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Sample records for abdominal cavity

  1. Multiple Ectopic Hepatocellular Carcinomas Arising in the Abdominal Cavity

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    Toru Miyake

    2012-09-01

    Full Text Available Ectopic hepatocellular carcinoma (HCC is a very rare clinical entity that is defined as HCC arising from extrahepatic liver tissue. This report presents a case of ectopic multiple HCC arising in the abdominal cavity. A 42-year-old otherwise healthy male presented with liver dysfunction at a general health checkup. Both HCV antibody and hepatitis B surface antigen were negative. Laboratory examination showed elevations in serum alpha-fetoprotein and PIVKA-II. Ultrasonography and computed tomography revealed multiple nodular lesions in the abdominal cavity with ascites without a possible primary tumor. Exploratory laparoscopy was performed, which revealed bloody ascites and multiple brown nodular tumors measuring approximately 10 mm in size that were disseminated on the perineum and mesentery. A postoperative PET-CT scan was performed but it did not reveal any evidence of a tumor in the liver. The tumors resected from the peritoneum were diagnosed as HCC. The present case of HCC was thought to have possibly developed from ectopic liver on the peritoneum or mesentery.

  2. The MRI of extraadrenal pheochromocytoma in the abdominal cavity

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    Qiao Huangsui [Department of Radiology, the 2nd Affiliated Hospital, Sun Yet-sen University, Guangzhou, Guangdong Province 510120 (China); Feng Xulin [Department of Radiology, 2nd Affiliated Hospital, Sun Yet-sen University, Guangzhou, Guangdong Province 510120 (China)]. E-mail: xulf1@21cn.com; Yong Li [Department of Radiology, 2nd Affiliated Hospital, Sun Yet-sen University, Guangzhou, Guangdong Province 510120 (China); Yong Zhang [Department of Radiology, 2nd Affiliated Hospital, Sun Yet-sen University, Guangzhou, Guangdong Province 510120 (China); Lian Zhongjing [Department of Radiology, 2nd Affiliated Hospital, Sun Yet-sen University, Guangzhou, Guangdong Province 510120 (China); Ling Liangbi [Department of Radiology, 2nd Affiliated Hospital, Sun Yet-sen University, Guangzhou, Guangdong Province 510120 (China)

    2007-06-15

    The purpose of this study was to summarize the MR appearances of extraadrenal pheochromocytoma in the abdominal cavity and evaluate the capabilities of MRI in diagnosis of the tumor. Eleven consecutive patients with an extraadrenal pheochromocytoma in abdominal cavity who underwent preoperative 0.5 T (n = 5) or 1.5 T (n = 6) superconductor MRI and had a surgical resection were enrolled in the study. The MR scanning protocol included axial T{sub 2}-weighted imaging with or without fat-suppressed sequences, axial and coronal uncontrast and contrast T{sub 1}-weighted sequences with or without fat suppression. The extraadrenal pheochromocytomas were found in retroperitoneum (n = 5), the urinary bladder (n = 1), the pelvis (n = 1), the right prerenal area (n = 1), the renal hilus (n = 1), the left paramusculus psoas major (n = 1) and liver (n = 1). The mean maximal diameter of tumors was 55.9 mm (range 17.8-162.2 mm). The high signal intensity was seen on T{sub 2}-weighted imaging in all tumors compared to muscle or liver, especially with fat suppression. The intratumoral septa and capsules were shown in 63.6% and 72.7% of cases, respectively, which had low signal intensity on T{sub 2}-weighted imaging. These relative characteristics may be helpful for qualitative diagnosis of extraadrenal pheochromocytomas with MRI. Other usefulness of MRI was to locate the position, to decide the range of tumors and to show well the relationship between the tumor and near structures.

  3. Pancake Kidney Found Inside Abdominal Cavity: Rare Case with Literature Review

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    Hamzeh M. Ghawanmeh

    2017-07-01

    Full Text Available The cake or lump kidney is a rare form of fusion. The pancake kidney is always found in the pelvic cavity, in the greater or lesser pelvis. However, we report a case of pancake kidney which was found inside abdominal cavity while investigating 32-year-old male for lower limb pain. CT scan with IV contrast reveals ‘fused mass situated in the right side of abdominal cavity with course uncrossed ureters opening separately into the urinary bladder found incidentally with patient work up’. Pancake kidney in this case was managed conservatively without any complication. This malformation is usually present in pelvic cavity, so blood supply is almost constant but in rare cases might be different and follows location of this anomaly.

  4. Low-Grade Myxofibrosarcoma of the Rectus Abdominus Muscle Infiltrating into Abdominal Cavity: A Case Report.

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    Nomura, Tadashi; Sakakibara, Shunsuke; Moriwaki, Aya; Kawamoto, Teruya; Suzuki, Satoshi; Ishimura, Takeshi; Hashikawa, Kazunobu; Terashi, Hiroto

    2017-01-01

    Objective: Myxofibrosarcoma (MFS) is a relatively rare tumor that is histologically characterized by myxoid stroma and spindle cell proliferation. This tumor most commonly arises as a slow growing, enlarging painless mass in the extremities of elderly patients. Methods: We report a case of a primary, low-grade MFS in the rectus abdominis muscle infiltrating the abdominal cavity of a 75-year-old man. Results: The patient underwent a wide excision of the right abdominal wall mass with a 3-cm surgical margin from the scar due to a biopsy. The tumor infiltrated the urinary bladder, peritoneum, and external iliac vessels. Twenty-six months after the initial operation, he had recurrences in his abdominal wall, urinary bladder, and right iliac vessels. Conclusions: To our knowledge, primary MFS of the muscle in the abdomen has not been documented previously. Although this case was histopathologically classified as a low-grade tumor, it infiltrated the abdominal cavity. The tumor is suspected to have penetrated the abdominal cavity below the linea arcuata, which lacks the posterior sheath of the rectus abdominis muscle; from there, it could easily spread without being blocked by any biological barriers.

  5. [Mathematical analysis of complicated course of acute surgical diseases of abdominal cavity organs].

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    Vozniuk, S M; Pol'ovyĭ, V P; Sydorchuk, R I; Palianytsia, A S

    2013-03-01

    In this paper we analyze the results of diagnosis and treatment of 130 patients with acute surgical diseases of the abdominal cavity, complicated by peritonitis. We proposed the method of estimating the severity of the patients using a coefficient of status severity (C(SS)), developed a scale for prediction of complicated outcomes of acute surgical pathology of the abdominal cavity and abdominal sepsis, which is adapted to the working conditions of local clinics. Using the C(SS) and the scale prediction, allowed timely identification of patients' risk group with possible complicated course, assign adequate treatment, reduce postoperative complications by 5%, relaparotomies by 4.4%, decrease postoperative mortality by 3.9%.

  6. Development of a new illumination procedure for photodynamic therapy of the abdominal cavity

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    Guyon, Laurie; Claude Lesage, Jean; Betrouni, Nacim; Mordon, Serge

    2012-03-01

    A homogeneous illumination of intra-abdominal organs is essential for successful photodynamic therapy of the abdominal cavity. Considering the current lack of outstanding light-delivery systems, a new illumination procedure was assessed. A rat model of peritoneal carcinomatosis was used. Four hours after intraperitoneal injection of hexaminolevulinate, a square illuminating panel connected to a 635-nm laser source was inserted vertically into the abdominal cavity. The abdominal incision was sutured and a pneumoperitoneum created prior to illumination. Light dosimetry was based on the calculation of the peritoneal surface by MRI. The rats were treated with a light dose of 20, 10, 5 or 2.5 J/cm2 administered continuously with an irradiance of 7 mW/cm2. The homogeneity of the cavity illumination was assessed by quantification of the photobleaching of the tumor lesions according to their localization and by scoring of that of the liver and of the bowel immediately after treatment. Photobleaching quantification for tumor lesions relied on the calculation of the fluorescence intensity ratio (after/before treatment) after recording of the lesions during blue-light laparoscopy and determination of their fluorescence intensity with Sigmascan Pro software. The procedure led to a homogeneous treatment of the abdominal cavity. No statistical difference was observed for the photobleaching values according to the localization of the lesions on the peritoneum (p=0.59) and photobleaching of the liver and of the intestine was homogeneous. We conclude that this procedure can successfully treat the major sites involved in peritoneal carcinomatosis.

  7. Perivascular Epithelioid Cell Tumor (PEComa) of Abdominal Cavity from Falciform Ligament: A Case Report

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    Choi, Cheol Woong; Kim, Tae Oh; Kim, Kyung Yeob; Lee, Sun mi; Kim, Gwang Ha; Kang, Dae Hwan; Song, Geun Am; Kim, Suk; Kim, Dae Hwan

    2009-01-01

    We present a case of perivascular epithelioid cell tumors (PEComas) in the abdominal cavity at the falciform ligament. A 30-yr-old Korean man visited to hospital for the evaluation of a growing, palpable abdominal mass. He had felt the mass growing over 6 months. There was no family or personal history of tuberous sclerosis. The resected specimen showed a mass of 8.0×7.0×5.5 cm in size. Histological examination showed sheets of spindle-to-epithelioid cells with clear-to-eosinophilic cytoplasm...

  8. Perivascular epithelioid cell tumor (PEComa) of abdominal cavity from falciform ligament: a case report.

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    Choi, Cheol Woong; Kim, Tae Oh; Kim, Kyung Yeob; Lee, Sun Mi; Kim, Gwang Ha; Kang, Dae Hwan; Song, Geun Am; Kim, Suk; Kim, Dae Hwan

    2009-04-01

    We present a case of perivascular epithelioid cell tumors (PEComas) in the abdominal cavity at the falciform ligament. A 30-yr-old Korean man visited to hospital for the evaluation of a growing, palpable abdominal mass. He had felt the mass growing over 6 months. There was no family or personal history of tuberous sclerosis. The resected specimen showed a mass of 8.0x7.0x5.5 cm in size. Histological examination showed sheets of spindle-to-epithelioid cells with clear-to-eosinophilic cytoplasm. Immunohistochemically, tumor cells were positive for HMB-4 (gp100) and smooth muscle actin. They were also positive for the S-100, which is a marker of neurogenic and melanocytic tumors. Patient was treated with radical resection of tumor without any adjuvant therapy. He is well and on follow-up visits without tumor recurrence.

  9. Ultrasound diagnosis of emergency conditions of the abdominal cavity with different localization of pain

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    N. G. Zaviyalova

    2012-01-01

    Full Text Available This publication shows the comparative capabilities of localized and advanced volume ultrasound in emergency conditions of the abdominal cavity. To achieve this goal, a retrospective analysis of ultrasound examination of 130 patients with OAB in LOAC — 46, NCP — 33, LVK — 14, LNC — 18. The sensitivity of the localized and extended survey of the composition, respectively, in the AHC -81% and 93%, OMV — 33% and 77%, LVK — 50% and 86%, LNC — 53% and 73%. Comparison of the sensitivity of ultrasound examination, depending on the localization of SAR and sonography showed an increased volume of ultrasound can improve the sensitivity of the examination in patients with acute pathology of abdominal organs from 12 to 44%.

  10. Survival Following Rectal Impalement through the Pelvic, Abdominal, and Thoracic Cavities: A Case Report

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    Michael Moncure

    2009-01-01

    Full Text Available Impalement injuries are a unique form of penetrating trauma and are typically associated with a fall onto the object (Steele, 2006. We present the case of a 45-year-old man who reportedly slipped in his bathtub and fell onto a broomstick. Radiographic examination revealed a slender mass extending from his rectum to the right side of his neck. A review of English literature suggests that this is the second reported case in the last 100 years describing the successful management of an impalement injury traversing the pelvic, abdominal, and thoracic cavities. The management of this case is described.

  11. Radiographic anatomy of the thoraco-abdominal cavity of the ostrich (Struthio camelus

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    W.M. Wagner

    2001-07-01

    Full Text Available This study provides a reference for the radiographic anatomy of the thoraco-abdominal cavity of female ostriches as a representative of ratites. One ostrich cadaver, 2 adult and 2 growing ostriches were used. Right lateral radiographs produced by a 6-frame technique and 2 dorsoventral radiographs produced by an adapted 3-frame technique were selected and schematic illustrations of these were labelled to illustrate normal radiographic anatomy. Differences from other avian species and unique features of the ostrich are briefly discussed.

  12. Comparative study of abdominal cavity temporary closure techniques for damage control.

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    Ribeiro, Marcelo A F; Barros, Emily Alves; Carvalho, Sabrina Marques DE; Nascimento, Vinicius Pereira; Cruvinel, José; Fonseca, Alexandre Zanchenko

    2016-01-01

    The damage control surgery, with emphasis on laparostomy, usually results in shrinkage of the aponeurosis and loss of the ability to close the abdominal wall, leading to the formation of ventral incisional hernias. Currently, various techniques offer greater chances of closing the abdominal cavity with less tension. Thus, this study aims to evaluate three temporary closure techniques of the abdominal cavity: the Vacuum-Assisted Closure Therapy - VAC, the Bogotá Bag and the Vacuum-pack. We conducted a systematic review of the literature, selecting 28 articles published in the last 20 years. The techniques of the bag Bogotá and Vacuum-pack had the advantage of easy access to the material in most centers and low cost, contrary to VAC, which, besides presenting high cost, is not available in most hospitals. On the other hand, the VAC technique was more effective in reducing stress at the edges of lesions, removing stagnant fluids and waste, in addition to acting at the cellular level by increasing proliferation and cell division rates, and showed the highest rates of primary closure of the abdominal cavity. RESUMO A cirurgia de controle de danos, com ênfase em peritoneostomia, geralmente resulta em retração da aponeurose e perda da capacidade de fechar a parede abdominal, levando à formação de hérnias ventrais incisionais. Atualmente, várias técnicas oferecem maiores chances de fechamento da cavidade abdominal, com menor tensão. Deste modo, este estudo tem por objetivo avaliar três técnicas de fechamento temporário da cavidade abdominal: fechamento a vácuo (Vacuum-Assisted Closure Therapy - VAC), Bolsa de Bogotá e Vacuum-pack. Realizou-se uma revisão sistemática da literatura com seleção de 28 artigos publicados nos últimos 20 anos. As técnicas de Bolsa de Bogotá e Vacuum-pack tiveram como vantagem o acesso fácil ao material, na maioria dos centros, e baixo custo, ao contrário do que se observa na terapia a vácuo, VAC, que além de apresentar

  13. Posterior Uterine Rupture Causing Fetal Expulsion into the Abdominal Cavity: A Rare Case of Neonatal Survival

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    K. Navaratnam

    2011-01-01

    Full Text Available Introduction. Uterine rupture is a potentially catastrophic complication of vaginal birth after caesarean section. We describe the sixth case of posterior uterine rupture, with intact lower segment scar, and the first neonatal survival after expulsion into the abdominal cavity with posterior rupture. Case Presentation. A multiparous woman underwent prostaglandin induction of labour for postmaturity, after one previous caesarean section. Emergency caesarean section for bradycardia revealed a complete posterior uterine rupture, with fetal and placental expulsion. Upon delivery, the baby required inflation breaths only. The patient required a subtotal hysterectomy but returned home on day 5 postnatally with her healthy baby. Discussion. Vaginal birth after caesarean section constitutes a trial of labour, and the obstetrician must be reactive to labour events. Posterior uterine rupture is extremely rare and may occur without conventional signs. Good maternal and fetal outcome is possible with a prompt, coordinated team response.

  14. Mummified papyraceous fetuses in the abdominal cavity of an elderly female dog with pyometra

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    F.A. Voorwald

    2012-04-01

    Full Text Available This paper reports on a rare case of fetal papyraceous mummification after asymptomatic uterine rupture in an elderly female dog with pyometra. The patient had a history of mating six months before the examination but no apparent signs of gestation or parturition. Exploratory laparotomy was used to identify a rupture of the left uterine horn and the presence of cystic endometrial hyperplasia and pyometra. Two mummified papyraceous fetuses were observed in the abdominal cavity and had adhered to the spleen, pancreas, intestine and omentum. Ovariehysterectomy and corrective surgery were performed. The patient had remained healthy after uterine rupture until a new estrous cycle and the development of pyometra. Bitches that are 10 years old or more are predisposed to implantation failure, pregnancy or parturition problems and they should not be breed to avoid complications.

  15. Epithelioid inflammatory myofibroblastic sarcoma in abdominal cavity: a case report and review of literature.

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    Wu, Hui; Meng, Yu-Hong; Lu, Ping; Ning, Hao-Yong; Hong, Liu; Kang, Xiao-Ling; Duan, Min-Gang

    2015-01-01

    In this study, we present a rare and difficult case of epithelioid inflammatory myofibroblastic sarcoma (EIMS) in abdominal cavity. A 47-year-old female presented as left upper abdominal pain for 6 months and abdominal distention for 1 month. CT examination showed a solid mass in the left upper intra-abdomen. Grossly, the tumor was found in the mesenterium of colon with the size of 7.5 × 6.5 × 3.5 cm, and was solid and gray-yellowish in the cut surface. Focal myxomatous appearance was observed. Microscopically, stromal myxoid change together with prominant infiltrated lymphocytes, neutrophils and eosinophils were found in the tumor, and the tumor cells were round, epithelioid with vesicular nuclei, large prominant nucleoli and high mitotic rate. Immunohistochemically, strong diffused positive for vimentin, desmin, ALK (nuclear membrane staining pattern) and AAT, focally positive for CD99 and CD30, were showed, Ki67 index was about 20%; Especially, WT-1 and D240 were focally expressed in this tumor. FISH analysis showed rearrangement of ALK, and reverse-transcription polymerase chain reaction (RT-PCR) analysis was used to detect the fusion location of the RANBP2 and ALK gene. The diagnosis of EMIS was made based on its location, typical morphology, the immunohistochemical features especially the nuclear membranous immunostaining of ALK and rearrangement of RANBP2-ALK. The tumor showed higher aggressive behaviors and a poor prognosis. The differential diagnosis and other treatments of EMIS are also discussed in the present study. This finding may increase the case information of EMIS.

  16. Surgical treatment of inflammations and adhesions of the abdominal cavity in adolescents using stream hydroscalp

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    V.V. Skiba

    2017-03-01

    Full Text Available The aim of the study was to improve the results of surgical treatment of inflammations and adhesions of the abdominal cavity in adolescents using stream hydroscalpel. Materials and methods. Sixty eight adolescents aged 17–18 years underwent treatment at the surgical department of Kyiv Municipal Clinical Hospital N 1 from 2009 to 2016. There were 39 male (57.35 % patients, and 29 (42.65 % — female. Abdominal infiltrates were detected in 52 (76.47 % patients, and adhesive intestinal obstruction — in 16 (23.53 %. Upon admission to the hospital, clinical blood and urine tests, X-ray and ultrasound study of the abdominal organs were performed. Results. The cause of the inflammatory process was inflammation of the appendix in 49 (72.05 % individuals and of Meckel’s diverticulum — in 3 (4.41 %. The causes of adhesions were appendectomy in the past medical history of 9 males (13.23 %, 5 females (7.35 %; and in two (2.96 % other female adolescents the cause of the first surgery were gynecological diseases. Hospitalization period: during the first day, there were hospitalized 11 (16.17 %, on the second day — 25 (36.76 %, on the third day — 32 (47.07 % patients. Upon hospitalization, the general condition was classified as critical in 36 (52.94 % people, and extremely critical — in 32 (47.06 %, with signs of organ fai­lure — oliguria. Analysis of the clinical picture showed that all 57 (83.82 % patients had the vomiting syndrome, of them in 29 (42.65 %, vomiting was unbearable, with hiccups. Abdominal pain syndrome has been detected in 63 (92.65 % patients, of whom in 23 (33.82 %, pain was cramping, and in 40 (58.83 % — permanent. Pain syndrome was absent in 5 (7.35 % patients, but they had a feeling of heaviness in the epigastric region. The asymmetry of the anterior abdominal wall is detected in 62 (91.17 % patients, of them, the asymmetry of the right and left sections — in 34 (50.0 %, and upper and lower — in 28 (41

  17. The possibilities of single-port laparoscopic access in cholecystectomy after operations on the abdominal cavity organs

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    V. M. Klimenko

    2017-06-01

    Full Text Available Aim. To assess the possibility and effectiveness of single-port access in cholecystectomy using for chronic calculous cholecystitis in patients who were previously operated on the abdominal organs. Materials and Methods. For the period from September 2015 to March 2017, 27 patients were been operated by laparoscopic cholecystectomy using single-port access for chronic calculous cholecystitis. All patients were divided into 2 groups. The first group included 12 (44.4% patients with previous surgery on the abdominal organs, who were performed laparotomy. The second group (2 included 15 (55.5% patients who didn’t have surgical interventions on the abdominal organs. Results and Discussion. The average duration of surgical intervention in patients of the 1st group (n = 12 was 87.66 ± 4.03 minutes. In all cases chronic calculous cholecystitis was observed. There was no transition to open cholecystectomy. The average bed-day was 2.41 ± 0.20. Drainage of the abdominal cavity was carried out only for 7 patients (58.3%. In 7 (58.3% patients opioid analgesics were prescribed once to reduce postoperative pain. Activation of patients occurred on the first day after the operation. After 2 days the ultrasound of the abdominal cavity was performed. In 2 (16.6% patients there was a slight accumulation of fluid in the region of the removed gallbladder that did not require puncture. Patients in the second group in all cases were performed a single-port cholecystectomy without additional trocars. The average duration of the operation was 38.93 ± 1.85 minutes. In all cases chronic calculous cholecystitis was observed. Conversions to the open methodology have not been noted. The average bed-day was 2.06 ± 0.07.Drainage of the abdominal cavity has not been performed. In 2 (13.3% cases opioid analgesics were prescribed once for postoperative pain relieving. Activation of patients occurred on the next day after the operation. After 2 days on the day of releasing

  18. FIBRINOLYTIC-ACTIVITY IN THE ABDOMINAL-CAVITY OF RATS WITH FECAL PERITONITIS

    NARCIS (Netherlands)

    van Goor, Harry; de Graaf, JS; Sluiter, WJ; van der Meer, J; Bom, VJJ; Bleichrodt, RP

    1994-01-01

    Generalized peritonitis causes a reduction in abdominal fibrinolytic activity, resulting in persistence of intraabdominal fibrin with subsequent adhesion and abscess formation. The activities of tissue plasminogen activator (tPA) and plasminogen activator inhibitor (PAI) were measured in the periton

  19. FIBRINOLYTIC-ACTIVITY IN THE ABDOMINAL-CAVITY OF RATS WITH FECAL PERITONITIS

    NARCIS (Netherlands)

    van Goor, Harry; de Graaf, JS; Sluiter, WJ; van der Meer, J; Bom, VJJ; Bleichrodt, RP

    1994-01-01

    Generalized peritonitis causes a reduction in abdominal fibrinolytic activity, resulting in persistence of intraabdominal fibrin with subsequent adhesion and abscess formation. The activities of tissue plasminogen activator (tPA) and plasminogen activator inhibitor (PAI) were measured in the periton

  20. SELECTIVE DECONTAMINATION OF THE DIGESTIVE-TRACT PREVENTS SECONDARY INFECTION OF THE ABDOMINAL-CAVITY, AND ENDOTOXEMIA AND MORTALITY IN STERILE PERITONITIS IN LABORATORY RATS

    NARCIS (Netherlands)

    ROSMAN, C; WUBBELS, GH; MANSON, WL; BLEICHRODT, RP

    1992-01-01

    Background and Methods. This study was undertaken to find out whether translocation of bacteria to the abdominal cavity and endotoxemia in rats with sterile peritonitis could be prevented by selective decontamination of the digestive tract. Sterile peritonitis was caused by the intraperitoneal

  1. SELECTIVE DECONTAMINATION OF THE DIGESTIVE-TRACT PREVENTS SECONDARY INFECTION OF THE ABDOMINAL-CAVITY, AND ENDOTOXEMIA AND MORTALITY IN STERILE PERITONITIS IN LABORATORY RATS

    NARCIS (Netherlands)

    ROSMAN, C; WUBBELS, GH; MANSON, WL; BLEICHRODT, RP

    1992-01-01

    Background and Methods. This study was undertaken to find out whether translocation of bacteria to the abdominal cavity and endotoxemia in rats with sterile peritonitis could be prevented by selective decontamination of the digestive tract. Sterile peritonitis was caused by the intraperitoneal injec

  2. Small-Incision Laparoscopy-Assisted Surgery Under Abdominal Cavity Irrigation in a Porcine Model

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    Ishii, Takuro; Aoe, Tomohiko; Yu, Wen-Wei; Ebihara, Yuma; Kawahira, Hiroshi; Isono, Shiro; Naya, Yukio

    2016-01-01

    Abstract Background: Laparoscopic and robot-assisted surgeries are performed under carbon dioxide insufflation. Switching from gas to an isotonic irrigant introduces several benefits and avoids some adverse effects of gas insufflation. We developed an irrigating device and apparatus designed for single-incision laparoscopic surgery and tested its advantages and drawbacks during surgery in a porcine model. Materials and Methods: Six pigs underwent surgical procedures under general anesthesia. A 30-cm extracorporeal cistern was placed over a 5–6-cm abdominal incision. The abdomen was irrigated with warm saline that was drained via a suction tube placed near the surgical field and continuously recirculated through a closed circuit equipped with a hemodialyzer as a filter. Irrigant samples from two pigs were cultured to check for bacterial and fungal contamination. Body weight was measured before and after surgery in four pigs that had not received treatments affecting hemodynamics or causing diuresis. Results: One-way flow of irrigant ensured laparoscopic vision by rinsing blood from the surgical field. Through a retroperitoneal approach, cystoprostatectomy was successfully performed in three pigs, nephrectomy in two, renal excision in two, and partial nephrectomy in one, under simultaneous ultrasonographic monitoring. Through a transperitoneal approach, liver excision and hemostasis with a bipolar sealing device were performed in three pigs, and bladder pedicle excision was performed in one pig. Bacterial and fungal contamination of the irrigant was observed on the draining side of the circuit, but the filter captured the contaminants. Body weight increased by a median of 2.1% (range, 1.2–4.4%) of initial weight after 3–5 hours of irrigation. Conclusions: Surgery under irrigation is feasible and practical when performed via a cistern through a small abdominal incision. This method is advantageous, especially in the enabling of continuous and free

  3. Fate of gamma-interferon-activated killer blood monocytes adoptively transferred into the abdominal cavity of patients with peritoneal carcinomatosis

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    Stevenson, H.C.; Keenan, A.M.; Woodhouse, C.; Ottow, R.T.; Miller, P.; Steller, E.P.; Foon, K.A.; Abrams, P.G.; Beman, J.; Larson, S.M.

