hemifacial paresthesia, trismus and dysphasia on the trigeminal nerve distribution after intrathecal sufentanil administration. Primigravida, 34 years, 39 weeks of pregnancy, with hypothyroidism and pregnancy induced hypertension. Allergic to latex. In the use of puran T4, 50 μg /day. When the patient presented cervical dilatation of 4 cm, she requested analgesia. She was placed in the sitting position and a spinal puncture was performed with a 27G needle pencil point in L4/L5 (1.5 mg of bupivacaine plus 7.5 μg of sufentanil. Next, was performed an epidural puncture in the same space. It was injected bupivacaine 0.065%, 10 ml, to facilitate the passage of the catheter. After 5 min lying down in the lateral upright position, she complained of perioral and right hemifacial paresthesia, mainly maxillary and periorbital, as well as trismus and difficulty to speak. The symptoms lasted for 30 min and resolved spontaneously. After 1 h, patient requested supplementary analgesia (12 ml of bupivacaine 0.125% and a healthy baby girl was born. Temporary mental alterations have been described with the use of fentanyl and sufentanil in combined epidural-spinal analgesia, such as aphasia, difficulty of swallowing, mental confusion and even unconsciousness. In this patient, facial areas with paresthesia indicated by patient appear in clear association with the ophthalmic and maxillary branches of the trigeminal nerve and the occurrence of trismus and dysphagia are in association with the mandibular motor branch. The exact mechanism of rostral spread is not known, but it is speculated that after spinal drug administration, a subsequent epidural dose may reduce the intratecal space and propel the drug into the supraspinal sites.

  15. A case of trigeminal hypersensitivity after administration of intrathecal sufentanil and bupivacaine for labor analgesia.

    Science.gov (United States)

    de Souza Hobaika, Adriano Bechara

    2014-07-01

    Rostral spread of intrathecal drugs and sensitization of supraspinal sites may provoke several adverse effects. This case describes a patient with right hemifacial paresthesia, trismus and dysphasia on the trigeminal nerve distribution after intrathecal sufentanil administration. Primigravida, 34 years, 39 weeks of pregnancy, with hypothyroidism and pregnancy induced hypertension. Allergic to latex. In the use of puran T4, 50 μg /day. When the patient presented cervical dilatation of 4 cm, she requested analgesia. She was placed in the sitting position and a spinal puncture was performed with a 27G needle pencil point in L4/L5 (1.5 mg of bupivacaine plus 7.5 μg of sufentanil). Next, was performed an epidural puncture in the same space. It was injected bupivacaine 0.065%, 10 ml, to facilitate the passage of the catheter. After 5 min lying down in the lateral upright position, she complained of perioral and right hemifacial paresthesia, mainly maxillary and periorbital, as well as trismus and difficulty to speak. The symptoms lasted for 30 min and resolved spontaneously. After 1 h, patient requested supplementary analgesia (12 ml of bupivacaine 0.125%) and a healthy baby girl was born. Temporary mental alterations have been described with the use of fentanyl and sufentanil in combined epidural-spinal analgesia, such as aphasia, difficulty of swallowing, mental confusion and even unconsciousness. In this patient, facial areas with paresthesia indicated by patient appear in clear association with the ophthalmic and maxillary branches of the trigeminal nerve and the occurrence of trismus and dysphagia are in association with the mandibular motor branch. The exact mechanism of rostral spread is not known, but it is speculated that after spinal drug administration, a subsequent epidural dose may reduce the intratecal space and propel the drug into the supraspinal sites.

  16. Intraarticular analgesia after arthroscopic knee surgery: comparison of neostigmine, clonidine, tenoxicam, morphine and bupivacaine.

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    Alagol, A; Calpur, O U; Usar, P Saral; Turan, N; Pamukcu, Z

    2005-11-01

    We conducted a randomized, placebo-controlled, double blinded study to compare the analgesic effects of intraarticular neostigmine, morphine, tenoxicam, clonidine and bupivacaine in 150 patients undergoing arthroscopic knee surgery. General anaesthesia protocol was same in all patients. At the end of the surgical procedure, patients were randomized into six intraarticular groups equally. Group N received 500 mug neostigmine, Group M received 2 mg morphine, Group T received 20 mg tenoxicam, Group C received 1 microg kg(-1) clonidine, Group B received 100 mg bupivacaine and Group S received saline 20 ml. Visual analog scale scores 0, 30 and 60 min and 2, 4, 6, 12, 24, 48 and 72 h, time to first analgesic need, analgesic consumption at 48 h and 72 h and side effects were noted. Demographic and operational parameters were similar in six groups. All study groups provided analgesia when compared with saline group (P<0.05). Duration of analgesia in Group N and C was longer than other groups (P<0.001). Analgesic consumptions of Group N, C and T were lower than other groups (P<0.01). Pain scores during 2 h postoperatively were lower in all study groups than the control group (P<0.001). In Group B, median pain scores were higher than Groups N and C at 0 min and 30 min postoperatively (P<0.001). Side effects were not significantly different among the six groups. We conclude that the most effective drugs that are administered intraarticularly are neostigmine and clonidine among the five drugs we studied. Tenoxicam provided longer analgesia when compared with morphine and bupivacaine, postoperatively.

  17. Compartment syndrome in a patient treated with perineural liposomal bupivacaine (Exparel).

    Science.gov (United States)

    Soberón, José Raul; Sisco-Wise, Leslie E; Dunbar, Ross M

    2016-06-01

    Acute compartment syndrome is a condition that may result in sensorimotor deficits and loss of function of the affected limb as a result of ischemic injury. It is considered a surgical emergency and prompt diagnosis and treatment results in more favorable outcomes. The use of regional anesthesia is controversial in patients at risk for compartment syndrome due to concern of its potential to mask symptoms of the condition. A 44-year-old African American male presented to surgery for open reduction and internal fixation of a comminuted distal radius fracture. As part of an off-label, investigator-initiated, and institutional review board-approved study, he received a perineural injection of liposomal bupivacaine (Exparel) around the median, ulnar, and radial nerves at the level of the proximal forearm. The following morning, his initial complaints of numbness and incisional pain progressively evolved into worsening numbness, diffuse discomfort, and pain with passive movement. A diagnosis of compartment syndrome was made and he underwent an emergency fasciotomy. The diagnosis of compartment syndrome requires a high index of suspicion and prompt treatment. This patient's changing pattern of symptoms-rather than his pain complaints alone-resulted in the diagnosis of compartment syndrome treated with emergent fasciotomy in spite of finger numbness that was initially attributed to the liposomal bupivacaine. While the use of liposomal bupivacaine did not preclude the diagnosis of compartment syndrome in our patient, it should be used with caution in patients at risk for compartment syndrome until additional data, particularly regarding block characteristics, are available.

  18. Neostigmine does not prolong the duration of analgesia produced by caudal bupivacaine in children undergoing urethroplasty

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    Bhardwaj N

    2007-01-01

    Full Text Available Context : Neostigmine extends the duration of analgesia produced by caudal bupivacaine in children. Aims : To study the effect of different doses of caudal neostigmine on the duration of postoperative analgesia. Settings and Design : A randomized, double-blind study was conducted in 120 boys aged 1-12 years undergoing urethroplasty under combined general and caudal anesthesia. Materials and Methods : Children were administered 1.875 mg/kg bupivacaine alone (Group B, or with 2, 3 or 4 µg/kg of neostigmine (groups BN 2 , BN 3 or BN 4 respectively as caudal drug (0.75 ml/kg. Children with a pain score of 4 or more (OPS and NRS postoperatively were administered rescue analgesic. Time to first analgesic and the number of analgesic doses administered in the 24h were recorded. Statistical Analysis : Parametric data were analyzed using ANOVA. Kaplan-Meier survival curves for the time to first analgesic administration were plotted and compared using log rank analysis. Chi-square test was used to analyze the incidence data. Results : The median [IQR] time to first analgesic in Group B (540 [240-1441] min was similar to that in Groups BN 2 (450 [240-720], BN 3 (600 [360-1020] and BN 4 (990 [420-1441]. Significantly more patients in Groups B (9 [34.6%] and BN 4 (13 [44.8%] required no supplemental analgesic for 24h than those in Groups BN 2 and BN 3 (4 [13.8%] and 4 [13.3%]. The number of analgesic doses required in 24h in the four groups was similar. Conclusion : Addition of neostigmine to 1.875 mg/kg of caudal bupivacaine did not prolong the analgesia following urethroplasty in children.

  19. A COMPARATIVE STUDY OF INTRATHECAL DEXMEDETOMIDINE AND FENTANYL AS ADJUVANTS TO BUPIVACAINE

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    Gollapalli Hanumanth

    2016-02-01

    Full Text Available INTRODUCTION Uncontrolled postoperative pain may produce a range of detrimental acute and chronic effects. Spinal anaesthesia provided by bupivacaine may be too short for providing postoperative analgesia. This study is conducted to evaluate the efficacy of intrathecal fentanyl and intrathecal dexmedetomidine as an adjuvant to hyperbaric bupivacaine with regards to the onset and duration of sensory and motor blockade, as well as postoperative analgesia and adverse effects. Hundred patients aged 18-55 years were randomly divided into two groups, each group consisting of 50 patients of either sex belonging to ASA class I and II posted for elective lower abdominal surgeries were given spinal anaesthesia using bupivacaine 0.5%, heavy 2.5 ml with either fentanyl 25µg (group F or 5µg of preservative free dexmedetomidine (group D. Assessment of the sensory and motor blockade were done at the end of each minute till the maximum level achieved. Measurement of blood pressure, pulse rate, respiratory rate and arterial oxygen saturation were obtained. Postoperatively the patients were observed for the duration of analgesia, time taken for complete regression of sensory blockade to S1 and time taken for complete recovery of motor power. RESULTS Our results showed a statistically highly significant prolongation of sensory and motor blockade, and postoperative analgesia in the dexmedetomidine group compared to the fentanyl group. In dexmedetomidine group four out of fifty patients, and in fentanyl group two out of fifty patients developed hypotension. In dexmedetomidine group five out of fifty patients, and in fentanyl group two out of fifty patients developed bradycardia. Incidence of pruritis is significantly high in fentanyl group.

  20. Dexmedetomidine prolongs the effect of bupivacaine in supraclavicular brachial plexus block

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    Sandhya Agarwal

    2014-01-01

    Full Text Available Background: We compared the effects of adding dexmedetomidine to a 30 ml solution of 0.325% bupivacaine in supraclavicular brachial plexus block. Onset and duration of sensory and motor block along with the duration of analgesia were the primary endpoints. Materials and Methods: Fifty patients posted for upper limb surgeries were enrolled for a prospective, randomized, double-blind, placebo-controlled trial. Patients were divided into two groups, the control group S and the study group SD. In group S (n = 25, 30 ml of 0.325% bupivacaine + 1 ml normal saline; and in group SD (n = 25, 30 ml of 0.325% bupivacaine + 1 ml (100 μg dexmedetomidine were given for supraclavicular brachial plexus block using the peripheral nerve stimulator. Onset and duration of sensory and motor blocks were assessed along with the duration of analgesia, sedation, and adverse effects, if any. Hemodynamic parameters, like heart rate (HR, systolic arterial blood pressure (SBP, and diastolic arterial blood pressure (DBP were also monitored. Results: Demographic data and surgical characteristics were comparable in both the groups. The onset times for sensory and motor blocks were significantly shorter in SD than S group (P < 0.001, while the duration of blocks was significantly longer (P < 0.001 in SD group. Except for the initial recordings (at 0, 5, 10, and 15 min, heart rate levels in group SD were significantly lower (P < 0.001. SBP and DBP levels in SD group at 15, 30, 45, 60, 90 and 120 min were significantly lower than in S group (P < 0.001. In fact, when the percentage changes in HR/SBP/DBP were compared from 0-5/0-10/0-15/0-30/0-45/0-60/0-90/0-120 min in SD with S group, they came out to be highly significant (P < 0.001 in group SD. The duration of analgesia (DOA was significantly longer in SD group than S group (P < 0.001. Except that, bradycardia was observed in one patient in the group SD, no other adverse effects were observed in either of the groups. Conclusion

  1. Effects of intravenous dexmedetomidine on hyperbaric bupivacaine spinal anesthesia: A randomized study

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    Chilkunda N Dinesh

    2014-01-01

    Full Text Available Background and Objectives: The present study was designed to evaluate the effect of intravenous dexmedetomidine on spinal anesthesia with 0.5% of hyperbaric bupivacaine. Materials and Methods: One hundred American Society of Anesthesiologists (ASA physical status I/II patients undergoing elective surgeries under spinal anesthesia were randomized into two groups of 50 each. Immediately after subarachnoid block with 3 ml of 0.5% hyperbaric bupivacaine, patients in group D received a loading dose of 1 μg/kg of dexmedetomidine intravenously by infusion pump over 10 min followed by a maintenance dose of 0.5 μg/kg/h till the end of surgery, whereas patients in group C received an equivalent quantity of normal saline. Results: The time taken for regression of motor blockade to modified Bromage scale 0 was significantly prolonged in group D (220.7 ± 16.5 min compared to group C (131 ± 10.5 min (P < 0.001. The level of sensory block was higher in group D (T 6.88 ± 1.1 than group C (T 7.66 ± 0.8 (P < 0.001. The duration for two-dermatomal regression of sensory blockade (137.4 ± 10.9 min vs. 102.8 ± 14.8 min and the duration of sensory block (269.8 ± 20.7 min vs. 169.2 ± 12.1 min were significantly prolonged in group D compared to group C (P < 0.001. Intraoperative Ramsay sedation scores were higher in group D (4.4 ± 0.7 compared to group C (2 ± 0.1 (P < 0.001. Higher proportion of patients in group D had bradycardia (33% vs. 4% (P < 0.001, as compared to group C. The 24-h mean analgesic requirement was less and the time to first request for postoperative analgesic was prolonged in group D than in group C (P < 0.001. Conclusion: Intravenous dexmedetomidine significantly prolongs the duration of sensory and motor block of bupivacaine spinal anesthesia. The incidence of bradycardia is significantly higher when intravenous dexmedetomidine is used as an adjuvant to bupivacaine spinal anesthesia. Dexmedetomidine provides excellent intraoperative

  2. Combined Spinal Epidural versus Epidural Sufentanil and Bupivacaine in Labour (Clinical and Histological comparative Study

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    Nagia M. Abd El Moeti, *Zinab B. Youssef, *Soaad S. Abd El Aal

    2006-12-01

    Full Text Available Introduction:- Regional analgesia provides excellent pain relif in labour. This study was designed to compare combined spinal eqidural (CSE versus epidural block using a narcotic (sufentanil and local anaesthetic bupivacaine regarding their effects on progress of labour, method of delivery, pain relif, side effects and neonatal outcome. Patients and Methods :-Forty pregnant women ASA I and II were enrolled in this study. The women were randomly allocated to receive either CSE or epidural ( 20 patient of each . In CSE group analgesia was initiated with 10ug sufentanil with 2mg bupivacaine. In epidural group 10ml bupivacaine 0.125%.and 10ug sufentanil injected epidurally. In both groups the continuous infusion of 0.83% bupivacaine with 0.33ug/ml sufentanil at 10ml/hr adjusted as required. Maternal haemodynamics, analgesia characteristics VAPS, degree of motor block, were measured. Duration of labour, cervical dilation, maternal satisfaction and mode of delivery were assessed. Foetal outcome was assessed by 1 and 5 min. Apgar score and umbilical venous blood gases. Maternal and neonatal side effects were observed. The experimental study was done on 30 rats divided into 3 groups 10 rats of each. Control group (A injected intrathecally with saline, group (B injected intrathecally with 1.5ug/kg sufentanil (low dose, and group (C injected intrathecally with 7.5ug/kg sufentanil (high dose, the pervious doses were injected every 2hr. for 3 times then the spinal cord was obtained and stained for histological evaluation. Results:- The clinical study showed that no difference between the 2 groups for the degree of motor block or adequacy of analgesia, mode of delivery and Foetal outcome. The onset of analgesia was faster with CSE technique, more patient satisfaction and more pruritis. The histological results revealed that no detectable significant neurotoxic changes with the use of small dose of intrathecal sufentanil but mild changes occurred with high

  3. Enhanced expression of WD repeat-containing protein 35 via nuclear factor-kappa B activation in bupivacaine-treated Neuro2a cells.

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    Lei Huang

    Full Text Available The family of WD repeat proteins comprises a large number of proteins and is involved in a wide variety of cellular processes such as signal transduction, cell growth, proliferation, and apoptosis. Bupivacaine is a sodium channel blocker administered for local infiltration, nerve block, epidural, and intrathecal anesthesia. Recently, we reported that bupivacaine induces reactive oxygen species (ROS generation and p38 mitogen-activated protein kinase (MAPK activation, resulting in an increase in the expression of WD repeat-containing protein 35 (WDR35 in mouse neuroblastoma Neuro2a cells. It has been shown that ROS activate MAPK through phosphorylation, followed by activation of nuclear factor-kappa B (NF-κB and activator protein 1 (AP-1. The present study was undertaken to test whether NF-κB and c-Jun/AP-1 are involved in bupivacaine-induced WDR35 expression in Neuro2a cells. Bupivacaine activated both NF-κB and c-Jun in Neuro2a cells. APDC, an NF-κB inhibitor, attenuated the increase in NF-κB activity and WDR35 protein expression in bupivacaine-treated Neuro2a cells. GW9662, a selective peroxisome proliferator-activated receptor-γ antagonist, enhanced the increase in NF-κB activity and WDR35 protein expression in bupivacaine-treated Neuro2a cells. In contrast, c-Jun siRNA did not inhibit the bupivacaine-induced increase in WDR35 mRNA expression. These results indicate that bupivacaine induces the activation of transcription factors NF-κB and c-Jun/AP-1 in Neuro2a cells, while activation of NF-κB is involved in bupivacaine-induced increases in WDR35 expression.

  4. Preparation of bupivacaine-loaded poly(epsilon-caprolactone) microspheres by spray drying: drug release studies and biocompatibility.

    Science.gov (United States)

    Blanco, M D; Bernardo, M V; Sastre, R L; Olmo, R; Muñiz, E; Teijón, J M

    2003-03-01

    Poly(epsilon-caprolactone) microspheres containing bupivacaine were prepared by the spray-drying process. The average size of drug loaded microspheres was less than 3 microm in diameter, and the percentage of entrapment efficiency was 91 +/- 3%. In vitro drug release kinetic in phosphate buffer at 37 degrees C showed a hyperbolic profile, with a burst-effect during the first hour. Subcutaneous injection of bupivacaine-loaded microspheres in the back of rats caused an increase in drug concentration in plasma. Maximum bupivacaine concentration in plasma was 237 +/- 58 ng/ml at 105 h, and drug was detected in plasma for 16 days. The half-life time of the drug was increased by more than 125 times with regard to that of the drug administered in a solution by intraperitoneal injection. After 30 days of injection, a mass formed by microspheres surrounded by a thin fibrous capsule was observed. Small blood vessels and multinucleate foreign body giant cells with macrophagic function around microspheres were detected. After 60 days of injection a subcutaneous mass was also observed, which was formed of more degraded dispersed microspheres in conjunctive tissue, which had a normal structure. Thus, bupivacaine-loaded poly(epsilon-caprolactone) microspheres could be considered as a device to be used in the treatment of severe pain that is not responsive to opioids for example in cancer-related syndromes or in intractable herpetic neuralgia.

  5. Acute Post Mastectomy Pain: A Double Blind Randomised Controlled Trial: Intravenous Tramadol Vs Bupivacaine Irrigation through Surgical Drains

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    Anjum S KhanJoad

    2008-01-01

    Both groups had good pain relief. The T group had significantly more nausea (P< 0.007. The T group patients had a higher incidence of vomiting, catheterisation and delayed oral intake, but this was not significant statistically. Bupivacaine administered through the surgical drain offered equivalent postoperative pain relief to intravenous tramadol, with significantly less nausea.

  6. The effect of a single dose of bupivacaine on donor site pain after anterior iliac crest bone harvesting.

    Science.gov (United States)

    Barkhuysen, R; Meijer, G J; Soehardi, A; Merkx, M A W; Borstlap, W A; Bergé, S J; Bronkhorst, E M; Hoppenreijs, T J M

    2010-03-01

    Transplants from the anterior iliac crest are used for most reconstructive procedures in cranio-maxillofacial surgery. The advantages are easy accessibility, the ability to work in two teams and the amount of corticocancellous bone available; disadvantages are postoperative pain and gait disturbances. To reduce donor-site pain, the effect of a single dose of bupivacaine (10 cc of 2.5mg/cc with 1:80.000 epinephrine) was studied. 200 consecutive patients, who underwent anterior iliac crest bone harvesting for reconstructive procedures, were randomly divided into those receiving bupivacaine and those not. They completed a standardized questionnaire. Patients scored the intensity of the pain and difficulties walking at different times with a visual analogue scale. They recorded analgesics used. 98 questionnaires were eligible for analysis. No differences between the bupivacaine and the control group were detected for postoperative pain and gait disturbance. There is no support for administration of a single dose of bupivacaine to reduce pain in the first postoperative days. The surface area of the removed bone had a significant influence on pain and walking; pain is related to the local osseous damage or periosteal stripping rather than to the length of incision or the operation time.

  7. Blood pressure and heart rate during orthostatic stress and walking with continuous postoperative thoracic epidural bupivacaine/morphine

    DEFF Research Database (Denmark)

    Møiniche, S; Hjortsø, N C; Blemmer, T

    1993-01-01

    at 24 h) or in number of episodes of dizziness, nausea or vomiting during rest or mobilisation. These results do not support the common belief that low-dose thoracic epidural bupivacaine/morphine may prevent ambulation due to sympathetic blockade or to impaired cardiovascular adaptation to the upright...

  8. Correlation of bupivacaine 0.5% dose and conversion from spinal anesthesia to general anesthesia in cesarean sections

    NARCIS (Netherlands)

    Seljogi, D; Wolff, A P; Scheffer, G J; van Geffen, G J; Bruhn, J

    2016-01-01

    BACKGROUND: Failed spinal anesthesia for cesarean sections may require conversion to general anesthesia. The aim of this study was to determine whether the administered spinal bupivacaine dose for performing a cesarean section under spinal anesthesia was related to the conversion rate to general ane

  9. The safety of liposome bupivacaine 2 years post-launch: a look back and a look forward.

    Science.gov (United States)

    Viscusi, Eugene R

    2015-01-01

    The need for better post-surgical pain management continues to be unmet, despite clinicians' awareness and concern for many years. Opioids remain the standard of care because of their analgesic efficacy; however, opioid use is often associated with adverse effects and poor patient outcomes. Multimodal analgesic regimens have recently been endorsed as a way to provide adequate post-surgical pain control while reducing opioid consumption. Liposome bupivacaine is a liposomal formulation of bupivacaine indicated for a single administration into the surgical site. Based on the available clinical trial data compiled to date, as well as the author's review of publicly available post-marketing safety information, liposome bupivacaine may be a viable addition to currently available therapeutic options for post-surgical analgesia while reducing potential risks associated with use of opioid analgesics, and may represent a useful addition to the multimodal analgesic modalities currently used for post-operative pain management. The potential for its use in other areas is also being investigated. The purpose of this review is to examine the currently available post-marketing safety information on liposome bupivacaine.

  10. Anesthetic effects of adding intrathecal neostigmine or magnesium sulphate to bupivacaine in patients under lower extremities surgeries

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    Seyed Hamid Reza Faiz

    2012-01-01

    Full Text Available Background: Regional anesthesia is widely used to perform different surgical procedures including those performed on the extremities. In this study, the anesthetic effects of adding intrathecal neostigmine or magnesium sulphate to bupivacaine in patients under lower extremities surgeries were assessed. Materials and Methods: In this double-blind randomized clinical trial, 90 patients, candidate for lower extremities surgeries in a training hospital, were recruited. The patients with ASA class I and II aging from 20 to 65 years between 2009 and 2010 were evaluated. The selected patients were randomly assigned to receive either bupivacaine alone (Group A, n=30, or bupivacaine plus magnesium sulphate 50% (Group B, n=30, or bupivacaine plus neostigmine (Group C, n=30. Then sensory and motor onset and complete block and the time of recovery were measured. Results: The sensory block onset time were 3.03 ± 0.981 in group A, 3.90 ± 2.71 in group B and 3.7 ± 1.08 in group C and knee flexion time were not significantly different among the three groups (P > 0.05, whereas the time to complete motor block was significantly longer in group C and motor recovery time were significantly different between groups (P=0.001. Conclusions: According to the obtained results, it may be concluded that magnesium sulphate is a safe and effective adjuvant for increasing the onset time of motor block.

  11. Comparison of Spinal Block Levels between Laboring and Nonlaboring Parturients Using Combined Spinal Epidural Technique with Intrathecal Plain Bupivacaine

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    Yu-Ying Tang

    2012-01-01

    Full Text Available Background. It was suggested that labor may influence the spread of intrathecal bupivacaine using combined spinal epidural (CSE technique. However, no previous studies investigated this proposition. We designed this study to investigate the spinal block characteristics of plain bupivacaine between nonlaboring and laboring parturients using CSE technique. Methods. Twenty-five nonlaboring (Group NL and twenty-five laboring parturients (Group L undergoing cesarean delivery were enrolled. Following identification of the epidural space at the L3-4 interspace, plain bupivacaine 10 mg was administered intrathecally using CSE technique. The level of sensory block, degree of motor block, and hemodynamic changes were assessed. Results. The baseline systolic blood pressure (SBP and the maximal decrease of SBP in Group L were significantly higher than those in Group NL (=0.002 and =0.03, resp.. The median sensory level tested by cold stimulation was T6 for Group NL and T5 for Group L (=0.46. The median sensory level tested by pinprick was T7 for both groups (=0.35. The degree of motor block was comparable between the two groups (=0.85. Conclusion. We did not detect significant differences in the sensory block levels between laboring and nonlaboring parturients using CSE technique with intrathecal plain bupivacaine.

  12. Experimental studies on the accumulation of /sup 99m/Tc-MDP in the bupivacaine hydrochloride induced myopathy

    Energy Technology Data Exchange (ETDEWEB)

    Sone, Shinsuke

    1989-02-01

    It has recently been demonstrated that several /sup 99m/Tc-labeled phosphate compounds accumulate in skeletal muscle in patients with myopathies including Duchenne muscular dystrophy (DMD). However, the mechanism by which these compounds accumulate in skeletal muscles is unknown. In order to analyze the mechanisms of tracer-localization in skeletal muscles of myopathies, the uptake of /sup 99m/Tc-methylendiphosphonate (/sup 99m/Tc-MDP) by muscles examined in rats treated by intramuscular injection of a local anesthetic, bupivacaine. At the same time, the histological and biochemical changes of the injured muscles were studied, and findings obtained were correlated with the procedure of /sup 99m/Tc-MDP uptake. Intramuscular injection of bupivacaine resulted in markedly increased uptake of /sup 99m/Tc-MDP in the injected muscle at 12 and 24 hours after injection. The plasma creatine phosphokinase (CK) concentration increased 2-3 folds during the period from 3 to 24 hours after bupivacaine injection. Four days following injection, the CK isozyme MB activity in muscle increased. Twenty hours after injection of bupivacaine, changes such as hypercontraction and disruptin of myofibrils, Z-band lysis, and swelling of mitochondria occurred. Four days after the injection, myoblasts and myotubes were found in the damaged areas of the muscle. These results show that the increased muscle uptake of /sup 99m/Tc-MDP reflects the early degenerative changes of skeletal muscle.

  13. Bupivacaine in microcapsules prolongs analgesia after subcutaneous infiltration in humans: a dose-finding study

    DEFF Research Database (Denmark)

    Pedersen, Juri L; Lillesø, Jesper; Hammer, Niels A

    2004-01-01

    In this study, we examined the onset and duration of local analgesic effects of bupivacaine incorporated into biodegradable microcapsules (extended-duration local anesthetic; EDLA) administered as subcutaneous infiltrations in different doses in humans. In 18 volunteers, the skin on the medial calf...... was infiltrated with 10 mL of EDLA, and the opposite calf was infiltrated with 10 mL of aqueous bupivacaine (5.0 mg/mL) in a double-blinded, randomized manner. Three different concentrations of EDLA were tested (6.25, 12.5, and 25 mg/mL), with 6 subjects in each group. Pain responses to mechanical and heat...... stimuli and sensory thresholds (touch, warm, and cold detection thresholds) were examined by von Frey hairs and contact thermodes. Assessments were made before and 2, 4, 6, 8, 24, 48, 72, 96, and 168 h after the injections. Safety evaluations were performed daily for the first week and at 2 wk, 6 wk...

  14. Efficacy of two doses of tramadol versus bupivacaine in perioperative caudal analgesia in adult hemorrhoidectomy

    Science.gov (United States)

    Farag, Hanan M.; Esmat, Ibrahim M.

    2016-01-01

    Background: The study was conducted to evaluate the perioperative analgesic efficacy of the two doses of caudally administered tramadol versus bupivacaine in adult hemorrhoidectomy. Patients and Methods: A total of 90 patients, aged 20-50 years, undergoing hemorrhoidectomy were randomly scheduled to receive bupivacaine 0.25% in 20 ml (Group B; n = 30), tramadol 1 mg/kg in 20 ml (Group T1; n = 30), tramadol 2 mg/kg in 20 ml (Group T2; n = 30) through caudal route after induction of general anesthesia. Postoperative pain was assessed every hour until the visual analog scale was 6, which is 1st time for rescue analgesia. Postoperative sedation, hemodynamic changes, serum cortisol, and epinephrine levels and incidence of side effects were also evaluated. Results: Duration of analgesia was longer in Group T2 (20 [1.14] h] compared with the Group B (7 [1.2] h) or Group T1 (12 [0.75] h); all P < 0.001. There were no significant hemodynamic changes. There were not incidences of side effects. Conclusion: Caudal tramadol 2 mg/kg provided a longer duration of postoperative analgesia with rapid onset and no incidence of complications or adverse effects in adult hemorrhoidectomy. PMID:27051362

  15. Comparison of the efficacy of intrathecally administered levobupivacaine and bupivacaine in pre-eclamptic pregnant women

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    Zeynep Baysal Yıldırım

    2011-03-01

    Full Text Available The aim of this study was to compare the efficacy and side effects of levobupivacaine and bupivacaine in pre-eclamptic patients that will undergo caesarean section by spinal anesthesia.Materials and methods: Preeclamptic, 18-45 years-old patients that will undergo a caesarean section were included in the study in a prospective randomized manner. They were separated into two groups: Group B, intrathecally received 2 mL 0.5% bupivacaine (10 mg, while Group L intrathecally received 2 mL 0.5% levobupivacaine (10 mg. Blood pressure and heart rates of the patients were measured and recorded at 3, 6, 9, 12, 15th minutes and thereafter, every 5 minutes during operation. The evaluations were done through the comparison of patient’s and surgeon’s satisfaction between the groups. Visual analog score (VAS was used for comparison.Results: Systolic arterial pressure values at 3, 15, 35 and 40th minutes in Group B were significantly lower than those in Group R (p0.05.Conclusion: Intrathecal levobupivacaine for spinal anesthesia ensured a more stable hemodynamics but both local anesthesia enabled a sufficient and adequate surgical anesthesia in pre-eclamptic patients.

  16. Syndrome coronarien aigue suite à une injection accidentelle intraveineuse de Bupivacaine

    Science.gov (United States)

    Koita, Siriman Abdoulaye; Bouhabba, Najib; Salaheddine, Fjouji; Bensghir, Mustapha; Charki, Haimeur

    2015-01-01

    Les erreurs médicamenteuses constituent une complication très redoutable en anesthésie. La fréquence des erreurs médicamenteuses par administration serait de l'ordre 1/10 000 à 1/1000. Nous rapportons un cas d'injection accidentelle de bupivacaine en intraveineuse directe. Il s'agissait d'un jeune patient classé ASA I qui était prévu pour cure chirurgicale d'une hydrocèle unilatérale sous rachianesthésie. Une injection de 12,5 mg de bupivacaine et 25 µg de fentanyl étaient injectés après un reflux net du liquide céphalorachidien sans incident. Après installation de la rachianesthésie, le début de l'intervention était autorisé sans incidents. Une sédation de confort était décidée. Juste après apparaissait des troubles de rythme à type tachycardie ventriculaire avec une élévation de taux de troponines en post opératoire. L’évolution était marquée par une normalisation de la troponine au troisième jour post opératoire et sorti de l'hôpital au cinquième jour. PMID:26889325

  17. Efficacy of Analgesic Effects of Low Dose Intrathecal Clonidine as Adjuvant to Bupivacaine

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    B S Sethi

    2007-01-01

    The maximum dose of clonidine used was70 μg. The meantime from injection to regression of the level of sensory analgesia by two segments was longer in the Clonidine group than in Control group (P< 0.001. The duration of motor blockade was longer in Clonidine group than in Control group (P< 0.05. There was also a significant difference in the duration of analgesia between the two groups (P< 0.001. The rescue analgesia was required earlier in the Control group(mean 223 min compared to the Clonidine group(mean614 min. The number of injections of diclofenacin24 hours was higher for Control group (mean2.66 than Clonidine group (mean 1.16 (P < 0.05. The patients in the Clonidine group had a significant fall in mean arterial pressure and heart rate and were more sedated than those in Control group, however, no therapeutic interventions needed. We concluded that addition of clonidine to bupivacaine in the dose of 1μg.kg -1 significantly increases the duration of spinal analgesia as compared to bupivacaine alone with clinically insignificant influence on haemodynamic parameters and level of sedation.

  18. Minimum effective concentration of bupivacaine for axillary brachial plexus block guided by ultrasound

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    Alexandre Takeda

    2015-06-01

    Full Text Available INTRODUCTION: The use of ultrasound in regional anesthesia allows reducing the dose of local anesthetic used for peripheral nerve block. The present study was performed to determine the minimum effective concentration (MEC90 of bupivacaine for axillary brachial plexus block. METHODS: Patients undergoing hand surgery were recruited. To estimate the MEC90, a sequential up-down biased coin method of allocation was used. The bupivacaine dose was 5 mL for each nerve (radial, ulnar, median, and musculocutaneous. The initial concentration was 0.35%. This concentration was changed by 0.05% depending on the previous block; a blockade failure resulted in increased concentration for the next patient; in case of success, the next patient could receive or reduction (0.1 probability or the same concentration (0.9 probability. Surgical anesthesia was defined as driving force ≤2 according to the modified Bromage scale, lack of thermal sensitivity and response to pinprick. Postoperative analgesia was assessed in the recovery room with numeric pain scale and the amount of drugs used within 4 h after the blockade. RESULTS: MEC90 was 0.241% [R 2: 0.978, confidence interval: 0.20-0.34%]. No patient, with successful block, reported pain after 4 h. CONCLUSION: This study demonstrated that ultrasound guided axillary brachial plexus block can be performed with the use of low concentration of local anesthetics, increasing the safety of the procedure. Further studies should be conducted to assess blockade duration at low concentrations.

  19. A COMPARATIVE STUDY OF THE EFFECT OF EPIDURAL BUPIVACAINE (0.125% VERSUS EPIDURAL BUPIVACAINE (0.125% AND BUTORPHANOL (2mg FOR POST-OPERATIVE PAIN RELIEF IN LOWER ABDOMINAL AND LOWER LIMB SURGERIES

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    Krishna

    2014-08-01

    Full Text Available BACKGROUND: Postoperative pain gives rise to various physiological and psychological phenomenons. Epidural analgesia with combination of local anesthetics and opioids provides better pain relief than local anesthetics alone in the postoperative period. Epidural opioids acting through the spinal cord receptors improve the quality and duration of analgesia along with dose-sparing effect with the local anesthetics. AIMS: The study was conducted to evaluate the efficacy of addition of opioids to local anesthetics for postoperative pain relief. METHODS: Fifty patients of American society of anesthesiology grade and physical status undergoing lower abdominal surgeries & lower limb surgeries in narayana general hospital, Nellore, were divided into two groups B and BB. Group B was given 0.125% bupivacaine alone and Group BB was given 0.125% bupivacaine plus 2mg of butorphanol postoperatively when the patients first complained of pain. Onset of Analgesia, duration of analgesia, visual analog scores and side effects were compared. RESULTS: The onset of analgesia in group B patients (10ml of 0.125% Bupivacaine was varied from 4-8 minutes (mean 5.2 minutes and duration of analgesia lasted for 2-4 hours (mean 2.98(p<0.0001 where as in group BB patients (2mg butorphanol + 0.125% bupivacaine the onset was 2-4 minutes (mean 2.69 and duration of analgesia lasted for 6-8 hours (mean 6.98 (p<0.0001.The Visual Analog Scores of Group B were in the range of 7 to 9 and Group BB were in the range of 5 to 6 (P<0.0001. CONCLUSION: This study concludes that addition of butorphanol (2mg to bupivacaine (0.125% gives more effective and prolonged duration of postoperative pain relief when administered epidurally, without significant side effects.

  20. Clinical parameters of the local anesthetic effects of bupivacaine applied with and without a vasoconstrictor in oral implantology

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    Duka Miloš

    2007-01-01

    Full Text Available Background/Aim. Bupivacaine (Marcaine®, homologue of mepivacaine, chemically related to lidocaine, is used as a local anesthetic for local infiltration, peripheral nerve block, retrobulbar block, symphathetic block, and caudal and epidural anesthesia. The aim of this investigation was to determine and to compare clinical parameters of the local anesthetic effects of bupivacaine applied with and without a vasoconstrictor. Methods. This investigation included a total of 30 randomly selected patients, who ranged in age from 30−60 years, with partial or total anodontia in the molar region of the mandible. These patients with total or partial edentulous molar part of the mandible, scheduled for dental implantation placement, were asked to participate in the study. In the first phase of the investigation, the patients were subjected to local anesthesia with 3.5 cm3 of 0.5% bupivacaine with a vasoconstrictor (adrenalin, 1: 200 000 in the right side of the mandible. After administering local anesthesia, the placement of blade, cylindrical, transdental (B.C.T. implants was performed. In the second stage of the investigation, in 7−10 days period after the first oral surgery, the patients were subjected to local anesthesia with 3.5 cm3 of 0.5% bupivacaine, but without a vasoconstrictor, in the left side of the mandible. After administering local anesthesia, the placement of B.C.T. implants was performed. During the performance of both oral surgery procedures, the following clinical parameters of the local anesthetic effects were monitored: latent period, duration and the potency of anesthesia, and the evaluation of the postoperative pain level. Results. The latent period under local anesthesia with 3.5 cm3 of 0.5% bupivacaine and vasoconstrictor was statistically significantly shorter than without vasoconstrictor. The duration of local anesthesia was longer without vasoconstrictor. There was no difference in the potency of anesthesia with or without a

  1. Comparison of bupivacaine, ropivacaine and levobupivacaine with sufentanil for patient-controlled epidural analgesia during labor: a randomized clinical trial

    Institute of Scientific and Technical Information of China (English)

    WANG Li-zhong; CHANG Xiang-yang; LIU Xia; HU Xiao-xia; TANG Bei-lei

    2010-01-01

    Background Ropivacaine and levobupivacaine have been introduced into obstetric analgesic practice with the proposed advantages of causing less motor block and toxicity compared with bupivacaine. However, it is still controversial whether both anesthetics are associated with any clinical benefit relative to bupivacaine for labor analgesia. This study aimed to compare the analgesic efficacy, motor block and side effects of bupivacaine, ropivacaine and levobupivacaine at lower concentrations for patient-controlled epidural labor analgesia. Methods Four hundred and fifty nulliparous parturients were enrolled in this randomized clinical trial. A concentration of 0.05%, 0.075%, 0.1%, 0.125% or 0.15% of either bupivacaine (Group B), ropivacaine (Group R) or levobupivacaine (Group L) with sufentanil 0.5 μg/ml was epidurally administered by patient-controlled analgesia mode. Effective analgesia was defined as a visual analogue scale score was ≤30 mm. The relative median potency for each local anesthetic was calculated using a probit regression model. Parturients demographics, sensory and motor blockade, obstetric data, maternal side effects, hourly volumes of local anesthetic used, and others were also noted. Results There were no significant differences among groups in the numbers of effective analgesia, pain scores, hourly local anesthetic amount used, sensory and motor blockade, labor duration and mode of delivery, side effects and maternal satisfaction (P >0.05). The relative median potency was bupivacaine/ropivacaine: 0.828 (0.602-1.091), bupivacaine/levobupivacaine: 0.845 (0.617-1.12), ropivacaine/levobupivacaine: 1.021 (0.774-1.354), respectively. However, a significantly less number of effective analgesia and higher hourly local anesthetic use were observed in the concentration of 0.05% than those of ≥0.1% within each group (P<0.05). Conclusions Using patient-controlled epidural analgesia, lower concentrations of bupivacaine, ropivacaine and levobupivacaine

  2. Efficacy and safety of 0.5% levobupivacaine versus 0.5% bupivacaine for peribulbar anesthesia

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    Pacella E

    2013-05-01

    Full Text Available Elena Pacella,1 Fernanda Pacella,1 Fabiana Troisi,2 Domenico Dell'Edera,3 Paolo Tuchetti,4 Tommaso Lenzi,1 Saul Collini21Department of Sense Organs, Faculty of Medicine and Dentistry, Rome, 2Department of Medical Surgical Sciences and Translational Medicine Sapienza, Faculty of Medicine and Psychology, Roma, University of Rome, Rome, 3Unit of Cytogenetic and Molecular Genetics, Madonna delle Grazie Hospital, Matera, 4National Institute for Health, Migration and Poverty, Rome, ItalyBackground: This randomized double-blind study examined the use of a new anesthetic agent, levobupivacaine 0.5%, which is the S(−-enantiomer of a racemic mixture of bupivacaine, for peribulbar anesthesia and compared it with racemic bupivacaine 0.5% alone or in combination with hyaluronidase 10 IU/mL.Methods: A total of 160 patients undergoing ophthalmic surgery were randomized into four groups (n = 40 each to receive inferotemporal peribulbar injection of levobupivacaine 0.5% (group L, racemic bupivacaine 0.5% (group B, levobupivacaine + hyaluronidase 10 IU/mL (group LH, or racemic bupivacaine + hyaluronidase 10 IU/mL (group BH by two anesthetists and two ophthalmologists in a ratio of 25% each. Ocular akinesia and orbicularis oculi function were evaluated using a three-point scale; a value < 5 points was considered as requiring surgery, and movements were re-evaluated the day following surgery to confirm regression of the block.Results: The time to onset (12 ± 2.6 minutes versus 13 ± 2.8 minutes and duration of anesthesia (185 ± 33.2 minutes versus 188 ± 35.7 minutes were similar between groups L and B. Complete akinesia (score 0 was obtained more frequently when hyaluronidase was used in addition to the anesthetic, with occurrences of 72.5% versus 57.5% in group LH versus L, respectively, and 67.5% versus 45% in group BH versus B. Moderate hypotension (<30% of baseline was observed in four patients (10% in group L, two (5.0% in group B, one (2.5% in group LH

  3. Analgesic Efficacy of Nephrostomy Tract inFiltration of Bupivacaine and Ketamine after Tubeless Percutaneous Nephrolithotomy: A Prospective Randomized Trial

    Science.gov (United States)

    Shariat Moharari, Reza; Valizade, Ali; Najafi, Atabak; Etezadi, Farhad; Hosseini, Seyed Reza; Khashayar, Patricia; Khajavi, Mohammad Reza; Mojtahedzadeh, Mojtaba

    2016-01-01

    Background: Recently, the use of ketamine as a systemic and local analgesic drug in reducing post-operative pain is studied more frequently. Objectives: The aim of the present study was to assess the analgesic efficacy of IV ketamine injection inaddition to nephrostomy tract infiltration of ketamine-bupivacaine on postoperative pain relief after tubeless percutaneous nephrolithotomy (PCNL). Patients and Methods: Patients (n = 100), with renal stone who were candidates for PCNL were randomized to five groups with 20 cases in each: Group C, 10 mL of saline solution was infiltrated into the nephrostomy tract; Group B, 10 mL of 0.25% bupivacaine was infiltrated into the nephrostomy tract; Group BK1, 10 mL of 0.25% bupivacaine plus 0.5 mg/kg ketamine was infiltrated into the nephrostomy tract; Group BK2, 10 mL of 0.25% bupivacaine plus 1.5 mg/kg ketamine was infiltrated into the nephrostomy tract; Group K, 10 mL of saline solution containing 0.5 mg/kg ketamine was intravenously administered. Post-operative pain scores were compared between groups as the primary objective. Comparison of Sedation Scores, rescue analgesic consumption, time to the first rescue analgesics administration, hemodynamic and SpO2 values were regarded as the secondary objective. Results: Mean VAS scores in the first 30 min and total analgesic consumption in the first 24 h of post-operative period were significantly lower in groups BK1 and BK2 in comparison with the other groups (P ketamine plus bupivacaine provides superior analgesic effects in PCNL surgery compared with other methods. PMID:27642334

  4. In vitro characterization and in vivo analgesic and anti-allodynic activity of PLGA-bupivacaine nanoparticles

    Energy Technology Data Exchange (ETDEWEB)

    Garcia, Xavier, E-mail: xavier.garcia@ipsen.com; Escribano, Elvira; Domenech, Josep; Queralt, Josep; Freixes, Joan [University of Barcelona, Department of Pharmacy and Pharmaceutical Technology, Biopharmaceuticals and Pharmacokinetics Unit, School of Pharmacy (Spain)

    2011-05-15

    An injectable controlled release system containing local anesthetics able to provide long-lasting analgesia in nociceptive and neuropathic pain could have a marked impact in pain management. In order to address this issue, bupivacaine, a widely used local anesthetic, has been nanoencapsulated using poly(lactic-co-glycolic acid) from an oil-in-water emulsion by the solvent evaporation technique. Nanoparticles were evaluated in vitro studying their drug release mechanism by fitting different model equations, and in vivo by testing its analgesic and anti-allodynic activity in front of heat-induced nociceptive pain and sciatic nerve chronic constriction injury in rats, respectively. The particle size of the PLGA nanoparticles obtained was of 453 {+-} 29 nm, the encapsulation efficiency, drug loading, and burst effect at 30 min were 82.10 {+-} 0.001, 45.06 {+-} 0.001, and 4.6 {+-} 0.6%, respectively. A prolonged release of the drug in comparison to bupivacaine solution was seen. The mean dissolution time (MDT) obtained for nanoparticles was relatively long (9.44 {+-} 0.56 h) proving the sustained release process, while the dissolution efficiency (DE) (84.10 {+-} 1.01%) was similar to the maximum percentage of drug released. Korsmeyer-Peppas was the best model that fitted our release data. A non-Fickian mechanism was concluded to be involved in the release of bupivacaine from the nanoparticles, taking into account the value of the diffusional exponent obtained (n = 0.95). After local infiltration in the rat, the antinociceptive and anti-allodynic activity of the nanoencapsulated bupivacaine was longer lasting than that of bupivacaine solution. An increase in the values of the area under the curve (AUC) of the antinociceptive and anti-allodynic effect versus time of 67 and 36%, respectively, was observed when the drug was encapsulated.

  5. In vitro characterization and in vivo analgesic and anti-allodynic activity of PLGA-bupivacaine nanoparticles

    Science.gov (United States)

    Garcia, Xavier; Escribano, Elvira; Domenech, Josep; Queralt, Josep; Freixes, Joan

    2011-05-01

    An injectable controlled release system containing local anesthetics able to provide long-lasting analgesia in nociceptive and neuropathic pain could have a marked impact in pain management. In order to address this issue, bupivacaine, a widely used local anesthetic, has been nanoencapsulated using poly(lactic-co-glycolic acid) from an oil-in-water emulsion by the solvent evaporation technique. Nanoparticles were evaluated in vitro studying their drug release mechanism by fitting different model equations, and in vivo by testing its analgesic and anti-allodynic activity in front of heat-induced nociceptive pain and sciatic nerve chronic constriction injury in rats, respectively. The particle size of the PLGA nanoparticles obtained was of 453 ± 29 nm, the encapsulation efficiency, drug loading, and burst effect at 30 min were 82.10 ± 0.001, 45.06 ± 0.001, and 4.6 ± 0.6%, respectively. A prolonged release of the drug in comparison to bupivacaine solution was seen. The mean dissolution time (MDT) obtained for nanoparticles was relatively long (9.44 ± 0.56 h) proving the sustained release process, while the dissolution efficiency (DE) (84.10 ± 1.01%) was similar to the maximum percentage of drug released. Korsmeyer-Peppas was the best model that fitted our release data. A non-Fickian mechanism was concluded to be involved in the release of bupivacaine from the nanoparticles, taking into account the value of the diffusional exponent obtained ( n = 0.95). After local infiltration in the rat, the antinociceptive and anti-allodynic activity of the nanoencapsulated bupivacaine was longer lasting than that of bupivacaine solution. An increase in the values of the area under the curve (AUC) of the antinociceptive and anti-allodynic effect versus time of 67 and 36%, respectively, was observed when the drug was encapsulated.

  6. Intrathecal clonidine with hyperbaric bupivacaine administered as a mixture and sequentially in caesarean section: A randomised controlled study

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    Prachee Sachan

    2014-01-01

    Full Text Available Background and Aims: Mixing adjuvants with hyperbaric bupivacaine in a single syringe before injecting the drugs intrathecally is an age old practice. In doing so, the density of the hyperbaric solution and also of the adjuvant drugs may be altered, thus affecting the spread of drugs. Administering local anaesthetic and the adjuvants separately may minimise the effect of the changes in densities. We aimed to compare block characteristics, intraoperative haemodynamics and post-operative pain relief in parturients undergoing caesarean section (CS after administering hyperbaric bupivacaine and clonidine intrathecally as a mixture and sequentially. Methods: In this single-blind prospective randomised controlled study at a tertiary care centre from 2010 to 12, 60 full-term parturients scheduled for elective CSs were divided into two groups on the basis of technique of intrathecal drug administration. Group M received mixture of clonidine (75 mcg and hyperbaric bupivacaine 0.5% (10 mg intrathecally, whereas Group B received clonidine (75 mcg followed by hyperbaric bupivacaine 0.5% (10 mg through separate syringes. Observational descriptive statistics, analysis of variance test, Wilcoxon test and Chi-square test were used as applicable. Results: Duration of analgesia was significantly longer in Group B (474.33 ± 20.79 min in which the drug was given sequentially than in Group M (337 ± 18.22 min. Furthermore, the time to achieve highest sensory block and complete motor block was significantly less in Group B without any major haemodynamic instability and neonatal outcome. Conclusions: When clonidine and hyperbaric bupivacaine were administered in a sequential manner, block characteristics improved significantly compared to the administration of the mixture of the two drugs.

  7. COMPARATIVE CLINICAL EVALUATION OF 0.5% ROPIVACAINE AND 0.5% BUPIVACAINE FOR BRACHIAL PLEXUS BLOCK VIA SUPRACLAVICULAR APPROACH FOR UPPER LIMB SURGERIES.

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    Surendra

    2013-11-01

    Full Text Available ABSTRACT: Ropivacaine, a local anesthetic agent with similar pharmacological profile to that of bupivacaine has lower potential for toxic effect. The aim of our study is to compare the anesthetic characteristics of ropivacaine and bupivacaine when used for supraclavicular brachial plexus blockade in upper limb surgeries. Fifty patients was grouped equally and one group R received 0.5% ropivacaine (100mg 20ml and another group B received 0.5% bupivacaine (100mg 20ml. onset & durat ion of sensory and motor blockade, duration of analgesia and associated complications & side effects were recorded. It was found that there were no significant differences in duration of sensory & motor blockade, in complications or any other side effects in both the groups. But ropivacaine provided rapid onset of action and better quality of surgical anesthesia than bupivacaine when used in supraclavicular brachial plexus blockade.

  8. Liposome Bupivacaine for Postsurgical Analgesia in Adult Patients Undergoing Laparoscopic Colectomy: Results from Prospective Phase IV Sequential Cohort Studies Assessing Health Economic Outcomes

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    Keith A. Candiotti, MD

    2014-12-01

    Conclusions: Compared with intravenous opioid PCA, a liposome bupivacaine-based multimodal analgesia regimen reduced postsurgical opioid use, hospital length of stay, and ORAEs, and may lead to improved postsurgical outcomes following laparoscopic colectomy.

  9. A COMPARISON OF SPINAL ANAESTHESIA WITH LEVOBUPIVACAINE AND HYPERBARIC BUPIVACAINE COMBINED WITH FENTANYL IN CAESAREAN SECTION

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    Kurmanadh Kalepalli

    2016-10-01

    Full Text Available BACKGROUND Recent trends in obstetric anaesthesia show increased popularity of regional anaesthesia among obstetric anaesthetists. General anaesthesia in caesarean section is associated with high morbidity and mortality rate when compared with regional anaesthesia. Regional anaesthesia has its own demerits which are primarily related to excessively high spinal blocks and toxicity of local anaesthetics. Reduction in doses and improvement in technique to avoid high level blocks and increased awareness of toxicity of local anaesthetics have contributed to reduction in complications related to regional anaesthesia. The challenges presented by a parturient requiring anaesthesia or analgesia, or both, make the role of obstetric anaesthesiologist both challenging and rewarding. Spinal anesthesia is a popular technique for caesarean delivery. Hyperbaric Bupivacaine in 8% glucose is often used. Plain or glucose-free, Bupivacaine has been frequently referred to as “Isobaric” in the literature, even after Blomqvist and Nilsson demonstrated its hypobaricity. More recently, several studies have confirmed that plain Bupivacaine is indeed hypobaric in comparison with human CSF. Although hyperbaric local anesthetic solutions have a remarkable record of safety, their use is not totally without risk. To prevent unilateral or saddle blocks, patients should move from the lateral or sitting position rapidly to supine position. Hyperbaric solutions may cause sudden cardiac arrest after spinal anesthesia because of the extension of the sympathetic block. The use of truly isobaric solutions may prove less sensitive to position issues. Hyperbaric solutions may cause hypotension or bradycardia after mobilization. Isobaric solutions are favored with respect to their less sensitivity to postural changes. MATERIALS AND METHODS 60 full term parturients of ASA Grade 1 and 2 posted for elective caesarean section under spinal anaesthesia were divided in to two groups. GROUP

  10. Baricity of Bupivacaine on Maternal Hemodynamics after Spinal Anesthesia for Cesarean Section: A Randomized Controlled Trial

    Science.gov (United States)

    Atashkhoei, Simin; Abedini, Naghi; Pourfathi, Hojjat; Znoz, Ali Bahrami; Marandi, Pouya Hatami

    2017-01-01

    Background: After spinal anesthesia, patients undergoing cesarean section are more likely to develop hemodynamic changes. The baricity of local anesthetic has an important role on spinal blockade effects. The aim of this study was to compare the isobar and hyperbaric bupivacaine 0.5% plus fentanyl on maternal hemodynamics after spinal anesthesia for C/S. Methods: In this double-blind study, 84 healthy pregnant women undergoing C/S using bupivacaine 0.5% isobar (study group, n=42) or hyperbaric (control group, n=42) for spinal anesthesia were scheduled. The study was conducted from 21 April 2014 to 21 November 2014 at Al-Zahra Hospital, Tabriz, Iran. Parameters such as maternal hemodynamics, block characteristics, side effects, and neonatal Apgar scores were recorded. Data were analyzed using the SPSS software by performing chi-square test, Fisher’s exact test, one-way ANOVA, Mann-Whitney U-test, and student’s t test. Results: The incidence of hypotension in the isobar group was lower than the hyperbaric group, although it was not statistically significant (40.47% vs. 61.9%, P=0.08). The duration of hypotension was shorter in the study group (1.6±7.8 min vs. 7.4±12.5 min, P=0.004). The dose of ephedrine was lower in the study group (2.4±6.6 mg vs. 5.3±10.7 mg, P=0.006). The main maternal side effect is sustained hypotension that was seen in 0 patients of the isobar and 7 (16.66%) of hyperbaric groups (P=0.006). None of the neonates had Apgar score≤7 at 5 min of delivery (P=1.0). Sensory and motor block duration was shorter in the study group (P=0.01). Conclusion: Isobaric bupivacaine is associated with more hemodynamic stability and shorter sensory and motor blockade in mothers under spinal anesthesia for C/S. Trial Registration Number: IRCT201401287013N7

  11. A Lipid Emulsion Reverses Toxic-Dose Bupivacaine-Induced Vasodilation during Tyrosine Phosphorylation-Evoked Contraction in Isolated Rat Aortae

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    Seong-Ho Ok

    2017-02-01

    Full Text Available The goal of this in vitro study was to examine the effect of a lipid emulsion on toxic-dose bupivacaine-induced vasodilation in a model of tyrosine phosphatase inhibitor sodium orthovanadate-induced contraction in endothelium-denuded rat aortae and to elucidate the associated cellular mechanism. The effect of a lipid emulsion on vasodilation induced by a toxic dose of a local anesthetic during sodium orthovanadate-induced contraction was examined. In addition, the effects of various inhibitors, either bupivacaine alone or a lipid emulsion plus bupivacaine, on protein kinase phosphorylation induced by sodium orthovanadate in rat aortic vascular smooth muscle cells was examined. A lipid emulsion reversed the vasodilation induced by bupivacaine during sodium orthovanadate-induced contraction. The lipid emulsion attenuated the bupivacaine-mediated inhibition of the sodium orthovanadate-induced phosphorylation of protein tyrosine, c-Jun NH2-terminal kinase (JNK, myosin phosphatase target subunit 1 (MYPT1, phospholipase C (PLC γ-1 and extracellular signal-regulated kinase (ERK. These results suggest that a lipid emulsion reverses toxic-dose bupivacaine-induced vasodilation during sodium orthovanadate-induced contraction via the activation of a pathway involving either tyrosine kinase, JNK, Rho-kinase and MYPT1 or tyrosine kinase, PLC γ-1 and ERK, and this reversal is associated with the lipid solubility of the local anesthetic and the induction of calcium sensitization.

  12. Up-regulation of miR-26a promotes neurite outgrowth and ameliorates apoptosis by inhibiting PTEN in bupivacaine injured mouse dorsal root ganglia.