    1987-11-15

    Five patients with colorectal cancer widely metastatic to peritoneal surfaces have been treated i.p. with infusions of autologous blood monocytes made cytotoxic by in vitro incubation with human gamma-interferon. The monocytes were purified by a combination of cytapheresis and counter-current centrifugal elutriation procedures; each week approximately 350 million activated monocytes were given to patients as adoptive immunotherapy by a single i.p. instillation. On the eighth cycle of treatment the trafficking of i.p. infused blood monocytes was studied in two patients by prelabeling the cells with /sup 111/In. These activated cells became distributed widely within the peritoneal cavity. Two and 5 days after infusion their position within the peritoneum had not changed. When peritoneal specimens were obtained 36 h after /sup 111/In-labeled monocyte infusion, labeled monocytes were demonstrated to be associated with the serosal surfaces by autoradiographic analysis. Scintiscanning structures outside the abdominal cavity revealed that /sup 111/In-labeled monocytes infused i.p. did not traffic to other organs during the 5 days of the study. We conclude that i.p. adoptive transfer of autologous killer blood monocytes is an effective way of delivering these cytotoxic cells to sites of tumor burden on peritoneal surfaces in these cancer patients.

  4. Cavities

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    ... may pass these bacteria to a child through kissing, sampling the child's food, or sharing eating utensils. ... pass decay-causing bacteria to their children through kissing or sharing eating utensils. Symptoms of Cavities Whether ...

  5. Laparoscopic surgery for colon cancer: a review of the fascial composition of the abdominal cavity.

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    Mike, Makio; Kano, Nobuyasu

    2015-02-01

    Laparoscopic surgery has generally been performed for digestive diseases. Many patients with colon cancer undergo laparoscopic procedures. The outcomes of laparoscopic colectomy and open colectomy are the same in terms of the long-time survival. It is important to dissect the embryological plane to harvest the lymph nodes and to avoid bleeding during colon cancer surgery. To date, descriptions of the anatomy of the fascial composition have mainly involved observations unrelated to fundamental embryological concepts, causing confusion regarding the explanations of the surgical procedures, with various vocabularies used without definitions. We therefore examined the fascia of the abdominal space using a fascia concept based on clinical anatomy and embryology. Mobilization of the bilateral sides of the colon involves dissection between the fusion fascia of Toldt and the deep subperitoneal fascia. It is important to understand that the right fusion fascia of Toldt is divided into the posterior pancreatic fascia of Treitz dorsally and the anterior pancreatic fascia ventrally at the second portion of the duodenum. A comprehensive understanding of fascia composition between the stomach and transverse colon is necessary for dissecting the splenic flexure of the colon. As a result of these considerations of the fascia, more accurate surgical procedures can be performed for the excision of colon cancer.

  6. An epidemiological survey of setaria in the abdominal cavities of Iranian sistani and brahman cattle in the southeastern of iran.

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    Khedri, Javad; Radfar, Mohammad Hossein; Borji, Hassan; Azizzadeh, Mohammad

    2014-01-01

    In this experiment, abdominal cavity of 518 Iranian Sistani cattle and 498 Brahman cattle were inspected for the presence of Setaria spp. from April 2012 - May 2013. The species were determined by microscopic examination of the morphological characteristics of the anterior and posterior parts of the parasites and authentic guidelines. The overall prevalence of Setaria spp. was 28.6% and 36.5%, respectively and this difference was significant (P<0.05). Out of 148 Sistani cattle which were infected with Setaria, 51(34.4%) were infected with S. digitata, 31 (20.9%) were infected with S. labiatopapillosa, 65 (43.9%) showed mixed infection of S. digitata and S. labiatopapillosa and one case (0.6%) was infected with mixed infection of S. labiatopapillosa, S. digitata and S. marshalli. These values were 87 (47.8%), 27 (14.8%), 67 (36.8%) and 1 (0.5%) for 182 infected Brahaman cows, respectively. The proportion of infected cattle in spring and summer was greater than cooler season (autumn and winter) significantly (P<0.001). The prevalence of infection with Setaria in 2-3 years old Sistatni cattle (42.2 %) was greater than other age categories (P<0.05). Furthermore, the infection rate between males (25.5%) and females (37.3%) Iranian Sistani cattle showed significant difference (P =0.009). It is important to point out the presence of cerebrospinal setariosis, namely in sheep, goats and horses in the investigated area.

  7. Hepatocellular cancer in an extra liver lobe in the lower abdominal cavity - Differential diagnosis and problems; Hepatozellulaeres Karzinom in einem zusaetzlichen gestielten Leberlappen im Unterbauch - differentialdiagnostische Problematik

    Energy Technology Data Exchange (ETDEWEB)

    Leinung, S.; Wuerl, P.; Richter, K.; Frey, A.; Schoenfelder, M. [Leipzig Univ. (Germany). Chirurgische Klinik und Poliklinik 1; Biesold, M. [Leipzig Univ. (Germany). Klinik und Poliklinik fuer Diagnostische Radiologie

    2000-07-01

    The case described is that of a 36 year old patient with a known tumor in her lower abdominal cavity which has been observed to increase in size for the passed 16 years. Intraoperatively, one observed a very rare finding of an extra liver lobe of the left liver lobe and located in the lower abdominal cavity. Located within is a multifocal therapeutically treatable hepatocellular cancer. (orig.) [German] Dargestellt wird der Fall einer 36 jaehrigen Patientin, die seit 16 Jahren die Groessenzunahme eines ihr bekannten Tumors im Unterbauch beobachtete. Intraoperativ zeigte sich der seltene Befund eines zusaetzlichen Leberlappens gestielt am Segment 3 im Unterbauch mit einem auf den linken Leberlappen begrenzten und kurativ therapierbaren multifokalen hepatozellulaeren Karzinoms. (orig.)

  8. 中心静脉导管腹腔置入的应用观察%Application and observation of placing central venous catheter into abdominal cavity

    Institute of Scientific and Technical Information of China (English)

    张玉军; 于建昌; 徐光耀

    2012-01-01

    Objective To observe the feasibility and the clinical effect of placing central venous catheter into the abdominal cavity. Methods 46 patients with massive ascites were randomly divided into two groups: group A and group B, 23 cases in each group, The patients in group A were placed central venous catheter into abdominal cavity. Group B was the traditional abdominal puncture's group. Results The central venous catheter was inserted into the abdominal cavity of patients in group A, each patient's average abdominal puncture was (l.l±0.1) times, average accumulative total put liquid was (18 210+65) mL,average note medicine was (1.5±0.2) times the number, clinical symptoms improved 21 cases,the recovery was 91.3%. Group B give repeated technic of abdominal smoke fluid, each patient's average abdominal puncture was (3.3± 0.2) times, average accumulative total put liquid was (9 750±70) mL, the mean number of injcetion was (0.7±0.1) times, clinical symptoms of 16 cases improved, the recovery rate was 69.6%. There were significant differences between the two groups with puncture number, releasing ascites, injecting the drugs into abdominal cavity, improving clinical symptoms (P < 0.05). Group A was better than group B. Conclusion The techniques of placing central venous catheter into the abdominal cavity has simple operation, good effect in releasing ascites and injecting the drugs into abdominal cavity, few side effect and should be used in massive ascites.%目的 观察中心静脉导管腹腔置入的可行性及临床应用效果.方法 将大量腹水的46例患者随机分为A、B两组,每组23例,A组为中心静脉导管腹腔置入组,B组为传统的腹腔穿刺术组.结果 A组把中心静脉导管置入腹腔,每例患者平均腹腔穿刺(1.1±0.1)次,平均累计放液(18 210±65)mL,平均注药次数(1.5±0.2)次,临床症状好转21例,好转率为91.3%.B组给予反复腹腔穿刺术抽液,每例患者平均穿刺次数(3.3±0.2)

  9. Abdominal Cavity Eventration Treated by Means of the „Open Abdomen” Technique Using the Negative Pressure Therapy System – Case Report and Literature Review

    OpenAIRE

    Trzeciak Piotr W.; Porzeżyńska Joanna; Ptasińska Karolina; Walczak Dominik A.

    2015-01-01

    Wound dehiscence is a surgical complication in which the wound ruptures along the surgical suture with abdominal cavity bowel displacement. It is observed in 0.2-6% of operated patients. The extensive wound is a gateway for infection. Moreover, increased secretion of serous fluid induces a hygienic problem and may lead to secondary skin infections or bedsores. The negative pressure wound therapy (NPWT) system is an innovative therapeutic method. It perfectly executes the TIME strategy, receiv...

  10. An epidemiological survey of setaria in the abdominal cavities of Iranian sistani and brahman cattle in the southeastern of iran.

    Directory of Open Access Journals (Sweden)

    Javad Khedri

    2014-06-01

    Full Text Available In this experiment, abdominal cavity of 518 Iranian Sistani cattle and 498 Brahman cattle were inspected for the presence of Setaria spp. from April 2012 - May 2013.The species were determined by microscopic examination of the morphological characteristics of the anterior and posterior parts of the parasites and authentic guidelines.The overall prevalence of Setaria spp. was 28.6% and 36.5%, respectively and this difference was significant (P<0.05. Out of 148 Sistani cattle which were infected with Setaria, 51(34.4% were infected with S. digitata, 31 (20.9% were infected with S. labiatopapillosa, 65 (43.9% showed mixed infection of S. digitata and S. labiatopapillosa and one case (0.6% was infected with mixed infection of S. labiatopapillosa, S. digitata and S. marshalli. These values were 87 (47.8%, 27 (14.8%, 67 (36.8% and 1 (0.5% for 182 infected Brahaman cows, respectively. The proportion of infected cattle in spring and summer was greater than cooler season (autumn and winter significantly (P<0.001. The prevalence of infection with Setaria in 2-3 years old Sistatni cattle (42.2 % was greater than other age categories (P<0.05. Furthermore, the infection rate between males (25.5% and females (37.3% Iranian Sistani cattle showed significant difference (P =0.009.It is important to point out the presence of cerebrospinal setariosis, namely in sheep, goats and horses in the investigated area.

  11. Double jeopardy revisited: clinical decision making in unstable patients with, thoraco-abdominal stab wounds and, potential injuries in multiple body cavities.

    Science.gov (United States)

    Clarke, Damian L; Gall, Tamara M H; Thomson, Sandie R

    2011-05-01

    In the setting of the hypovolaemic patient with a thoraco-abdominal stab wound and potential injuries in both the chest and abdomen, deciding which cavity to explore first may be difficult.Opening the incorrect body cavity can delay control of tamponade or haemorrhage and exacerbate hypothermia and fluid shifts. This situation has been described as one of double jeopardy. All stab victims from July 2007 to July 2009 requiring a thoracotomy and laparotomy at the same operation were identified from a database. Demographics, site and nature of injuries, admission observations and investigations as well as operative sequence were recorded. Correct sequencing was defined as first opening the cavity with most lethal injury. Incorrect sequencing was defined as opening a cavity and finding either no injury or an injury of less severity than a simultaneous injury in the unopened cavity. The primary outcome was survival or death. Sixteen stab victims underwent thoracotomy and laparotomy during the same operation. All were male with an age range of 18–40 (mean/median 27). Median systolic blood pressure on presentation was 90 mm Hg. (quartile range 80–90 mm Hg). Median base excess was 6.5 (quartile range 12 to 2.2). All the deaths were the result of cardiac injuries. Incorrect sequencing occurred in four patients (25%). In this group there were four negative abdominal explorations prior to thoracotomy with two deaths. There was one death in the correct sequencing group. Incorrect sequencing in stab victims who require both thoracotomy and laparotomy at the same sitting is associated with a high mortality. This is especially true when the abdomen is incorrectly entered first whilst the life threatening pathology is in the chest. Clinical signs may be confusing, leading to incorrect sequencing of exploration. The common causes for confusion include failure to appreciate that cardiac tamponade does not present with bleeding and difficulty in assessing peritonism in an

  12. Reação peritoneal tardia ao calculo biliar humano, de colesterol, deixado na cavidade abdominal de ratos Late peritoneal reaction to human cholesterol gallstone left into abdominal cavity of rats

    Directory of Open Access Journals (Sweden)

    Luiz Carlos Bertges

    1999-08-01

    Full Text Available Foram avaliados os resultados tardios da colocação de cálculos biliares humanos, de colesterol, na cavidade peritoneal de ratos. Constituíram-se cinco grupos: cinco ratos foram apenas laparotomizados com manuseio da cavidade; cinco foram laparotomizados e receberam um ponto com fio monofilamentar cinco zeros no sulco paracólico direito e mesentério; dez receberam cálculos que foram deixados livres na cavidade peritoneal; em dez, os clculos foram fixados no sulco paracólico direito e, finalmente, dez tiveram clculos fixados no mesentério. Os animais foram mortos após cinco meses de pós-operatório quando se observou a cavidade abdominal e foi coletado material para estudo histopatológico. Concluiu-se que os cálculos não foram absorvidos, desenvolveram uma reação peritoneal do tipo corpo estranho com formação de plastrão e foram envolvidos por tecido fibroso e células inflamatórias.It was evaluated the late results of human gallstones placed into peritoneal cavity of rats. Five groups were created. In the first (group A five rats were submitted only to laparotomy and handling of abdominal cavity, in the second (group B five rats were submitted to laparotomy and a stitch was placed into right abdominal wall and in mesenterium between the ileus and cecum, in the third (group C ten rats received a gallstone left free into abdomen, in the fourth (group D ten rats received a gallstone fixed into right abdominal wall and in the fifth (group E ten rats received a gallstone fixed in mesenterium between the ileus and cecum. One rat in each group was selected to be use as a pilot and were re-laparotomized after 1 month and 3 months, in order to look for any possible alteration. All rats were dead after five months when the abdominal cavity was observed and specimens were collected around the gallstones to histopathology. ln groups A and B there were not important macroscopic alterations. The gallstones were not absorved in groups C, D

  13. Hyperplasia of gastric mucosa in donor rats orally infected with Taenia taeniaeformis eggs and in recipient rats surgically implanted with the larvae in the abdominal cavity.

    Science.gov (United States)

    Konno, K; Oku, Y; Nonaka, N; Kamiya, M

    1999-06-01

    Rats heavily infected with Taenia taeniaeformis larvae in the liver show a remarkable increase in their stomach weight, hyperplasia, and hypergastrinemia. However, it is unknown what causes these phenomena. Hence, as a preliminary study to investigate the importance of larval parasitism in the liver, two experiments were done. In the first experiment, 14 donor rats were orally inoculated with 3,000 T. taeniaeformis eggs. In the second experiment, 136-300 of the larvae obtained from the rats were surgically implanted into the abdominal cavity of 7 recipient rats. Gastrin levels and histopathological changes in the gastric mucosa were investigated. In all, 11 donor rats showed hypergastrinemia and hyperplasia, 5 recipient rats showed gastric mucosal hyperplasia accompanied by excessive mucous cell proliferation, and 2 recipient rats showed hypergastrinemia. These results suggest that parasitism of the liver by the larvae is not essential for the development of hyperplasia and that factors from the larvae might cause these phenomena.

  14. Abdominal Cavity Eventration Treated by Means of the "Open Abdomen" Technique Using the Negative Pressure Therapy System--Case Report and Literature Review.

    Science.gov (United States)

    Trzeciak, Piotr W; Porzeżyńska, Joanna; Ptasińska, Karolina; Walczak, Dominik A

    2015-11-01

    Wound dehiscence is a surgical complication in which the wound ruptures along the surgical suture with abdominal cavity bowel displacement. It is observed in 0.2-6% of operated patients. The extensive wound is a gateway for infection. Moreover, increased secretion of serous fluid induces a hygienic problem and may lead to secondary skin infections or bedsores. The negative pressure wound therapy (NPWT) system is an innovative therapeutic method. It perfectly executes the TIME strategy, receiving more and more recognition. The study presented a case of a 62-year old male patient after several consecutive wound dehiscence episodes who was primarily treated for rectal cancer by means of low anterior resection of the rectum. Due to acute respiratory insufficiency after several operations, wound necrosis with dehiscence was observed. Considering the high risk of perioperative death we abandoned surgical treatment and introduced conservative management using negative pressure wound therapy until the patient's health improved. Literature regarding the above-mentioned issue was also reviewed.

  15. Abdominal Compartment Syndrome

    OpenAIRE

    Ovchinnikov V.А.; Sokolov V.А.

    2013-01-01

    We considered one of the most complicated problems of surgery and intensive care — abdominal compartment syndrome. It is a severe, and in some cases lethal complication developing in major injuries and pathology of abdominal cavity and retroperitoneal space, as well as in extra-abdominal pathology. In addition, compartment syndrome can be the complication of a number of surgical procedures accompanied primarily by laparotomy wound closure with tissue tension. We demonstrated the classificatio...

  16. The damages of high intensity focused ultrasound to transplanted hydatid cysts in abdominal cavities of rabbits with aids of ultrasound contrast agent and superabsorbent polymer.

    Science.gov (United States)

    Liu, Ai-Bo; Cai, Hui; Ye, Bin; Chen, Lu-Lu; Wang, Meng-Ying; Zhang, Jing; Zhao, Yi-Feng

    2013-05-01

    The present study investigates the damages of high intensity focused ultrasound (HIFU) to transplanted hydatid cysts in abdominal cavities of rabbits with aids of ultrasound contrast agent (UCA) and superabsorbent polymer (SAP) alone or in combination. A rabbit model with transplanted hydatid cyst was established by implanting hydatid cyst isolated from infected sheep liver, and HIFU was used to ablate the transplanted cysts with the aid of UCA and SAP alone or in combination. The hydatid cyst with thin wall, good elasticity, approximately spherical, and a diameter of approximately 30 mm was selected for the following experiments. According to our previous studies, a mixture of 0.1 g SAP and 0.5 ml anhydrous ethanol, and the solution of 0.1 ml UCA SonoVue, or both materials were injected into different cyst before HIFU ablation, respectively. The cyst inoculated with the SAP and UCA alone or in combination was immediately implanted into the abdominal cavity of rabbit for HIFU ablation at a dosage of 100 W acoustic powers. The ablation mode was spot scanning at the speed of 3 mm/s. Every target point was scanned three times; every ablating time lasted 3 s. The distance of each ablated layer was 5 mm. The total ablation time depended on the volume of cyst. The comparison of ultrasound image for each layer of hydatid cyst was made before and after HIFU ablation. The protoscolices in ablated cysts were stained by trypan blue exclusion assay, and their structures were observed by light microscopy. To estimate ablation effects of HIFU to the walls of hydatid cysts, the ultrastructure changes of cyst walls were examined by electron microscopy. The pathological changes of rabbits' skins through which ultrasound penetrated were observed to investigate the side effects of HIFU ablation. The results demonstrated that HIFU had some lethal effects to hydatid cysts in vivo, namely, echo enhancements of ultrasound images of cysts, increases in mortality rate of

  17. The study on different methods of abdominal cavity drainage tube,s placement in laparoscopic operation%腹腔镜手术腹腔引流管不同放置方法的研究

    Institute of Scientific and Technical Information of China (English)

    陈飞云; 舒思远; 张正伟; 杨佳全

    2014-01-01

    Objective:Discuss the placement techniques of abdominal cavity drainage tube in laparoscopic operation. Methods: Select the cases of abdominal cavity drainage tube,s placement and use three placement methords of abdominal cavity drainage tube in laparoscopic operation.The three methords :1.The drainage tube can be placed from trocars; 2.Removal of trocars, place abdominal cavity drainage tube from the stamp hole with ordinary curved forceps; 3. Under the guidance of B trocars,the laparoscopic forceps is placed into from A trocars and out of from B trocars. Exit the B trocars and place the drainage tube from outsid to inside with the laparoscopic forceps(NOTE:The trocars, location in the first two methods and the B trocars in the third method are the abdominal cavity drainage tube,s position). Compare the time of three methods with SNK-q test. Results:The time of a third method is the least. There is statistical significance with the first two methods. Conclusion: The third is a new method for the most convenient, can be popularized in the actual operation process.%目的:探讨腹腔镜手术中腹腔引流管放置技巧。方法:选取需要放置腹腔引流管的病例,采用三种不同腹腔引流管放置方法,即:1、引流管直接从戳卡中置入法;2、拔除戳卡,直接以普通弯钳钳夹从戳孔中置入;3、腔镜手术钳从A戳卡置入,在B戳卡的引导下,由腹内向腹外从B戳卡穿出,退出B戳卡,用腔镜手术钳钳夹引流管由外向内拖至腹腔内置入(附注:1、2方法的戳卡位置及3方法的B戳卡位置均为腹腔引流管位置)。采用SNK-q检验比较不同放置方法所费的时间。结果:第三种方法所费时间最少,优于前两种方法。结论:第三种方法是一种简便的新方法,在临床中可以大力推广。

  18. Mesh repair of hernias of the abdominal wall

    NARCIS (Netherlands)

    W.W. Vrijland (Wietske)

    2003-01-01

    textabstractA hernia of the abdominal wall is a permanent or intermittent protrusion of abdominal contents outside the abdominal cavity through a defect in the abdominal wall. Approximately 75% of all hernias occur in the inguinal region. Other types of hernias of the ventral abdominal wall are inci

  19. Mesh repair of hernias of the abdominal wall

    NARCIS (Netherlands)

    W.W. Vrijland (Wietske)

    2003-01-01

    textabstractA hernia of the abdominal wall is a permanent or intermittent protrusion of abdominal contents outside the abdominal cavity through a defect in the abdominal wall. Approximately 75% of all hernias occur in the inguinal region. Other types of hernias of the ventral abdominal wall are inci

  20. Tuberculosis abdominal Abdominal tuberculosis

    OpenAIRE

    Rubio, T.; M. T. Gaztelu; Calvo, A.; M. Repiso; H. Sarasíbar; F. Jiménez Bermejo; A. Martínez Echeverría

    2005-01-01

    La tuberculosis abdominal cursa con un cuadro inespecífico, con difícil diagnóstico diferencial respecto a otras entidades de similar semiología. Presentamos el caso de un varón que ingresa por presentar dolor abdominal, pérdida progresiva y notoria de peso corporal y fiebre de dos meses de evolución. El cultivo de la biopsia de colon mostró presencia de bacilo de Koch.Abdominal tuberculosis develops according to a non-specific clinical picture, with a difficult differential diagnosis with re...

  1. Application of enterostomy in treatment of bowel perforation complicated with abdominal cavity infections%肠穿孔腹腔感染肠造口术的应用研究

    Institute of Scientific and Technical Information of China (English)

    乔小平; 张桂华; 陈名林

    2015-01-01

    OBJECTIVE To analyze the application value of enterostomy in treating bowel perforation complicated with abdominal cavity infections so as to reduce the infection rate .METHODS Totally 80 patients with intestinal perforation complicated by abdominal cavity infections between Jan .2012 and Jan .2014 in our hospital were select‐ed and divided into the treatment group (50 cases ,enterostomy) and the control group (30 cases ,open abdominal cavity therapy) .Two groups of patients were compared for serum C‐reactive protein (CRP) and serum calcitonin (PCT) ,white blood cell count (WBC) levels and APACHE Ⅱ grading preoperatively and at 10 d postoperatively . Meanwhile ,two groups of patients were compared for mortality ,length of hospital stay ,operation time and post‐operative first farting time .RESULTS CRP and PCT and WBC levels were lower in the treatment group than in the control group at postoperative 10 d and the APACHE Ⅱ grade at 4 d was lower in the treatment group than in the control group .The mortality was 0 in the treatment group and 3 .3% in the control group .Mortality ,length of hospital stay and operation time were significently lower in the treatment group than in the control group (P<0 .05) .There was no significant difference in the postoperative first farting time between the two groups . CONCLUSION Enterostomy is simple to operation ,economical ,safe and fast to recover which can cut off abdomi‐nal cavity infections from sources and is worthy promoting in the treatment of bowel perforation complicated with abdominal cavity infections .%目的:探讨肠造口术在肠穿孔并发腹腔感染中的应用价值,以降低临床肠穿孔并发腹腔感染的发生率。方法选取2012年1月-2014年1月医院收治的80例肠穿孔腹腔感染患者,将其分为治疗组50例行肠造口术,对照组30例行腹腔开放疗法,对比两组患者术前及术后10 d血清C‐反应蛋白(CRP)、血清降钙素原(PCT )、白

  2. Experimental study on transplantation of microencapsulated peripheral nerve tissue into abdominal cavity%微囊化周围神经组织腹腔移植的实验研究

    Institute of Scientific and Technical Information of China (English)

    王雷; 蒋电明

    2008-01-01

    目的 观察微囊化周围神经组织移植体内后的生物活性,分析其在体内存活的时效. 方法 采用注射的方法 将微囊化周围神经组织移植到小鼠的腹腔. 结果 微囊化周围神经组织移植6周后,在小鼠的腹腔内保持了原有的形状和结构,囊内的细胞正常生存并保持增殖功能. 结论 微囊化神经组织可在体内保持活性至少6周,完善微囊化技术有望延长其存活时效,提高其促进神经损伤修复的效果.%Objective To study bioactivity of microencapsulated peripheral nerve tissue after transplanted into abdominal cavity and analyze the in vivo time-effect relation. Methods Microencap-sulated peripheral nerve tissues were injected into the abdominal cavity of mice. Results Microencap-sulated peripheral nerve could remain intact six months after transplantation. The peripheral nerve cells survived, with normal proliferation function. Conclusions Microencapsulated peripheral nerve tissues can remain bioactivity at least six weeks in vivo. Improved technique of microencapsulation may prolong bioactivity of microencapsulated peripheral nerve tissues and accordingly promote nerve regeneration fol-lowing peripheral nerve injury.

  3. 低渗热灌注腹腔化疗治疗胃肠肿瘤恶性腹水的临床研究%Clinical study on the effect of abdominal cavity chemotherapy by hot perfusion and sustained low losmaticpressure on malignant ascites caused by gastrointestinal tumors

    Institute of Scientific and Technical Information of China (English)

    杨光; 刘长安

    2001-01-01

    @@ Background:Malignant ascites,a commonly severe complication of gastrointestinal tumors,influence the quality of life and survival time of patients.A number of studies showed Intraperitoneal chemotherapy by hyperthermal perfusion with hot hypotonic liquids with unique drug kinematics was effective in treating primary and secondary tumors of abdominal cavity and preventing the metastasis.

  4. Mesh repair of hernias of the abdominal wall

    OpenAIRE

    2003-01-01

    textabstractA hernia of the abdominal wall is a permanent or intermittent protrusion of abdominal contents outside the abdominal cavity through a defect in the abdominal wall. Approximately 75% of all hernias occur in the inguinal region. Other types of hernias of the ventral abdominal wall are incisional, umbilical, epigastric and Spigelian hernia. In chapter 1 an overview of hernias of the abdominal wall is described. The incidence, clinical implications and treatment options and their comp...

  5. Identification of nanobacteria from blood and stool of rats suffering severe infection of abdominal cavity%SD大鼠严重腹腔感染前后血、粪纳米细菌的检测

    Institute of Scientific and Technical Information of China (English)

    郑永波; 吴承堂

    2004-01-01

    目的检测SD大鼠腹腔感染前后血、粪纳米细菌(nanobacteria,NB),探讨NB与严重腹腔感染的相关性.方法40只SD大鼠,通过盲肠结扎加穿孔法制作SD大鼠严重腹腔感染模型,分别于感染前后取血、粪标本进行电镜下观察;NB培养;NB 16S rRNA基因聚合酶链反应(polymerase chain reaction,pCR)扩增,电泳分析.结果电镜下观察NB,感染前、后血阳性率分别为17.5%和35.0%,P=0.118;感染前、后粪阳性率分别为40.0%和32.5%,P=0.250.经28 d培养,结果均未见有NB特异性白色沉淀物形成.PCR法检测NB 16SrRNA基因,感染前、后血阳性率分别为52.5%和90.0%,P=0.000;感染前、后粪阳性率均为95.0%.结论PCR法检测NB 16S rRNA基因,SD大鼠粪普遍阳性,腹腔感染前、后血阳性率差异有显著意义,其作用尚待进一步研究.%Objective: To detect nanobacteria (NB) from blood and stool of rats suffering severe infection of abdominal cavity. Methods: 40 SD rats were involved in the study. The severe infection models of abdominal cavity were made by cecal ligation plus puncture (CLP). The test samples of blood and stool were obtained before or after infected respectively and filtered through 0.22 μm filters to eradicate the general germs and cells. The samples were stained with phosphoric tungstic acid and observed with transmission electron microscopy (TEM). RPMI1640 culture with 10.0% fetal bovine serum (FBS) was added into the filtered samples for culturing NB. Polymerase chain reaction (PCR) was made with the primers that designed from the sequences of NB 16S rRNA gene recorded in the genebank (GenBank accession No. X98419) [1]. PCR products were analyzed by agarose gel electrophoresis. Results: NB was detected with TEM from some samples. The positive rates before and after CLP respectively were 17.5% and 35.0%in the blood samples (P=0.118), 40.0% and 32.5% in the stool samples (P=0.250). We failed to find any white precipitate in any culture bottle in 28 d

  6. Combined resection and multi-agent adjuvant chemotherapy for desmoplastic small round cell tumor arising in the abdominal cavity: Report of a case

    Institute of Scientific and Technical Information of China (English)

    Chang-Cheng Chang; Jun-Te Hsu; Jeng-Hwei Tseng; Tsann-Long Hwang; Han-Ming Chen; Yi-Yin Jan

    2006-01-01

    Desmoplastic small round cell tumor (DSRCT) is a rare,highly aggressive malignancy with distinctive histological features: a nesting pattern of cellular growth within dense desmoplastic stroma, occurring in young population with male predominance. The mean survival period is only about 1.5-2.5 years. The tumor has co-expressed epithelial, muscle, and neural markers in immunohistochemical studies. This work reports a 27-year-old man presenting with hematemesis and chronic constipation.Serial studies including endoscopy, upper gastrointestinal series, abdominal computed tomography and barium enema study showed disseminated involvement of visceral organs. The patient underwent aggressive surgery and received postoperative adjuvant chemotherapy consisting of 5-fluorouracil, cyclophosphamide,etoposide, doxorubicin, and cisplatin. He survived without any disease for 20 mo after the surgery. No standard treatment protocol has been established. Aggressive surgery combined with postoperative multi-agent adjuvant chemotherapy is justified not only to relieve symptoms but also to try to improve the outcome in this advanced DSRCT young patient.

  7. Abdominal pain

    Science.gov (United States)

    Stomach pain; Pain - abdomen; Belly ache; Abdominal cramps; Bellyache; Stomachache ... Almost everyone has pain in the abdomen at some point. Most of the time, it is not serious. How bad your pain is does not always reflect the seriousness ...

  8. Abdominal actinomycosis.

    Science.gov (United States)

    Wagenlehner, F M E; Mohren, B; Naber, K G; Männl, H F K

    2003-08-01

    Intra-abdominal and extraperitoneal actinomycosis are rare infections, caused by different Actinomyces species. However, they have been diagnosed more frequently in the last ten years. We report three cases of abdominal actinomycosis and a literature review of the last eight years. All three patients were diagnosed by means of histopathologic examination only. In one case, an intrauterine device (IUD) was associated with the infection. Therapy consisted of surgical resection of the inflammatory, infected tissue, and long-term antibiotic therapy. All patients are free of recurrence. Abdominal actinomycosis should be included in the differential diagnosis of an abdominal pathology of insidious onset, especially when an IUD is in place. Even when infection had spread extensively, combined operative and antibiotic therapy cured most of the cases.

  9. Morphological and molecular characterisation of Myxobolus pronini n. sp. (Myxozoa: Myxobolidae) from the abdominal cavity and visceral serous membranes of the gibel carp Carassius auratus gibelio (Bloch) in Russia and China.

    Science.gov (United States)

    Liu, Xin-Hua; Batueva, Marina-D; Zhao, Yuan-Li; Zhang, Jin-Yong; Zhang, Qian-Qian; Li, Tong-Tong; Li, Ai-Hua

    2016-10-25

    Myxozoa is a well-known economically and ecologically important group of metazoan parasites, phylogenetically related to Cnidaria. High diversity of myxosporeans has been recorded in Russia and China; however, most of the species were solely morphologically characterised. Here, we identified a new gibel carp-infecting Myxobolus species and morphologically and molecularly compared the Russian and Chinese isolates of this new myxosporean. Myxobolus pronini n. sp. was found free in the abdominal cavity of Carassius auratus gibelio (Bloch, 1782) in Lake Baikal watershed, Russia, and embedded in the visceral serous membranes of the same fish species in Lake Taibai, Hubei province, China. The morphometric data of the plasmodia and mature spores exhibited some differences between the Russian and Chinese isolates, but SSU rDNA sequences indicated that these two geographical isolates are conspecific. The mature spores from the two locations are obovate in frontal view, with wider anterior than posterior end and lemon-shaped in sutural view. Spores of the Russian isolate were 14.3-16.2 (mean 15.1 ± 0.2) μm long, 9.6-10.8 (10.1 ± 0.1) μm wide and 6.4-7.4 (6.7 ± 0.15) μm thick; those of the Chinese isolate were 13.8-15.6 (14.7 ± 0.24) μm long, 9.6-13.3 (9.6 ± 0.65) μm wide and 6.2-7.2 (6.6 ± 0.16) μm thick. The newly-generated rDNA sequences (including SSU rDNA, ITS and LSU rDNA) from the two isolates represented some variations within the intraspecific range. Homology search by BLAST showed that the newly obtained rDNA sequences do not match any sequences available on GenBank. Phylogenetic analysis based on the aligned partial SSU rDNA sequences indicated that this novel species clustered with several gibel carp-infecting Myxobolus spp. with round anterior end of spores. Additionally, phylogenetic analysis based on all obtained ITS sequences showed that distinct genetic geographical differentiation occurred for this new parasite. Myxobolus

  10. CT appearances of abdominal tuberculosis

    Energy Technology Data Exchange (ETDEWEB)

    Lee, W.-K., E-mail: leewk33@hotmail.com [Department of Medical Imaging, St Vincent' s Hospital, University of Melbourne, Fitzroy, Victoria (Australia); Van Tonder, F.; Tartaglia, C.J.; Dagia, C. [Department of Medical Imaging, St Vincent' s Hospital, University of Melbourne, Fitzroy, Victoria (Australia); Cazzato, R.L. [Department of Radiology, Universita Campus Bio-Medico di Roma, Rome (Italy); Duddalwar, V.A. [Department of Radiology, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, California (United States); Chang, S.D. [Department of Medical Imaging, Vancouver General Hospital, University of British Columbia, British Columbia (Canada)

    2012-06-15

    The purpose of this article is to review and illustrate the spectrum of computed tomography (CT) appearances of abdominal tuberculosis. Tuberculosis can affect any organ or tissue in the abdomen, and can be mistaken for other inflammatory or neoplastic conditions. The most common sites of tuberculosis in the abdomen include lymph nodes, genitourinary tract, peritoneal cavity and gastrointestinal tract. The liver, spleen, biliary tract, pancreas and adrenals are rarely affected, but are more likely in HIV-seropositive patients and in miliary tuberculosis. This article should alert the radiologist to consider abdominal tuberculosis in the correct clinical setting to ensure timely diagnosis and enable appropriate treatment.

  11. Open abdomen procedure in managing abdominal compartment syndrome in a child with severe fungal peritonitis and sepsis after gastric perforation

    Directory of Open Access Journals (Sweden)

    Wei Lai

    2016-04-01

    Full Text Available Abdominal compartment syndrome with increased abdominal pressure resulted in multi-organ dysfunctions can be lethal in children. The open abdomen procedure intentionally leaves the abdominal cavity open in patients with severe abdominal sepsis and abdominal compartment syndrome by temporarily relieving the abdominal pressure. We reported our experience of open abdomen procedure in successfully treating a 4-year old boy with abdominal compartment syndrome caused by severe fungal peritonitis and sepsis after gastric perforation.

  12. Abdominal Sepsis.

    Science.gov (United States)

    De Waele, Jan J

    2016-08-01

    Abdominal infections are an important challenge for the intensive care physician. In an era of increasing antimicrobial resistance, selecting the appropriate regimen is important and, with new drugs coming to the market, correct use is important more than ever before and abdominal infections are an excellent target for antimicrobial stewardship programs. Biomarkers may be helpful, but their exact role in managing abdominal infections remains incompletely understood. Source control also remains an ongoing conundrum, and evidence is increasing that its importance supersedes the impact of antibiotic therapy. New strategies such as open abdomen management may offer added benefit in severely ill patients, but more data are needed to identify its exact role. The role of fungi and the need for antifungal coverage, on the other hand, have been investigated extensively in recent years, but at this point, it remains unclear who requires empirical as well as directed therapy.

  13. Peritoneoscopy of the liver after abdominal surgery.

    Directory of Open Access Journals (Sweden)

    Kawaguchi,Kenji

    1983-02-01

    Full Text Available The incidence of intraperitoneal adhesion after abdominal surgery was studied. Peritoneoscopy was performed in 933 patients with liver diseases over the 6 year 5 month period from March 1974 to July 1980. Of the patients, 352 (37.7% had undergone an abdominal operation, and intraperitoneal adhesion was detected in 205 (58.2% of these patients. The liver was not observable in 5 out of 61 patients with adhesions after upper abdominal operations. Whereas, the liver was clearly observable in patients with lower abdominal operations in spite of adhesions. Out of the 581 patients without any abdominal operations, 30 patients (5.2% had adhesions in the abdominal cavity, and 6 of them had extensive adhesions that partially obscured the observation of liver surface. In all patients, peritoneoscopy was performed without complications by avoiding the surgical scar for puncture sites and ensuring a free air lumen before trocar puncture.

  14. Dental cavities

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/001055.htm Dental cavities To use the sharing features on this page, please enable JavaScript. Dental cavities are holes (or structural damage) in the ...

  15. Abdominal Aortic Aneurysm (AAA)

    Science.gov (United States)

    ... News Physician Resources Professions Site Index A-Z Abdominal Aortic Aneurysm (AAA) Abdominal aortic aneurysm (AAA) occurs when atherosclerosis ... an abdominal aortic aneurysm treated? What is an abdominal aortic aneurysm? The aorta, the largest artery in the body, ...

  16. Intra-abdominal gout mimicking pelvic abscess

    Energy Technology Data Exchange (ETDEWEB)

    Chen, Chia-Hui; Chen, Clement Kuen-Huang [Kaohsiung Veterans General Hospital, Department of Radiology, Kaohsiung (Taiwan); National Yang-Ming University, School of Medicine, Taipei (Taiwan); Yeh, Lee-Ren; Pan, Huay-Ban; Yang, Chien-Fang [Kaohsiung Veterans General Hospital, Department of Radiology, Kaohsiung (Taiwan)

    2005-04-01

    Gout is the most common crystal-induced arthritis. Gouty tophi typically deposit in the extremities, especially toes and fingers. We present an unusual case of intrapelvic tophaceous gout in a patient suffering from chronic gouty arthritis. CT and MRI of the abdomen and pelvic cavity disclosed calcified gouty tophi around both hips, and a cystic lesion with peripheral enhancement in the pelvic cavity along the course of the iliopsoas muscle. The intra-abdominal tophus mimicked pelvic abscess. (orig.)

  17. Acute spontaneous isolated dissection of abdominal aorta

    Directory of Open Access Journals (Sweden)

    Ali Akbar beigi

    2009-09-01

    Full Text Available

    • Aortic dissection occurs when the layers of the aorta separate as a result of extra luminal cavity of blood through an intimal tear. Dissection limited to the abdominal aorta is rare. Unfortunately, the appropriate management of dissecting aneurysm of abdominal aorta is not documented yet. A 43 years old man was admitted to Al-zahra hospital in Isfahan with sudden onset of periumbilical abdominal pain. CT scan confirmed infrarenal dissection of abdominal aorta. Performing laparotomy, aorta was repaired using bifurcate collagen-coated Dacron graft. Surgical intervention with synthetic graft is recommended in patients with dissecting aortic aneurysm of infrarenal segments where the extent of dissection is limited and accessible.
    • Keywords: Aneurysm, Aortic dissection, Aortic aneurysm abdominal surgery.

  18. Análise macroscópica infra-vermelha da difusão do óxido nitroso via inalatória para a cavidade abdominal, em ratos submetidos a pneumoperitônio Análisis macroscópica infrarroja de la difusión del óxido nitroso vía inhalatoria para la cavidad abdominal, en ratones sometidos a pneumoperitoneo Macroscopic infrared analysis of inhaled nitrous oxide diffusion to abdominal cavity in rats submitted to pneumoperitoneum

    Directory of Open Access Journals (Sweden)

    Daniel Colman

    2004-04-01

    con una fuente emisora de calor (resguardo caliente. Diversos autores han descrito la difusión del N2O para cavidades cerradas por métodos como cromatografia gaseosa y analizador de gases, que no permiten un estudio macroscópico detallado del gas. El presente estudio tubo como objetivo la filmación macroscópica en el espectro infrarrojo de la difusión de N2O, utilizado en anestesia inhalatoria, para la cavidad peritoneal de ratones sometidos a pneumoperitoneo de 20 mmHg con aire ambiente. MÉTODO: Los animales fueron divididos en tres grupos, de acuerdo con el anestésico utilizado: I- Control venoso: tiopental intra-peritoneal; II- Control inhalatorio: isoflurano a 1,2% en O2 100%; III- Óxido Nitroso: N2O 66% en oxígeno e isoflurano a 0,6%. Los termogramas provenientes de la descompresión abdominal fueron obtenidos, por medio de un radiómetro AGEMA 550 filmados a 7 cuadros por segundo. RESULTADOS: El N2O se demostró visible al infrarrojo. En el momento de la descompresión abdominal, no hubo en los grupos I y II termogramas con rastros de gases visibles al infrarrojo. Hubo, todavía, rastros de gases visibles al infrarrojo en el grupo III. CONCLUSIONES: Se concluye que el óxido nitroso inhalatorio a 66% se difundió para la cavidad peritoneal de ratones sometidos a pneumoperitoneo de 20 mmHg con aire ambiente, sin aumento de la presión intra-abdominal.BACKGROUND AND OBJECTIVES: Nitrous oxide (N2O, for its tri-atomic asymmetric structure, has high energy emission and absorption characteristics within the infrared spectrum, with maximum absorption at 4.5 µm, what makes it visible at short infrared, when contrasted with a heat emission source (hot support. Many authors have described N2O diffusion to closed cavities by chromatography methods and gas analyzers, which do not allow a detailed macroscopic study of the gas. This study aimed at macroscopically filming in the infrared spectrum inhaled N2O diffusion to the peritoneal cavity of rats submitted to 20

  19. [A young woman with acute abdominal pain

    NARCIS (Netherlands)

    Mooij, R.; Dillen, J. van

    2013-01-01

    A 17-year-old woman was operated in a Tanzanian hospital because of a suspected ruptured ectopic pregnancy. During laparatomy an interstitial ectopic pregnancy with an intact gestational sac was found. The ectopic pregnancy had ruptured into the abdominal cavity.

  20. accelerating cavity

    CERN Multimedia

    On the inside of the cavity there is a layer of niobium. Operating at 4.2 degrees above absolute zero, the niobium is superconducting and carries an accelerating field of 6 million volts per metre with negligible losses. Each cavity has a surface of 6 m2. The niobium layer is only 1.2 microns thick, ten times thinner than a hair. Such a large area had never been coated to such a high accuracy. A speck of dust could ruin the performance of the whole cavity so the work had to be done in an extremely clean environment.

  1. radiofrequency cavity

    CERN Multimedia

    1988-01-01

    The pulse of a particle accelerator. 128 of these radio frequency cavities were positioned around CERN's 27-kilometre LEP ring to accelerate electrons and positrons. The acceleration was produced by microwave electric oscillations at 352 MHz. The electrons and positrons were grouped into bunches, like beads on a string, and the copper sphere at the top stored the microwave energy between the passage of individual bunches. This made for valuable energy savings as it reduced the heat generated in the cavity.

  2. Laparoscopic surgery in children: abdominal wall complications

    Directory of Open Access Journals (Sweden)

    Vaccaro S.

    2017-06-01

    Full Text Available Minimal invasive surgery has become the standard of care for operations involving the thoracic and abdominal cavities for all ages. Laparoscopic complications can occur as well as more invasive surgical procedures and we can classify them into non-specific and specific. Our goal is to analyze the most influential available scientific literature and to expose important and recognized advices in order to reduce these complications. We examined the mechanism, risk factors, treatment and tried to outline how to prevent two major abdominal wall complications related to laparoscopy: bleeding and port site herniation .

  3. Analysis of the Utilization of Antibacterial Agents in Abdominal Cavity In-fection Patients%我院腹腔感染患者抗菌药应用分析

    Institute of Scientific and Technical Information of China (English)

    蔡惠惠; 王义俊; 王芮

    2014-01-01

    目的:调查分析我院腹腔感染患者的抗菌药使用情况,指导临床合理应用抗菌药物治疗腹腔感染。方法:抽查我院2014年1~7月份腹腔感染出院患者病历共220份,对抗菌药使用情况进行统计分析。结果:220份病历均使用了抗菌药,共涉及10类24种:单一用药92例(占41.8%),二联用药126例(占57.3%),三联用药2例(占0.91%)。应用的抗菌药物以头孢菌素类(含加酶抑制剂复合制剂)的使用率最高;其次为青霉素类(含加酶抑制剂复合制剂);排在第三位的是硝基咪唑类。以两联用药为主,联用类别主要为β-内酰胺类联合硝基咪唑类及β-内酰胺类联合喹诺酮类。平均用药时间5.57 d。进行细菌培养及药敏试验的病例有47例,检出的致病菌主要是革兰阴性菌,有大肠埃希菌、铜绿假单胞菌及肺炎克雷伯菌。结论:我院腹腔感染患者抗菌药应用基本合理,但也存在联合用药不合理、疗程超长等情况,应进一步加强管理。%Objective: To analyze the utilization of antibacterial agents in abdominal infection cases, and to provide guidance for rational use of antibacterial agents in the clinic. Methods: A total of 220 abdominal infection cases were collected in our hospital from January to July of 2014, and the data of antimicrobial agents use were statistically analyzed. Results: There were a total of 24 drugs of 10 categories used in 220 cases, with 92 cases using single drug (57.3%), 126 cases using two drugs (57.3%), and only two cases using three drugs (0.91%). The top three varieties of antibacterials included cephalosporins (with enzyme inhibitor compound preparations), penicillins (with enzyme inhibitor compound preparations) and nitroimidazoles. Two drugs combination was the main application in the antimicrobial drugs, the main combination types were β-lactam+quinolones and β-lactam+ nitroimidazoles. The average

  4. Abdominal radiation - discharge

    Science.gov (United States)

    Radiation - abdomen - discharge; Cancer - abdominal radiation; Lymphoma - abdominal radiation ... When you have radiation treatment for cancer, your body goes through changes. About 2 weeks after radiation treatment starts, you might notice changes ...

  5. Abdominal and Pelvic CT

    Medline Plus

    Full Text Available ... accurate. In emergency cases, it can reveal internal injuries and bleeding quickly enough to help save lives. ... kidney and bladder stones. abdominal aortic aneurysms (AAA), injuries to abdominal organs such as the spleen, liver, ...

  6. Abdominal and Pelvic CT

    Medline Plus

    Full Text Available ... accurate. In emergency cases, it can reveal internal injuries and bleeding quickly enough to help save lives. ... kidney and bladder stones. abdominal aortic aneurysms (AAA), injuries to abdominal organs such as the spleen, liver, ...

  7. Abdominal aortic aneurysm

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/000162.htm Abdominal aortic aneurysm To use the sharing features on this page, ... blood to the abdomen, pelvis, and legs. An abdominal aortic aneurysm occurs when an area of the aorta becomes ...

  8. Post trauma abdominal cocoon.

    Science.gov (United States)

    Kaur, Supreet; Doley, Rudra Prasad; Chabbhra, Mohinish; Kapoor, Rajeev; Wig, Jaidev

    2015-01-01

    Abdominal cocoon or sclerosing peritonitis refers to a rare cause of intestinal obstruction due to formation of a membrane encasing the bowel. We report a case of abdominal cocoon post blunt trauma abdomen. The patient presented with a history of subacute intestinal obstruction and a mobile abdomen lump. Abdominal cocoon was diagnosed on computed tomography. He underwent adhesiolysis with excision of membrane.

  9. Abdominal wall fat pad biopsy

    Science.gov (United States)

    Amyloidosis - abdominal wall fat pad biopsy; Abdominal wall biopsy; Biopsy - abdominal wall fat pad ... method of taking an abdominal wall fat pad biopsy . The health care provider cleans the skin on ...

  10. Torsion of a parasitic myoma that developed after abdominal myomectomy

    OpenAIRE

    Cho, In Ae; Baek, Jong Chul; Park, Ji Kwon; Song, Dae Hyun; Kim, Wan Ju; Lee, Yoon Kyoung; Park, Ji Eun; Shin, Jeong Kyu; Choi, Won Jun; Lee, Soon Ae; Lee, Jong Hak; Paik, Won Young

    2016-01-01

    Iatrogenic parasitic myomas are rare. The condition is defined by the presence of multiple smooth-muscle tumorous nodules in the peritoneal cavity. This may be attributable to seeding of myoma particles during uterine surgery. The clinical course is usually indolent. The disease is often asymptomatic and is usually discovered only incidentally. A 38-year-old woman who had undergone abdominal myomectomy 7 months prior presented with acute abdominal pain and a huge pelvic mass. We performed exp...

  11. Cavity magnomechanics

    Science.gov (United States)

    Zou, Chang-Ling; Zhang, Xufeng; Jiang, Liang; Tang, Hong

    2016-05-01

    Recently, cavity magnonics has attracted much attention for potential applications of coherent information transduction and hybrid quantum devices. The magnon is a collective spin wave excitation in ferromagnetic material. It is magnetically tunability, with long coherence time and non-reciprocical interaction with electro-magnetic fields. We report the coherent coupling between magnon, microwave photon and phonon. First, we demonstrate strong coupling and ultrastrong coupling between the magnon in YIG sphere and microwave photon in three-dimensional cavity. Then, based on the hybridized magnon-photon modes, we observe the triply resonant magnon-mcirowave photon-phonon coupling, where the ultrahigh-Q mechanical vibration of YIG sphere is dispersively coupled with the magnon via magnetostrictive interaction. We observe interesting phenomena, including electromagnetically induced transparency/absorption and parametric amplification. In particular, benefit from the large tunability of the magnon, we demonstrate a tunable microwave amplifier with gain as high as 30 dB. The single crystal YIG also has excellent optical properties, and thus provide a unique platform bridging MHz, GHz and THz information carriers. Finally, we present the latest progress towards coherent magnon to optical photon conversion.

  12. [Intestinal occlusion and abdominal compartment syndrome (ACS)].

    Science.gov (United States)

    Stagnitti, Franco

    2009-01-01

    Intestinal occlusion is defined as an independent predictive factor of intra-abdominal hypertension (IAH) which represents an independent predictor of mortality. Baggot in 1951 classified patients operated with intestinal occlusion as being at risk for IAH ("abdominal blow-out"), recommending them for open abdomen surgery proposed by Ogilvie. Abdominal surgery provokes IAH in 44.7% of cases with mortality which, in emergency, triples with respect to elective surgery (21.9% vs 6.8%). In particular, IAH is present in 61.2% of ileus and bowel distension and is responsible for 52% of mortality (54.8% in cases with intra-abdominal infection). These patients present with an increasing intra-abdominal pressure (IAP) which, over 20-25 mmHg, triggers an Abdominal Compartment Syndrome (ACS) with altered functions in some organs arriving at Multiple Organ Dysfunction Syndrome (MODS). The intestine normally covers 58% of abdominal volume but when there is ileus distension, intestinal pneumatosis develops (third space) which can occupy up to 90% of the entire cavity. At this moment, Gastro Intestinal Failure (GIF) can appear, which is a specific independent risk factor of mortality, motor of "Organ Failure". The pathophysiological evolution has many factors in 45% of cases: intestinal pneumatosis is associated with mucosal and serous edema, capillary leakage with an increase in extra-cellular volume and peritoneal fluid collections (fourth space). The successive loss of the mucous barrier permits a bacterial translocation which includes bacteria, toxins, pro-inflammatory factors and oxygen free radicals facilitating the passage from an intra-abdominal to inter-systemic vicious cyrcle. IAH provokes the raising of the diaphragm, and vascular and visceral compressions which induce hypertension in the various spaces with compartmental characteristics. These trigger hypertension in the renal, hepatic, pelvic, thoracic, cardiac, intracranial, orbital and lower extremity areas, giving

  13. Abdominal epilepsy in chronic recurrent abdominal pain

    Directory of Open Access Journals (Sweden)

    V Y Kshirsagar

    2012-01-01

    Full Text Available Background: Abdominal epilepsy (AE is an uncommon cause for chronic recurrent abdominal pain in children and adults. It is characterized by paroxysmal episode of abdominal pain, diverse abdominal complaints, definite electroencephalogram (EEG abnormalities and favorable response to the introduction of anti-epileptic drugs (AED. We studied 150 children with chronic recurrent abdominal pain and after exclusion of more common etiologies for the presenting complaints; workup proceeded with an EEG. We found 111 (74% children with an abnormal EEG and 39 (26% children with normal EEG. All children were subjected to AED (Oxcarbazepine and 139 (92% children responded to AED out of which 111 (74% children had an abnormal EEG and 27 (18% had a normal EEG. On further follow-up the patients were symptom free, which helped us to confirm the clinical diagnosis. Context: Recurrent chronic abdominal pain is a common problem encountered by pediatricians. Variety of investigations are done to come to a diagnosis but a cause is rarely found. In such children diagnosis of AE should be considered and an EEG will confirm the diagnosis and treated with AED. Aims: To find the incidence of AE in children presenting with chronic recurrent abdominal pain and to correlate EEG findings and their clinical response to empirical AEDs in both cases and control. Settings and Design: Krishna Institute of Medical Sciences University, Karad, Maharashtra, India. Prospective analytical study. Materials and Methods: A total of 150 children with chronic recurrent abdominal pain were studied by investigations to rule out common causes of abdominal pain and an EEG. All children were then started with AED oxycarbamezepine and their response to the treatment was noted. Results: 111 (74% of the total 150 children showed a positive EEG change suggestive of epileptogenic activity and of which 75 (67.56% were females and 36 (32.43% were male, majority of children were in the age of group of 9

  14. A New Etiology for the Abdominal Compartment Syndrome: Pseudomyxoma Peritonei

    Directory of Open Access Journals (Sweden)

    Charles Sabbagh

    2015-09-01

    Full Text Available Pseudomyxoma peritonei (PMP is a rare diagnosis with an incidence of 1-2 per million. Most cases originate from an appendix which ruptures and releases mucin into the peritoneal cavity. The progression of the disease results in obstruction and cutaneous leak. Abdominal compartment syndrome is an uncommon complication of peritoneal pseudomyxoma. In the present article, we report the case of a patient with PMP and abdominal compartment syndrome. A laparotomy to decrease the abdominal pressure was performed. Three months later, a peritonectomy with hyperthermic intraperitoneal chemotherapy was performed. The patient was still alive 1 year after the procedure without any recurrence. In conclusion, acute abdominal pain and respiratory failure in patients with peritoneal PMP should lead to the measurement of the abdominal pressure but are not a contra indication for curative treatment of PMP.