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    Cui, Changlei; Xu, Gong; Qiu, Jinpeng; Fan, Xiushuang

    2015-08-01

    Local anesthetic of bupivacaine may inhibit neurite outgrowth and induce apoptosis in mouse dorsal root ganglia (DRG) neurons. In this work, we intended to investigate the functional role of microRNA 26a (miR-26a) in regulating bupivacaine-induced nerve injury in DRG neurons. DRG neurons were extracted from C57BL/6 mice and cultured in vitro. Bupivacaine was applied in vitro and it induced apoptosis, inhibited neurite growth, and significantly down-regulated miR-26a gene in DRG neurons. MiR-26a mimic was then used to up-regulate miR-26a expression in DRG neurons. We found that miR-26a up-regulation promoted neurite outgrowth and reduced apoptosis in bupivacaine-injured DRG neurons. Luciferase assay and Western blot confirmed that Phosphatase and tensin homolog (PTEN) was down-stream target of miR-26a in DRG neurons. Ectopic PTEN up-regulation was then able to reverse the protective effect of miR-26a overexpression on bupivacaine-induced nerve injury in DRG neurons. Overall, this work demonstrated that miR-26a had a functional role in regulating bupivacaine-induced nerve injury in DRG neurons. Up-regulating miR-26a to suppress PTEN signaling pathway may be an effective method to protect local anesthetic-induced nerve injury in spinal cord.

  13. A Lipid Emulsion Reverses Toxic-Dose Bupivacaine-Induced Vasodilation during Tyrosine Phosphorylation-Evoked Contraction in Isolated Rat Aortae

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    Ok, Seong-Ho; Lee, Soo Hee; Kwon, Seong-Chun; Choi, Mun Hwan; Shin, Il-Woo; Kang, Sebin; Park, Miyeong; Hong, Jeong-Min; Sohn, Ju-Tae

    2017-01-01

    The goal of this in vitro study was to examine the effect of a lipid emulsion on toxic-dose bupivacaine-induced vasodilation in a model of tyrosine phosphatase inhibitor sodium orthovanadate-induced contraction in endothelium-denuded rat aortae and to elucidate the associated cellular mechanism. The effect of a lipid emulsion on vasodilation induced by a toxic dose of a local anesthetic during sodium orthovanadate-induced contraction was examined. In addition, the effects of various inhibitors, either bupivacaine alone or a lipid emulsion plus bupivacaine, on protein kinase phosphorylation induced by sodium orthovanadate in rat aortic vascular smooth muscle cells was examined. A lipid emulsion reversed the vasodilation induced by bupivacaine during sodium orthovanadate-induced contraction. The lipid emulsion attenuated the bupivacaine-mediated inhibition of the sodium orthovanadate-induced phosphorylation of protein tyrosine, c-Jun NH2-terminal kinase (JNK), myosin phosphatase target subunit 1 (MYPT1), phospholipase C (PLC) γ-1 and extracellular signal-regulated kinase (ERK). These results suggest that a lipid emulsion reverses toxic-dose bupivacaine-induced vasodilation during sodium orthovanadate-induced contraction via the activation of a pathway involving either tyrosine kinase, JNK, Rho-kinase and MYPT1 or tyrosine kinase, PLC γ-1 and ERK, and this reversal is associated with the lipid solubility of the local anesthetic and the induction of calcium sensitization. PMID:28208809

  14. Assessing Caudal Block Concentrations of Bupivacaine With and Without the Addition of Intravenous Fentanyl on Postoperative Outcomes in Pediatric Patients: A Retrospective Review.

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    Karkera, Megha M; Harrison, Dale R; Aunspaugh, Jennifer P; Martin, Timothy W

    2016-01-01

    Caudal blocks are a significant and efficacious aspect of pediatric anesthesia, especially in urologic and many general surgery cases. This type of regional anesthesia is common because it has a high success rate and provides between 6 and 8 hours of postoperative pain control. The aim of this study was to determine whether the concentration of bupivacaine or the addition of intravascular (i.v.) fentanyl affected the postanesthesia care unit (PACU) discharge time. A retrospective cohort study comparing the outcomes in pediatric patients who have received varying caudal concentrations with and without the addition of i.v. fentanyl was performed. A total of 849 consecutive patients undergoing hypospadias repairs or circumcisions were reviewed and placed in one of the following 3 groups: 0.125% bupivacaine (group 1), 0.25% bupivacaine (group 2), or one of these concentrations of bupivacaine + i.v. fentanyl intraoperatively (group 3). Total PACU time for each group was 46.1 minutes (group 1), 48.9 minutes (group 2), and 49.7 minutes (group 3). Our results revealed that there is no statistically significant difference between concentrations of bupivacaine administered in a caudal block with or without i.v. fentanyl with regard to the outcome of PACU duration (P = 0.16). Overall, based on the retrospective cohort design, there is no difference in primary and secondary outcomes based on the concentration of bupivacaine, when administered at a volume of 1 mL/kg.

  15. Intrathecal sufentanil or fentanyl as adjuvants to low dose bupivacaine in endoscopic urological procedures

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    Shikha Gupta

    2013-01-01

    Statistical analysis used: Analysis of variance and Chi-square test. Results: The onset of sensory and motor blockade was significantly rapid in Group A as compared with Groups B and C. The maximum upper level of sensory block was higher in Group A patients than Groups B and C patients. Quality of analgesia was significantly better and prolonged in sufentanil group as compared with other two groups. Motor block was more intense and prolonged in Group A as compared with Groups B and C patients. Request for post-operative analgesic was significantly delayed in Group B patients. Conclusions: Spinal anesthesia for endoscopic urological procedures in elderly patients using low dose bupivacaine (5 mg combined with 10 μg sufentanil is associated with a lower incidence of hemodynamic instability, better quality and prolonged duration as compared to that by adding 25 μg fentanyl.

  16. Comparison of Interpleural and Thoracic Epidural Bupivacaine with Buprenorphine for Post-Thoracotomy Analgesia

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    S K Mathur

    2008-01-01

    Full Text Available The study was designed to compare the efficacy of interpleural and thoracic epidural analgesia after thorac-otomy with regard to quality of analgesia and complications. Sixty patients undergoing elective thoracotomy were randomly and equally placed into either interpleural (IP or thoracic epidural (TE group. In IP group an interpleural catheter was placed in paravertebral space under direct vision during surgery and received 0.25% bupivacaine 20 ml with buprenorphine 150 mcg. In TE group an epidural catheter was inserted in the T6-7 / T7-8 interspace and received 0.25% bupivacaine 10 ml with buprenorphine 150 mcg. Dosage were repeated in both the groups to keep a VAS score < 40 for 48 hours post-operatively. Spirometry was done preoperatively and 12, 24 and 36 hours post-opera-tively. Vital parameters were monitored for 48 hours. The mean analgesia time was 331.73±94.03 min and 567.33±127.33 min in IP and TE groups respectively. The VAS score was significantly reduced within the first 30 minutes of injection in both the groups. Post injection VAS was significantly better in TE group. Mean time taken for interpleural and epidural catheter placement was 5.0±0.0 min and 33.83±3.39 min respectively. Postoperative forced expiratory volume in 1 second(FEV1, forced vital capacity (FVC and forced expiratory ratio (FER were similar in both the groups while peak expiratory flow rate (PEFR, maximal expiratory flow (MEF and F50 were slightly better in TE group. Vital parameters showed similar changes in both the groups. The TE group had more complications. Interpleural analgesia, though of shorter duration, is a safe and effective alternative technique for post-thoracotomy analgesia and has a low complication rate.

  17. Efficacy of epidural administration of morphine with bupivacaine for orthopaedic surgery in sheep

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    Durej M.

    2012-01-01

    Full Text Available The aim of the study was to test the hypothesis that epidural administration of morphine with bupivacaine provides more intense and sufficient perioperative analgesia compared with parenterally administrated butorphanol during orthopaedic surgery. Sheep were assigned to group C (control group, 6 sheep and group E (epidural, 5 sheep. Sheep from group C were pre-medicated with midazolam (0.3 mg/kg, i.m. and butorphanol (0.2 mg/kg, i.m.. Propofol was used for induction of general anesthesia in both groups. Sheep from group E were pre-medicated with midazolam, but without butorphanol. Sacrococcegeal epidural analgesia with morphine (0.1 mg/kg and bupivacaine (1 mg/kg was performed. We detected a significant increase in heart rate (19%, p=0.021 during surgery in group C. Two hours after surgery, the heart rate was 14.9% lower than prior to surgery in group E (p=0.017. In group E, throughout the surgery, we measured an insignificant increase in respiratory rate of 1.99%. In the same group, 120 minutes post surgery, we measured an increase in respiratory rate of 14.7%, while in group C there was a smaller increase of only 10.9%. The result from both groups was insignificant (p>0.05. The consumption of isoflurane in group C was higher than in group E by 27.3% (p=0.0043. The mean MAC was in group C higher by 27.6% as it was in group E (0.75% ± 0.25, 0.95 ± 0.3 in Group E and C, respectively. This distinction, according to the Mann-Whitney test, was not significant (p=0.329.

  18. A comparative randomized study of paravertebral block versus wound infiltration of bupivacaine in modified radical mastectomy

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    Parul Bansal

    2012-01-01

    Full Text Available Background: Paravertebral block (PVB has the potential to offer long-lasting pain relief because it can uniquely eliminate cortical responses to thoracic dermatomal stimulation. Benefits include a reduction in postoperative nausea and vomiting (PONV, prolonged postoperative pain relief, and potential for ambulatory discharge. Aims: To compare PVB with local infiltration for postoperative analgesia following modified radical mastectomy (MRM. Methods: Forty patients undergoing MRM with axillary dissection were randomly allocated into two groups. Following induction of general anesthesia in group P, a catheter was inserted in the paravertebral space and 0.3 ml/kg of 0.25 % of bupivacaine was administered followed by continuous infusion, while in group L, the surgical incision was infiltrated with 0.3 ml/kg of 0.25 % bupivacaine. Statistical Analysis: The statistical tests were applied as unpaired student ′t′ test/nonparametric test Wilcoxon Mann Whitney test for comparing different parameters such as VAS score and consumption of drugs. The categorical variables such as nausea and vomiting scores, sedation score, and patient satisfaction score were computed by Chi square test/Fisher exact test. Results: VAS score was significantly lower in group P than in group L throughout the postoperative period. The mean alertness score (i.e., less sedation was higher in group P in the postoperative period than group L. The incidence of PONV was less in PVB group. Conclusion: PVB at the end of the surgery results in better postoperative analgesia, lesser incidence of PONV, and better alertness score.

  19. COMPARISON OF 0.5% ROPIVACAINE & 0.5% BUPIVACAINE IN EPIDURAL ANAESTHESIA FOR PATIENTS UNDERGOING ABDOMINAL HYSTERECTOMY

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    Durga Shankar

    2015-07-01

    Full Text Available Ropivacaine is a new intermediate - acting amide local anesthetic which is structurally closely related to a chemical group of amino amides in present clinical use e.g. bupivacaine and mepivacaine . Ropivacaine has pharmacodynamic and pharmacokinetic properties in animals resembling those of bupivacaine. 1 - 3 In human volunteers, ropivacaine has been shown to be less prone than bupivacaine to produce mild central nervous system and cardiovascular changes after intravenous infusion Hence we designed a study to compare ropivacaine 0.5% with bupivacaine 0.5% for epidural anesthesia fo r abdominal hysterectomy. Healthy women, scheduled for elective abdominal hysterectomy were enrolled into this randomized, double - blind, parallel - group study. Epidural block was obtained with 20 ml of ropivacaine (group R or bupivacaine (group B and surgery started when anesthesia reached T6. Heart rate and blood pressure were assessed before the test dose and at five minute intervals for initial 30mins and then every 10mins until the full recovery. At the same intervals, sensory and motor block characteristics were determined. Adverse events were recorded. Sixty patients were enrolled and data available for analysis was 30 ropivacaine and 30 bupivacaine. Mean duration for total sensory blockade was 323.50±39.33mins for R group as compared to 312.0 ± 30.36mins for B group (p>0.05 . Motor onset time in group R was 17.26 ± 1.78 , 25.44 ± 1.79 and 28.28 ± 1.79mins for grade 1, 2 and 3 motor block respectively, compared to 16.73 ± 1.99 , 25.14 ± 2.05 and 28.66 ± 2.82mins for group B (p>0.05 . Duration of motor block in group R was 211.66 ± 32.91mins as compared to 288.66 ± 36.99mins in group B . (P value < 0.0001 . Analgesia was excellent in 83.33% cases and satisfactory in 10 % cases in group R as compared to 86.66% and 3.33% in group B respectively. 6.66% patients in group R and 10% patients in group B required intravenous fentanyl supplement and were

  20. Effect of clonidine as adjuvant in bupivacaine-induced supraclavicular brachial plexus block: A randomized controlled trial

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    Chakraborty Susmita

    2010-01-01

    Full Text Available Objective: Clonidine has been used as adjuvant to local anesthetics in order to extend the duration of analgesia in various regional and central neuraxial blocks. It is previously reported that clonidine added to bupivacaine increases analgesia duration in brachial plexus block. We evaluated the effect of this combination in supraclavicular brachial plexus block for upper limb orthopedic procedures. Materials and Methods: A randomized double-blind placebo controlled trial was done with 70 patients of American Society of Anesthesiologists Grade I or II status undergoing upper limb orthopedic procedures. Group A (n = 35 patients received 25 ml of 0.5% bupivacaine and 0.2 ml (30 mcg clonidine, whereas group B (n = 35 received 25 ml of 0.5% bupivacaine and 0.2 ml normal saline through a supraclavicular approach for brachial plexus block. Vital parameters were recorded 10 min prior to block placement and every 3 min thereafter till the end of the procedure. Onset and duration of both sensory and motor blocks and sedation score were recorded. All patients were observed in postanesthesia care unit and received tramadol injection as soon as they complained of pain as rescue analgesic. Duration of analgesia was taken as the time from placement of block till injection of rescue analgesic. Results: Analgesia duration was 415.4 ± 38.18 min (mean ± standard deviation in Group A (clonidine compared to 194.2 ± 28.74 min in Group B (control. No clinically significant difference was observed in heart rate, blood pressure, and oxygen saturation. Sedation score was higher in the clonidine group. Conclusion: Addition of a small dose of clonidine to 0.5% bupivacaine significantly prolonged the duration of analgesia without producing any clinically important adverse reactions other than sedation.

  1. A comparative study of the effect of caudal dexmedetomidine versus morphine added to bupivacaine in pediatric infra-umbilical surgery

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    Hossam A El Shamaa

    2014-01-01

    Full Text Available Background: One of the most commonly used regional anesthetic techniques in pediatric surgeries is the caudal epidural block. Its main disadvantage remains the short duration of action. Hence, different additives have been used. Dexmedetomidine is a potent as well as highly selective α2 adrenergic receptor agonist. The aim of this randomized, double-blinded, study was to compare the duration of postoperative analgesia of caudal dexmedetomidine versus morphine in combination with bupivacaine in pediatric patients undergoing lower abdominal or perineal surgery. Patients and Methods: A total of 50 pediatric patients 1-5 years old The American Society of Anesthesiologists status I, II scheduled for lower abdominal and perineal surgeries were included in the study. The patients were enrolled into 2 equal groups: Group A patients (n = 25 received dexmedetomidine with bupivacaine while Group B patients (n = 25 received morphine with bupivacaine. Patients were placed in a supine position then inhalational general anesthesia was induced, and laryngeal mask airway (LMA was placed. Patients were then given caudal epidural analgesia. By the end of surgery reversal of muscle relaxation was done and the LMA was removed. Post-operatively, the sedation as well as pain score were observed and recorded. Results: The current study showed that minor complications were recorded in the post-anesthesia care unit; in addition, significantly longer periods of analgesia and sedation were detected in Group A. However, no significant differences in demographic data, as well as in the duration of surgery, and the time of emergence from anesthesia and patient condition during recovery were detected. Conclusion: The present study suggested that use of dexmedetomidine, during single dose injection, as an additive to the local anesthetic bupivacaine in caudal epidural analgesia prolongs the duration of post-operative analgesia following lower abdominal as well as perineal

  2. Combined lipid emulsion and ACLS resuscitation following bupivacaine- and hypoxia-induced cardiovascular collapse in unanesthetized swine.

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    Bushey, Brent A; Auld, Victor H; Volk, John E; Vacchiano, Charles A

    2011-04-01

    This study examined whether combining lipid emulsion and advanced cardiac life support (ACLS) improves survival in an unanesthetized swine model of bupivacaine- and hypoxia-induced cardiovascular collapse. Arterial and venous catheters and a tracheostomy were surgically placed in 26 swine receiving inhalation anesthesia. After a 1-hour recovery period, bupivacaine (5 mg/kg) was administered intravenously over 15 seconds. Following 1 minute of observation and 3 minutes of mechanical airway obstruction, during which all animals exhibited complete cardiovascular collapse, ACLS was initiated. Animals were randomized to receive either intravenous saline or 20% lipid emulsion commencing with the initiation ofACLS. Survival was defined as a return of spontaneous circulation (ROSC) with unsupported blood pressure greater than 60 mm Hg for 10 minutes after 25 minutes of resuscitation effort. Data collection included electrocardiogram, arterial blood pressure, and arterial and mixed venous oxygen saturations. There was no significant difference in survival between the saline group (4/12, 33%) and lipid emulsion group (6/12, 50%; P > .05). Additionally, there was no significant difference between groups of surviving animals in the time to ROSC (P > .05). The combination of lipid emulsion and ACLS did not improve survival from bupivacaine- and hypoxia-induced cardiovascular collapse in unanesthetized swine.

  3. Quantitative Mass spectrometric Analysis of Ropivacaine and Bupivacaine in Authentic, Pharmaceutical and Spiked Human Plasma without Chromatographic Separation

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    Nahla N. Salama

    2009-01-01

    Full Text Available The present study employs time of flight mass spectrometry for quantitative analysis of the local anesthetic drugs ropivacaine and bupivacaine in authentic, pharmaceutical and spiked human plasma as well as in the presence of their impurities 2,6-dimethylaniline and alkaline degradation product. The method is based on time of flight electron spray ionization mass spectrometry technique without preliminary chromatographic separation and makes use of bupivacaine as internal standard for ropivacaine, which is used as internal standard for bupivacaine. A linear relationship between drug concentrations and the peak intensity ratio of ions of the analyzed substances is established. The method is linear from 23.8 to 2380.0 ng mL-1 for both drugs. The correlation coefficient was ≥0.996 in authentic and spiked human plasma. The average percentage recoveries in the ranges of 95.39%–102.75% was obtained. The method is accurate (% RE < 5% and reproducible with intra- and inter-assay precision (RSD% < 8.0%. The quantification limit is 23.8 ng mL-1 for both drugs. The method is not only highly sensitive and selective, but also simple and effective for determination or identification of both drugs in authentic and biological fluids. The method can be applied in purity testing, quality control and stability monitoring for the studied drugs.

  4. Analgesic Effect of Intra-Articular Injection of Temperature-Responsive Hydrogel Containing Bupivacaine on Osteoarthritic Pain in Rats

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    Taemin Kim

    2015-01-01

    Full Text Available The present study examined the analgesic effects of slow-releasing bupivacaine from hydrogel on chronic arthritic pain in rats. Osteoarthritis (OA was induced by monosodium iodoacetate (MIA injection into the right knee joint. Hydrogel (HG: 20, 30, and 50 μL and temperature-sensitive hydrogel containing bupivacaine (T-gel: 20, 30, and 50 μL were injected intra-articularly 14 days after MIA injection. Behavioral tests were conducted. The rats showed a significant decrease in weight load and paw withdrawal threshold (PWT. Intra-articular 0.5% bupivacaine (10 and 20 μL significantly reversed MIA-induced decreased PWT, with no effect on weight load. In normal rats, hydrogel did not produce significant changes in PWT but at 30 and 50 μL slightly decreased weight bearing; T-gel did not cause any changes in both the weight load and PWT. In OA rats, T-gel at 20 μL had a significant analgesic effect for 2 days, even though T-gel at 50 μL further reduced the weight load, demonstrating that intra-articular T-gel (20 μL has long-lasting analgesic effects in OA rats. Thus, T-gel designed to deliver analgesics into the joint cavity could be an effective therapeutic tool in the clinical setting.

  5. Bupivacaine in combination with fentanyl or sufentanil in epidural/intrathecal analgesia for labor: a meta-analysis.

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    Li, Bo; Wang, Huixia; Gao, Chengjie

    2015-05-01

    This study is to compare the effectiveness of combinational use of bupivacaine with fentanyl (BUPI-FEN) and sufentanil (BUPI-SUF) in epidural/intrathecal analgesia for labor. Electronic databases were searched for relevant research papers published between 1985 and 2014. Meta-analyses of mean differences or odds ratios were performed and statistical heterogeneity between the studies tested by I(2) index. Ten studies recruiting a total of 728 women in labor were selected. Concentrations of the anesthetics used as mean ± sd were bupivacaine 0.115 ± 0.056%, fentanyl 0.0007 ± 0.001%, and sufentanil 0.00017 ± 0.00022%. Duration of analgesia was not significantly different between BUPI-SUF and BUPI-FEN administered mothers (mean difference [95%CI] of -33.55 [-74.94, 7.83] minutes; P = .11) under random effects. The onset of analgesia was also not significantly different between both groups (mean difference [95%CI] of -0.61 [-1.38, 0.16] minutes; P = .12). The number of neonates with Apgar score bupivacaine provide similar analgesic properties via the epidural or intrathecal routes for labor pain relief.

  6. Treatment of intractable chronic pelvic pain syndrome by injecting a compound of Bupivacaine and Fentanyl into sacral spinal space

    Institute of Scientific and Technical Information of China (English)

    ZHOU Zhan-song; SONG Bo; NIE Fa-chuan; CHEN Jin-mei

    2006-01-01

    Objective:To investigate the effect of injecting a compound of Bupivacaine and Fentanyl into sacral spinal space to treat chronic pelvic pain syndrome (CPPS). Methods: A total of 36 men with recalcitrant CPPS refractory to multiple prior therapies were treated with the injection of a compound of Bupivacaine and Fentanyl (10 ml of 0. 125% upivacaine, .05 mg Fentanyl, 5 mg Dexamethasone, 100 mg Vitamin B1 and 1 mg Vitamin B12) into sacral space once a week for 4 weeks. The National Institute of Health Chronic Prostatitis Symptom Index (NIH-CPSI), maximum and average flow rate were performed at the start and the end of 4 weeks' therapy. Results :Mean NIH-CPSI total score was decreased from 26.5±.6 to 13.4±2.0 (P<0. 001). Significant improvement was seen in each subscore domain. A total of 32 patients (89%) had at least 25% improvement on NIH-CPSI and 22 (61%) had at least 50% improvement. Maximal and average flow rate were increased from 19. 5±3.8 to 23. 6±4. 2 and 10. 9±2.6 to 14.3± 2.4 respectively. Conclusion: Injection of this compound of Bupivacaine, Fentanyl and Dexamethasone into sacral spinal space is an effective and safe approach for recalcitrant CPPS. Further study of the mechanisms and prospective placebo controlled trials are warranted.

  7. A COMPARATIVE STUDY OF INTRATHECAL HYPERBARIC 0.5% BUPIVACAINE VERSUS INTRATHECAL 0.5% ISOBARIC LEVOBUPIVACAINE

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    Kurmanadh K

    2016-09-01

    Full Text Available BACKGROUND Bupivacaine is a long-acting agent capable of producing prolonged anaesthesia and analgesia that can be prolonged even further by the addition of epinephrine. It is substantially more cardiotoxic than lidocaine. The cardiotoxicity of bupivacaine is cumulative and substantially greater than would be predicted by its LA potency. At least part of the cardiotoxicity of bupivacaine maybe mediated centrally because direct injection of small quantities of bupivacaine into the medulla can produce malignant ventricular arrhythmias. Bupivacaine-induced cardiotoxicity can be difficult to treat.[1] Levobupivacaine contains a single enantiomer of bupivacaine hydrochloride and is less cardiotoxic than bupivacaine. It is extensively metabolised with no unchanged drug detected in urine or faeces. Research results suggest that levobupivacaine is a suitable less toxic alternative to bupivacaine.[2] METHODS The study entitled “A Randomised Controlled Double-Blind Comparative Study of 0.5% Levobupivacaine vs. 0.5% Heavy Bupivacaine For Surgeries Below Umbilicus During Spinal Anaesthesia” for various procedures done in the Department of Anaesthesiology at Andhra Medical College at King George Hospital, Visakhapatnam, from November 2011 to October 2012. The study was undertaken after obtaining Hospital Ethics Committee clearance as well as written informed consent from all patients after explaining and reassuring about the spinal procedure. A total of 100 patients of both sexes scheduled for elective lower abdominal surgeries under spinal anaesthesia in the age group of 18 to 55 years and belonging to American Society of Anaesthesiologists (ASA Physical Status I and II were enrolled for the study. The enrolled patients were randomised to one of the two groups of equal-sized prospective, comparative study group using a double-blind protocol design Group B (n=50 received 3.0 mL volume of 0.5% hyperbaric bupivacaine intrathecally and Group L (n=50

  8. EFFICACY OF DEXMEDETOMIDINE AS AN ADJUVANT TO BUPIVACAINE FOR CAUDAL ANALGESIA IN PAEDIATRIC PATIENTS UNDERGOING LOWER ABDOMINAL SURGERIES

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    Vijay

    2014-07-01

    Full Text Available CONTEXT: Various adjuvants such as opioids or α2 agonists are being used to improve the quality and duration of caudal analgesia with local anesthetics. Dexmedetomidine a α2 agonist is used frequently in adult patients to enhance the local anesthetic effect. However there is little literature regarding its effectiveness in pediatric caudal analgesia. The objective of this study was to assess the efficacy of dexmedetomidine when used as an adjuvant to bupivacaine in increasing the duration of caudal analgesia. AIM: The aim of this study was to investigate the effect of adding Dexmedetomidine to caudal Bupivacaine and observe the effect on the duration of analgesia in the post-operative period. SETTINGS AND DESIGN: One year hospital based Double Blind Randomized Controlled Trial. METHODS AND MATERIAL: Sixty children, aged 1-6 years, undergoing lower abdominal surgeries were included in this prospective randomized double-blind study. The patients were randomly divided into two groups: Group I received Bupivacaine (0.25% 1ml/kg plus 1 ml of normal saline in the caudal epidural space. Group II was administered Bupivacaine (0.25% 1ml/ with Dexmedetomidine 2 mcg/ ml diluted to 1 ml of normal saline in the caudal epidural space. All anesthetic and surgical techniques were standardized. Heart rate, blood pressure, oxygen saturation, respiratory rate were monitored continuously. Surgery was started 10-15 minutes after the injection and confirming adequacy of caudal block. Duration of analgesia was assessed using FLACC scale (Face, Legs, Activity, Cry, Consolability scale. The time from administration of caudal anesthesia to the first time the FLACC score equal or greater than 4 was considered as the duration of caudal analgesia. Paracetamol suppository was used as rescue analgesia with a loading dose of 40mg/kg. STATISTICAL ANALYSIS: Mann-Whitney test and Student ‘t’test was used to compare the data obtained in the two groups. RESULTS: The

  9. Liposome bupivacaine for improvement in economic outcomes and opioid burden in GI surgery: IMPROVE Study pooled analysis

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    Cohen SM

    2014-06-01

    Full Text Available Stephen M Cohen,1 Jon D Vogel,2 Jorge E Marcet,3 Keith A Candiotti4 1Atlanta Colon and Rectal Surgery, PA, Atlanta, GA, USA; 2General Surgery Clinic, University of Colorado, Aurora, CO, USA; 3Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, USA; 4Department of Anesthesiology, University of Miami Leonard Miller School of Medicine, Miami, FL, USA Abstract: Postsurgical pain management remains a significant challenge. Liposome bupivacaine, as part of a multimodal analgesic regimen, has been shown to significantly reduce postsurgical opioid consumption, hospital length of stay (LOS, and hospitalization costs in gastrointestinal (GI surgery, compared with intravenous (IV opioid-based patient-controlled analgesia (PCA. Pooled results from open-label studies comparing a liposome bupivacaine-based multimodal analgesic regimen with IV opioid PCA were analyzed. Patients (n=191 who underwent planned surgery and received study drug (IV opioid PCA, n=105; multimodal analgesia, n=86 were included. Liposome bupivacaine-based multimodal analgesia compared with IV opioid PCA significantly reduced mean (standard deviation [SD] postsurgical opioid consumption (38 [55] mg versus [vs] 96 [85] mg; P<0.0001, postsurgical LOS (median 2.9 vs 4.3 days; P<0.0001, and mean hospitalization costs (US$8,271 vs US$10,726; P=0.0109. The multimodal analgesia group reported significantly fewer patients with opioid-related adverse events (AEs than the IV opioid PCA group (P=0.0027; there were no significant between-group differences in patient satisfaction scores at 30 days. A liposome bupivacaine-based multimodal analgesic regimen was associated with significantly less opioid consumption, opioid-related AEs, and better health economic outcomes compared with an IV opioid PCA-based regimen in patients undergoing GI surgery. Study registration: This pooled analysis is based on data from Phase IV clinical trials registered on the US National

  10. Liposomal Bupivacaine Suspension Can Reduce Lengths of Stay and Improve Discharge Status of Patients Undergoing Total Knee Arthroplasty.

    Science.gov (United States)

    Chughtai, Morad; Cherian, Jeffrey Jai; Mistry, Jaydev B; Elmallah, Randa D K; Bennett, Alicia; Mont, Michael A

    2016-04-01

    The purpose of this study was to use a large hospital database to assess: (1) length of hospital stay (LOS) and (2) discharge status among patients undergoing total knee arthroplasty (TKA) with or without the use of a liposomal bupivacaine suspension injection. We utilized an all-payer hospital administrative database from July 1, 2013 to June 30, 2014. We then selected patients age 18 years or older who had an inpatient stay for TKA in the data window based on International Classification of Diseases, Ninth Revision (ICD-9) procedure codes (ICD-9-CM = 81.54), which resulted in 103,152 TKA patients. Patients who had nerve blocks were excluded, which resulted in 94,828 TKA patients. The TKA cohort who received a liposomal bupivacaine suspension consisted of 14,668 patients (9,211 females; 5,457 males) who had a mean age of 66 years, while the TKAs without injections or block consisted of 80,160 patients (49,699 females; 30,461 males) who had a mean age of 66 years. Analyses of LOS were performed using a linear model, controlling for age, sex, race, region, Charlson index, and operating time. Discharge status to home versus rehabilitation or short-term nursing facility was evaluated using logistic regression analysis controlling for the above covariates. The adjusted mean LOS for the injection cohort was significantly shorter at 2.58 days compared with 2.98 days in the no injection cohort. The unadjusted distribution of patients being discharged to home compared with short-term nursing facility or rehabilitation was higher in the injection cohort compared with the cohort who did not receive injections (73.2 vs. 66.6%). Logistic regression analysis demonstrated that there was a higher likelihood of being discharged to home with liposomal bupivacaine. Patients who underwent TKA with liposomal bupivacaine had a significantly shorter LOS and a higher likelihood of being discharged to home. These results suggest that liposomal bupivacaine may represent a promising

  11. Bupivacaine-loaded comatrix formed by albumin microspheres included in a poly(lactide-co-glycolide) film: in vivo biocompatibility and drug release studies.

    Science.gov (United States)

    Blanco, M D; Bernardo, M V; Gómez, C; Muñiz, E; Teijón, J M

    1999-10-01

    Bupivacaine-loaded comatrix, formed by bupivacaine-loaded microspheres included in a poly(lactide-co-glycolide) film, was assayed for the controlled release of the drug 'in vivo'. The comatrix, with 66.37 microg of bupivacaine, signifying a dose of 265.5 microg/kg, was subcutaneously implanted in the back of rats. Maximum plasma bupivacaine concentration was 147.6 +/- 5.0 ng/ml 95 h after the device implantation, and the drug was detected in plasma for 17 days. The half-life time of bupivacaine improves by more than 50 times with regard to that of the drug administered in a solution by intraperitoneal injection. After 15 days of implantation the comatrix was included in a thin fibrous capsule and degradation of the microspheres was observed. The histological studies show good biocompatibility of this comatrix. After 50 days the comatrix was degraded and its remains were almost indistinguishable from the surrounding tissue. Small number of microspheres was observed and they were surrounded by conjunctive tissue. Nerve packets and small blood vessels were also observed in the periphery of the implant.

  12. Bilateral interpleural versus lumbar epidural bupivacaine-morphine analgesia for upper abdominal surgery.

    Science.gov (United States)

    Demian, Atef D; Wahba, Ashraf M; Atia, Emad M; Hussein, Sami H

    2003-10-01

    This randomized study was designed to compare the effectiveness of bilateral interpleural analgesia with lumbar epidural analgesia, on postoperative pain relief in upper abdominal surgery. The studied patients were randomely allocated into either interpleural group "IP" (n = 15) or epidural group "EP" (n = 15). In "IP" group, preanesthetic bilateral interpleural block was done using a mixture of bupivacaine 0.5% (0.8 mg/kg) and 2 mg morphine diluted to 50 ml saline for each side. In "EP" group, the same mixture-diluted in 20 ml saline-was injected in the epidural space (L2-3). The general anesthetic technique was the same in both groups. Hemodynamic, gasometric, verbal pain score (VPS) values and complications were compared in both techniques. Heart rate (HR) and mean arterial pressure (MAP) readings were in the accepted normal range in the perioperative period although significant lower readings were detected in "EP" group. No significant differences were displayed in blood gasometric variables between the two groups. There were considerable level of analgesia in both groups in the postoperative period although "EP" analgesia was superior to "IP". More pain free patients (9 versus 4) and significant lower consumption of nalbuphine were detected in "EP" group. The results of this study indicate that bilateral "IP" analgesia may offer a satisfactory analgesia for upper abdominal surgery when the use of other analgesic techniques may be contraindicated.

  13. New Updates Pertaining to Drug Delivery of Local Anesthetics in Particular Bupivacaine Using Lipid Nanoparticles.

    Science.gov (United States)

    Beiranvand, Siavash; Eatemadi, Ali; Karimi, Arash

    2016-12-01

    Lipid nanoparticles (liposomes) were first described in 1965, and several work have led to development of important technical advances like triggered release liposomes and drug-loaded liposomes. These advances have led to numerous clinical trials in such diverse areas such as the delivery of anti-cancer, antifungal, and antibiotic drugs; the delivery of gene medicines; and most importantly the delivery of anesthesia drugs. Quite a number of liposomes are on the market, and many more are still in developmental stage. Lipid nanoparticles are the first nano-medicine delivery system to be advanced from laboratory concept to clinical application with high considerable clinical acceptance. Drug delivery systems for local anesthetics (LAs) have caught the interest of many researchers because there are many biomedical advantages connected to their application. There have been several formulation techniques to systemically deliver LA that include encapsulation in liposomes and complexation in cyclodextrins, nanoparticles, and to a little extent gold nanoparticles. The proposed formulations help to decrease the LA concentration utilized, increase its permeability, and most importantly increase the localization of the LA for a long period of time thereby leading to increase in the duration of the LA effect and finally to reduce any local and systemic toxicity. In this review, we will highlight on new updates pertaining to drug delivery of local anesthetics in particular bupivacaine using lipid nanoparticles.

  14. Evaluation of the antinociceptive effects of lidocaine and bupivacaine on the tail nerves of healthy rats.

    Science.gov (United States)

    Li, Zhuo; Chai, Yunfei; Gong, Chunyu; Du, Guizhi; Liu, Jin; Yang, Jing

    2013-07-01

    This study was designed to develop a simple and effective model of tail nerve block without general anaesthesia and surgical incision, to assist in exploring and studying new local anaesthetics. Tail nerves of adult, male Sprague-Dawley rats were blocked by injecting 1% lidocaine and 0.5% bupivacaine, respectively. To evaluate the tail nerve block model, the effects of tail nerve blocks induced by two classical local anaesthetics were assessed and compared by recording disappearance and recovery time of thermal and mechanical nociception. The results showed that thermal and mechanical nociception of the tail disappeared after application of local anaesthetics but were unchanged by normal saline. No abnormal results were found in both the 3-day observation period and the pathological study, and pain thresholds of all rats recovered fully. We have thus developed an easily operated, reliable and reversible model of tail nerve block for conscious rats that can be used to evaluate efficacy, safety and pharmacokinetics of new local anaesthetics and additives.

  15. New Updates Pertaining to Drug Delivery of Local Anesthetics in Particular Bupivacaine Using Lipid Nanoparticles

    Science.gov (United States)

    Beiranvand, Siavash; Eatemadi, Ali; Karimi, Arash

    2016-06-01

    Lipid nanoparticles (liposomes) were first described in 1965, and several work have led to development of important technical advances like triggered release liposomes and drug-loaded liposomes. These advances have led to numerous clinical trials in such diverse areas such as the delivery of anti-cancer, antifungal, and antibiotic drugs; the delivery of gene medicines; and most importantly the delivery of anesthesia drugs. Quite a number of liposomes are on the market, and many more are still in developmental stage. Lipid nanoparticles are the first nano-medicine delivery system to be advanced from laboratory concept to clinical application with high considerable clinical acceptance. Drug delivery systems for local anesthetics (LAs) have caught the interest of many researchers because there are many biomedical advantages connected to their application. There have been several formulation techniques to systemically deliver LA that include encapsulation in liposomes and complexation in cyclodextrins, nanoparticles, and to a little extent gold nanoparticles. The proposed formulations help to decrease the LA concentration utilized, increase its permeability, and most importantly increase the localization of the LA for a long period of time thereby leading to increase in the duration of the LA effect and finally to reduce any local and systemic toxicity. In this review, we will highlight on new updates pertaining to drug delivery of local anesthetics in particular bupivacaine using lipid nanoparticles.

  16. A comparative study of intrathecal ropivacaine with fentanyl and L-bupivacaine with fentanyl in lower abdominal and lower limb surgeries

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    Prem Swarup Vampugalla

    2015-12-01

    Conclusion: This study revealed that the intrathecal ropivacaine with fentanyl provided adequate anesthesia for lower abdominal and lower limb surgeries. Ropivacaine achieved a shorter duration of sensory and motor blockade, and a lesser degree of motor blockade when compared to L-bupivacaine. Thus, ropivacaine was justified for short duration ambulatory surgeries of lower abdominal and lower limb surgeries. Furthermore, fentanyl as an adjuvant to both ropivacaine and L-bupivacaine enhanced the duration of the sensory block. Hence, ropivacaine with fentanyl in spinal anesthesia for lower abdominal and lower limb surgeries is a better alternative compared to L-bupivacaine with fentanyl favoring day care ambulatory surgeries. [Int J Basic Clin Pharmacol 2015; 4(6.000: 1147-1155

  17. Evaluation of spinal anesthesia blockade time with 0.5% hyperbaric bupivacaine, with or without sufentanil, in chronic opioid users: a randomized clinical trial

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    Mostafa Sadeghi

    2016-08-01

    Full Text Available Abstract Objective: The primary outcome of this study was to evaluate the effect of adding sufentanil to hyperbaric bupivacaine on duration of sensory blockade of spinal anesthesia in chronic opioid users in comparison with non-addicts. Methods: Sixty patients scheduled for orthopedic surgery under spinal anesthesia were allocated into four groups: group 1 (no history of opium use who received intrathecal hyperbaric bupivacaine along with 1 mL saline as placebo; group 2 (no history of opium use who received intrathecal bupivacaine along with 1 mL sufentanil [5 µg]; group 3 (positive history of opium use who received intrathecal bupivacaine along with 1 mL saline as placebo and group 4 (positive history of opium use who received intrathecal bupivacaine along with 1 mL sufentanil [5 µg]. The onset time and duration of sensory and motor blockade were measured. Results: The duration of sensory blockade in group 3 was 120 ± 23.1 min which was significantly less than other groups (G1 = 148 ± 28.7, G2 = 144 ± 26.4, G4 = 139 ± 24.7, p = 0.007. The duration of motor blockade in group 3 was 145 ± 30.0 min which was significantly less than other groups (G1 = 164 ± 36.0, G2 = 174 ± 26.8, G4 = 174 ± 24.9, p = 0.03. Conclusions: Addition of 5 µg intrathecal sufentanil to hyperbaric bupivacaine in chronic opioid users lengthened the sensory and motor duration of blockade to be equivalent to blockade measured in non-addicts.

  18. Supraclavicular Brachial Plexus Block For Upper Limb Orthopedic Surgery: A Randomized, Double Blinded Comparison Between 0.5%Ropivacaine And 0.5% Bupivacaine.

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    Dr.Jigisha Prahladrai Badheka

    2016-08-01

    Full Text Available Purpose: This prospective double blinded study designedwith the aim of comparing the onset, duration of sensory and motor block and analgesic effect of ropivacaine 0.5%with bupivacaine 0.5% when used in supraclavicular brachial plexus block in patients undergoing upper limb orthopedic surgeries. Materials and method: 60 patients of either sex, aged 20-66 yrs, scheduled for elective upper limb orthopedic surgeries under supraclavicular brachial plexus block, were randomly divided into two groups containing 30 patients in each. Group B received 0.5% 30ml bupivacaine and group R received 0.5% 30ml ropivacaine. Patients were observed for onset, duration of sensory and motor blockade, post-operative analgesia using visual analogue scale and complications if any. Results: In comparison to equal volume of 0.5% bupivacaine, 0.5% ropivacaine provides significant earlier onset of sensory block (9.5±2min& 7.46 ±2.54 min respectively and motor block (12.6±2.2min& 10.66±2.24 min respectively.There is statistically significant longer duration of motor block with bupivacaine (486.16±56.74as compared to ropivacaine (359±55.66 min. However duration of sensory blockade, duration of analgesia and haemodynamics were comparable in both groups. We observed convulsions in one patient in bupivacaine group which was successfully managed. No complications were encountered in ropivacaine group.Conclusion: Ropivacaine provides faster onset of sensory and motor block with less duration of motor block, equal postoperative analgesia and higher safety profile as compared to bupivacaine.

  19. Pharmacokinetics of lidocaine and bupivacaine following subarachnoid administration in surgical patients: simultaneous investigation of absorption and disposition kinetics using stable isotopes

    Energy Technology Data Exchange (ETDEWEB)

    Burm, A.G.; Van Kleef, J.W.; Vermeulen, N.P.; Olthof, G.; Breimer, D.D.; Spierdijk, J.

    1988-10-01

    The pharmacokinetics of lidocaine and bupivacaine following subarachnoid administration were studied in 12 surgical patients using a stable isotope method. After subarachnoid administration of the agent to be evaluated, a deuterium-labelled analogue was administered intravenously. Blood samples were collected for 24 h. Plasma concentrations of the unlabelled and the deuterium-labelled local anesthetics were determined using a combination of capillary gas chromatography and mass fragmentography. Bi-exponential functions were fitted to the plasma concentration-time data of the deuterium-labelled local anesthetics. The progression of the absorption was evaluated using deconvolution. Mono- and bi-exponential functions were then fitted to the fraction absorbed versus time data. The distribution and elimination half-lives of the deuterium-labelled analogues were 25 +/- 13 min (mean +/- SD) and 121 +/- 31 min for lidocaine and 19 +/- 10 min and 131 +/- 33 min for bupivacaine. The volumes of the central compartment and steady-state volumes of distribution were: lidocaine 57 +/- 10 l and 105 +/- 25 l, bupivacaine 25 +/- 6 l and 63 +/- 22 l. Total plasma clearance values averaged 0.97 +/- 0.21 l/min for lidocaine and 0.56 +/- 0.14 l/min for bupivacaine. The absorption of lidocaine could be described by a single first order absorption process, characterized by a half-life of 71 +/- 17 min in five out of six patients. The absorption of bupivacaine could be described adequately assuming two parallel first order absorption processes in all six patients. The half-lives, characterizing the fast and slow absorption processes of bupivacaine, were 50 +/- 27 min and 408 +/- 275 min, respectively. The fractions of the dose, absorbed in the fast and slow processes, were 0.35 +/- 0.17 and 0.61 +/- 0.16, respectively.

  20. MAGNESIUM SULPHATE VS CLONIDINE AS AN ADJUVANT TO 0.5% BUPIVACAINE IN EPIDURAL ANAESTHESIA FOR PATIENTS UNDERGOING LOWER LIMB SURGERIES: A COMPARATIVE STUDY

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    Anand Masih

    2015-09-01

    Full Text Available Epidural anesthesia is a safe and inexpensive technique with the advantage of providing surgical anesthesia and prolonged postoperative pain relief. To address the problems of limited duration of action and to improve the quality of analgesia intra - operatively and postoperatively, various adjuvants have been added to bupivacaine. The present study is designed to evaluate the effect of magnesium sulphate vs clonidine as an adjunct to 0.5% Bupivacaine in epidural anesthesia for patients undergoing lower limb surgeries in terms of onset, duration and degree of sensory and motor block, sedation and pain. 90 patients of age group 18 - 60 years of ASA grade I & II of either sex undergoing lower limb surgeries were included in this prospective study who were randomly allocated into three groups . Group A received bupivacaine 0.5%(19ml +normal saline 0.9% (1.0ml, Group B received bupivacaine 0.5%(19ml+magnesium sulphate 50mg dissolved in 0.9% normal saline (1.0ml and Group C received bupivacaine 0.5%(19ml +clonidine 150μgm(1.0ml. Assessments of sensory block were performed at 5, 10, 15, 20, 25, 30 min and then every 10 min until the return of normal sensation. . Assessment of motor block were performed immediately after the assessment of sensory block until the return of normal motor function. The onset and end of all degrees of motor blocks were assessed bilaterally according to the Modified Bromage scale. Duration of analgesia, patient’s satisfaction, duration of motor block and adverse effects were assessed and recorded. We concluded that co - administration of epidural magnesium sulphate 50 MG with bupivacaine 0.5% produces predictable rapid onset of surgical anesthesia without any side - effects, and addi tion of clonidine 150μgmto epidural bupivacaine 0.5% produces prolonged duration of anesthesia with sedation. The results of our study suggest that magnesium may be a useful alternative as an adjuvant to epidural bupivacaine as clonidine .

  1. COMPARATIVE EVALUATION OF CAUDAL FENTANYL AND CLONIDINE AS ADJUVANT TO BUPIVACAINE FOR POST- OPERATIVE ANALGESIA IN PEDIATRIC GENITOURINARY AND INGUINAL SURGERIES

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    Vikas Kumar

    2014-08-01

    Full Text Available Post-operative analgesia in children is a challenging task before the anesthesiologist. Caudal analgesia is an accepted and popular method of providing intraoperative and postoperative analgesia for genitourinary and inguinal surgeries in children. Because of short duration of action of Bupivacaine, various adjuncts have been tried by many anesthesiologists. Fentanyl and Clonidine are used along with local anesthetics to prolong duration of analgesia. Hence we are comparing 1 mcg/kg of Fentanyl and 1 mcg/kg of Clonidine as adjuvants to 0.25% bupivacaine at a volume of 0.75 ml/kg in children undergoing genitourinary and inguinal surgeries. AIMS AND OBJECTIVES: To compare the efficacy of Fentanyl and Clonidine as adjuncts to Bupivacaine for postoperative analgesia in pediatric patients and to evaluate the sequel and side effects of both. MATERIALS AND METHODS: Study design – Comparative randomized controlled study. Sample size: 120 children aged between 2-7 years posted for genitourinary and inguinal surgeries. Group I (B received 0.75 ml/kg of 0.25% Bupivacaine alone caudally. Group II (BF received 0.75 ml/kg of 0.25% Bupivacaine and 1 µg/kg Fentanyl caudally. Group III (BC received 0.75 ml/kg of 0.25% Bupivacaine and 1 µg/kg Clonidine caudally. Postoperatively the duration of analgesia, motor blockade and sedation was assessed by Modified Objective Pain Scale, Ramsay Sedation Score and modified Bromage scale respectively. Side effects and complications, if present were recorded. Tests used for statistical analysis were Fishers exact test and student t test. RESULTS: The mean duration of analgesia in group BC (601.5 + 60.17 minutes was much higher than group BF and B but with side effect of sedation. We observed that there was a statistically increased duration of analgesia in Clonidine group as compared to Fentanyl and plain Bupivacaine group with no difference in duration of motor blockade. There was increased sedation in group BC. Group BF

  2. No effect of continuous i.p. infusion of bupivacaine on postoperative analgesia, pulmonary function and the stress response to surgery

    DEFF Research Database (Denmark)

    Scott, N B; Mogensen, T; Greulich, A;

    1988-01-01

    analogue scale). Postoperative pain, impairment in pulmonary function and increase in serum cortisol and glucose concentrations were not influenced by the i.p. infusion of bupivacaine when compared with saline. This study shows that the i.p. instillation of therapeutically safe doses of bupivacaine...... on entering the peritoneum. The following variables were measured before and at 2-h intervals during the infusion: serum glucose and cortisol concentrations, forced vital capacity, forced expiratory volume in the first second, peak expiratory flow rate and pain at rest, on mobilization and on coughing (visual...

  3. Assessment of the combined approach of N-alkylation and salt formation to enhance aqueous solubility of tertiary amines using bupivacaine as a model drug

    DEFF Research Database (Denmark)

    Nielsen, Anders Bach; Frydenvang, Karla Andrea; Liljefors, Tommy;

    2005-01-01

    Quaternary prodrug types of poorly water-soluble tertiary amines have been shown to exhibit significantly enhanced solubilities as compared to the parent amine. In the present study the combined effect of N-alkylation and salt formation to enhance aqueous solubility of tertiary amines have been...... tertiary amine (up to a factor of 3200 at pH 8). A moderate reduction in solubility with increasing length of the alkyl chain was observed for the iodide salts of the N-alkylated bupivacaine derivatives. In case of the N-methyl-bupivacaine derivative variation of the counterion had a significant impact...

  4. Low-dose spinal neostigmine further enhances the analgesic effect of spinal bupivacaine combined with epidural dexamethasone, following orthopedic surgery

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    Gabriela Rocha Lauretti

    2014-01-01

    Full Text Available Background: Opioids are considered mainstream for combined spinal-epidural anesthesia, but frequently limited by adverse effects. The aim of this study was to examine whether low-dose spinal neostigmine, epidural dexamethasone or their combination enhances analgesia from spinal bupivacaine without adverse effects. Materials and Methods : A total of 60 patients undergoing orthopedic surgery were randomized to one of four groups and evaluated for 24-h after surgery for analgesia (time to first rescue analgesic and rescue analgesic consumption. Patients received 15 mg bupivacaine plus the test drug intrathecally (saline or 1 microgram (μg neostigmine. The epidural test drug was either saline or 10 mg dexamethasone. The Control group (CG received spinal and epidural saline. The Neostigmine group (NG, spinal neostigmine and epidural saline; the Dexamethasone group (DG, spinal saline and epidural dexamethasone; and the Neostigmine-dexamethasone group (NDG, spinal neostigmine and epidural dexamethasone. Results: The CG (282 ± 163 min and NG (524 ± 142 min were similar in their times to first rescue analgesic and analgesic consumption. The time to first rescue analgesic was longer for the DG (966 ± 397 min compared with CG and NG (P < 0.0002, and the DG had less ketoprofen consumption and lower overall visual analogue scale-pain sores compared with CG and NG (P < 0.0005. Addition of 1 mg-neostigmine (NDG resulted in longer time to rescue analgesic (1205 ± 303 min; P < 0.02 and lower ketoprofen consumption (P < 0.05 compared to DG. Sporadic cases of vesical catheterization and emesis were observed, however adverse effects were similar among groups. Conclusion: Spinal 1 microgram (μg neostigmine further enhanced analgesia from spinal bupivacaine combined with epidural dexamethasone, without increasing the incidence of adverse effects.

  5. The effects of lidocaine or a lidocaine-bupivacaine mixture administered into the infraorbital canal in dogs.

    Science.gov (United States)

    Pascoe, Peter J

    2016-07-01

    OBJECTIVE To determine the onset, duration, and extent of regional nerve blocks performed by administration of lidocaine or lidocaine-bupivacaine into the infraorbital canal in dogs. ANIMALS 6 healthy hound-type dogs. PROCEDURES Under general anesthesia, stimulating needles were inserted into the gingiva dorsolateral to both maxillary canine (MC) teeth and the maxillary fourth premolar (MPM4) and second molar (MM2) teeth on the treatment side. A reflex-evoked muscle potential (REMP) was recorded from the digastricus muscle after noxious electrical stimulation at each site. After baseline measurements, 1 mL of 2% lidocaine solution or a 2% lidocaine-0.5% bupivacaine mixture (0.5 mL each) was injected into the infraorbital canal (at approx two-thirds of the canal length measured rostrocaudally). The REMPs were recorded for up to 7 hours. The REMP data for the contralateral (untreated control) canine tooth were used to normalize results for all stimulation sites. RESULTS With both treatments, nerve block for MC teeth on the treated side was achieved by 5 (n = 5 dogs) or 10 (1) minutes after injection, but nerve block for ipsilateral MPM4 and MM2 teeth was successful for only 3 dogs and 1 dog, respectively. Mean duration of nerve blocks for MC teeth was 120 and 277 minutes following injection of lidocaine and lidocaine-bupivacaine, respectively. CONCLUSIONS AND CLINICAL RELEVANCE Local anesthesia, as performed in this study, successfully blocked innervation of MC teeth, but results for MPM4 and MM2 teeth were inconsistent. This specific technique should not be used during tooth extractions caudal to the MC teeth.

  6. Intra-articular morphine versus bupivacaine for knee motion among patients with osteoarthritis: randomized double-blind clinical trial

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    Miriam Bellini Gazi

    Full Text Available CONTEXT AND OBJECTIVE: Osteoarthritis causes pain and disability in a high percentage of elderly people. The aim of the present study was to assess the efficacy of intra-articular morphine and bupivacaine on the joint flexion and extension angles of patients with knee osteoarthritis. DESIGN AND SETTING: A randomized double-blind study was performed at a pain clinic of Universidade Federal de São Paulo. METHODS: Thirty-nine patients with pain for more than three months, of intensity greater than three on a numerical scale (zero to 10, were included. G1 patients received 1 mg (1 ml of morphine diluted in 9 ml of saline, intra-articularly, and G2 patients received 25 mg (10 ml of 0.25% bupivacaine without epinephrine. Pain was assessed on a numerical scale and knee flexion and extension angles were measured after administration of the drugs at rest and during movement. The total amount of analgesic supplementation using 500 mg doses of paracetamol was also determined. RESULTS: No significant difference in pain intensity was observed between G1 and G2. Significant decreases in pain at rest and during movement and significant increases in mean flexion and extension angles were observed in both groups, with no significant difference between the two groups. The mean total amount of paracetamol used over a seven-day period was 3578 mg in G1 and 5333 mg in G2 (P = 0.2355; Mann-Whitney test. CONCLUSION: The analgesic effects of 1 mg of morphine and 25 mg of 0.25% bupivacaine were similar among patients with osteoarthritis of the knee.

  7. Intravenous dexmedetomidine versus clonidine for prolongation of bupivacaine spinal anesthesia and analgesia: A randomized double-blind study

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    Velayudha Sidda Reddy

    2013-01-01

    Full Text Available Background: Alpha 2 -adrenergic agonists have synergistic action with local anesthetics and may prolong the duration of sensory, motor blockade and postoperative analgesia obtained with spinal anesthesia. Aim: The objectives of this study are to compare and evaluate the efficacy of intravenous dexmedetomidine premedication with clonidine and placebo on spinal blockade duration, postoperative analgesia and sedation in patients undergoing surgery under bupivacaine intrathecal block. Materials and Methods: In this prospective, randomized, double-blind placebo-controlled study, 75 patients of the American Society of Anesthesiologists status I or II, scheduled for orthopedic lower limb surgery under spinal anesthesia, were randomly allocated into three groups of 25 each. Group DE received dexmedetomidine 0.5 μgkg−1 , group CL received clonidine 1.0 μgkg−1 and placebo group PL received 10 ml of normal saline intravenously before subarachnoid anesthesia with 15 mg of 0.5% hyperbaric bupivacaine. Onset time and regression times of sensory and motor blockade, the maximum upper level of sensory blockade were recorded. Duration of postoperative analgesia and sedation scores along with side effects were also recorded. Data was analyzed using analysis of variance or Chi-square test, and the value of P < 0.05 was considered statistically significant. Results: The sensory block level was higher with dexmedetomidine (T4 ± 1 than clonidine (T6 ± 1 or placebo (T6 ± 2. Dexmedetomidine also increased the time (243.35 ± 56.82 min to first postoperative analgesic request compared with clonidine (190.93 ± 42.38 min, P < 0.0001 and placebo (140.75 ± 28.52 min, P < 0.0001. The maximum Ramsay sedation score was greater in the dexmedetomidine group than other two groups (P < 0.0001. Conclusion: Premedication with intravenous dexmedetomidine is better than intravenous clonidine to provide intraoperative sedation and postoperative analgesia during bupivacaine

  8. Effects of hypertonic sodium chloride solution on the electrophysiologic alterations caused by bupivacaine in the dog heart

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    Scalabrini A.

    2003-01-01

    Full Text Available The effects of various hypertonic solutions on the intraventricular conduction, ventricular repolarization and the arrhythmias caused by the intravenous (iv injection of bupivacaine (6.5 mg/kg were studied in sodium pentobarbital-anesthetized mongrel dogs. Hypertonic solutions, given iv 5 min before bupivacaine, were 7.5% (w/v NaCl, 5.4% (w/v LiCl, 50% (w/v glucose (2,400 mOsm/l, 5 ml/kg, or 20% (w/v mannitol (1,200 mOsm/l, 10 ml/kg. Bupivacaine induced severe arrhythmias and ventricular conduction and repolarization disturbances, as reflected by significant increases in QRS complex duration, HV interval, IV interval and monophasic action potential duration, as well as severe hemodynamic impairment. Significant prevention against ventricular electrophysiologic and hemodynamic disturbances and ventricular arrhythmias was observed with 7.5% NaCl (percent increase in QRS complex duration: 164.4 ± 21.8% in the non-pretreated group vs 74.7 ± 14.1% in the pretreated group, P<0.05; percent increase in HV interval: 131.4 ± 16.1% in the non-pretreated group vs 58.2 ± 7.5% in the pretreated group, P<0.05; percent increase in monophasic action potential duration: 22.7 ± 6.8% in the non-pretreated group vs 9.8 ± 6.3% in the pretreated group, P<0.05; percent decrease in cardiac index: -46 ± 6% in the non-pretreated group vs -28 ± 5% in the pretreated group, P<0.05. The other three hypertonic solutions were ineffective. These findings suggest an involvement of sodium ions in the mechanism of hypertonic protection.