  15. Diagnostic problems of abdominal desmoid tumors in various locations

    Energy Technology Data Exchange (ETDEWEB)

    Kreuzberg, B. [Department of Diagnostic Radiology, Faculty Hospital and Medical Faculty of Charles University, Alej Svobody 80, 30460 Pilsen (Czech Republic)]. E-mail: kreuzberg@fnplzen.cz; Koudelova, J. [Department of Diagnostic Radiology, Faculty Hospital and Medical Faculty of Charles University, Alej Svobody 80, 30460 Pilsen (Czech Republic); Ferda, J. [Department of Diagnostic Radiology, Faculty Hospital and Medical Faculty of Charles University, Alej Svobody 80, 30460 Pilsen (Czech Republic); Treska, V. [Department of Surgery, Faculty Hospital and Medical Faculty of Charles University, Alej Svobody 80, 30460 Pilsen (Czech Republic); Spidlen, V. [Department of Surgery, Faculty Hospital and Medical Faculty of Charles University, Alej Svobody 80, 30460 Pilsen (Czech Republic); Mukensnabl, P. [Sikl' s Department of Pathology, Faculty Hospital and Medical Faculty of Charles University, Alej Svobody 80, 30460 Pilsen (Czech Republic)

    2007-05-15

    Background: Abdominal desmoid tumor is one of the forms of deep (musculoaponeurotic) fibromatosis. It occurs more often as a desmoid tumor in the abdominal wall, less often in various intra-abdominal locations. In this work, we performed retrospective study concerning diagnostic problems of this disease with the use of imaging techniques. Method: Four patients (three females and one male) were examined by postcontrast CT (computed tomography) and one of them also by MR (magnetic resonance). All findings were correlated with the operational findings and histologic examination. Results: The findings were typical only in the case with the lesion located in the abdominal wall, three described cases of the intra-abdominal desmoid provided a broad range of differentially diagnostic possibilities (metastases, GIT tumors, lymphomas, etc.). In particular, the findings in infiltrative processes in intra-abdominal location and retroperitoneal involvement were less typical. Ultimately, the histological findings were decisive. Conclusion: The possibility of the occurrence of intra-abdominal desmoid tumor must be considered particularly in younger individuals with rapidly growing tumorous process, which does not immediately arise from the surrounding organs (digestive tract, internal genitalia, etc.), and is located in the abdominal wall or in the abdominal cavity.

  16. Abdominal Decompression in Children

    Directory of Open Access Journals (Sweden)

    J. Chiaka Ejike

    2012-01-01

    Full Text Available Abdominal compartment syndrome (ACS increases the risk for mortality in critically ill children. It occurs in association with a wide variety of medical and surgical diagnoses. Management of ACS involves recognizing the development of intra-abdominal hypertension (IAH by intra-abdominal pressure (IAP monitoring, treating the underlying cause, and preventing progression to ACS by lowering IAP. When ACS is already present, supporting dysfunctional organs and decreasing IAP to prevent new organ involvement become an additional focus of therapy. Medical management strategies to achieve these goals should be employed but when medical management fails, timely abdominal decompression is essential to reduce the risk of mortality. A literature review was performed to understand the role and outcomes of abdominal decompression among children with ACS. Abdominal decompression appears to have a positive effect on patient survival. However, prospective randomized studies are needed to fully understand the indications and impact of these therapies on survival in children.

  17. Post trauma abdominal cocoon

    Directory of Open Access Journals (Sweden)

    Supreet Kaur

    2015-01-01

    Full Text Available Abdominal cocoon or sclerosing peritonitis refers to a rare cause of intestinal obstruction due to formation of a membrane encasing the bowel. We report a case of abdominal cocoon post blunt trauma abdomen. The patient presented with a history of subacute intestinal obstruction and a mobile abdomen lump. Abdominal cocoon was diagnosed on computed tomography. He underwent adhesiolysis with excision of membrane.

  18. Abdominal Compartment Syndrome

    Directory of Open Access Journals (Sweden)

    Pınar Zeyneloğlu

    2015-04-01

    Full Text Available Intraabdominal hypertension and Abdominal compartment syndrome are causes of morbidity and mortality in critical care patients. Timely diagnosis and treatment may improve organ functions. Intra-abdominal pressure monitoring is vital during evaluation of the patients and in the management algorithms. The incidence, definition and risk factors, clinical presentation, diagnosis and management of intraabdominal hypertension and Abdominal compartment syndrome were reviewed here.

  19. Cavities/Tooth Decay

    Science.gov (United States)

    Cavities/tooth decay Overview By Mayo Clinic Staff Cavities are permanently damaged areas in the hard surface of your teeth ... into tiny openings or holes. Cavities, also called tooth decay or caries, are caused by a combination of ...

  20. Intra-Abdominal Hypertension and Abdominal Compartment Syndrome after Abdominal Wall Reconstruction: Quaternary Syndromes?

    Science.gov (United States)

    Kirkpatrick, A W; Nickerson, D; Roberts, D J; Rosen, M J; McBeth, P B; Petro, C C; Berrevoet, Frederik; Sugrue, M; Xiao, Jimmy; Ball, C G

    2017-06-01

    Reconstruction with reconstitution of the container function of the abdominal compartment is increasingly being performed in patients with massive ventral hernia previously deemed inoperable. This situation places patients at great risk of severe intra-abdominal hypertension and abdominal compartment syndrome if organ failure ensues. Intra-abdominal hypertension and especially abdominal compartment syndrome may be devastating systemic complications with systematic and progressive organ failure and death. We thus reviewed the pathophysiology and reported clinical experiences with abnormalities of intra-abdominal pressure in the context of abdominal wall reconstruction. Bibliographic databases (1950-2015), websites, textbooks, and the bibliographies of previously recovered articles for reports or data relating to intra-abdominal pressure, intra-abdominal hypertension, and the abdominal compartment syndrome in relation to ventral, incisional, or abdominal hernia repair or abdominal wall reconstruction. Surgeons should thus consider and carefully measure intra-abdominal pressure and its resultant effects on respiratory parameters and function during abdominal wall reconstruction. The intra-abdominal pressure post-operatively will be a result of the new intra-peritoneal volume and the abdominal wall compliance. Strategies surgeons may utilize to ameliorate intra-abdominal pressure rise after abdominal wall reconstruction including temporizing paralysis of the musculature either temporarily or semi-permanently, pre-operative progressive pneumoperitoneum, permanently removing visceral contents, or surgically releasing the musculature to increase the abdominal container volume. In patients without complicating shock and inflammation, and in whom the abdominal wall anatomy has been so functionally adapted to maximize compliance, intra-abdominal hypertension may be transient and tolerable. Intra-abdominal hypertension/abdominal compartment syndrome in the specific setting of

  1. Pathways of peritoneal tumour recurrence after abdominal surgical trauma

    NARCIS (Netherlands)

    M.E.E. van Rossen (Marie Elma)

    2000-01-01

    textabstractThe peritoneum is the largest and the most complex arranged serous membrane in the body that lines both the intra-abdominal wall and the viscera contained within the peritoneal cavity. It is capable of walling off infections and has several functions such as the ability to synthesise, se

  2. Differences in abdominal force between conventional and single port laparoscopy

    NARCIS (Netherlands)

    Sun, S.; Dankelman, J.; Horeman, T.

    2013-01-01

    In laparoendoscopic single-site surgery (LESS), only one single incision is used to introduce all instruments into the abdominal cavity. The introduction of multi-channel single-port devices enabled insertion of laparoscopic instruments and laparoscope through one single entry point instead of multi

  3. Recurrent Abdominal Pain

    Science.gov (United States)

    Banez, Gerard A.; Gallagher, Heather M.

    2006-01-01

    The purpose of this article is to provide an empirically informed but clinically oriented overview of behavioral treatment of recurrent abdominal pain. The epidemiology and scope of recurrent abdominal pain are presented. Referral process and procedures are discussed, and standardized approaches to assessment are summarized. Treatment protocols…

  4. [Abdominal pregnancy, institutional experience].

    Science.gov (United States)

    Bonfante Ramírez, E; Bolaños Ancona, R; Simón Pereyra, L; Juárez García, L; García-Benitez, C Q

    1998-07-01

    Abdominal pregnancy is a rare entity, which has been classified as primary or secondary by Studiford criteria. A retrospective study, between January 1989 and December 1994, realized at Instituto Nacional de Perinatología, found 35,080 pregnancies, from which 149 happened to be ectopic, and 6 of them were abdominal. All patients belonged to a low income society class, age between 24 and 35 years, and average of gestations in 2.6. Gestational age varied from 15 weeks to 32.2 weeks having only one delivery at term with satisfactory postnatal evolution. One patient had a recurrent abdominal pregnancy, with genital Tb as a conditional factor. Time of hospitalization varied from 4 to 5 days, and no further patient complications were reported. Fetal loss was estimated in 83.4%. Abdominal pregnancy is often the sequence of a tubarian ectopic pregnancy an when present, it has a very high maternal mortality reported in world literature, not found in this study. The stated frequency of abdominal pregnancy is from 1 of each 3372, up to 1 in every 10,200 deliveries, reporting in the study 1 abdominal pregnancy in 5846 deliveries. The study had two characteristic entities one, the recurrence and two, the delivery at term of one newborn. Abdominal pregnancy accounts for 4% of all ectopic pregnancies. Clinical findings in abdominal pregnancies are pain, transvaginal bleeding and amenorrea, being the cardinal signs of ectopic pregnancy.

  5. Experimental studies on the relationship between nanobacteria translocation and SIRS of rats which suffering critical infection of abdominal cavity%严重腹腔感染时血、粪纳米细菌的检测及其与SIRS关系的实验研究

    Institute of Scientific and Technical Information of China (English)

    黄美泰; 伍颖君; 郑永波; 钟俊新; 段雪飞; 李晶晶; 吴承堂

    2013-01-01

    Objective To explore the relationship between nanobacteria(NB) translocation from blood and stool and SIRS of rats suffering critical infection of abdominal cavity. Methods Forty SD rats were involved in the study. The models of critical abdominal cavity infection were made by cecal ligation plus puncture (CLP). The test samples of blood and stool were obtained before and two days after infected, respectively. The samples were cultured with NB culture medium and identified by transmission electron microscopy (TEM). The morphological change of the pathologic lesion in the ileum tissue of the rats were observed. Results Two days after infected, it showed epithelia abscission and tight junction loosening in some area of intestinal mucosa of the rats. Compared with preoperative, the average rectal temperature (℃) of the experimental group rats was higher significantly (39.98±0.43 vs 38.37±0.34,t=18.538,P<0.01), and the average numer of leukocyte (×109/L) was higher significantly(21.13±3.27 vs 10.43±2.23, t= 15.909, P<0.01) at postoperative 2 d. The positive rates of NB were 17.5%and 42.5%(χ2=5.952, P=0.015) in the blood samples before and after CLP 2 d respectively by TEM, and that were 90.0%and 92.5%(χ2=0.156, P=0.692) in the stool. Conclusion The positive rates of NB increases in the blood samples, which may be associated with SIRS induced by critical abdominal cavity infection.%目的探讨严重腹腔感染时血、粪中纳米细菌(nanobacteria, NB)的检测情况及其与全身炎症反应综合征(SIRS)的关系。方法40只SD大鼠采用盲肠结扎加穿孔手术(CLP)制作严重腹腔感染模型,分别于术前、术后2 d取血、粪标本进行NB培养,电镜下观察NB并加以鉴定。另取回肠组织作病理观察。结果造模后的大鼠符合SIRS标准,病理观察肠黏膜层部分区域有黏膜上皮脱落,肠上皮细胞间紧密连接出现异常,结构松弛。与CLP手术前比较,术后2 d

  6. Abdominal hernias: Radiological features

    Science.gov (United States)

    Lassandro, Francesco; Iasiello, Francesca; Pizza, Nunzia Luisa; Valente, Tullio; Stefano, Maria Luisa Mangoni di Santo; Grassi, Roberto; Muto, Roberto

    2011-01-01

    Abdominal wall hernias are common diseases of the abdomen with a global incidence approximately 4%-5%. They are distinguished in external, diaphragmatic and internal hernias on the basis of their localisation. Groin hernias are the most common with a prevalence of 75%, followed by femoral (15%) and umbilical (8%). There is a higher prevalence in males (M:F, 8:1). Diagnosis is usually made on physical examination. However, clinical diagnosis may be difficult, especially in patients with obesity, pain or abdominal wall scarring. In these cases, abdominal imaging may be the first clue to the correct diagnosis and to confirm suspected complications. Different imaging modalities are used: conventional radiographs or barium studies, ultrasonography and Computed Tomography. Imaging modalities can aid in the differential diagnosis of palpable abdominal wall masses and can help to define hernial contents such as fatty tissue, bowel, other organs or fluid. This work focuses on the main radiological findings of abdominal herniations. PMID:21860678

  7. Gastrointestinal causes of abdominal pain.

    Science.gov (United States)

    Marsicano, Elizabeth; Vuong, Giao Michael; Prather, Charlene M

    2014-09-01

    Gastrointestinal causes of abdominal pain are numerous. These causes are reviewed in brief here, divided into 2 categories: acute abdominal pain and chronic abdominal pain. They are further subcategorized by location of pain as it pertains to the abdomen.

  8. [Inflammatory abdominal aortic aneurysm].

    Science.gov (United States)

    Ziaja, K; Sedlak, L; Urbanek, T; Kostyra, J; Ludyga, T

    2000-01-01

    The reported incidence of inflammatory abdominal aortic aneurysm (IAAA) is from 2% to 14% of patients with abdominal aortic aneurysm and the etiology of this disease is still discussed--according to the literature several pathogenic theories have been proposed. From 1992 to 1997 32 patients with IAAA were operated on. The patients were mostly symptomatic--abdominal pain was present in 68.75% cases, back pain in 31.25%, fever in 12.5% and weight loss in 6.25% of the operated patients. In all the patients ultrasound examination was performed, in 4 patients CT and in 3 cases urography. All the patients were operated on and characteristic signs of inflammatory abdominal aortic aneurysm like: thickened aortic wall, perianeurysmal infiltration or retroperitoneal fibrosis with involvement of retroperitoneal structures were found. In all cases surgery was performed using transperitoneal approach; in three cases intraoperatively contiguous abdominal organs were injured, which was connected with their involvement into periaortic inflammation. In 4 cases clamping of the aorta was done at the level of the diaphragmatic hiatus. 3 patients (9.37%) died (one patient with ruptured abdominal aortic aneurysm). Authors present diagnostic procedures and the differences in the surgical tactic, emphasizing the necessity of the surgical therapy in patients with inflammatory abdominal aortic aneurysm.

  9. Hydatidosis of the Pelvic Cavity: A Big Masquerade

    Directory of Open Access Journals (Sweden)

    Peyman Varedi

    2008-01-01

    Full Text Available We report and discuss a case of primary hydatidosis of the pelvic cavity in a woman who presented with severe weight loss and abdominal pain. This unusual presentation was initially considered as a tumor process until surgical exploration and microscopic studies confirmed the diagnosis. The gynecologists should be aware of possibility of primary hydatid cyst of the pelvic cavity and should be considered in the differential diagnosis of cystic pelvic masses, especially in areas where the disease is endemic.

  10. [Clinical and imaging features of abdominal rhabdomyosarcoma of non-organ origin in children].

    Science.gov (United States)

    Shi, J; Du, J; Wu, W; Wang, Q

    2016-11-23

    Objective: To evaluate the clinical and imaging features of abdominal rhabdomyosarcoma of non-organ origin in children. Methods: We retrospectively analyzed the clinical and imaging features of 12 pediatric patients with abdominal rhabdomyosarcoma confirmed by surgery and pathology at our hospital. Results: There were 9 boys and 3 girls, with an average age of (5.47±3.92) years old (range, 1 to 15). According to Intergroup Rhabdomyosarcoma Study (IRS) staging system, they were of stage Ⅲ to stage Ⅳ, and most were of embryonal type. Tumors of 7 cases were located in the pelvic cavity, 2 cases in the abdominal cavity, 1 in the retroperitoneal space, 1 in both the abdominal and pelvic cavities and 1 across the retroperitoneal space, and abdominal and pelvic cavities. Gray-scale ultrasound showed moderate inhomogeneous echo structure and color Doppler flow imaging showed rich blood flow signals. CT plain scan showed masses of iso- or low-density, and the contrast-enhanced scan showed lesions with inhomogeneous enhancement. The enhancement in delay scan was more obvious and the peripheral enhancement was more significant than central enhancement. Conclusions: Childhood abdominal rhabdomyosarcoma of non-organ origin may arise from the peritoneum, be commonly seen in boys younger than 10 years old, more likely located in the pelvic cavity, and embryonal rhabdomyosarcoma is the most common histological variant seen in childhood. Ultrasound and CT imaging can provide useful information for diagnosis and differential diagnosis of this tumor.

  11. Congenital Abdominal Wall Defects

    DEFF Research Database (Denmark)

    Risby, Kirsten; Jakobsen, Marianne Skytte; Qvist, Niels

    2016-01-01

    complications were seen in five (15%) children: four had detachment of the mesh and one patient developed abdominal compartment syndrome. Mesh related clinical infection was observed in five children. In hospital mortality occurred in four cases (2 gastroschisis and 2 omphalocele) and was not procedure......OBJECTIVE: To evaluate the clinical utility of GORE® DUALMESH (GDM) in the staged closure of large congenital abdominal wall defects. MATERIALS AND METHODS: Data of patients with congenital abdominal wall defects managed with GDM was analyzed for outcome regarding complete fascial closure; mesh...

  12. Abdominal wall endometriosis.

    Science.gov (United States)

    Upadhyaya, P; Karak, A K; Sinha, A K; Kumar, B; Karki, S; Agarwal, C S

    2010-01-01

    Endometriosis of abdominal wall scar following operation on uterus and tubes is extremely rare. The late onset of symptoms after surgery is the usual cause of misdiagnosis. Scar endometriosis is a rare disease which is difficult to diagnose and should always be considered as a differential diagnosis of painful abdominal masses in women. The diagnosis is made only after excision and histopathology of the lesion. Preoperative differentials include hernia, lipoma, suture granuloma or abscess. Hence an awareness of the entity avoids delay in diagnosis, helps clinicians to a more tailored treatment and also avoids unnecessary referrals. We report a case of abdominal endometriosis. The definitive diagnosis of which was established by histopathological studies.

  13. Crab Cavity Development

    CERN Document Server

    Calaga, R; Burt, G; Ratti, A

    2015-01-01

    The HL-LHC upgrade will use deflecting (or crab) cavities to compensate for geometric luminosity loss at low β* and non-zero crossing angle. A local scheme with crab cavity pairs across the IPs is used employing compact crab cavities at 400 MHz. Design of the cavities, the cryomodules and the RF system is well advanced. The LHC crab cavities will be validated initially with proton beam in the SPS.

  14. Torsion of a parasitic myoma that developed after abdominal myomectomy.

    Science.gov (United States)

    Cho, In Ae; Baek, Jong Chul; Park, Ji Kwon; Song, Dae Hyun; Kim, Wan Ju; Lee, Yoon Kyoung; Park, Ji Eun; Shin, Jeong Kyu; Choi, Won Jun; Lee, Soon Ae; Lee, Jong Hak; Paik, Won Young

    2016-01-01

    Iatrogenic parasitic myomas are rare. The condition is defined by the presence of multiple smooth-muscle tumorous nodules in the peritoneal cavity. This may be attributable to seeding of myoma particles during uterine surgery. The clinical course is usually indolent. The disease is often asymptomatic and is usually discovered only incidentally. A 38-year-old woman who had undergone abdominal myomectomy 7 months prior presented with acute abdominal pain and a huge pelvic mass. We performed exploratory laparotomy. A parasitic mass 17 cm in diameter with a twisted omental pedicle was identified. En bloc excision of the mass and omentum was performed, followed by total abdominal hysterectomy. Histopathological examination of multiple sections revealed features compatible with an infarcted leiomyoma. Thus, we present a very rare case of an iatrogenic, rapidly growing parasitic myoma complicated by omental torsion (which caused the acute abdominal pain). We also offer a literature review.

  15. Abdominal tuberculosis: Imaging features

    Energy Technology Data Exchange (ETDEWEB)

    Pereira, Jose M. [Department of Radiology, Hospital de S. Joao, Porto (Portugal)]. E-mail: jmpjesus@yahoo.com; Madureira, Antonio J. [Department of Radiology, Hospital de S. Joao, Porto (Portugal); Vieira, Alberto [Department of Radiology, Hospital de S. Joao, Porto (Portugal); Ramos, Isabel [Department of Radiology, Hospital de S. Joao, Porto (Portugal)

    2005-08-01

    Radiological findings of abdominal tuberculosis can mimic those of many different diseases. A high level of suspicion is required, especially in high-risk population. In this article, we will describe barium studies, ultrasound (US) and computed tomography (CT) findings of abdominal tuberculosis (TB), with emphasis in the latest. We will illustrate CT findings that can help in the diagnosis of abdominal tuberculosis and describe imaging features that differentiate it from other inflammatory and neoplastic diseases, particularly lymphoma and Crohn's disease. As tuberculosis can affect any organ in the abdomen, emphasis is placed to ileocecal involvement, lymphadenopathy, peritonitis and solid organ disease (liver, spleen and pancreas). A positive culture or hystologic analysis of biopsy is still required in many patients for definitive diagnosis. Learning objectives:1.To review the relevant pathophysiology of abdominal tuberculosis. 2.Illustrate CT findings that can help in the diagnosis.

  16. [The abdominal catastrophe].

    Science.gov (United States)

    Seiler, Christian A

    2011-08-01

    Patients with an abdominal catastrophe are in urgent need of early, interdisciplinary medical help. The treatment plan should be based on medical priorities and clear leadership. First priority should be given to achieve optimal oxygenation of blood and stabilization of circulation during all treatment-phases. The sicker the patient, the less invasive the (surgical) treatment should to be, which means "damage control only". This short article describes 7 important, pragmatic rules that will help to increase the survival of a patient with an abdominal catastrophe. Preexisting morbidity and risk factors must be included in the overall risk-evaluation for every therapeutic intervention. The challenge in patients with an abdominal catastrophe is to carefully balance the therapeutic stress and the existing resistance of the individual patient. The best way to avoid abdominal disaster, however, is its prevention.

  17. Abdominal and Pelvic CT

    Medline Plus

    Full Text Available ... contrast materials and a metallic taste in your mouth that lasts for at most a minute or ... can diagnose many causes of abdominal pain or injury from trauma with very high accuracy, enabling faster ...

  18. Abdominal x-ray

    Science.gov (United States)

    ... are, or may be, pregnant. Alternative Names Abdominal film; X-ray - abdomen; Flat plate; KUB x-ray ... Assistant Studies, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also ...

  19. Abdominal and Pelvic CT

    Medline Plus

    Full Text Available ... often used to determine the cause of unexplained pain. CT scanning is fast, painless, noninvasive and accurate. ... help diagnose the cause of abdominal or pelvic pain and diseases of the internal organs, small bowel ...

  20. Abdominal and Pelvic CT

    Medline Plus

    Full Text Available ... is done because a potential abnormality needs further evaluation with additional views or a special imaging technique. ... GI) contrast exams and ultrasound are preferred for evaluation of acute abdominal conditions in babies, such as ...

  1. Abdominal ultrasound (image)

    Science.gov (United States)

    Abdominal ultrasound is a scanning technique used to image the interior of the abdomen. Like the X-ray, MRI, ... it has its place as a diagnostic tool. Ultrasound scans use high frequency sound waves to produce ...

  2. Abdominal exploration - slideshow

    Science.gov (United States)

    ... ency/presentations/100049.htm Abdominal exploration - series—Normal anatomy To use the ... Overview The abdomen contains many vital organs: the stomach, the small intestine (jejunum and ileum), the large ...

  3. Abdominal and Pelvic CT

    Medline Plus

    Full Text Available ... is done because a potential abnormality needs further evaluation with additional views or a special imaging technique. ... GI) contrast exams and ultrasound are preferred for evaluation of acute abdominal conditions in babies, such as ...

  4. Linear abdominal trauma.

    Science.gov (United States)

    Danto, L A; Wolfman, E F

    1976-03-01

    Three cases of blunt abdominal trauma are presented to exemplify the mechanism of trauma and the problems of diagnosis associated with any linear blow to the abdomen. The mechanisms of visceral injury are reviewed, and special attention is directed to the abdominal wall injury that can be present in these patients. This injury has special implications in directing the operative approach and repair. An unusual aortic occlusion is described which is peculiar to this type of injury.

  5. Ventral Abdominal Hernia

    Directory of Open Access Journals (Sweden)

    Georgi Tchernev

    2017-08-01

    Full Text Available A 63-year-old Caucasian female patient presented with redness of the both foot and lower legs, as well as edema of the left lower leg, accompanied by subjective complaints of burning. Fever was not reported. Well-circumscribed oval shaped tumor formation was revealed also on the abdominal wall, with hyperpigmented and depigmented areas on its ulcerated surface, measuring approximately 10/10cm in diameter, with soft-elastic texture on palpation.  The lesion occurred in 2011, according to the patient’s history. No subjective complaints were reported in association. The performed ultrasonography revealed intestinal loops in the hernial sac, without incarceration. The diagnosis of ventral abdominal hernia without mechanical ileus was made. The patient was referred for planned surgical procedure, because of her refusal on this stage.The clinical manifestation of the tumor formation on the abdominal wall, required wide spectrum of differential diagnosis, including aneurysm of the abdominal aorta, abdominal tumor, subcutaneous tumor or metastasis or hernia. In the presented cases, the abdominal wall mass was a sporadic clinical finding in the framework of the total-body skin examination in patient with erysipelas. The lack of subjective symptoms, as well as the reported history for hysterectomy and previously abscessus were not enough indicative symptoms for the correct diagnosis. The diagnosis of non-complicated hernia was made via ultrasonography, while the clinical differentiation between hernia and other life-threatening conditions as aneurysms or tumor was not possible.