  9. A comparative study of efficacy of epidural versus interpleural bupivacaine for post operative analgesia after open cholecystectomy

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    RK Yadav

    2014-04-01

    Full Text Available Background The conventional methods of administering the prescribed doses of intramuscular or intravenous analgesics at fixed time intervals results in widely fluctuating and inadequate plasma level leads to poor post operative pain relief. Despite all advances made in the field of medicine, this symptom called “Pain” has not been combated well. Objective The present study was carried out to compare the efficacy of epidural verses interpleural administration of bupivacaine(0.5% with adrenaline for post operative pain relieve in patients undergoing open cholecystectomy. Methods We prospectively randomized and compared the post operative pain relieve with the reference of visual analog score (VAS in patients undergoing elective open cholecystectomy in college of medical sciences-teaching hospital, Bharatpur, Chitwan. Forty adult patients undergoing elective cholecystectomy were divided into two groups. Twenty patients in each group were subjected to a different technique of post-operative analgesia, namely thoracic epidural and interpleural instillation of 0.5% bupivacaine. These two groups were then compared in relation to changes produced in the pain scores, vital parameters and complication and side effects associated with the two techniques. The study was conducted for 24 hour postoperatively. Observation: Both thoracic epidural and interpleural instillation of 0.5% bupivacaine compared favorably with regard to analgesia in the present study. In general, the pain relief following thoracic epidural was more complete compared to interpleural but this was not clinically significant. Conclusion The present study shows that both the techniques are equally effective in providing analgesia following cholecystectomy. However, neither technique rendered the patients completely pain free at all times during first 24 hours. Journal of College of Medical Sciences-Nepal, 2013, Vol-9, No-4, 15-23 DOI: http://dx.doi.org/10.3126/jcmsn.v9i4.10232

  10. Chromatographic comparison of bupivacaine imprinted polymers prepared in crushed monolith, microsphere, silica-based composite and capillary monolith formats.

    Science.gov (United States)

    Oxelbark, Joakim; Legido-Quigley, Cristina; Aureliano, Carla S A; Titirici, Maria-Magdalena; Schillinger, Eric; Sellergren, Börje; Courtois, Julien; Irgum, Knut; Dambies, Laurent; Cormack, Peter A G; Sherrington, David C; De Lorenzi, Ersilia

    2007-08-10

    A comprehensive comparison of five chromatographic stationary phases based on molecularly imprinted polymers is presented. Efficiency, imprinting factors, water compatibility and batch-to-batch reproducibility are discussed for crushed monolith, microspheres, two silica-based composites and capillary monoliths, all imprinted with the local anaesthetic bupivacaine. Synthesis protocol and chromatographic test conditions have been kept fixed within certain limits, in order to provide further insight into the strengths and weaknesses of the different formats. Excluding microparticles, all formats give satisfactory performance, especially in aqueous mobile phases. An assessment of batch-to-batch reproducibility in different mobile phases adds further value to this comparison study.

  11. Phase solubility, 1H NMR and molecular modelling studies of bupivacaine hydrochloride complexation with different cyclodextrin derivates

    Science.gov (United States)

    Jug, Mario; Mennini, Natascia; Melani, Fabrizio; Maestrelli, Francesca; Mura, Paola

    2010-11-01

    A novel method, which simultaneously exploits experimental (NMR) and theoretically calculated data obtained by a molecular modelling technique, was proposed, to obtain deeper insight into inclusion geometry and possible stereoselective binding of bupivacaine hydrochloride with selected cyclodextrin derivatives. Sulphobuthylether-β-cyclodextrin and water soluble polymeric β-cyclodextrin demonstrated to be the best complexing agents for the drug, resulting in formation of the most stable inclusion complexes with the highest increase in aqueous drug solubility. The drug-carrier binding modes with these cyclodextrins and phenomena which may be directly related to the higher stability and better aqueous solubility of complexes formed were discussed in details.

  12. Comparing caudal and penile nerve blockade using bupivacaine in hypospadias repair surgeries in children

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    Mahin Seyedhejazi

    2011-01-01

    Full Text Available Background: Caudal anaesthesia is recommended for most surgical procedures of the lower part of the body, mainly below the umbilicus. It has been well established that a dorsal penile nerve block immediately after surgery decreases postoperative pain in children undergoing hypospadias repair. This study aimed to compare caudal or penile nerve block using bupivacaine in postoperative pain control in hypospadias repair in children. Patients and Methods: After local ethical committee approval and obtaining informed parental consent, 85 American society of Anesthesiologists status I and II patients, aged 6 months to 6 years old, undergoing hypospadias repair, were prospectively enrolled in this study. The patients were randomly divided into the following two groups: Caudal block was performed in 44 and penile block was performed in 41 patients. Cardiorespiratory systems data, analgesic requirement and complications were compared between the groups. Results: There were statistically significant haemodynamic (blood pressureand heart rate alteration during operation in each group (P<0.01. The haemodynamic parameters were stable during operation in successful blocks in both groups. Caudal block success rate is 97.7%, whereas in penile block is 92.6%. Nineteen of 43 patients (44% in caudal group and 29 of 41 patients (70% in penile group received analgesia in the postoperative period and this difference was significant between the two groups (P = 0.025. Conclusions: Without ultrasonography and with blind block, with anatomic landmarks only, the caudal block success rate is high and if there is no contraindication for caudal block, it is the best choice in children under 6 years old (or 25 kg for hypospadias repai.

  13. Continuous thoracic extradural 0.5% bupivacaine with or without morphine: effect on quality of blockade, lung function and the surgical stress response

    DEFF Research Database (Denmark)

    Scott, N B; Mogensen, T; Bigler, D;

    1989-01-01

    Twenty-two patients undergoing upper abdominal surgery were entered into a randomized, double-blind study to receive extradural (T7-T8) 0.5% bupivacaine 9 ml followed by 25 mg h-1 with or without additional extradural morphine (bolus 4 mg plus 0.5 mg h-1), for 16 h after operation. Addition of mo...

  14. Differential analgesic effects of low-dose epidural morphine and morphine-bupivacaine at rest and during mobilization after major abdominal surgery

    DEFF Research Database (Denmark)

    Dahl, J B; Rosenberg, J; Hansen, B L;

    1992-01-01

    elective major abdominal surgery. All patients in addition received systemic piroxicam (20 mg daily). No significant differences were observed between the groups at any assessment of pain at rest (P greater than 0.05), whereas pain in the morphine/bupivacaine group was significantly reduced during...

  15. Postoperative analgesia with intramuscular morphine at fixed rate versus epidural morphine or sufentanil and bupivacaine in patients undergoing major abdominal surgery

    NARCIS (Netherlands)

    Broekema, AA; Veen, A; Fidler, [No Value; Gielen, MJM; Hennis, PJ

    1998-01-01

    We assessed the efficacy and side effects of postoperative analgesia with three different pain regimens in 90 patients undergoing major abdominal surgery. The patients were randomly assigned to one of three groups: epidural morphine (EM) or sufentanil (ES), both combined with bupivacaine, or IM morp

  16. Spinal anaesthesia with articaine 5% vs bupivacaine 0.5% for day-case lower limb surgery: A double-blind randomized clinical trial

    NARCIS (Netherlands)

    T. Dijkstra; J.A. Reesink; B.C. Verdouw; W.S.C.J.M. van der Pol; T. Feberwee; A.G. Vulto (Arnold)

    2008-01-01

    textabstractBackground. A local anaesthetic with fast onset and short reliable duration of anaesthesia may be preferable for out-patient lower limb surgery. Articaine is believed to act faster and to have a shorter duration of action than bupivacaine, but there are no conclusive data available. The

  17. Analgesic control after hip arthroscopy: a randomised, double-blinded trial comparing portal with intra-articular infiltration of bupivacaine.

    LENUS (Irish Health Repository)

    Baker, Joseph F

    2011-06-07

    Abstract: The optimum anaesthetic and analgesic management following hip arthroscopy is yet to be determined. There is, in addition, some concern over the use of intraarticular local anaesthetic. We compared the analgesic efficacy of intra-articular infiltration compared with portal infiltration of bupivacaine following hip arthroscopy. Patients were randomised to receive either 10ml of 0.25% bupivacaine either into the joint or around the portal sites following completion of surgery. 73 patients were recruited (40 intra-articular). The portal infiltration group required significantly more rescue analgesia immediately after surgery (2.33mg vs.0.57mg, p=0.036). Visual Analogue Scale pain scores were not significantly different at 1 and 2 hours following surgery, but at 6 hours the portal group had significantly lower VAS scores (p=0.0036). We believe that the initial pain following surgery results from capsular injury and this explains the need for more rescue analgesia in the portal infiltration group. Further work is needed to establish the ideal regimen. A combination of portal and intra-articular infiltration may be the most efficacious.

  18. The hemodynamic effects of spinal block with low dose of bupivacaine and sufentanil in patients with low myocardial ejection fraction.

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    Mehdi Sanatkar

    2013-07-01

    Full Text Available The aim of this study was to assess the effect of spinal block with low dose of bupivacaine and sufentanil on patients with low cardiac output who underwent lower limb surgery. Fifteen patients who had ejection fraction less than 40% (group 1 were compared with 65 cases with ejection fraction more than 40% (group 2 in our study. Our subjects underwent spinal block with 7.5 mg hyperbaric bupivacaine 0.5% and 5 µg sufentanil. We recorded early events such as hypotension, bradycardia, vasopressor need and ST segment change in our cases. The average mean arterial pressure decreased 13% (110 mmHg to 95.7 mmHg in group 1 and 20% (160 mmHg to 128 mmHg in group 2 (P<0.001. Hypotension due to spinal anesthesia was observed in none of our subjects in both groups and none of our cases need to vasopressor support. All patients remained alert, and no ST segment changes were observed in two groups. In our study none of subjects complained of pain intraoperatively. The subjects were without complaints during the spinal anesthetic in both groups. Spinal block with low dose local anesthetic and sufentanil was a safe and effective method for lower limb surgery in patients with low ejection fraction.

  19. The Safety of EXPAREL ® (Bupivacaine Liposome Injectable Suspension Administered by Peripheral Nerve Block in Rabbits and Dogs

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    Brigitte M. Richard

    2012-01-01

    Full Text Available A sustained-release DepoFoam injection formulation of bupivacaine (EXPAREL, 15 mg/mL is currently being investigated for postsurgical analgesia via peripheral nerve block (PNB. Single-dose toxicology studies of EXPAREL (9, 18, and 30 mg/kg, bupivacaine solution (Bsol, 9 mg/kg, and saline injected around the brachial plexus nerve bundle were performed in rabbits and dogs. The endpoints included clinical pathology, pharmacokinetics, and histopathology evaluation on Day 3 and Day 15 (2/sex/group/period. EXPAREL resulted in a nearly 4-fold lower Cmax versus Bsol at the same dose. EXPAREL was well tolerated at doses up to 30 mg/kg. The only EXPAREL-related effect seen was minimal to mild granulomatous inflammation of adipose tissue around nerve roots (8 of 24 rabbits and 7 of 24 dogs in the brachial plexus sites. The results indicate that EXPAREL was well tolerated in these models and did not produce nerve damage after PNB in rabbits and dogs.

  20. A CLINICAL STUDY OF CLONIDINE AS AN ADJUVANT TO INTRATHECAL 0.5% HYPERBARIC BUPIVACAINE FOR TIBIAL INTRAMEDULLARY NAILING

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    Madhava Reddy

    2015-11-01

    Full Text Available : BACKGROUND: Postoperative pain may produce a range of detrimental acute and chronic effects. Subarachnoid block provided by Bupivacaine alone may be too short for the planned postoperative analgesia. Intrathecal Clonidine in varying dosages has been used as an additive to local anaesthetics to prolong the duration of subarachnoid block. AIM: Studies using lower doses of Clonidine i.e. <1mcg/kg are minimal. This study was conducted to evaluate the safety and efficacy of two different doses of intrathecal Clonidine as an adjuvant to 0.5% hyperbaric Bupivacaine to prolong the duration of analgesia. METHODS: In this randomized clinical study 60 patients scheduled for Tibial intramedullary nailing were divided into two groups. Group 1 received 0.5% Hyperbaric Bupivacaine 2.5ml with 0.5ml of 0.5mcg/kg Clonidine and Group 2 received 0.5% Hyperbaric Bupivacaine 2.5ml with 0.5ml of 1mcg/kg Clonidine. Onset of sensory and motor block, maximum level of sensory blockade attained and time for the same were recorded. Sedation score was noted. Vital parameters were recorded preoperatively. Duration of analgesia and time to recovery from motor and sensory blockade were recorded .Patients were observed for any adverse events and treated accordingly. RESULTS: The onset of sensory block in group 1 and group 2 was 2.17±0.36 min and 1.58±0.35 min respectively. Time to onset of motor block was 3.05±0.36 min in group 1 and 2.33±0.50 min in group 2. Total duration of sensory block was noted to be 258.17±10.21min and 289.33±15.24 min in group 1 and group 2 respectively. Total duration of motor block in group 1 and 2 were 228.83±10.96 min and 260.33±14.74 min. The duration of analgesia was 306.33±18.24 min in group 1 and 351.00±15.83 min in group 2. Hemodynamically no statistically significant variations were noted. Sedations scores were similar. No other untoward complications were observed. CONCLUSION: Both the doses of Clonidine as an adjuvant prolong the

  1. COMPARISON OF EPIDURAL BUPIVACAINE; FENTANYL AND THEIR COMBINATION FOR POSTOPERATIVE ANALGESIA IN LOWER ABDOMINAL AND LOWER EXTREMITY SURGERY: A PROSPECTIVE, RANDOMIZED, DOUBLE BLIND CONTROLLED TRIAL

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    Purba

    2016-03-01

    Full Text Available BACKGROUND Epidural analgesia with local anaesthetics and opioids provide good control of postoperative pain in lower abdominal and lower extremity surgery. AIM To evaluate and compare the analgesic action and adverse effects of epidural bupivacaine, fentanyl and their combination in postoperative period. METHODS 75 patients undergoing elective infraumbilical surgery were allocated in three groups in a randomized double blinded fashion. Postoperative analgesia was maintained with continuous infusion of epidural drug in the following manner: Group B: Injection Bupivacaine 0.125% @ 0.1mL/kg/hr through epidural route; Group F: Injection Fentanyl 4µg/mL @ 0.1mL/kg/hr through epidural route; Group BF: Injection Bupivacaine 0.0625% and Fentanyl 2µ/mL @ 0.1mL/kg/hr through epidural route. RESULTS VAS score were almost similar in all three groups at 00, 04, 08hrs and not clinically significant at that point of time. VAS score showed significant difference at 12, 20 and 24 hrs, being persistently lower in Gr BF than Gr B and Gr F. According to VRS Scale Score at 04 hrs majority of patients of all three groups had mild-to-moderate pain (p=0.278. At 08 hrs, 24% (p=0.082, 12 hrs 60% (<0.001, 16 hrs 68% (<0.001, 20 hrs 88% (<0.001 and 24 hrs 84% (<0.001 of Gr BF patients were pain free which are clinically significant. At the end of 08, 12, 16, 20, 24 postoperative hours, no patients of any groups had residual motor paralysis. Rescue analgesic needed in Gr BF patients were significantly less than other two groups. CONCLUSION Combined bupivacaine and fentanyl infusion through an epidural route provides better analgesia in comparison to bupivacaine and fentanyl alone. Total drug, rescue analgesic requirement and adverse effects are much lower in combined group.

  2. COMPARATIVE STUDY OF BUPIVACAINE 0.25% VERSUS ROPIVACAINE 0.5% IN TRANSVERSUS ABDOMINIS PLANE BLOCK FOR POSTOPERATIVE ANALGESIA IN LOWER ABDOMINAL SURGERIES: A RANDOMISED CONTROLLED TRIAL

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    Neha

    2014-04-01

    Full Text Available BACKGROUND: Transversus Abdominis Plane Block (TAPB is a regional anesthesia technique. It provides analgesia after lower abdominal surgery particularly where parietal wall pain forms major component of pain. It allows sensory blockade of lower abdominal wall skin and muscles via local anesthetic deposition above Transversus Abdominis muscle. We evaluated efficacy of unilateral TAPB with bupivacaine and ropivacaine for postoperative analgesia in lower abdominal surgeries like hernia repair, appendicectomy in a hospital based, single blind, and prospective, randomized controlled clinical trial. METHOD: 75 adult patients undergoing elective unilateral lower abdominal surgery were randomized to undergo TAPB with ropivacaine (n = 25 or bupivacaine (n = 25 or Normal saline (n = 25. At end of surgery performed under spinal anesthesia unilateral TAPB on side of surgery was performed using 20 ml of 0.5 % ropivacaine or 0.25 % bupivacaine or saline. Each patient was assessed postoperatively by a blinded investigator in post-anesthesia care unit every 5 minutes for half an hour, then every 15 minutes till 2 hours and at 4, 6, 12, 24, 48 hours postoperatively in ward. RESULT: Mean duration of analgesia was 420.6 minutes with SD of +14.01 in Bupivacaine group and 2187 minutes with SD of +1011.09 in Ropivacaine group which was found to be statistically significant. CONCLUSION: Hence 0.5% ropivacaine provided longer duration of analgesia than 0.25 % bupivacaine when used in TAPB on patients of lower abdominal surgeries. There were no complications attributable to TAPB or drugs under study

  3. Efficacy of lipophilic vs lipophobic opioids in addition to hyperbaric bupivacaine for patients undergoing lower segment caeserean section

    Science.gov (United States)

    Agrawal, Amit; Asthana, Veena; Sharma, J. P.; Gupta, Vineeta

    2016-01-01

    Background: Subarachnoid block is the preferred technique for providing anesthesia for patients undergoing cesarean section. Various pharmacological agents in added to local anesthetics (LA) modify their original effects in terms of block characteristics and quality of analgesia. However, there is ongoing debate about this practice of using adjuncts with LA. We tested whether addition of lipophilic versus lipophobic opioids to LA gives any clinical benefits to maternal and fetal outcome when used in these patients requiring spinal anesthesia. Subjects and Methods: Sixty American Society of Anesthesiologists I and II parturients, undergoing elective cesarean section requiring subarachnoid block, were included in our study. The parturients were allocated randomly to three groups of 20 each to receive bupivacaine 12.5 mg (Group I), bupivacaine 12.5 mg + morphine 0.2 mg (Group II), bupivacaine 12.5 mg + fentanyl 25 μg (Group III), preservative free physiological saline 0.9% was added to all the solutions to achieve a total volume of 4 ml. The parameters studied were the time of onset, sensory level of the block achieved, total duration of analgesia, any need of rescue analgesics, maternal side effects, and fetal outcome. Results: Onset of block was early 4.30 ± 0.12 min in Group III as compared to Group I 4.64 ± 0.28 min and Group II 4.505 ± 0.22 min. Mean duration of analgesia (hours) was higher in Group II 15.91 ± 0.96 h as compared to Group I 1.95 ± 0.55 h and Group III 4.39 ± 0.2 h. Incidence of nausea, vomiting, and shivering was more in the control group as compared to study groups, whereas sedation and pruritus were seen more in the study groups. No adverse effects on fetus were seen with use of opioids and comparable Apgar scores were noted. Conclusion: Addition of intrthecal fentanyl causes rapid onset of block whereas intrathecal morphine provides prolonged analgesia with comparable neonatal wellbeing. PMID:27746526

  4. Bupivacaina ou bupivacaina e morfina intra-articular pós reconstrução do LCA Intra-articular bupivacaine or bupivacaine and morphine after ACL reconstruction

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    Marcus Vinicius Danieli

    2012-01-01

    Full Text Available OBJETIVO: A cirurgia de reconstrução do LCA é hoje uma das mais realizadas e o controle da dor pós-operatória faz parte das prioridades do cirurgião. Dentro do arsenal de analgesia temos a aplicação intra-articular de drogas, sendo a mais estudada a bupivacaina associada ou não a morfina. Neste estudo comparamos a aplicação de bupivacaina associada ou não a morfina com grupo controle, após reconstrução do LCA com enxerto de tendões flexores. MÉTODOS: Quarenta e cinco pacientes foram randomizados em três grupos, sendo que no grupo I foi aplicado ao fim da cirurgia 20ml de soro fisiológico intra-articular, no grupo II 20ml de bupivacaina 0,25% e no grupo III bupivacaina 0,25% associado a 1mg de morfina. Os grupos foram avaliados quanto ao grau de dor pela escala analógica visual com 6, 24 e 48 horas de pós-operatório. RESULTADOS: O grupo III teve menos dor em todos os momentos, porém a dor não foi tão intensa em todos os grupos a ponto de necessitar medicações extras além do protocolo estabelecido. CONCLUSÃO: A aplicação intra-articular destas medicações pós-reconstrução do LCA com enxerto dos tendões flexores quando realizada sob anestesia raquideana não traz vantagens suficientes para fazer seu uso regularmente. Nível de Evidência II, Ensaio Clínico Randomizado de Menor Qualidade.OBJECTIVE: Reconstructive surgery of the ACL is one of the most commonly performed surgeries today and the control of postoperative pain is part of the priorities of the surgeon. Within the arsenal of analgesia we have the intra-articular application of drugs, and the most studied one is bupivacaine with or without morphine. This study compared the application of bupivacaine with or without morphine with a control group after ACL reconstruction with flexor tendon graft. METHODS: Forty-five patients were randomized into three groups: in group I, 20 ml of saline were applied intra-articularly at the end of the surgery; in group II

  5. COMPARATIVE STUDY OF 0.0625% BUPIVACAINE WITH FENTANYL VERSUS 0.1% ROPIVACAINE WITH FENTANYL AS CONTINUOUS EPIDURAL INFUSION IN LABOUR ANALGESIA

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    L. Raghavan

    2016-07-01

    Full Text Available BACKGROUND We undertook this study to see whether ropivacaine offers any significant advantage over bupivacaine in our institutional practice with regards to obstetrical outcome and whether a changeover from bupivacaine to ropivacaine was warranted. This study compares the efficacy of Ropivacaine and Bupivacaine regarding pain relief, motor block and labour characteristics. AIM The objective of the current study is to compare the efficacy of equipotent doses of ropivacaine with fentanyl and bupivacaine with fentanyl as continuous infusion in labour epidural analgesia with respect to Quality of pain relief, Motor Block, Duration of labour, Mode of delivery - Spontaneous Vaginal/Assisted with forceps/Caesarean Section, Neonatal outcome – APGAR score, Complications if any. METHODS AND MATERIALS The study was a prospective randomized double blinded trial involving 60 parturients (30 in each group attending the Dept. of Obstetrics and Gynaecology, Chengalpattu Medical College Hospital. Informed consent was obtained. Detailed history of the patient was collected. Routine investigations were done as per our hospital labour protocol. Patients fulfilling the inclusion criteria and who gave consent were then randomly allocated to one of the study groups on the basis of computerized randomized list. STATISTICAL ANALYSIS The statistical analysis was done using SPSS version 16 for windows. The profiles of the cases were compared with the treatment allocation in order to check if there was any significant difference. Chi-square test for association was used to compare categorical variables between treatment allocations. RESULTS The observations of this study show that pain relief offered by epidural ropivacaine is as good and effective as epidural bupivacaine. Also the duration of labour, mode of delivery, neonatal outcome and complications are comparable between the two groups. CONCLUSION Findings suggest that the use of epidural ropivacaine for labour

  6. ED50 and ED95 of Intrathecal Bupivacaine Coadministered with Sufentanil for Cesarean Delivery Under Combined Spinal-epidural in Severely Preeclamptic Patients

    Institute of Scientific and Technical Information of China (English)

    Fei Xiao; Wen-Ping Xu; Xiao-Min Zhang; Yin-Fa Zhang; Li-Zhong Wang; Xin-Zhong Chen

    2015-01-01

    Background:Spinal anesthesia was considered as a reasonable anesthetic option in severe preeclampsia when cesarean delivery is indicated,and there is no indwelling epidural catheter or contraindication to spinal anesthesia.However,the ideal dose of intrathecal bupivacaine has not been quantified for cesarean delivery for severe preeclamptic patients.This study aimed to determine the ED50 and ED95 of intrathecal bupivacaine for severely preeclamptic patients undergoing elective cesarean delivery.Methods:Two hundred severely preeclamptic patients are undergoing elective cesarean delivery under combined spinal-epidural anesthesia enrolled in this randomized,double-blinded,dose-ranging study.Patients received 4 mg,6 mg,8 mg,or 10 mg intrathecal hyperbaric bupivacaine with 2.5 μg sufentanil.Successful spinal anesthesia was defined as a T6 sensory level achieved within 10 minutes after intrathecal drug administration and/or no epidural supplement was required during the cesarean section.The ED50 and ED95 were calculated with a logistic regression model.Results:ED50 and ED95 ofintrathecal bupivacaine for successful spinal anesthesia were 5.67 mg (95% confidence interval [CI]:5.20-6.10 mg) and 8.82 mg (95% CI:8.14-9.87 mg) respectively.The incidence of hypotension in Group 8 mg and Group 10 mg was higher than that in Group 4 mg and Group 6 mg (P < 0.05).The sensory block was significantly different among groups 10 minutes after intrathecal injection (P < 0.05).The use of lidocaine in Group 4 mg was higher than that in other groups (P < 0.05).The use of phenylephrine in Group 8 mg and Group 10 mg was higher than that in the other two groups (P < 0.05).The lowest systolic blood pressure before the infant delivery of Group 8 mg and Group 10 mg was lower than the other two groups (P < 0.05).The satisfaction of muscle relaxation in Group 4 mg was lower than other groups (P < 0.05).There was no significant difference in patients' satisfaction and the newborns

  7. A comparison of intrathecal dexmedetomidine, clonidine, and fentanyl as adjuvants to hyperbaric bupivacaine for lower limb surgery: A double blind controlled study

    Directory of Open Access Journals (Sweden)

    Vidhi Mahendru

    2013-01-01

    Aim: The purpose of this study was to compare the onset, duration of sensory and motor block, hemodynamic effects, postoperative analgesia, and adverse effects of dexmedetomidine, clonidine, and fentanyl used intrathecally with hyperbaric 0.5% bupivacaine for spinal anesthesia. Settings and Design: The study was conducted in prospective, double blind manner. It included 120 American Society of Anesthesiology (ASA class I and II patients undergoing lower limb surgery under spinal anesthesia after approval from hospital ethics committee with written and informed consent of patients. Materials and Methods: The patients were randomly allocated into four groups (30 patients each. Group BS received 12.5 mg hyperbaric bupivacaine with normal saline, group BF received 12.5 mg bupivacaine with 25 g fentanyl, group BC received 12.5 mg of bupivacaine supplemented 30 g clonidine, and group BD received 12.5 mg bupivacaine plus 5 g dexmedetomidine. The onset time to reach peak sensory and motor level, the regression time of sensory and motor block, hemodynamic changes, and side effects were recorded. Results: Patients in Group BD had significantly longer sensory and motor block times than patients in Groups BC, BF, and BS with Groups BC and BF having comparable duration of sensory and motor block. The mean time of two segment sensory block regression was 147 ± 21 min in Group BD, 117 ± 22 in Group BC, 119 ± 23 in Group BF, and 102 ± 17 in Group BS (P < 0.0001. The regression time of motor block to reach modified Bromage zero (0 was 275 ± 25, 199 ± 26, 196 ± 27, 161 ± 20 in Group BD, BC, BF, and BS, respectively (P < 0.0001. The onset times to reach T8 dermatome and modified Bromage 3 motor block were not significantly different between the groups. Dexmedetomidine group showed significantly less and delayed requirement of rescue analgesic. Conclusions: Intrathecal dexmedetomidine is associated with prolonged motor and sensory block, hemodynamic stability, and reduced

  8. Liposomal bupivacaine infiltration into the transversus abdominis plane for postsurgical analgesia in open abdominal umbilical hernia repair: results from a cohort of 13 patients

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    Feierman DE

    2014-08-01

    Full Text Available Dennis E Feierman, Mark Kronenfeld, Piyush M Gupta, Natalie Younger, Eduard Logvinskiy Department of Anesthesiology, Maimonides Medical Center, Brooklyn, NY, USA Background: Achieving adequate control of postsurgical pain remains a challenge in patients undergoing abdominal surgery. Transversus abdominis plane (TAP infiltration has been shown to provide postsurgical analgesia following lower abdominal surgery. We assessed the safety and efficacy of a prolonged-release liposomal formulation of the local anesthetic bupivacaine administered via infiltration into the TAP in a cohort of patients undergoing open abdominal umbilical hernia repair. Methods: Patients included in the study were 18–75 years of age, had American Society of Anesthesiologists physical classification status 1–3, and underwent open abdominal umbilical hernia repair with ultrasound-guided TAP infiltration immediately after surgery using an equal-volume bilateral infusion of liposomal bupivacaine 266 mg (diluted to 30 mL in normal saline. Outcome measures included patient-reported pain intensity (11-point numeric rating scale, satisfaction with postsurgical analgesia (5-point Likert scale, incidence of opioid-related adverse events, and time to first use of supplemental rescue analgesia. Results: Thirteen patients underwent surgery and received bilateral TAP infiltration with liposomal bupivacaine; TAP infiltration failed in the first patient. Mean numeric rating scale pain scores were 0.6 immediately before TAP infiltration and remained 2.3 through 120 hours after infiltration; mean scores at 120 hours and 10 days were 0.9 and 0.4, respectively. Ten patients (77% required supplemental analgesia; median time to first use was 11 hours. At discharge and day 10, 54% and 62% of patients, respectively, were “extremely satisfied” with postsurgical analgesia (Likert score 5. There were no opioid-related or other adverse events. Conclusion: Although the current study was

  9. Ba2+- and bupivacaine-sensitive background K+ conductances mediate rapid EPSP attenuation in oligodendrocyte precursor cells.

    Science.gov (United States)

    Chan, Chu-Fang; Kuo, Tzu-Wei; Weng, Ju-Yun; Lin, Yen-Chu; Chen, Ting-Yu; Cheng, Jen-Kun; Lien, Cheng-Chang

    2013-10-01

    Glutamatergic transmission onto oligodendrocyte precursor cells (OPCs) may regulate OPC proliferation, migration and differentiation. Dendritic integration of excitatory postsynaptic potentials (EPSPs) is critical for neuronal functions, and mechanisms regulating dendritic propagation and summation of EPSPs are well understood. However, little is known about EPSP attenuation and integration in OPCs. We developed realistic OPC models for synaptic integration, based on passive membrane responses of OPCs obtained by simultaneous dual whole-cell patch-pipette recordings. Compared with neurons, OPCs have a very low value of membrane resistivity, which is largely mediated by Ba(2+)- and bupivacaine-sensitive background K(+) conductances. The very low membrane resistivity not only leads to rapid EPSP attenuation along OPC processes but also sharpens EPSPs and narrows the temporal window for EPSP summation. Thus, background K(+) conductances regulate synaptic responses and integration in OPCs, thereby affecting activity-dependent neuronal control of OPC development and function.

  10. COMPARATIVE STUDY OF HYPERBARIC BUPIVACAINE AND PLAIN ROPIVACAINE WITH FENTANYL AS AN ADJUVANT FOR SPINAL ANAESTHESIA IN CEASAREAN SECTION

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    Vindhya

    2014-07-01

    Full Text Available : Spinal anaesthesia is very popular for cesarean section and currently both hyperbaric and plain solutions of local anaesthesia along with opioids are used. Difference in the baricity can affect the intrathecal distribution of local anaesthetics. AIM: We compared the effects of intrathecal hyperbaric (heavy 0.5% bupivacaine and isobaric (plain 0.75%ropivacaine combined with 25micro grams fentanyl regarding the degree of sensory and motor block, quality of intraoperative anaesthesia, side effects and post-operative analgesia in patients undergoing cesarean section by doing a randomized controlled study. MATERIALS AND METHODS: Sixty women undergoing caesarean section were randomized into two groups, Group BF (n=30, group RF (n= 30. Group BF received 10 mg (2 ml of 0.5% hyperbaric bupivacaine with 25µgs of preservative free fentanyl and Group RF received 15mgs (2ml 0.75% plain Ropivacaine (isobaric with 25µgs of fentanyl for spinal anaesthesia. In case of insufficient blocks both the groups were supplemented with analgesic dose of ketamine. RESULTS: No difference was observed in onset time, highest level and recovery of sensory block. Recovery of motor block was slightly prolonged in RF group. The incidence of insufficient block requiring ketamine supplementation and duration of postoperative analgesia was same in both groups. The side effects were also similar in both the groups except for hypotension lower systolic pressure in BF group. The neonatal outcome was unaffected. CONCLUSION: In this study we did not find any difference in the two groups despite difference in density suggesting that the spread of spinal solution is not dependent on density in patients undergoing caesarean section.

  11. Bupivacaine can enhance lysosomal activity in mouse muscle myoblasts%布比卡因增强小鼠成肌细胞溶酶体的活性

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    熊静薇; 毛雨; 李荣荣; 丁正年

    2015-01-01

    Objective To investigate the effects of bupivacaine on lysosomal abundance and activity in mouse muscle myoblasts.Methods Mouse myoblasts C2C12 was randomly divided into control group (without any treatment) and bupivacaine group (treated with bupivacaine 600 μ mol/L for 6 h).After then,the changes of lysosomal pH was assessed by LysoSensor pH indicator.The content of lysosomes was detected by LysoTracker probe.The expression of lysosomal-associated membrane protein-1 (LAMP-1) and Cathepsin B was detected by Western blot analysis.The activity of lysosomal proteolytic enzymes Cathepsin B was determined by MagicRed assay kit.Results Bupivacaine did not affect lysosomal pH.However,compared with the controls,lysosomal abundance was significantly increased 15.15% following bupivacaine treatment(P<0.01).Moreover,protein expression levels of LAMP-1 and Cathepsin B were significantly upregulated 36.41% and 35.29% respetctively by bupivacaine (P<0.01).Furthermore,the activity of Cathepsin B was significantly increased 23.74% by bupivacaine(P<0.01).Conclusions Bupivacaine increased lysosomal content and enhance lysosomal activity in mouse muscle myoblasts.%目的 探讨局部麻醉药布比卡因对小鼠成肌细胞溶酶体的影响. 方法 将体外培养的小鼠成肌细胞C2C12分为2组.对照组:不加任何药物;布比卡因组:以600μmol/L布比卡因刺激细胞6h.实验结束后,用LysoSensor探针评价溶酶体腔pH,用LysoTrackor探针检测溶酶体含量,用蛋白免疫印迹法检测溶酶体相关膜蛋白-1(LAMP-1)和溶酶体蛋白水解酶Cathepsin B的表达水平,并以MagicRed染色法测定Cathepsin B的活性.结果 布比卡因对溶酶体腔pH没有影响.但是,与对照组相比,布比卡因组溶酶体含量增加15.15% (P<0.01),LAMP-1与Cathepsin B表达量分别增加36.41%、35.29% (P<0.01),Cathepsin B活性增加23.74%(P<0.01).结论 布比卡因能增加小鼠成肌细胞溶酶体含量,增强溶酶体活性.

  12. A clinical study of the effectiveness of continuous epidural labour analgesia for vaginal delivery with 0.0625% bupivacaine with 0.0002% fentanyl

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    Vijay Kanna

    2015-10-01

    Results: The onset of analgesia was significantly faster in 0.0625% bupivacaine with 0.0002% fentanyl (9.7 minutes. A greater proportion of parturient achieved a maximum level of analgesia unto T8. The duration of analgesia was also significantly longer. The effectiveness of analgesia was better. There were no significant cardiovascular changes or any motor blockade. The side effects were mild sedation and in the parturient who received fentanyl. The mode of delivery and the Apgar scores of the neonates at 1 and 5 minutes were comparable. Conclusions: It was concluded that continuous lumbar epidural analgesia with 8 ml of 0.0625% bupivacaine with 2 and micro;g of fentanyl improved the quality and duration of analgesia without producing any adverse effects on the mother or on the neonate. [Int J Res Med Sci 2015; 3(10.000: 2553-2560

  13. Immediate and prolonged effects of pre- versus postoperative epidural analgesia with bupivacaine and morphine on pain at rest and during mobilisation after total knee arthroplasty

    DEFF Research Database (Denmark)

    Dahl, J B; Daugaard, J J; Rasmussen, B;

    1994-01-01

    Thirty-two patients scheduled for total knee arthroplasty were randomized to receive an identical epidural blockade initiated 30 min before surgical incision (N = 16), or at closure of the surgical wound (N = 16). Before induction of general anaesthesia the epidural catheter was tested...... with bupivacaine 7.5 mg.ml-1, 2 ml. General anaesthesia was induced with thiopentone, pancuronium or atracurium, and fentanyl 0.1-0.3 mg, and maintained with N2O/O2 and enflurane. The epidural regimen consisted of a bolus of 16 ml of bupivacaine 7.5 mg.ml-1 plus morphine 2 mg, and continuous infusion......, during or after cessation of the epidural regimen. These results do not suggest timing of analgesia with a conventional, continuous epidural regimen to be of major clinical importance in patients undergoing total knee arthroplasty....

  14. RANDOMISED CONTROLLED STUDY COMPARING A 0.75% ROPIVACAINE TO A CONVENTIONAL DOSE OF HYPERBARIC BUPIVACAINE FOR CESARIAN SECTION BY EPIDURAL ANALGESIA

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    Porika

    2015-09-01

    Full Text Available Central neuraxial blocked is one of the safest and efficacious methods of anaesthesia and analgesia. It has the added advantage of prolonged pain relief into the postoperative period. Epidural analgesia has increased steadily in popularity when compared to spinal anaesthes ia due to its neurological consequences and improved post - operative analgesia with epidural Opioids and as a consequence decreased side effects and prolonged the duration of analgesia. Present study is undertaken to compare hemodynamic and analgesic charac teristics using a 0.75% ropivacaine to a conventional dose of 0.5% bupivacaine for cesarean section under epidural anaesthesia. This study was conducted in ASA Grade I 50 singleton parturient to compare hemodynamics, APGAR scores and analgesic characterist ics of ropivacaine and bupivacaine. We have observed that the onset of sensory blockade was slower with ropivacaine and the duration of sensory blockade was also less. Whereas there was no significant change in haemodynamics and APGAR scores with both the drugs.

  15. COMPARATIVE STUDY ON POST - OPERATIVE ANALGESIA IN LOWER LIMB ARTHROPLASTIES WITH CONTINUOUS EPIDURAL INFUSION OF 0.125% BUPIVACAINE AND TWO DIFFERENT NARCOTIC ANALGESICS FENTANYL AND SUFENTANIL

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    Rajeev

    2015-02-01

    Full Text Available Present study was carried out to compare and evaluate the effect of fentany and sufentanil in combination of bupivacaine on postoperative pain relief and possible side effects if any in patients operated for hip and knee arthroplasties. We randomly selected sixty patients of ASA grade I - III of age 18 to 75 years divided in to two groups. Group – I Received2.5 μg/ml fentanyl along with 0.125% bupivacaine as a continuous epidural infusion at the rate of 5 ml/hr up to 48 hr after the surgery. Group - II Received 0.25 μg/ml sufentanil along with 0.125% bupivacaine as a continuous epidural infusion at the rate of 5 ml/hr up to 48 hr after the surgery. Analgesia was assessed by Visual analogue scale and motor block if any by Bromage scale. Haemodynamics and respiratory parameters were recorded and side effects if any were noted. In group I mean VAS score during rest was 27.0 +/ - 4.8 and mean VAS score during movement was 33.5+/ - 4.9 in group II mean VAS score during rest was 20.8+/ - 4.9 and mean VAS score during movement was 27.7+/ - 5.2. T he dynamic pain VAS score showed a statistically significant difference between two groups . haemodynamics parameters were similar in both groups. Thus group II patients received sufentanil along with 0.125% bupivacaine had better post - operative analgesia d uring movement as well as at rest without respiratory depression or significant side effects.

  16. Ultrasound guided peritubal infiltration of 0.25% Bupivacaine versus 0.25% Ropivacaine for postoperative pain relief after percutaneous nephrolithotomy: A prospective double blind randomized study

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    Geeta P Parikh

    2014-01-01

    Full Text Available Background and Aim: Percutaneous nephrolithotomy (PCNL is a common for managing renal calculi. Pain in the initial post operatie period is relieved by infiltration of local anaesthetic around the nephrostomy tract.We aimed to compare the analgesic efficacy of bupivacaine and ropivacaine. Methods: A total of 100 adult patients undergoing elective PCNL- under balanced general anaesthesia were randomly divided into bupivacaine group (Group B and ropivacaine group (Group R. After completion of procedure, 23G spinal needle was inserted at 6 and 12 O′clock position under ultrasonic guidance up to renal capsule along the nephrostomy tube. A volume of 10 ml of either 0.25% bupivacaine or 0.25% ropivacaine solution was infiltrated in each tract while withdrawing the needle. Post-operative pain was assessed using visual analogue scale (VAS and dynamic visual analogue scale (D-VAS for initial 24 h. Intravenous tramadol was given as rescue analgesia when VAS >4. Time to first rescue analgesic, number of doses and total amount of tramadol required in initial 24 h and side-effects were noted. Results: Visual analogue scale and D-VAS at 6 h and 8 h in Group B was significantly higher than Group R. Mean time to first rescue analgesia in Group R was significantly longer than Group B. Mean number of doses of tramadol and total consumption of tramadol in 24 h was less in Group R, though not statistically significant. Conclusion: Peritubal infiltration of 0.25% ropivacaine infiltration along the nephrostomy tract is more effective than 0.25% bupivacaine in alleviating initial post-operative pain after PCNL.

  17. Comparing the analgesic effect of caudal and ilioinguinal iliohypogastric nerve blockade using bupivacaine-clonidine in inguinal surgeries in children 2-7 years old

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    Mahin Seyedhejazi

    2014-01-01

    Full Text Available Background: We compared the analgesic effects of caudal and ilioinguinal-iliohypogastric nerve block using bupivacaine-clonidine performed in children undergoing inguinal hernia repair. The ilioinguinal-iliohypogastric nerve block provides excellent pain relief for operations on the inguinal region, including emergency procedures (e.g. strangulated inguinal hernia with intestinal obstruction. It should be preferred to caudal block for these procedures. Materials and Methods: After local ethics committee approval and written parental consent, 67 ASA class I - II patients aged between 2-7 years old scheduled for elective inguinal hernia repair were allocated randomly into two groups after general anesthesia with same drugs in both groups. Group C received caudal block with 1 ml/kg bupivacaine 0.25% combined with 1 μg/kg clonidine, and group I received ilioinguinal- iliohypogastric nerve block with 0.3 ml /kg bupivacaine 0.25% combined with 1 μg/kg clonidine. Blood pressure and heart rate were documented every 5 minutes. Post-operative analgesia, analgesic use and side-effects were assessed during first 24 hours. Results: In group C, 7 / 34 and in group I, 12/33 patients required post-operative analgesia (P = 0.174. Five patients (15.5% in group I and one patient (2.94% in group C had severe pain after operation. Systolic and diastolic blood pressure decreased during operation, but the differences between two groups were not significant (P = 0.176, P = 0.111. Heart rate changes between two groups were insignificant (P = 0.182. Conclusion: It seems that in children, caudal epidural block and ilioinguinal - iliohypogastric nerve block using bupivacaine-clonidine have comparable effects on analgesia, severity of pain and hemodynamic changes during and after surgery on inguinal region.

  18. A COMPARATIVE STUDY OF THE DIFFERENT DOSES OF MAGNESIUM SULPHATE AND FENTANYL AS ADJUVANTS TO BUPIVACAINE [0.5% HEAVY] FOR LOWER ABDOMINAL SURGERIES UNDER SUBARACHNOID BLOCK

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    Syed Ali

    2016-04-01

    Full Text Available BACKGROUND Spinal anaesthesia is the most commonly used technique for infraumbilical surgeries and it has some disadvantages, such as a short duration of motor blockade and post-operative analgesia. This study was designed to evaluate the effects of additive agents of fentanyl and magnesium sulphate along with Bupivacaine for prolongation of analgesia and motor blockade during spinal anaesthesia for infraumbilical surgeries. METHODS This study was conducted in 60 patients of both sexes of ASA physical status I and II scheduled for infraumbilical surgeries. Patients were randomly divided into two groups and were given the drugs intrathecally as per group distribution; Group BFbupivacaine 15 mg (0.5% heavy with fentanyl 25 μg, Group BM-bupivacaine 15 mg (0.5% heavy with magnesium 100 mg intrathecal. RESULTS There was a similar increase in duration of analgesia in Group BF (378.21 min. as compared to Group BM (331.12 min.. In Group (BF, all haemodynamic parameters are decreased by more than 19%. There was an increase in duration of motor blockade more in Group (BF compared to Group (BM. CONCLUSION In conclusion, (100 mg magnesium sulphate or (25 μg fentanyl as adjuvants with bupivacaine to spinal anaesthesia. Both drugs are significantly prolonging the duration of both sensory block and analgesia, but magnesium sulphate provides better haemodynamic stability than fentanyl.

  19. Computed tomography-guided bupivacaine and corticosteroid injection for the treatment of symptomatic calcification in the great toe tendon

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    Karatoprak O

    2014-04-01

    Full Text Available Omer Karatoprak,1 Sinan Karaca,2 Mehmet Nuri Erdem,3 Ozgur Karaman,2 Azmi Hamzaoglu41Department of Orthopedic Surgery, Kadikoy Florence Nightingale Hospital, Istanbul, Turkey; 2Department of Orthopedic Surgery, Fatih Sultan Mehmet Training and Research Hospital Atasehir, Istanbul, Turkey; 3Department of Orthopedics and Traumatology, Kolan International Hospital Sisli, Istanbul, Turkey; 4Department of Orthopedic Surgery, Istanbul Florence Nightingale Hospital, Istanbul TurkeyBackground: Calcification in the great toe tendon is a rare disorder that is characterized by the deposition of calcium on degenerative collagen fibrils.Case presentations: In this report, we present two cases of calcific tendonitis: one in the adductor hallucis and the other in the flexor hallucis longus tendon. We preferred computed tomography-guided steroid injection in our cases because of pain unresponsive to conservative treatment. Patients were free of symptoms at the follow-up visit, 4 weeks after injection.Conclusion: Calcification of the hallux tendons is a rare disorder. Treatment of tendonitis consists of nonsteroidal anti-inflammatory drugs. Local anesthetic and steroid injection may be considered in cases unresponsive to conservative treatment. Because of the anatomic location of tendons, injection could be difficult. Computed tomography guidance may improve the success rate of injections.Keywords: bupivacaine, calcification, great toe tendons, corticosteroid injection

  20. Effects of labor analgesia on maternal and neonatal outcome by epidural low concentration of bupivacaine combined with anisodamine

    Institute of Scientific and Technical Information of China (English)

    Yang Xiaoli; Zhou Chunqin; Li Xiaogang; Shen Xiaodong; Zou Yuliang

    2008-01-01

    Objective To observe the effects of labor analgesia on maternal and neonatal outcome by epidural application of 0.125% bupivacaine combined with anisodamine on the labor stage, and modes of delivery and neonatal Apgar's score. Methods A total of 220 primiparaes with full-term pregnancy, monocyesis and fetal head presentation without any obstetrical or systematic complications were chosen and divided into analgesic group and control group (110 in each group). The mixture of bupivaeaine and anisodamine was injected into the epidural space of the parturients in the analgesic group while those patients in the control group did not receive any analgesics. Results The analgesic effect was satisfactory (91.8 %), and no side effects occurred in the second stage of labor. The instrument delivery rate was lower in the analgesic group, and there was no significant difference between the two groups in neonatal Apgar's score. Conclusion The method is feasible in clinic for labor pain relief without increasing the rate of dystocla and complications of delivery.

  1. Evaluation of analgesic effect of two different doses of fentanyl in combination with bupivacaine for surgical site infiltration in cases of modified radical mastoidectomy: A double blind randomized study

    Science.gov (United States)

    Bhandari, Geeta; Shahi, Kedar Singh; Parmar, Nitish Kumar; Asad, Mohammad; Joshi, Hemchandra Kumar; Bhakuni, Rajni

    2013-01-01

    Background: Limited evidence supports the efficacy of peripheral route fentanyl and local anesthetic combination for postoperative analgesia. Our study was therefore designed to demonstrate the analgesic efficacy of two different doses of fentanyl in combination with bupivacaine for surgical site infiltration in patients undergoing modified radical mastoidectomy (MRM). Materials and Methods: 60 patients undergoing MRM under general anesthesia were randomly allocated into two groups, first group receiving 0.5% bupivacaine at a dose of 2 mg/kg body weight with 50 μg fentanyl and second group receiving bupivacaine 0.5% at a dose of 2 mg/kg body weight with 100 μg fentanyl as infiltration of operative field in and around the incision site, after the incision and just before completion of surgery. In postoperative period pain, nausea-vomiting and sedation was recorded at 0 hr, 2, 4, 6, 12 and 24 hrs. Results: Both the combinations of bupivacaine and fentanyl (Group I and Group II) were effective for postoperative analgesia. In both the groups the Visual Analogue Scale (VAS) score was less than 3 at each time interval. None of the patients required rescue analgesia. The comparison of VAS scores at different intervals showed that group II had lower VAS scores at all time points. Conclusions: Fentanyl and bupivacaine combinations in doses of 50 and 100 μg along with 0.5% bupivacaine at a fixed dose of 2 mg/kg body weight are effective in the management of postoperative pain. Patients who received 100 μg fentanyl (Group II) had lower VAS scores as compared to the patients who received 50 μg fentanyl (Group I) with similar side effects. PMID:25885841

  2. Differential mortality of male spectacled eiders (Somateria fischeri) and king eiders (Somateria spectabilis) subsequent to anesthesia with propofol, bupivacaine, and ketoprofen

    Science.gov (United States)

    Mulcahy, Daniel M.; Tuomi, Pamela A.; Larsen, R.S.

    2003-01-01

    Twenty free-ranging spectacled eiders (Somateria fischeri; 10 male, 10 female), 11 free-ranging king eiders (Somateria spectabilis; 6 male, 5 female), and 20 female common eiders (Somateria mollissima) were anesthetized with propofol, bupivacaine, and ketoprofen for the surgical implantation of satellite transmitters. Propofol was given to induce and maintain anesthesia (mean total dose, 26.2-45.6 mg/kg IV), bupivacaine (2-10 mg/kg SC) was infused into the incision site for local analgesia, and ketoprofen (2-5 mg/kg IM) was given at the time of surgery for postoperative analgesia. Four of 10 male spectacled eiders and 5 of 6 male king eiders died within 1-4 days after surgery. None of the female spectacled or common eiders and only 1 of the 5 female king eiders died during the same postoperative period. Histopathologic findings in 2 dead male king eiders were severe renal tubular necrosis, acute rhabdomyolysis, and mild visceral gout. Necropsy findings in 3 other dead male king eiders were consistent with visceral gout. We suspect that the perioperative use of ketoprofen caused lethal renal damage in the male eiders. Male eiders may be more susceptible to renal damage than females because of behavioral differences during their short stay on land in mating season. The combination of propofol, bupivacaine, and ketoprofen should not be used to anesthetize free-ranging male eiders, and nonsteroidal anti-inflammatory drugs should not be used perioperatively in any bird that may be predisposed to renal insufficiency.

  3. To evaluate the efficacy of intrathecal magnesium sulphate for hysterectomy under subarachnoid block with bupivacaine and fentanyl: A prospective randomized double blind clinical trial

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    Mridu Paban Nath

    2012-01-01

    Full Text Available Background: Intrathecal magnesium has been found to prolong the duration of analgesia in various surgical procedures like lower limb surgeries and as adjuncts to general anesthesia for pain management. The present study was designed to examine whether addition of intrathecal magnesium sulfate would enhance the analgesic efficacy of intrathecal bupivacaine and fentanyl in patients undergoing total abdominal hysterectomy. Methods: After taking informed consent, 60 patients were randomised into two groups with 30 patients. Group "S" received 2.5 mL (12.5 mg of hyperbaric bupivacaine + 0.5 mL (25 mcg of fentanyl + 0.5 mL of normal saline and Group "M" received 2.5 mL (12.5 mg of hyperbaric bupivacaine + 0.5 mL (25 mcg of fentanyl + 0.5 mL (100 mg of magnesium sulfate. Onset of sensory, motor block and duration of analgesia was noted. Results: Demographic profile and duration of surgery were comparable (P>0.5. Time of onset of sensory and motor blockade was delayed in Group M compared with Group S, and this was statistically significant. A statistically significant longer duration of analgesia was observed in Group M compared with the control Group S. However, the recovery of motor blockade was found to be statistically insignificant in both the groups. The hemodynamic parameters were comparable in the perioperative period (P>0.05. The incidence of side-effects in both the groups were also comparable (P>0.05. Conclusion: The addition of 100 mg intrathecal magnesium led to prolonged duration of analgesia significantly without increasing the incidence of side-effects. Also, there was a significant delay in the onset of both sensory and motor blockade.

  4. High-performance liquid chromatographic separation of rolipram, bupivacaine and omeprazole using a tartardiamide-based stationary phase influence of flow rate and temperature on the enantioseparation.

    Science.gov (United States)

    da Silva Junior, Ivanildo José; Sartor, João Paulo; Rosa, Paulo César Pires; de Veredas, Vinícius; Barreto Júnior, Amaro Gomes; Santana, Cesar Costapinto

    2007-08-24

    Chromatographic separation of the chiral drugs rolipram, bupivacaine and omeprazole on a tartardiamide-based stationary phase commercially named Kromasil CHI-TBB is shown in this work. The effect of temperature on the chromatographic separation of the chiral drugs using the Kromasil CHI-TBB stationary phase was determined quantitatively so as to contribute toward the design for the racemic mixtures of the named compound by using chiral columns. A decrease in the retention and selectivity factors was observed, when the column temperature increased. Van't Hoff plots provided the thermodynamic data. The variation of the thermodynamic parameters enthalpy and entropy are clearly negative meaning that the separation is enthalpy controlled.

  5. A study of addition of Inj.Butorphanol to hyperbaric Inj.Bupivacaine given intrathecally to patients undergoing lower segment caesarean section: A randomized, controlled trial

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    Vangipuram Raghavachari Ranga Chari

    2013-01-01

    Full Text Available Background: Intrathecal 0.5% hyperbaric injection bupivacaine has become increasingly popular as it provides good sensory and motor block for longer duration without any significant neurological side effects. Spinal opiates have been of much interest in recent times as they potentiate the effect of local anesthetic agent and provide longer lasting post-operative analgesia. We compared injection butorphanol and normal saline as an adjuvant to local anesthetic agent in subarachnoid block in lateral position with respect to onset, duration of sensory and motor block and duration of analgesia. Aim: To evaluate the effect of addition of 25 mg of injection butorphanol to hyperbaric injection bupivacaine 0.5% on onset, quality, duration of sensory and motor block, hemodynamic changes, side effects, and post-operative analgesic effect when administrated intrathecally in patients undergoing elective lower segment cesarean section (LSCS. Methodology: Sixty ASA (American Society of Anaesthesiologist grade-I and II patients scheduled for elective LSCS aged 18-40 years were divided into two equal and comparable groups. The control group represented patients receiving injection bupivacaine 0.5% (10 mg, 2 ml + 0.5 ml normal saline (total volume 2.5 ml intrathecally. The study group were the patients receiving injection bupivacaine 0.5% (10 mg, 2 ml + injection butorphanol 25 mg in 0.5 ml of normal saline (1 mg/ml preservative-free injection butorphanol diluted up to 20 ml by normal saline and 0.5 ml of this solution was taken making total volume 2.5 ml by intrathecal route. The principle outcome measures were systolic and diastolic blood pressure changes and the anesthetic and analgesic effects. These were summarized and compared between the two groups. Parametric statistics were used to test the null hypothesis of no difference in the two groups. Results: In the early phase of surgery there was more decrease in systolic and diastolic blood pressures in the

  6. Comparing the painlessness effects of spinal (sufentanil and epidural(bupivacaine plus lidocaine analgesic methods in labour and delivery

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    A. Shafiee

    2006-01-01

    Full Text Available Background and purpose: This study was designed in order to compare the effects of spinal and epidural analgesia on labour and also several maternal and fetal factors in vaginal delivery.Materials and Methods: The study was a randomized clinical trail and participatnts were 120 gravid 1 and gravid 2 women in the active phase of delivery, admitted to the labour room of Fatemieh Hospital in Hamedan in 1381-1382.Sixty patients were randomly divided into two groups of 30, analgesia was induced by single spinal sufentanil injection in one group and, bupivacaine plus lidocaine injection in the other group.Maternal vital signs and pain score were recorded (VAS at 1, 5, 15 and 30 minutes after administration of analgesia and every 30 minutes thereafter. Fetal heart rate every 15 minutes, vaginal examination every hour, urinary output every 4 hours after delivery and the incidence of headache and back pain, one week after delivery were the variables under study.Results: Both groups were matched regarding demographic, gravida and Parity factors. There was no significant difference between groups regarding pain score, (based on VAS,duration of the first and second delivery phase, the incidence of fetal distress, meconium excretion, apgar scores at 1 and 5 minutes after delivery, abnormal laboar, operative or assisted delivery. Average analgesic duration was longer in spinal analgesia than single epidural injection analgesia.Conclusion: Considering the difficulty of the technique, the need for anaestheticianHs supervision and injection repeatition in epidural analgesia, it seems that spinal analgesia is a suitable replacement which is more practical, less expensive, easy to perform and induces a desirable analgesia.

  7. The Effects of Single-Dose Rectal Midazolam Application on Postoperative Recovery, Sedation, and Analgesia in Children Given Caudal Anesthesia Plus Bupivacaine

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    Sedat Saylan

    2014-01-01

    Full Text Available Background. This study aimed to compare the effects of rectal midazolam addition after applying bupivacaine and caudal anesthesia on postoperative analgesia time, the need for additional analgesics, postoperative recovery, and sedation and to find out its adverse effects in children having lower abdominal surgery. Methods. 40 children between 2 and 10 years of ASA I-II were randomized, and they received caudal anesthesia under general anesthesia. Patients underwent the application of caudal block in addition to saline and 1 mL/kg bupivacaine 0.25%. In the postoperative period, Group C (n = 20 was given 5 mL saline, and Group M (n = 20 was given 0.30 mg/kg rectal midazolam diluted with 5 mL saline. Sedation scale and postoperative pain scale (CHIPPS of the patients were evaluated. The patients were observed for their analgesic need, first analgesic time, and adverse effects for 24 hours. Results. Demographic and hemodynamic data of the two groups did not differ. Postoperative sedation scores in both groups were significantly lower compared with the preoperative period. There was no significant difference between the groups in terms of sedation and sufficient analgesia. Conclusions. We conclude that caudal anesthesia provided sufficient analgesia in peroperative and postoperative periods, and rectal midazolam addition did not create any differences. This trial is registered with ClinicalTrials.gov NCT02127489.

  8. A RANDOMISED CLINICAL TRIAL FOR COMPARISON OF DIFFERENT VOLUMES OF 0.5% BUPIVACAINE (HYPERBARIC IN SUBARACHNOID BLOCK WITH RESPECT TO LEVEL AND DURATION OF SENSORY AND MOTOR BLOCKADE

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    Ghazia Hina

    2016-09-01

    Full Text Available AIMS AND OBJECTIVES The aim of the study is: 1. To observe the onset time of sensory and motor blockade. 2. To compare levels and duration of sensory and motor blockade. 3. And to observe associated complications in subarachnoid block using 2.5 mL, 3 mL and 3.5 mL of 0.5% bupivacaine (hyperbaric. MATERIALS AND METHODS The prospective randomised clinical study was carried out on 90 patients belonging to ASA grade I and II, posted for elective urogenital, lower abdominal and lower extremities surgeries, under spinal anaesthesia. 90 patients were randomly divided into three groups using envelope method with 30 patients in each group. 1. Group A: Patients received 2.5 mL of hyperbaric solution of 0.5% bupivacaine. 2. Group B: Patients received 3.0 mL of hyperbaric solution of 0.5% bupivacaine. 3. Group C: Patients received 3.5 mL of hyperbaric solution of 0.5% bupivacaine. Immediately after the injection, the patient was positioned in the supine horizontal position and the following parameters were evaluated. Time of onset of sensory blockade, Maximum level of sensory blockade, Duration of sensory blockade, Time of onset of motor blockade, Maximum level of Motor blockade, Duration of motor blockade. RESULTS The onset of sensory and motor blockade was faster with the increasing volumes of the drug. Higher levels of sensory blockade were achieved with the increasing drug volumes. The duration of sensory and motor blockade increased with the increasing volumes of drug. The duration of motor block was directly proportional to the volume of the drug injected. CONCLUSION We conclude from our study that the doses of 0.5% hyperbaric bupivacaine can be titrated according to the level and duration of sensory and motor blockade desired using minimum amount of drug necessary. The cardiovascular stability was better at lower volumes of the drug.

  9. The pharmacokinetics and safety of an intraoperative bupivacaine-collagen implant (XaraColl® for postoperative analgesia in women following total abdominal hysterectomy

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    Cusack SL

    2013-03-01

    Full Text Available Susan L Cusack,1 Philip Reginald,2 Lisa Hemsen,3 Emmanuel Umerah21Cusack Pharmaceutical Consulting, Burlington, NJ, USA; 2Departments of Gynaecology and Anaesthetics, Wexham Park Hospital, Slough, SL2 4HL, UK; 3Innocoll Technologies, Athlone, IrelandBackground: XaraColl®, a collagen-based intraoperative implant that delivers bupivacaine to the site of surgical trauma, is under development for postoperative analgesia. We examined the pharmacokinetics, safety and efficacy of XaraColl following implantation in women undergoing total abdominal hysterectomy.Methods: Three XaraColl implants, each containing 50 mg bupivacaine hydrochloride, were implanted in 12 women undergoing total abdominal hysterectomy for a benign condition. Serum samples were obtained through 96 hours for pharmacokinetic analysis. Patients received acetaminophen 1000 mg every 6 hours, diclofenac 50 mg every 8 hours, and were given access to intravenous morphine for breakthrough pain via patient-controlled analgesia during the first 24 hours. Pain intensity was assessed at regular intervals using a 100 mm visual analog scale. Safety was assessed through 30 days.Results: The pharmacokinetic profile displayed a double peak in bupivacaine concentration with the second peak occurring up to 24 hours after the first and at a generally higher concentration. The time to maximum concentration (tmax varied from 0.5 to 24 hours (median 12 hours according to which peak predominated. The mean maximum concentration (Cmax was 0.22 µg/mL and the maximum individual Cmax was 0.44 µg/mL, which are well below the established systemic toxicity threshold. Morphine use was generally low (mean 16.8 mg; median 6.5 mg and compared favorably with institutional experience. At 6 hours post-surgery, 11 patients recorded pain scores ≤ 20 mm, 6 recorded ≤ 10 mm, and 2 reported no pain. Scores continued to decline throughout the study. The product was considered safe and well tolerated.Conclusion: Xara

  10. A feasibility study to investigate the use of a bupivacaine-collagen implant (XaraColl for postoperative analgesia following laparoscopic surgery

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    Hemsen L

    2013-02-01

    Full Text Available Lisa Hemsen,1 Susan L Cusack,2 Harold S Minkowitz,3 Michael E Kuss41Innocoll Technologies, Athlone, Ireland; 2Cusack Pharmaceutical Consulting, Burlington, NJ, USA; 3Memorial Hermann Memorial City Medical Center, Houston, TX, USA; 4Premier Research Group, Austin, TX, USABackground: XaraColl, a collagen-based implant that delivers bupivacaine to sites of surgical trauma, has been shown to reduce postoperative pain and use of opioid analgesia in patients undergoing open surgery. We therefore designed and conducted a preliminary feasibility study to investigate its application and ease of use for laparoscopic surgery.Methods: We implanted four XaraColl implants each containing 50 mg of bupivacaine hydrochloride (200 mg total dose in ten men undergoing laparoscopic inguinal or umbilical hernioplasty. Postoperative pain intensity and use of opioid analgesia were recorded through 72 hours for comparison with previously reported data from efficacy studies performed in men undergoing open inguinal hernioplasty. Safety was assessed for 30 days.Results: XaraColl was easily and safely implanted via a laparoscope. The summed pain intensity and total use of opioid analgesia through the first 24 hours were similar to the values observed in previously reported studies for XaraColl-treated patients after open surgery, but were lower through 48 and 72 hours.Conclusion: XaraColl is suitable for use in laparoscopic surgery and may provide postoperative analgesia in laparoscopic patients who often experience considerable postoperative pain in the first 24–48 hours following hospital discharge. Randomized controlled trials specifically to evaluate its efficacy in this application are warranted.Keywords: laparoscopic, hernioplasty, hernia repair

  11. Comparative study of two doses of intrathecal dexmedetomidine as adjuvant with low dose hyperbaric bupivacaine in ambulatory perianal surgeries: A prospective randomised controlled study

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    K Sudheesh

    2015-01-01

    Full Text Available Background and Aims: Dexmedetomidine (DMT, as intrathecal adjuvant has been shown to successfully prolong duration of analgesia but delay the motor recovery. Hence, this study was designed to find out the dose of DMT which can provide satisfactory analgesia without prolonging motor block. Methods: A total of 50 patients scheduled for elective perianal surgeries were randomly allocated to Groups C or D (n = 25. Group D received hyperbaric bupivacaine 0.5% 4 mg + DMT 5 μg and Group C received hyperbaric bupivacaine 0.5% 4 mg + DMT 3 μg intrathecally. Onset and duration of sensory and motor blockade, duration of analgesia, time for ambulation and first urination were recorded. Adverse effects if any were noted. Results: Demographic characters, duration of surgery were comparable. The onset of sensory block to S1 was 9.61 ± 5.53 min in Group C compared to 7.69 ± 4.80 min in Group D (P = 0.35. Duration of sensory (145.28 ± 83.17 min – C, 167.85 ± 93.75 min – D, P = 0.5 and motor block (170.53 ± 73.44 min – C, 196.14 ± 84.28 min, P = 0.39 were comparable. Duration of analgesia (337.86 ± 105.11 min – C, 340.78 ± 101.81 min – D, P = 0.9 and time for ambulation (252.46 ± 93.72 min – C, 253.64 ± 88.04 min – D, P = 0.97 were also comparable. One patient in each group had urinary retention requiring catheterization. No other side effects were observed. Conclusion: Intrathecal DMT 3 μg dose does not produce faster ambulation compared to intrathecal DMT 5 μg though it produces comparable duration of analgesia for perianal surgeries.

  12. Is the pharmacokinetics of bupivacaine equivalent after lumbar epidural administration through a needle or a catheter in male and female adults?

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    Faura, Ana; Modamio, Pilar; Blanco, Domingo; Segarra, Ignacio; Lastra, Cecilia F; Izquierdo, Elisenda; Casasín, Tomás; Mariño, Eduardo L

    2015-03-01

    We assessed possible pharmacokinetic modifications due to different epidural injection techniques using either a needle or a catheter. Adult patients (n=23) undergoing lower abdominal or lower extremity surgery were randomly assigned a single bupivacaine epidural injection anesthesia (0.5%, 15 mL, 0.3 mL/s) through needle or catheter device. Plasma bupivacaine concentration was quantified using a validated HPLC method and non-compartmental pharmacokinetic parameters estimated. CMAX and TMAX were similar in both groups: 952 ± 346 ng/mL, 0.65 ± 0.5 1h in the needle group; 810 ± 307 ng/mL, 0.43 ± 0.29 h in the catheter group respectively. Plasma AUC₀→∞ was also similar in both groups: 3868 ± 1687 ngh/mL for needle versus 4096 ± 1748 ngh/mL using catheter. The catheter group showed slower disposition than the needle group: t₁/₂=3.9 ± 2.3 h, MRT=6.0 ± 3.1 h versus 2.7 ± 1.03 h and 4.5 ± 1.2 h with needle administration respectively though it did not reach statistical significance, Cl/F and V/F were also similar. Lastly, female patients showed significant longer t1/2 after administration through catheter (5.7 ± 2.0 h) than needle (2.7 ± 0.6 h) group (P=0.0279). The device type does not affect the pharmacokinetics which is similar in both groups although sex-based differences might exist.

  13. Bupivacaína-buprenorfina vs. bupivacaína por vía caudal para analgesia postoperatoria en el paciente pediátrico en cirugía ortopédica Bupivacaine-buprenorphine vs. caudal bupivacaine as postoperative analgesia for pediatric patients undergoing orthopedic surgery

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    M. E. Flores Arana

    2011-04-01

    Full Text Available Introducción: el dolor postoperatorio en el niño constituye una entidad especial ya que en el influyen varios factores, por tanto es una experiencia no esperada por el niño y más difícil de tratar. Objetivos: evaluar y comparar la duración y calidad de la analgesia postoperatoria caudal así como la estabilidad hemodinámica y los efectos adversos entre bupivacaína-buprenorfina contra bupivacaína. Material y método: ensayo clínico controlado, prospectivo, longitudinal y comparativo; se estudian 40 pacientes de 1 a 7 años, para cirugía ortopédica bajo bloqueo caudal en el HTO No 21 de Monterrey, Nuevo León, de mayo 2009 a enero 2010. Se asignan en forma aleatoria a dos grupos: grupo A bupivacaína 0,25% 1,4 ml/kg y grupo B se le administrará bupivacaína al 0,25% 1,4 ml/kg adicionada de 1 μg/kg de buprenorfina. La intensidad del dolor postoperatorio se medirá a través del EVA, NIPS Y CRIES a las 2, 4, 6, 12 y 24 horas posteriores. Análisis estadístico: T de Student, U de Mann-Whitney; y prueba de Chi cuadrado. Resultados: el tiempo de administración del primer analgésico posterior a cirugía fue más corto en el grupo A (5,33 vs. 8,46 horas, con una diferencia a favor del grupo B (p Background: postoperative pain in children is a special entity and that the influence various factors, therefore it is an unexpected experience for the child and more difficult to treat. Objective: to evaluate and compare the length and quality of post-operative caudal analgesia and hemodynamic stability and adverse effects between bupivacaine-buprenorphine against bupivacaine. Material and methods: a controlled clinical trial, prospective, longitudinal, comparative study included 40 patients 1-7 years for orthopedic surgery under caudal block in the HTO No 21, of Monterrey, Nuevo Leon, from May 2009 to January 2010. Are assigned at random to two groups: group A 0.25% bupivacaine 1.4 ml/kg, and group B bupivacaine mL/kg 0.25% 1.4 mg/kg of

  14. A RANDOMIZED COMPARISON OF 0.125% LEVOBUPIVACAINE, 0.125% ROPIVACAINE AND 0.125%BUPIVACAINE COMBINED WITH 2μG/ML FENTANYL FOR EPIDURAL LABOR ANALGESIA

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    Gopal Reddy

    2015-06-01

    Full Text Available The labor pain is one of the most severe pains that a woman could ever be suffered. Today, many medical and psychological methods are used in an effort to reduce labor pain. Epidural analgesia is the best current method used for the purposes of obstetric a nalgesia. OBJECTIVE: To compare analgesic efficacy and intensity of sensory block with continuous infusions of bupivacaine, levobupivacaine and ropivacaine for labor epidural analgesia. Design: Prospective, randomized, double - blind study. PATIENTS: 95 ASA physical status I and II, term, primigravida. Interventions: All patients received epidural labor analgesia. Epidural medication consisted of an initial bolus of 10 mL 0.125% local anesthetic combined with2μg/ml Fentanyl followed by an infusion at 10 ml/h of local anesthetic with2μg/ml Fentanyl . Patients were allocated to three groups, as follows: each group received bolus and infusion of 0.125%local anaesthetic group1 bupivacaine, group 2 levobupivacaine and group 3 ropivacaine respectively. MEASUREMENTS: Maternal vital signs, pain visual analog scale (VAS score, sensory levels, and motor block (Bromage score were recorded at intervals. Duration of first and second stage and mode of delivery were also recorded. CONCLUSION: All three regimens were effectiv e during first stage of labor although pain scores were higher in those receiving levobupivacaine and ropivacaine. Motor block was greater with bupivacaine than with levobupivacaine and ropivacaine.

  15. The incidence of transient neurologic syndrome after spinal anesthesia with lidocaine or bupivacaine: The effects of needle type and surgical position: brief report

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    Etezadi F

    2011-10-01

    Full Text Available "nBurning Transient Neurologic Syndrome (TNS which was first described by Schneider et al in 1993, is defined as a transient pain and dysesthesia in waist, buttocks and the lower limbs after spinal anesthesia.1,2 The incidence of TNS after spinal anesthesia with lidocaine is reported to be as high as 10-40%.3,4 This prospective study was designed to determine the incidence of TNS with two different types of drugs, lidocaine and bupivacaine, in lithotomy or supine positions as the primary outcomes and to determine the association between two different types of needles and surgical positions with the occurrence of TNS as the secondary outcome."nThe present study was conducted on 250 patients (ASA I-II, aged 18-60 years old, who were candidates for surgery in supine or lithotomy positions. According to the needle type (Sprotte or Quincke and the local anesthetic (lidocaine or bupivacaine all patients were randomly divided into four groups. After establishing standard monitoring, spinal anesthesia was performed in all sitting patients by attending anesthesiologists at L2-L3 or L3-L4 levels. The patients were placed in supine or lithotomy position, in regards to the surgical procedure. During the first three postoperative days, patients were observed for post spinal anesthesia complications, especially TNS. Any sensation of pain, dysesthesia, paresthesia or hyperalgesia in the low back area, buttocks, the anterior or posterior thigh, knees, either foot or both feet were recorded. Moreover, duration of pain, its radiation and its relation to sleep and the patients' position were all carefully considered. Ultimately, the patients' response to opioid (pethidine for analgesia was determined."nThe incidence of TNS was higher when spinal anesthesia was induced with lidocaine (68% vs. 22%, P=0.003. TNS developed in 85% of the patients in lidocaine group and 58% in bupivacaine group after surgery in lithotomy position (P=0.002. In 77 patients pain

  16. COMBINED SPINAL EPIDURAL ANALGESIA IN LABOUR: COMPARISON OF BUPIVACAINE 1.25 MG WITH FENTANYL AND ROPIVACAINE 2.5 MG WITH FENTANYL INTRATHECAL

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    Prakash T. S. N

    2016-10-01

    with ASA I and ASA II in established labour with cervical dilatation less than 5 cm was selected and randomly allocated into two groups using closed envelope method. Informed written consent was taken from all participants. They were divided into 2 groups of 20 each. Group I received intrathecal Inj. Bupivacaine 1.25 mg and Inj. Fentanyl 20 µg. Group II received intrathecal Inj. Ropivacaine 2.5 mg and Inj. Fentanyl 20 µg for combined spinal epidural. IV line was secured with 18G cannula. Patient was preloaded with 500 mL of Hartmann’s solution. Basal vital parameter like pulse rate, blood pressure, respiration, O2 saturation were recorded. The patient was positioned in a sitting position with the help of an assistant. Under aseptic conditions, the back was prepared with 5% povidone-iodine solution, spirit and area was draped. L3-L4 interspace was identified. Skin was infiltrated with 2 mL of 1% Xylocaine. After infiltration of local anaesthetic by using needle through needle technique 18-gauge Tuohy needle, epidural space was identified with loss of resistance to air technique. Then, a 15 mm (27 G long ‘Whitacre’ spinal needle was introduced through the epidural needle and the correct position of the tip in the intrathecal space was confirmed by observation of free flow of CSF. Patients were allocated randomly to receive intrathecal injection of bupivacaine 1.25 mg (0.5% bupivacaine 0.25 mL with fentanyl 20 µg (Group I n=30 or ropivacaine 2.5 mg/0.2% ropivacaine 1.25 mL with fentanyl 20 µg (Group II, n=30 both made up to total volume of 2 mL with saline. Injection of intrathecal drug was completed in 10 secs., then 20G epidural catheter was threaded through the epidural needle into the epidural space in cephalad direction. The epidural needle was slowly pulled out without disturbing the catheter. About 3 to 5 cm of catheter was left in epidural space. The catheter was well secured with plaster. Patients vitals was recorded every 5, 10, 15, 30, 45, 60, 75, 90

  17. Clinical evaluation of XaraColl®, a bupivacaine-collagen implant, for postoperative analgesia in two multicenter, randomized, double-blind, placebo-controlled pilot studies

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    Cusack SL

    2012-06-01

    Full Text Available Susan L Cusack,1 Mark Jaros,2 Michael Kuss,3 Harold S Minkowitz,4 Peter Winkle,5 Lisa Hemsen61Cusack Pharmaceutical Consulting, Burlington, NJ, 2Summit Analytical, Denver, CO, USA; 3Premier Research Group, Austin, TX, USA; 4Memorial Hermann Memorial City Medical Center, Houston, TX, USA; 5Advanced Clinical Research Institute, Anaheim, CA, USA; 6Innocoll Technologies, Athlone, IrelandBackground: XaraColl®, a collagen-based implant that delivers bupivacaine to the site of surgical trauma, is under development for postoperative analgesia. Because of differing patient attitudes to postoperative pain control and the inability to assess baseline pain, standard clinical methods for evaluating analgesic efficacy are compromised and justify application of novel integrated approaches.Methods: We conducted two independent, multicenter, double-blind, placebo-controlled studies in men undergoing unilateral inguinal hernioplasty by open laparotomy to evaluate the safety and efficacy of XaraColl at different doses (100 mg and 200 mg of bupivacaine hydrochloride; study 1 and 2, respectively. Enrolled patients (50 in study 1 and 53 in study 2 were randomized to receive active or placebo implants in a 1:1 ratio. Postoperative pain intensity and use of supplementary opioid medication were recorded through 72 hours. Safety was assessed through 30 days. The principal efficacy variables were the summed pain intensity (SPI, total use of opioid analgesia (TOpA, and an integrated endpoint (I-SPI-TOpA. Each variable was analyzed at 24, 48, and 72 hours after implantation. A pooled analysis of both studies was also performed retrospectively.Results: Through 24 and 48 hours, XaraColl-treated patients experienced significantly less pain in study 1 (P < 0.001 and P = 0.012, respectively whereas they took significantly less opioid analgesia in study 2 (P = 0.004 and P = 0.042, respectively. Over the same time intervals in the pooled analysis, treated patients experienced

  18. Can Spinal Bupivacaine Analgesia Treatment Make a Difference on Urinary Bladder Healing According to the Intramuscular Pethidine Analgesia Treatment in Rats?

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    Yeswim Senayli

    2007-01-01

    Full Text Available We designed a study to compare the healing levels found with intramuscular pethidine with those found with intrathecal local anesthetic treatments. The urinary bladder is suggested to be the most useful tissue in the evaluation of the effects of the drugs. Nineteen male, Sprague-Dawley rats weighing 200–300 g were used in this study. A sagittal section was made in the urinary bladder after suitable anesthesia and laparotomy. Bladders were closed with 5-0 plain catguts 5 min later. There were nine rats in the control group and pethidine (0.5 g/kg was administered intramuscularly in the gluteal muscle region to treat pain after the operations. There were 11 rats in the study group and each received a spinal injection of 0.25% bupivacaine after the operation. Rats were followed for 7 days to define pain. Specimens, particularly the incised region of the bladder, were evaluated for inflammation and fibrosis. Grading scales were used for this purpose. Statistical analyses of the data were performed using the Chi-square test. Statistical analyses were nonsignificant for inflammation (p ≤ 0.151 and nonsignificant for fibrosis (p ≤ 0.105. The treatments may have the same effects on organ healing mechanisms. Statistical difference is not shown in this study, but use of other combinations of pain treatments to evaluate the healing may demonstrate which of these possibilities is true.

  19. A CLINICAL STUDY TO EVALUATE THE EFFECTS OF INTRATHECAL DEXMEDETOMIDINE 10 MCG ON LOW DOSE HYPERBARIC 0.5% BUPIVACAINE (5 MG FOR SADDLE BLOCK ANAESTHESIA IN ADULT PATIENTS POSTED FOR ELECTIVE PERIANAL SURGERIES

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    Thuraganur Kapanigowda

    2016-06-01

    Full Text Available AIMS AND OBJECTIVES Saddle block anaesthesia is most commonly used technique for perineal surgeries, i.e. haemorrhoids, fissure-in-ano, etc., as it is most economical and easy to administer. Spinal anaesthesia by bupivacaine may be too short for providing postoperative analgesia. Hence, various adjuvants have been used with Local anaesthetics to provide good intraoperative anaesthesia and to prolong postoperative analgesia. The aim of our study was to evaluate the effects of intrathecal administration of dexmedetomidine 10 µg on low dose bupivacaine 0.5% (5 mg, to know the onset and duration of sensory and motor blockade, the haemodynamic effects, duration of analgesia and the occurrence of side effects. METHODOLOGY This prospective randomized double blind study included 60 patients. Patients were randomly allocated into two groups of 30 patients each. Group D received 5 mg of 0.5% hyperbaric with dexmedetomidine 10 µg (0.5 mL and Group N received 5 mg of 0.5% hyperbaric bupivacaine with 0.5 mL of normal saline. The onset of sensory and motor block, haemodynamic effects, duration of analgesia and occurrence of side effects were noted. RESULTS The mean time taken for the onset of sensory block was 6.36±1.2 min and 8.23±1.7 significantly rapid with D Group compared to group N. The total duration of analgesia (360±15 min and 210±30 min in Group D and Group N respectively, P <0.000 and time to first rescue analgesic (370.85±15 min, 230.8±15 min in Group D and Group N respectively, P <0.001 were increased significantly by addition of dexmedetomidine without significant motor block and with minimal side effects. CONCLUSION Dexmedetomidine added intrathecally for saddle block had favourable effects on onset of sensory and total duration of analgesia and rescue analgesia.

  20. The effect of impregnated autogenous epidural adipose tissue with bupivacaine, methylprednisolone acetate or normal saline on postoperative radicular and low back pain in lumbar disc surgery under spinal anesthesia; A randomized clinical trial study FNx01

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    Saeid Abrishamkar

    2011-01-01

    Full Text Available Background: Low Back Pain (LBP and radicular leg pain (RLP after lumbar disc surgery are great challenges that prevent patients and neurosurgeons in making a surgical decision. By spinal anesthesia, LBP and RLP diminish up to 2 to 3 hours postoperatively. The aim of this study was to determine the effect of impregnated epidural adipose tissue (EAT with bupivacaine or methylprednisolone acetate on reduction of late postoperative pain after spinal anesthesia. Methods: This study was performed on lumbar disc herniation surgery under spinal anesthesia. Sixty six patients entered our study who were divided into three groups, EAT impregnated with bupivacaine (group 1, methylprednisolone acetate (group2 and normal saline (control group. The LBP and RLP were evaluated during the first 24 hours postoperatively and 14 days later by visual analogue scale (VAS. Results: Of 66 patients, 53% were female and 47% male. The average (SE LBP in the first 6 hours after surgery based on VAS were 1.59 ± 0.90 in group one, 2.36 ± 2.38 in group 2 and 3.09 ± 1.41 in control group but the VAS for RLP in this period were 1.95 ± 1.13, 1.31 ± 1.39 and 2.40 ± 1.09, respectively. The average LBP and RLP did not show any differences after 14 days postoperatively. Conclusions: According to our data bupivacaine was effective on LBP relief and steroid was effective on RLP relief during the first 12 hours after surgery.

  1. The effect of impregnated autogenous epidural adipose tissue with bupivacaine, methylprednisolone acetate or normal saline on postoperative radicular and low back pain in lumbar disc surgery under spinal anesthesia; A randomized clinical trial study*

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    Abrishamkar, Saeid; Rafiei, Ahmad Reza; Sabouri, Masih; Moradi, Siamak; Tabesh, Homayoun; Rahmani, Payman; Hekmatnia, Ali; Torkashvand, Mostafa; Eshraghi, Noorolah; Baghershahi, Ghasem

    2011-01-01

    BACKGROUND: Low Back Pain (LBP) and radicular leg pain (RLP) after lumbar disc surgery are great challenges that prevent patients and neurosurgeons in making a surgical decision. By spinal anesthesia, LBP and RLP diminish up to 2 to 3 hours postoperatively. The aim of this study was to determine the effect of impregnated epidural adipose tissue (EAT) with bupivacaine or methylprednisolone acetate on reduction of late postoperative pain after spinal anesthesia. METHODS: This study was performed on lumbar disc herniation surgery under spinal anesthesia. Sixty six patients entered our study who were divided into three groups, EAT impregnated with bupivacaine (group 1), methylprednisolone acetate (group2) and normal saline (control group). The LBP and RLP were evaluated during the first 24 hours postoperatively and 14 days later by visual analogue scale (VAS). RESULTS: Of 66 patients, 53% were female and 47% male. The average (SE) LBP in the first 6 hours after surgery based on VAS were 1.59 ± 0.90 in group one, 2.36 ± 2.38 in group 2 and 3.09 ± 1.41 in control group but the VAS for RLP in this period were 1.95 ± 1.13, 1.31 ± 1.39 and 2.40 ± 1.09, respectively. The average LBP and RLP did not show any differences after 14 days postoperatively. CONCLUSIONS: According to our data bupivacaine was effective on LBP relief and steroid was effective on RLP relief during the first 12 hours after surgery. PMID:22091284

  2. Effect of Two Different Doses ofDexmedetomidine as Adjuvant in BupivacaineInduced Subarachnoid Block for ElectiveAbdominal Hysterectomy Operations: A Prospective, Double-blind, RandomizedControlled Study

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    Anjan Das

    2015-07-01

    Full Text Available Objectives: Improvements in perioperative pain management for lower abdominal operations has been shown to reduce morbidity, induce early ambulation, and improve patients’ long-term outcomes. Dexmedetomidine, a selective alpha-2 agonist, has recently been used intrathecally as adjuvant to spinal anesthesia to prolong its efficacy. We compared two different doses of dexmedetomidine added to hyperbaric bupivacaine for spinal anesthesia. The primary endpoints were the onset and duration of sensory and motor block, and duration of analgesia.  Methods: A total of 100 patients, aged 35–60 years old, assigned to have elective abdominal hysterectomy under spinal anesthesia were divided into two equally sized groups (D5 and D10 in a randomized, double-blind fashion. The D5 group was intrathecally administered 3ml 0.5% hyperbaric bupivacaine with 5µg dexmedetomidine in 0.5ml of normal saline and the D10 group 3ml 0.5% bupivacaine with 10µg dexmedetomidine in 0.5ml of normal saline. For each patient, sensory and motor block onset times, block durations, time to first analgesic use, total analgesic need, postoperative visual analogue scale (VAS scores, hemodynamics, and side effects were recorded.  Results: Although both groups had a similar demographic profile, sensory and motor block in the D10 group (p0.050 without any appreciable side effects.  Conclusion: Spinal dexmedetomidine increases the sensory and motor block duration and time to first analgesic use, and decreases analgesic consumption in a dose-dependent manner.

  3. The efficacy of preventive parasternal single injection of bupivacaine on intubation time, blood gas parameters, narcotic requirement, and pain relief after open heart surgery: A randomized clinical trial study

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    Mahmoud Saeidi

    2011-01-01

    Full Text Available Background: Postsurgical pain usually results in some complications in the patients. This study has tried to investigate the effects of parasternal single injection of bupivacaine on postoperative pulmonary and pain consequences in patients after open heart surgery. Methods: : In a prospective double blind clinical study, 100 consenting patients undergoing elective open heart surgery were randomized into two groups. In case group, bupivacaine was injected at both sides of sternum, immediately before sternal closure. In the control group, no intervention was performed. Then, the patients were investigated regarding intubation period, length of ICU stay, arterial blood gas (ABG parameters, morphine requirement, and their severity of postoperative pain using a visual analogue scale (VAS device. Results: No differences were found between the two groups regarding to age, sex, pump time, operation time, and body mass index and preoperative cardiac ejection fraction. Mean intubation length in case group was much shorter than that in control group. Mean PaO 2 in case group was lower in different checking times in postoperative period. The patients in the case group needed less morphine compared to those in the control group during the 24-hour observation period in the ICU. Finally, mean VAS scores of pain in case group were significantly lower than those in control group at 6, 12, and 24 hours postoperatively. Conclusions: Patients′ pain relief by parasternal single injection of bupivacaine in early postoperative period can facilitate earlier ventilator weaning and tracheal extubation after open heart surgery as well as achieving lower pain scores and narcotic requirements.

  4. INTRATHECAL BUPRENORPHINE, CLONIDINE AND FENTANYL AS ADJUVANTS TO 0.5% HYPERBARIC BUPIVACAINE IN LOWER ABDOMINAL AND LOWER LIMB SURGERIES: A PROSPECTIVE, RANDOMIZED AND COMPARATIVE STUDY

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    Rashmi

    2015-06-01

    Full Text Available BACKGROUND: Among all the spinal adjuvants, clonidine, an alpha - 2 agonist has the ability to alleviate both the somatic and visceral pain and is more potent at spinal site, favoring its neuraxial administration. OBJECTIVE: This study was done to compare the onset and duration of sensory and motor blocks, duration of analgesia, haemodynamic and adverse effects of Clonidine, buprenorhine and fentanyl used intrathecally with hyperbaric 0.5% bupuvacaine. SETTINGS & DESIGN: This prospective, randomized and comparative study included 90 ASA class 1 & 2 patients undergoing lower abdominal and lower limb surgeries under spinal anesthesia after approval from hospital ethics committee with written i nformed consent of patients. MATERIALS AND METHOD S: Patients were randomly allocated into three groups (n=30 and received 50μg of clonidine, 25μg of fentanyl and 75μg of buprenorphine respectively in group BC,BF and BB as adjuvants to 15mg of 0.5% hyperba ric bupivacaine (3.0ml. The onset time and duration of sensory and motor block, duration of analgesia, haemodynamic changes and side effects were recorded. RESULTS: The onset time of motor block and durations of sensory, motor blockade and analgesia were prolonged in - group BC as compared to group BF and BB (P.05. Group BC had lower heart rate and mean blood pressure and higher sedation score. CONCLUSION: Intr athecal Clonidine in a dose of 50μg is an effective adjuvant to local anesthetics in neuraxial blocks despite mild sedation and haemodynamic variations.

  5. Quality of analgesia after lower third molar surgery: A randomised, double-blind study of levobupivacaine, bupivacaine and lidocaine with epinephrine

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    Brajković Denis

    2015-01-01

    Full Text Available Background/Aim. Surgical extraction of lower third molars is followed by mild or severe postoperative pain which peaks at maximal intensity in the first 12 hours and has a significant impact on a patient’s postoperative quality of life. The use of long-acting local anaesthetics is a promising strategy to improve postoperative analgesia. The aim of the present study was to investigate analgesic parameters and patient satisfaction after using 0.5% levobupivacaine (Lbup, 0.5% bupivacaine (Bup and 2% lidocaine with epinephrine 1:80,000 (Lid + Epi for an inferior alveolar nerve block following lower third molar surgery. Methods. A total of 102 patients (ASA I were divided into three groups, each of which received either 3 mL of Lbup, Bup or Lid + Epi. The intensity of postoperative analgesia was measured using a verbal rating scale (VRS. The total amounts of rescue analgesics were recorded on the first and during seven postoperative days. Patients satisfaction was noted using a modified verbal scales. Results. A significantly higher level of postoperative pain was recorded in Lid + Epi group compared to Bup and Lbup groups. No significant differences were seen between Bup and Lbup, but a significant reduction in the need for rescue analgesics was seen postoperatively in both Lbup and Bup (50% in comparison with Lid + Epi (80% in the first 24 hours. The same significant trend in rescue analgesic consumption was recorded for seven postoperative days. Patients’ overall satisfaction was significantly lower for Lid + Epi (10% than for Lbup (56% and Bup (52%. Conclusion. The use of a new and long-acting local anaesthetic 0.5% levobupivacaine is clinically relevant and effective for an inferior alveolar nerve block and postoperative pain control after third molar surgery. In our study Lbup and Bup controled postoperative pain more efficiently after lower third molar surgery compared to Lid + Epi. [Projekat Ministarstva nauke Republike Srbije, br. 175021

  6. Coelomic implantation of satellite transmitters in the bar-tailed godwit (Limosa lapponica) and the bristle-thighed curlew (Numenius tahitiensis) using propofol, bupivacaine, and lidocaine

    Science.gov (United States)

    Mulcahy, Daniel M.; Gartrell, Brett D.; Gill, Robert E.; Tibbitts, T. Lee; Ruthrauff, Daniel R.

    2011-01-01

    Intravenous propofol was used as a general anesthetic with a 2∶1 (mg∶mg) adjunctive mixture of lidocaine and bupivacaine as local anesthetics infiltrated into the surgical sites for implantation of satellite transmitters into the right abdominal air sac of 39 female and 4 male bar-tailed godwits (Limosa lapponica baueri and Limosa lapponica menzbeiri) and 11 female and 12 male bristle-thighed curlews (Numenius tahitiensis). The birds were captured on nesting grounds in Alaska, USA, and on overwintering areas in New Zealand and Australia from 2005 through 2008. As it was developed, the mass of the transmitter used changed yearly from a low of 22.4 ± 0.2 g to a high of 27.1 ± 0.2 g and weighed 25.1 ± 0.2 g in the final year. The mean load ratios ranged from 5.2% to 7.7% for godwits and from 5.7% to 7.5% for curlews and exceeded 5% for all years, locations, and genders of both species. The maximum load ratio was 8.3% for a female bar-tailed godwit implanted in Australia in 2008. Three godwits and no curlews died during surgery. Most birds were hyperthermic upon induction but improved during surgery. Two godwits (one in New Zealand and one in Australia) could not stand upon release, likely due to capture myopathy. These birds failed to respond to treatment and were euthanized. The implanted transmitters were used to follow godwits through their southern and northern migrations, and curlews were followed on their southern migration.

  7. Comparative Study on Anesthesia Effects of Bupivacaine and Ropivacaine in Cesarean Section Surgery%剖宫产手术中布比卡因与罗哌卡因的麻醉效果对比分析

    Institute of Scientific and Technical Information of China (English)

    何乃维

    2016-01-01

    Objective Comparatively study on anesthesia efects of Bupivacaine and Ropivacaine in cesarean section surgery.MethodsFrom January 2015 to November 2015, 49 cases of patients who were operated with cesarean section surgery in our hospital were divided into two groups according to diferent anesthesia treatment methods; 24 patients in control group were given about Bupivacaine anesthesia, while another 25 patients in study group were given about Ropivacaine anesthesia, and then to compare anesthesia taking-effect time, blocking-maintenance time, sensory-blocking take-effect time, blocking recovery time and side-effect incidence between two groups.Results Anesthesia taking-efect time, blocking-maintenance time, sensory-blocking take-efect time and blocking recovery time in study group were shorter than those in control group. And what’s more, the incidence rate of side-efect in study group was lower than that in control group; there were statisticaly significant diferences(P<0.05).Conclusion Ropivacaine is much more efective in anesthesia application of cesarean section surgery than Bupivacaine with lower side-efect incidence; thus, it is quite worthwhile to be attended.%目的:对比分析剖宫产手术中布比卡因与罗哌卡因的麻醉效果。方法选取2015年1~11月剖宫产手术患者49例纳入研究,按不同麻醉药物分组。术中麻醉采用布比卡因者24例,设对照组;采用罗哌卡因者25例,设研究组。组间比较麻醉起效时间、阻滞维持时间、感觉阻滞起效时间及阻滞恢复时间,不良反应率。结果两组中研究组麻醉起效时间、阻滞维持时间、感觉阻滞起效时间及阻滞恢复时间更短,不良反应率更低,差异有统计学意义(P<0.05)。结论剖宫产手术中采用罗哌卡因麻醉,其麻醉效果较布比卡因佳,麻醉不良反应较少。

  8. 剖宫产手术中布比卡因与罗哌卡因的麻醉效果对比分析%The Comparative Analysis of Bupivacaine and Ropivacaine Anesthesia Efficacy in Cesarean Surgery

    Institute of Scientific and Technical Information of China (English)

    尤琪

    2015-01-01

    Objective The bupivacaine and ropivacaine anesthesia efficacy in cesarean surgeryis are to be compared and analyzed. Methods Chose 37 patients operated with cesarean surgery in hospital from June 2013 to July 2014 and separate them into study group and control group at random. 20 patients in study group are given ropivacaine anesthesia treatment,while 17 patients in control group were given bupivacaine anesthesia treatment. And then observe and compare the anesthesia quality,patients’motion obstruction and emotion obstruction in two groups. Results The anesthesia taking effect time,the time to reach the highest block plane in study group are much longer than those in control group with shorter enduring time; besides,the anesthesia effect in study group is much better than that in control group; there is a differential between the two groups,such a differential has statistic value(P<0.05). Conclusion Bupivacaine is much more effective in treatment of cesarean surgery patients,it has advantages of quick anesthesia taking-effect time,slow anesthesia taking-effect time and shorter anesthesia enduring time,which is beneficial to prevent from complications occurrence,such as hypotension.%目的:探究剖宫产手术中采用罗哌卡因和布比卡因麻醉的具体效果。方法选取2013年6月~2014年7月收治的37例剖宫产手术患者,随机分组,实验组20例患者采用罗哌卡因的麻醉,对照组17例患者选择布比卡因的麻醉,对比两组患者的麻醉质量,运动阻滞和感觉阻滞。结果实验组患者的起效时间和达到最高阻滞的平面时间长于对照组,且维持时间较短,麻醉效果好于对照组,差异有统计学意义(P<0.05)。结论剖宫产在手术中采用罗哌卡因进行麻醉,麻醉效果好,起效时间慢,持续时间短,不容易有低血压等症并发症的出现。

  9. Effect analysis of the implementation of combined spinal epidural anesthesia by bupivacaine%布比卡因实施腰硬联合麻醉的效果分析

    Institute of Scientific and Technical Information of China (English)

    毛胜良

    2015-01-01

    Objective:To explore the sedative effect and value of the implementation of combined spinal epidural anesthesia by bupivacaine.Methods:120 patients with hypogastric operation were selected.They were randomly divided into two groups.They were given the implementation of combined spinal epidural anesthesia before surgery.The control group were given 1%ropivacaine anesthesia,the observation group were given 0.75% bupivacaine anesthesia.The analgesic onset times,analgesia duration times at T10 and total analgesic times of patients in two groups were compared.Results:The analgesia duration time at T10 and total analgesic time of the control group were significantly less than those of the observation group(P<0.05).Conclusion:Bupivacaine in the implementation of combined spinal epidural anesthesia can achieve an ideal analgesic effect.It can effectively reduce the pain degree of patients,and help to complete the operation smoothly.%目的:探讨布比卡因实施腰硬联合麻醉的镇痛效果及价值。方法:收治下腹部手术患者120例,随机分为两组,均在术前实施腰硬联合麻醉。对照组采用1%罗哌卡因麻醉,观察组采用0.75%布比卡因麻醉。比较两组患者的镇痛起效时间、T10处镇痛持续时间与总镇痛时间。结果:对照组 T10处镇痛持续时间与总镇痛时间均明显少于观察组(P<0.05)。结论:布比卡因在实施腰硬联合麻醉时能够取得理想镇痛效果,可有效减轻患者的疼痛程度,有助于顺利完成手术。

  10. 布比卡因、吗啡复合液对小儿唇裂术后疼痛的影响%Effects of bupivacaine and morphine combination on postoperative pain after cleft lip repair operation in paediatric patients

    Institute of Scientific and Technical Information of China (English)

    闵振兴; 顾文彤

    2013-01-01

    目的 观察布比卡因复合吗啡注射液应用于眶下神经阻滞对小儿唇裂术后镇痛的临床效果.方法 选择95例确诊为唇裂并行手术治疗的患儿,随机双盲分为布比卡因组(B组)47例和布比卡因、吗啡复合组(BM组)48例.常规诱导气管插管后,B组取0.25%布比卡因2 ml;BM组取0.25%布比卡因2 ml+1μg/kg吗啡注射液;两组均行双侧眶下神经阻滞,每侧1 ml.观察两组术后FLACC疼痛评分及不良反应.结果 两组患儿术后3、6小时FLACC评分差异无显著性(P>0.05),术后12、24小时差异有显著性(P<0.05),术后48小时差异有极显著性(P<0.01).B组总不良反应发生率为14.89%,BM组16.67%.结论 采用布比卡因、吗啡复合液行眶下神经阻滞对小儿唇裂术后具有良好的镇痛效果,且不良反应少,麻醉安全性高.%Objective To study effects of bupivacaine and morphine combination with infraorbital nerve block on postoperative pain after cleft lip repair operation in paediatric patients.Methods 50 paediatric patients (ASA I) aged from 12 to 60 months undergoing cleft lip repair were randomly divided into two groups,25 cases for each group.After tracheal intubation,group B (using bupivacaine) received bilateral infraorbital nerve block with 1 ml of 0.25% hupivacaine on each side and group BM (using bupivacaine and morphine combination) received 1 ml of 0.25% bupivacaine along with 1 μ g/kg body weight morphine.Pain after recovery from anaesthesia was assessed postoperatively using the FLACC scale.Results Physical characteristics of the children studied had no significant differences.The duration of analgesia from the time of administration of block in group B was (20.2 ± 2.6) h compared to (36.8 ± 3.4) h in group BM (P<0.01).Between two groups,the FLACC scale in group B was higher at 12,24 and 48 h postoperatively than those in group BM (P<0.01).Conclusion Addition of morphine as an adjunct to local anaesthetic significantly

  11. Bupivacaína racêmica, levobupivacaína e ropivacaína em anestesia loco-regional para oftalmologia: um estudo comparativo Racemic bupivacaine, levobupi vacaine and ropivacaine in regional anesthesia for ophtalmology: a comparative study

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    Edno Magalhães

    2004-04-01

    Full Text Available OBJETIVO: A bupivacaína racêmica, utilizada largamente em anestesia peribulbar devido à boa qualidade de bloqueio motor, apresenta menor margem de segurança para cardiotoxicidade em relação a ropivacaína e bupivacaína levógira. O objetivo deste estudo foi comparar o grau de bloqueio motor e alteração da pressão intra-ocular (PIO em anestesia peribulbar produzida pela bupivacaína racêmica, levobupivacaína e ropivacaína. MÉTODOS: Noventa e sete pacientes, estado físico I e II da classificação da Sociedade Americana de Anestesiologistas, submetidos a anestesia peribulbar, foram divididos em três grupos: grupo A-(n=16 bupivacaína racêmica 0,75% com adrenalina 1:200.000; grupo B -(n=16 bupivacaína levógira 0,75% com adrenalina 1:200.000; grupo C -(n=15 ropivacaína 0,75%. Utilizou-se 7ml da solução anestésica com 280 UI de hialuronidase, em punção única no rebordo orbital inferior. Foram registrados a PIO e grau de bloqueio motor 5 minutos antes da punção e 1, 2, 3, 4, 5 e 10 minutos após a punção. O bloqueio motor foi avaliado pela escala de Nicoll. Para a análise estatística, foram utilizados os testes de Wilcoxon, análise de freqüência simples e t de Student. Foi considerado significativo pBACKGROUND AND OBJECTIVE: Racemic bupivacaine, used in peribulbar anesthesia owing to its high potential to promote motor blockade, presents a smaller safety margin for cardiotoxicity in relation to ropivacaine and levobupivacaine. The objective of this study was to compare the degree of motor blockade and alteration of intraocular pressure (IOP produced by racemic bupivacaine, levobupivacaine and ropivacaine in peribulbar block. METHOD: Ninety seven patients, ASA physical status I and II, submitted to peribulbar anesthesia, were randomly allocated into three groups: group A-(n=16 receiving racemic bupivacaine 0.75% with epinephrine 1:200.000; group B -(n=16 levobupivacaine 0.75% with epinephrine 1:200.000; group C -(n=15

  12. Large A-fiber activity is required for microglial proliferation and p38 MAPK activation in the spinal cord: different effects of resiniferatoxin and bupivacaine on spinal microglial changes after spared nerve injury

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    Decosterd Isabelle

    2009-09-01

    Full Text Available Abstract Background After peripheral nerve injury, spontaneous ectopic activity arising from the peripheral axons plays an important role in inducing central sensitization and neuropathic pain. Recent evidence indicates that activation of spinal cord microglia also contributes to the development of neuropathic pain. In particular, activation of p38 mitogen-activated protein kinase (MAPK in spinal microglia is required for the development of mechanical allodynia. However, activity-dependent activation of microglia after nerve injury has not been fully addressed. To determine whether spontaneous activity from C- or A-fibers is required for microglial activation, we used resiniferatoxin (RTX to block the conduction of transient receptor potential vanilloid subtype 1 (TRPV1 positive fibers (mostly C- and Aδ-fibers and bupivacaine microspheres to block all fibers of the sciatic nerve in rats before spared nerve injury (SNI, and observed spinal microglial changes 2 days later. Results SNI induced robust mechanical allodynia and p38 activation in spinal microglia. SNI also induced marked cell proliferation in the spinal cord, and all the proliferating cells (BrdU+ were microglia (Iba1+. Bupivacaine induced a complete sensory and motor blockade and also significantly inhibited p38 activation and microglial proliferation in the spinal cord. In contrast, and although it produced an efficient nociceptive block, RTX failed to inhibit p38 activation and microglial proliferation in the spinal cord. Conclusion (1 Blocking peripheral input in TRPV1-positive fibers (presumably C-fibers is not enough to prevent nerve injury-induced spinal microglial activation. (2 Peripheral input from large myelinated fibers is important for microglial activation. (3 Microglial activation is associated with mechanical allodynia.

  13. Minimum effective dose of intrathecal bupivacaine in combination with sulfentanil for caesarean section%布比卡因复合舒芬太尼用于剖宫产术腰麻布比卡因的最低有效剂量研究

    Institute of Scientific and Technical Information of China (English)

    肖云瑞; 钟江红; 郭检文; 杨为一; 陈柏成; 黄秀兰

    2011-01-01

    Objective To determine the minimum dose of intrathecal bupivacaine in combination with sulfentanil for caesarean section with sequential experimental method.Methods Thirty cases with a singleton full-term pregnancy for caesarean section and under combined spinal-epidural anesthesia (CSEA) were enrolled in this study.Spinal puncture was performed at the L3-4 interspace.Patients were injected intrathecally with sulfentanil 5.0 μ g and bupivacaine.The minimum local analgesic dose was determined by up-and-down sequential experiment.The initial dose of the spinal bupivacaine was decided to be 7.5 mg.If succeeded,the next case would receive bupivacaine of a lower dose if failed,the dose of bupivacaine would be increased in the next case.The dose of spinal bupivacaine increased / decreased by 0.5 mg each time.The clinical efficacy was assessed by the motor block of the lower limb,the block height,and the duration of block.If Bromage scale were Ⅲ since anesthesia was induced after 10 min and the maximum plane of sensory block was maintained at T6 since anesthesia was induced after 60 min were defined as a success.Result The minimum local analgesic dose of intrathecal bupivacaine in combination with sulfentanil 5.0 μ g for caesarean section was 5.12 mg (95% confidence interval 7.8~9.9 mg).Conclusion Determining by sequential experiment method,the minimum local analgesic dose of intrathecal bupivacaine in combination with sulfentanil 5.0 μ g for caesarean section is 5.12 mg.%目的 采用序贯法测定布比卡因复合舒芬太尼腰麻用于剖宫产术布比卡因的最低有效剂量.方法 30例单胎和妊娠足月行剖宫产术患者,于L3~4蛛网膜下腔穿刺成功后,给予舒芬太尼5.0 ug复合布比卡因腰麻,第一个病人给予布比卡因7.5 mg,每次剂量调整0.5 mg.成功:麻醉诱导10 min内改良Bromage运动阻滞评分为3级,阻滞60 min内麻醉平面维持在T6水平,下一个病人的布比卡因用量减少0.5 mg;反之为失

  14. The influence of lidocaine and racemic bupivacaine on neuromuscular blockade produced by rocuronium: a study in rat phrenic nerve-diaphragm preparation Influência da lidocaína e da bupivacaína racêmica no bloqueio neuromuscular produzido pelo rocurônio: estudo em preparação nervo frênico-diafragma de rato

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    Vanessa Henriques Carvalho

    2009-06-01

    Full Text Available PURPOSE: To evaluate in vitro lidocaine and racemic bupivacaine effects in neuromuscular transmission and in neuromuscular blockade produced by rocuronium. METHODS: Rats were distributed in 5 groups (n = 5 in agreement with the studied drugs: lidocaine, racemic bupivacaine, rocuronium, separately (Groups I, II, III; rocuronium in preparations exposed to local anesthetics (Groups IV, V. The concentrations used were: 20 µg/mL, 5 µg/mL and 4 µg/mL, for lidocaine, bupivacaine and rocuronium, respectively. It was evaluated: 1 amplitude of diaphragm muscle response to indirect stimulation, before and 60 minutes after separately addition of lidocaine, racemic bupivacaine and rocuronium and the association of local anesthetics - rocuronium; 2 membrane potentials (MP and miniature end-plate potentials (MEPP. RESULTS: Lidocaine and bupivacaine separately didn't alter the amplitude of muscle response and MP. In preparations previously exposed to lidocaine and racemic bupivacaine, the rocuronium blockade was significantly larger (90.10 ± 9.15% and 100%, respectively, in relation to the produced by rocuronium separately (73.12 ± 9.89%. Lidocaine caused an increase in the frequency of MEPP, being followed by blockade; racemic bupivacaine produced decrease being followed by blockade. CONCLUSIONS: Local anesthetics potentiated the blockade caused by rocuronium. The alterations of MEPP identify presynaptic action.OBJETIVO: Avaliar in vitro os efeitos da lidocaína e bupivacaína racêmica na transmissão neuromuscular e no bloqueio neuromuscular produzido pelo rocurônio. MÉTODOS: Ratos foram distribuídos em 5 grupos (n = 5 de acordo com a droga estudada: lidocaina, bupivacaína racêmica, rocurônio, isoladamente (Grupos I, II, III; rocurõnio em preparações expostas aos anestésicos locais (Grupos IV, V. As concentrações utilizadas foram: 20 µg/mL, 5 µg/mL e 4 µg/mL, para lidocaína, bupivacaína e rocurônio, respectivamente. Avaliou-se: 1

  15. Estudo comparativo entre bupivacaína a 0,5% e mistura enantiomérica de bupivacaína (S75-R25 a 0,5% em anestesia peridural Estudio comparativo entre bupivacaína a 0,5% y mezcla enantiomérica de bupivacaína (S75-R25 a 0,5% en anestesia peridural Comparative study between 0.5% bupivacaine and 0.5% enantiomeric mixture of bupivacaine (S75-R25 in epidural anesthesia

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    Rosane Fossatti Gonçalves

    2003-04-01

    analgésico en el período pós-operatorio fue superior para el grupo S75-R25, comparado al grupo Bupivacaína (596 ± 436 minutos versus 463 ± 270 minutos, respectivamente; p = 0,04572. La incidencia de efectos adversos fue semejante entre los grupos. CONCLUSIONES: La mezcla enantiomérica de bupivacaína (S75-R25 presentó mayor tiempo analgésico y menor grado de bloqueo motor, comparada con la solución de bupivacaína racémicaBACKGROUND AND OBJECTIVES: A bupivacaine formulation containing 25% of R(+ and 75% of S(- isomer has been used because its anesthetic properties with less toxicity than the racemic bupivacaine. This study aimed at evaluating the racemic bupivacaine as compared to B25/75 in epidural anesthesia. METHODS: Participated in this study 44 patients who were distributed in two groups (n = 22, namely Bupivacaine and S75-R25. Patients were premedicated with intravenous midazolam. Epidural anesthesia was induced at L3-L4 or L2-L3 interspace with 16 to 24 ml of the anesthetic solution. Group Bupivacaine received 0.5% bupivacaine with vasoconstrictor. Group S75-R25 received the enantiomeric mixture of 0.5% bupivacaine with vasoconstrictor. The following parameters were evaluated: lower limb temperature before and after epidural block, blockade onset, type of sensation referred by the patient, possible sensory failures, metameric sensory level and motor block level. Time for first analgesic request in the PACU was also recorded. RESULTS: Forty-one patients completed the study. Groups were demographically similar. Perioperative midazolam dose, epidural anesthetic volume, blockade onset, sensory failures at pinprick, lower limb temperature in different moments, type of paresthesia sensation and anesthetic depth in dermatomes were similar between groups. Motor block was less intense in group S75-R25 (p = 0.0117 as compared to group Bupivacaine. Time to first postoperative analgesic dose was longer for group S75-R25 as compared to group Bupivacaine (596 ± 436

  16. Baixas doses de bupivacaína hipobárica para raquianestesia unilateral Dosis bajas de bupivacaína hipobárica para raquianestesia unilateral Low hypobaric bupivacaine doses for unilateral spinal anesthesia

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    Luiz Eduardo Imbelloni

    2003-09-01

    con el paciente en decúbito lateral, con el miembro a ser operado vuelto para arriba, y 3,3 ml de bupivacaína hipobárica fueron inyectados en la velocidad de 1 ml a cada 15 segundos. Bloqueo sensitivo y motor (picada de aguja y escala de 0 a 3 fueron comparados entre los lados que serian operados y el contralateral. RESULTADOS: Los bloqueos motor y sensitivo entre el lado operado y el contralateral fueron significativamente diferentes en todos los tiempos evaluados. Raquianestesia unilateral fue obtenida en 75% de los pacientes. Estabilidad hemodinámica fue observada en todos los pacientes. Ningún paciente desarrolló cefalea pos-raquianestesia. CONCLUSIONES: La bupivacaína hipobárica a 0,15% en dosis de 5 mg proporciona un predominante bloqueo unilateral. Veinte minutos son suficientes para su instalación. La principal ventaja de la raquianestesia unilateral es la estabilidad hemodinámica.BACKGROUND AND OBJECTIVES: The possibility to achieve unilateral spinal anesthesia with 0.15% bupivacaine was studied with the purpose of minimizing hemodynamic changes, limiting the cephalad dispersion of the anesthetic and promoting a faster recovery. METHODS: Twenty ASA I - II patients undergoing orthopedic surgeries were given spinal 0.15% hypobaric bupivacaine through a 27G Quincke needle. Dural puncture was performed with patients in the lateral position, with the limb to be operated upwards, and 3.3 ml (5 mg hypobaric bupivacaine were injected at the rate of 1 ml.15 s-1. Sensory and motor block (pinprick and 0 to 3 scale were compared between operated and contralateral sides. RESULTS: Motor and sensory block in operated and contralateral sides were significantly different in all evaluated times. Unilateral spinal anesthesia was achieved in 75% of patients. All patients remained hemodynamically stable, and no one developed post-dural puncture headache. CONCLUSIONS: Hypobaric bupivacaine (5 mg is able to provide a predominant unilateral block with the patient being

  17. Estudo comparativo entre clonidina associada à bupivacaína e bupivacaína isolada em bloqueio de plexo cervical para endarterectomia de carótida Estudio comparativo entre la clonidina asociada a la bupivacaína y la bupivacaína aislada en bloqueo de plexo cervical para endarterectomía de carótida A comparative study between bupivacaine and clonidine associated with bupivacaine in cervical plexus block for carotid endarterectomy

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    Walter Pinto Neto

    2009-08-01

    este estudio fue comparar el efecto analgésico de la clonidina con la bupivacaína con relación a la bupivacaína aislada en bloqueo de plexo cervical. MÉTODO: Se evaluaron 30 pacientes, de forma aleatoria y en doble ciego, divididos en dos grupos: G1 recibió 1,5 mg.kg-1 de bupivacaína a 0,375% asociados a 150 ¼g de clonidina (2 mL y G2, 1,5 mg.kg-1 de bupivacaína a 0,375% asociados a la solución fisiológica (2 mL. Se evaluaron la frecuencia cardiaca y la presión arterial en los momentos 0 (bloqueo, 30, 60, 90 y 120 minutos; la necesidad de complementación anestésica; el momento para la primera complementación analgésica; la cantidad de analgésico usado y la intensidad del dolor en el momento 0 (término de la operación, 30, 60, 120, 240 y 360 minutos. RESULTADOS: La complementación anestésica con lidocaína fue de 3,8 mL en el G1 y 3,6 mL en el G2 sin diferencias estadísticas significativas. El momento para la primera complementación fue de 302,6 ± 152,6 minutos en el G1, y de 236,6 ± 132,9 minutos en el G2, sin diferencia significativa. No hubo diferencia en la dosis de dipirona y tramadol usada. No hubo diferencia en la intensidad del dolor entre los grupos. CONCLUSIÓN: La asociación de 150 ¼g de clonidina a bupivacaína en el bloqueo de plexo cervical para la endarterectomía de carótida, no generó ninguna mejoría significativa del efecto analgésico evaluado por la intensidad del dolor, en la primera complementación analgésica y en la cantidad de analgésico complementario.BACKGROUND AND OBJECTIVES: Neurological evaluation can be done during cervical plexus block for endarterectomy, which also maintains postoperative analgesia. The objective of this study was to compare the analgesic effects of clonidine associated with bupivacaine to those of bupivacaine in cervical plexus block. METHODS: A randomized double-blind study was undertaken with 30 patients divided in two groups: G1 received 1.5 mg.kg-1 of 0.375% bupivacaine associated

  18. Evaluación de la infiltración local de bupivacaina en el manejo del dolor post salpingectomía parcial bilateral Evaluation of the Local Infiltration with Bupivacaine in the Management of Pain Post Partial Bilateral Salpingectomy

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    Mariella Fajardo-Arcia

    2011-12-01

    Full Text Available Objetivo: Se valoró la eficacia de la infiltración local de bupivacaína en la disminución del dolor postoperatorio en las pacientes sometidas a salpingectomía parcial bilateral por mini laparotomía. Métodos: Un total de 100 participantes programadas para esterilización quirúrgica fueron aleatorizadas a un grupo intervención donde se aplicó 2.5mg de bupivacaína en el mesosalpinx y 2.5mg en el muñón de cada trompa de Falopio y a un grupo control sin intervención alguna. El dolor postoperatorio fue medido después de una y cuatro horas usando la escala visual análoga (EVA, 0-10 cm,y se determinó la necesidad y cantidad de analgesia postoperatoria. Para la comparación de medias se utilizó la prueba t-Student, y todos los análisis fueron realizados por medio del software estadístico Stata 10.0 definiendo como estadísticamente significativo un punto crítico de 0.05 (p≤0.05. Resultados: La puntuación en la escala visual análoga (EVA, en el grupo de bupivacaína fue 4.7 y 2.6 comparado con 5.3 y 2.6 en el grupo control, a la hora y a las cuatro horas respectivamente (todas las p> 0.05.La aplicación de bupivacaína redujo la solicitud por parte de la participante de una segunda dosis de analgesia después de la primera hora de la cirugía de forma significativa (pAim: To evaluate the efficacy of locally applied bupivacaine in decreasing postoperative pain in patients undergoing minilaparotomybilateral partial salpingectomy. Methods: A total of 100 women scheduled for surgical sterilization were randomized to either an intervention group that received 2.5mg of bupivacaine in the mesosalpinx and 2.5 mg in the stump of each fallopian tube or a control group that received no intervention. Postoperative pain was measured at one and four hours using the visual analogue scale (VAS, 0-10 cm. In addition, these scores determined the necessity and quantity of postoperative analgesia.To compare means we used Student t-test and all tests

  19. Study on the dose of bupivacaine for combined spinal- epidural anesthesia in caesarean section%腰硬联合麻醉剖宫产术中布比卡因剂量的临床进展

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    徐敏; 董有静; 苑妍新

    2010-01-01

    Although bupivacaine for combined spinal-epidural anesthesia (CSEA) in cesarean section is widely used ,its optimal dose in spinal anesthesia for cesarean section is still difficult to determine. There are four methods in the literature to make maternal hemodynamic parameters more stable and to lower incidence of side-effects while providing equally effective anesthesia.The four methods include a low dose spinal anesthesia combined with epidural anesthesia, an adjusted dose of local anaesthetic for spinal anaesthesia according to body height and weight, epidural volume extension (EVE) by an epidural injection of physiological saline solution and a low-dose local anesthetic-opioid spinal anesthesia. The most optimal one among the 4 methocls are still worthy of further study.%布比卡因腰硬联合麻醉(combined spinal-epidural anesthesia,CSEA)在剖宫产中的应用较多,但其腰麻用于剖宫产术的最佳剂量较难确定,通过阅读文献发现有4种方法分别为给予小剂量腰麻,把腰麻限制在低位节段,通过硬膜外追加利多卡因来加强麻醉效果;根据身高与体重调节腰麻的剂量;通过硬膜外注射盐水来减少腰麻剂量;通过布比卡因腰麻复合阿片类药物来减少腰麻剂量,可使母体血液动力学相对稳定,副作用发生率低,麻醉效果好,但在这4种给药方法中,究竟哪一种能使剖宫产患者血液动力学最稳定、麻醉效果最好、副作用最少,还有待于进一步研究.