  6. Rare case of an abdominal mass presenting as acute abdomen: torsion of the vermiform appendix.

    Science.gov (United States)

    Kilincaslan, Huseyin; Gedik, Ahmet Hakan; Bilici, Mustafa; Cakir, Secil

    2013-04-01

    Torsion of the vermiform appendix is a rarely observed acute abdominal emergency. The clinical manifestations are similar to acute appendicitis. It should be included in the differential diagnosis if a patient presents with intermittent abdominal pain and an acute abdominal emergency. Here, we describe a 4-year-old male patient with a mass located in the right lower abdominal quadrant, whose clinical findings were consistent with an acute abdomen. The gangrenous appendix was found in the pelvic cavity and its stump was twisted clockwise. A 1.5-cm fecalith was detected in the appendix lumen and appendectomy was performed. © 2013 The Authors. Pediatrics International © 2013 Japan Pediatric Society.

  7. Spontaneous uterine rupture after abdominal myomectomy at the gestational age of 20 weeks in pregnancy: A case report

    Science.gov (United States)

    Pakniat, Hamideh; Soofizadeh, Nasrin; Khezri, Marzieh Beigom

    2016-01-01

    Background: Uterine rupture in pregnancy is rare and often could be life threatening and catastrophic. Myomectomy is one of very common surgeries in gynecology, performed as the vaginal, abdominal and laparoscopic surgeries. Pregnancies occured after abdominal and laparoscopic myomectomy are high risk for uterine rapture. Case: Patient was a 28 Years old female, pregnant woman at the 20 wks of gestational age with abdominal pain and a history of abdominal myomectomy 6 yrs ago. Uterus was ruptured and fetus in amniotic sac was found in abdominal cavity. Conclusion: Early diagnosis of uterine rupture after myomectomy can save patients from death. PMID:27525334

  8. Report of a Case of Primary Abdominal Pregnancy

    Directory of Open Access Journals (Sweden)

    Sh Beigi

    2006-01-01

    Full Text Available Ectopic pregnancy (EP is a potentially life-threatening condition in which the embryo implants outside the uterine endometrial cavity. Abdominal pregnancy is an atypical site wherein the product of conception lies totally outside the reproductive tract. Primary abdominal pregnancy is a very rare condition with a high mortality rate. Diagnosis is often late or misdiagnosed. The aim of introducing this case report is to present a new case of early primary abdominal pregnancy. Despite regular menstrual bleeding and contraception with IUD (intrauterine device, this pregnancy occurred in a 24-year old woman. Emergency laparotomy was performed because of abdominal pain, unstable condition and positive urine pregnancy test. It revealed more than 1500 ml of blood in the abdominal cavity. The uterus, both fallopian tubes and ovaries were completely intact. A 3X4 cm mass lateral to the left utersacral ligament was observed and resected. Since IUD strings could not be identified, endometrial currettage was performed and then the IUD was removed. Histological report of the mass and tissue of uterine cavity was placental villi and secretory endometrium, respectively, which according to Studdifords criteria is a new case of early primary abdominal pregnancy. To reduce maternal mortality and morbidity, early recognition of ectopic pregnancy is critical. According to review of the literature and the case report, a high index of suspicion is vital for the early diagnosis of ectopic pregnancy because the signs and symptoms of EP overlap with many surgical and gynecologic conditions. With early diagnosis of EP, we can suggest many therapeutic options and also retain fertility (if desired by patient, while minimizing disease and treatment-related morbidity.

  9. Abdominal emergencies in pediatrics.

    Science.gov (United States)

    Coca Robinot, D; Liébana de Rojas, C; Aguirre Pascual, E

    2016-05-01

    Abdominal symptoms are among the most common reasons for pediatric emergency department visits, and abdominal pain is the most frequently reported symptom. Thorough history taking and physical examination can often reach the correct diagnosis. Knowing the abdominal conditions that are most common in each age group can help radiologists narrow the differential diagnosis. When imaging tests are indicated, ultrasonography is usually the first-line technique, enabling the diagnosis or adding relevant information with the well-known advantages of this technique. Nowadays, plain-film X-ray studies are reserved for cases in which perforation, bowel obstruction, or foreign body ingestion is suspected. It is also important to remember that abdominal pain can also occur secondary to basal pneumonia. CT is reserved for specific indications and in individual cases, for example, in patients with high clinical suspicion of abdominal disease and inconclusive findings at ultrasonography. We review some of the most common conditions in pediatric emergencies, the different imaging tests indicated in each case, and the imaging signs in each condition.

  10. Uso da peritoneostomia na sepse abdominal Laparostomy in abdominal sepsis

    Directory of Open Access Journals (Sweden)

    Juvenal da Rocha Torres Neto

    2007-09-01

    Full Text Available Dentre as modalidades terapêuticas da sepse abdominal, a peritoneostomia tem papel decisivo permitindo explorações e lavagens da cavidade de forma facilitada. Observamos pacientes com diagnóstico clínico de sepse abdominal internados no Serviço de Coloproctologia do Hospital Universitário da Universidade Federal de Sergipe, e que foram submetidos a peritoneostomia de janeiro de 2004 a janeiro de 2006. Foram avaliados quanto ao diagnóstico primário e secundário, tipo de peritonite secundária, antibioticoterapia, esquema de lavagens, tempo de peritoneostomia, complicações e desfecho. Estudamos 12 pacientes, com idade de 15 a 57, média de 39,3 anos. Diagnóstico primário: abdome agudo inflamatório em 6(50%, abdome agudo obstrutivo em 2(16,7%, abdome agudo perfurativo em 2(16,7%, fístula enterocutânea em 1(8,3% e abscesso intra-cavitário em 1(8,3%. Diagnóstico secundário: perfuração de cólon em 4(33,3%, abscessos intra-cavitários em 3(25%, deiscências de anastomoses em 3(25%, 1(8,3% com tumor perfurado de sigmóide e 1(8,3% com necrose de cólon abaixado. Peritonite fecal em 10(83,3% e purulenta em 2(16,7%. A antibioticoterapia teve duração média de 19 dias. Lavagens de demanda em 6(50%, programadas em 4(33,3% e regime misto em 2(16,7%. O tempo médio de peritoneostomia foi de 10,9 dias (1-36. Como complicações: evisceração em 2(16,7% e fistulização em 1(8,3%. Quatro pacientes evoluíram com óbito.Among the therapeutics approach form of abdominal sepsis, the laparostomy has a decisive role allowing cavity explorations and lavages in an easier way. We study patients with abdominal sepsis diagnoses admitted to our surgical service of Coloproctology form Sergipe´s Federal University Hospital who underwent a Bogotá Bag laparostomy associated or not with polypropylene mesh from January 2004 to January 2006. These patients were assessed as: first and second diagnosis; secondary peritonitis type; antibiotic

  11. Dawn of Cavity Spintronics

    OpenAIRE

    Hu, Can-Ming

    2015-01-01

    Merging the progress of spintronics with the advancement in cavity quantum electrodynamics and cavity polaritons, a new field of Cavity Spintronics is forming, which connects some of the most exciting modern physics, such as quantum information and quantum optics, with one of the oldest science on the earth, the magnetism.

  12. Abdominal paracentesis and thoracocentesis.

    Science.gov (United States)

    Lee, Ser Yee; Pormento, James G; Koong, Heng Nung

    2009-04-01

    Abdominal paracentesis and thoracocentesis are common bedside procedures with diagnostic, therapeutic and palliative roles. We describe a useful and familiar a useful and familiar technique with the use of a multiple lumen catheter commonly used for central venous line insertion for drainage of ascites or moderate to large pleural effusions. The use of a multiple lumen catheter allows easier and more rapid aspiration of fluid with a smaller probability of the side holes being blocked as compared to the standard needle or single catheter methods. This is particularly useful in situations where the dedicated commercial kits for thoracocentesis and abdominal paracentesis are not readily available.

  13. Childhood abdominal cystic lymphangioma

    Energy Technology Data Exchange (ETDEWEB)

    Konen, Osnat; Rathaus, Valeria; Shapiro, Myra [Department of Diagnostic Imaging, Meir General Hospital, Sapir Medical Centre, Kfar Saba (Israel); Dlugy, Elena [Department of Paediatric Surgery, Schneider Medical Centre, Sackler School of Medicine, Tel-Aviv University (Israel); Freud, Enrique [Department of Paediatric Surgery, Sapir Medical Centre, Sackler School of Medicine, Tel-Aviv University (Israel); Kessler, Ada [Department of Diagnostic Imaging, Sourasky Medical Centre, Tel-Aviv (Israel); Horev, Gadi [Department of Diagnostic Imaging, Schneider Medical Centre, Tel-Aviv (Israel)

    2002-02-01

    Background: Abdominal lymphangioma is a rare benign congenital malformation of the mesenteric and/or retroperitoneal lymphatics. Clinical presentation is variable and may be misleading; therefore, complex imaging studies are necessary in the evaluation of this condition. US and CT have a major role in the correct preoperative diagnosis and provide important information regarding location, size, adjacent organ involvement, and expected complications. Objective: To evaluate the clinical and imaging findings of seven children with proven abdominal cystic lymphangioma. Materials and methods: Clinical and imaging files of seven children with pathologically proven abdominal lymphangioma, from three university hospitals, were retrospectively evaluated. Patient's ages ranged from 1 day to 6 years (mean, 2.2 years). Symptoms and signs included evidence of inflammation, abnormal prenatal US findings, chronic abdominal pain, haemorrhage following trauma, clinical signs of intestinal obstruction, and abdominal distension with lower extremities lymphoedema. Plain films of five patients, US of six patients and CT of five patients were reviewed. Sequential imaging examinations were available in two cases. Results: Abdominal plain films showed displacement of bowel loops by a soft tissue mass in five of six patients, two of them with dilatation of small bowel loops. US revealed an abdominal multiloculated septated cystic mass in five of six cases and a single pelvic cyst in one which changed in appearance over 2 months. Ascites was present in three cases. CT demonstrated a septated cystic mass of variable sizes in all available five cases. Sequential US and CT examinations in two patients showed progressive enlargement of the masses, increase of fluid echogenicity, and thickening of walls or septa in both cases, with multiplication of septa in one case. At surgery, mesenteric lymphangioma was found in five patients and retroperitoneal lymphangioma in the other two

  14. [Abdominal actinomycosis with IUD].

    Science.gov (United States)

    Kamprath, S; Merker, A; Kühne-Heid, R; Schneider, A

    1997-01-01

    We report a case of abdominal actinomycosis in a 54 year old woman using an intrauterine device for a period of 8 years. The most important finding was a tuboovarialabscess at the left pelvic side with involvement of the serosa of the jejunum, ileum, sigma, and omentum majus. Intraoperative exploration showed a solid retroperitoneal infiltration between the pelvic side wall and sigma. Another infiltration was found on the left side of the abdominal wall. The diagnosis was confirmed by histopathological examination and the patient was treated by a combination of Aminopenicillin and Metronidazol. After a period of three months we observed a complete regression of the clinical and the MRI findings.

  15. [Abdominal multi-organ transplantation in dogs].

    Science.gov (United States)

    Kumagae, T

    1988-07-01

    Abdominal multi-organ transplantation including the liver, gallbladder, spleen, pancreas, kidneys, adrenal glands and gastrointestinal tract was attempted in 8 dogs. Each experiment was discontinued when the recipient deteriorated. Immersion hypothermia was introduced in both the donor and recipient until the esophageal temperature reached 27-30 degrees C. Whole abdominal organs of the donor were removed in an en-bloc fashion at 20 degrees C of the graft temperature after additional cooling by ice slush scattering into the abdominal cavity. Transplantation was carried out orthotopically in the following sequence: (1) the proximal aorta, (2) suprahepatic vena cava, (3) distal aorta, (4) infrahepatic vena cava. The alimentary tract was reconstructed by gastro-gastrostomy and colo-colostomy. The ureters were implanted in the bladder. Cold ischemic time of the graft was about 40 minutes. Heparin was not used throughout the procedure. Five out of eight dogs were alive for more than 24 hours and two of them survived for 60 hours with good recovery. No immunosuppressant was given. Though the result in the present study was far from satisfaction, the experiment may provide a possibility of a new experimental model for transplantation, especially regarding pathophysiology and interrelationship of the transplanted complex organs.

  16. Athletic injuries of the lateral abdominal wall: review of anatomy and MR imaging appearance.

    Science.gov (United States)

    Stensby, J Derek; Baker, Jonathan C; Fox, Michael G

    2016-02-01

    The lateral abdominal wall is comprised of three muscles, each with a different function and orientation. The transversus abdominus, internal oblique, and external oblique muscles span the abdominal cavity between the iliocostalis lumborum and quadratus lumborum posteriorly and the rectus abdominis anteriorly. The lateral abdominal wall is bound superiorly by the lower ribs and costal cartilages and inferiorly by the iliac crest and inguinal ligament. The lateral abdominal wall may be acutely or chronically injured in a variety of athletic endeavors, with occasional acute injuries in the setting of high-energy trauma such as motor vehicle collisions. Injuries to the lateral abdominal wall may result in lumbar hernia formation, unique for its high incarceration rate, and also Spigelian hernias. This article will review the anatomy, the magnetic resonance (MR) imaging approach, and the features and complications of lateral abdominal wall injuries.

  17. Athletic injuries of the lateral abdominal wall: review of anatomy and MR imaging appearance

    Energy Technology Data Exchange (ETDEWEB)

    Stensby, J.D. [University of Virginia, Department of Radiology and Medical Imaging, 1218 Lee Street, Box 800170, Charlottesville, VA (United States); Mallinckrodt Institute of Radiology, 510 S. Kingshighway, Campus Box 8131, St. Louis, MO (United States); Baker, Jonathan C. [Mallinckrodt Institute of Radiology, 510 S. Kingshighway, Campus Box 8131, St. Louis, MO (United States); Fox, Michael G. [University of Virginia, Department of Radiology and Medical Imaging, 1218 Lee Street, Box 800170, Charlottesville, VA (United States)

    2016-02-15

    The lateral abdominal wall is comprised of three muscles, each with a different function and orientation. The transversus abdominus, internal oblique, and external oblique muscles span the abdominal cavity between the iliocostalis lumborum and quadratus lumborum posteriorly and the rectus abdominis anteriorly. The lateral abdominal wall is bound superiorly by the lower ribs and costal cartilages and inferiorly by the iliac crest and inguinal ligament. The lateral abdominal wall may be acutely or chronically injured in a variety of athletic endeavors, with occasional acute injuries in the setting of high-energy trauma such as motor vehicle collisions. Injuries to the lateral abdominal wall may result in lumbar hernia formation, unique for its high incarceration rate, and also Spigelian hernias. This article will review the anatomy, the magnetic resonance (MR) imaging approach, and the features and complications of lateral abdominal wall injuries. (orig.)

  18. Supersonic flows over cavities

    Institute of Scientific and Technical Information of China (English)

    Tianwen FANG; Meng DING; Jin ZHOU

    2008-01-01

    The characteristics of supersonic cold flows over cavities were investigated experimentally and numer-ically, and the effects of cavities of different sizes on super-sonic flow field were analyzed. The results indicate that the ratio of length to depth L/D within the range of 5-9 has little relevance to integral structures of cavity flow. The bevel angle of the rear wall does not alter the overall structure of the cavity flow within the range of 30°-60°, but it can exert obvious effect on the evolvement of shear layer and vortexes in cavities.

  19. Beam cavity interaction

    CERN Document Server

    Gamp, A

    2011-01-01

    We begin by giving a description of the rf generator-cavity-beam coupled system in terms of basic quantities. Taking beam loading and cavity detuning into account, expressions for the cavity impedance as seen by the generator and as seen by the beam are derived. Subsequently methods of beam-loading compensation by cavity detuning, rf feedback, and feed-forward are described. Examples of digital rf phase and amplitude control for the special case of superconducting cavities are also given. Finally, a dedicated phase loop for damping synchrotron oscillations is discussed.

  20. RESONANT CAVITY EXCITATION SYSTEM

    Science.gov (United States)

    Baker, W.R.; Kerns, Q.A.; Riedel, J.

    1959-01-13

    An apparatus is presented for exciting a cavity resonator with a minimum of difficulty and, more specifically describes a sub-exciter and an amplifier type pre-exciter for the high-frequency cxcitation of large cavities. Instead of applying full voltage to the main oscillator, a sub-excitation voltage is initially used to establish a base level of oscillation in the cavity. A portion of the cavity encrgy is coupled to the input of the pre-exciter where it is amplified and fed back into the cavity when the pre-exciter is energized. After the voltage in the cavity resonator has reached maximum value under excitation by the pre-exciter, full voltage is applied to the oscillator and the pre-exciter is tunned off. The cavity is then excited to the maximum high voltage value of radio frequency by the oscillator.

  1. Adult abdominal hernias.

    LENUS (Irish Health Repository)

    Murphy, Kevin P

    2014-06-01

    Educational Objectives and Key Points. 1. Given that abdominal hernias are a frequent imaging finding, radiologists not only are required to interpret the appearances of abdominal hernias but also should be comfortable with identifying associated complications and postrepair findings. 2. CT is the imaging modality of choice for the assessment of a known adult abdominal hernia in both elective and acute circumstances because of rapid acquisition, capability of multiplanar reconstruction, good spatial resolution, and anatomic depiction with excellent sensitivity for most complications. 3. Ultrasound is useful for adult groin assessment and is the imaging modality of choice for pediatric abdominal wall hernia assessment, whereas MRI is beneficial when there is reasonable concern that a patient\\'s symptoms could be attributable to a hernia or a musculoskeletal source. 4. Fluoroscopic herniography is a sensitive radiologic investigation for patients with groin pain in whom a hernia is suspected but in whom a hernia cannot be identified at physical examination. 5. The diagnosis of an internal hernia not only is a challenging clinical diagnosis but also can be difficult to diagnose with imaging: Closed-loop small-bowel obstruction and abnormally located bowel loops relative to normally located small bowel or colon should prompt assessment for an internal hernia.

  2. Abdominal and Pelvic CT

    Medline Plus

    Full Text Available ... as ulcerative colitis or Crohn's disease , pancreatitis or liver cirrhosis. cancers of the liver, kidneys, pancreas, ovaries and bladder as well as ... injuries to abdominal organs such as the spleen, liver, kidneys or other internal organs in cases of ...

  3. Abdominal and Pelvic CT

    Medline Plus

    Full Text Available ... to help diagnose the cause of abdominal or pelvic pain and diseases of the internal organs, small bowel and colon, such as: infections such as appendicitis , pyelonephritis or infected fluid collections, also known as abscesses. inflammatory bowel disease such as ulcerative colitis or Crohn's ...

  4. Penetrating abdominal trauma

    African Journals Online (AJOL)

    Enrique

    inal trauma (PAT) in our area, and to try to identify a pattern of organ-specific injury ... laparotomy due to persistent abdominal pain, after a period of observation of about .... in the ini- tial assessment who turned out to be free of visceral injuries.

  5. Cavity turnover and equilibrium cavity densities in a cottonwood bottomland

    Science.gov (United States)

    Sedgwick, James A.; Knopf, Fritz L.

    1992-01-01

    A fundamental factor regulating the numbers of secondary cavity nesting (SCN) birds is the number of extant cavities available for nesting. The number of available cavities may be thought of as being in an approximate equilibrium maintained by a very rough balance between recruitment and loss of cavities. Based on estimates of cavity recruitment and loss, we ascertained equilibrium cavity densities in a mature plains cottonwood (Populus sargentii) bottomland along the South Platte River in northeastern Colorado. Annual cavity recruitment, derived from density estimates of primary cavity nesting (PCN) birds and cavity excavation rates, was estimated to be 71-86 new cavities excavated/100 ha. Of 180 active cavities of 11 species of cavity-nesting birds found in 1985 and 1986, 83 were no longer usable by 1990, giving an average instantaneous rate of cavity loss of r = -0.230. From these values of cavity recruitment and cavity loss, equilibrium cavity density along the South Platte is 238-289 cavities/100 ha. This range of equilibrium cavity density is only slightly above the minimum of 205 cavities/100 ha required by SCN's and suggests that cavity availability may be limiting SCN densities along the South Platte River. We submit that snag management alone does not adequately address SCN habitat needs, and that cavity management, expressed in terms of cavity turnover and cavity densities, may be more useful.

  6. Analysis of closed abdominal injury in pregnant women

    Institute of Scientific and Technical Information of China (English)

    TU Chang-di; WANG Shao-juan; ZHOU Ri-guang; WEI Yang-yi; TAN Qiang

    2005-01-01

    Objective: To explore the characteristics of closed abdominal injury in pregnancy women and its treatment.Methods: The clinical data of 37 pregnancy patients with closed abdominal injury treated in our hospital from June 1993 to June 2003 were collected and analyzed.Results: All the 37 patients were treated with operation. Among them 2 early pregnancy patients with intestinal rupture and 1 patient with retroperitoneal hematoma were treated under laparoscope; in other 34 pregnancy patients laparotomy was performed. Of the 34 patients 8 used cesarean section because premature separation of placenta and enlarged womb interrupted the management of intra-abdominal organ injury. In the 37 patients 33 (89.1%) were cured, 4 (10.8%) die, postoperative complication rate was 16.2% (6/37). Two patients (5.4%) suffered from abdominal cavity infection, 3 (8.1%) from pulmonary infection, and 1 (2.7%) had multi-organ failure.Conclusions: For pregnancy patients with closed abdominal injury, besides obsteric diseases intra-abdominal injury should be given much attention. Accurate diagnosis and timely treatment can gain the time to save the life of both mother and fetus.

  7. Children's (Pediatric) Abdominal Ultrasound Imaging

    Medline Plus

    Full Text Available ... are the limitations of Abdominal Ultrasound Imaging? What is Abdominal Ultrasound Imaging? Ultrasound is safe and painless, ... through the blood vessels. top of page How is the procedure performed? For most ultrasound exams, you ...

  8. Children's (Pediatric) Abdominal Ultrasound Imaging

    Medline Plus

    Full Text Available ... particularly valuable for evaluating abdominal, pelvic or scrotal pain in children. Preparation will depend on the type ... help a physician determine the source of abdominal pain, such as gallstones, kidney stones, abscesses or an ...

  9. Children's (Pediatric) Abdominal Ultrasound Imaging

    Medline Plus

    Full Text Available ... or kidneys. top of page What are some common uses of the procedure? Abdominal ultrasound imaging is ... Except for traumatic injury, appendicitis is the most common reason for emergency abdominal surgery. Ultrasound imaging can ...

  10. Screening for Abdominal Aortic Aneurysm

    Science.gov (United States)

    Understanding Task Force Recommendations Screening for Abdominal Aortic Aneurysm The U.S. Preventive Services Task Force (Task Force) has issued a final recommendation statement on Screening for Abdominal Aortic Aneurysm. This final ...

  11. Abdominal aortic aneurysm repair - open

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/007392.htm Abdominal aortic aneurysm repair - open To use the sharing features on this page, please enable JavaScript. Open abdominal aortic aneurysm repair is surgery to fix a widened part ...

  12. Ultrasonic research of abdominal organs in conditions of long-term antiorthostatic hypokinesia.

    Science.gov (United States)

    Afonin, B V; Nichiporuk, I A; Nesterov, M A; Belousova, I V

    1998-07-01

    Change in functional activity of digestive system in space flight usually is associated with phenomenon of hypokinesia which takes place in microgravity. However, it is marked that the reorganization of a gastrointestinal tract in space flight occurs on a background of the phenomenon of venous plethora in abdominal cavity, which can also result in changes of functional activity in organs of digestive system. Insignificant amount of studies of venous plethora in abdominal cavity carried out in conditions of space flight does not allow to create a complete picture of this phenomenon. Hemodynamical changes comparable to microgravity are well-simulated in conditions of a long-term antiorthostatic hypokinesia (AH)--bed-rest in a head-down tilt. The present research was performed with the aim to study venous plethora in abdominal cavity in conditions of long-term AH.

  13. Biliary peritonitis due to "fallen" hydatid cyst after abdominal trauma.

    Science.gov (United States)

    Kara, Melih; Tihan, Deniz; Fersahoglu, Tuba; Cavda, Faruk; Titiz, Izzet

    2008-01-01

    Hepatic hydatid cysts may cause serious complications. Intraperitoneal rupture of hepatic hydatid cyst is rarely seen and the prognosis can be fatal. By experience, we know that it might be difficult to diagnose an unruptured cyst expulsed into the peritoneal cavity. In this report, we present the case of a 54-year-old man with an intraperitoneal cystic mass of 10 cm of diameter which had extruded out from the liver due to a blunt abdominal trauma.

  14. [Mediastino-abdominal lipomatosis. Description of a case].

    Science.gov (United States)

    Potestà, D; Mecenate, F

    1991-03-01

    The authors describe a case of mediastino-abdominal lipomatosis. The patient, who is 70 years old, was kept under observation, because of her recent state of illness. This state of illness was initially interpreted as angor attacks and a left ventricular failure. Only after the results of a CT examination showing a characteristic disproportion between the endothoracic-endoabdominal adipose tissue and the subcutaneous tissue, a correct interpretation was given. As a result the patient's state of illness was attributed to a compression of the adipose tissue growth in the abdominal and thoracic cavity. The etiology of mediastino-abdominal lipomatosis is still unknown. Therapy consists in removing the lipomas surgically when they cause a compression of the trachea and the upper vena cava.

  15. Acquired Abdominal Intercostal Hernia: A Case Report and Literature Review

    Science.gov (United States)

    Tripodi, Giuseppe

    2014-01-01

    Acquired abdominal intercostal hernia (AAIH) is a rare disease phenomenon where intra-abdominal contents reach the intercostal space directly from the peritoneal cavity through an acquired defect in the abdominal wall musculature and fascia. We discuss a case of a 51-year-old obese female who arrived to the emergency room with a painful swelling between her left 10th rib and 11th rib. She gave a history of a stab wound to the area 15 years earlier. A CT scan revealed a fat containing intercostal hernia with no diaphragmatic defect. An open operative approach with a hernia patch was used to repair this hernia. These hernias are difficult to diagnose, so a high clinical suspicion and thorough history and physical exam are important. This review discusses pathogenesis, clinical presentation, complications, and appropriate treatment strategies of AAIH. PMID:25197605

  16. [Mutual role of factors of endotoxicosis and intra-abdominal hypertension syndrome in pathogenesis of abdominal sepsis].

    Science.gov (United States)

    Veliev, N A; Gasanova, D N; Ismailov, V F

    2013-10-01

    The mutual role of the main factors of endotoxicosis and intraabdominal hypertension syndrome (IHS) were studied in pathogenesis of abdominal sepsis, basing on analysis of the treatment results in 156 patients, suffering this disease. The contents of neutrophils, macrophages, interleukins (IL-6, IL-10) were studied in peritoneal exudate as the indices of the source of inflammation in abdominal cavity. There was established the mutual strengthening of the endotoxicosis and IHS factors, what causes the clinical signs of the organ dysfunction, determines the course severity and outcome of pathological process in the organism. Such approach to pathogenesis of abdominal sepsis permits in time and adequately to elaborate the certain program of treatment in the patients.