  20. Bupivacaine 0,25% versus ropivacaine 0,25% in brachial plexus block in dogs of beagle breedBupivacaína 0,25% versus ropivacaína 0,25% no bloqueio do plexo braquial em cães da raça beagle

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    Thiago Ignácio Wakoff

    2013-06-01

    Full Text Available The brachial plexus block (BPB is a regional anesthesia technique which enables the attainment of surgical procedures distal scapulohumeral articulation. This study aimed to compare the efficacy of ropivacaine and bupivacaine 0.25% without vasoconstrictor in BPB guided by electrical stimulation in dogs. Thirteen male and female beagle dogs underwent a BPB using bupivacaine and ropivacaine 0.25% (4mg/kg, both alone and in different times. The anesthesic block was performed in the right forelimb and as control group the block proceeded in the left forelimb using a solution of sodium chloride 0.9% in volume corresponding to the drug in the contralateral limb. The block was performed after the localization of the radial nerve with the aid of eletrical stimulation, which was infiltrated half the volume of anesthetic calculated and subsequently the remaining solution was administered on the median nerve. We evaluated sensitive and motor latencies and sensitive and motor block total time by clamping technique. In the present study, a technique for electrical stimulation was effective in 100% of animals. Bupivacaine had lower motor latency period, however, the sensitive latency between the two groups showed no statistically significant differences. In the block total time, bupivacaine obtained time significantly higher. Clinical signs characteristic of Horner’s syndrome were present in 15% of animals treated with bupivacaine. Furthermore, two animals presented signs of cardiotoxicity in bupivacaine group. The use of bupivacaine (4mg/kg without vasoconstrictor in dogs brachial plexus block provided longer analgesia and motor blockade, however, ropivacaine at the same dose and concentration was found to be free of deleterious effects associated of cardiovascular instability, hemodynamic and respiratory. O bloqueio do plexo braquial (BPB é uma técnica de anestesia regional que possibilita a realização de procedimentos cirúrgicos distais a articula

  1. Study on the postmortem distribution of bupivacaine in epidural anesthesia death dogs%布比卡因在硬膜外麻醉致死犬体内的分布

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    张高勤; 武夺; 贠克明; 张大明

    2009-01-01

    Objective To establish the model of bupivacayne epidural anesthesia death, and investigate the distribution of bupivacayne in epidural anesthesia death dogs.Methods Eighteen male dogs were randomly allocated to three groups. Six dogs were given a dose of 5 mg/kg body weight of bupivacaine hydrochloride by the subarachonid anesthesia tube at an even speed in five minutes, while the other six in the second group were given 15 mg/kg, the last three dogs in control group were given 15 mg/kg weight of physiological salt solution. The vital signs from beginning of the administration to the death were recorded by a biological function system. The cerebrum, cerebrospinal fluid (CSF) in lateral ventricle, spinal cord (cervical spinal cord, thoracic spinal cord, lumbar spinal cord and sacrum spinal cord), heart, lung, liver, spleen, kidney, bile, urine, heart blood, peripheral blood, muscle in injection location and muscle in no injection location were collected and analyzed immediately after the death. These samples were extracted by ethyl ether. Analysis was performed with a GC equipped with a NPD and a GC/MS. The qualitative analysis was based on retention time in the chromatographic system coupled with the ion fragmentation spectrum in the mass spectrometer. The quantitative analysis was on an internal standard method. Results The bupivacaine concentrations detected in sacrum spinal cord, cervical spinal cord, thoracic spinal cord, lumbar spinal cord, kidney, cerebrum and CSF were much higher in the 5mg/kg group. While in 15mg/kg group the concentrations detected in cervical spinal cord, thoracic spinal cord, lumbar spinal cord, sacrum spinal cord and CSF were much higher. Conclusion There was a relationship between the poisoning symptom, postmortem distribution and the administration dose, which may provide some evidences for the investigation of suspected epidural anesthesia accident case.%目的 建立布比卡因硬膜外麻醉致死的动物模型,探讨其在致

  2. Bupivacaína a 0,15% hipobárica para raquianestesia posterior (dorsal versus bupivacaína a 0,5% hiperbárica para procedimentos cirúrgicos anorretais em regime ambulatorial Bupivacaína a 0,15% hipobárica para raquianestesia posterior (dorsal versus bupivacaína a 0,5% hiperbara para procedimientos quirúrgicos anorrectales en régimen ambulatorial Hypobaric 0.15% bupivacaine versus hyperbaric 0.5% bupivacaine for posterior (dorsal spinal block in outpatient anorectal surgery

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    Luiz Eduardo Imbelloni

    2006-12-01

    OBJECTIVES: The aim of this study was to study low dose hypobaric 0.15% bupivacaine and hyperbaric 0.5% bupivacaine in outpatient anorectal surgical procedures. METHODS: Two groups of 50 patients, physical status ASA I and II, undergoing anorectal surgical procedures in a jackknife position, received 6 mg of hypobaric 0.15% bupivacaine in the surgical position (Group 1 or 6 mg of hyperbaric 0.5% bupivacaine in the sitting position for 5 minutes, after which they were placed in a jackknife position (Group 2. Sensitive and motor blockade, time of first urination, ambulation, complications, and the need for analgesics were evaluated. Patients were followed until the third postoperative day and questioned whether they experienced post-puncture headache or temporary neurological symptoms, and until the 30th day and questioned about permanent neurological complications. The test t Student, Mood's median, and Fisher Exact test were used for statistical analysis, and a p < 0.05 was considered significant. RESULTS: Every patient in Group 1 presented selective blockade of the posterior sacral nerve roots, while patients in Group 2 experienced blockade of the anterior and posterior nerve roots. Blockade was significantly higher in Group 1. Motor blockade was significantly less severe in Group 1. Forty-nine patients in Group 1 transferred to the stretcher unassisted while only 40 patients in Group 2 were able to do so. Recovery in Group 1 occurred in 105 ± 25 minutes and in 95 ± 15 minutes in Group 2, and this difference was not statistically significant. There were no hemodynamic changes, nausea or vomiting, urine retention, or post-puncture headache. CONCLUSIONS: Anorectal surgical procedures under spinal block with low dose bupivacaine, hyperbaric or hypobaric, can be safely done.

  3. Comparison on the influence of different doses Bupivacaine combined with pinal-epidural anesthesia for hemorheology of parturient underwent caesarean section%不同剂量布比卡因腰硬联合麻醉对剖宫产产妇血液流变学影响比较

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    李静

    2012-01-01

    Objective To compare the influence of different doses bupivacaine combined with spinal -epidural anesthesia for hemorheology of parturient underwent caesarean section. Methods 84 parturient underwent caesarean section with spinal-epidural anesthesia in our hospital from October 2009 to October 2011 were selected as research object, and they were divided into group A and group B with 42 cases in each group, the group A were given 7.0 mg 0.75% Bupivacaine, the group B were given 9.0 mg 0.75% Bupivacaine, then the incidence of adverse reactions and hemorheology indexes before and after the anesthesia at 5, 15, 30 min of two groups were detected and compared. Results The after the anesthesia at 5, 15, 30 min of group B were all lower than those of group A (all P 0.05). Conclusion The influence of 9.0 mg 0.75% Bupivacaine for hemorheology of parturient underwent caesarean section is more obvious, and it can sig nificantly improve blood circulation status of parturient and the security is higher, so it is more suitable for cesarean section.%目的 比较不同剂量布比卡因腰硬联合麻醉对剖宫产产妇血液流变学的影响.方法 选取2009年10月~2011年10月于本院进行采用腰硬联合麻醉进行剖宫产的84例产妇为研究对象,将其分为A组与B组,每组各42例.A组采用7.0 mg的0.75%布比卡因进行麻醉,B组采用9.0 mg的0.75%布比卡因进行麻醉,后将两组产妇不良反应发生率及麻醉前及麻醉后5、15、30 min的血液流变学指标进行检测及比较.结果 B组麻醉后5、15、30 min的各项血液流变学指标低于A组(均P < 0.05),而两组患者不良反应发生率比较差异无统计学意义(P > 0.05).结论 9.0 mg的0.75%布比卡因对剖宫产产妇的血液流变学影响更为明显,可显著改善产妇的血液循环状态,且安全性也较高,故更适用于剖宫产术.

  4. The influences of instillation of bupivacaine through chest and axillary drains into the wound to the postoperative pain and immunity of modified radical mastectomy%引流管灌注布比卡因对乳腺癌改良根治术患者术后疼痛和免疫的影响

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    路喻清; 冯阳阳; 蔡惠

    2016-01-01

    目的:探究乳腺癌改良根治术术后通过引流管灌注布比卡因对患者术后疼痛和免疫的影响.方法:收集于2014年1月至2015年6月就诊并手术的乳腺癌患者,随机分为乳腺癌改良根治术术后通过引流管灌注组(实验组)和生理盐水灌注组(对照组),并采集患者术前术后血清,分别对两组患者进行术后疼痛评分和血清免疫因子IL-1β、IL-2、IL-4、IL-5、IL-6、IL-8、IL-10、IFNγ、TNF-α的测定.结果:实验组的疼痛分数无论是在术后24小时后还是48小时后均明显小于对照组(P<0.05),差异具有统计学意义.9种免疫因子中,仅有IL-1β和IL-10的术前术后变化在实验组和对照组是有差异的,IL-1β在两组术后均趋近减少,但实验组幅度更大(P<0.05);IL-10术后在实验组增加,但在对照组减少,差异具有统计学意义(P<0.05).结论:通过引流管灌注布比卡因对乳腺癌改良根治术患者进行术后麻醉可以减轻患者的术后疼痛、调节患者免疫、促进抑癌免疫的产生.%Objective:Studing postoperative pain and immunityof modified radical mastectomyafter using instilla-tion of bupivacaine through chest and axillary drains into the wound. Methods:Primary breast cancer patients,were randomized to Bupivacaine(n=29)or control(n=27)groups. Postoperative pain and serum concentrations of 9cy-tokines(IL-1β,IL-2,IL-4,IL-5,IL-6,IL-8,IL-10,IFNγ,TNF-α)were measured. Results:There was a significant difference in 24h and 48h postoperative painbetween the groups(P<0. 05). Patients in the bupivacaine-group showed a greater percentage decrease in postoperative compared with preoperative IL-1β(P<0. 05),anda significant increase in IL-10compared with the control group(P<0. 05). Conclusion:Using instillation of bupiva-caine through chest and axillary drains into the wound after the modified radical mastectomy can reduce postoperative pain and regulate the immunity to inhibit tumor.

  5. Volume anestésico mínimo para bloqueio retrobulbar extraconal: comparação entre soluções a 0,5% de bupivacaína racêmica, de levobupivacaína e da mistura enantiomérica S75/R25 de bupivacaína Volumen anestésico mínimo para bloqueo retrobulbar extraconal: comparación entre soluciones a 0,5% de bupivacaína racémica, de levobupivacaína y de la mezcla enantiomérica S75/R25 de bupivacaína Minimum anesthetic volumes for extraconal retrobulbar block: comparison between 0.5% racemic bupivacaine, levobupivacaine and enantiomeric mixture S75/R25 bupivacaine

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    Luiz Fernando Soares

    2005-06-01

    después de 10 minutos como: 0 (ausente, 1 (diminuida ó 2 (normal. La suma de los resultados constituyó el resultado total de movilidad (ETM del globo ocular. El volumen inicial fue de 7,4 mL. Los volúmenes utilizados en pacientes subsiguientes correspondieron 0,1 unidad logarítmica mayor (ETM > 2 ó menor (ETM BACKGROUND AND OBJECTIVES: Minimum anesthetic volume (MAV of local anesthetics corresponds to the effective volume for regional anesthesia in 50% of patients. In this study, MAV of 0.5% racemic bupivacaine, 0.5% levobupivacaine and enantiomeric S75/R25 bupivacaine were calculated and compared. METHODS: This study involved two series of patients undergoing cataract extraction. Series 1 patients received either 0.5% racemic bupivacaine (n = 9 or 0.5% levobupivacaine (n = 11. Series 2 patients received either 0.5% racemic bupivacaine (n = 11 or 0.5% enantiomeric S75/R25 bupivacaine (n = 10. Blockades were achieved by single-injection and inferior-lateral approach. Motility of each rectus muscle was assessed 10 minutes later as: 0 (absent, 1 (decreased or 2 (normal. Total muscle scores represented total eye motility score (TMS. Local anesthetic volume administered to the first patient of each group was 7.4 mL. Subsequent patients received volumes corresponding to 0.1 higher natural logarithm unit (if TME > 2 or lower (if TME < 2 as compared to natural logarithm of preceding volume. Massey and Dixon's formulae were used for MAV calculations. RESULTS: MAVs of bupivacaine in both series were 6 mL and 6.2 mL, respectively. MAVs of levobupivacaine and enantiomeric S75/R25 bupivacaine were 5.7 mL and 5.8 mL, respectively. There were no differences between groups in effective anesthetic volumes. CONCLUSIONS: Similar volumes of 0.5% racemic bupivacaine, 0.5% levobupivacaine and enantiomeric S75/R25 bupivacaine are needed for extraconal retrobulbar anesthesia.

  6. Bupivacaína levógira a 0,5% pura versus mistura enantiomérica de bupivacaína (S75-R25 a 0,5% em anestesia peridural para cirurgia de varizes Bupivacaína levógira a 0,5% pura versus mezcla enantiomerica bupivacaína (S75-R25 a 0,5% en anestesia peridural para cirugía de várices Plain 0.5% levogyrous bupivacaine versus 0.5% bupivacaine enantiomeric mixture (S75-R25 in epidural anesthesia for varicose vein surgery

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    José Delfino

    2001-12-01

    inferiores. La casuística, entretanto, no es aún suficiente para permitir conclusiones definitivas.BACKGROUND AND OBJECTIVES: The cardiotoxic effect of racemic bupivacaine (50:50 is still the major safety-related variable for regional blocks requiring higher concentrations and volumes. Recent animal studies suggested that the manipulation of racemic bupivacaine enantiomers could contribute for a better therapeutic efficacy by decreasing its potential toxicity. This study aimed at evaluating the efficacy of 0.5% bupivacaine enantiomeric mixture (S75-R25 as compared to plain S(-100% bupivacaine in lumbar epidural anesthesia for varicose vein surgery. METHODS: Participated in this randomized double-blind study 30 female patients aged 15 to 65 years, physical status ASA I or II scheduled for elective lower limb varicose vein surgery, who were allocated into two groups: S75-R25 Group - 20 ml (100 mg of 0.5% (S75-R25 bupivacaine; and Levogyrous Group - 20 ml (100 mg of 0.5% plain S(-100 bupivacaine without adjuvants. Characteristics of sensory and motor block as well as the incidence of side effects were investigated. RESULTS: Significant demographic differences and a longer surgical time were found in the S75-R25 Group. Faster spread and lower analgesic effects of the isomeric mixture were statistically significant. Motor block was significantly deeper in the S75-R25 Group. Side effects were negligible for both groups. CONCLUSIONS: Fewer side effects, good patients acceptance and the lack of post-operative transient neurological symptoms point towards the safety of both solutions in lumbar epidural anesthesia for elective varicose vein surgery. The sample, however, is still small for final conclusions.

  7. 罗比卡因与布比卡因用于小儿术后镇痛的比较%To compare the differences in analgesia effect and complication of the same concentrated ropivacaine and Bupivacaine after epidural anaesthesia in children

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    岳玲; 范荣

    2009-01-01

    目的 比较相同浓度的罗比卡因与布比卡因用于小儿硬膜外术后镇痛的镇痛效果和并发症.方法 选择60例行腰硬联合麻醉的腹部手术患儿随机分成两组行硬膜外术后镇痛,A组用0.1%罗比卡因,B组用0.1%布比卡因,每组分别复合芬太尼2 ug/ml,镇痛泵容量为100 ml,泵速为2 ml/h,维持镇痛时间48 h.观察指标有运动神经阻滞评分、手术后各时段的SpO2、BP、HR,OPS法镇痛效果评分、并发症情况.结果 A组和B组比较,下肢运动阻滞程度两者相比差异有统计学意义(P0.05),并发症两者相似(P>0.05).结论 0.1%罗比卡因复合芬太尼2 ug/ml具有同0.1%布比卡因复合芬太尼2 ug/ml同样的镇痛效应,而且对运动神经影响轻微,有利于患儿早期下床活动,用于小儿术后镇痛值得推广.%Objective To compare the differences in analgesia effect and complication of the same concentrated ropivacaine and Bupivacaine after epidural anaesthesia in children. Methods Divide 60 children randomly into group A and group B ,perform anagesia after epidural anaethesia with 0.1%ropivacaine in group A and 0.1% Bupivacaine in group B.Pump Fentanyl 2 ug/ml with the speed of 2 ml/h and the total dosage of 100 ml in 48 h simultaneously. The observation index includes motor nerve block score/SpO2,BP,HR in different periods after operation、anagesia effect score of OPS and complication. Results It has a significant difference in inferior extremity motor nerve block(P0.05) between the two groups. Conclusion 0.1% ropivacaine has the same level of anagesia effect as 0.1% Bupivacaine combinated by Fentanyl 2 ug/ml,and it has smaller influence on motor nerve.It is profit for children' early ambulation,so it is worth of generalization.

  8. A comparison of combined spinal-epidural anesthesia with isobaric levobupivacaine and hyperbaric bupivacaine for cesarean sections%等比重左旋布比卡因和重比重布比卡因腰硬联合麻醉用于剖宫产手术的效果比较

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    李军; 魏志英; 段思源; 刘晶

    2015-01-01

    Objective It is to investigation the efficacy and safety of combined spinal -epidural anesthesia ( CSEA) with i-sobaric levobupivacaine and hyperbaric bupivacaine for cesarean sections .Methods Sixty primiparaes ( ASAⅠ Ⅱ) sched-ualed for elective caesarean section were divided into two groups with 30 cases each.Isobaric levobupivacaine group (LFgroup) received 0.5%isobaric levobupivacaine 10mg;Hyperbaric bupivacaine group ( BFgroup) received 0.5% hyperbaric bupiva-caine10mg.Sensory and motor block characteristics of the groups were assessed with pinprick and Bromage scale ; Hemody-namic changes and side effects were observed and recorded in both groups .Results The time to reach maximum dermatome for the sensory block, time to regression and time to regress to T12 dermatome was found to be significantly long in Group BF .It was observed that in Group BF , the evolution of the motor block was faster and lasted longer .Whereas hypotension , bradycar-dia and nausea were less in Group LF(P<0.05).Conclusion Since motor block time is shorter, and side effects like hypo-tension, bradycardia and nausea are less ,levobupivacaine for combined spinal-epidural anesthesia can be a good alternative in cesarean sections .%目的:评估0.5%等比重左旋布比卡因10 mg与0.5%重比重布比卡因10 mg腰硬联合麻醉用于剖宫产的临床效果。方法将60例ASAⅠ~Ⅱ级择期剖宫产的产妇随机分为2组,每组30例。 LF组用0.5%等比重左旋布比卡因10 mg进行腰硬联合麻醉;BF组用0.5%重比重布比卡因10 mg腰硬联合麻醉。用针刺皮肤法和改良运动阻滞(Bromage)分级法评估2组感觉和运动阻滞情况,观察并记录2组血流动力学变化和不良反应发生情况。结果 LF组达到最大感觉阻滞时间、感觉阻滞消退时间以及感觉阻滞消退平面达T12的时间均短于BF组,BF组运动阻滞发展的更快,持续时间更长;LF组低血压、心动过缓、恶心

  9. Efeitos antinociceptivos, analgésicos e histopatológicos de dexmedetomidina e bupivacaína intratecal em rato Efectos antinociceptivos, analgésicos e histopatológicos de dexmedetomidina y bupivacaína intratecal en ratones Anti-nociceptive, analgesic and pathohistological effects of intrathecal dexmedetomidine and bupivacaine in rats

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    Başar Erdivanli

    2013-04-01

    prolonga la duración del bloqueo.BACKGROUND AND OBJECTIVES: This study investigates analgesic and nociceptive effects of adding dexmedetomidine to bupivacaine neuraxial anesthesia through Tail-flick (TF and Hot-plate (HP tests and the pathohistological changes on spinal nerves and nerve roots through light microscopy. METHODS: Forty anesthetized, male Sprague-Dawley rats were intrathecally catheterized. Basal values of TF and HP tests were measured before and after catheterization. Thirty-six successfully catheterized rats were assigned to four groups. Group B received 10 µg bupivacaine, Group BD3 received 10 µg bupivacaine + 3 µg dexmedetomidine, Group BD10 received 10 µg bupivacaine + 10 µg dexmedetomidine and Control group received 10 µL volume of artificial cerebrospinal fluid. TF and HP tests were performed between the 5th and 300th minutes of drug administration. Twenty-four hours after administration of drugs, rats were sacrificed and spinal cord and nerve roots were removed for pathological investigation. RESULTS: Baseline values of the TF and HP tests were not statistically different among the groups (6.8 ± 0.15 s. TF and HP latencies in the Control group did not change significantly during the study. TF and HP test results showed that adding 3 and 10 µg dexmedetomidine caused a dosedependent increase in duration and amplitude of analgesic and nociceptive effect of bupivacaine (TF: 37.52 ± 1.08%, 57.86 ± 1.16% respectively, HP: 44.24 ± 1.15%, 68.43 ± 1.24% respectively. CONCLUSIONS: There were no apparent pathohistological changes at least 24 hours after the intrathecal administration of a single dose of dexmedetomidine 3 µg and 10 µg. Dexmedetomidine added to bupivacaine for spinal block improves analgesia and prolongs block duration.

  10. Flunixin meglumine ou bupivacaína como técnicas analgésicas pós-toracotomia lateral intercostal em cães Flunixin meglumine or bupivacaine as postoperative analgesic techniques for lateral intercostal thoracotomy in dogs

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    Simone Dal Pai

    1997-12-01

    Full Text Available Dezesseis cães, adultos, sem raça definida, foram submetidos à toracotomia lateral intercostal e separados em dois grupos para estudo de diferentes protocolos analgésicos. Os animais receberam como terapia analgésica flunixin meglumine no período pré-operatório (grupo I ou bupivacaína intratorácica (grupo II. Todos os crães estiveram sob cuidados intensivos em sala de recuperação durante quatro horas de período pós-operatório quando foram monitorados o volume corrente pulmonar, a gasometria arterial, o tempo de reperfusão capilar, a coloração das mucosas ocular e oral, as freqüências respiratória e cardíaca e a temperatura retal. Uma ficha de escores para avaliação de dor pós-operatória foi elaborada para o acompanhamento dos animais de ambos os grupos. Os resultados demonstraram a ocorrência de diminuição dos valores de pressão parcial arterial de oxigênio abaixo dos índices fisiológicos após a toracotomia. A análise estatística de comparação entre os valores meédios calculados, não revelou diferença significativa entre os cães do grupo I e os do grupo II. No presente estudo, tanto a utilização intravenosa do flunixin meglumine quanto a administração intratorácica de bupivacaína foram efetivas na analgesia pós-operatória.Lateral intercostal thoracotomy was performed in sixteen mongrel adult dogs divided in two groups for diferent analgesic treatments. The dogs of group I received intravenous flunixin meglumine before surgery as an analgesic protocol, and those of group II received interpleural bupivacaine for the same purpose of pain control. All animals were maintained in a recovery room during four hours in which were monitored the pulmonary tidal volume, blood gas, capillary refill time, mucous membrane color, respiratory and heart rates and rectal temperature. Pain scores were used to evaluate the effect of the analgesic technics in groups I and II. The results showed a reduction on the

  11. Anestesia peridural para cesariana: estudo comparativo entre Bupivacaína Racêmica (S50-R50 e Bupivacaína com excesso enantiomérico de 50% (S75-R25 a 0,5% associadas ao Sufentanil Anestesia epidural para cesárea: estudio comparativo entre Bupivacaína Racémica (S50-R50 y Bupivacaína con exceso enantiomérico de 50% (S75-R25 a 0,5% asociadas al Sufentanil Epidural block for cesarean section: a comparative study between 0.5% racemic Bupivacaine (S50-R50 and 0.5% enantiomeric excess Bupivacaine (S75-R25 associated with Sufentanil

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    Angélica de Fátima de Assunção Braga

    2009-06-01

    étrica.BACKGROUND AND OBJECTIVES: Epidural 0.5% racemic bupivacaine associated with opioids is a technique used in cesarean sections; however, its toxicity has been questioned. 50% Enantiomeric excess bupivacaine has lower cardio- and neurotoxicity. The efficacy of epidural 0.5% racemic bupivacaine and 0.5% enantiomeric excess bupivacaine associated with sufentanil in parturients undergoing cesarean sections was evaluated. METHODS: Fifty gravida at term, undergoing elective cesarean section under epidural block, were divided in two groups according to the local anesthetic used: Group I - 0.5% racemic bupivacaine with vasoconstrictor; and Group II - 0.5% enantiomeric excess bupivacaine (S75-R25 with vasoconstrictor. In both groups, the local anesthetic (100 mg was associated with sufentanil (20 µg, and a total of 24 mL of the solution was used. The following parameters were evaluated: latency of the sensitive blockade; maximal level of the sensitive blockade; degree for motor blockade; time of motor blockade regression; duration of analgesia; maternal side effects; and neonatal repercussions. RESULTS: Latency, maximal level of sensitive blockade, degree of motor blockade, and duration of analgesia were similar in both groups; the mean time for regression of the motor blockade was significantly smaller in Group II. The incidence of side effects was similar in both groups. Maternal cardiocirculatory changes and neonatal repercussions were not observed. CONCLUSIONS: Epidural racemic bupivacaine and 50% enantiomeric excess bupivacaine provided adequate anesthesia for cesarean sections. 50% Enantiomeric excess bupivacaine is a promising alternative for this procedure, since it has faster regression of the motor blockade, which is desirable in obstetric patients.

  12. A “ COMPARATIVE STUDY BETWEEN BUPIVACAINE 0.5% AND ROPIVACAINE 0.75% IN EPIDURAL ANALGESIA IN PATIENTS U NDERGOING ELECTIVE LOWER ABDOMINAL AND LOWER LIMB SURGERIES ”

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    Sachidanand

    2015-09-01

    Full Text Available BACKGROUND : Regional anaesthesia is noted for its simplic ity, safety and effectiveness. Though spinal anaesthesia provides an efficient block it has some limitations. Epidural anaesthesia is one of regional techniques for lower abdominal and lower limb surgeries. Bupivacaine is the drug of choice for providing e ffective epidural analgesia. Ropivacaine is new long acting local anaesthetic with similar chemical structure but with less cardio toxicity and CNS toxicity. We did a Prospective Randomised control study to c o m p a r e between t wo g r o u ps - 20 m l o f 0.75% R op i v ac a i ne ( I sob ar i c a nd 20 m l 0. 5 % B up i v a ca i ne ( I sob ar i c f o r e p i du ra l a n ae s t h e s i a i n l ow e r a bdo mi n a l a nd l ow e r li m b su r g er i e s i n a du lt s a g e d 1 8 t o 60 y e ar s. AIM : To compare in two groups - 20 m l o f 0.75% R op i v aca i ne ( I sob ar i c a nd 20 m l 0. 5 % B up i v a ca i ne ( i sob ar i c f o r e p i du ra l a n ae s t h e s i a i n l ow e r a bdo mi n a l a nd l ow e r li m b su r g er i e s i n a du lt s DESIGN : A Prospective randomized control study . METHODS : Th e s t ud y p o p ul a t i on w as r a nd o m l y di v id e d in t o 2 g r o up s w i t h 30 p a t i e n t s i n e a c h g r o up . S t ud y g r o u p R - rece i v e d 20 m l of 0.75% Ro pi v a c a in e ( I so b a r i c b y e pidu r al r o u t e S t ud y g r o u p B - rece i v e d 20 m l of 0.5% B upi v a c a in e ( i so b a r i c b y e pidu r al r o u t e and compared 1. Ons e t of s e nso r y a nd m o t or b l o c k, 2. H i g h e st l e v e l of s e nso r y b l o c k, 3. D e g r e e of m o t or b l o c k a d e ( U s i ng Mod i f i e d B r o m a g e s c a l e 4. Du ra ti on of m o t or b l o c k a de. 5. Du ra ti on of s e nso r y a n a l g e s i a. 6. Haemodynamic changes heart rate, blood pressure, respiratory rate. 7. S ide effects if any . R ESULTS : 0.75% R op i v aca i ne h a s a sho r t e r du ra ti on of m o t o r b l o c k

  13. Histomorphological assessment of a rat model of skeletal muscle injury induced by local injection of bupivacaine%局部注射布比卡因建立大鼠骨骼肌损伤模型的组织形态学评价

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    陈玉佩; 刘通; 邹德辉; 张莉; 毛颖秋; 霍则军

    2016-01-01

    背景:布比卡因神经毒性、心脏毒性的报道屡见不鲜,而关于布比卡因所致肌肉毒性的文章却不多。目的:建立并评价局部肌肉注射布比卡因不同时间点大鼠多裂肌组织形态和超微结构变化。  方法:选用体质量280-320 g 的雄性 SD 大鼠54只随机分为空白组(18只)、模型组(18只)、模型对照组(18只),每组随机分为4,7,14 d 3个亚组,每个亚组6只大鼠。麻醉后于双侧 L4-5多裂肌注射0.5%布比卡因溶液,通过光学显微镜和透射电子显微镜观察分析造模后4,7,14 d 多裂肌形态及超微结构改变。  结果与结论:①肌肉注射0.5%布比卡因可导致大鼠骨骼肌损伤。②苏木精-伊红染色可见局部多裂肌纤维出现坏死、炎细胞浸润、少量巨噬细胞等。③透射电镜下可见肌原纤维以及各带、线排列紊乱,结构崩解,甚至消失;线粒体结构异常,嵴减少、消失等;模型7,14 d 组可见多裂肌增生、修复等变化。④模型组骨骼肌超微结构变化分值明显高于空白组和模型对照组(P OBJECTIVE: To establish and evaluate local intramuscular injection of bupivacaine on the changes in histomorphology and ultrastructure of rat multifidus muscle at various time points. METHODS: A total of 54 male Sprague-Dawley rats weighing 280-320 g were randomly divided into black group (n=18), model group (n=18) and model control group (n=18). Each group was then equal y subdivided into three subgroups according to time points (4, 7 and 14 days) (n=6). Both sides of multifidus muscle of the rats (L4 and L5) were injected with 0.5% bupivacaine. The morphological and ultrastructural changes of multifidus muscle were observed and analyzed with light microscope and transmission electron microscope at 4, 7 and 14 days after model establishment. RESULTS AND CONCLUSION: (1) A single intramuscular injection of 0.5% bupivacaine induced muscular damage. (2

  14. Baixa dose de bupivacaína isobárica, hiperbárica ou hipobárica para raquianestesia unilateral Baja dosis de bupivacaína isobara, hiperbara o hipobara para anestesia raquidea unilateral Low dose isobaric, hyperbaric, or hypobaric bupivacaine for unilateral spinal anesthesia

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    Luiz Eduardo Imbelloni

    2007-06-01

    outpatient basis surgeries. Low dose, slow speed of administration, and the lateral positioning make easier the unilateral distribution in spinal anesthesia. Isobaric, hyperbaric, and hypobaric solutions of bupivacaine were compared in the unilateral spinal anesthesia in patients undergoing outpatient basis orthopedic surgeries. METHODS: One hundred and fifty patients were randomly divided in three groups to receive 5 mg of 0.5% isobaric bupivacaine (Iso Group, 5 mg of 0.5% hyperbaric bupivacaine (Hyper Group, or 5 mg of 0.15% hypobaric bupivacaine (Hypo Group. The solutions were administered in the L3-L4 space with the patient in the lateral decubitus and remaining in this position for 20 minutes. Sensitive anesthesia was evaluated by the pin prick test. Motor blockade was determined by the modified Bromage scale. Both blockades were compared with the opposite side and among themselves. RESULTS: There was a significant difference between the side of the surgery and the opposite side in all three groups at 20 minutes, but the frequency of unilateral spinal anesthesia was greater with the hyperbaric and hypobaric solutions. Sensitive and motor blockades were observed in 14 patients in the Iso Group, 38 patients in the Hyper Group, and 40 patients in the Hypo Group. Patients did not develop any hemodynamic changes. Postpuncture headache and transitory neurological symptoms were not observed. CONCLUSIONS: Spinal anesthesia with hypobaric and hyperbaric solutions present a higher frequency of unilateral anesthesia. After 20 minutes, isobaric bupivacaine mobilized into cerebrospinal fluid (CSF resulted in unilateral spinal anesthesia in only 28% of the patients.

  15. Analgesia preemptiva com S(+cetamina e bupivacaína peridural em histerectomia abdominal Analgesia preemptiva con S(+cetamina y bupivacaína peridural en histerectomía abdominal Preemptive analgesia with epidural bupivacaine and S(+ketamine in abdominal hysterectomy

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    Ferdinand Edson de Castro

    2005-02-01

    fue posible demostrar efecto preemptivo con la utilización peridural de S(+cetamina y bupivacaína en las dosis utilizadas en histerectomía abdominal.BACKGROUND AND OBJECTIVES: This study investigates the ability of epidural S(+ketamine, NMDA receptor antagonist, plus local anesthetic (bupivacaine injection to promote preemptive analgesia in patients undergoing total abdominal hysterectomy, when this solution is administered before surgical incision. METHODS: Participated in this prospective double-blind study 30 patients were randomly assigned in two equal groups. Epidural injection and catheter insertion were performed at L1-L2 interspace. Group 1 (G1 patients received 17 mL bupivacaine 0.25% plus 3 mL S(+ketamine (30 mg, 30 min before surgical incision, followed by 20 mL saline 30 min after incision. Group 2 (G2 patients received 20 mL saline 30 min before surgical incision, followed by 17 mL bupivacaine 0.25% plus 3 mL S(+ketamine (30 mg 30 min after incision. General anesthesia was induced with propofol, pancuronium, O2 and isoflurane. Postoperative analgesia consisted of epidural fentanyl plus bupivacaine bolus with 4h minimal interval. If necessary, IV dipyrone supplementation was administered. Patients were evaluated for analgesia by a verbal and numeric scale (at recovery and every six hours until 24 postoperative hours. Time to first analgesic request and total analgesic requirements were recorded. RESULTS: There were no significant differences between groups in time to first analgesic request, total analgesic consumption and numeric or verbal scale pain scores. CONCLUSIONS: This study failed to demonstrate a preemptive effect of epidural administration of bupivacaine and S(+ketamine in the doses tested for abdominal hysterectomy.

  16. Baixas doses de bupivacaína a 0,5% isobárica para raquianestesia unilateral Bajas dosis de bupivacaína a 0,5% isobárica para raquianestesia unilateral Low isobaric 0.5% bupivacaine doses for unilateral spinal anesthesia

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    Luiz Eduardo Imbelloni

    2004-06-01

    bupivacaína se moviliza dentro del LCR después de 20 minutos, resultando en un bloqueo unilateral en apenas 28% de los pacientes. La principal ventaja de la raquianestesia unilateral es la estabilidad hemodinámica y su rápida regresión, pudiendo ser una nueva opción para cirugía ambulatorial.BACKGROUND AND OBJECTIVES: Unilateral spinal anesthesia may be advantageous, especially in the outpatient setting. Low local anesthetic doses, slow spinal injection rate and the lateral position have been related to the easiness of inducing unilateral spinal anesthesia. This study aimed at investigating the possibility of inducing unilateral spinal anesthesia with isobaric 0.5% bupivacaine. METHODS: Spinal anesthesia with 1 mL isobaric 0.5% bupivacaine (5 mg was induced through 27G Quincke needle in 25 physical status ASA I and II patients undergoing orthopedic procedures. Dural puncture was performed with patients in lateral decubitus with the limb to be operated facing upwards. One mililiter of isobaric bupivacaine was injected in 30 seconds. Sensory and motor blocks were compared between the operated and the contralateral side. RESULTS: Motor and sensory blocks on operated and contralateral sides were significantly different in all studied moments. All patients presented surgical anesthesia in the operated limb. At 20 minutes, nine patients presented sensory block in the contralateral side; at 40 minutes they were 18 and at 60 minutes they were 17 patients. So, unilateral block was present in seven patients (28% and bilateral block was present in the remaining 18 patients (72%. No patient developed post-dural puncture headache. CONCLUSIONS: Isobaric bupivacaine (5 mg provides predominant unilateral block after 20 minutes in the lateral position. Isobaric bupivacaine moves in the CSF after 20 minutes resulting in just 28% unilateral blocks. Major advantages of unilateral spinal anesthesia are hemodynamic stability and short duration and it might be a new alternative for

  17. Estudo comparativo entre bupivacaína racêmica (S50-R50 a 0,125% e bupivacaína em excesso enantiomérico de 50% (S75-R25 a 0,125% e 0,25% em anestesia peridural para analgesia de parto Estudio comparativo entre bupivacaina racémica (S50-R50 a 0,125% y bupivacaina en exceso enantiomérico de 50% (S75-R25 a 0,125% y 0,25% en anestesia peridural para analgesia de parto A comparative study of 0.125% racemic bupivacaine (S50-R50 and 0.125% and 0.25% 50% enantiomeric excess bupivacaine (S75-R25 in epidural anesthesia for labor analgesia

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    Nádia Maria da Conceição Duarte

    2008-02-01

    estudio fue comparar la analgesia y el bloqueo motor entre la Bupivacaina (S50-R50 a 0,125% y la Bupivacaina en exceso enantiomérico de 50% (S75-R25 a 0,125% e 0,25% en peridural continua para analgesia de parto. MÉTODO: Se realizó un ensayo clínico doblemente encubierto, con distribución aleatoria de 75 participantes en trabajo de parto, distribuidas en tres grupos: GI - Bupivacaina (S50-R50 a 0,125%, GII - Bupivacaina (S75-R25 a 0,125% y GIII - Bupivacaina (S75-R25 a 0,25%. La inclusión en el estudio fue hecha después de la firma del Consentimiento Libre y Aclarado. RESULTADOS: No se encontraron diferencias estadísticas significativas en cuanto a la latencia de la analgesia, nivel sensorial del bloqueo, volumen de anestésico local, duración del trabajo de parto y de la analgesia, frecuencia de parto instrumental, puntuaciones de Apgar o pH del cordón umbilical. El intervalo para la primera dosis rescate fue mayor y los puntajes de dolor en 45 minutos fueron menores en el grupo Bupivacaina (S75-R25 a 0,25%. La intensidad del bloqueo motor fue mayor en el grupo Bupivacaina (S50-R50 a 0,125%. CONCLUSIONES: La Bupivacaina (S75-R25 determinó un bloqueo motor menos intenso, incluso cuando se utilizó en mayor concentración (0,25%, resultando en una mejor calidad de analgesia, sin interferir en la evolución del trabajo de parto o en la vitalidad de los recién nacidos.BACKGROUND AND OBJECTIVES: Continuous epidural block is used for relief of labor pain and it is associated with a low incidence of complications. Studies with the levorotatory isomer of local anesthetics demonstrated that they are safer regarding the cardiotoxicity. The objective of this study was to compare analgesia and motor blockade of 0.125% bupivacaine (S50-R50 and 0.125% and 0.25% 50% enantiomeric excess bupivacaine (S75-R25 in continuous epidural block for labor analgesia. METHODS: Seventy-five patients in labor participated in this randomized, double-blind study after signing an informed

  18. Bupivacaína racêmica a 0,5% e mistura com excesso enantiomérico de 50% (S75-R25 a 0,5% no bloqueio do plexo braquial para cirurgia ortopédica. Estudo comparativo Bupivacaína racémica a 0,5% y mezcla con exceso enantiomérico del 50% (S75-R25 a 0,5% en el bloqueo del plexo braquial para cirugía ortopédica. Estudio comparativo Comparative study of 0.5% racemic bupivacaine versus enantiomeric mixture (S75-R25 of 0.5% bupivacaine in brachial plexus block for orthopedic surgery

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    Roberto Tsuneo Cervato Sato

    2005-04-01

    segura y efectiva para el bloqueo del plexo braquial para cirugía ortopédica de miembro superior.BACKGROUND AND OBJECTIVES: Several studies were performed with bupivacaine isomers in the attempt to find a safer drug than racemic bupivacaine. This study aimed at evaluating the efficacy of 0.5% bupivacaine enantiomeric mixture (MEE50% as compared to 0.5% racemic bupivacaine in brachial plexus block for upper limb orthopedic surgery. METHODS: Participated of this randomized double-blind study 40 patients aged 18 to 90 years, physical status ASA I and II, submitted to upper limb orthopedic surgeries, who were divided in two groups: Group R received 0.5% racemic bupivacaine; and Group L received 0.5% enantiomeric mixture (S75-R25 of bupivacaine both with 1:200,000 epinephrine, in a volume of 0.6 mL.kg-1 (3 mg.kg-1, limited to 40 mL. Motor and/or sensory characteristics of each nerve involved (musculocutaneous, radial, median, ulnar and medial cutaneous nerve of forearm, as well as the incidence of side effects were evaluated. RESULTS: There were no statistical differences in demographics. Hemodynamic parameters were similar between groups but systolic pressure was higher for Group R. There were no statistically significant differences in time to reach the greatest intensity of sensory and motor blocks. With one exception, the onset of motor block within the muscles innervated by the ulnar nerve was longer for Group L (10.75 versus 14.25 minutes. CONCLUSIONS: There were adequate sensory and motor blocks in both groups, with few side effects, suggesting that the 0.5% enantiomeric mixture (S75-R25 of bupivacaine with epinephrine is safe and effective for brachial plexus block of upper limb orthopedic surgeries.

  19. Effect of thoracic epidural anesthesia with bupivacaine on arterial oxygenation during one-lung ventilation%食管癌术中硬膜外阻滞对单肺通气期间动脉氧合的影响∗

    Institute of Scientific and Technical Information of China (English)

    蒋大明; 王丽君; 顾连兵

    2014-01-01

    目的:探讨食管癌手术采取全麻复合硬膜外阻滞麻醉时对单肺通气( OLV)期间动脉氧合的影响。方法选择60例行经左胸食管癌根治术患者( ASAIII级),随机分为静脉全麻复合硬膜外阻滞麻醉组( A组,30例)和仅静脉全麻组( B组,30例)。两组患者分别于OLV前( T1)、OLV 15min( T2)、OLV 30min( T3)抽取桡动脉血和混合静脉血行血气分析,计算通气/血流比(Qs/Qt)值。结果在T2和T3时,A组氧分压(PaO2)分别为(219�3±48�2)mmHg和(174�7±37�6)mmHg,显著低于B组的(268�1±81�2)mmHg和(221�6±87�0)mmHg。在OLV期间,A组的Qs/Qt显著高于B组(P<0�05),各时间点A组血压均显著低于B组( P<0�05)。结论全麻复合硬膜外阻滞麻醉时会引起食管癌患者术中血压下降,而且会引起OLV期间肺内分流的增加和氧分压的降低。%Objective To study the effects of thoracic epidural anesthesia(TEA) with bupivacaine on oxygenation, shunt fraction during one-lung ventilation( OLV) . Methods Sixty patients who had prolonged periods of OLV for elective thoracic surgery for esophageal cancer were randomized into two groups. Thirty patients ( group A) were anesthetized with propofol/atracurium/epidural thoracic bupivacaine 0�5%. In another 30 patients ( group B) , fentanyl/propofol/atracurium anesthesia was used. A double-lumen en-dotracheal tube was inserted, and mechanical ventilation with 100% oxygen was used during the entire study. Arterial and venous blood gases were recorded before surgery in a lateral position with two-lung ventilation, 15 and 30 min after OLV ( OLV+15 and OLV+30, respectively) in all patients. PaO2, venous central oxygen tension, arterial and central venous oxygen saturation, venous admixture per-centage (Qs/Qt) were measured. Results The mean values for PaO2 during OLV in the group A after 15min with (219�3±48�2)mm-Hg and 30min with

  20. Evaluation of two regional anesthetic methods on the front limb of dogs using hyperbaric bupivacaine Avaliação de dois métodos de bloqueios anestésicos regionais no membro anterior em cães usando bupivacaína hiperbárica

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    Gustavo Guerino Macedo

    2010-06-01

    Full Text Available PURPOSE: To evaluate the effects of bupivacaine 0.5 and 0.25% in intravenous regional anesthesia (IVRA and brachial plexus block (BPB, respectively, on anesthesia, motor block and cardiovascular parameters in dogs. METHODS: Fourteen healthy adult dogs averaging 10 kilograms (kg of body weight. Animals were randomly assigned to receive one of the two treatments IVRA (n=7 or BPB (n=7. All the animals were sedated with acepromazine (0.1 mg/kg intramuscular. To execute the BPB was used an electrical nerve stimulation. Anesthesia, motor block, sedation, cardiovascular and respiratory effects were measured as effect of the treatment. RESULTS: BPA showed superior efficiency and duration of anesthesia (BPB - 456 ± 94 minutes vs IVRA - 138 ± 44 as well as motor block. There only physiologic parameter which change were the systolic pressure in BPB and respiratory rate for both treatments. CONCLUSION: In dogs the 0.25 % hyperbaric bupivacaine in BPB produces a front limb anesthesia about three times more than the 0.5 % in IVRA, with ptosis of the limb blocked and little interference in the cardiovascular system but with decrease in respiratory rate.OBJETIVO: Avaliar os efeitos da bupivacaína 0,5 e 0,25 % na anestesia regional endovenosa (IVRA e no bloqueio do plexo braquial (BPB respectivamente, na anestesia, bloqueio motor e parâmetros cardiovasculares em cães. MÉTODOS: Foram utilizados 14 cães sadios adultos pesando em média 10 kilos. Animais foram aleatoriamente designados a um de dois tratamentos IVRA (n = 7 ou BPB (n = 7. Todos os animais foram sedados com acepromazina (0,1 mg/kg intramuscular. Para realizar o BPB foi usado um estimulador elétrico nervoso. Anestesia, bloqueio motor, sedação, efeitos cardiovascular e respiratório foram mensurados como efeitos dos respectivos bloqueios. RESULTADOS: O bloqueio BPB demonstrou eficiência superior e maior duração da anestesia (BPB - 456 ± 94 minutos vs IVRA - 138 ± 44 minutos bem como maior

  1. Efeitos da associação da clonidina à bupivacaína hiperbárica na anestesia subaracnóidea alta Efectos de la asociación de la clonidina a la bupivacaína hiperbárica en la anestesia subaracnoidea alta Effects of clonidine associated to hyperbaric bupivacaine during high-level spinal anesthesia

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    José Reinaldo Cerqueira Braz

    2003-09-01

    sinergismo entre dosis diferentes de clonidina, de 45 y 75 µg, y bupivacaína hiperbárica en las características y en los efectos hemodinámicos del bloqueo subaracnoideo alto (T4. MÉTODO: En estudio aleatorio y duplamente encubierto, fueron evaluados 60 pacientes estado físico ASA I, sometidos a cirugía del abdomen inferior y miembros inferiores. Los pacientes fueron sometidos a anestesia subaracnoidea, con bupivacaína hiperbárica a 0,5% (17,5 mg - 3,5 ml más la asociación de las siguientes drogas: grupo Control (n = 20 - solución fisiológica (0,5 ml; grupo Clon 45 (n = 20 - clonidina, en la dosis de 45 µg (0,3 ml, asociada a la solución fisiológica (0,2 ml; grupo Clon 75 (n = 20 - clonidina, en la dosis de 75 µg (0,5 ml. La cirugía solamente fue realizada cuando el nivel del dermátomo atingido por el bloqueo analgésico fue de T4. RESULTADOS: A latencia de los bloqueos analgésico y motor de la anestesia subaracnóidea no discordó significativamente entre los grupos (p > 0,05. Ambas dosis de clonidina prolongaron, de manera significativa, la duración del bloqueo analgésico en T8 y del bloqueo motor grado 3 (determinado por la escala modificada de Bromage (p 0,05. Ambas dosis de clonidina prolongaron la analgesia pos-operatoria (intervalo de tiempo decorrido entre el bloqueo subaracnoideo y la primera solicitación de analgésico por el paciente en el pos-operatorio (p BACKGROUND AND OBJECTIVES: Published data suggest that clonidine, an alpha2-adrenergic agonist, in association with bupivacaine, may increase the incidence of intraoperative hypotension and bradycardia during high-level spinal anesthesia. This study aimed at determining the synergistic potential of two clonidine doses (45 and 75 µg and hyperbaric bupivacaine on characteristics and hemodynamic effects of high-level (T4 spinal anesthesia. METHODS: Participated in this randomized double-blind study, 60 ASA I patients scheduled for lower abdominal and limb surgery. Spinal anesthesia was

  2. Efeito da lavagem peritoneal com bupivacaína na sobrevida de ratos com peritonite fecal Efecto del lavado peritoneal con bupivacaína en la sobrevida de ratones con peritonitis fecal Effects of peritoneal lavage with bupivacaine on survival of mice with fecal peritonitis

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    Marcos Célio Brocco

    2008-10-01

    abdominal con 3 mL de solución fisiológica a 0,9% y secado (n = 12; 4 - Lavado de la cavidad abdominal con 8 mg.kg-1 (± 0,5 mL de bupivacaína 0,5%, adicionada a 2,5 mL de solución fisiológica a 0,9% y secado (n = 12. Los animales que murieron fueron llevados a necropsia y el horario del óbito se anotó. Los animales sobrevivientes se sacrificaron al 11º día del postoperatorio y se realizó la necropsia. RESULTADOS: Hubo un 100% de mortalidad en los animales del Grupo 1 en 52 horas, 100% en los animales del Grupo 2, en 126 horas y un 50% en los animales del Grupo 3 en 50 horas. Los animales del Grupo 4 sobrevivieron. La sobrevida, al 11° día del postoperatorio, fue mayor en los grupos 3 y 4 con relación a los grupos 1 y 2 (p BACKGROUND AND OBJECTIVES: Based on the knowledge of the anti-inflammatory and anti-bacterial actions of local anesthetics (LA, the objective of this study was to determine the effects of peritoneal lavage with bupivacaine on survival of mice with fecal peritonitis. METHODS: Forty-eight Wistar mice, weighing between 300 and 330 g (311.45 ± 9.67 g, undergoing laparotomy 6 hours after induction of peritonitis were randomly divided in 4 groups: 1 - Control, without treatment (n = 12; 2 - Drying of the abdominal cavity (n = 12; 3 - Lavage with 3 mL NS and posterior drying of the abdominal cavity (n = 12; and 4 - Lavage with 8 mg.kg-1 (± 0.5 mL of 0.5% bupivacaine added to 2.5 mL of NS followed by drying out of the abdominal cavity (n = 12. Animals that died underwent necropsy and the time of death was recorded. Surviving animals were killed on the 11th postoperative day and underwent necropsy. RESULTS: Group 1 presented a 100% mortality rate in 52 hours, 100% mortality rate in Group 2 in 126 hours, and Group 3 presented a 50% mortality rate in 50 hours. Animals in Group 4 survived. Survival on the 11th day was greater in groups 3 and 4 than in Groups 1 and 2 (p < 0.001 and greater in Group 4 than in Group 3 (p < 0.01. CONCLUSIONS: Peritoneal

  3. Estudo comparativo da analgesia entre bupivacaína e morfina intra-articular em osteoartrite de joelho Estudio comparativo de la analgesia entre bupivacaína y morfina intra-articular en osteoartritis de la rodilla Intra-articular bupivacaine and morphine for knee osteoarthritis analgesia. Comparative study

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    Miriam C B Gazi

    2005-10-01

    recibieron 1 mg (1 mL de morfina diluida en 9 mL de solución fisiológica a 0,9% y los del G2 (n = 21 25 mg (10 mL de bupivacaína a 0,25% sin vasoconstrictor, por vía intra-articular. La intensidad del dolor fue evaluada por la escala numérica y verbal en los tiempos 0, 30, 60 minutos y 7 días, en reposo y en movimiento. Fueron evaluados la necesidad de complementación analgésica con paracetamol (500 mg, la dosis total de analgésico utilizado, la duración de la analgesia y la calidad de la analgesia (por el paciente. RESULTADOS: De los 39 pacientes estudiados, 31 completaron el estudio. No hubo diferencia significativa de la intensidad del dolor en reposo y en movimiento entre los dos grupos en los tiempos estudiados. No hubo diferencia entre los dos grupos en el tiempo entre la administración de la solución y la necesidad de complementación analgésica. La dosis media del paracetamol utilizada en el primer día de la semana fue de 796 mg del G1 y de 950 mg en el G2; la complementación en la semana fue de 3578 mg G1 y 5333 mg en el G2. CONCLUSIONES: El efecto analgésico de 1 mg de morfina y de 25 mg de bupivacaína a 0,25% sin vasoconstrictor intra-articular fueron semejantes.BACKGROUND AND OBJECTIVES: Osteoarthritis is the most common joint disease among elderly people. This study aimed at comparing the analgesic effects of intra-articular bupivacaine and morphine in knee osteoarthritis patients. METHODS: Thirty-nine patients were included in this randomized double-blind study and divided in two groups: G1 (n = 18 patients were given intra-articular 1 mg (1 mL morphine diluted in 9 mL of 0.9% saline, while G2 (n = 21 received intra-articular 25 mg (10 mL of 0.25% plain bupivacaine. Pain intensity was evaluated by numerical and verbal scale at 0, 30, 60 minutes and 7 days at rest and in movement. Evaluated parameters were analgesic supplementation requirement with paracetamol (500 mg, total analgesic dose throughout the study, analgesia duration and quality

  4. Estudo comparativo entre bupivacaína a 0,5%, mistura enantiomérica de bupivacaína (S75-R25 a 0,5% e ropivacaína a 0,75% associadas ao fentanil em anestesia peridural para cesarianas Estudio comparativo entre bupivacaína a 0,5%, mezcla enantiomérica de bupivacaína (S75-R25 a 0,5% y ropivacaína a 0,75% asociadas al fentanil en anestesia peridural para cesáreas Comparative study between 0.5% bupivacaine, 0.5% enantiomeric mixture of bupivacaine (S75-R25 and 0.75% ropivacaine, all associated to fentanyl, for epidural cesarean section anesthesia

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    Carlos Alberto Figueiredo Côrtes

    2003-04-01

    /fetal repercussions of 0.5% bupivacaine, enantiomeric 0.5% bupivacaine (S75-R25 and 0.75% ropivacaine, all associated to fentanyl, in epidural cesarean section anesthesia. METHODS: Participated in this study 90 full-term pregnant women, physical status ASA I, submitted to elective cesarean section under epidural anesthesia, who were divided into tree groups: group I - 23 ml racemic 0.5% bupivacaine with epinephrine; Group II -23 ml enantiomeric 0.5% bupivacaine (S75-R25 with epinephrine; Group III - 23 ml of 0.75% ropivacaine. Fentanyl (2 ml was associated to local anesthetics in all groups. The following parameters were evaluated: onset, analgesia duration, sensory and motor block degree, time to hysterotomy and delivery, quality of muscle relaxation and anesthesia, maternal hemodynamic and respiratory changes, newborn vitality (evaluated through Apgar score and cord-blood gases analysis, and side-effects. RESULTS: There were no differences among groups, except for anesthesia quality. In groups with predominant levo-enantiomer fraction were clinically worse with the need for anesthetic complementation in three cases. Analgesia duration was longer in the ropivacaine group. CONCLUSIONS: Enantiomeric mixture 0.5% bupivacaine (S75-R25 and 0.75% ropivacaine for epidural anesthesia have provided as good conditions as racemic 0.5% bupivacaine for the surgical act. Newborn repercussions have shown that all solutions were equally safe.

  5. Clinical observation on different doses of isobaric bupivacaine for caesarean delivery in black African parturients with pregnancy-induced hypertension%不同剂量布比卡因用于非洲黑人妊娠高血压综合征产妇剖宫产的临床观察

    Institute of Scientific and Technical Information of China (English)

    邵新峰

    2015-01-01

    bupivacaine combined with fentanly for caesarean delivery in black African parturient with pregnancy-induced hypertension and explore the optimal dosage of local anesthetic.Methods Seventy-five black parturients with mild or severe preeclampsia,ASA (Ⅱ-Ⅲ) grade,who were scheduled for caesarean delivery,were completely randomized into three groups (25 in each group) according to different doses of 0.5% isobaric bupivacaine:group A(8 mg),group B(10 mg) and group C(12 mg).The heart rates (HR),systolic pressures (SBP),diastolic pressures (DBP) and pulse oxygen saturation (SpO2) at the time points of 5 min before spinal anaesthesia and post-spinal anaesthesia (5,10,15,30 min) were respectively recorded.The anesthetic effects,sensory blocked level,side effects such as hypotension and nausea as well as vomiting,administration of anesthetic in epidural space,dosage of ephedrine,Apgar score of neonate at 1 min and 5 min were also recorded.Results After spinal anaesthesia,the SBP and DBP decreased significantly and reached a nadir within 5 min in three groups,the blood pressure in group C decreased more significantly than group A and B [A:SBP (142±12) mmHg(1 mmHg=0.133 kPa),DBP(96±1 1) mmHg,B:SBP (139±12) mmHg,DBP (95±12) mmHg,C:SBP (125±16) mmHg,DBP (88±12) mmHg](P<0.05).The cases of sensory blocked level in T6 were more in group B and C than group A (A:17 cases,B:23 cases,C:24 cases)(P<0.05) and the cases of sensory blocked level in T4 were the most in group C (A:2 cases,B:3 cases,C:13 cases)(P<0.05).The anesthetic effects was better in group B and C than group A (A:64% excellence,B:88% excellence,C:100% excellence) (P<0.05).The incidence of hypotension (A:24%,B:32%,C:88%) and nausea as well as vomiting (A:6%,B:7%,C:15%) and were highest in group C (P<0.05).In group C more ephedrine was used compared to other two groups [A:(10±5) mg,B:(14±5) mg,C:(53±11) mg,P<0.05].Cases of anesthetics administrated in epidural space was more in group A

  6. Bloqueio do plexo braquial por via supraclavicular: estudo clínico comparativo entre bupivacaína e levobupivacaína Bloqueo del plexo braquial por vía supraclavicular: estudio clínico comparativo entre bupivacaína y levobupivacaína Supraclavicular brachial plexus block: a comparative clinical study between bupivacaine and levobupivacaine

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    José Ricardo Pinotti Pedro

    2009-12-01

    anesthetics. Studies on bupivacaine isomers have shown reduced cardiovascular toxicity of its levorotatory form (levobupivacaine. However, the anesthetic efficacy (sensorial and motor blockades of levobupivacaine in neuroaxis blocks has been debated. The objective of this study was to demonstrate the anesthetic efficacy of levobupivacaine in brachial plexus block, using the perivascular subclavian approach, by comparing it to racemic bupivacaine. METHODS: Fifty adult patients of both genders, ASA I and II, underwent subclavian perivascular brachial plexus block, with the aid of a peripheral neurostimulator, for orthopedic surgeries of the upper limbs. Patients were randomly divided into two groups: G BUPI - racemic bupivacaine, and G LEVO - levobupivacaine, and they received 30 mL of the 0.5% solution. Sensorial blockade was evaluated by pinprick stimulation from C5 to C8 metameres; and the motor blockade was assessed 1, 2, 5, 10, 15, 20, 25, and 30 minutes after the administration of the local anesthetic or until blockade of fingers, hand, forearm, and arm movements was observed. RESULTS: Statistical differences in latency, failure rate, and degree of the motor blockade, and failure of the sensorial blockade between both groups were not observed, but the latency of the sensorial blockade in all metameres analyzed showed statistically significant differences. Adverse events inherent to the administration of local anesthetics were not observed. CONCLUSIONS: The anesthetic efficacy of levobupivacaine in brachial plexus block was similar to that of the racemic solution commonly used.

  7. Estudo comparativo entre concentrações de bupivacaína a 0,125% e a 0,25% associada ao fentanil para analgesia de parto por via peridural Estudio comparativo entre concentraciones de bupivacaína a 0,125% y a 0,25% asociada al fentanil para analgesia de parto por vía peridural Comparison between 0.125% and 0.25% bupivacaine associated to fentanyl for epidural labor analgesia

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    Marcos Emanuel Wortmann Gomes

    2004-08-01

    (0,25% [n = 23] ó 0,125% [n = 28]. Para la mensuración de la analgesia, fue utilizada la escala numérica de dolor, y para la evaluación del bloqueo motor, la escala de Bromage. Para la comparación de las medias, fue utilizado el teste t de Student, y, para la comparación de las proporciones, el teste Qui-cuadrado, con p BACKGROUND AND OBJECTIVES: Epidural analgesia aims at decreasing or even abolishing maternal suffering during labor. It is considered a safe and effective method for pain relief. This study aimed at comparing two bupivacaine concentrations (0.25% and 0.125% associated to fentanyl in epidural labor analgesia to determine its efficacy on pain relief and its effect on motor block. We have also observed the influence of these two concentrations on labor duration, fetal outcome and maternal satisfaction. METHODS: Participated in this prospective and double blind study 51 primiparous women who were randomized to receive one out of two bupivacaine concentrations for epidural labor analgesia (0.25% [n = 23] or 0.125% [n = 28]. Analgesia was measured using a numeric pain scale, and motor block was verified using Bromage scale. Means were compared using Student's t test, while proportions were compared using Qui-square test, with p < 0.05. RESULTS: There has been no statistical difference in pain, degree of motor block and fetal outcome between groups. Cesarean delivery rate was statistically higher in the group receiving 0.25% bupivacaine (p < 0.05. Lower concentration group patients were more satisfied with the procedure (p < 0.01. CONCLUSIONS: The association of fentanyl and 0.125% bupivacaine proved to be more beneficial as compared to 0.25% concentration. With this dose, there has been a lower incidence of adverse effects without compromising analgesia, and yet a higher rate of maternal satisfaction.

  8. Analgesia postoperatoria en la queiloplastia del lactante. Estudio comparativo: bloqueo infraorbitario intraoral bilateral con bupivacaína 0,25% con adrenalina vs. analgesia intravenosa con tramadol Postoperative analgesia for the management of chieloplasty in the breast-fed baby. Comparative study: bilateral intraoral blockade of the infraorbitary nerve with bupivacaine 0.25% plus adrenaline versus intravenous analgesia with tramadol

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    J. A. Delgado

    2005-05-01

    ó la aparición de cualquier complicación o efecto adverso. Los datos se analizaron mediante t Student y test χ². Resultados: No existieron diferencias en cuanto a las características demográficas. La duración de la analgesia fue mayor en el grupo A (7,3 ± 5,1 h que en el grupo B (2,8 ± 2,2 h (p Objective: To compare the effectiveness and length of bilateral intraoral blockade of the infraorbitary nerve versus standard intravenous analgesia with tramadol for the management of postoperative pain in breast-fed infants undergoing chieloplasty due to harelip. Material and methods: After conducting an adequate pre-anesthetic assessment and obtaining the informed consent from their parents, we performed a double-blind, randomized, controlled and randomized study in 25 ASA I infants with ages ranging from 3 to 10 months that were candidates to corrective harelip surgery (chieloplasty. All of them were pretreated half an hour before the surgical procedure with oral midazolan (0.5 mg.kg-1 and the same anesthesiologist performed the anesthetic technique and the nerve blockade in all the cases, this being inhaled induction with sevoflurane prior to venoclysis. General anesthesia was achieved with intravenous administration of atropine, fentanyl and rocuronium at the standard doses prior to endotracheal intubation and mechanical ventilation. Patients were randomized to one of the following groups: Group A (n = 12: 1-2 ml of bupivacaine 0.25% plus adrenaline was administered for bilateral blockade of the intraorbitary nerve and intravenous saline solution instead of intravenous analgesia with tramadol. Group B (n = 13: saline solution was administered for nerve blockade, instead of bupivacaine, and intravenous tramadol (1.5 mg.kg-1 was provided as postoperative analgesia. All of the patients underwent general anesthesia with sevoflurane and fentanyl "on-demand" according to standard parameters (blood pressure, heart rate, pupil size, etc.. During the first six hours at

  9. Dose de bupivacaína subaracnóidea necessária para cesariana é semelhante em mulheres obesas e com peso normal Las dosis de bupivacaína intratecal necesarias para cesáreas en mujeres obesas son similares a las usadas en mujeres con peso normal Dose requirement of intrathecal bupivacaine for cesarean delivery is similar in obese and normal weight women

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    Yung Lee

    2009-12-01

    mujeres obesas y con peso normal. MÉTODO: Evaluamos embarazadas con peso normal (IMC 30 kg.m-2, con feto único a término, sometidas a cesáreas de elección. Ese fue un estudio mono ciego y de ubicación secuencial, usando el método up-down (modificado por la regla de Narayana. Todas las pacientes recibieron bloqueo combinado raquiepidural con administración intratecal de dosis variables de bupivacaína hiperbárica a 0.75% más 10 µg de fentanil y 100 µg de morfina. La primera paciente recibió 9 mg de bupivacaína. La anestesia se suplementó cuando fue necesario, a través de un catéter epidural. El éxito de la anestesia, definido como bloqueo sensitivo hasta por lo menos T6, sin necesidad de anestesia suplementaria, fue el objetivo primario. La ED95 para un resultado satisfactorio fue determinada por un modelo logístico sin transformación logarítmica de las dosis. RESULTADOS: Veinte y cuarto embarazadas con peso normal y dieciséis embarazadas obesas participaron en este estudio. La ED95 estimada para todas las pacientes fue de 12,92 mg (IC 95%: 11,49 a 34,77. La ED95 estimada para las embarazadas con peso normal y las embarazadas obesas fue similar, 12,78 mg (IC 95%: 10,75 a + infinito y 11,86 mg (CI 95%: 11,31 a 15,61, respectivamente. CONCLUSIONES: Si la anestesia raquídea con inyección única es utilizada en cesáreas, las pacientes con peso normal y obesas deben recibir dosis parecidas de bupivacaína hiperbárica. A pesar de que no fuimos capaces de determinar con exactitud la ED95 en nuestro estudio, sí que podemos afirmar que es de por lo menos 11,49 mg.BACKGROUND AND OBJECTIVES: The effect of BMI on the spread of intrathecal bupivacaine is controversial. This study assessed the ED95 of intrathecal bupivacaine for elective cesarean delivery in obese and normal weight women. METHODS: We studied normal weight (BMI 30 kg.m-2 women with singleton term pregnancies undergoing elective cesarean delivery. The study was conducted as a single blinded, up

  10. Efeito da clonidina associada à bupivacaína a 0,5% hiperbárica na anestesia subaracnóidea Efecto de la clonidina asociada a la bupivacaína a 0,5% hiperbárica en la anestesia subaracnóidea Effects of combined clonidine and 0.5% hyperbaric bupivacaine on spinal anesthesia

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    Neuber Martins Fonseca

    2001-12-01

    los otros grupos. No hubo diferencia en relación a la sedación y a los parámetros hemodinámicos entre los grupos. El grupo I presentó analgesia prolongada en relación a los demás grupos, confirmado por la menor necesidad de analgésicos en función del tiempo. CONCLUSIONES: La clonidina no alteró la dispersión cefálica y los efectos hemodinámicos del bloqueo subaracnóideo con bupivacaína a 0,5% hiperbárica; sin embargo, fue efectiva en una mejor analgesia observada con cuatro horas después del bloqueo, bien como prolongó el tiempo de anestesia.BACKGROUND AND OBJECTIVES: Clonidine is an imidazolynic compound which exhibits partial alpha2-receptor agonist action, with anxiolytic and hypnotic properties. When spinally administered, it produces selective effects in pain modulation and may prolong surgical anesthesia and motor block. This study aimed at evaluating the effects of combined clonidine and 0.5% hyperbaric bupivacaine on spinal anesthesia. METHODS: Thirth ASA I or II patients off both genders, aged between 16 and 57 years and scheduled to undergo surgical inguinal hernia repair were randomly divided into three groups in this prospective double blind study. After monitoring, patients were sedated with 2 mg venous midazolam 10 minutes before surgery, followed by paramedian spinal puncture (L3-L4 in the left lateral position with a 25G Quincke needle. After CSF confirmation, 1 ml of one of the proposed solutions were injected with 15 mg hyperbaric bupivacaine: Group I - 150 µg clonidine; Group II - 75 µg clonidine + 0.5 ml bi-distilled water; and Group III - 1 ml bi-distilled water. The following parameters were evaluated: sensory block level at 5, 20 and 30 minutes, time for two metamers regression, sedation scores through a 0 to 3 scale, motor block by a modified Bromage’s scale, postoperative pain and analgesics requirement. RESULTS: Demographics and maximum sensory level (mode were similar for all groups. Anesthesia regression and muscle

  11. Sistemas de liberação controlada com bupivacaína racêmica (S50-R50 e mistura enantiomérica de bupivacaína (S75-R25: efeitos da complexação com ciclodextrinas no bloqueio do nervo ciático em camundongos Sistemas de liberación controlada con bupivacaína racémica (S50-R50 y mescla enantiomérica de bupivacaína (S75-R25: efectos de la complexación con ciclodextrinas en el bloqueo del nervio ciático en ratones Drug-delivery systems for racemic bupivacaine (S50-R50 and bupivacaine enantiomeric mixture (S75-R25: cyclodextrins complexation effects on sciatic nerve blockade in mice

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    Daniele Ribeiro de Araújo

    2005-06-01

    preparaciones como la mezcla enantiomérica de bupivacaína (S75-R25. Los sistemas de liberación controlada, conteniendo AL en carreadores como ciclodextrinas (CD, tienen como objetivo mejorar la eficacia anestésica y el índice terapéutico de esas drogas. Este estudio visó la preparación, caracterización y evaluación de la eficacia anestésica de los complejos de inclusión de la mezcla enantiomérica de la bupivacaína (S75-R25 y de la bupivacaína racémica (S50-R50 con hidroxipropilb-ciclodextrina (HPb-CD comparándolos con las preparaciones actualmente utilizadas en la clínica. MÉTODO: Los complejos de inclusión fueron preparados mezclándose cantidades apropiadas de HPb-CD y S50-R50 ó S75-R25 en las razones molares (1:1 y 1:2 y caracterizados por estudios de solubilidad de fases. Se determinaron las constantes de afinidad (K de cada AL por la HPb-CD. Los bloqueos motor y sensorial inducidos por las drogas libres y complejadas fueron evaluados en ratones, a través del bloqueo del nervio ciático. Para la realización de los experimentos, se utilizaron tres concentraciones de AL: 0,125; 0,25 y 0,5%. RESULTADOS: Los estudios de solubilidad indicaron la formación de complejos de inclusión de S50-R50 y S75-R25 con HPb-CD, con valores de constante de afinidad (K análogos para los dos anestésicos: 14,7 M-1 (S50-R50: HP-bCD y 14,3 M-1 (S75-R25: HP-bCD. Las pruebas en animales mostraron que la complejidad potenció el bloqueo nervioso diferencial inducido por los AL: i la duración del bloqueo motor inducido por S75-R25 fue análogo al del S50-R50, pero menos intenso (p BACKGROUND AND OBJECTIVES: Bupivacaine-induced side effects have led to the search for new local anesthetics (LA with similar potency and lower toxicity, such as bupivacaine enantiomeric mixture (S75-R25. Drug-delivery systems for LA in carriers, such as cyclodextrins (CD, have been developed to improve anesthetic potency and therapeutic index of those drugs. This study aimed at preparing

  12. Avaliação da bupivacaína hipobárica a 0,5% na raquianestesia Evaluación de la bupivacaína hipobárica a 0,5% en la anestesia espinal Evaluation of 0.5% hypobaric bupivacaine in spinal anesthesia

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    Marcelo Cursino Pinto dos Santos

    2007-08-01

    blocked and, consequently, with the level of the sympathetic blockade and reduction in blood pressure (BP, is one of those factors. The objective of this study was to evaluate the dispersion of 0.5% hypobaric bupivacaine prepared aseptically in a laboratory, with controlled and uniform density. METHODS: Thirty patients, physical status ASA I, II, or III, ages ranging from 18 to 60 years, without cardiovascular comorbidities, who underwent orthopedic surgery of the lower limb, were enrolled in this study. They were sedated with diazepam, 0.03 mg.kg-1, placed in lateral decubitus, with the side to be operated on top. A lumbar puncture in the L3-L4 space was performed with a 27G Quincke needle, and the direction of the bevel and rate of injection were standardized. The sensitive and motor levels (modified Bromage scale were evaluated. RESULTS: At the end of the surgery, two patients (6.6% did not present a level 3 motor blockade in the Bromage scale, and the sensitive blockade varied from T4 to T12. Only 12.9% of the patients presented a level of sensitive blockade considered "high" for the proposed surgery (above T6. The reduction in blood pressure was statistically significant, but it did not fall below 20% of basal levels and, therefore, was not clinically significant. The change in heart rate was non-significant. CONCLUSIONS: It was demonstrated that 0.5% hypobaric bupivacaine is a safe choice, with little hemodynamic repercussion in orthopedic surgeries of the lower limbs. The mean duration of the anesthesia, 250 minutes, allows the realization of minor and medium orthopedic procedures.

  13. Clonidine versus fentanyl as adjuvants to bupivacaine in peribulbar anesthesia

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    Maha M.I. Youssef

    2014-07-01

    Conclusion: The addition of either clonidine or fentanyl to the local anesthetic during peribulbar block results in a faster onset and longer duration of the block with a longer period of postoperative analgesia. The addition of clonidine was found to prolong the duration of the block more than fentanyl.

  14. Analgesia intra-articular com morfina, bupivacaína ou fentanil após operação de joelho por videoartroscopia Analgesia intra-articular con morfina, bupivacaína o fentanil después de operación de rodilla por videoartroscopia Intra-articular analgesia with morphine, bupivacaine or fentanyl after knee video-arthroscopy surgery

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    Rogério Helcias de Souza

    2002-09-01

    por vía intra-articular después de operación de rodilla por videoartroscopia. MÉTODO: Sesenta pacientes fueron divididos de forma aleatoria, en cuatro grupos: GI (n=15 - 10 ml de solución fisiológica; GII (n = 15 - 2 mg de morfina diluidos para 10 ml de solución fisiológica; GIII (n = 15 - 10 ml de bupivacaína a 0,25%; GIV (n = 15 - 100 µg de fentanil diluidos para 10 ml de solución fisiológica, inyectados al término de la operación. Todos los pacientes fueron sometidos a anestesia subaracnóidea con 15 mg de bupivacaína hiperbárica. La intensidad del dolor fue evaluada por la escala analógica visual (inmediatamente después del término de la operación y después 6, 12, 18 y 24 horas, bien como la necesidad de complemento analgésico (dipirona 1 g por vía venosa. Fueron anotados los posibles efectos colaterales. RESULTADOS: No hubo diferencia significativa en la intensidad del dolor entre los grupos, en la casi totalidad de los tiempos estudiados. Hubo diferencia estadística hasta seis horas, cuando el grupo fentanil presentó intensidad de dolor significativamente menor. El grupo morfina necesitó de mayor número de complementos con dipirona. Los efectos colaterales fueron mínimos, sin significación estadística. CONCLUSIONES: No hubo diferencia significativa entre la analgesia promovida por las soluciones estudiadas en la mayoría de los tiempos investigados.BACKGROUND AND OBJECTIVES: Methods to promote knee pain analgesia without impairing motor function have been widely researched. This study aimed at comparing intra-articular morphine, bupivacaine, and fentanyl analgesic effects (as compared to saline solution, after knee video-arthroscopy. METHODS: Participated in this study 60 patients who were randomly distributed in four groups: GI (n = 15 10 ml saline solution; GII (n = 15 2 mg morphine diluted in 10 ml saline solution; GIII (n = 15 10 ml of 0.25% bupivacaine; GIV (n = 15 100 µg fentanyl diluted in 10 ml saline solution, injected at

  15. Mistura com excesso enantiomérico de 50% (S75-R25 de bupivacaína complexada com ciclodextrinas e anestesia por via subaracnóidea em ratos Mezcla con exceso enantiomérico de 50% (S75-R25 de bupivacaina con complejo de ciclodextrinas y anestesia por vía subaracnoidea en ratones Complexation of 50% enantiomeric excess (S75-R25 bupivacaine with cyclodextrins and spinal block anesthesia in rats

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    Daniele Ribeiro de Araujo

    2006-10-01

    concentraciones de HP-beta-CD y la temperatura. Fueron determinadas las constantes de afinidad (K por la HP-beta-CD y los parámetros termodinámicos para los complejos. Los bloqueos motor y sensitivo fueron evaluados en ratones, a través de la administración subaracnoidea de las formulaciones en la concentración clínica de 0,5%. RESULTADOS: La formación de complejos de inclusión se observó a través del aumento de la solubilidad acuosa del AL bajo diferentes temperaturas y concentraciones de HP-beta-CD. Las pruebas in vivo mostraron que S50-R50HP-beta-CD y S75-R25HP-beta-CD redujeron la latencia (p BACKGROUND AND OBJECTIVES: In order to prolong the action and reduce systemic toxicity, formulations of local anesthetic (LA complexed with cyclodextrins (CD have been developed. This study determined the physical-chemical characterization and evaluated the effects of inclusion complexes of racemic bupivacaine (S50-R50 and 50% enantiomeric excess (S75-R25 bupivacaine with hydroxypropil-beta-cyclodextrin (HP-beta-CD in rats, and comparing them with the solutions currently used in the clinical practice. METHODS: Inclusion complexation of S75-R25 with HP-beta-CD (equimolar ratio 1:1 was characterized by phase-solubility studies varying the concentrations of HP-beta-CD and the temperature. Affinity constants (K for HP-beta-CD and the thermodynamic parameters for complexation were determined. Motor and sensitive anesthesias were evaluated through the subarachnoid administration of the formulations in the concentration of 0.5%. RESULTS: Inclusion complexation was observed through the increase in aqueous solubility of LA in different temperatures and concentrations of HP-beta-CD. The in vivo tests demonstrated that S50-R50HP-beta-CD and S75-R25HP-beta-CD reduced latency (p < 0.001 without changing the recovery time of the motor block, time for maximal effect, and total effect of the drugs. Besides, both formulations increased the intensity (1.5 times, p < 0.001 and prolonged the

  16. Estudo comparativo entre bupivacaína (S75-R25 e ropivacaína em bloqueio peridural para analgesia de parto Estudio comparativo entre la bupivacaína (S75-R25 y la ropivacaína en bloqueo epidural para analgesia de parto A comparative study between bupivacaine (S75-R25 and ropivacaine in spinal anesthesia for labor analgesia

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    Celso Schmalfuss Nogueira

    2010-10-01

    las repercusiones maternas y fetales con el uso de la bupivacaína (S75-R25 y de la ropivacaína cuando se usan para la analgesia de parto por bloqueo epidural. MÉTODOS: Realizamos un ensayo clínico prospectivo, encubierto y randomizado, con 49 pacientes gestantes a término, que presentaban bajo riesgo, con indicación de parto vaginal, y una edad entre los 15 y los 35 años, ASA I o II distribuidas en dos grupos: GI - bupivacaína (S75-R25 0,25%; GII - ropivacaína a 0,20%. RESULTADOS: Quedó evidenciada la diferencia estadísticamente significativa entre los dos grupos, 30 minutos después de la administración de la epidural, siendo que las puntuaciones de dolor fueron más elevadas en el grupo que utilizó la ropivacaína. No se encontraron diferencias estadísticas significativas en cuanto a la latencia de la analgesia, nivel sensorial del bloqueo, volumen del anestésico local, dosis de rescate, duración del parto y de la analgesia, frecuencia de parto instrumental, alteraciones hemodinámicas, puntuaciones de Apgar o pH del cordón umbilical e incidencia de eventos adversos. CONCLUSIONES: El uso de la bupivacaína (S75-R25 y la ropivacaína para la analgesia de parto, proporcionó buenas condiciones para la realización de la anestesia epidural con pequeñas incidencias de eventos adversosBACKGROUND AND OBJECTIVES: Spinal anesthesia is used for relief of pain during labor and it is associated with low indices of complications. Studies with levorotatory enantiomers of local anesthetics demonstrate higher safety due to the lower cardiotoxicity. The objective of this study was to evaluate the latency and duration of analgesia and maternal and fetal repercussions with bupivacaine (S75-R25 and ropivacaine in spinal anesthesia for labor analgesia. METHODS: A prospective, double-blind, randomized clinical assay was undertaken with 49 labouring parturients with low risk, with indication of vaginal delivery, ages 15 to 35 years, ASA I or II, divided into two groups

  17. A COMPARATIVE STUDY OF HEAMOD Y NAMIC PARAMETERS IN LSCS WITH INTRATHECAL FENTANYL - BUPIVACAINE COMBINATION AND BUPIVACAINE ALONE

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    Ramana Prasad; Grace Priyanka

    2015-01-01

    BACKGROUND: Caesarean section is considered as a major abdominal surgery, which requires profound blockade of spinal segments. Spinal anaesthesia is the most elegant approach providing profound anaesthesia and excellent operative conditions. Hypotension, the most clinically significant effect of spinal anaesthesia can occur rapidly and have a significant impact on neonatal outcome. There has been interest in using ana...

  18. Preparação, caracterização e avaliação in vitro de microesferas de bupivacaína em excesso enantiomérico de 50% (S75-R25 Preparación, caracterización y evaluación in vitro de microesferas de bupivacaina en exceso enantiomérico de 50% (S75-R25 Preparation, characterization and in vitro evaluation of 50% enantiomeric excess bupivacaine (S75-R25-loaded microspheres

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    Pedro Paulo Tanaka

    2008-02-01

    system to prolong the duration of action of local anesthetics. The objective of this study was the preparation, characterization and analysis of the in vitro release of 50% enantiomeric excess bupivacaine (S75-R25-loaded microspheres. METHODS: Microspheres were prepared using the copolymer of polylactide-co-glycolic acid by the spray-dryed method. RESULTS: Characterization of microspheres regarding their size and content were similar to the theoretical values. The in vitro release demonstrated a biphasic pattern. CONCLUSIONS: Manufacturing of 50% enantiomeric excess bupivacaine-loaded microspheres by the spray-dryed method with results similar to bupivacaine-loaded microspheres can be done.

  19. Comparação das alterações histológicas da medula espinal e neurológicas de cobaias após anestesia subaracnóidea com grandes volumes de bupivacaína racêmica, de mistura com excesso enantiomérico de 50% de bupivacaína (S75-R25 e de levobupivacaína Comparación de las alteraciones histológicas de la medula espinal y neurológicas de hámsteres después de la anestesia subaracnoidea con grandes volúmenes de bupivacaina racémica, de mezcla con exceso enantiomérico de 50% de bupivacaína (S75-R25 y de levobupivacaína Comparison of histologic spinal cord and neurologic changes in guinea pigs after subarachnoid block with large volumes of racemic bupivacaine, 50% enantiomeric excess bupivacaine (S75-R25, and levobupivacaine

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    Paulo de Oliveira Vasconcelos Filho

    2008-06-01

    central, si los comparamos con los inducidos por la bupivacaína racémica, sin embargo el efecto anestésico es menos intenso. Fue realizado un estudio experimental para comparar efectos adversos de grandes volúmenes de bupivacaína, de bupivacaína S75-R25 y de levobupivacaína cuando se inyectaron en el espacio subaracnoideo de los hámsteres. MÉTODO: Cuarenta hámsteres se dividieron en cuatro grupos. Anestesiados con O2 a 100% e isoflurano a 2%, con posterior punción en el espacio intervertebral L6-S1. En los animales del Grupo I se administraron 2 mL de solución fisiológica a 0,9%; en el Grupo II, 2 mL de bupivacaína 0,5%; en el Grupo III, 2 mL de bupivacaína S75-R25 0,5% y en el Grupo IV, 2 mL de levobupivacaína 0,5%. Después del despertar, en los momentos 0, 60, 120 y 180 minutos, fue realizado examen neurológico diariamente por una semana. Los animales fueron sacrificados y sometidos a la perfusión con paraformaldeido a 4%. Después de la fijación, la médula espinal fue aislada por disección y analizada histológicamente para evaluar el grado de lesión medular. RESULTADOS: Los hámsteres del grupo control no presentaron bloqueo nervioso. Los del Grupo II presentaron bloqueo sensitivo y motor por más de 180 minutos. En los Grupos III (S75-R25 y IV (levobupivacaína hubo un bloqueo motor y sensitivo al momento 0 minuto, sin embargo al momento 60 minutos el bloqueo motor era mínimo. En el examen histológico, el Grupo I no presentó alteraciones. En el Grupo II fueron encontradas alteraciones medulares intensas. En el Grupo III y IV las alteraciones medulares fueron poco intensas. CONCLUSIONES: La levobupivacaína en grandes volúmenes causó poco daño al sistema nervioso comparada a la bupivacaína. Entre la levobupivacaína y la bupivacaína S75-R25, no hubo diferencia estadística significativa.BACKGROUND AND OBJECTIVES: Levobupivacaine has less central nervous system side effects than racemic bupivacaine, but its anesthetic effect is not as

  20. Estudo comparativo entre bupivacaína a 0,25% e ropivacaína a 0,2% em anestesia peridural para cirurgia torácica Estudio comparativo entre bupivacaína a 0,25% y ropivacaína a 0,2% en anestesia peridural para cirugía de tórax Comparison between 0.25% bupivacaine and 0.2% ropivacaine in epidural anesthesia for thoracic surgery

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    Marcus Vinícius Martins Novaes

    2001-12-01

    ventilatorios de la anestesia peridural torácica con bupivacaína a 0,25% y ropivacaína a 0,2% asociada a anestesia general en pacientes sometidos a toracotomia. MÉTODO: Participaron de este estudio prospectivo, comparativo y aleatorio, cuarenta pacientes divididos en dos grupos de veinte. Cada grupo recibió un volumen de 10 ml de anestésico local, por vía peridural torácica. Grupo B (Bupivacaína 0,25% y el Grupo R (Ropivacaína 0,2%. El bloqueo peridural fue realizado con los pacientes en decúbito lateral, punción paramediana y catéter para inyección de los fármacos A seguir, todos los pacientes recibieron anestesia general con IOT. Fueron analizados parámetros hemodinámicos y ventilatorios en 9 momentos. RESULTADOS: La presión arterial sistólica fue menor en el momento 5 y la presión arterial diastólica en los momentos 1 y 5, ambas en el grupo B. La necesidad de efedrina para corregir hipotensión arterial fue de 8/20 en el grupo B, contra 6/20 en el grupo R. La presión de pico en las vías aéreas superiores fue siempre mas elevada en el grupo R y los valores de la CAM del isoflurano fueron mas elevados en los momentos 5 y 6 también en el Grupo R. CONCLUSIONES: La técnica combinada peridural torácica y anestesia general se mostró eficaz y segura en los pacientes sometidos a toracotomia. Cuando se utilizó bupivacaína, la diminución de la presión arterial fue mayor y la presión máxima en las vías aéreas fue menor de que cuando fue utilizada ropivacaína.BACKGROUND AND OBJECTIVES: Combined general/epidural anesthesia has been used for several surgical procedures. Little has been published in the literature about its use in thoracic surgery. This study aimed to evaluate hemodynamic and ventilatory effects of combined general/epidural anesthesia with 0.25% bupivacaine and 0.2% ropivacaine in patients submitted to thoracotomy METHODS: Participated in this prospective, comparative and randomized study 40 patients divided in two groups of 20. Each

  1. Estudo comparativo entre toxina botulínica e bupivacaína para infiltração de pontos-gatilho em síndrome miofascial crônica Estudio comparativo entre toxina botulínica y bupivacaína para infiltración de puntos-gatillo en síndrome miofascial crónica Comparative study between botulin toxin and bupivacaine for triggering-points infiltration in chronic myofascial syndrome

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    Eduardo Keiichi Unno

    2005-04-01

    dos grupos. Los pacientes del G1 (n = 10 recibieron 25U de toxina botulínica y los del G2 (n = 10, bupivacaína a 0,25%, de un a tres puntos-gatillo, siendo 0,5 mL por punto. Los pacientes fueron evaluados semanalmente, durante 8 semanas. Fueron asociados 35 mg de orfenadrina, y 300 mg de dipirona, a cada 8 horas, los pacientes fueron sometidos a estimulación eléctrica transcutánea, dos veces por semana, durante 1 hora por sesión. La intensidad del dolor fue evaluada a través de la escala numérica verbal y la calidad de la analgesia, por el paciente, en los momentos cero (antes de la inyección, y después de 30 minutos, 1, 2, 3, 4, 5, 6, 7 y 8 semanas. Los resultados fueron sometidos al análisis estadístico (Mann-Whitney y Exacto de Fisher. RESULTADOS: Después de 30 minutos de la aplicación y con 1 y 4 semanas, la intensidad del dolor en el G1 fue menor que en el G2. Después de 2, 3, 5, 7 y 8 semanas de la infiltración, no hubo diferencia significativa entre los grupos. La calidad de la analgesia fue considerada mejor por los pacientes del G1 que del G2, excepto después de 2 semanas. CONCLUSIONES: El efecto analgésico fue mejor con toxina botulínica (25U que con bupivacaína a 0,25% para infiltración de puntos-gatillo.BACKGROUND AND OBJECTIVES: There are controversies about the efficacy of botulin toxin as compared to local anesthetics for triggering-points infiltration. This study aimed at comparing the analgesic effect of botulin toxin and bupivacaine for triggering-points infiltration in chronic myofascial syndrome. METHODS: Participated in this study 20 patients divided in two groups. G1 patients (n = 10 received 25U botulin toxin and G2 patients (n = 10 received 0.25% bupivacaine in one to three triggering-points, being 0.5 mL per point. Patients were weekly evaluated for 8 weeks. Orphenadrine (35 mg and dipirone (300 mg were associated every 8 hours and patients were submitted to transcutaneous electrical stimulation twice a week during 1 hour

  2. Estudo comparativo entre ropivacaína a 0,5% e bupivacaína a 0,5% ambas hiperbáricas, na raquianestesia Estudio comparativo entre ropivacaína a 0,5% y bupivacaína a 0,5% ambas hiperbáricas, en la raquianestesia Spinal anesthesia with 0.5% hyperbaric ropivacaine and 0.5% hyperbaric bupivacaine: a comparative study

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    Afonso Cláudio dos Reis e Carvalho

    2002-11-01

    (50% de los pacientes en el grupo R vs 30% en el grupo B; tiempo para regresión completa del bloqueo sensorial (178,5 ± 65,2 vs 181 ± 26,9 minutos; tiempo para regresión completa del bloqueo motor (192 ± 50,7 vs 162,5 ± 37,8 min; tiempo para la primera queja espontánea de dolor (183,9 ± 37,1 vs 206,5 ± 46,6 minutos. CONCLUSIONES: En este estudio las características clínicas del bloqueo subaracnóideo con ropivacaína o bupivacaína hiperbáricas en dosis equipotentes fueron semejantes. Los datos parecen confirmar observaciones anteriores de que en estas condiciones la potencia de la ropivacaína es aproximadamente igual a la mitad de aquella de la bupivacaína.BACKGROUND AND OBJECTIVES: Spinal anesthesia with ropivacaine has been proven safe both in experimental and clinical studies. On the other hand, ropivacaine is approximately half as potent as bupivacaine in spinal anesthesia when both drugs are used in hyperbaric solutions. This study aimed at comparing clinical spinal block features obtained with hyperbaric ropivacaine or bupivacaine in equipotent doses. METHODS: Twenty ASA I or II patients, aged 20 to 60 years, scheduled for elective surgeries of lower limbs, perineum and inguinal hernioplasty, were randomly allocated into two groups . Group R (n = 10 were given 4 ml 0.5% hyperbaric ropivacaine and Group B (n = 10 were given 2 ml of 0.5% hyperbaric bupivacaine intratecally. Puncture was performed with a 25G needle in the sitting position. Monitoring consisted of SBP, DBP, MBP, HR, ECG and SpO2. Sensory and motor block onset and recovery times, hemodynamic and respiratory changes, and the incidence of adverse effects were recorded. RESULTS: There were no differences between groups in demographics data, sensory block onset (174.4 ± 75.9 vs. 191 ± 51.7 s, motor block onset (373.6 ± 214.6 vs. 240 ± 60 s, upper level of sensory block T8 - T10 (90% of group R patients vs. 70% of group B, motor block grade 3 (50% of group R patients vs. 30% of group B

  3. Volumes anestésicos efetivos no bloqueio do nervo isquiático: comparação entre as abordagens parassacral e infraglútea-arabiceptal com bupivacaína a 0,5% com adrenalina e ropivacaína a 0,5% Volúmenes anestésicos efectivos en el bloqueo del nervio isquiático: comparación entre los abordajes parasacral e infraglúteo-parabicipital con bupivacaína a 0,5% con adrenalina y ropivacaína a 0,5% Effective anesthetic volumes in sciatic nerve block: comparison between the parasacral and infragluteal-parabiceps approaches with 0.5% bupivacaine with adrenaline and 0.5% ropivacaine

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    Pablo Escovedo Helayel

    2009-10-01

    %: 14,9 - 20,8 y el de la bupivacaína 16,4 mL (IC 95%: 12,3 - 21,9. En el abordaje infraglúteo-parabicipital el volumen efectivo promedio de la ropivacaína fue 21,8 mL (IC 95%: 18,7 - 25,5 y bupivacaína 20,4 mL (IC 95%: 18,6 - 22,5. Los volúmenes fueron significativamente menores (p BACKGROUND AND OBJECTIVES: The volume and mass of local anesthetics (LA affect the success rate of peripheral nerve blocks. Thus, the main objective of this study was to determine the volumes of local anesthetics in parasacral and infragluteal-parabiceps sciatic nerve block (SNB. METHODS: One hundred and one patients undergoing infragluteal-parabiceps or parasacral SNB with 0.5% ropivacaine or 0.5% bupivacaine with 5 µg.mL-1 of adrenaline were randomly divided into 4 groups. Success was defined as complete sensitive and motor blockades of the sciatic nerve 30 minutes after the administration of the LA. Volumes were calculated by the up-and-down method. RESULTS: In the parasacral approach, the mean effective volume of ropivacaine was 17.6 mL (95% CI: 14.9-20.8 and of bupivacaine it was 16.4 mL (95% CI: 12.3-21.9. In the infragluteal-parabiceps approach, the mean effective volume of ropivacaine was 21.8 mL (95% CI: 18.7-25.5, and that of bupivacaine was 20.4 mL (95% CI: 18.6-22.5. Volumes were significantly lower (p < 0.01 in the parasacral than in the infragluteal-parabiceps approach. In Probit regression, the estimated effective volume in 95% of the patients in the parasacral approach was 21.8 mL for ropivacaine, and 20.5 mL for bupivacaine; in the infragluteal-parabiceps approach the volumes were 27.2 mL for ropivacaine and 25.5 mL for bupivacaine. The effective volume in 99% of the patients in parasacral SNB was 24 mL for ropivacaine, and 24 mL for bupivacaine; and in the infragluteal-parabiceps approach, 29.9 mL for ropivacaine, and 28.0 mL for bupivacaine. CONCLUSIONS: In sciatic nerve block, significantly smaller volumes were necessary in the parasacral than in the infragluteal

  4. Bloqueio do plexo lombar pela via posterior para analgesia pós-operatória em artroplastia total do quadril: estudo comparativo entre Bupivacaína a 0,5% com Epinefrina e Ropivacaína a 0,5% Bloqueo del plexo lumbar por la vía posterior para analgesia postoperatoria en artroplastia total de la cadera: estudio comparativo entre Bupivacaína a 0,5% con Epinefrina y Ropivacaína a 0,5% Posterior lumbar plexus block in postoperative analgesia for total hip arthroplasty: a comparative study between 0.5% Bupivacaine with Epinephrine and 0.5% Ropivacaine

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    Leonardo Teixeira Domingues Duarte

    2009-06-01

    diferentes bloqueos de nervios periféricos. El objetivo de este estudio, fue comparar la eficacia de la analgesia postoperatoria, resultante de la administración en dosis única de la bupivacaína a 0,5% o de la ropivacaína a 0,5% en el bloqueo del plexo lumbar por la vía posterior en la artroplastia total de la cadera. MÉTODO: Treinta y siete pacientes fueron ubicados aleatoriamente en dos grupos según el anestésico local utilizado en el bloqueo: Grupo B - bupivacaína a 0,5% con epinefrina 1:200.000 o Grupo R - ropivacaína a 0,5%. Durante el período postoperatorio, los puntajes de dolor y el consumo de morfina en la analgesia controlada por el paciente, fueron comparados entre los grupos. El sangramiento durante la operación y la incidencia de efectos adversos y de complicaciones también fueron comparados. RESULTADOS: Pese a que los puntajes de dolor hayan sido menores en el Grupo R 8 horas, 12 horas y 24 horas después del bloqueo, esas diferencias no fueron clínicamente significativas. La regresión lineal múltiple no identificó el anestésico local como una variable independiente. No hubo diferencia en el consumo de morfina, en el sangramiento intraoperatorio y en la incidencia de complicaciones y efectos adversos entre los dos grupos. CONCLUSIONES: La bupivacaína a 0,5% y la ropivacaína a 0,5%, ofrecieron un alivio eficaz y prolongado del dolor postoperatorio después de la artroplastia total de la cadera, sin diferencia clínica, cuando dosis equivalentes fueron administradas en el bloqueo del plexo lumbar por la vía posteriorBACKGROUND AND OBJECTIVES: Posterior lumbar plexus block promotes effective postoperative analgesia in total knee arthroplasty. Ropivacaine and bupivacaine do not show differences in analgesic efficacy when used in different peripheral nerve blocks. The objective of this study was to compare the efficacy of postoperative analgesia resulting from the administration of a single dose of 0.5% bupivacaine or 0.5% ropivacaine in

  5. Analgesia controlada pelo paciente reduz consumo de bupivacaína no bloqueio femoral no tratamento da dor pós-operatória após reconstrução do ligamento cruzado anterior do joelho Analgesia controlada por el paciente reduce consumo de bupivacaína en bloqueo femoral para manejo de dolor postoperatorio en reconstrucción de ligamento cruzado anterior de rodilla Patient controlled analgesia reduces the consumption of bupivacaine in femoral nerve block for the treatment of postoperative pain after reconstruction of anterior cruciate ligament of the knee

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    Victor A. Contreras-Domínguez

    2007-08-01

    a cada 30 min; Grupo 3 (n = 30: 5 mL.h-1 de B + C en PCA cada 30 min. Los pacientes fueron intervenidos bajo anestesia espinal. Se registró dolor posquirúrgico a las 2, 4, 6, 24 y 48 horas mediante Escala Visual Análoga (EVA, consumo de morfina y bupivacaína. RESULTADOS: No se registraron diferencias en las variables demográficas entre ambos grupos. El EVA postoperatorio entre las 2 y 48 horas no mostró diferencias. El consumo de morfina entre las 4 y 48 horas fue similar en los 3 grupos (p = 0,07. En el grupo en que sólo se utilizó modo PCA, el consumo de bupivacaína fue significativamente menor (p BACKGROUND AND OBJECTIVES: Continuous femoral nerve block (CFNB is used in postoperative analgesia of hip and knee replacement surgeries with good results. The objective of this study was to evaluate the usefulness of CFNB, comparing 3 administration schedules of bupivacaine in the arthroscopic anterior cruciate ligament (ACL repair of the knee. METHODS: A prospective, controlled study with 90 stable patients, physical status ASA I and II was undertaken. Patients were divided in three groups: Group 1 (n = 30: continuous infusion (CI at a rate of 10 mL.h-1 of 0.125% bupivacaine + clonidine 1 µg.ml-1 (B+C; Group 2 (n = 30: CI at a rate of 5 mL.h-1 + PCA with 2.5 ml of B+C every 30 minutes; Group 3 (n = 30: PCA with 5 mL.h-1 of B+C every 30 minutes. Patients underwent spinal anesthesia. Postoperative pain at 2, 4, 6, 24, and 48 hours, using the Visual Analogue Scale (VAS, and consumption of morphine and bupivacaine were recorded. RESULTS: There were no statistically significant differences regarding the demographic data in both groups. The postoperative VAS between 2 and 48 hours did not show any differences. Morphine consumption between 4 and 48 hours was similar in all 3 groups (p = 0.07. The consumption of bupivacaine was significantly lower in the group that used only PCA (p < 0.001. CONCLUSIONS: Continuous femoral nerve block is a useful technique to manage

  6. Comparação das alterações hemodinâmicas na intoxicação aguda com bupivacaína e ropivacaína por via venosa em suínos Comparación de las alteraciones hemodinámicas en la intoxicación aguda con bupivacaina y ropivacaína por vía venosa en cerdos Comparison of hemodynamic changes in acute intoxication with intravenous bupivacaine and ropivacaine in swine

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    Marcos De Simone Melo

    2009-10-01

    locorregionales. El objetivo de este estudio fue el de comparar las repercusiones hemodinámicas después de una inyección por vía venosa de los dos agentes en cerdos, simulando una intoxicación que puede ocurrir durante la anestesia locorregional en los humanos. MÉTODO: Se utilizaron cerdos de la raza Large-White, los cuales fueron anestesiados con tiopental, y fue realizada intubación traqueal e instituida la ventilación controlada mecánica. Las variables hemodinámicas se midieron a través de la monitorización invasiva de la presión arterial y de la cateterización de la arteria pulmonar. Después del período de reposo de 30 minutos, los animales fueron aleatoriamente divididos en dos grupos y recibieron por vía venosa 4 mg.kg-1 de uno u otro agente, sin que el investigador lo supiese. Los resultados hemodinámicos fueron evaluados en reposo y 1, 5, 10, 15, 20 y 30 minutos después de la intoxicación. RESULTADOS: Las repercusiones hemodinámicas de la intoxicación aguda con bupivacaina fueron más importantes y más prolongadas que las de la ropivacaina. Con la bupivacaina, el índice cardíaco se redujo más y fue más prolongado, la presión arterial promedio y la frecuencia cardiaca registraron reducciones más prolongadas, la presión venosa central aumento más y la presión capilar pulmonar también aumentó más y durante más tiempo. El impacto en el índice de resistencia vascular sistémica mostró que la vasomotricidad se mantuvo parcialmente. También se registró un aumento en los dos grupos y, paradójicamente, un tiempo mayor con la bupivacaina. CONCLUSIONES: En los cerdos, la ropivacaína causó menos repercusiones hemodinámicas que la bupivacaina, cuando las mismas dosis se inyectaron por vía venosa.BACKGROUND AND OBJECTIVES: Pure levorotatory ropivacaine was introduced to provide a safer alternative to bupivacaine in regional blocks. The objective of this study was to compare the hemodynamic repercussions after the intravenous administration

  7. Efeito da adição de clonidina subaracnóidea à solução anestésica de sufentanil e bupivacaína hiperbárica ou hipobárica para analgesia de parto Efecto de la adición de clonidina subaracnoidea a la solución anestésica de sufentanil y bupivacaína hiperbárica o hipobárica para la analgesia de parto Effects of the addition of subarachnoid clonidine to the anesthetic solution of sufentanil and hyperbaric or hypobaric bupivacaine for labor analgesia

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    Thaís Cristina Tebaldi

    2008-12-01

    ,5% (grupo CLON/HIPER; n = 11 o 2,5 mg de bupivacaína isobárica 0,5% (grupo CLON/ISO; n = 11 en asociación con el sufentanil 2,5 µg y la clonidina 30 µg. El dolor evaluado por la Escala Analógica Visual, la frecuencia cardíaca y la presión arterial promedio, fueron estudiados a cada 5 minutos en los primeros 15 minutos y a continuación, a cada 15 minutos hasta el nacimiento. Fue evaluada la prevalencia de efectos colaterales (náusea, vómito, prurito y sedación. El estudio fue terminado en el momento en que se hizo necesaria la complementación analgésica epidural (dolor > 3 cm o al nacimiento. El análisis estadístico fue realizado a través de los tests t de Student, Chi-cuadrado, Fisher y ANOVA de dos vías para medidas repetidas, considerando como significativo p BACKGROUND AND OBJECTIVES: The addition of subarachnoid clonidine (α-agonist prolongs the analgesia produced by the combination of sufentanil and isobaric bupivacaine in combined labor analgesia¹. The objective of this study was to compare the quality of analgesia and the prevalence of side effects after the addition of subarachnoid clonidine to the anesthetic solution in labor analgesia. METHODS: After approval by the Ethics Commission, 22 pregnant women in labor were randomly assigned to the subarachnoid administration of either 2.5 mg of 0.5% hyperbaric bupivacaine (CLON/HYPER Group; n = 11 or 2.5 mg of 0.5% isobaric bupivacaine (CLON/ISO Group; n = 11 associated with 2.5 µg of sufentanil and 30 µg of clonidine. Pain, evaluated by the Visual Analogue Scale, heart rate, and mean arterial pressure were assessed every 5 minutes during the first 15 minutes, and then every 15 minutes afterwards until delivery. The prevalence of side effects (nausea, vomiting, pruritus, and sedation was evaluated. The study was terminated whenever the patient needed supplemental epidural analgesia (pain > 3 or upon delivery of the fetus. The Student t test, Chi-square test, Fisher exact test, and two-way ANOVA for

  8. Administração intraperitoneal da mistura com excesso enantiomérico de 50% de bupivacaína (S75-R25 para analgesia pós-operatória em colecistectomias videolaparoscópicas Administración intraperitoneal de la mezcla con exceso enantiomérico de 50% de bupivacaína (S75-R25 para analgesia postoperatoria en colecistectomías videolaparoscópicas Intraperitoneal administration of 50% enantiomeric excess (S75-R25 bupivacaine in postoperative analgesia of laparoscopic cholecystectomy

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    João Batista Santos Garcia

    2007-08-01

    40 pacientes sometidos a colecistectomía videolaparoscópica divididos en dos grupos: GI (n = 20 que recibió 80 mL de solución de bupivacaína S75-R25 a 0,125% intraperitoneal al final de la operación; y GII (n = 20 que recibió 80 mL de solución fisiológica a 0,9%. Los dos grupos recibieron 40 mg de tenoxican y 30 mg.kg-1 de dipirona, por vía venosa, poco antes del final de la operación. La analgesia en el postoperatorio (PO se hizo con tramadol. Se evaluaron las puntuaciones de dolor en reposo, al sentarse y en la maniobra de Valsalva, según la escala numérica al despertar y 2, 4, 8, 12 y 24 horas en el PO; la presencia de dolor en el hombro; el tiempo para la primera solicitación del analgésico y su consumo acumulativo. RESULTADOS: Hubo una diferencia estadística significativa entre los puntajes de dolor a las 12 horas en el PO con el paciente en reposo (GI BACKGROUND AND OBJECTIVES: The analgesic effect of intraperitoneal administration of local anesthetics after laparoscopic cholecystectomy is a controversial issue, and the results described vary from considerable pain relief to little reduction in pain. The objective of this study was to evaluate the efficacy of the intraperitoneal administration of 50% enantiomeric excess bupivacaine (S75-R25 for the postoperative pain relief of laparoscopic cholecystectomy. METHODS: A randomized, double blind, placebo controlled study was conducted with 40 patients undergoing laparoscopic cholecystectomy, who were divided in two groups: GI (n = 20 received 80 mL of intraperitoneal 0,125% S75-R25 bupivacaine at the end of the procedure; and GII (n = 20 received 80 mL of intraperitoneal normal saline. Both groups received 40 mg of tenoxicam and 30 mg.kg-1 of intravenous dypirone shortly before the end of the surgery. Tramadol was used for postoperative analgesia (PO. Pain scores were evaluated at rest, sitting up, and during the Valsalva maneuver, according to a numeric scale upon waking up and 2, 4, 8, 12, and 24

  9. Efeito de levobupivacaína e bupivacaína nas dispersões da onda P, QT e QT corrigido (QTc em cesariana Efecto de la levobupivacaína y la bupivacaína en las dispersiones de la onda P, QT y QT corregido (QTc en cesárea The Effect of levobupivacaine and bupivacaine on QT, corrected QT (Qtc, and P wave dispersions in cesarean section

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    Yeliz Deniz

    2013-04-01

    área. MÉTODOS: Sesenta parturientes programadas para cesárea electiva en grupos de riesgo ASA I-II fueron incluidas en el estudio. Los exámenes electrocardiográficos (ECG se hicieron después de la entrada de las pacientes al quirófano. Se registraron la frecuencia cardíaca (FC, presión arterial no invasiva (PANI, saturación periférica de oxígeno (SpO2 y frecuencia respiratoria (RR. Para el acceso venoso, se usó una cánula de calibre 18. La precarga de líquidos fue hecha con una solución de Ringer con lactato (10 mL.kg-1. Después de la precarga de líquidos, un segundo examen electrocardiográfico se hizo y las pacientes fueron designadas aleatoriamente para dos grupos. El Grupo B (n = 30 recibió 10 mg de bupivacaína y el Grupo L (n = 30 recibió 10 mg de levobupivacaína para la raquianestesia. Los exámenes ECG se repitieron en los minutos 1, 5 y 10 después de la anestesia. FC, PANI, SpO2, FR y los niveles de bloqueo sensorial también fueron registrados en los mismos intervalos de tiempo. En intervalos de tiempo predeterminados de raquianestesia, las duraciones de la dispersión de la onda P (OPd, QT (QTd y QTc (QTcd fueron medidas a partir de los registros del ECG. Las duraciones de QT y QTc fueron calculadas con la fórmula de Bazzett. RESULTADOS: No hubo diferencia entre los dos grupos en cuanto a los niveles de bloqueo, parámetros hemodinámicos, OPd, QTd, QTc y QTcd. CONCLUSIONES: La levobupivacaína y la bupivacaína pueden ser los anestésicos de elección para la raquianestesia en las embarazadas con dispersiones prolongadas de la OPd y QTcd en el período preoperatorio.BACKGROUND AND OBJECTIVES: In our study we aimed to investigate the effect of bupivacaine and levobupivacaine on QT, corrected QT (QTc, and P wave dispersion durations during spinal anesthesia in cesarean section. METHODS: Sixty parturients scheduled for elective cesarean section in ASA I-II risk groups were included in the study. Baseline electrocardiographic (ECG records of

  10. Influência de anestésicos locais sobre o bloqueio neuromuscular produzido pelo rocurônio: ação da lidocaína e da mistura enantiomérica em excesso de 50% de bupivacaína na junção neuromuscular Influencia de anestésicos locales sobre el bloqueo neuromuscular producido por el rocuronio: acción de la lidocaína y de la mezcla enantiomérica en exceso de 50% de bupivacaína en la junción neuromuscular Influence of local anesthetics on the neuromuscular blockade produced by rocuronium: effects of lidocaine and 50% enantiomeric excess bupivacaine on the neuromuscular junction

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    Angélica de Fátima de Assunção Braga

    2009-12-01

    acción presináptica y postsináptica.BACKGROUND AND OBJECTIVES: The effects of local anesthetics (LA on neuromuscular transmission and their influence on the neuromuscular blockade produced by competitive neuromuscular blockers have not been fully investigated. The objective of this study was to evaluate, in vitro, the effects of lidocaine and 50% enantiomeric excess bupivacaine (S75-R25 on the neuromuscular blockade produced by rocuronium. METHODS: The rats were divided in five groups (n = 5 according to the drug used: isolated lidocaine, bupivacaine (S75-R25, or rocuronium (groups I, II, and II; and rocuronium in preparations previously exposed to LAs (groups IV and V. The concentrations used were as follows: 20 µg.mL-1, 5 µg.mL-1, and 4 µg.mL-1 of lidocaine, bupivacaine (S75-R25, and rocuronium, respectively. The following parameters were evaluated: 1 the strength of muscular contraction of the diaphragm to indirect electrical stimulations, before and 60 minutes after the isolated addition of the LAs and rocuronium, and the association AL-rocuronium; and 2 the effects of LAs on membrane potential (MP and miniature end-plate potentials (MEPP. The effect of LAs on muscle contraction in response to acetylcholine was evaluated in chick biventer cervicis preparations. RESULTS: Isolated lidocaine and bupivacaine (S75-R25 did not change the muscular response and the levels of MPs. In preparations exposed to LAs, rocuroniuminduced blockade was significantly greater than that produced by rocuronium alone. In chick biventer cervicis preparations, lidocaine and bupivacaine (S75R25 decreased contraction in response to acetylcholine. Lidocaine increased the frequency of MEPPs, which was followed by the blockade; bupivacaine (S75R25 caused a reduction in MEPPs followed by blockade. CONCLUSIONS: Local anesthetics caused a potentiation of the neuromuscular blockade produced by rocuronium. The results showed pre- and post-synaptic effects.