  17. LEP copper accelerating cavities

    CERN Multimedia

    Laurent Guiraud

    1999-01-01

    These copper cavities were used to generate the radio frequency electric field that was used to accelerate electrons and positrons around the 27-km Large Electron-Positron (LEP) collider at CERN, which ran from 1989 to 2000. The copper cavities were gradually replaced from 1996 with new superconducting cavities allowing the collision energy to rise from 90 GeV to 200 GeV by mid-1999.

  18. Physicians' Abdominal Auscultation

    DEFF Research Database (Denmark)

    John, Gade; Peter, Kruse; Andersen, Ole Trier

    1998-01-01

    Background: Abdominal auscultation has an important position in the physical examination of the abdomen. Little is known about rater agreement. The aim of this study was to describe rater agreement and thus, indirectly, the value of the examination. Methods: In a semi-virtual setup 12 recordings...... of the intestinal sounds from 8 patients with acute abdominal pain and 4 healthy volunteers were presented to 100 physicians. The physicians were asked to characterize the intestinal sounds as normal or pathologic. Fisher's exact test was used for comparison between groups of physicians. Results: Overall, 72......% of the answers with regard to healthy volunteers concluded that the sounds were normal (equalling agreement), whereas 64% of answers with regard to intestinal obstruction concluded that the sounds were pathologic (but agreement was higher due to agreement on wrong diagnosis in one case). Bowel sounds from...

  19. Endometrioma de parede abdominal

    Directory of Open Access Journals (Sweden)

    Italo Accetta

    Full Text Available OBJETIVO: Relatar a experiência dos autores com as manifestações clínicas e o tratamento cirúrgico em pacientes com endometrioma de parede abdominal. MÉTODOS: Análise retrospectiva das pacientes operadas por endometrioma de parede abdominal, dando ênfase aos dados relativos à idade, sintomas, cesariana prévia, relação dos sintomas com o ciclo menstrual, exames físicos e complementares, tratamento cirúrgico, evolução pós-operatória e resultado histopatológico dos espécimes. RESULTADOS: Foram operadas 14 pacientes no período estudado, com idade entre 28 e 40 anos. A presença de massa e dor local que piorava durante a menstruação foram as queixas principais. Ultrassonografia e tomografia computadorizada foram exames importantes em localizar precisamente a doença. O tratamento cirúrgico foi exérese ampla da tumoração e dos tecidos comprometidos. As pacientes evoluíram satisfatoriamente e o histopatológico confirmou a suspeita de endometrioma de parede abdominal em todos os casos. CONCLUSÃO: Foi nítida a relação entre cesariana prévia e endometrioma de parede abdominal e estudos ultrassonográficos e tomográficos auxiliaram a planejar a abordagem cirúrgica permitindo a exérese da tumoração e de todos os tecidos adjacentes comprometidos.

  20. Ruptured abdominal aortic aneurysm.

    Science.gov (United States)

    Sachs, T; Schermerhorn, M

    2010-06-01

    Ruptured abdominal aortic aneurysm (AAA) continues to be one of the most lethal vascular pathologies we encounter. Its management demands prompt and efficient evaluation and repair. Open repair has traditionally been the mainstay of treatment. However, the introduction of endovascular techniques has altered the treatment algorithm for ruptured AAA in most major medical centers. We present recent literature and techniques for ruptured AAA and its surgical management.

  1. Abdominal aspergillosis: CT findings

    Energy Technology Data Exchange (ETDEWEB)

    Yeom, Suk Keu, E-mail: pagoda20@hanmail.net [Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 388-1, Poongnap2-dong, Songpa-gu, Seoul, 138-736 (Korea, Republic of); Kim, Hye Jin, E-mail: kimhyejin@amc.seoul.kr [Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 388-1, Poongnap2-dong, Songpa-gu, Seoul, 138-736 (Korea, Republic of); Byun, Jae Ho, E-mail: jhbyun@amc.seoul.kr [Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 388-1, Poongnap2-dong, Songpa-gu, Seoul, 138-736 (Korea, Republic of); Kim, Ah Young, E-mail: aykim@amc.seoul.kr [Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 388-1, Poongnap2-dong, Songpa-gu, Seoul, 138-736 (Korea, Republic of); Lee, Moon-Gyu, E-mail: mglee@amc.seoul.kr [Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 388-1, Poongnap2-dong, Songpa-gu, Seoul, 138-736 (Korea, Republic of); Ha, Hyun Kwon, E-mail: hkha@amc.seoul.kr [Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 388-1, Poongnap2-dong, Songpa-gu, Seoul, 138-736 (Korea, Republic of)

    2011-03-15

    Objective: In order to retrospectively evaluate the CT findings of abdominal aspergillosis in immunocompromised patients. Materials and methods: CT scans were reviewed with regard to the sites, number, morphologic appearance, attenuation, and the contrast enhancement patterns of the lesions in six patients (5 women, 1 man; mean age, 43.4 years; range, 23-59 years) with pathologically proved abdominal aspergillosis by two gastrointestinal radiologists in consensus. Medical records were also reviewed to determine each patient's clinical status and outcome. Results: All patients were immunocompromised state: 4 patients received immunosuppressive therapy for solid organ transplantation and 2 patients received chemotherapy for acute myeloid leukemia. Aspergillosis involved blood vessels (n = 3), liver (n = 2), spleen (n = 2), gastrointestinal tract (n = 2), native kidney (n = 1), transplanted kidney (n = 1), peritoneum (n = 1), and retroperitoneum (n = 1). CT demonstrated solid organ or bowel infarction or perforation secondary to vascular thrombosis or pseudoaneurysm, multiple low-attenuating lesions of solid organs presenting as abscesses, concentric bowel wall thickening mimicking typhlitis, or diffuse or nodular infiltration of the peritoneum and retroperitoneum. Conclusion: Familiarity with findings commonly presenting as angioinvasive features or abscesses on CT, may facilitate the diagnosis of rare and fatal abdominal aspergillosis.

  2. Abdominal lithopedion formation with 30 years of evolution: report of a case.

    Science.gov (United States)

    Yang, Yali; Zhou, Hong; Guo, Jin; Su, Wei; Shen, Hong

    2016-01-01

    The incidence of abdominal pregnancy is very rare, long-retained abdominal pregnancy undergoing fetal death and evolving to a lithopaedion is even more scarce. The authors report the case of a 60-year-old woman who discovered an abdominal mass 31 years ago that was recently identified intraoperatively as lithopaedion. Although imaging had revealed a low-level echogenic mass in the cavity, nobody had considered the possibility of a lithopaedion before the operation. The authors strongly suggest identifying the small skeletal frame through imaging that will be a very important preoperative sign that will lead to a diagnosis, otherwise neglected in the past years.

  3. Cavity spin optodynamics

    CERN Document Server

    Brahms, N

    2010-01-01

    The dynamics of a large quantum spin coupled parametrically to an optical resonator is treated in analogy with the motion of a cantilever in cavity optomechanics. New spin optodynamic phenonmena are predicted, such as cavity-spin bistability, optodynamic spin-precession frequency shifts, coherent amplification and damping of spin, and the spin optodynamic squeezing of light.

  4. SPS accelerating cavity

    CERN Multimedia

    1980-01-01

    One of the SPS acceleration cavities (200 MHz, travelling wave structure). On the ceiling one sees the coaxial transmission line which feeds the power from the amplifier, located in a surface building above, to the upstream end of the cavity. See 7603195 for more details, 7411032 for the travelling wave structure, and also 8104138, 8302397.

  5. Superconducting cavities for LEP

    CERN Multimedia

    1983-01-01

    Above: a 350 MHz superconducting accelerating cavity in niobium of the type envisaged for accelerating electrons and positrons in later phases of LEP. Below: a small 1 GHz cavity used for investigating the surface problems of superconducting niobium. Albert Insomby stays on the right. See Annual Report 1983 p. 51.

  6. SPS accelerating cavity

    CERN Multimedia

    CERN PhotoLab

    1981-01-01

    One of the SPS accelerating cavities (200 MHz, travelling wave structure). The power that is fed into the upstream end of the cavity is extracted at the downstream end and sent into a dump load. See 7603195 for more details, 7411032 for the travelling wave structure, and also 8011289, 8302397.

  7. Jejunal perforation after abdominal liposuction, bilateral breast augmentation and facial fat grafting.

    Science.gov (United States)

    Coronado-Malagón, Martin; Tauffer-Carrion, Luis Tomas

    2012-01-01

    A 54-year-old woman presented to the emergency department 24 h after undergoing abdominal liposuction, bilateral breast augmentation and facial fat grafting at a private plastic surgery clinic. She presented with the classic evolution of a bowel perforation secondary to abdominal liposuction. A computed tomography (CT) scan found free air in her abdominal cavity. Based on the CT scan and the persistent pain experienced by the patient, an abdominal laparatomy was urgently performed. A jejunum perforation was found and was treated with a resection of the affected segment followed by intestinal anastomosis. The patient had a successful recovery and was discharged seven days later. The present article also reviews the classical presentation of a bowel perforation following abdominal liposuction.

  8. Emergency diagnostic laparoscopy in abdominal trauma: a study of 41 patients

    Directory of Open Access Journals (Sweden)

    Marcos Félix Osorio Pagola

    2010-07-01

    Full Text Available Background: laparoscopy is a test used in the patients with abdominal trauma with suspicion of intra-abdominal organic damage and an imminent surgical behavior. Objectives: to expose the results of the urgency laparoscopic diagnosis in the traumatic acute abdomen. Methods: an descriptive and retrospective study in patient with diagnosis of abdominal trauma to which were carried out urgency laparoscopy at the Hospital Dr. Gustavo Aldereguía Lima", from january 2001 to december 2008, when not being possible to define injury of intra-abdominal viscera performing other tests. Inclusion and exclusion criterion were applied. Results: we study 41 patients with average of 39, 2 ± 7, 7 years. Most of the studied patients were in the age range from 31 to 40 years with 21 patients (51, 2 % the open abdominal trauma with 26 patients prevailed (63, 4 %. The masculine sex prevailed with 38 patients (92,7 % and as much the open trauma as the closed one were more frequent in this sex with 25 patients (96,2 % and 13 patients (86,7 % respectively. They didn't show visceral damage during the laparoscopy 93, 3 % of the patients with closed abdominal trauma by what the surgical treatment was avoided, the same as in the patients with open abdominal trauma which had a non penetrating damage in abdominal cavity (80, 8 %. Conclusion: laparoscopic diagnosis is a useful test in patients with abdominal trauma and it avoids a considerable number of unnecessary conventional surgical treatment.

  9. Abdominal aortic aneurysm surgery

    DEFF Research Database (Denmark)

    Gefke, K; Schroeder, T V; Thisted, B

    1994-01-01

    The goal of this study was to identify patients who need longer care in the ICU (more than 48 hours) following abdominal aortic aneurysm (AAA) surgery and to evaluate the influence of perioperative complications on short- and long-term survival and quality of life. AAA surgery was performed in 553......, 78% stated that their quality of life had improved or was unchanged after surgery and had resumed working. These data justify a therapeutically aggressive approach, including ICU therapy following AAA surgery, despite failure of one or more organ systems....

  10. Abdominal perfusion computed tomography.

    Science.gov (United States)

    Ogul, Hayri; Bayraktutan, Ummugulsum; Kizrak, Yesim; Pirimoglu, Berhan; Yuceler, Zeynep; Sagsoz, M Erdem; Yilmaz, Omer; Aydinli, Bulent; Ozturk, Gurkan; Kantarci, Mecit

    2013-02-01

    The purpose of this article is to provide an up to date review on the spectrum of applications of perfusion computed tomography (CT) in the abdomen. New imaging techniques have been developed with the objective of obtaining a structural and functional analysis of different organs. Recently, perfusion CT has aroused the interest of many researchers who are studying the applicability of imaging modalities in the evaluation of abdominal organs and diseases. Per-fusion CT enables fast, non-invasive imaging of the tumor vascular physiology. Moreover, it can act as an in vivo biomarker of tumor-related angiogenesis.

  11. Lower Abdominal Pain.

    Science.gov (United States)

    Carlberg, David J; Lee, Stephen D; Dubin, Jeffrey S

    2016-05-01

    Although most frequently presenting with lower abdominal pain, appendicitis, colitis, and diverticulitis can cause pain throughout the abdomen and can cause peritoneal and retroperitoneal symptoms. Evaluation and management of lower intestinal disease requires a nuanced approach by the emergency physician, sometimes requiring computed tomography, ultrasonography, MRI, layered imaging, shared decision making, serial examination, and/or close follow-up. Once a presumed or confirmed diagnosis is made, appropriate treatment is initiated, and may include surgery, antibiotics, and/or steroids. Appendicitis patients should be admitted. Diverticulitis and inflammatory bowel disease can frequently be managed on an outpatient basis, but may require admission and surgical consultation.

  12. Dolor abdominal recurrente .

    Directory of Open Access Journals (Sweden)

    Rodrigo De Vivero

    2009-11-01

    Full Text Available El dolor abdominal recurrente (DAR es un problema frecuente en la consulta médica y en la subespecialidad médica y quirúrgica. El DAR es frecuentemente funcional, es decir, sin una causa orgánica aparente. El diagnóstico diferencial debe incluir pérdida de peso, sangrado gastrointestinal, fiebre persistente, diarrea crónica y vómito importante. En este artículo se revisa el diagnóstico y tratamiento, pruebas diagnósticas y manejo farmacológico y ambiental.

  13. [Differential diagnosis of abdominal pain].

    Science.gov (United States)

    Frei, Pascal

    2015-09-02

    Despite the frequency of functional abdominal pain, potentially dangerous causes of abdominal pain need to be excluded. Medical history and clinical examination must focus on red flags and signs for imflammatory or malignant diseases. See the patient twice in the case of severe and acute abdominal pain if lab parameters or radiological examinations are normal. Avoid repeated and useless X-ray exposure whenever possible. In the case of subacute or chronic abdominal pain, lab tests such as fecal calprotectin, helicobacter stool antigen and serological tests for celiac disease are very useful. Elderly patients may show atypical or missing clinical signs. Take care of red herrings and be skeptical whether your initial diagnosis is really correct. Abdominal pain can frequently be an abdominal wall pain.

  14. Abdominal wall blocks in adults

    DEFF Research Database (Denmark)

    Børglum, Jens; Gögenür, Ismail; Bendtsen, Thomas F

    2016-01-01

    Purpose of review Abdominal wall blocks in adults have evolved much during the last decade; that is, particularly with the introduction of ultrasound-guided (USG) blocks. This review highlights recent advances of block techniques within this field and proposes directions for future research.......  Recent findings Ultrasound guidance is now considered the golden standard for abdominal wall blocks in adults, even though some landmark-based blocks are still being investigated. The efficiency of USG transversus abdominis plane blocks in relation to many surgical procedures involving the abdominal wall...... been introduced with success. Future research should also investigate the effect of specific abdominal wall blocks on neuroendocrine and inflammatory stress response after surgery.  Summary USG abdominal wall blocks in adults are commonplace techniques today. Most abdominal wall blocks are assigned...

  15. Abdominal cystic lymphangioma mimicking appendicitis.

    Science.gov (United States)

    Wake, Sarah; Abhyankar, Aruna; Hutton, Kim

    2013-06-01

    A cystic lymphangioma arising within the abdomen is a rare entity in children. It may present with an abdominal mass and symptoms of abdominal pain, vomiting, and anorexia. These nonspecific clinical symptoms are often attributed to more common acute pediatric conditions. In this report, we describe two pediatric cases of intra-abdominal cystic lymphangioma that were initially diagnosed and treated as appendicitis. True diagnosis was only achieved on surgical excision and pathological investigation of cystic material.

  16. Abdominal Cystic Lymphangioma Mimicking Appendicitis

    OpenAIRE

    Wake, Sarah; Abhyankar, Aruna; Hutton, Kim

    2013-01-01

    A cystic lymphangioma arising within the abdomen is a rare entity in children. It may present with an abdominal mass and symptoms of abdominal pain, vomiting, and anorexia. These nonspecific clinical symptoms are often attributed to more common acute pediatric conditions. In this report, we describe two pediatric cases of intra-abdominal cystic lymphangioma that were initially diagnosed and treated as appendicitis. True diagnosis was only achieved on surgical excision and pathological investi...

  17. Abdominal pregnancy- a case report.

    Science.gov (United States)

    Okafor, Ii; Ude, Ac; Aderibigbe, Aso; Amu, Oc; Udeh, Pe; Obianyo, Nen; Ani, Coc

    2011-01-01

    A case of abdominal pregnancy in a 39 year old female gravida 4, para 0(+3) is presented. Ultrasonography revealed a viable abdominal pregnancy at 15 weeks gestational age. She was initially managed conservatively. Surgical intervention became necessary at 20 weeks gestational age following Ultrasound detection of foetal demise. The maternal outcome was favourable. This case is presented to highlight the dilemma associated with diagnosis and management of abdominal pregnancy with a review of literature.

  18. Children's (Pediatric) Abdominal Ultrasound Imaging

    Medline Plus

    Full Text Available ... through blood vessels. Ultrasound imaging is a noninvasive medical test that helps physicians diagnose and treat medical conditions. Children's (pediatric) abdominal ultrasound imaging produces pictures ...

  19. SPS RF Accelerating Cavity

    CERN Multimedia

    1979-01-01

    This picture shows one of the 2 new cavities installed in 1978-1979. The main RF-system of the SPS comprises four cavities: two of 20 m length and two of 16.5 m length. They are all installed in one long straight section (LSS 3). These cavities are of the travelling-wave type operating at a centre frequency of 200.2 MHz. They are wideband, filling time about 700 ns and untuned. The power amplifiers, using tetrodes are installed in a surface building 200 m from the cavities. Initially only two cavities were installed, a third cavity was installed in 1978 and a forth one in 1979. The number of power amplifiers was also increased: to the first 2 MW plant a second 2 MW plant was added and by end 1979 there were 8 500 kW units combined in pairs to feed each of the 4 cavities with up to about 1 MW RF power, resulting in a total accelerating voltage of about 8 MV. See also 7412016X, 7412017X, 7411048X

  20. SPS RF Cavity

    CERN Multimedia

    1975-01-01

    The picture shows one of the two initially installed cavities. The main RF-system of the SPS comprises four cavities: two of 20 m length and two of 16.5 m length. They are all installed in one long straight section (LSS 3). These cavities are of the travelling-wave type operating at a centre frequency of 200.2 MHz. They are wideband, filling time about 700 ns and untuned. The power amplifiers, using tetrodes are installed in a surface building 200 m from the cavities. Initially only two cavities were installed, a third cavity was installed in 1978 and a forth one in 1979. The number of power amplifiers was also gradually increased: by end 1980 there were 8 500 kW units combined in pairs to feed each of the 4 cavities with up to about 1 MW RF power, resulting in a total accelerating voltage of about 8 MV. See also 7412017X, 7411048X, 7505074.

  1. Cavity-enhanced spectroscopies

    CERN Document Server

    van Zee, Roger

    2003-01-01

    ""Cavity-Enhanced Spectroscopy"" discusses the use of optical resonators and lasers to make sensitive spectroscopic measurements. This volume is written by the researcchers who pioneered these methods. The book reviews both the theory and practice behind these spectroscopic tools and discusses the scientific discoveries uncovered by these techniques. It begins with a chapter on the use of optical resonators for frequency stabilization of lasers, which is followed by in-depth chapters discussing cavity ring-down spectroscopy, frequency-modulated, cavity-enhanced spectroscopy, intracavity spectr

  2. Tuned optical cavity magnetometer

    Science.gov (United States)

    Okandan, Murat; Schwindt, Peter

    2010-11-02

    An atomic magnetometer is disclosed which utilizes an optical cavity formed from a grating and a mirror, with a vapor cell containing an alkali metal vapor located inside the optical cavity. Lasers are used to magnetically polarize the alkali metal vapor and to probe the vapor and generate a diffracted laser beam which can be used to sense a magnetic field. Electrostatic actuators can be used in the magnetometer for positioning of the mirror, or for modulation thereof. Another optical cavity can also be formed from the mirror and a second grating for sensing, adjusting, or stabilizing the position of the mirror.

  3. SPS RF cavity

    CERN Multimedia

    1974-01-01

    The main RF-system of the SPS comprises four cavities: two of 20 m length and two of 16.5 m length. They are all installed in one long straight section (LSS 3). These cavities are of the travelling-wave type operating at a centre frequency of 200.2 MHz. They are wideband, filling time about 700 ns and untuned. A power of up to 790 kW can be supplied to each giving a total accelerating voltage of about 8 MV. The power amplifiers, using tetrodes are installed in a surface building 200 m from the cavities.

  4. Postpartum intra-abdominal haemorrhage: Case report

    Directory of Open Access Journals (Sweden)

    Tubić-Pavlović Aleksandra

    2010-01-01

    Full Text Available Introduction. The most frequent cause of gynaecological haemoperitoneum is ruptured ectopic pregnancy. Haemoperitoneum after a normal vaginal delivery is rare and it is associated with high maternal mortality. Case report. A 22-year-old primipara had a normal vaginal delivery. She experinced acute abdominal pain and hypovolemic shock ten hours after the delivery and was referred to our hospital twenty one hours after the delivery. An urgent ultrasound profile was done, which revealed free fluid in pelvis and in the whole abdomen. An immediate laparotomy was done and 2 litres of blood were found within the peritoneal cavity. The uterine wall was intact. We found a haematoma on the anterior wall of rectum and livid colours of broad ligament. The peritoneal cavity was cleaned and revised. Any injury of the spleen or liver was excluded. Discussion and conclusion. Haematoperitoneum after a normal vaginal delivery is rare but life threatening to mothers. It is important to recognize this condition to avoid delay in diagnosis and treatment because of high maternal mortality. Our patient was bleeding from superficial rectal vessels. Only a few cases with undefined aetiologies have been reported in literature.

  5. Nontraumatic abdominal emergencies: acute abdominal pain: diagnostic strategies

    Energy Technology Data Exchange (ETDEWEB)

    Marincek, B. [Institute of Diagnostic Radiology, University Hospital Zurich, Raemistrasse 100, 8091 Zurich (Switzerland)

    2002-09-01

    Common causes of acute abdominal pain include appendicitis, cholecystitis, bowel obstruction, urinary colic, perforated peptic ulcer, pancreatitis, diverticulitis, and nonspecific, nonsurgical abdominal pain. The topographic classification of acute abdominal pain (pain in one of the four abdominal quadrants, diffuse abdominal pain, flank or epigastric pain) facilitates the choice of the imaging technique. The initial radiological evaluation often consists of plain abdominal radiography, despite significant diagnostic limitations. The traditional indications for plain films - bowel obstruction, pneumoperitoneum, and the search of ureteral calculi - are questioned by helical computed tomography (CT). Although ultrasonography (US) is in many centers the modality of choice for imaging the gallbladder and the pelvis in children and women of reproductive age, CT is considered to be one of the most valued tools for triaging patients with acute abdominal pain. CT is particularly beneficial in patients with marked obesity, unclear US findings, bowel obstruction, and multiple lesions. The introduction of multidetector row CT (MDCT) has further enhanced the utility of CT in imaging patients with acute abdominal pain. (orig.)

  6. SPS accelerating cavity

    CERN Multimedia

    1976-01-01

    The SPS started up with 2 accelerating cavities (each consisting of 5 tank sections) in LSS3. They have a 200 MHz travelling wave structure (see 7411032 and 7802190) and 750 kW of power is fed to each of the cavities from a 1 MW tetrode power amplifier, located in a surface building above, via a coaxial transmission line. Clemens Zettler, builder of the SPS RF system, is standing at the side of one of the cavities. In 1978 and 1979 another 2 cavities were added and entered service in 1980. These were part of the intensity improvement programme and served well for the new role of the SPS as proton-antiproton collider. See also 7411032, 8011289, 8104138, 8302397.

  7. accelerating cavity from LEP

    CERN Multimedia

    This is an accelerating cavity from LEP, with a layer of niobium on the inside. Operating at 4.2 degrees above absolute zero, the niobium is superconducting and carries an accelerating field of 6 million volts per metre with negligible losses. Each cavity has a surface of 6 m2. The niobium layer is only 1.2 microns thick, ten times thinner than a hair. Such a large area had never been coated to such a high accuracy. A speck of dust could ruin the performance of the whole cavity so the work had to be done in an extremely clean environment. These challenging requirements pushed European industry to new achievements. 256 of these cavities are now used in LEP to double the energy of the particle beams.

  8. Dental Sealants Prevent Cavities

    Science.gov (United States)

    ... MMWR RSS VitalSigns RSS Error processing SSI file Dental Sealants Prevent Cavities Effective protection for children Language: ... more use of sealants and reimbursement of services. Dental care providers can Apply sealants to children at ...

  9. Hybrid vertical cavity laser

    DEFF Research Database (Denmark)

    Chung, Il-Sug; Mørk, Jesper

    2010-01-01

    A new hybrid vertical cavity laser structure for silicon photonics is suggested and numerically investigated. It incorporates a silicon subwavelength grating as a mirror and a lateral output coupler to a silicon ridge waveguide.......A new hybrid vertical cavity laser structure for silicon photonics is suggested and numerically investigated. It incorporates a silicon subwavelength grating as a mirror and a lateral output coupler to a silicon ridge waveguide....

  10. Abdominal Complications after Severe Burns

    Science.gov (United States)

    2009-05-01

    abdominal compartment syndrome, schemic bowel, biliary disease , peptic ulcer disease and astritis requiring laparotomy, small bowel obstruction, rimary fungal...complications in- luded trauma exploratory laparotomy, abdominal com- artment syndrome, ischemic bowel, biliary disease , peptic lcer disease and gastritis, large...because it was almost uniformly ssociated with serious lethal burns. This was in the period efore effective gastric acid control, explaining the high

  11. Surface explosion cavities

    CERN Document Server

    Benusiglio, Adrien; Clanet, Christophe

    2012-01-01

    We present a fluid dynamics video on cavities created by explosions of firecrackers at the water free surface. We use three types of firecrackers containing 1, 1.3 and 5 g of flash powder. The firecrackers are held with their center at the surface of water in a cubic meter pool. The movies are recorded from the side with a high-speed video camera. Without confinement the explosion produces an hemispherical cavity. Right after the explosion this cavity grows isotropically, the bottom then stops while the sides continue to expand. In the next phase the bottom of the cavity accelerates backwards to the surface. During this phase the convergence of the flow creates a central jet that rises above the free surface. In the last part of the video the explosion is confined in a vertical open tube made of glass and of centimetric diameter. The explosion creates a cylindrical cavity that develops towards the free end of the tube. Depending on the charge, the cavity can either stop inside the tube or at its exit, but nev...

  12. The Superconducting TESLA Cavities

    CERN Document Server

    Aune, B.; Bloess, D.; Bonin, B.; Bosotti, A.; Champion, M.; Crawford, C.; Deppe, G.; Dwersteg, B.; Edwards, D.A.; Edwards, H.T.; Ferrario, M.; Fouaidy, M.; Gall, P-D.; Gamp, A.; Gössel, A.; Graber, J.; Hubert, D.; Hüning, M.; Juillard, M.; Junquera, T.; Kaiser, H.; Kreps, G.; Kuchnir, M.; Lange, R.; Leenen, M.; Liepe, M.; Lilje, L.; Matheisen, A.; Möller, W-D.; Mosnier, A.; Padamsee, H.; Pagani, C.; Pekeler, M.; Peters, H-B.; Peters, O.; Proch, D.; Rehlich, K.; Reschke, D.; Safa, H.; Schilcher, T.; Schmüser, P.; Sekutowicz, J.; Simrock, S.; Singer, W.; Tigner, M.; Trines, D.; Twarowski, K.; Weichert, G.; Weisend, J.; Wojtkiewicz, J.; Wolff, S.; Zapfe, K.