  11. Bloqueio peribulbar com a associação da mistura enantiomérica de bupivacaína (S75-R25 a 0,5% e lidocaína a 2%: efeitos da adição de hialuronidase Bloqueo peribulbar con la asociación de la mezcla enantiomérica de bupivacaína (S75-R25 a 0,5% y lidocaína a 2%: efectos de la adición de hialuronidasa Peribulbar block with the association of 0.5% enantiomeric mixture of bupivacaine (S75-R25 and 2% lidocaine: effects of hyaluronidase addition

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    Luiz Fernando Soares

    2002-07-01

    realización de bloqueo peribulbar con la asociación de la mezcla enantiomérica de bupivacaína (S75-R25 a 0,5% y lidocaína a 2%. MÉTODO: Fueron estudiados 35 pacientes divididos en grupo 1, que recibió una combinación de iguales volúmenes de mezcla enantiomérica de bupivacaína (S75-R25 a 0,5% y lidocaína a 2% con adrenalina 5 µg.ml-1 y grupo 2, que recibió la misma solución anestésica adicionada de hialuronidasa 50 UI.ml-1. La motilidad de los músculos rectos, orbicular del ojo y elevador de la pálpebra fue evaluada 1, 5, 10 y 15 minutos después del bloqueo. RESULTADOS: Los escores de motilidad de los músculos extra-oculares diminuyeron significativamente durante el período de observación, sin diferencias entre los grupos. Los porcentuales de pacientes que presentaron acinesia del globo ocular en cada momento del estudio no diferiran significativamente entre los grupos. Los escores de dolor a la inyección del anestésico local no diferiran entre los grupos. La anestesia quirúrgica fue satisfactoria en todos los pacientes. CONCLUSIONES: Este estudio no demostró ningún efecto de la adición de hialuronidasa en la concentración de 50 UI.ml-1 sobre la acinesia de los músculos rectos, elevador de la pálpebra y orbicular del ojo durante la instalación de bloqueo peribulbar realizado con la asociación de la mistura enantiomérica de bupivacaína (S75-R25 a 0,5% y lidocaína a 2% con adrenalina 5 µg.ml-1.BACKGROUND AND OBJECTIVES: The benefits of adding hyaluronidase to local anesthetics for peribulbar blockade remain controversial. This study aimed at comparing the effects of hyaluronidase on the akinesia of rectis muscles, elevator muscle of upper eyelid and orbicular muscle of the eye after peribulbar blockade with 0.5% enantiomeric mixture of bupivacaine (S75-R25 and 2% lidocaine. METHODS: Participated in this study 35 adult patients, who were distributed in group 1, receiving a 1:1 association of 0.5% enantiomeric mixture of bupivacaine (S75-R25

  12. Drug: D01450 [KEGG MEDICUS

    Lifescience Database Archive (English)

    Full Text Available D01450 Drug Bupivacaine hydrochloride hydrate (JP16); Bupivacaine hydrochloride (US... system 121 Local anesthetics 1214 Xylidines D01450 Bupivacaine hydrochloride hydrate (JP16); Bupivacaine hy...STHETICS N01B ANESTHETICS, LOCAL N01BB Amides N01BB01 Bupivacaine D01450 Bupivacaine hydrochloride hydrate (JAN); Bupivacaine...l (SCN1A) [HSA:6323] [KO:K04833] Bupivacaine [ATC:N01BB01] D01450 Bupivacaine hydrochloride hydrate (JAN); Bupivacaine... hydrochloride (USP) voltage-gated sodium channel (SCN2A) [HSA:6326] [KO:K04834] Bupivacaine

  13. Volumes efetivos de anestésicos locais para o bloqueio do compartimento da fáscia ilíaca: estudo comparativo duplamente encoberto entre ropivacaína a 0,5% e bupivacaína a 0,5% Volúmenes efectivos de anestésicos locales para el bloqueo del compartimiento de la fascia ilíaca: estudio comparativo doblemente encubierto entre ropivacaína a 0,5% y bupivacaína a 0,5% Effective volume of local anesthetics for fascia iliac compartment block: a double-blind, comparative study between 0.5% ropivacaine and 0.5% bupivacaine

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    Pablo Escovedo Helayel

    2006-10-01

    utilizado volúmenes fijos de ropivacaína o de bupivacaína. Este estudio tuvo como objetivo calcular los volúmenes de ropivacaína a 0,5% y de bupivacaína a 0,5% efectivos en 50% (VE50, 95% (VE95 y 99% (VE99 de los casos para la realización de bloqueos del compartimento de la fascia ilíaca. MÉTODO: Cincuenta y un adultos con cirugías marcadas electivas de la cadera, diáfisis femoral y rodilla se sometieron al bloqueo del compartimento de la fascia ilíaca. Los pacientes fueron aleatoriamente distribuidos y recibieron ropivacaína a 0,5% (n = 25 o bupivacaína a 0,5% (n = 26. El éxito del bloqueo fue definido como bloqueo sensitivo completo de las regiones anterior, media y lateral del muslo. El volumen anestésico fue determinado por el método up-and-down de Massey y Dixon y los volúmenes efectivos fueron calculados por las formulas de Massey y Dixon (VE50 y por regresión de probits (VE50, VE95 y VE99. RESULTADOS: Los volúmenes anestésicos capaces de producir bloqueo nervioso efectivo en 50% de los casos, calculados por la formula de Massey y Dixon, fueron 28,79 mL (IC 95% : 26,31 -31,5 mL para ropivacaína y 29,56 mL (IC 95% : 25,22 - 34,64 mL para bupivacaína (p = 0,62. Los volúmenes efectivos de ropivacaína capaces de bloquear 50%, 95% y 99% de los casos se estimaron por la regresión de probits como 28,8 mL (27,2 - 30,4, 34,3 mL (32,5 - 37,3 y 36,6 mL (34,3 - 40,5, respectivamente. Los volúmenes correspondientes de bupivacaína fueron 29,5 mL (28,1 - 31,1, 36,1 mL (33,5 - 38,1, y 37,3 mL (35,1 - 41,3 (p > 0,05. CONCLUSIONES: Los volúmenes necesarios de ropivacaína a 0,5% y bupivacaína a 0,5% con adrenalina 1:200.000 para el bloqueo del compartimento de la fascia ilíaca son semejantes.BACKGROUND AND OBJECTIVES: Fascia iliac compartment block is widely used as one of the anesthetic techniques used for surgical interventions of the hip, thigh, and knee. The majority of the studies have used fixed volumes of ropivacaine or bupivacaine. The objective

  14. Efeitos hemodinâmicos da intoxicação aguda com bupivacaína, levobupivacaína e mistura com excesso enantiomérico de 50%: estudo experimental em suínos Efectos hemodinámicos de la intoxicación aguda con bupivacaína, levobupivacaína y mezcla con exceso enantiomérico de 50%: estudio experimental en cerdos Hemodynamic effects of the acute intoxication with bupivacaine, levobupivacaine and 50% enantiomeric excess mixture: an experimental study in pigs

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    Artur Udelsmann

    2007-02-01

    utiliza el isómero levógiro puro, pero están a tono con los resultados recientes también obtenidos en animales. Rebasar los datos obtenidos en cerdos con los obtenidos en seres humanos, exige mucha cautela y nuevos estudios se hacen necesarios. CONCLUSIONES: En cerdos, la mezcla con exceso enantiomérico de 50% particularmente, y la levobupivacaína fueron más tóxicas cuando se administraron por vía venosa que la bupivacaína racémica.BACKGROUND AND METHODS: Until recently, bupivacaine had been the anesthetic of choice for loco-regional blocks due to the quality and duration of the anesthesia. But its cardiovascular toxicity is a source of concern for anesthesiologists who seek new pharmacological options with a smaller degree of this problem. Its levorotatory isomer, levobupivacaine, that would be less cardiotoxic due a smaller affinity for the receptors of the sodium channels of the cardiac cell, is one of these options. In Brazil, a presentation containing 75% of the levorotatory isomer and 25% of the dextrorotatory isomer, called 50% enantiomeric excess mixture is available. The aim of this study was to evaluate the hemodynamic repercussions of the intravascular injection of a toxic dose of those three agents to determine which one has the least impact in the case of an accident. METHODS: Large White pigs were anesthetized with thiopental, intubated, and placed on mechanical ventilation. Hemodynamic monitoring was achieved with a Swan-Ganz catheter and invasive blood pressure. After a period of rest, the animals were randomly divided in three groups. The intoxication was performed, on a double-blind fashion, with 4 mg.kg-1 of one of the drugs. Hemodynamic parameters were evaluated during 30 minutes. Analytical tests were used to compare the results among the groups. RESULTS: The 50% enantiomeric excess mixture and levobupivacaine had greater hemodynamic repercussions than the racemic mixture, which were more pronounced with the first drug. These results go

  15. Liposomal bupivacaine – New trends in Anesthesia and Intensive Care Units

    Directory of Open Access Journals (Sweden)

    Alexandru Florin Rogobete

    2015-01-01

    Full Text Available Progress made on local anesthetics controlled release formulation and their ability to induce motor and sensory block for a longer period of time brings significant advantages in clinical practice. The use of sustained release formulations provides analgesia for a long period of time with one administration, thus limiting the complications that can occur with conventional analgesia. Also, controlled release of a biologically active compound prevents overdosing, minimizing the side effects, especially cardiotoxicity, neurotoxicity and tissue lesions. Clinical use of liposomal formulation brings high impressive results in pain control and quick patient recovery. Increased patient comfort, reducing to half the hospital length of stay, and treatment costs are able to provide a higher level of healthcare.

  16. Epidural bupivacaine combined with dexmedetomidine or clonidine in infraumbilical surgeries: a comparative evaluation

    Directory of Open Access Journals (Sweden)

    Shilpi Agarwal

    2015-11-01

    Results: The time of onset of sensory block at T10 and time to reach maximum sensory block (T6 in group-I was significantly longer as compared to group-II. The complete motor blockade (grade-3 was achieved much later and time taken for recovery to grade-0 was significantly shorter in group-I. The time for rescue analgesia in group-I was significantly shorter as compared to group-II. Hypotension was the most common side effect in both the groups. Dry mouth is a known side effect of alpha-2 agonists. Epidural dexmedetomidine produced profound sedation. Conclusions: We conclude from this study that dexmedetomidine is a better adjuvant than clonidine for providing early onset of sensory analgesia, superior sedative properties and prolonged post-operative analgesia. [Int J Res Med Sci 2015; 3(11.000: 3254-3261

  17. Caudal bupivacaine supplemented with caudal or intravenous clonidine in children undergoing hypospadias repair

    DEFF Research Database (Denmark)

    Hansen, Tom Giedsing; Henneberg, Steen Winther; Walther-Larsen, Søren;

    2004-01-01

    Clonidine is used increasingly in paediatric anaesthetic practice to prolong the duration of action of caudal block with a local anaesthetic agent. Which route of administration of clonidine is the most beneficial remains unknown. We compared the effects of caudal and i.v. clonidine on postoperat...

  18. Prolonged analgesia following preoperative bupivacaine neural blockade for oral surgery performed under general anesthesia.

    Science.gov (United States)

    Chapman, P J; Ganendran, A

    1987-03-01

    The effectiveness of prolonged neural blockade following removal of impacted third molars under general anesthesia was evaluated in a controlled clinical study. There was a significant reduction in the amount of postoperative pain experienced, and no complications, either local or systemic, occurred. The technique has advantages, especially when general anesthesia is administered to outpatients.

  19. Analgesia pós-operatória com bloqueio bilateral do nervo pudendo com bupivacaína S75:R25 a 0,25%: estudo piloto em hemorroidectomia sob regime ambulatorial Analgesia pos-operatoria con bloqueo bilateral del nervio pudendo con bupivacaína S75:R25 a 0,25%: estudio piloto en hemorroidectomia bajo régimen ambulatorial Bilateral pudendal nerves block for postoperative analgesia with 0.25% S75:R25 bupivacaine: pilot study on outpatient hemorrhoidectomy

    Directory of Open Access Journals (Sweden)

    Luiz Eduardo Imbelloni

    2005-12-01

    , justificado por la anestesia en el pene. CONCLUSIONES: El bloqueo bilateral de los nervios pudendos, orientado por estimulador de nervios proporciona una analgesia de excelente calidad, con baja necesidad de opioides, sin complicaciones local o sistémica y sin retención urinaria. Estudios controlados permitirán demostrar si esta técnica debe ser la primera opción para la analgesia en hemorroidectomias. La permanencia de anestesia perineal por 20,21 horas deberá inducir nuevos trabajos con el bloqueo de los nervios pudendos orientado por estimulador para el acto quirúrgico.BACKGROUND AND OBJECTIVES: Hemorrhoidectomy may be performed under several anesthetic techniques and in outpatient regimen. Postoperative pain is severe and may delay discharge. This study aimed at evaluating bilateral pundendal nerves block for post- hemorrhoidectomy analgesia. METHODS: Bilateral pundendal nerves block with 0.25% S75:R25 bupivacaine was performed with nerve stimulator in 35 patients submitted to hemorrhoidectomy under spinal anesthesia. Evaluated parameters were pain severity, duration of analgesia, demand analgesia and possible technique-related complications. Data were evaluated 6, 12, 18, 24 and 30 hours after surgery completion. RESULTS: Successful pudendal nerves stimulation was achieved in all patients. There has been no severe pain in all evaluated moments. At 12 hours after blockade, all patients had perineal anesthesia; at 18 hours, 17 patients and at 24 hours, 10 patients still presented perineal anesthesia. Postoperative analgesia was optimal for 18 patients; satisfactory, for 5 patients; and unsatisfactory, for 7 patients. Mean analgesic duration was 23.77 hours. There were no changes in blood pressure, heart rate, no nausea and vomiting were observed. All patients had spontaneous micturition. No local anesthetic-related local or systemic complications were observed. Technique was considered excellent by 27 patients and only 3 male patients considered it satisfactory due

  20. Comparação de morfina administrada por via intravenosa e via epidural com/sem bupivacaína ou ropivacaína no tratamento da dor pós-toracotomia com a técnica de analgesia controlada pelo paciente Comparación de la morfina administrada por vía intravenosa y vía epidural con /sin bupivacaína o ropivacaína en el tratamiento del dolor pos toracotomía con la técnica de analgesia controlada por el paciente Comparison of intravenous morphine, epidural morphine with/without bupivacaine or ropivacaine in postthoracotomy pain management with patient controlled analgesia technique

    Directory of Open Access Journals (Sweden)

    Esra Mercanoğlu

    2013-04-01

    ón por vía intravenosa o epidural de morfina, bupivacaína o ropivacaína en el tratamiento del dolor pos toracotomía. MÉTODOS: Sesenta pacientes sometidos a procedimientos de toracotomía electiva fueron aleatoriamente ubicados en cuatro grupos con el uso de la técnica de sobres lacrados. Los grupos MIV, ME, MEB y MER recibieron morfina controlada por el paciente por vía intravenosa, epidural, morfina-bupivacaína y morfina-ropivacaína, respectivamente. La frecuencia cardíaca, presión arterial y la saturación de oxígeno perioperatorias y el dolor postoperatorio en reposo y durante la tos, los efectos colaterales y la necesidad de analgésicos de rescate fueron registrados a los 30 y 60 minutos y las 2, 4, 6, 12, 24, 36, 48 y 72 horas. RESULTADOS: La necesidad de sodio diclofenaco durante el estudio fue menor en el grupo ME. El área bajo la curva de tiempo en la VAS fue menor en el grupo ME en comparación con el Grupo MIV, pero similar al Grupo MEB y MER. Las puntuaciones de dolor en reposo fueron mayores en los tiempos 12, 24, 36 y 48 horas en el Grupo MIV en comparación con el grupo ME. Las puntuaciones de dolor en reposo fueron mayores a los 30 y 60 minutos en los Grupos ME y MIV en comparación con el Grupo MEB. Las puntuaciones de dolor durante la tos a los 30 minutos fueron mayores en el grupo ME en comparación con el Grupo MEB. No hubo diferencia entre los Grupos MIV y MER. CONCLUSIONES: La morfina administrada por vía epidural fue más eficaz que por la vía intravenosa. La eficacia fue mayor en el grupo EM en el período postoperatorio tardío y en el Grupo MEB en el período postoperatorio inicial. Concluimos entonces que la morfina administrada por vía epidural fue la más eficaz y nuestra preferida.BACKGROUND AND OBJECTIVEs: The aim of this randomized, double-blinded, prospective study was to determine the effectiveness and side effects of intravenous or epidural use of morphine, bupivacaine or ropivacaine on post-thoracotomy pain management

  1. Influence of timing on the effect of continuous extradural analgesia with bupivacaine and morphine after major abdominal surgery

    DEFF Research Database (Denmark)

    Dahl, J B; Hansen, B L; Hjortsø, N C;

    1992-01-01

    differences between the groups in pain scores (visual analogue scale or verbal) during rest or ambulation at any time of measurement. These results do not suggest that timing of analgesia with a conventional extradural regimen is of major clinical importance in patients undergoing colonic surgery....

  2. A comparison of intrathecal dexmedetomidine verses intrathecal fentanyl with epidural bupivacaine for combined spinal epidural labor analgesia

    Directory of Open Access Journals (Sweden)

    P K Dilesh

    2014-01-01

    Conclusion: 10 μg dexmedetomidine intrathecally provides a longer duration of analgesia with lesser incidence of pruritus compared to 20 μg fentanyl intrathecally for CSE labor analgesia with comparable neonatal side-effects.

  3. The effect of a single dose of bupivacaine on donor site pain after anterior iliac crest bone harvesting.

    NARCIS (Netherlands)

    Barkhuysen, R.; Meijer, G.J.; Soehardi, A.; Merkx, M.A.W.; Borstlap, W.A.; Berge, S.J.; Bronkhorst, E.M.; Hoppenreijs, T.J.M.

    2010-01-01

    Transplants from the anterior iliac crest are used for most reconstructive procedures in cranio-maxillofacial surgery. The advantages are easy accessibility, the ability to work in two teams and the amount of corticocancellous bone available; disadvantages are postoperative pain and gait disturbance

  4. Comparação entre os efeitos hemodinâmicos da intoxicação aguda com bupivacaína racêmica e a mistura com excesso enatiomérico de 50% (S75-R25: estudo experimental em cães Comparación entre los efectos hemodinámicos de la intoxicación aguda con bupivacaína racémica y la mezcla con exceso enatiomérico de 50% (S75-R25: estudio experimental en perros Comparison of the hemodynamic effects in acute intoxication with racemic bupivacaine and with 50% enantiomeric excess mixture (S75-R25: an experimental study in dogs

    Directory of Open Access Journals (Sweden)

    Artur Udelsmann

    2006-08-01

    anestesia proporcionada. Su toxicidad cardiovascular, sin embargo ya hace mucho tiempo preocupa a los anestesiólogos y nuevas opciones han sido buscadas. Una de ellas es la utilización de su isómero levógiro que por una menor afinidad con los receptores de los canales de sodio de la célula cardiaca que sería menos cardiotóxico. En nuestro medio existe la presentación que contiene un 75% del isómero levógiro y 25% del isómero dextrógiro, denominada mezcla con exceso enantiomérico de 50% (S75-R25. El objetivo de este estudio fue comparar en animales los efectos hemodinámicos de la intoxicación aguda con bupivacaína racémica y con la mezcla S75-R25. MÉTODO: Cuarenta y cuatro perros fueron anestesiados con pentobarbital, entubados y ventilados mecánicamente, siendo en seguida instalada la monitorización hemodinámica con catéter de Swan-Ganz y presión invasiva. Después del período de reposo fueron divididos aleatoriamente en dos grupos de estudio encubierto, según la intoxicación con uno u otro agente en la dosis de 5 mg.kg-1. Los resultados hemodinámicos se recolectaron durante 30 minutos, tratados estadísticamente permitiendo la comparación de la acción de los dos agentes. RESULTADOS: La mezcla S75-R25 causó mayores repercusiones hemodinámicas, particularmente, con importante disminución de la presión arterial promedio, del índice cardiaco y del índice de trabajo del ventrículo izquierdo. CONCLUSIONES: Esos resultados se contraponen con los encontrados en humanos, cuando se utiliza el isómero levógiro puro, pero están de acuerdo con estudios recientes en animales. Rebasar datos obtenidos en animales para seres humanos exige mucha cautela. Nuevos estudios se hacen necesarios en muestras más abarcadoras y en grupos más homogéneos.BACKGROUND AND OBJECTIVES: Racemic bupivacaine has been widely used in locoregional anesthesia due to the quality and duration of its anesthetic action. However, its cardiovascular toxicity has worried

  5. Raquianestesia unilateral com bupivacaína hipobárica Raquianestesia unilateral con bupivacaína hipobárica Unilateral spinal anesthesia with hypobaric bupivacaine

    OpenAIRE

    Luiz Eduardo Imbelloni; Lúcia Beato; M. A. Gouveia

    2002-01-01

    JUSTIFICATIVA E OBJETIVOS: Um bloqueio simpático restrito durante raquianestesia pode minimizar as alterações hemodinâmicas. Teoricamente, o uso de soluções não isobáricas de anestésicos locais pode produzir anestesia unilateral e restringir a desnervação simpática a apenas um lado do corpo. A dose do anestésico local e o tempo que o paciente permanece em decúbito lateral para a realização da raquianestesia unilateral são desconhecidos. O presente estudo prospectivo investiga a incidência de ...

  6. Comparison of the effects of continuous intrapleural vs epidural administration of 0.5% bupivacaine on pain, metabolic response and pulmonary function following cholecystectomy

    DEFF Research Database (Denmark)

    Scott, N B; Mogensen, T; Bigler, D;

    1989-01-01

    , pulmonary function and the surgical stress response. As assessed by the visual analogue scale (VAS), both groups received good but not total pain relief. Both groups had a 50% reduction in forced expiratory volume (FEV1), forced vital capacity (FVC) and peak expiratory flow rate (PEFR) after operation...

  7. Effect of oral clonidine, etoricoxib, and gabapentin as premedication on sensory and motor blocks and post operative analgesia in surgeries under subarachnoid block using bupivacaine.

    Science.gov (United States)

    Tiwari, Akhilesh K; Tayal, Swapnil; Chadha, Madhur; Ganguly, Subroto; Mandhyan, Rajani

    2014-01-01

    Oral premedicant has better patient compliance since it avoids a potential needle prick, and hence can be considered closest to an ideal premedicant. This was a randomized prospective observational study on 120 patients after obtaining ethical committee approval and valid informed consent from patients to be part of the study. We assessed the onset and duration of both sensory and motor blocks along with postoperative analgesic requirement by the patient in terms of first dose and total dose required over the period of 24 hours. It is recommended that clonidine, etoricoxib, and gabapentin be considered as good premedicants for patients undergoing surgery under spinal anesthesia. However, more research using these drugs needs to be carried out in the field of premedication.

  8. Continuous thoracic extradural 0.5% bupivacaine with or without morphine: effect on quality of blockade, lung function and the surgical stress response

    DEFF Research Database (Denmark)

    Scott, N B; Mogensen, T; Bigler, D

    1989-01-01

    of morphine was associated with total alleviation of pain, and a stable level of sensory analgesia, but not with changes in blood glucose and cortisol concentrations or postoperative impairment of lung function (PEFR, FEV1, FVC). Two patients were withdrawn because of hypotension or respiratory depression....

  9. Onset and duration of anesthesia for local anesthetic combinations commonly used in forefoot surgery; surprise results with sequential blocks.

    Science.gov (United States)

    Blazer, Marie Mantini; Petrozzi, Rocco; Harris, Samantha Y; Greer, Hillary; Goldfarb, Jacqueline; Biernacki, Tomasz; Kawalec, Jill S

    2015-06-01

    Local anesthetic nerve blocks are frequently used for postoperative analgesia and to the best of our knowledge no studies have evaluated the effects of injecting bupivacaine into an area previously injected with lidocaine. Sensation was tested in three groups of subjects receiving local anesthetic digital blocks. Group A received bupivacaine 0.25% plain. Group B received a 1:1 mixture of lidocaine 1% plain and bupivacaine 0.25%. Group C received an initial block of lidocaine 1% plain sequentially followed by bupivacaine 0.25% 1h later. Bupivacaine exhibited a delayed onset and the longest duration when compared to the other two groups. The group receiving the 1:1 mixture showed a rapid onset that resembled that of lidocaine and a shortened duration that did not resemble bupivacaine. The group receiving the sequential injections showed that even after a 1h interval following the lidocaine infiltration, there was a deleterious effect on duration of action of the bupivacaine. Using bupivacaine as a post-surgical block in the presence of residual lidocaine from a preoperative block is not warranted as once again, the extended duration of bupivacaine is mitigated. Bupivacaine alone as an initial operative block affords clinically acceptable onset of anesthesia while also providing extended duration of action.

  10. [原著]リドカイン代謝に及ぼすブピバカインの影響 : in vitro, in vivo での検討

    OpenAIRE

    磯, 淳典; 平良, 豊; 垣花, 脩; 濱田, 哲; 奥田, 佳朗; Iso, Atunori; Taira, Yutaka; Kakinohana, Osamu; Hamada, Satosi; Okuda, Yoshiaki; 琉球大学医学部麻酔科

    1992-01-01

    To evaluate the effects of bupivacaine on lidocaine metabolism mediated by chtochrome P-450, we analyzed enzyme kinetics in an in vitro study using rat liver microsomes and pharmacokinetics in an in vivo study using anesthetized dogs. In vitro study,bupivacaine showed mixed type inhibition of hdocaine metabolism with inhibition constants being 1.38mM. Since bupivacaine did not affect cytochrome C reductase activity,this inhibition of lidocaine metabolism may have been caused by the action on ...

  11. Estudo comparativo entre levobupivacaína a 0,5% e bupivacaína racêmica a 0,5% associadas ao sufentanil na anestesia peridural para cesariana

    OpenAIRE

    João Batista Santos Garcia; Oliveira,José R; Silva,Elismar P A; Privado, Marcelo S; Yamashita,Américo M; Issy,Adriana M

    2001-01-01

    BACKGROUND AND OBJECTIVES: Although the widespread use of local anesthetics in surgery and obstetrics, racemic bupivacaine is associated to potentially fatal cardiotoxicity. Data suggest that levobupivacaine has local anesthetic effects similar to racemic bupivacaine with the advantage of less central nervous system and cardiovascular toxicity. Studies have shown that epidural anesthesia with racemic bupivacaine and sufentanil for cesarean sections results in a better quality of anesthesia. T...

  12. Rates of caesarean section and instrumental vaginal delivery in nulliparous women after low concentration epidural infusions or opioid analgesia: systematic review

    OpenAIRE

    Liu, E H C; Sia, A T H

    2004-01-01

    Objective To compare the effects of low concentration epidural infusions of bupivacaine with parenteral opioid analgesia on rates of caesarean section and instrumental vaginal delivery in nulliparous women.

  13. Effect of intrathecal Bupivacaine–Lidocaine combination on motor block and analgesia period

    Directory of Open Access Journals (Sweden)

    Sara El-Adawy

    2012-06-01

    Conclusions: Lidocaine 1% (6 mg mixed to spinal 1.5 mL hyperbaric 0.5% Bupivacaine (7.5 mg can shorten the duration of Bupivacaine spinal anesthesia, provide more rapid recovery from the spinal anesthesia compared to the same dose of 0.5% Bupivacaine (7.5 mg alone or the same dose of 0.5% Bupivacaine (7.5 mg mixed with 0.6 mL 2% Lidocaine (12 mg.

  14. The application of Bupivacaine mixed Dolantin on easing pain after cholcystectomy by epidural anestesia%布比卡因混合度冷丁在胆囊切除术后硬膜外镇痛的应用

    Institute of Scientific and Technical Information of China (English)

    刘敏

    2005-01-01

    阿片类镇痛药物已广泛用于硬膜外术后镇痛,已有研究证明使用度冷丁出现恶心、呕吐、呼吸抑制、尿潴留等副作用明显轻于吗啡,几乎取代了吗啡在镇痛方面的应用,故我院将布比卡因混合度冷丁应用于硬膜外胆囊切除术后,效果良好,现报告如下。

  15. COMPARISION OF TWO DRUG COMBINATIONS FOR LABOUR ANALGESIA, AND ITS EFFECT ON PATIENT SATISFACTION, DURATION OF LABOUR AND FETAL OUTCOME

    Directory of Open Access Journals (Sweden)

    Jaideep

    2014-09-01

    Full Text Available : BACKGROUND: Epidural is now established and accepted method to relief labour pain. This study intended to comparison of two drug combinations in labour analgesia and its effect on duration of labour, maternal satisfaction and fetal outcome. Combined epidural infusion of bupivacaine + fentanyl would result in analgesia superior to that provided by a continuous epidural infusion of a similar concentration of Bupivacaine alone. AIMS AND OBJECTIVE: To compare the efficacy of two drug combinations for labour analgesia, and its effect on patient satisfaction, duration of labour and fetal outcome. MATERIALS AND METHODS: Study design – comparative randomized controlled study. Sample size: For this study 50 pregnant women were randomly selected and divided into two groups. GROUP I: Control Group (Continuous epidural infusion of Bupivacaine CEI: 25 parturient who were given a bolus of 0.1% Bupivacaine + 20mcg Fentanyl followed by infusion of 0.0625% Bupivacaine epidurally. GROUP II: Study Group (Continuous epidural infusion of Bupivacaine with Fentanyl CEIF: 25 parturients who were given a bolus of 0.1% Bupivacaine + 20mcg Fentanyl followed by infusion of 0.0625% Bupivacaine + 0.0001% Fentanyl epidurally. Duration of labour, Analgesia, maternal satisfaction, fetal outcome was assessed by different scales like bromage scale, visual analogue scale, APGAR score and pin prick method are used. Side effects and complications, if present were recorded.

  16. Sectio og Brugadas syndrom

    DEFF Research Database (Denmark)

    Ammundsen, Henriette Berg; Ekelund, Kim; Afshari, Arash

    2016-01-01

    to induce fatal arrhythmias in patients with BS and in particular sodium channel blockers i.e. local anaesthetics such as bupivacaine. We report the anaesthetic management of two women with BS during caesarean section and provide a general discussion on the use of bupivacain for neuraxial blockade...

  17. No antiinflammatory effect of short-term topical and subcutaneous administration of local anesthetics on postburn inflammation

    DEFF Research Database (Denmark)

    Møiniche, S; Dahl, J B; Brennum, J;

    1993-01-01

    , development of blister and ulcerations, or the intensity of inflammation after burn injury between the control legs and EMLA- or bupivacaine-treated legs, respectively. CONCLUSION. No antiinflammatory effect of short-term preinjury and postinjury topical 5% EMLA or subcutaneous 0.5% bupivacaine could...

  18. Effect of Age, Adernaline and Operation Site on Duration of Caudal Analgesia in Paediatric Patients

    Directory of Open Access Journals (Sweden)

    Kharirat Mohd., Yasir,G.A.Mir

    2003-04-01

    Full Text Available The effect ofage, operative site and addition of 1: 200,000 adrenaline to bupivacaine was evaluatedon the duration ofpost operative analgesia after caudal block in 200 children between the age groupof 1 year to 14 years. Anaesthesia was induced and maintained on Halothane/N20I02• After thiscaudal block was performed with 0.5 mllkg of0.25% bupivacaine in one group of 100 Children andwith 0.25% bupivacaine with adrenaline 1 : 200,000 in another 100 children. The duration of postoperative analgesia was noted to be significantly longer in young children, in children having penoscrotaloperations and when adrenaline was added to bupivacaine. Conclusion was drawn that durationofpost-operative analgesia depended upon age, site and addition of adrenaline to bupivacaine.

  19. Epinephrine as adjuvant for propranolol produces a marked peripheral action in intensifying and prolonging analgesia in response to local dorsal cutaneous noxious pinprick in rats.

    Science.gov (United States)

    Tzeng, Jann-Inn; Pan, He-Jia; Liu, Kuo-Sheng; Chen, Yu-Wen; Chen, Yu-Chung; Wang, Jhi-Joung

    2014-10-05

    The aim of this study was to evaluate the effect of epinephrine as additive for propranolol as an infiltrative anesthetic. Using a rat model of cutaneous trunci muscle reflex (CTMR), we tested the effect of co-administration of epinephrine with propranolol on infiltrative cutaneous analgesia. Bupivacaine, a long-lasting local anesthetic, was used as control. Subcutaneous propranolol and bupivacaine elicited a dose-dependent local anesthetic effect on infiltrative cutaneous analgesia. On the 50% effective dose (ED50) basis, the relative potency was bupivacaine [2.05 (1.95-2.21) μmol/kg]>propranolol [9.21 (9.08-9.42) μmol/kg] (Ppropranolol or bupivacaine) at ED50 or ED95, respectively, intensified and prolonged drug action on infiltrative cutaneous analgesia. Intraperitoneal injection of combined drugs (propranolol or bupivacaine) at ED95 with epinephrine (0.012 μmol/kg) exhibited no cutaneous analgesia. We concluded that propranolol was less potent but produced a similar duration of action when compared to bupivacaine on infiltrative cutaneous analgesia. Epinephrine as adjuvant for propranolol or bupivacaine enhanced the potency and extended the duration of action on infiltrative cutaneous analgesia.

  20. Clonidine as an adjuvant for propranolol enhances its effect on infiltrative cutaneous analgesia in rats.

    Science.gov (United States)

    Hung, Ching-Hsia; Chiu, Chong-Chi; Liu, Kuo-Sheng; Wang, Jhi-Joung; Chen, Yu-Wen

    2016-03-11

    Clonidine prolongs duration of analgesia when used as an adjunct to local anesthetics for infiltrative cutaneous analgesia, and propranolol produces local anesthesia. The purpose of the experiment was to evaluate clonidine as an adjuvant for propranolol on the quality and duration of cutaneous analgesia. A rat model of cutaneous trunci muscle reflex (CTMR) in response to local skin pinprick was employed to evaluate the cutaneous analgesic effect of propranolol combined with clonidine. The long-lasting local anesthetic bupivacaine was used as control. Cutaneous analgesia elicited by propranolol and bupivacaine was dose-dependent, and both propranolol (9.0μmol) and bupivacaine (1.8μmol) produced 100% nociceptive blockade. On an 50% effective dose (ED50) basis, the relative potency was bupivacaine [0.48 (0.42-0.55) μmol] greater than propranolol [2.27 (1.98-2.54) μmol] (ppropranolol or bupivacaine) at ED50 or ED95 increased the potency and extended the duration at producing cutaneous analgesia. The resulting data demonstrated that propranolol is less potent than bupivacaine as an infiltrative anesthetic. Clonidine as an adjuvant for propranolol or bupivacaine has a significant peripheral action in increasing the depth and duration of action on infiltrative cutaneous analgesia.

  1. Extended duration local anesthetic agent in a rat paw model.

    Science.gov (United States)

    Ickowicz, D E; Golovanevski, L; Domb, A J; Weiniger, C F

    2014-07-01

    Encapsulated local anesthetics extend postoperative analgesic effect following site-directed nerve injection; potentially reducing postoperative complications. Our study aim was to investigate efficacy of our improved extended duration formulation - 15% bupivacaine in poly(DL-lactic acid co castor oil) 3:7 synthesized by ring opening polymerization. In vitro, around 70% of bupivacaine was released from the p(DLLA-CO) 3:7 after 10 days. A single injection of the optimal formulation of 15% bupivacaine-polymer or plain (0.5%) bupivacaine (control), was injected via a 22G needle beside the sciatic nerve of Sprague-Dawley rats under anesthesia; followed (in some animals) by a 1cm longitudinal incision through the skin and fascia of the paw area. Behavioral tests for sensory and motor block assessment were done using Hargreave's hot plate score, von Frey filaments and rearing count. The 15% bupivacaine formulation significantly prolonged sensory block duration up to at least 48 h. Following surgery, motor block was observed for 48 h following administration of bupivacaine-polymer formulation and rearing was reduced (returning to baseline after 48 h). No significant differences in mechanical nociceptive response were observed. The optimized bupivacaine-polymer formulation prolonged duration of local anesthesia effect in our animal model up to at least 48 h.

  2. Perbandingan antara Kombinasi Bupivakain 0,125% dan Dexmedetomidin 1 µg/Kgbb dengan Bupivakain 0,125% Melalui Blok Kaudal Terhadap Lama Analgesi Pascaoperasi Hipospadia

    Directory of Open Access Journals (Sweden)

    Sardinata

    2013-04-01

    Full Text Available Caudal blockage is the most frequently used regional anestesia technique in pediatric surgery. Various local anesthetic agents have been frequently used in this technique. Bupivacaine is one of the most used local anesthetics due to its long duration of action. Dexmedetomidin is an α2agonist that is used as adjuvant in lengthening bupivacaine duration when it is administered via caudal blockage. In increasing its effectiveness, the combination of bupivacaine with dexmedetomidin in low concentrationd and low dose can be given. This study was performed to assess the postoperative analgesia duration using caudal blockage between the combined 0.125% bupivacaine-1µg/Kg BW dexmedetomidin and 0.125% bupivacaine solely in pediatric patients having hypospadic surgery. The study was applied to 30 pediatric patients with ASA I and II physical status, and aged 1-6 years that received hypospadic surgery with general anesthesia, to whom caudal blockage applied postoperatively. The patients were divided into two groups. One group (BD group was treated using the combined 0.125% bupivacaine-1 µg/Kg BW dexmedetomidin (0.5 cc/kg BW, the other group (B group was treated with 0.125% bupivacaine (0.5 cc/kb BW as control group. Postoperative analgesia duration was recorded. The data of the study results were assessed using Mann-Whitney test. Postoperative analgesia duration of BD group (863.0 [36.34] minutes was very significantly (p<0.001 longer than that in B group (378.08 [37.87] minutes. The conclusion of this study indicated that the use of combined 0.125% bupivacaine-1 µg/Kg BW dexmedetomidin for caudal blockage as analgetic agent after hypospadic surgery resulted longer analgesia duration than that of 0.125% bupivacaine solely

  3. The effect of 0.5% ropivacaine on epidural blood flow

    DEFF Research Database (Denmark)

    Dahl, J B; Simonsen, L; Mogensen, T;

    1990-01-01

    Twenty patients scheduled for elective abdominal surgery received epidural analgesia with 20 ml 0.5% ropivacaine or 0.5% bupivacaine. Epidural blood flow was measured by an epidural 133Xe clearance technique on the day before surgery (no local anaesthetic) and again 1 h before surgery, 30 min after...... injection of the local anaesthetic during continuous infusion (8 ml/h). Median initial blood flow was 5.0 ml/min and 6.0 ml/min per 100 g tissue in patients receiving ropivacaine and bupivacaine, respectively. After epidural bupivacaine, blood flow increased in 8 of 10 patients to 6.9 ml/min per 100 g...

  4. Malignant ventricular dysrhythmias in a patient with isovaleric acidemia receiving general and local anesthesia for suction lipectomy.

    Science.gov (United States)

    Weinberg, G L; Laurito, C E; Geldner, P; Pygon, B H; Burton, B K

    1997-12-01

    We report the occurrence of severe ventricular arrhythmias in a patient with isovaleric acidemia during general anesthesia for suction lipectomy. The timing of events and character of the ECG changes are most consistent with bupivacaine toxicity after subcutaneous injection of tumescence solution containing this local anesthetic. The patient had previously documented carnitine deficiency, a condition which, we speculate, may lower the threshold for bupivacaine induced cardiotoxicity. We review clinical considerations in isovaleric acidemia and conclude that the use of bupivacaine in these patients probably should be avoided.

  5. A designated centre for people with disabilities operated by Muiríosa Foundation, Westmeath

    LENUS (Irish Health Repository)

    Bahari, Syah

    2012-02-01

    The study is a prospective blinded randomised controlled trial to compare the efficacy of triamcinolone acetonide, bupivacaine or in combination in managing pain after lumbar discectomy. Patients undergoing primary single-level lumbar discectomy were randomised. Triamcinolone acetonide, bupivacaine or in combination was instilled at the nerve root as decompression. Preoperative, day 1 and 6 weeks pain score, 24-h postoperative opiate requirements and duration of inpatient stay were recorded. Data was analysed using Mann-Whitney test for statistical significance. 100 patients were recruited. A significant difference was noted in day one postoperative mean pain score, mean 24-h opiate requirement and mean inpatient stay in the triamcinolone acetonide and bupivacaine group. At 8 weeks postoperatively, no significant differences were seen in the pain score in all groups. Significant postoperative pain reduction and opiate requirements in the first 24 h, and significantly shortened duration of inpatient stay were achieved in the triamcinolone acetonide and bupivacaine group compared with other groups.

  6. In Vitro Effect of Local Anesthetics on Candida albicans Germ Tube Formation

    Directory of Open Access Journals (Sweden)

    Acácio Rodrigues

    1994-01-01

    Full Text Available Objective: This study was planned to clarify the in vitro effect of lidocaine and bupivacaine on germ tube formation by Candida albicans isolates from cases of clinical vaginal candidiasis.

  7. An Acetazolamide Based Multimodal Analgesic Approach Versus Conventional Pain Management in Patients Undergoing Laparoscopic Living Donor Nephrectomy

    Directory of Open Access Journals (Sweden)

    Rupinder Singh

    2009-01-01

    To conclude, a multimodal analgesic approach consisting a combination of orogastric acetazolamide, intraperito-neal saline irrigation and use of bupivacaine in the operated renal fossa, pfannenstiel incision and laparoscopic port sites provide significant reduction in postoperative pain after LDN.

  8. Bupivacaína a 0,15% hipobárica para raquianestesia posterior (dorsal) versus bupivacaína a 0,5% hiperbárica para procedimentos cirúrgicos anorretais em regime ambulatorial Bupivacaína a 0,15% hipobárica para raquianestesia posterior (dorsal) versus bupivacaína a 0,5% hiperbara para procedimientos quirúrgicos anorrectales en régimen ambulatorial Hypobaric 0.15% bupivacaine versus hyperbaric 0.5% bupivacaine for posterior (dorsal) spinal block in outpatient anorectal surgery

    OpenAIRE

    Luiz Eduardo Imbelloni; Eneida Maria Vieira; Gouveia, M.A.; João Gomes Netinho; José Antonio Cordeiro

    2006-01-01

    JUSTIFICATIVA E OBJETIVOS: Estudar baixa dose de bupivacaína hipobárica a 0,15% e hiperbárica a 0,5% em pacientes ambulatoriais para procedimentos cirúrgicos anorretais. MÉTODO: Dois grupos de 50 pacientes, estado físico ASA I e II, submetidos a intervenções cirúrgicas anorretais, em posição de canivete, receberam 6 mg de bupivacaína a 0,15% hipobárica na posição cirúrgica (Grupo 1) ou 6 mg de bupivacaína a 0,5% hiperbárica na posição sentada por cinco minutos, e depois colocados em posição d...

  9. Perbandingan Waktu Awitan dan Lama Kerja Kombinasi Bupivakain 0,5% dan Lidokain 2% dengan Bupivakain 0,5% pada Blokade Infraklavikular untuk Operasi Lengan Bawah

    Directory of Open Access Journals (Sweden)

    Andy Pawana Destiara

    2016-12-01

    Full Text Available The combination of local anesthetic drugs bupivacaine and lidocaine can produce rapid onset and long duration of action. The purpose of this study was to compare the onset and duration of action between 0.5% bupivacaine and 2% lidocaine combination and 0.5% bupivacaine on infraclavicular block for forearm surgery. This study was conducted using a randomized double blind controlled clinical trial on 36 adult patients aged 18–60 years who underwent forearm surgery under infraclavicular block using nerve stimulator guidance in Dr. Hasan Sadikin General Hospital between the period of April to June 2015. Patients were divided into two groups: patients in bupivacaine and lidocaine (BL group and bupivacaine (Bgroup. The statistical analysis were performed using the student’s t-test, chi-square, Fisher’s Exact, Kolmogorov Smirnov, and Mann-Whitney U-test. The onsets of sensory and motor blocks in BL group were 7.1±2 min and 10.9±5.3 min, repectively and B group were 19.8±4.5 min and 29±7.7 min, respectively. The durations of sensory and motor blocks in BL group were 540.9±195.1 min and 445.6±158.9 min and B group were 837.6±376.6 min and 653.9±304.3 min. This study reveals that the combination of 0.5% bupivacaine and 2% lidocaine in infraclavikular block had a faster onset of sensory and motor blocks compared to 0.5% bupivacaine and a shorter duration of action compared to 0.5% bupivacaine.

  10. fek Penambahan Deksametason 5 mg pada Bupivakain 0,5% terhadap Mula dan Lama Kerja Blokade Sensorik Anestesia Epidural untuk Operasi Ortopedi Ekstremitas Bawah

    Directory of Open Access Journals (Sweden)

    Irwan

    2015-08-01

    Full Text Available Lower extremity orthopedic surgery performed with regional epidural anesthesia was still have weakness which is long onset of time. This study was conducted to determine the onset time and duration time of sensory blockade epidural anesthesia between the use of dexamethasone 5 mg addition to 0.5% bupivacaine for lower limb orthophedic surgery. The study was using randomized controlled blind method on 32 ASA I–II patients undergoing lower limb orthopedic surgery under epidural anesthesia. Consecutive sampling and random allocation of block of permutation groups was applied. In group I, dexamethasone 5 mg was added to bupivacaine 0.5% 15 mL while in group II NaCl 1 mL was added to bupivacaine 0.5% 15 mL. The results were statistically tested using t-test and Mann-Whitney test. It was shown that the onset time of sensory blockade was not significantly faster when dexamethasone was added in bupivacaine 0.5%, 13.56 minutes versus 14.31 minutes (p=0.27. The duration time of sensory blockade in dexamethasone in bupivacaine 0.5% group was longer 399.81 minutes, compared to the bupivacaine 0.5% group, 227.43 minutes (p=0.00. In conclusions, the addition of dexamethasone 5 mg to bupivacaine 0.5% 15 mL does not produced faster onset time. However, the duration sensory blockade time is longer than bupivacaine 0,5% 15 mL is used.

  11. Multimodal pain management after arthroscopic surgery

    DEFF Research Database (Denmark)

    Rasmussen, Sten

    Multimodal Pain Management after Arthroscopic Surgery By Sten Rasmussen, M.D. The thesis is based on four randomized controlled trials. The main hypothesis was that multimodal pain treatment provides faster recovery after arthroscopic surgery. NSAID was tested against placebo after knee arthrosco...... after knee and ankle arthroscopy with the use of oral NSAIDs combined with bupivacaine plus morphine or combined with bupivacaine, morphine plus steroid....... ankle arthroscopy. Oral NSAID reduced time to work from 17 to 14 days after knee arthroscopy. Intra-articular treatment with bupivacaine plus morphine and bupivacaine plus morphine plus steroid after arthroscopic knee meniscectomy reduced time to work from 10 to 5 to 3 days. Intraarticular treatment...... with bupivacaine plus morphine and bupivacaine plus morphine plus steroid after diagnostic knee arthroscopy reduced time to work from 10 to 5 to 2 days. Additional analysis revealed that the surgical trauma and the use of tourniquet influenced recovery. The thesis proves a reduction in the time to return to work...

  12. Comparison of the effects of two intrathecal anaesthetic techniques for transurethral prostatectomy on haemodynamic and pulmonary function.

    LENUS (Irish Health Repository)

    Walsh, K H

    2012-02-03

    BACKGROUND AND OBJECTIVE: Transurethral prostatectomy is routinely performed under spinal anaesthesia. This technique can cause hypotension, which is particularly undesirable in the elderly. The objective was to compare spinal anaesthesia for transurethral prostatectomy using hyperbaric bupivacaine 15 mg (control group) and hyperbaric bupivacaine 10 mg (limiting spread by maintaining the upright position for 15 min) and fentanyl 25 microg (fentanyl group) in terms of haemodynamic and pulmonary function. METHODS: Thirty ASA I-III patients were randomly selected and underwent spinal anaesthesia with either hyperbaric bupivacaine 15 mg (immediately positioned supine) or hyperbaric bupivacaine 10 mg (upright for 15 min) and fentanyl 25 microg. RESULTS: The greatest changes in mean arterial pressure (P = 0.9), ephedrine requirements (P = 0.8) and mean maximum change in forced vital capacity (P = 0.5) were similar in both groups. CONCLUSIONS: The addition of fentanyl 25 microg to bupivacaine 10 mg and limiting the spread of the block does not improve either haemodynamic or pulmonary function compared with bupivacaine 15 mg in patients undergoing transurethral prostatectomy.

  13. Treatment of Acute Orofacial Pain with Lower Cervical Intramuscular Bupivacaine Injections:A 1-Year Retrospective Review of 114 Patients%下颈部肌内注射布比卡因治疗急性口颌面疼痛:一年114例回顾性研究

    Institute of Scientific and Technical Information of China (English)

    Larry B.Mellick; Gary A.Mellick; 谭雍慧

    2010-01-01

    目的:介绍下颈椎棘突两侧注射0.5%布比卡因治疗口颌面疼痛的一年临床经验.方法:对2517名出院诊断为口颌面疼痛的急诊科患者,以及771名2003年6月30日~2004年7月1日接受过封闭治疗患者的资料进行了回顾性的数据整理.从以上两个数据库中抽调接受过棘突旁肌内注射布比卡因治疗的成年患者的病例资料,进行回顾分析.口颌面疼痛缓解程度用以下两种方式记录,①按一般临床经验和面部表情图将口颌面疼痛缓解分成4个等级(n=114);②按治疗前后患者在疼痛数字评估量表上选择的数值来评定疼痛缓解程度(n=71).结果:共有118名成年患者接受了下颈椎棘突旁肌内注射布比卡因治疗,4份病例因资料缺失或不全而被剔除.75名患者(66%)疼痛完全或临床缓解,32名患者(28%)疼痛部分缓解,7名患者(6%)没有显著的缓解.总体上,114名患者中有107名(94%)治疗有效,疼痛缓解起效快,许多患者能在5~15min内得到完全的缓解.结论:这是在急诊科使用下颈椎棘突旁肌内注射布比卡因来治疗口颔面疼痛的首次大样本病例报道,证明这种方法可能成为急诊科对于急性口颌面痛的一个新的治疗选择.

  14. Comparison of blocking effect of ropivacaine and bupivacaine on sodium channels of rat dosal root ganglia%罗哌卡因和布比卡因对大鼠背根神经节钠通道阻滞作用的比较

    Institute of Scientific and Technical Information of China (English)

    徐龙河; 姜雨鸽; 张宏

    2006-01-01

    目的:比较局麻药罗哌卡因和布比卡因对大鼠背根神经节(DRG)河豚毒素(TTX)敏感(TTX-S)和TTX不敏感(TTX-R)的钠通道阻滞作用的差别,探讨罗哌卡因麻醉时产生感觉运动分离的可能机制.方法:急性分散大鼠背根神经节细胞,利用全细胞膜片钳技术记录DRG细胞TTX-S和TTX-R钠电流,通过浴槽内给药,观察罗哌卡因和布比卡因对TTX-S和TTX-R钠电流的作用.结果:TTX-S钠电流主要产生于大的DRG细胞,而TTX-R钠电流主要产生于小的DRG细胞;罗哌卡因对TTX-R钠电流的半数抑制浓度(IC50)为 65.7±6.1 μmol·L-1,远低于其对TTX-S钠电流的IC50(246.8±11.2 μmol·L-1,P<0.01);布比卡因对TTX-R和TTX-S钠电流的IC50值基本相同(27.2±6.2 μmol·L-1 vs 29.5±2.9 μmol·L-1,P>0.05).结论:罗哌卡因优先阻滞TTX-R钠通道,对TTX-R钠通道和TTX-S钠通道的选择性阻滞是其硬膜外麻醉时感觉运动分离的原因之一.

  15. 麻醉训练中的模拟教学:布比卡因诱发心跳骤停成功复苏的一例报道与近期模拟训练的联系%Simulation Education in Anesthesia Training: A Case Report of Successful Resuscitation of Bupivacaine-Induced Cardiac Arrest Linked to Recent Simulation Training

    Institute of Scientific and Technical Information of China (English)

    Hugh M. Smith; Adam K. Jacob; Leal G. Segura; John A. Dilger; Laurence C. Torsher; 彭宇

    2009-01-01

    模拟训练正迅速成为麻醉住院医师培训教程中不可或缺的内容.我们报道1例用静脉注射脂肪乳剂成功复苏布比卡因引起的心跳骤停.此病例报告者近期已参加过模拟训练,其中就包括与此病例几乎相同的情节.事后确定,先前的训练影响着下列步骤的执行:迅速发现问题,在高级心脏生命支持的措施下迅速启动特殊治疗以及协调的团队合作.虽然有效复苏和最终恢复的真正原因无法解释,但是此次复苏过程的有效性,包括及时给予脂肪乳剂,证明模拟方法对训练者处理罕见的紧急事件是有用的.

  16. 罗哌卡因、布比卡因、利多卡因的中枢神经系统毒性作用及其对脑c-Fos蛋白表达的影响%The Toxic Actions of Ropivacaine,Bupivacaine,and Lidocaine on Central Nervous System and their Effects on Expression of c-Fos in the Mice Brains

    Institute of Scientific and Technical Information of China (English)

    金小高; 罗爱林

    2004-01-01

    目的:比较相同致惊厥反应率的酰胺类局部麻醉药对中枢神经系统毒性作用的大小及对脑c-Fos蛋白表达的影响.方法:昆明小白鼠(21~24 g)随机分若干组,腹腔快速注射同剂量的局麻药,观察惊厥的反应率,得到3种局麻药的半数致惊厥剂量CD50和半数致死剂量LD50.分别取CD50腹腔快速注射小白鼠,记录惊厥的发生和持续的时间,2 h后灌注取脑,冠状冰冻切片,用免疫组织化学方法检测c-Fos蛋白表达的差异.结果:利多卡因、布比卡因、罗哌卡因的CD50和LD50分别为53.46 mg/kg和153.27 mg/kg、31.16 mg/kg和46.41 mg/kg、47.24 mg/kg和62.74 mg/kg.半数致惊厥剂量的布比卡因和利多卡因引起惊厥的时间和对梨状皮质与杏仁体c-Fos表达的影响之间差异无显著性 (P>0.05),但罗哌卡因则高于另外两种局麻药,且差异有显著性(P布比卡因),但如果一旦发生毒性意外,罗哌卡因导致的惊厥则会更加严重.

  17. THE COMPARISON OF FETAL ALPHA-1-ACID GLYCOPROTEIN CONCENTRATION BETWEEN ROPIVACAINE AND BUPIVACAINE FOR LABOUR PAIN RELIEF%罗哌卡因和布比卡因分娩镇痛中胎儿α1-酸性糖蛋白浓度的比较

    Institute of Scientific and Technical Information of China (English)

    武庆平; 姚尚龙

    2006-01-01

    目的:通过测定脐血中α1-酸性糖蛋白(alpha-1-acid glycoprotein,AAG)浓度,来比较罗哌卡因和布比卡因分娩镇痛中对胎儿的毒性作用.方法:选择42例产前检查估计能从阴道自然分娩的头位、单胎足月初产妇.随机分为三组,A组为罗哌卡因-芬太尼组;B组为布比卡因-芬太尼组;C组为未行分娩镇痛对照组,每组各14例.分娩镇痛采用病人自控硬膜外镇痛(patient-controlledepidural analgesia,PCEA),PCEA剂量为基础注药速率为6ml/h,冲击量均为2ml,锁定时间均为10min.采用"速率散射比浊法"测定脐血中α1-酸性糖蛋白浓度,进行脐血血气分析,进行胎儿的Apgar评分和SpO2检测,视觉模拟镇痛评分法(VAS)评定产妇疼痛程度,用下肢运动神经阻滞评分法(MBS)评定产妇运动神经阻滞程度.结果:两组产妇的镇痛效果无显著差异.罗哌卡因组脐血α1-酸性糖蛋白浓度和pH值明显高于布比卡因组(P<0.05).罗哌卡因组1分钟胎儿Apgar评分和胎儿血氧饱和度明显高于布比卡因组(P<0.05).布比卡因组对运动神经阻滞大于罗哌卡因组.结论:在分娩镇痛时,罗哌卡因对胎儿毒性低于布比卡因.

  18. Update on ropivacaine.

    Science.gov (United States)

    Wang, R D; Dangler, L A; Greengrass, R A

    2001-12-01

    Long-acting local anaesthetics are primarily used in the practice of anaesthesia, particularly in regional anaesthesia and analgesia. Ropivacaine is a new long-acting local anaesthetic that has been the focus of interest because of its increased cardiovascular safety compared with bupivacaine. Other advantages of ropivacaine over bupivacaine include a greater sensorimotor differential block and shorter elimination half-life (t(1/2)), with a lower potential for accumulation. The most important attribute of ropivacaine, however, is its increased margin of safety compared with bupivacaine when given in equal doses. Many post-marketing studies have focused on the comparisons of efficacy in blocks and toxicity profiles of bupivacaine versus ropivacaine. Recent animal toxicity studies confirm the results of original studies showing that ropivacaine has less cardiovascular toxicity than bupivacaine with respect to direct myocardial depression, success of resuscitation and arrhythmogenic potential when given in equal doses. Reduced cardiotoxicity may be a distinct characteristic of ropivacaine. A review of current literature suggests that, at clinically relevant doses, ropivacaine provides the lowest potential risk of cardiotoxicity for inadvertent intravascular injection. Studies are currently under way comparing ropivacaine with levobupivacaine, the latest addition to the group of long-acting local anaesthetics.

  19. Effects of helium-neon laser irradiation and local anesthetics on potassium channels in pond snail neurons.

    Science.gov (United States)

    Ignatov, Yu D; Vislobokov, A I; Vlasov, T D; Kolpakova, M E; Mel'nikov, K N; Petrishchev, I N

    2005-10-01

    Intracellular dialysis and membrane voltage clamping were used to show that He-Ne laser irradiation of a pond snail neuron at a dose of 0.7 x 10(-4) J (power density 1.5 x 10(2) W/m2) increases the amplitude of the potential-dependent slow potassium current, while a dose of 0.7 x 10(-3) J decreases this current. Bupivacaine suppresses the potassium current. Combined application of laser irradiation at a dose of 0.7 x 10(-3) J increased the blocking effect of 10 microM bupivacaine on the slow potassium current, while an irradiation dose of 0.7 x 10(-4) J weakened the effect of bupivacaine.

  20. Epidural volume extension in combined spinal epidural anaesthesia for elective caesarean section: a randomised controlled trial.

    Science.gov (United States)

    Loubert, C; O'Brien, P J; Fernando, R; Walton, N; Philip, S; Addei, T; Columb, M O; Hallworth, S

    2011-05-01

    We investigated the effect of epidural volume extension on spinal blockade in pregnant women undergoing elective caesarean section with a combined spinal-epidural technique. We randomly allocated 90 healthy subjects to three groups to receive spinal hyperbaric bupivacaine 7.5 mg (group B7.5), spinal hyperbaric bupivacaine 7.5 mg immediately followed by epidural volume extension with saline 5 ml (group B7.5-EVE) or spinal hyperbaric bupivacaine 10 mg without epidural volume extension (group B10). We evaluated the height of the block every 5 min for 15 min following the spinal injection. The overall sensory block level increased with time (p epidural volume extension with 5 ml saline as part of a combined spinal epidural technique in term parturients undergoing elective caesarean section.

  1. Ropivacaine

    DEFF Research Database (Denmark)

    Hansen, Tom G

    2004-01-01

    Ropivacaine (Naropin, AstraZeneca) a new long-acting amide local anaesthetic agent, is a pure S-enantiomer, with a high pKa and relatively low-lipid solubility. Since its clinical introduction in 1996, it has been the focus of intense interest because of its increased CNS and cardiovascular safety...... block surgery, and obstetrics and postoperative analgesia. Ropivacaine is virtually identical to bupivacaine in terms of onset, quality and duration of sensory block, but seems to produce less motor block. The lesser toxicity of ropivacaine compared with bupivacaine has been confirmed in numerous animal...... to be a safer local anaesthetic agent than bupivacaine. It seems particularly indicated for major peripheral nerve blocks and obstetrics. Ropivacaine should be considered when regional blocks are used in neonates and young infants. With the current trend in the cost development, ropivacaine will most likely...

  2. EFFECT OF INTRATHECAL CLONIDINE ON DURATION OF SPINAL ANALGESIA

    Directory of Open Access Journals (Sweden)

    Sourabh

    2015-06-01

    Full Text Available BACKGROUND: Clonidine is an α 2 adrenoreceptor agonist that has been shown to effectively prolong the duration of analgesia when administered intrathecally or in the epidural space along with local anaesthetic. AIMS AND OBJECTIVE: This study was designed to evaluate the effect of two different doses of intrathecal clonidine (37.5 μg and 75 μg on the duration of analgesia and side effects produced by hyperbaric bupivacaine 0.5%. MATERIALS AND METHODS : A prospective hospital based, randomized and double blind study. Selected 75 patients who was scheduled for elective below umbilical surgeries were randomly allocated to one of three groups. Group I (n=25, control group received 3ml hyperbaric bupivacaine, Group II (n=25 3ml hyperbar ic bupivacaine + 37.5 μg clonidine and Group III (n=25 3 ml hyperbaric bupivacaine + 75μg clonidine intrathecally. Total volume (4ml remained constant by adding sterile water. Data were analyzed by using SPSS software ver.18. RESULTS: The (mean ±SD dura tion of analgesia was found to be 171.3±6.37 mins in Group I, 217.7±7.01 mins in Group II and 257.1±6.50 mins in Group III (p<0.05. It shows that 37.5  g & 75  g intrathecal clonidine increases the duration of analgesia of 15mg hyperbaric bupivacaine by abo ut 46 mins & 86 mins respectively. The addition of intrathecal clonidine upto 75 μg does not cause any significant major side effect except mild sedation, without an increase in incidence of hypotension, bradycardia and respiratory depression. CONCLUSION: Intrathecal clonidine (37.5  g & 75  g as an adjuvant to hyperbaric bupivacaine 0.5% prolong the duration of analgesia in a dose dependent manner without increase in incidence of significant side effects

  3. COMPARISON OF COMMON CLINICALLY USED LOCAL ANESTHETICS ON ANIMAL MODELS

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    Anthireddy Srinivas

    2012-08-01

    Full Text Available The animal models used in this study were Plexus anesthesia in frogs, Infiltration anesthesia in guinea pigs, Surface anesthesia in rabbits. The drugs were diluted with normal saline. Lignocaine2%: xylocaine hydrochloride injection IP, Bupivacaine 0.5%: Bupivacaine hydrochloride injections IP were prepared. Plexus anesthesia: Frog was pithed and spinal cord was destroyed up to the 3 vertebra. The abdominal pouch was filled with local anesthetic solution. Reflex activity was tested by immersing both feet of the frog every two minutes for not longer than 10 seconds into N/10 Hydrochloric acid. The time was noted. Surface anesthesia: Albino rabbits of either sex weighing 2.5 – 3.0kg ware selected. The conjunctival sac of one eye was held open, thus formed a pouch. 0.5ml of solution of the anesthetic was applied into the conjunctival sac for 30 sec. Infiltration anesthesia: Preparation of guinea pig: Guinea pigs (either sex weighing 250-300grams were used. Lignocaine produced rapid onset of plexus anesthesia in Frogs in comparison to the bupivacaine at concentration of 0.1% & 0.2% which is statistically significant. Bupivacaine is more potent than the lignocaine as a surface anesthetic agent in the Rabbit, where as lignocaine could produce surface anesthesia at concentration of 0.5% or 0.1% or both. Both bupivacaine and lignocaine produced infiltration anesthesia on intradermal injection in guinea pigs but the duration of infiltration anesthesia produced by bupivacaine is more prolonged which is statistically significant in comparison to the lignocaine at all the three concentrations tested i.e. 0.05%, 0.1% & 0.2%.

  4. Co-administration of hyaluronic acid with local anaesthetics shows lower cytotoxicity than local anaesthetic treatment alone in bovine articular chondrocytes

    OpenAIRE

    Onur, T. S.; Sitron, C. S.; Dang, A

    2013-01-01

    Objective To study the effect of hyaluronic acid (HA) on local anaesthetic chondrotoxicity in vitro. Methods Chondrocytes were harvested from bovine femoral condyle cartilage and isolated using collagenase-containing media. At 24 hours after seeding 15 000 cells per well onto a 96-well plate, chondrocytes were treated with media (DMEM/F12 + ITS), PBS, 1:1 lidocaine (2%):PBS, 1:1 bupivacaine (0.5%):PBS, 1:1 lidocaine (2%):HA, 1:1 bupivacaine (0. 5%):HA, or 1:1 HA:PBS for one hour. Following tr...

  5. Combined epidural-spinal opioid-free anaesthesia and analgesia for hysterectomy

    DEFF Research Database (Denmark)

    Callesen, T; Schouenborg, Lars Øland; Nielsen, D;

    1999-01-01

    Postoperative nausea and vomiting (PONV) are major problems after gynaecological surgery. We studied 40 patients undergoing total abdominal hysterectomy, allocated randomly to receive opioid-free epidural-spinal anaesthesia or general anaesthesia with continuous epidural bupivacaine 15 mg h-1...... or continuous bupivacaine 10 mg h-1 with epidural morphine 0.2 mg h-1, respectively, for postoperative analgesia. Nausea, vomiting, pain and bowel function were scored on 4-point scales for 3 days. Patients undergoing general anaesthesia had significantly higher nausea and vomiting scores (P

  6. Enhancement of delayed-rectifier potassium conductance by low concentrations of local anaesthetics in spinal sensory neurones

    OpenAIRE

    Olschewski, Andrea; Wolff, Matthias; Bräu, Michael E; Hempelmann, Gunter; Vogel, Werner; Safronov, Boris V.

    2002-01-01

    Combining the patch-clamp recordings in slice preparation with the ‘entire soma isolation' method we studied action of several local anaesthetics on delayed-rectifier K+ currents in spinal dorsal horn neurones.Bupivacaine, lidocaine and mepivacaine at low concentrations (1–100 μM) enhanced delayed-rectifier K+ current in intact neurones within the spinal cord slice, while exhibiting a partial blocking effect at higher concentrations (>100 μM). In isolated somata 0.1–10 μM bupivacaine enhanced...

  7. Effect of a local anesthetic lozenge in relief of symptoms in burning mouth syndrome

    DEFF Research Database (Denmark)

    Treldal, Charlotte; Jacobsen, C B; Mogensen, Stine;

    2016-01-01

    . Assessment of oral mucosal pain, xerostomia, and taste alterations was performed in a patient diary on a visual analog scale (ranging from 0 to 100 mm) before and after the lozenge was dissolved. RESULTS: The bupivacaine lozenge significantly reduced the burning oral pain (P ...OBJECTIVE: Patients with burning mouth syndrome (BMS) often represent a clinical challenge as available agents for symptomatic treatment are few and often ineffective. The aim was to evaluate the effect of a bupivacaine lozenge on oral mucosal pain, xerostomia, and taste alterations in patients...... of taste disturbances (P taste...

  8. Efeito da adição de clonidina subaracnóidea à bupivacaína hiperbárica e sufentanil para analgesia de parto Efecto de la adición de clonidina subaracnoidea en la bupivacaína hiperbara y sufentanil en la analgesia del parto The effect of adding subarachnoid clonidine to hyperbaric bupivacaine and sufentanil during labor analgesia

    OpenAIRE

    Mônica Maria Siaulys Capel Cardoso; Papa,Fabio V.; Vieira,Roberta F.; Mário M. Kondo; Marcelo Luis Abramides Torres

    2006-01-01

    JUSTIFICATIVA E OBJETIVOS: A adição de clonidina subaracnóidea (um alfa-agonista), prolonga a ação analgésica da combinação do sufentanil e da bupivacaína isobárica em analgesia combinada para o trabalho de parto. O objetivo desse estudo foi comparar a qualidade e a duração de analgesia e a incidência de efeitos colaterais após a adição de clonidina subaracnóidea à bupivacaína hiperbárica e sufentanil em anestesia combinada raqui-peridural para o trabalho de parto. MÉTODO: Foram estudadas 26 ...

  9. Assessment of drug salt release from solutions, suspensions and in situ suspensions using a rotating dialysis cell

    DEFF Research Database (Denmark)

    Parshad, Henrik; Frydenvang, Karla; Liljefors, Tommy

    2003-01-01

    A rotating dialysis cell consisting of a small (10 ml) and a large compartment (1000 ml) was used to study the release of drug salt (bupivacaine 9-anthracene carboxylate) from (i). solutions, (ii). suspensions and (iii). in situ formed suspensions. Initial release experiments from suspensions...

  10. Clonidine as an adjuvant to local anesthetic in supraclavicular brachial plexus block: a randomized, double blinded placebo controlled study

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    Preeti Rustagi

    2016-10-01

    Conclusions: Clonidine 2 and micro;g / kg added to 10 ml of 0.5 % Bupivacaine + 20 ml of 2% lignocaine with adrenaline (1:200000 is a good option for improving the quality and duration of supraclavicular brachial plexus block. [Int J Basic Clin Pharmacol 2016; 5(5.000: 1892-1897

  11. Cardiac Arrest after Local Anaesthetic Toxicity in a Paediatric Patient

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    Liana Maria Torres de Araújo Azi

    2016-01-01

    Full Text Available We report a case of a paediatric patient undergoing urological procedure in which a possible inadvertent intravascular or intraosseous injection of bupivacaine with adrenaline in usual doses caused subsequent cardiac arrest, completely reversed after administration of 20% intravenous lipid emulsion. Early diagnosis of local anaesthetics toxicity and adequate cardiovascular resuscitation manoeuvres contribute to the favourable outcome.

  12. The peri-operative cytokine response in infants and young children following major surgery

    DEFF Research Database (Denmark)

    Hansen, Tom Giedsing; Tønnesen, Else Kirstine; Andersen, J B;

    1998-01-01

    The peri-operative cytokine response was studied in 13 infants and young children undergoing major surgery. All children were anaesthetized with a combined general and epidural anaesthetic technique, followed by post-operative epidural analgesia with bupivacaine and fentanyl. Blood samples were...

  13. Dynamic Changes in Acetylcholine Output in the Medial Striatum during Place Reversal Learning

    Science.gov (United States)

    Ragozzino, Michael E.; Choi, Daniel

    2004-01-01

    The present studies explored the role of the medial striatum in learning when task contingencies change. Experiment 1 examined whether the medial striatum is involved in place reversal learning. Testing occurred in a modified cross-maze across two consecutive sessions. Injections of the local anesthetic, bupivacaine, into the medial striatum, did…

  14. The effect of balanced analgesia on early convalescence after major orthopaedic surgery

    DEFF Research Database (Denmark)

    Møiniche, S; Hjortsø, N C; Hansen, B L;

    1994-01-01

    Forty-two patients scheduled for total knee arthroplasty (n = 20) or hip arthroplasty (n = 22) were randomly allocated to receive either continuous epidural bupivacaine/morphine for 48 h postoperatively plus oral piroxicam, or general anaesthesia followed by a conventional intramuscular opioid...

  15. Prevention of postoperative pain by balanced analgesia

    DEFF Research Database (Denmark)

    Dahl, J B; Rosenberg, J; Dirkes, W E;

    1990-01-01

    Fourteen patients undergoing colorectal surgery received an intraoperative afferent neural block with combined intrathecal and extradural local anaesthetics plus a balanced postoperative low-dose regimen of extradural bupivacaine 10 mg h-1-morphine 0.2 mg h-1 and systemic piroxicam 20 mg/24 h...

  16. The efficacy of epidural ropivacaine 0.75% and levobupivacaine 0.5% in abdominal and lower limb surgeries- a comparative study

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    Kiran Kumar S.

    2016-09-01

    Conclusions: The present study concludes that 0.5% levobupivacaine and 0.75% ropivacaine were clinically similar with respect to sensory block characteristics and duration of analgesia, quality of motor blockade with minimal side effects in both the groups. Both drugs could be better alternatives to bupivacaine in epidural anaesthesia. [Int J Res Med Sci 2016; 4(9.000: 4101-4107

  17. Postural stability after inguinal herniorrhaphy under local infiltration anaesthesia

    DEFF Research Database (Denmark)

    Persson, F; Kristensen, Billy Bjarne; Lund, Claus;

    2001-01-01

    patients listed for elective inguinal herniorrhaphy. INTERVENTIONS: Preoperative and intraoperative infiltration anaesthesia by bupivacaine 2.5 mg/ml (median dose 41 ml, range 30-84 ml), and sedation with midazolam intraoperatively (median dose 3 mg, range 0-10 mg). Lichtenstein tension-free technique...

  18. Magnesium sulfate in femoral nerve block, does postoperative analgesia differ? A comparative study

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    Hossam A. ELShamaa

    2014-04-01

    Conclusion: The current study concluded that the admixture of magnesium to bupivacaine provides a profound prolongation of the femoral nerve block, in addition to a significant decrease in postoperative pain scores and total dose of rescue analgesia, with a longer bearable pain periods in the first postoperative day.

  19. Evaluation of latent period of temperature sensitivity in traditional and unilateral spinal anesthesia

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    Lakhin R.E.

    2015-09-01

    Full Text Available Objective: evaluation of the differences in the level of temperature, sensory and motor blockade during the various techniques of spinal anesthesia. Materials and Methods. Prospectively the randomized study included 70 patients. In the group with conventional spinal anesthesia (n=35 15mg of bupivacaine injected quickly. In the group with unilateral spinal anesthesia (n=35 7.5mg of bupivacaine administered slowly, at a rate of 1 ml per minute. We studied the level of temperature and time, sensory and motor blockade. The data are statistically processed. Results. Reduced thermal sensitivity recorded in an average of 48 seconds as a unilateral spinal anesthesia group and the control group. Subarachnoid administration of 7.5 mg of hyperbaric bupivacaine resulted in the development of a complete motor blockade underlying lower extremity in only 16 patients (45.7%. Conclusion. Using lower dosages of bupivacaine for unilateral spinal anesthesia lowers the threshold concentration of the local anesthetic in the subarachnoid space, resulting in slower motor neuron blockade and it is not total in more than 50% of cases.

  20. Intrathecal sufentanil versus fentanyl for lower limb surgeries - A randomized controlled trial

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    Poonam Motiani

    2011-01-01

    Full Text Available Background:To compare the efficacy and safety of intrathecal sufentanil or fentanyl as adjuvants to hyperbaric bupivacaine in patients undergoing major orthopaedic lower limb surgeries in terms of onset and duration of sensory block, motor block and post-operative pain relief. Patients & Methods: Ninety patients were recruited in this Prospective, randomized double blind study to receive either intrathecal sufentanil 5 μg (Group S, fentanyl 25 μg (Group F or normal saline 0.5 ml (Group C as adjuvants to 15 mg of 0.5% hyperbaric bupivacaine. The onset and duration of sensory and motor block were assessed intraoperatively. The pain scores were assessed postoperatively. Duration of complete and effective analgesia was recorded. The incidence of side effects such as nausea, vomiting, pruritus, shivering and PDPH was recorded. Results: The Demographic data, hemodynamic and respiratory parameters were comparable in the three groups. There was a significantly earlier onset and prolonged duration of sensory block in the sufentanil and fentanyl groups. The duration of complete and effective analgesia were also significantly prolonged in the fentanyl and sufentanil groups. Pruritus was noticed in the study groups (Groups S&F. Conclusions: Intrathecal sufentanil (5 μg and fentanyl (25 μg, as adjuvants lead to an earlier onset and prolonged duration of sensory block. The duration of effective analgesia with intrathecal sufentanil and fentanyl as adjuvants to hyperbaric bupivacaine is longer than that of bupivacaine alone.

  1. Investigation of some factors affecting the sensory level of spinal anesthesia: position, baricity, temperature, needle direction and speed of injection

    NARCIS (Netherlands)

    R. Stienstra

    1990-01-01

    textabstractThe purpose of the studies to be presented was to investigate different factors influencing spinal anesthesia with bupivacaine 0.5 %. More specifically, the first study investigated the differences in intrathecal distribution as measured by the maximum sensory level of blockade between t

  2. Laser Induced Breakdown Spectroscopy (LIBS)

    Science.gov (United States)

    2010-03-31

    depositors favored large denominations causing the smaller denominations to become essentially worthless and obsolete. With the Coinage Act of February...Thallium 201 Hydrogen cyanide (AC) FUNGI Thorium 232 Cyanogen chloride (CK) Aflatoxin Lead 210 Arsine (SA) Bacillus Sodium 22...fuel oil ]. Bromazepam (PIM 281) Aromatic nitro-compound explosive mixtures. Brotizolam (PIM 919) Azide explosives. Bupivacaine (PIM

  3. The role of peripheral afferents in persistent inguinal postherniorrhaphy pain

    DEFF Research Database (Denmark)

    Wijayasinghe, N; Ringsted, T K; Bischoff, J M

    2016-01-01

    was performed in 14 PIPP-patients and six healthy volunteers. All participated in two sessions, seven days apart, receiving 10 ml of 0.25% bupivacaine or normal saline via an ultrasound-guided fascial plane block at the TP. The TP-area was used for pain assessments (at rest, on movement, with 100 kPa pressure......-algometry) and quantitative sensory testing (pressure pain thresholds, thermal detection/pain thresholds, supra-threshold heat perception), before and after the TP-blockade. RESULTS: The median (95% CI) reduction in pain was 63% (44.1 to 73.6%) after bupivacaine compared with 36% (11.6 to 49.7%; P=0.003) after placebo....... Significant increases in cool detection (P=0.01) and pressure pain thresholds (P=0.009) with decreases in supra-threshold heat pain perception (P=0.003) were seen after bupivacaine only. In four out of six volunteers, increased thermal and evoked-pain thresholds after bupivacaine compared with placebo...

  4. Multimodal analgesic treatment in video-assisted thoracic surgery lobectomy using an intraoperative intercostal catheter

    DEFF Research Database (Denmark)

    Wildgaard, Kim; Petersen, Rene H; Hansen, Henrik J;

    2012-01-01

    . METHODS: Prospective observational cohort. Forty-eight consecutive patients received a standardized regimen consisting of paracetamol, non-steroidal anti-inflammatory drug and gabapentin. Further, surgeons performed a single-shot paravertebral block (PVB) at five levels (15 ml of 0.5% bupivacaine...

  5. Perbandingan Analgesia Epidural Menggunakan Bupivakain 0,125% dengan Kombinasi Bupivakain 0,0625% dan Fentanil 2 μg/mL terhadap Nyeri dan Blok Motorik pada Persalinan Normal

    Directory of Open Access Journals (Sweden)

    Oktofina K. Mose

    2015-03-01

    Full Text Available Epidural analgesia became the gold standard to facilitate normal labor without pain. The purpose of this study was to compare bupivacaine 0.125% versus bupivacaine 0.0625% + fentanyl 2 μg/mL epidural analgesia in the reduction of pain during labor as measured by the numeric rating scale (NRS and motor block was assessed using the bromage score. A randomized double blind controlled clinical trial was conducted on 34 primigravida parturien with ASA physical status II planned for vaginal birth at delivery in delivery room Dr. Hasan Sadikin Hospital-Bandung within December 2011–June 2012. Subjects were randomly assigned into two groups. The research data were analyzed using of the chi-square and independent ttest with 95% confidence level and considered significant when p0.05. Bromage score B vs BF group significantly different with p value <0.05 at 90 minutes. This study concluded that the combination of 0.0625% bupivacaine + fentanyl 2 μg/mL produce analgesia similar to that provided by infusion of 0.125% bupivacaine and reduce the incidence of motor block during labor.

  6. The effect of loco-regional anaesthesia on motor activity induced by direct stimulation of the sciatic nerve in dogs.

    Science.gov (United States)

    Murdoch, A P; Michou, J N

    2016-03-01

    A prospective, randomised, blinded, case-controlled clinical study was designed using client-owned dogs undergoing unilateral pelvic limb orthopaedic surgery, to determine the effect on induced motor activity by electrical stimulation of the sciatic nerve distal to the site of local anaesthetic administration. Dogs were administered 0.5% bupivacaine either extradurally or via a femoral and transgluteal sciatic electrolocation-guided nerve block prior to pelvic limb surgery. Motor response to electrical stimulation of branches of the sciatic nerve was tested and the minimum current required to induce muscle twitch was recorded prior to bupivacaine administration. Provided sensory blockade had been deemed successful intraoperatively, testing was repeated postoperatively, with each dog acting as its own control. Paired t-tests were performed to compare pre- and postoperative minimum currents. Eleven dogs administered extradural and 11 dogs administered femoral and sciatic perineural bupivacaine were eligible for post-operative testing. All dogs displayed normal motor response to electrical stimulation of the sciatic nerve at both sites tested before and after bupivacaine administration. There was no significant difference in the minimum current required to induce muscle twitch between pre- and post-operative testing (P = 0.31 sciatic site, P = 0.36 peroneal site), nor between the two groups using different loco-regional anaesthetic techniques (minimum P = 0.13). This study shows that stimulation of the sciatic nerve distal to the site of bupivacaine administration induces motor activity, despite adequate sensory blockade. This is relevant in surgical cases where mechanical stimulation of the sciatic nerve might be expected and needs to be recognised to avoid postoperative neurapraxia.

  7. Transdermal nitroglycerine enhances postoperative analgesia of intrathecal neostigmine following abdominal hysterectomies

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    Fareed Ahmed

    2010-01-01

    Full Text Available This study was carried out to assess the effect of nitroglycerine (transdermal on intrathecal neostigmine with bupivacaine on postoperative analgesia and note the incidence of adverse effects, if any. After taking informed consent, 120 patients of ASA Grade I and II were systematically randomised into four groups of 30 each. Patients were premedicated with midazolam 0.05 mg/kg intravenously and hydration with Ringer′s lactate solution 10ml/kg preoperatively in the holding room. Group I patients received Intrathecal injection of 15 mg bupivacaine with 1ml of normal saline and transdermal placebo patch. Group II patients received Intrathecal injection of 15 mg bupivacaine with 5 mcg of neostigmine and transdermal placebo patch. Group III patients received Intrathecal injection of 15 mg bupivacaine with 1ml of normal saline with transdermal nitroglycerine patch (5 mg/24 hours. Group IV patients received Intrathecal injection of 15 mg bupivacaine with 5mcg of neostigmine and transdermal nitroglycerine patch (5 mg/24 hours, applied on a non anaesthetised area after 20 minutes. Groups were demographically similar and did not differ in intraoperative characteristics like sensory block, motor block, haemodynamic parameters and SpO 2 . The mean duration of analgesia was 202.17 minutes, 407.20 minutes, 207.53 minutes and 581.63 minutes in control group (I, neostigmine group (II, nitroglycerine group (III and nitroglycerine neostigmine group (IV respectively (P< 0.01. To conclude, our results show that transdermal nitroglycerine itself does not show any analgesic potential but it enhances the analgesic potential of intrathecal neostigmine.

  8. In vitro exposure of human fibroblasts to local anaesthetics impairs cell growth

    Science.gov (United States)

    Fedder, C; Beck-Schimmer, B; Aguirre, J; Hasler, M; Roth-Z'graggen, B; Urner, M; Kalberer, S; Schlicker, A; Votta-Velis, G; Bonvini, J M; Graetz, K; Borgeat, A

    2010-01-01

    Lidocaine, bupivacaine or ropivacaine are used routinely to manage perioperative pain. Sparse data exist evaluating the effects of local anaesthetics (LA) on fibroblasts, which are involved actively in wound healing. Therefore, we investigated the effects of the three LA to assess the survival, viability and proliferation rate of fibroblasts. Human fibroblasts were exposed to 0·3 mg/ml and 0·6 mg/ml of each LA for 2 days, followed by incubation with normal medium for another 1, 4 or 7 days (group 1). Alternatively, cells were incubated permanently with LA for 3, 6 or 9 days (group 2). Live cell count was assessed using trypan blue staining. Viability was measured by the tetrazolium bromide assay. Proliferation tests were performed with the help of the colorimetric bromodeoxyuridine assay. Production of reactive oxygen species (ROS) was determined, measuring the oxidation of non-fluorescent-2,7′-dichlorofluorescin. Treatment of cells with the three LA showed a concentration-dependent decrease of live cells, mitochondrial activity and proliferation rate. Group arrangement played a significant role for cell count and proliferation, while exposure time influenced viability. Among the analysed LA, bupivacaine showed the most severe cytotoxic effects. Increased production of ROS correlated with decreased viability of fibroblasts in lidocaine- and bupivacaine-exposed cells, but not upon stimulation with ropivacaine. This study shows a concentration-dependent cytotoxic effect of lidocaine, bupivacaine and ropivacaine on fibroblasts in vitro, with more pronounced effects after continuous incubation. A possible mechanism of cell impairment could be triggered by production of ROS upon stimulation with lidocaine and bupivacaine. PMID:20819090

  9. COMPARISON OF PATIENT CONTROLLED EPIDURAL ANALGESIA WITH CONTINUOUS EPIDURAL INFUSION FOR LABOUR ANALGESIA

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    Sumaiah Tahseen

    2016-07-01

    Full Text Available We conducted a study to compare the efficacy and safety of Patient Controlled Epidural Analgesia (PCEA with that of Continuous Infusion of Epidural Analgesia (CIEA for maintenance of labour analgesia and evaluated the quality of analgesia and obstetric and safety outcomes. METHODS The study was a hospital-based prospective, randomised control trial on 80 parturients who had a normal antenatal period. Each parturient received 500-1000 mL lactated ringer solution Intravenously (IV prior to initiating epidural blockade. Epidural catheter placement was performed in a standard manner and all patients received an initial dose of 8-10 mL bupivacaine 0.25%. Parturients self-administered 0.125% bupivacaine with fentanyl 2.5 µg/mL using PCA pumps programmed as follows: 4 mL bolus with a 20 mins Lockout Interval (LI. Group B received CIEA of 8 mL 0.125% bupivacaine with fentanyl 2.5/mL. Hourly assessments included: VAS scores for pain and satisfaction, sensory and motor block, analgesic supplements, bupivacaine and fentanyl consumption. RESULTS Data from 80 patients showed no differences among groups in pain relief. Maternal satisfaction was greater in PCEA group. Anaesthetic interventions by way of supplemental doses of Bupivacaine and Fentanyl in the PCEA group were minimal (4 and 2 vs 25 and 12 P <0.001 compared to CEI group. PCEA group received less local anaesthetic (5.2 vs 9.4 p <0.001 and few patients in PCEA group had motor weakness compared to CEI group (6 vs 17 p <0.05. Both methods were safe for mother and newborn. CONCLUSION Patients who received PCEA required less anaesthetic interventions, required lower doses of local anaesthetic, fentanyl and have less motor weakness than those who received CEI.

  10. Bilateral Continuous Quadratus Lumborum Block for Acute Postoperative Abdominal Pain as a Rescue After Opioid-Induced Respiratory Depression.

    Science.gov (United States)

    Shaaban, Mohamed; Esa, Wael Ali Sakr; Maheshwari, Kamal; Elsharkawy, Hesham; Soliman, Loran Mounir

    2015-10-01

    We present a case of acute postoperative abdominal pain after proctosigmoidectomy and colorectal anastomosis that was treated by bilateral continuous quadratus lumborum block. The block was performed in the lateral position under ultrasound guidance with a 15-mL bolus of 0.5% bupivacaine injected anterior to the quadratus lumborum muscle followed by bilateral catheter placement. Each catheter received a continuous infusion of 0.1% bupivacaine at 8 mL/h and an on-demand bolus 5 mL every 30 minutes. Sensory level was confirmed by insensitivity to cold from T7 through T12. The block was devoid of hemodynamic side effects or motor weakness. This case demonstrates that bilateral continuous quadratus lumborum catheters can provide extended postoperative pain control.

  11. INTRAOCULAR PRESSURE, MEAN ARTERIAL BLOOD PRESSURE AND PUPILLARY DIAMETER IN RABBITS ( (Oryctolagus cuniculus SUBJECTED TO RETROBULBAR BLOCK WITH DIFFERENT ANESTHETIC PROTOCOLS

    Directory of Open Access Journals (Sweden)

    Renata Maria Monção da Silva

    2015-10-01

    Full Text Available The aim of this study was to evaluate four protocols of loco regional anesthesia for ophthalmic procedures that could provide safety and life support, in addition to maintain intraocular pressure stable, with eye centralization and eyelid akinesia. 20 New Zealand rabbits were used to perform local anesthesia by retrobulbar block with four protocols: 2% lidocaine with epinephrine, 2% lidocaine without epinephrine associated with tramadol, 1% ropivacaine and bupivacaine 0.5 %. Each animal received an anesthetic volume of 1 mL. All anesthetic protocols used promoted eyelid akinesia and centralization of the eye during the assessment period. The retrobulbar block with the proposed anesthetic protocols proved to be feasible and safe for the maintenance of intraocular pressure, invasive blood pressure and pupillary diameter and can be used in intraocular surgeries, respecting the time of action of each anesthetic. All protocols showed an excellent blockage action but bupivacaine promoted the highest pupil diameter compared to the other drugs tested.

  12. Comparison of preoperative infraorbital block with peri-incisional infiltration for postoperative pain relief in cleft lip surgeries

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    Gaonkar V

    2004-01-01

    Full Text Available In this prospective, randomized study, children undergoing cleft lip surgery were either given infra-orbital nerve block (n=25 or peri-incisional infiltration (n=25 pre-operatively with 0.25% bupivacaine in 1:2,00,000 adrenaline. The overall course of anesthesia in both the groups was smooth, with excellent hemodynamic stability, indicating better pain relief during the intra-operative period. The concentration of the anesthetic agent required was reduced and recovery from anesthesia was rapid and complete. There was excellent postoperative analgesia. The children were calm and comfortable postoperatively. We conclude that infra-orbital nerve block with 0.25% bupivacaine with adrenaline provides more prolonged analgesia than peri-incisional infiltration in cleft lip repair. Infra-orbital block given by modified approach is easy to perform and free of side-effects.

  13. Combined Spinal Epdiural Anaesthesia: Single Space Technique

    Directory of Open Access Journals (Sweden)

    Khairat Mohd, Shigufta Qazi, Showkat Hussain

    2005-10-01

    Full Text Available A study of single space combined spinal epidural (CSE block was carried out in 30 patients forlower extremity orthopaedic surgery. Hyperbaric bupivacaine (0.5% was used for subarachanoidblock and (0.25% isobaric bupivacaine was given through epidural catheter for “top-up” doses tofacilitate surgery and for postoperative analgesia. Operative conditions were described as excellentin 73.33% patients, good in 23.33% patients and fair 3.33% patients. Similarly post operativeanalgesia was excellent in 70%, good in 26.66% and fair in 3.33% cases. Intra operative complicationslike hypotension < 80mm Hg occurred in 3.33% patients and < 90 mmHg in 10% patients. No postspinal headache or neurological complications were seen. CSE anaesthesia appears to combine thereliability of spinal and the flexibility of epidural block while their drawbacks are minimized.

  14. Epidural top-up solutions for emergency caesarean section: a comparison of preparation times.

    Science.gov (United States)

    Lucas, D N; Borra, P J; Yentis, S M

    2000-04-01

    We compared the preparation times of three solutions commonly used for epidural top-up for emergency Caesarean section. Twenty-two anaesthetists were asked to prepare fresh solutions in random order as quickly as possible: 0.5% bupivacaine 20 ml (B); 2% lidocaine 20 ml with 1:200,000 epinephrine (LE); and 0.5% bupivacaine 10 ml and 2% lidocaine 10 ml with 1:200,000 epinephrine and 8.4% sodium bicarbonate 2 ml (BLEB). Preparation times for B were approximately half of those for LE, which in turn were approximately half of those for BLEB (P = 0.0001). If local anaesthetic solutions with additives such as epinephrine or bicarbonate are prepared just before emergency Caesarean section, any possible reduction in onset time that they might afford may be offset by the additional preparation time required.

  15. CANCER PAIN MANAGEMENT: ROLE OF INTRATHECAL ALCOHOL: A CASE REPORT

    Directory of Open Access Journals (Sweden)

    Upendra Singh

    2015-02-01

    Full Text Available A 34 year old lady was found to be in acute pain due to metastatic phaeochromocytoma following involvement of L5 , S1 & S2 vertebrae. She was treated with series of MIBG scanning and ablation and surgical option was refused by the patient. She was suffering from rapidly increasing radicular pain of the lower limbs which was being managed with oral and injectable opioids. The team of doctors treating her decided to give epidural opioids and bupivacaine initi ally but the total dose of the drug and frequency was found to be gradually increased. Therefore , continous administration of intathecal opiods and bupivacaine was given but the same problem occured after a few weeks and pain relief was minimal. Ultimately intrathecal absolute alcohol was given as there were no more options left. The patient had dramatic pain relief till her death.

  16. Convulsion due to levobupivacaine in axillary brachial plexus block: Case report

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    Cevdet Düger

    2013-06-01

    Full Text Available Axillary brachial plexus block is an effective method of anaesthesia for the surgeries performed on the hand, forearm and distal third of the arm. However it has the risk of serious complications such as cardiovascular and central nervous system toxicity. Levobupivacaine is a long acting amide local anaesthetic used for epidural, caudal, spinal, infiltration and peripheral nerve blocks. Levobupivacaine is the S (- isomer of racemic bupivacaine and has a lower risk of cardiovascular, central nervous system toxicity than bupivacaine. However central system toxicity cases due to absorption of the drug into the systemic circulation has been reported. Here, we report a case having no vascular puncture during axillary brachial plexus block performance but developing convulsion due to levobupivacain after the intervention.

  17. [Caudal and spinal anesthesia in sub-umbilical surgery in children. Apropos of 1875 cases].

    Science.gov (United States)

    Aguemon, A R; Terrier, G; Lansade, A; Favereau, J P; Nathan, N; Feiss, P

    1996-01-01

    Caudal and spinal anaesthesia are two techniques widely used in European children. The aim of this retrospective study was to evaluate the applicability of this practice in developing countries. The study concerned 1875 children, 1 day to 17 years old. isobaric 0.5% bupivacaine was used for spinal anaesthesia (n = 730) and mixture a of 1% lidocaine-0.25% bupivacaine with epinephrine 1/200,000 for caudal anaesthesia (n = 1,145). Spinal anaesthesia was performed in neonates and infants (< 3 years) and caudal anaesthesia in children (aged 14 days to 17 years) undergoing urological and lower extremity surgery. No variation of heart rate, blood pressure or blood oxygen saturation (SpO2) were observed during surgery. Failure of the technique was less than 1%. These two regional anaesthesia techniques are easy to perform and are inexpensive. This is advantageous for developing countries.

  18. Anesthetic considerations in a patient of autosomal dominant polycystic kidney disease on hemodialysis for emergency cesarean section

    Directory of Open Access Journals (Sweden)

    Sarita D Fernandes

    2011-01-01

    Full Text Available Renal disease, either preexisting or occurring during gestation may impair maternal and fetal health. A 35-year-old primigravida with autosomal dominant polycystic kidney disease on hemodialysis was scheduled for emergency cesarean section. She was managed successfully with low-dose intrathecal bupivacaine and fentanyl. In the case of pregnancy in such a patient, early involvement of the nephrologists along with the obstetrician can improve maternal and fetal outcome.

  19. Depleting Glycine and Sarcosine in Prostate Cancer Cells as a New Treatment for Advanced Prostate Cancer

    Science.gov (United States)

    2015-04-01

    Haasters et al48 has reported that 0.5% bupivacaine has cytotoxic effects on human tendon stem cell/progenitor cells, while morphine had no...ropivacaine, and morphine : comparison of toxicity on human hamstring-derived stem/ progenitor cells. Knee Surg Sports Traumatol Arthrosc. 2011;19(12): 2138...required in mice for lamination of the hippocampus but not the neocortex. J. Neurosci. 2002, 22, 7548–7557. © 2014 by the authors; licensee MDPI

  20. Conformation and kinetic characteristics of interactions between local anesthetics and aqueous solutions of hydroxypropylmethylcellulose.

    Science.gov (United States)

    Galenko-Yaroshevskii, A P; Varlashkina, I A; Takhchidi, Kh P; Malyugin, B E; Dukhanin, A S

    2007-05-01

    Conformation and kinetic characteristics of the interactions of local anesthetics lidocaine (xycaine), tetracaine (dicaine), bupivacaine, and new RU-1117 compound with proven anesthetic activity with Visiton (1% hydroxypropylmethylcellulose in phosphate buffer) were studied. It was found that complex formation between the local anesthetics and hydroxypropylmethylcellulose is a time-dependent reversible process. The equilibrium is attained within 2.5-8.0 h and depends on the chemical nature of local anesthetic.

  1. Acute physiological responses to castration-related pain in piglets: the effect of two local anesthetics with or without meloxicam.

    Science.gov (United States)

    Bonastre, C; Mitjana, O; Tejedor, M T; Calavia, M; Yuste, A G; Úbeda, J L; Falceto, M V

    2016-09-01

    Methods to reduce castration-related pain in piglets are still issues of concern and interest for authorities and producers. Our objectives were to estimate the effectiveness of two protocols of local anesthesia (lidocaine and the combination of lidocaine+bupivacaine) as well as the use of meloxicam as a postoperative analgesic in alleviating castration-related pain, measured by acute physiological responses. Eight groups (15 piglets/group) were included in the study: (1) castration without anesthesia or analgesia, without meloxicam (TRAD WITHOUT), (2) castration without anesthesia or analgesia, but with meloxicam (TRAD WITH), (3) handling without meloxicam (SHAM WITHOUT), (4) handling with meloxicam (SHAM WITH), (5) castration after local anesthesia with lidocaine but without meloxicam (LIDO WITHOUT), (6) castration after local anesthesia with lidocaine and meloxicam (LIDO WITH), (7) castration after local anesthesia with lidocaine+bupivacaine without meloxicam (LIDO+BUPI WITHOUT), (8) castration after local anesthesia with lidocaine+bupivacaine and meloxicam (LIDO+BUPI WITH). Acute physiological responses measured included skin surface temperature and serum glucose and cortisol concentrations. On days 4 and 11 post-castration BW was recorded and average daily gain was calculated over this period. Furthermore, piglet mortality was recorded over the 11-day post-castration period. Administration of local anesthetic or meloxicam did not prevent the decrease in skin surface temperature associated with castration. Lidocaine reduced the increase in glucose concentration associated with castration. For castrated pigs, the joint use of lidocaine and meloxicam caused a significant decrease in cortisol concentration; the combination of intratesticular lidocaine and bupivacaine did not seem to be more effective than lidocaine alone. No effect of treatments on mortality and growth were detected.

  2. Comparison of interscalene brachial plexus block and intra-articular local anesthetic administration on postoperative pain management in arthroscopic shoulder surgery

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    Recep Aksu

    2015-06-01

    Full Text Available BACKGROUND AND OBJECTIVES: In this study, the aim was to compare postoperative analgesia effects of the administration of ultrasound-guided interscalene brachial plexus block and intra-articular bupivacaine carried out with bupivacaine. METHODS: In the first group of patients 20 mL 0.25% bupivacaine and ultrasound-guided interscalene brachial plexus block (ISPB were applied, while 20 mL 0.25% bupivacaine was given via intra-articular (IA administration to the second group patients after surgery. Patients in the third group were considered the control group and no block was performed. Patient-controlled analgesia (PCA with morphine was used in all three groups for postoperative analgesia. RESULTS: In the ISPB group, morphine consumption in the periods between 0-4, 6-12 and 12-24 postoperative hours and total consumption within 24 h was lower than in the other two groups. Morphine consumption in the IA group was lower than in the control group in the period from 0 to 6 h and the same was true for total morphine consumption in 24 h. Postoperative VASr scores in the ISPB group were lower than both of the other groups in the first 2 h and lower than the control group in the 4th and 6th hours (p < 0.05. In the IA group, VASr and VASm scores in the 2nd, 4th and 6th hours were lower than in the control group (p < 0.05. CONCLUSION: Interscalene brachial plexus block was found to be more effective than intra-articular local anesthetic injection for postoperative analgesia.

  3. [Effectiveness of sympathetic block using various technics].

    Science.gov (United States)

    Weissenberg, W

    1987-07-01

    Blocking of sympathetic conduction aims at permanent or temporary elimination of those pain pathways conducted by the sympathetic nervous system. In order to provide an objective evaluation of sufficient blocking effect, earlier inquiries referred to parameters such as: (1) observation of clinical signs such as Horner's syndrome, Guttman's sign, anhidrosis, extended venous filling; (2) difference in skin temperature of at least 1.5 degrees C between blocked and unblocked side; (3) increase in amplitude of the pulse wave; and (4) depression of the psychogalvanic reflex (PGR) on the blocked side (Fig. 1). In clinical practice, these control parameters are effective because they are time-saving, technically simple, and highly evidential. Further parameters for evaluating sympathetic blockade are examination of hydrosis by means of color indicators such as bromocresol and ninhydrin, oscillometry, and plethysmography. The effectiveness of sympathetic blockade after stellate ganglion and sympathetic trunk blocks has been verified by various authors. In a clinical study, 16 patients were divided into four groups in order to test the effectiveness of sympathetic blockade after spinal anesthesia with 3 ml 0.75% bupivacaine (group I) and 4 ml 0.75% bupivacaine (group II) and after peridural anesthesia with 15 ml 0.75% bupivacaine (group III) and 20 ml 0.75% bupivacaine (group IV) by means of temperature difference, response of pulse wave amplitude and PGR between blocked lower and unblocked upper extremity, and sensory levels of block. The patients were classified as ASA I and II; their ages varied from 20 to 63 years.(ABSTRACT TRUNCATED AT 250 WORDS)

  4. Dexmedetomidine as an additive to local anesthetics compared with intravenous dexmedetomidine in peribulbar block for cataract surgery

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    A M Abdelhamid

    2016-01-01

    Full Text Available Background: No studies compared parenteral dexmedetomidine with its use as an adjuvant to ophthalmic block. We compared between adding dexmedetomidine to bupivacaine in peribulbar block and intravenous (IV dexmedetomidine during peribulbar block for cataract surgery. Materials and Methods: A prospective, randomized, double-blind study on 90 patients for cataract surgery under peribulbar anesthesia. Study included three groups; all patients received 10 ml of peribulbar anesthesia and IV infusion of drugs as follows: Group I: Received a mixture of bupivacaine 0.5% (4.5 ml + lidocaine 2% (4.5 ml + normal saline (1 ml + 150 IU hyaluronidase + IV infusion of normal saline, Group II: Received mixture of bupivacaine 0.5% (4.5 ml + lidocaine 2% (4.5 ml + dexmedetomidine 50 μg (1 ml +150 IU hyaluronidase + IV infusion of normal saline and Group III: Received mixture of bupivacaine 0.5% (4.5 ml + lidocaine 2% (4.5 ml + normal saline (1 ml +150 IU hyaluronidase + IV dexmedetomidine 1 μg/kg over 10 min; followed by 0.4 μg/kg/h IV infusion. We recorded onset, duration of block, Ramsay Sedation Score, intra-ocular pressure (IOP, hemodynamics, and adverse effects. Results: There was a significant decrease in the onset of action and increase in the duration of block in Group II as compared with the Group I and Group III. Mean Ramsay Sedation Score was higher in Group III. The IOP showed a significant decrease in Group II and Group III 10 min after injection (P < 0.01. Heart rate showed a significant decrease in Group III in comparison with the two other groups (P < 0.05. Only two patients in Group III developed bradycardia. Conclusion: Dexmedetomidine as an additive shortens onset time, prolong block durations and significantly decreases the IOP with minimal side effects. IV dexmedetomidine, in addition, produces intra-operative sedation with hemodynamic stability.

  5. Epidural Analgesia in the Postoperative Period

    Science.gov (United States)

    2001-10-01

    epidurally. They are opiods and local anesthetics. The pharmacokinetics and pharmacodynamics of each class are different, and they may act...overall pharmacodynamics of the drug. Epidural Opioids Brown (2000) states that opioids are one class of drug that may be used for epidural analgesia...morphine with lidocaine or bupivacaine with the effects of these medications when administered alone in mice. They used various tests to measure

  6. A COMPARATIVE EVALUATION OF INTRAVENOUS DEXMEDETOMIDINE AND CLONIDINE AS PREMEDIC ATION FOR PROLONGATION OF BUPIVA CAINE SUBARACHNOID BLOCK FOR LOWER LIMB ORTHOPAEDIC SURGERY

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    Chavi

    2015-06-01

    Full Text Available BACKGROUND : Addition of α2 adrenergic agonists with local anaesthetics in bupivacaine spinal anaesthesia prolongs the duration of sensory and motor blockade and postoperative analgesia with minimal haemod ynamic alterations. AIM AND OBJECTIVES: To compare and evaluate the efficacy of intravenous dexmedetomidine and clonidine as premedication on subarachnoid blockade duration, postoperative analgesia, and sedation score in patients undergoing lower limb orthopaedic surgeries in bupivacaine (0.5% heavy intrathecal block. MATERIALS AND METHOD S: We carried out a prospective, randomized, double blind study in which 60 patients of ASA status I or II, scheduled for orthopaedic lower limb surgery under spinal a naesthesia, were randomly allocated into two groups of 30 each group A and group B. Group A received dexmedetomidine 0.5μg/kg IV and group B received clonidine 1μg/kg in 10 ml of normal saline intravenously as premedication over 10 min., before subarachnoi d blockade with 3.0 ml. of 0.5% hyperbaric bupivacaine. Onset time and regression times of both sensory and motor blockade, haemodynamic parameters were recorded. Duration of postoperative analgesia and sedation score with adverse effects were also recorde d. RESULTS: The sensory block level was higher (T5 - T7 and earlier in onset (1.81±1.75min. in dexmedetomidine group than clonidine with level (T6 - T8 and onset (2.56±1.62min.. Dexmedetomidine also increased the onset (3.54±3.07min. and duration (265.45± 41.50min. of motor block achieved as compared to clonidine. The Ramsay sedation score was also greater in dexmedetomidine group than clonidine group (P<0.0001. CONCLUSION: Single dose of premedication with intravenous dexmedetomidine is better than intrav enous clonidine during bupivacaine spinal anaesthesia in orthopaedic lower limb surgeries for prolongation of sensory and motor blockade.

  7. Safe spinal anesthesia in a woman with chronic renal failure and placenta previa

    OpenAIRE

    2010-01-01

    Beyazit ZencirciKahramanmaras, TurkeyBackground: Chronic renal failure is strongly associated with poor pregnancy outcome. Women dependent on hemodialysis before conception rarely achieve a successful live birth.Case presentation: A 31-year-old multiparous Turkish woman was scheduled for cesarean section under spinal anesthesia at 37 weeks and five days’ gestation because of hemorrhage due to secondary placenta previa. Spinal anesthesia with 8 mg of hyperbaric bupivacaine was succes...

  8. Comparison of preoperative infraorbital block with peri-incisional infiltration for postoperative pain relief in cleft lip surgeries

    OpenAIRE

    Gaonkar V; Daftary Swati

    2004-01-01

    In this prospective, randomized study, children undergoing cleft lip surgery were either given infra-orbital nerve block (n=25) or peri-incisional infiltration (n=25) pre-operatively with 0.25% bupivacaine in 1:2,00,000 adrenaline. The overall course of anesthesia in both the groups was smooth, with excellent hemodynamic stability, indicating better pain relief during the intra-operative period. The concentration of the anesthetic agent required was reduced and recovery from anesthesia...

  9. Patient Controlled Epidural Analgesia during Labour: Effect of Addition of Background Infusion on Quality of Analgesia & Maternal Satisfaction

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    Uma Srivastava

    2009-01-01

    Full Text Available Patient controlled epidural analgesia (PCEA is a well established technique for pain relief during labor. But the inclusion of continuous background infusion to PCEA is controversial. The aim of this study was to assess whether the use of continuous infusion along with PCEA was beneficial for laboring women with regards to quality of analgesia, maternal satisfaction and neonatal outcome in comparison to PCEA alone. Fifty five parturients received epidural bolus of 10ml solution containing 0.125% bupivacaine +2 ìg.ml-1 of fentanyl. For maintenance of analgesia the patients of Group PCEA self administered 8 ml bolus with lockout interval of 20 minutes of above solution on demand with no basal infusion. While the patients of Group PCEA + CI received continuous epidural infusion at the rate of 10 ml.hr-1 along with self administered boluses of 3 ml with lockout interval of 10 minutes of similar epidural solution. Patients of both groups were given rescue boluses by the anaesthetists for distressing pain. Verbal analogue pain scores, incidence of distressing pain, need of supplementary/rescue boluses, dose of bupivacaine consumed, maternal satisfaction and neonatal Apgar scores were recorded. No significant difference was observed between mean VAS pain scores during labor, maternal satisfaction, mode of delivery or neonatal Apgar scores. But more patients (n=8 required rescue boluses in PCEA group for distressing pain. The total volume consumed of bupivacaine and opioid was slightly more in PCEA + CI group. In both the techniques the highest sensory level, degree of motor block were comparable& prolongation of labor was not seen. It was concluded that both the techniques provided equivalent labor analgesia, maternal satisfaction and neonatal Apgar scores. PCEA along with continuous infusion at the rate of 10 ml/ hr resulted in lesser incidence of distressing pain and need for rescue analgesic. Although this group consumed higher dose of bupivacaine

  10. Investigation of the Effects of Continuous Low-Dose Epidural Analgesia on the Autonomic Nervous System Using Hilbert Huang Transform

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    Wei-Ren Chuang

    2010-01-01

    Full Text Available Effects of continuous low-dose epidural bupivacaine (0.05-0.1% infusion on the Doppler velocimetry for labor analgesia have been well documented. The aim of this study was to monitor the activity of the autonomic nervous system (ANS for women in labor based on Hilbert Huang transform (HHT, which performs signal processing for nonlinear systems, such as human cardiac systems. Thirteen pregnant women were included in the experimental group for labor analgesia. They received continuous epidural bupivacaine 0.075% infusion. The normal-to-normal intervals (NN-interval were downloaded from an ECG holter. Another 20 pregnant women in non-anesthesia labor (average gestation age was 38.6 weeks were included in the comparison group. In this study, HHT was used to decompose components of ECG signals, which reflect three different frequency bands of a person's heart rate spectrum (viz. high frequency (HF, low frequency (LF and very low frequency (VLF. It was found that the change of energy in subjects without anesthesia was more active than that with continuous epidural bupivacaine 0.075% infusion. The energy values of the experimental group (i.e., labor analgesia of HF and LF of ANS activities were significantly lower (P < 0.05 than the values of the comparison group (viz. labor without analgesia, but the trend of energy ratio of LF/HF was opposite. In conclusion, the sympathetic and parasympathetic components of ANS are all suppressed by continuous low-dose epidural bupivacaine 0.075% infusion, but parasympathetic power is suppressed more than sympathetic power.

  11. Antibacterial activity of epidural infusions.

    Science.gov (United States)

    Coghlan, M W; Davies, M J; Hoyt, C; Joyce, L; Kilner, R; Waters, M J

    2009-01-01

    The incidence of epidural abscess following epidural catheterisation appears to be increasing, being recently reported as one in 1000 among surgical patients. This study was designed to investigate the antibacterial activity of various local anaesthetics and additives, used in epidural infusions, against a range of micro-organisms associated with epidural abscess. The aim was to determine which, if any, epidural infusion solution has the greatest antibacterial activity. Bupivacaine, ropivacaine and levobupivacaine crystals were dissolved and added to Mueller-Hinton Agar in concentrations of 0.06%, 0.125%, 0.2%, 0.25%, 0.5% and 1%. Fentanyl, adrenaline and clonidine were also mixed with agar in isolation and in combination with the local anaesthetics. Using a reference agar dilution method, the minimum inhibitory concentrations were determined for a range of bacteria. Bupivacaine showed antibacterial activity against Staphylococcus aureus, Enterococcus faecalis and Escherichia coli with minimum inhibitory concentrations between 0.125% and 0.25%. It did not inhibit the growth of Pseudomonas aeruginosa at any of the concentrations tested. Levobupivacaine and ropivacaine showed no activity against Staphylococcus aureus, Enterococcus faecalis and Pseudomonas aeruginosa, even at the highest concentrations tested, and minimal activity against Escherichia coli (minimum inhibitory concentrations 0.5% and 1% respectively). The presence of fentanyl, adrenaline and clonidine had no additional effect on the antibacterial activity of any of the local anaesthetic agents. The low concentrations of local anaesthetic usually used in epidural infusions have minimal antibacterial activity. While the clinical implications of this in vitro study are not known, consideration should be given to increasing the concentration of bupivacaine in an epidural infusion or to administering a daily bolus of 0.25% bupivacaine to reduce the risk of epidural bacterial growth.

  12. EXTRADURAL ANESTHESIA WITH AND WITHOUT KETAMIN: A DOUBLE BLIND RANDOMIZED CLINICAL TRIAL

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    R TALA KOUB

    2001-09-01

    Full Text Available Introduction. Extradural anesthesia is a successfull procedure in many operations.This is also a suitable and elective anesthetic procedure in many operations have particular hemodynamic conditions. Hence the onset time on this of anesthesia is slow and the degree of sensory and motor block is relatively variable in many cases, this procedure is not accepted by anesthesiologists and surgeons. So, inspite of its priority in many cases, it is less used. Thegoal of this study is to achieve a practical and effective solution to shorten the onset of analgesia and increasing analgesic duration which studies adding ketamin to bupivacain in extradural anesthesia. Methods. This study is a double blinded randomized clinical trial. Forty adult patients in class 1 and 2 of ASA who have been candidate for elective lower limb or lower abdominal surgery in Al-zahra and Kashani medical center in 1998 were selected. Without receiving any premedications, all of the patients received 500 CC ringer lactated solution before onset of anesthesia and they were divided into 2 groups. Group 1 received 20 cc of 0.5 percent bupivacain+0.5cc of 0.9 percent normal saline. Group 2 (interventional received 20 cc of 0.5 percent bupivacain + 0.5 cc of Ketamin (25mg. The onset of sensory block and the duration of sensory and motor block were measured and compared in both groups. Results. The onset of sensory block in interventional group was shorter than in controlled group. The duration of sensory block in interventional group was longer than in controlled group. The duration of the motor block was longer in controlled group than interventional group (P < 0.05. Discussion. Adding ketamin to bupivacain results in earlier onset and longer duration of analgesia in extradural anesthesia. This effect may be due to the inhibitory effect of the ketamin on posterior nerve root activity in spinal cord which can be an effective mechanism of ketamin in making analgesia.

  13. Local Anesthesia in Cataract Surgery-A Comparison of Different Methods

    Institute of Scientific and Technical Information of China (English)

    Nolan; J; Aziz; M; Ahmad; M; Shehata; M; Iqbal; F

    1993-01-01

    Seven groups of thirty patients undergoing cataract extraction under local anesthesia were each given different combinations of local anesthesia. These varied from a maximum approach using supra-orbital, infra-orbital and facial blocks with Hyalase, orbital compression and pre-operative Acetazolamide down to a minimum group receiving purely an infra- orbital and supra-orbital block with a Ugnocaine/Bupivacaine mixture. There was no sig