    2000-01-01

    The conceptional design of the proposed linear electron-positron colliderTESLA is based on 9-cell 1.3 GHz superconducting niobium cavities with anaccelerating gradient of Eacc >= 25 MV/m at a quality factor Q0 > 5E+9. Thedesign goal for the cavities of the TESLA Test Facility (TTF) linac was set tothe more moderate value of Eacc >= 15 MV/m. In a first series of 27industrially produced TTF cavities the average gradient at Q0 = 5E+9 wasmeasured to be 20.1 +- 6.2 MV/m, excluding a few cavities suffering fromserious fabrication or material defects. In the second production of 24 TTFcavities additional quality control measures were introduced, in particular aneddy-current scan to eliminate niobium sheets with foreign material inclusionsand stringent prescriptions for carrying out the electron-beam welds. Theaverage gradient of these cavities at Q0 = 5E+9 amounts to 25.0 +- 3.2 MV/mwith the exception of one cavity suffering from a weld defect. Hence only amoderate improvement in production and preparation technique...

  13. Videolaparoscopia no trauma abdominal

    Directory of Open Access Journals (Sweden)

    Átila Varela Velho

    Full Text Available A videolaparoscopia (VL vem contribuindo de forma crescente, para diagnóstico e terapêutica de várias afecções cirúrgicas abdominais, introduzindo profundas mudanças na cirurgia contemporânea. Esse avanço incorporou-se também às urgências traumáticas, fazendo parte da avaliação diagnóstica e, às vezes, da terapêutica do trauma abdominal. Os autores apresentam uma revisão concisa da literatura sobre a VL no trauma, atualizando o tema e discutindo os aspectos mais relevantes das indicações, limitações e complicações do método.

  14. Abdominal aortic aneurysms

    DEFF Research Database (Denmark)

    Lindholt, Jes Sanddal

    2010-01-01

    Although the number of elective operations for abdominal aortic aneurysms (AAA) is increasing, the sex- and age-standardised mortality rate of AAAs continues to rise, especially among men aged 65 years or more. The lethality of ruptured AAA continues to be 80-95%, compared with 5-7% by elective...... inhibit further AAA progression. All 4 existing RCTs point in the same direction, viz. in favour of screening of men aged 65 and above. We found that screening significantly reduced AAA-related mortality by 67% within the first five years (NNT = 352). Restriction of screening to men with previous...... year gained was 157 euro [1,170 DKK] and the cost per QALY at 178 euro [1,326 DKK]. In all, the ethical dilemma of the prophylactic operation, and the limited psychological side effects seem not to outweigh the benefits of screening. Conclusively, we found that offering men aged 65-73 years screening...

  15. Abdominal migraine in the differential diagnosis of acute abdominal pain.

    Science.gov (United States)

    Cervellin, Gianfranco; Lippi, Giuseppe

    2015-06-01

    Although traditionally regarded as a specific pediatric disease, abdominal migraine may also be observed in adults. Unfortunately, however, this condition is frequently overlooked in the differential diagnosis of abdominal pain in the emergency department (ED). A 30-year-old woman presented to our ED complaining of abdominal pain and vomiting, lasting for 12 hours. The pain was periumbilical, continuous, and not associated with fever or diarrhea. The physical examination and the results of conventional blood tests were normal. The patient was treated with intravenous ketoprofen, metoclopramide, and ranitidine, obtaining a prompt relief of symptoms. She had a history of similar episodes in the last 15 years, with several ED visits, blood test examinations, ultrasonography of the abdomen, and upper gastrointestinal endoscopies. Celiac disease, porphyry, sickle cell disease, and inflammatory bowel disease were all excluded. In July 2012, she became pregnant, and she delivered a healthy baby on April 2013. Until November 2014, she has remained asymptomatic. Based on the clinical characteristics of the abdominal pain episodes, the exclusion of any alternative diagnosis, and the relief of symptoms during and after pregnancy, a final diagnosis of abdominal migraine could be established. A skilled emergency physician should always consider abdominal migraine in the differential diagnosis of patients admitted to the ED with abdominal pain, especially when the attacks are recurrent and no alternative diagnosis can be clearly established.

  16. VACUUM THERAPY VERSUS ABDOMINAL EXERCISES ON ABDOMINAL OBESITY

    Directory of Open Access Journals (Sweden)

    Nevein Mohammed Mohammed Gharib

    2016-06-01

    Full Text Available Background: Obesity is a medical condition that may adversely affect wellbeing and leading to increased incidence of many health problems. Abdominal obesity tends to be associated with weight gain and obesity and it is significantly connected with different disorders like coronary heart disease and type II diabetes mellitus.This study was conducted to investigate the efficacy of vacuum therapy as compared to abdominal exercises on abdominal obesity in overweight and obese women. Methods: Thirtyoverweight and obese women participated in this study with body mass index > 25 kg/m2andwaist circumference ≥ 85 cm. Their ages ranged from 28 - 40 years old.The subjects were excluded if they have diabetes, abdominal infection diseases or any physical limitation restricting exercise ability. They were randomly allocated into two equal groups; group I and group II. Group I received vacuum therapy sessions (by the use of LPG device in addition to aerobic exercise training. Group II received abdominal exercises in addition to the same aerobic exercisesgiven to group I. This study was extended for successive 8 weeks (3 sessions/ week. All subjects were assessed for thickness ofnthe abdominal skin fold, waist circumference and body mass index. Results: The results of this study showeda significant difference between group I and group II post-interventionas regarding to the mean values of waist circumference and abdominal skin fold thickness (p<0.05. Conclusion: It can be concluded that aerobic exercises combined with vacuum therapy (for three sessions/week for successive 8 weeks have a positive effect on women with abdominal obesity in terms of reducing waist circumference and abdominal skin fold thickness.

  17. A rare case of term viable secondary abdominal pregnancy following rupture of a rudimentary horn: a case report

    Directory of Open Access Journals (Sweden)

    Amritha Bhandary

    2009-01-01

    Full Text Available Abstract Introduction Abdominal pregnancy is a rare event, but one that represents a grave risk to the health of the pregnant woman. An abdominal pregnancy is defined as an ectopic pregnancy that implants in the peritoneal cavity. Early abdominal pregnancy is self-limited by hemorrhage from trophoblastic invasion with complete abortion of the gestational sac that leaves a discrete crater. Advanced abdominal pregnancy is a rare event, with high fetal and maternal morbidity and mortality. Case presentation This is a case report of a 22-year-old primigravida with an abdominal pregnancy from a ruptured rudimentary horn. She was diagnosed as a case of term pregnancy with placenta previa with a transverse fetal lie and cervical fibroid and was prepared for an elective cesarean section. Intra-operatively, a live term female baby was extracted from the peritoneal cavity and it turned out to be an abdominal pregnancy from a ruptured rudimentary horn of a unicornuate uterus, which is a very rare condition. Mother and baby were in good condition after such a catastrophic event. Conclusion This case illustrates a rare obstetric condition which can be a severe catastrophic condition leading to maternal mortality and morbidity. It is imperative for every obstetrician to have in mind the possibility of abdominal pregnancy, although rare, especially in pregnant patients with persistent abdominal pain and painful fetal movements.

  18. Coupled resonator vertical cavity laser

    Energy Technology Data Exchange (ETDEWEB)

    Choquette, K.D.; Chow, W.W.; Hou, H.Q.; Geib, K.M.; Hammons, B.E.

    1998-01-01

    The monolithic integration of coupled resonators within a vertical cavity laser opens up new possibilities due to the unique ability to tailor the interaction between the cavities. The authors report the first electrically injected coupled resonator vertical-cavity laser diode and demonstrate novel characteristics arising from the cavity coupling, including methods for external modulation of the laser. A coupled mode theory is used model the output modulation of the coupled resonator vertical cavity laser.

  19. Síndrome compartimental abdominal

    Directory of Open Access Journals (Sweden)

    Misael Guzmán Nápoles

    Full Text Available Desde el siglo XIX se conocen los efectos negativos del aumento de la presión intraabdominal, pero no se le prestó la debida atención a este trastorno hasta la última década del pasado siglo y la primera del actual. En este artículo exponemos las definiciones de los términos presión intrabdominal, hipertensión intrabdominal y síndrome compartimental abdominal, que fueron tomadas por consenso y aprobadas por la World Society of the Abdominal Compartment Syndrome. En nuestro medio, para el diagnóstico de la hipertensión intrabdominal y del síndrome compartimental abdominal se requiere medir la presión intrabdominal, secundariamente la presión de perfusión abdominal y se deben correlacionar estos datos con signos de deterioro clínico en el paciente. Las medidas terapéuticas médicas en relación con el síndrome compartimental abdominal son limitadas; cuando este es sintomático la descompresión abdominal es el tratamiento ya establecido. Enfatizamos en que el diagnóstico temprano de la hipertensión intrabdominal y del síndrome compartimental abdominal contribuyen a disminuir el desarrollo de un síndrome de disfunción múltiple de órganos y por tanto a reducir la mortalidad en estos pacientes. Con el objetivo de actualizar los conocimientos sobre hipertensión intrabdominal y síndrome compartimental abdominal, su diagnóstico y tratamiento, realizamos una minuciosa revisión actualizada de diversos artículos referentes al síndrome compartimental abdominal, tanto en el ámbito nacional como internacional.

  20. Value Analysis of Seldinger Tube Drainage Method of Abdominal Cavity in the Treatment of Severe Acute Pancreatitis%Seldinger置管法腹腔引流术在重症急性胰腺炎治疗中的价值分析

    Institute of Scientific and Technical Information of China (English)

    刘伟; 刘懋春

    2015-01-01

    目的 分析Seldinger置管法腹腔引流术治疗重症急性胰腺炎的效果.方法 重症胰腺炎患者66例随机分为对照组和观察组各33例,对照组采用常规治疗,观察组采用Seldinger置管法腹腔引流术,对比两组患者治疗效果、手术时间与术中出血量等指标.结果 两组总有效率、手术时间、术中出血量差异显著.结论 Seldinger置管法腹腔引流术治疗重症急性胰腺炎效果显著.%Objective To analyze Seldinger catheter abdominal drainage in the treatment of severe acute pancreatitis effect. Methods 66 cases of patients with severe acute pancreatitis were randomly divided into control group and observation group with 33 cases in each group, the control group uses the conventional treatment, the observation group by the Seldinger catheter drainage of abdominal operation, the index method, the effect of time and amount of bleeding during the treatment were compared between the two groups. Results The total efifciency of two groups, operation time, intraoperative bleeding volume were significantly difference. Conclusion Seldinger catheter abdominal drainage in the treatment of severe acute pancreatitis the effect is remarkable.

  1. An abdominal tuberculosis case mimicking an abdominal mass

    African Journals Online (AJOL)

    year-old child with an unusual clinical presentation ... Keywords: abdominal tuberculosis, child, diagnosis. Departments of .... vomiting, gas distension, diarrhea, or constipation), whereas ... senteric echo in the acute stage with peritoneal involve-.

  2. Economics of abdominal wall reconstruction.

    Science.gov (United States)

    Bower, Curtis; Roth, J Scott

    2013-10-01

    The economic aspects of abdominal wall reconstruction are frequently overlooked, although understandings of the financial implications are essential in providing cost-efficient health care. Ventral hernia repairs are frequently performed surgical procedures with significant economic ramifications for employers, insurers, providers, and patients because of the volume of procedures, complication rates, the significant rate of recurrence, and escalating costs. Because biological mesh materials add significant expense to the costs of treating complex abdominal wall hernias, the role of such costly materials needs to be better defined to ensure the most cost-efficient and effective treatments for ventral abdominal wall hernias.

  3. Automatic segmentation of abdominal vessels for improved pancreas localization

    Science.gov (United States)

    Farag, Amal; Liu, Jiamin; Summers, Ronald M.

    2014-03-01

    Accurate automatic detection and segmentation of abdominal organs from CT images is important for quantitative and qualitative organ tissue analysis as well as computer-aided diagnosis. The large variability of organ locations, the spatial interaction between organs that appear similar in medical scans and orientation and size variations are among the major challenges making the task very difficult. The pancreas poses these challenges in addition to its flexibility which allows for the shape of the tissue to vastly change. Due to the close proximity of the pancreas to numerous surrounding organs within the abdominal cavity the organ shifts according to the conditions of the organs within the abdomen, as such the pancreas is constantly changing. Combining these challenges with typically found patient-to-patient variations and scanning conditions the pancreas becomes harder to localize. In this paper we focus on three abdominal vessels that almost always abut the pancreas tissue and as such useful landmarks to identify the relative location of the pancreas. The splenic and portal veins extend from the hila of the spleen and liver, respectively, travel through the abdominal cavity and join at a position close to the head of the pancreas known as the portal confluence. A third vein, the superior mesenteric vein, anastomoses with the other two veins at the portal confluence. An automatic segmentation framework for obtaining the splenic vein, portal confluence and superior mesenteric vein is proposed using 17 contrast enhanced computed-tomography datasets. The proposed method uses outputs from the multi-organ multi-atlas label fusion and Frangi vesselness filter to obtain automatic seed points for vessel tracking and generation of statistical models of the desired vessels. The approach shows ability to identify the vessels and improve localization of the pancreas within the abdomen.

  4. Metasurface external cavity laser

    Energy Technology Data Exchange (ETDEWEB)

    Xu, Luyao, E-mail: luyaoxu.ee@ucla.edu; Curwen, Christopher A.; Williams, Benjamin S. [Department of Electrical Engineering, University of California, Los Angeles, California 90095 (United States); California NanoSystems Institute, University of California, Los Angeles, California 90095 (United States); Hon, Philip W. C.; Itoh, Tatsuo [Department of Electrical Engineering, University of California, Los Angeles, California 90095 (United States); Chen, Qi-Sheng [Northrop Grumman Aerospace Systems, Redondo Beach, California 90278 (United States)

    2015-11-30

    A vertical-external-cavity surface-emitting-laser is demonstrated in the terahertz range, which is based upon an amplifying metasurface reflector composed of a sub-wavelength array of antenna-coupled quantum-cascade sub-cavities. Lasing is possible when the metasurface reflector is placed into a low-loss external cavity such that the external cavity—not the sub-cavities—determines the beam properties. A near-Gaussian beam of 4.3° × 5.1° divergence is observed and an output power level >5 mW is achieved. The polarized response of the metasurface allows the use of a wire-grid polarizer as an output coupler that is continuously tunable.

  5. Abdominal aortic feminism.

    Science.gov (United States)

    Mortimer, Alice Emily

    2014-11-14

    A 79-year-old woman presented to a private medical practice 2 years previously for an elective ultrasound screening scan. This imaging provided the evidence for a diagnosis of an abdominal aortic aneurysm (AAA) to be made. Despite having a number of recognised risk factors for an AAA, her general practitioner at the time did not follow the guidance set out by the private medical professional, that is, to refer the patient to a vascular specialist to be entered into a surveillance programme and surgically evaluated. The patient became symptomatic with her AAA, was admitted to hospital and found to have a tender, symptomatic, 6 cm leaking AAA. She consented for an emergency open AAA repair within a few hours of being admitted to hospital, despite the 50% perioperative mortality risk. The patient spent 4 days in intensive care where she recovered well. She was discharged after a 12 day hospital stay but unfortunately passed away shortly after her discharge from a previously undiagnosed gastric cancer. 2014 BMJ Publishing Group Ltd.

  6. Micromanaging Abdominal Aortic Aneurysms

    Directory of Open Access Journals (Sweden)

    Lars Maegdefessel

    2013-07-01

    Full Text Available The contribution of abdominal aortic aneurysm (AAA disease to human morbidity and mortality has increased in the aging, industrialized world. In response, extraordinary efforts have been launched to determine the molecular and pathophysiological characteristics of the diseased aorta. This work aims to develop novel diagnostic and therapeutic strategies to limit AAA expansion and, ultimately, rupture. Contributions from multiple research groups have uncovered a complex transcriptional and post-transcriptional regulatory milieu, which is believed to be essential for maintaining aortic vascular homeostasis. Recently, novel small noncoding RNAs, called microRNAs, have been identified as important transcriptional and post-transcriptional inhibitors of gene expression. MicroRNAs are thought to “fine tune” the translational output of their target messenger RNAs (mRNAs by promoting mRNA degradation or inhibiting translation. With the discovery that microRNAs act as powerful regulators in the context of a wide variety of diseases, it is only logical that microRNAs be thoroughly explored as potential therapeutic entities. This current review summarizes interesting findings regarding the intriguing roles and benefits of microRNA expression modulation during AAA initiation and propagation. These studies utilize disease-relevant murine models, as well as human tissue from patients undergoing surgical aortic aneurysm repair. Furthermore, we critically examine future therapeutic strategies with regard to their clinical and translational feasibility.

  7. Abdominal Incisional Endometriosis Following Cesarean Section: Report of 2 Cases

    Directory of Open Access Journals (Sweden)

    Azam Azargoon

    2008-06-01

    Full Text Available Endometriosis is described as the presence of functioning endometrial tissue (glands and stroma outside the uterine cavity. The most common location is within the pelvis. However, extra pelvic endometriosis is a fairly uncommon disorder and difficult to diagnose. It can sometimes occur in a surgical scar. Scar endometriosis is a rare condition and difficult to diagnose. It mostly follows obstetrical and gynecological surgeries. It presents as a painful, slowly growing mass in or near a surgical scar. We report two cases of abdominal wall endometriosis following hysterotomy and cesarean section. Consequently the pathogenesis, diagnosis and treatment are discussed.

  8. [Monitoring of intra-abdominal pressure and abdominal perfusion pressure in urgent abdominal surgery].

    Science.gov (United States)

    Raĭbuzhis, E N; Fot, E V; Gaĭdukov, K M; Kirov, M Iu

    2014-01-01

    To evaluate the changes in intra-abdominal pressure (IAP) and abdominal perfusion pressure (APP) during perioperative period in urgent abdominal surgery and to assess the relationship of these parameters with gas exchange and tissue perfusion. Twenty-four patients undergoing emergency abdominal surgery were enrolled into a prospective observational study. We recorded IAP APP, mean arterial pressure, arterial and venous blood gases after induction of anesthesia, at the end of surgery, and 6, 12, 48 and 72 h postoperatively. LAP was measured by nasogastric tube using CiMON monitor (Pulsion Medical Systems, Germany). In addition, we studied the relationship of IAP and APP with blood gases parameters. We observed perioperative increase of IAP (> 12 mm Hg) in 75% of enrolled patients, tendency to postoperative rise of IAP and transient increase of arterial lactate at 6 h after surgery. APP remained within normal values. We found positive correlation of APP with PaO2/FiO2 and ScvO2 at 72 hours after surgery. Transient perioperative increase of IAP was observed in 75% patients undergoing urgent abdominal surgery; however in parallel with intensive care the abdominal perfusion pressure remained within normal values. Abdominal perfusion is related with arterial oxygenation and central venous saturation.

  9. Implanting intra-abdominal radiotransmitters with external whip antennas in ducks

    Science.gov (United States)

    Korschgen, C.E.; Kenow, K.P.; Gendron-Fitzpatrick, A.; Green, W.L.; Dein, F.J.

    1996-01-01

    We developed and evaluated a surgical procedure for implanting intra-abdominal radiotransmitters with external whip antennas in captive mallards (Anas platyrhynchos). Transmitters were implanted in the abdominal cavity and the antennas exited through the caudal abdominal wall and skin. Birds with implanted transmitters developed mild to moderate localized air sac reactions. These reactions involved adhesions of the right anterior abdominal air sac to the liver with contractions around the transmitters and antenna catheters. The adhesions were reinforced by a proliferation of connective tissue and lined by multinucleated giant cells (foreign body reaction). Casual observation indicated that neither behavior nor activity of the birds was altered by the histological reaction to the transmitter implant. No increase in systemic lesions (particularly liver or kidney) could be correlated with the histological reactions. Our evaluations indicate that the procedure is a reliable method for radiomarking ducks and the technique has been successfully used in 2 field studies.

  10. Single incision laparoscopic total abdominal colectomy with ileorectal anastomosis for synchronous colon cancer.

    Science.gov (United States)

    Bardakcioglu, O; Ahmed, S

    2010-09-01

    Single incision laparoscopy is currently performed mostly for basic laparoscopic procedures involving single abdominal quadrants. The aim of this case report is to show that single incision laparoscopic techniques can be utilized for complex abdominal laparoscopic procedures with a large target organ and a working space involving all quadrants of the abdominal cavity. A single incision laparoscopic total abdominal colectomy with an ileorectal anastomosis and intraoperative CO(2) colonoscopy was performed for a patient with synchronous adenocarcinoma of the cecum and the sigmoid colon. The patient was discharged home on postoperative day 4 and had no immediate postoperative complications. Single incision laparoscopy is feasible for complex colorectal procedures. Some of the techniques used may be adapted further to achieve colonic resection via a natural orifice in the future.

  11. Experimental investigation of cavity flows

    Energy Technology Data Exchange (ETDEWEB)

    Loeland, Tore

    1998-12-31

    This thesis uses LDV (Laser Doppler Velocimetry), PIV (Particle Image Velocimetry) and Laser Sheet flow Visualisation to study flow inside three different cavity configurations. For sloping cavities, the vortex structure inside the cavities is found to depend upon the flow direction past the cavity. The shape of the downstream corner is a key factor in destroying the boundary layer flow entering the cavity. The experimental results agree well with numerical simulations of the same geometrical configurations. The results of the investigations are used to find the influence of the cavity flow on the accuracy of the ultrasonic flowmeter. A method to compensate for the cavity velocities is suggested. It is found that the relative deviation caused by the cavity velocities depend linearly on the pipe flow. It appears that the flow inside the cavities should not be neglected as done in the draft for the ISO technical report on ultrasonic flowmeters. 58 refs., 147 figs., 2 tabs.

  12. Children's (Pediatric) Abdominal Ultrasound Imaging

    Medline Plus

    Full Text Available ... imaging can also: help a physician determine the source of abdominal pain, such as gallstones, kidney stones, ... Send us your feedback Did you find the information you were looking for? Yes No Please type ...

  13. Children's (Pediatric) Abdominal Ultrasound Imaging

    Medline Plus

    Full Text Available ... children. Except for traumatic injury, appendicitis is the most common reason for emergency abdominal surgery. Ultrasound imaging ... of page How is the procedure performed? For most ultrasound exams, you will be positioned lying face- ...

  14. Intra-abdominal tuberculous peritonitis

    Energy Technology Data Exchange (ETDEWEB)

    Schneider, G.; Ahlhelm, F.; Altmeyer, K.; Kramann, B. [Dept. of Diagnostic Radiology, University Hospital, Homburg (Germany); Hennes, P. [Dept. of Pediatrics, University Hospital, Homburg (Germany); Pueschel, W. [Dept. of Pathology, University Hospital, Homburg (Germany); Karadiakos, N. [Dept. of Pediatric Surgery, University Hospital, Homburg (Germany)

    2001-07-01

    We report the case of a 15-year-old boy suffering from progressive dyspnea on exertion and painful abdominal protrusion. Final diagnosis of intra-abdominal tuberculosis (TB), including lymphadenopathy and abdominal abscess formation, was made following elective laparotomy. This type of disease is a rare manifestation of extrapulmonary tuberculosis. The imaging findings in unenhanced and contrast-enhanced MRI and laparoscopic images are presented. Differential diagnosis of abdominal abscess formation and other fungal or bacteriological infections, as well as the imaging findings of this type of lesion, are discussed. This case demonstrates that atypical manifestation of TB may remain unrecognized; thus, awareness of this kind of manifestation of tuberculosis may prevent patients from being subjected to inappropriate therapies. (orig.)

  15. Children's (Pediatric) Abdominal Ultrasound Imaging

    Medline Plus

    Full Text Available ... located within a child's abdomen. A Doppler ultrasound study may be part of a child's abdominal ultrasound ... pain from the procedure. If a Doppler ultrasound study is performed, your child may actually hear pulse- ...

  16. Children's (Pediatric) Abdominal Ultrasound Imaging

    Medline Plus

    Full Text Available ... of page What are some common uses of the procedure? Abdominal ultrasound imaging is performed to evaluate ... for ultrasound examinations. top of page What does the equipment look like? Ultrasound scanners consist of a ...

  17. Disseminated Intra-Abdominal Hydatidosis

    Science.gov (United States)

    Concha, Fátima; Maguiña, Ciro; Seas, Carlos

    2013-01-01

    We present the case of a 26-year-old male Peruvian patient who presented with disseminated intra-abdominal hydatidosis. The patient was treated with surgical removal of the cysts and prolonged medical treatment with albendazole. PMID:24006293

  18. Abdominal Actinomycetoma With Lymphnode Involvement

    Directory of Open Access Journals (Sweden)

    Damisetty Rajetha

    2004-01-01

    Full Text Available Actinomycotic mycetoma of the anterior abdominal wall with inguinal lymphnode involvement, an exceedingly rare entity is described here with mycological histological features. Remarkable therapeutic response was noted with Welsh regimen.

  19. Children's (Pediatric) Abdominal Ultrasound Imaging

    Medline Plus

    Full Text Available ... your doctor if there are specific instructions for eating and drinking prior to the exam. Your child ... for laboratory testing help detect the presence and cause of an apparent enlarged abdominal organ identify the ...

  20. Children's (Pediatric) Abdominal Ultrasound Imaging

    Medline Plus

    Full Text Available ... valuable for evaluating abdominal, pelvic or scrotal pain in children. Preparation will depend on the type of ... examinations do not use ionizing radiation (as used in x-rays ), thus there is no radiation exposure ...

  1. Children's (Pediatric) Abdominal Ultrasound Imaging

    Medline Plus

    Full Text Available ... of an apparent enlarged abdominal organ identify the location of abnormal fluid in the abdomen help determine ... places the transducer on the skin in various locations, sweeping over the area of interest or angling ...

  2. Children's (Pediatric) Abdominal Ultrasound Imaging

    Medline Plus

    Full Text Available ... collects the sounds that bounce back and a computer then uses those sound waves to create an ... located within a child's abdomen. A Doppler ultrasound study may be part of a child's abdominal ultrasound ...

  3. Children's (Pediatric) Abdominal Ultrasound Imaging

    Medline Plus

    Full Text Available ... ultrasound images are captured in real-time, they can show the structure and movement of the body's ... kidneys bladder testicles ovaries uterus Abdominal ultrasound images can be used to help diagnose appendicitis in children. ...

  4. Children's (Pediatric) Abdominal Ultrasound Imaging

    Medline Plus

    Full Text Available ... child's abdominal ultrasound examination. Doppler ultrasound , also called color Doppler ultrasonography, is a special ultrasound technique that ... and processes the sounds and creates graphs or color pictures that represent the flow of blood through ...

  5. Children's (Pediatric) Abdominal Ultrasound Imaging

    Medline Plus

    Full Text Available ... of page What are some common uses of the procedure? Abdominal ultrasound imaging is performed to evaluate ... for ultrasound examinations. top of page What does the ultrasound equipment look like? Ultrasound scanners consist of ...

  6. Updates on abdominal desmoid tumors

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    Desmoid tumor is a monoclonal, fibroblastic proliferation arising in musculoaponeurotic structures. This connective tissue hyperplasia infiltrates locally, recurs frequentiy after resection but does not metastasize. Abdominal desmoid occurs sporadically, in association with some familial syndromes and often represents a clinical dilemma for surgeons. The enigmatic biology and anatomical location of abdominal desmoids make treatment recommendations difficult. This distinct pathological entity is reviewed with a specific focus on aetiology and management.

  7. Common abdominal emergencies in children.

    Science.gov (United States)

    D'Agostino, James

    2002-02-01

    Because young children often present to EDs with abdominal complaints, emergency physicians must have a high index of suspicion for the common abdominal emergencies that have serious sequelae. At the same time, they must realize that less serious causes of abdominal symptoms (e.g., constipation or gastroenteritis) are also seen. A gentle yet thorough and complete history and physical examination are the most important diagnostic tools for the emergency physician. Repeated examinations and observation are useful tools. Physicians should listen carefully to parents and their children, respect their concerns, and honor their complaints. Ancillary tests are inconsistent in their value in assessing these complaints. Abdominal radiographs can be normal in children with intussusception and even malrotation and early volvulus. Unlike the classic symptoms seen in adults, young children can display only lethargy or poor feeding in cases of appendicitis or can appear happy and playful between paroxysmal bouts of intussusception. The emergency physician therefore, must maintain a high index of suspicion for serious pathology in pediatric patients with abdominal complaints. Eventually, all significant abdominal emergencies reveal their true nature, and if one can be patient with the child and repeat the examinations when the child is quiet, one will be rewarded with the correct diagnosis.

  8. Statistical electromagnetics: Complex cavities

    NARCIS (Netherlands)

    Naus, H.W.L.

    2008-01-01

    A selection of the literature on the statistical description of electromagnetic fields and complex cavities is concisely reviewed. Some essential concepts, for example, the application of the central limit theorem and the maximum entropy principle, are scrutinized. Implicit assumptions, biased choic

  9. LEP superconducting cavity

    CERN Multimedia

    1995-01-01

    Engineers work in a clean room on one of the superconducting cavities for the upgrade to the LEP accelerator, known as LEP-2. The use of superconductors allow higher electric fields to be produced so that higher beam energies can be reached.

  10. Finemet cavity impedance studies

    CERN Document Server

    Persichelli, S; Migliorati, M; Salvant, B

    2013-01-01

    The aim of the study is to evaluate the impedance of the Finemet kicker cavity to be installed in the PS straight section 02 during LS1, under realistic assumptions of bunch length. Time domain simulations with CST Particle Studio have been performed in order to get the impedance of the cavity and make a comparison with the longitudinal impedance measured for a single cell prototype. The study has been performed on simplified 3D geometries imported from a mechanical CATIA drawing, assuming that the simplications have small impact on the nal results. Simulations confirmed that the longitudinal impedance observed with measurements can be excited by bunches circulating in the PS. In the six-cells Finemet cavity, PS bunches circulating in the center can excite a longitudinal impedance, the real part of which has a maximum of 2 kOhm at 4 MHz. This mode does not seem to have any transverse component. All the eigenmodes of the cavity are strongly damped by the Finemet rings: we predict to have no issues regarding tr...

  11. Melatonin and oral cavity.

    Science.gov (United States)

    Cengiz, Murat İnanç; Cengiz, Seda; Wang, Hom-Lay

    2012-01-01

    While initially the oral cavity was considered to be mainly a source of various bacteria, their toxins and antigens, recent studies showed that it may also be a location of oxidative stress and periodontal inflammation. Accordingly, this paper focuses on the involvement of melatonin in oxidative stress diseases of oral cavity as well as on potential therapeutic implications of melatonin in dental disorders. Melatonin has immunomodulatory and antioxidant activities, stimulates the proliferation of collagen and osseous tissue, and acts as a protector against cellular degeneration associated with aging and toxin exposure. Arising out of its antioxidant actions, melatonin protects against inflammatory processes and cellular damage caused by the toxic derivates of oxygen. As a result of these actions, melatonin may be useful as a coadjuvant in the treatment of certain conditions of the oral cavity. However, the most important effect of melatonin seems to result from its potent antioxidant, immunomodulatory, protective, and anticancer properties. Thus, melatonin could be used therapeutically for instance, locally, in the oral cavity damage of mechanical, bacterial, fungal, or viral origin, in postsurgical wounds caused by tooth extractions and other oral surgeries. Additionally, it can help bone formation in various autoimmunological disorders such as Sjorgen syndrome, in periodontal diseases, in toxic effects of dental materials, in dental implants, and in oral cancers.

  12. Melatonin and Oral Cavity

    Directory of Open Access Journals (Sweden)

    Murat İnanç Cengiz

    2012-01-01

    Full Text Available While initially the oral cavity was considered to be mainly a source of various bacteria, their toxins and antigens, recent studies showed that it may also be a location of oxidative stress and periodontal inflammation. Accordingly, this paper focuses on the involvement of melatonin in oxidative stress diseases of oral cavity as well as on potential therapeutic implications of melatonin in dental disorders. Melatonin has immunomodulatory and antioxidant activities, stimulates the proliferation of collagen and osseous tissue, and acts as a protector against cellular degeneration associated with aging and toxin exposure. Arising out of its antioxidant actions, melatonin protects against inflammatory processes and cellular damage caused by the toxic derivates of oxygen. As a result of these actions, melatonin may be useful as a coadjuvant in the treatment of certain conditions of the oral cavity. However, the most important effect of melatonin seems to result from its potent antioxidant, immunomodulatory, protective, and anticancer properties. Thus, melatonin could be used therapeutically for instance, locally, in the oral cavity damage of mechanical, bacterial, fungal, or viral origin, in postsurgical wounds caused by tooth extractions and other oral surgeries. Additionally, it can help bone formation in various autoimmunological disorders such as Sjorgen syndrome, in periodontal diseases, in toxic effects of dental materials, in dental implants, and in oral cancers.

  13. Niobium superconducting cavity

    CERN Multimedia

    CERN PhotoLab

    1980-01-01

    This 5-cell superconducting cavity, made from bulk-Nb, stems from the period of general studies, not all directed towards direct use at LEP. This one is dimensioned for 1.5 GHz, the frequency used at CEBAF and also studied at Saclay (LEP RF was 352.2 MHz). See also 7908227, 8007354, 8209255, 8210054, 8312339.

  14. Vertical cavity laser

    DEFF Research Database (Denmark)

    2016-01-01

    The present invention provides a vertical cavity laser comprising a grating layer comprising an in-plane grating, the grating layer having a first side and having a second side opposite the first side and comprising a contiguous core grating region having a grating structure, wherein an index...

  15. Filling a Conical Cavity

    Science.gov (United States)

    Nye, Kyle; Eslam-Panah, Azar

    2016-11-01

    Root canal treatment involves the removal of infected tissue inside the tooth's canal system and filling the space with a dense sealing agent to prevent further infection. A good root canal treatment happens when the canals are filled homogeneously and tightly down to the root apex. Such a tooth is able to provide valuable service for an entire lifetime. However, there are some examples of poorly performed root canals where the anterior and posterior routes are not filled completely. Small packets of air can be trapped in narrow access cavities when restoring with resin composites. Such teeth can cause trouble even after many years and lead the conditions like acute bone infection or abscesses. In this study, the filling of dead-end conical cavities with various liquids is reported. The first case studies included conical cavity models with different angles and lengths to visualize the filling process. In this investigation, the rate and completeness at which a variety of liquids fill the cavity were observed to find ideal conditions for the process. Then, a 3D printed model of the scaled representation of a molar with prepared post spaces was used to simulate the root canal treatment. The results of this study can be used to gain a better understanding of the restoration for endodontically treated teeth.

  16. To Explore the Effect of Trinity Comprehensive Treatment Including Abdominal Cavity Perfusion Chemotherapy, RF Deep Thermal Therapy and the Immune Therapy in the Treatment of Advanced Ovarian Cancer%腹腔热灌注化疗、体外射频深部热疗、免疫治疗三位一体综合治疗在晚期卵巢癌中的临床应用

    Institute of Scientific and Technical Information of China (English)

    王俊芳; 崔萍; 毛莉; 张延志; 程丽娟

    2015-01-01

    Objective To evaluate the effect of the trinity comprehensive treatment including the peritoneal cavity hot perfusion chemotherapy, the deep in vitro rf heat therapy and the immune therapy of the treatment for the patients with advanced ovarian cancer.Methods42 cases of patients with advanced epithelial ovarian cancer in our department were selected as the research object. The patients were randomly divided into treatment group and intraperitoneal chemotherapy group. The indicators including the ascites control, KPS score after treatment, CA125 half-life and the incidence of bone marrow suppression were analyzed. Results42 cases of patients had complete 6 courses of chemotherapy. The results of the indicators were: control of ascites (90.9%: 90.9%), KPS score comparison after treatment (31.8%: 60.0%), CA125 half-life (17.3 +/- 5.1 days, 13.4 +/- 4.5 days) and the incidence of bone marrow suppression (18.2%: 40.0%). Conclusion The trinity comprehensive therapy "Hot perfusion chemotherapy combined with abdominal cavity with deep in vitro rf heat therapy, immune therapy" in the treatment of advanced ovarian cancer can signiifcantly improve the ascites control, increase the KPS score, shorten the CA125 half-life and reduce the incidence of bone marrow suppression. This method can improve the body immunity, promote hemopoietic function which is a kind of effective treatment for advanced ovarian cancer. It can improve the survival rate and life quality of advanced ovarian cancer patients.%目的:评价腹腔热灌注化疗联合体外射频深部热疗、免疫治疗三位一体综合治疗在晚期卵巢癌中的临床应用。方法将我科收治晚期上皮性卵巢癌患者42例作为研究对象。将其随机分为综合治疗组和腹腔化疗组。分析两组腹水控制率、治疗后KPS评分、CA125半衰期、骨髓抑制发生率。结果42例病人均完成全部6疗程化疗,两组观察指标分别是:腹水控制率(90.9%:75.0%

  17. A case of Behcet's disease with aneurysms of common carotid arteries and abdominal aorta

    Energy Technology Data Exchange (ETDEWEB)

    Choo, Yeon Myung; Chang, Kee Hyun; Choi, Sung Jae [Seoul National University College of Medicine, Seoul (Korea, Republic of)

    1984-06-15

    One case of Behcet's disease with multiple aneurysms in both common carotid arteries and abdominal aorta is presented with brief review of the literatures. A 26-year-old woman had slowly enlarging pulsatile masses in both sides of neck and recurrent ulcerations in oral cavity and genitalia. One day prior to admission, aphasia, right facial nerve palsy and right hemiplegia suddenly developed. Brain CT showed acute infarction in left basal ganglia. Both Carotid Angiography and abdominal Aortography demonstrated multiple aneurysms in both common carotid arteries and abdominal aorta with organizing thrombi and thromboembolism of internal carotid artery.

  18. Unsupervised quantification of abdominal fat from CT images using Greedy Snakes

    Science.gov (United States)

    Agarwal, Chirag; Dallal, Ahmed H.; Arbabshirani, Mohammad R.; Patel, Aalpen; Moore, Gregory

    2017-02-01

    Adipose tissue has been associated with adverse consequences of obesity. Total adipose tissue (TAT) is divided into subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT). Intra-abdominal fat (VAT), located inside the abdominal cavity, is a major factor for the classic obesity related pathologies. Since direct measurement of visceral and subcutaneous fat is not trivial, substitute metrics like waist circumference (WC) and body mass index (BMI) are used in clinical settings to quantify obesity. Abdominal fat can be assessed effectively using CT or MRI, but manual fat segmentation is rather subjective and time-consuming. Hence, an automatic and accurate quantification tool for abdominal fat is needed. The goal of this study is to extract TAT, VAT and SAT fat from abdominal CT in a fully automated unsupervised fashion using energy minimization techniques. We applied a four step framework consisting of 1) initial body contour estimation, 2) approximation of the body contour, 3) estimation of inner abdominal contour using Greedy Snakes algorithm, and 4) voting, to segment the subcutaneous and visceral fat. We validated our algorithm on 952 clinical abdominal CT images (from 476 patients with a very wide BMI range) collected from various radiology departments of Geisinger Health System. To our knowledge, this is the first study of its kind on such a large and diverse clinical dataset. Our algorithm obtained a 3.4% error for VAT segmentation compared to manual segmentation. These personalized and accurate measurements of fat can complement traditional population health driven obesity metrics such as BMI and WC.

  19. Diagnosis and Management of Severe Acute Pancreatitis Complicated with Abdominal Compartment Syndrome

    Institute of Scientific and Technical Information of China (English)

    陶京; 王春友; 陈立波; 杨智勇; 许逸卿; 熊炯炘; 周峰

    2003-01-01

    Presented in this paper is our experience in the diagnosis and management of abdominal compartment syndrome during severe acute pancreatitis. On the basis of the history of severe acute pancreatitis, after effective fluid resuscitation, if patients developed renal, pulmonary and cardiac insufficiency after abdominal expansion and abdominal wall tension, ACS should be considered.Cystometry could be performed to confirm the diagnosis. Emergency decompressive celiotomy and temporary abdominal closure with a 3 liter sterile plastic bag must be performed. It is also critical to prevent reperfusion syndrome. In 23 cases of ACS, 18 cases received emergency decompressive celiotomy and 5 cases did not. In the former, 3 patients died (16.7 %) while in the later, 4 (80%)died. Total mortality rate was 33.3% (7/21). In 7 death cases, 4 patients developed acute obstructive suppurative cholangitis (AOSC). All the patients who received emergency decompressive celiotomy 5 h after confirmation of ACS survived. The definitive abdominal closure took place mostly 3 to 5 days after emergency decompressive celiotomy, with longest time being 8 days. 6 cases of ACS at infection stage were all attributed to infected necrosis in abdominal cavity and retroperitoneum. ACS could occur in SIRS stage and infection stage during SAP, and has different pathophysiological basis. Early diagnosis, emergency decompressive celiotomy and temporary abdominal closure with a 3L sterile plastic bag are the keys to the management of the condition.

  20. Teleportation of Cavity Field States via Cavity QED

    CERN Document Server

    Guerra, E S

    2004-01-01

    In this article we discuss two schemes of teleportation of cavity field states. In the first scheme we consider cavities prepared in a coherent state and in the second scheme we consider cavities prepared in a superposition of zero and one Fock states.

  1. Influence on early diagnosis of inflammatory cytokines abdominal cavity brainage inflammatory cytokines on biliary fistula after biliary tract surgery%胆道手术后腹腔引流液中炎性因子检测对胆瘘的早期诊断的影响

    Institute of Scientific and Technical Information of China (English)

    王长起

    2011-01-01

    Objective Biliary tract surgery is a serious life - threatening complications in patients , postoperative abdominal drainage fluid through the detection of inflammatory factors, early diagnosis of biliary fistula and timely manner. Methods January 2010 ~ January 2011 during the implementation of 200 patients with various types of biliary tract surgery. In the 1 ,3 and 5 days after the first detection of peritoneal drainage fluid inflammatory cytokines IL -6, IL -8, IL - 10, TNF - α changes. Results Totally 11 patients with biliary fistula, postoperative abdominal drainage fluid inflammatory cytokines were significantly higher than the group without biliary fistula. Conclusions The peritoneal drainage fluid levels of inflammatory cytokines detection can do early diagnosis for biliary fistula and avoid serious consequences.%目的 胆道手术后胆瘘是一种严重威胁患者生命的并发症,通过检测术后腹腔引流液炎性因子,对胆瘘进行早期诊断并及时处理.方法 2010年1月-2011年1月期间,200例患者实施各种类型胆道手术.在术后第1、3和5d检测腹腔引流液中炎性细胞因子IL-6、IL-8、IL-10、TNF-α的变化.结果 11例胆瘘患者术后腹腔引流液中,炎性细胞因子水平显著高于未胆瘘组.结论 腹腔引流液炎性细胞因子水平检测,可对胆瘘进行早期诊断,避免严重后果.

  2. Non-traumatic abdominal emergencies: imaging and intervention in sepsis

    Energy Technology Data Exchange (ETDEWEB)

    Lee, M.J. [Department of Radiology, Beaumont Hospital and the Royal College of Surgeons Medical, Beaumont Road, Dublin 9 (Ireland)

    2002-09-01

    Cross-sectional imaging, in particular CT, has become the main method of detecting abdominal collections. Indium-labelled white-cell scintigraphy and gallium scintigraphy are reserved for patients in whom there is a high clinical suspicion of abdominal sepsis but CT has not revealed a source of sepsis. Scintigraphy is also used in patients with suspected vascular graft infections or suspected infected hip prostheses. Percutaneous abscess drainage (PAD) has revolutionised the treatment of abdominal abscesses over the past 20 years, with repeat laparotomy for postoperative abscesses becoming a rare event. Ultrasound or CT can be used to guide PAD. Choosing an access route that does not cross intervening organs is of crucial importance to the safe performance of PAD. The Trocar or Seldinger techniques can be used with equal success. The cavity should be aspirated until dry and irrigated with saline. Repeat imaging after drainage is helpful to detect any undrained locules. PAD endpoints include patient defervescence, reduction in white blood cell count and catheter drainage of less than 10 ml per day. Details regarding PAD in specific abdominal regions are discussed. Success rates for PAD are high (close to 90%) in most abdominal organs. Slightly lower success rates are seen with PAD of pancreatic abscesses and abscesses associated with fistulas (60-85% success rates). Complication rates lie between 0% and 10%. Complications can be minimised by ensuring that the patient has broad spectrum antibiotic coverage before drainage, by carefully planning the access route and by ensuring diligent post-procedure care by radiology staff. (orig.)

  3. [Laparoscopic treatment of abdominal wall hernias: prosthesis material comparison].

    Science.gov (United States)

    Biondi, A; Tropea, A; Monaco, N; Musmeci, G; Basile, G; Basile, F

    2011-12-01

    Hernia is due to abdominal wall weakening. This allows the contents of the abdomen to protrude from normal boundaries. Hernias are repaired by implanting a sterile surgical mesh to strengthen the weakened abdominal wall. Aim of this study is to compare the results obtained by bard Composix® L/P mesh or Dualmesh Plus Gore® implanting. The mesh has various beneficial characteristics. It is a reinforcing material for the abdominal wall, even when in the direct contact with the intestinal tract does not cause adhsion problems. The use of biocompatible materials is necessary in laparoscopic hernia repair. e-PTFE prosthesis and Dual Mesh® were the first to be used for laparoscopic treatment of the abdominal wall defects. These prosthesis are the result of many improvements, actually they are 1-mm thick and the two surfaces have different characteristics. Compound meshes are composed by e-PTFE and polypropylene with different percentage of the two materials and methods of interactions. The incidence of early complications were poor in relation to both types of implants, only seroma cases e-PTFE treated showed a prevalence of complication, in agreement with literature. About relapses in our experience we found that e-PTFE cases were predominantly. Dual Mesh® has better adaptability than Bard Composix®, which allows easier placement of the prosthesis as well as a better adaptation to the wall surface. The Bard Composix®, thanks to rigidity due to the polypropylene component has better handling than the Dual Mesh®, as it promotes a rapid and easy deployment of the prosthesis inside the abdominal cavity, favoring its positioning. The use of both prosthesis depends also on the experience specific to each operator, moreover, a rigorous surgical technique remains fundamental for the application of the mesh used.

  4. Robotic applications in abdominal surgery: their limitations and future developments.

    Science.gov (United States)

    Taylor, G W; Jayne, D G

    2007-03-01

    In the past 20 years, the technical aspects of abdominal surgery have changed dramatically. Operations are now routinely performed by laparoscopic techniques utilizing small abdominal incisions, with less patient discomfort, earlier recovery, improved cosmesis, and in many cases reduced economic burden on the healthcare provider. These benefits have largely been seen in the application of laparoscopic techniques to relatively straightforward procedures. It is not clear whether the same benefits carry through to more complex abdominal operations, which are more technically demanding and for which current laparoscopic instrumentation is less well adapted. The aim of surgical robotics is to address these problems and allow the advantages of minimal access surgery to be seen in a greater range of operations. A literature search was performed to ascertain the current state of the art in surgical robotics for the abdomen, and the technologies emerging within this field. The reference lists of the sourced articles were also searched for further relevant papers. Currently available robotic devices for abdominal surgery are limited to large, costly 'slave-master' or telemanipulator systems, such as the da Vinci (Intuitive Surgical, Sunny Vale, CA). In addition to their size and expense, these systems share the same limitation, by virtue of the fulcrum effect on instrument manipulation inherent in the use of ports by which external instruments gain access to the abdominal cavity. In order to overcome these limitations several smaller telemanipulator systems are being developed, and progress towards freely mobile intracorporeal devices is being made. While current robotic systems have considerable advantages over conventional laparoscopic techniques, they are not without limitations. Miniaturisation of robotic components and systems is feasible and necessary to allow minimally invasive techniques to reach full potential. The ultimate extrapolation of this progress is the

  5. Intra-abdominal fat. Part I. The images of the adipose tissue localized beyond organs.

    Science.gov (United States)

    Smereczyński, Andrzej; Kołaczyk, Katarzyna; Bernatowicz, Elżbieta

    2015-09-01

    Unaltered fat is a permanent component of the abdominal cavity, even in slim individuals. Visceral adiposity is one of the important factors contributing to diabetes, cardiovascular diseases and certain neoplasms. Moreover, the adipose tissue is an important endocrine and immune organ of complex function both when normal and pathological. Its role in plastic surgery, reconstruction and transplantology is a separate issue. The adipose tissue has recently drawn the attention of research institutes owing to being a rich source of stem cells. This review, however, does not include these issues. The identification of fat is relatively easy using computed tomography and magnetic resonance imaging. It can be more difficult in an ultrasound examination for several reasons. The aim of this paper is to present various problems associated with US imaging of unaltered intra-abdominal fat located beyond organs. Based on the literature and experience, it has been demonstrated that the adipose tissue in the abdominal cavity has variable echogenicity, which primarily depends on the amount of extracellular fluid and the number of connective tissue septa, i.e. elements that potentiate the number of areas that reflect and scatter ultrasonic waves. The normal adipose tissue presents itself on a broad gray scale: from a hyperechoic area, through numerous structures of lower reflection intensity, to nearly anechoic regions mimicking the presence of pathological fluid collections. The features that facilitate proper identification of this tissue are: sharp margins, homogeneous structure, high compressibility under transducer pressure, no signs of infiltration of the surrounding structures and no signs of vascularization when examined with the color and power Doppler. The accumulation of fat tissue in the abdominal cavity can be generalized, regional or focal. The identification of the adipose tissue in the abdominal cavity using ultrasonography is not always easy. When in doubt, the

  6. Abdominal neurenteric cyst

    Institute of Scientific and Technical Information of China (English)

    Radoje (C)olovi(c); MarJan Micev; Miodrag Jovanovi(c); Slavko Mati(c); Nikica Grubor; Henry Dushan E Atkinson

    2008-01-01

    immunoexpression, and the respiratory epithelium revealed a CK8 and CK18 immunoprofile without CK 10/13 positive elements, though neither CEA or AFP positive cells were found. To our knowledge, this is the first reported case of an abdominally located neurenteric cyst with no associated spinal anomalies.

  7. Optimization of photonic crystal cavities

    DEFF Research Database (Denmark)

    Wang, Fengwen; Sigmund, Ole

    2017-01-01

    We present optimization of photonic crystal cavities. The optimization problem is formulated to maximize the Purcell factor of a photonic crystal cavity. Both topology optimization and air-hole-based shape optimization are utilized for the design process. Numerical results demonstrate...... that the Purcell factor of the photonic crystal cavity can be significantly improved through optimization....

  8. Hollow waveguide cavity ringdown spectroscopy

    Science.gov (United States)

    Dreyer, Chris (Inventor); Mungas, Greg S. (Inventor)

    2012-01-01

    Laser light is confined in a hollow waveguide between two highly reflective mirrors. This waveguide cavity is used to conduct Cavity Ringdown Absorption Spectroscopy of loss mechanisms in the cavity including absorption or scattering by gases, liquid, solids, and/or optical elements.

  9. A clinical dilemma: abdominal tuberculosis

    Institute of Scientific and Technical Information of China (English)

    Oya Uygur-Bayramicli; G(u)l Dabak; Resat Dabak

    2003-01-01

    AIM: To evaluate the clinical, radiological and microbiological properties of abdominal tuberculosis (TB) and to discuss methods needed to get the diagnosis.METHODS: Thirty-one patients diagnosed as abdominal TB between March 1998 and December 2001 at the Gastroenterology Department of Kartal State Hospital,Istanbul, Turkey were evaluated prospectively. Complete physical examination, medical and family history, blood count erythrocyte sedimentation rate, routine biochemical tests,Mantoux skin test, chest X-ray and abdominal ultrasonography (USG) were performed in all cases, whereas microbiological examination of ascites, upper gastrointestinal endoscopy, colonoscopy or barium enema, abdominal tomography, mediastinoscopy, laparoscopy or laparotomy were done when needed.RESULTS: The median age of patients (14 females, 17males) was 34.2 years (range 15-65 years). The most frequent symptoms were abdominal pain and weight loss.Eleven patients had active pulmonary TB. The most common abdominal USG findings were ascites and hepatomegaly. Ascitic fluid analysis performed in 13 patients was found to be exudative and acid resistant bacilli were present in smear and cultured only in one patient with BacTec (3.2 %). Upper gastrointestinal endoscopy yielded nonspecific findings in 16 patients. Colonoscopy performed in 20 patients showed ulcers in 9 (45 %), nodules in 2 (10 %)and, stricture, polypoid lesions, granulomatous findings in terminal ileum and rectal fistula each in one patient (5 %).Laparoscopy on 4 patients showed dilated bowel loops,thickening in the mesentery, multiple ulcers and tubercles on the peritoneum. Patients with abdominal TB were divided into three groups according to the type of involvement.Fifteen patients (48 %) had intestinal TB, L1 patients (35.2 %) had tuberculous peritonitis and 5 (16.8 %)tuberculous lymphadenitis. The diagnosis of abdominal TB was confirmed microbiologically in 5 (16 %) and histopathologically in 19 patients (60.8 %). The

  10. Ramos colaterais parietais e terminais da aorta abdominal em Myocastor coypus (nutria Terminal and parietal colateral branches of the abdominal aorta in Myocastor coypus (nutria

    Directory of Open Access Journals (Sweden)

    Paulete de Oliveira Vargas Culau

    2008-08-01

    , in order to irrigate part of the diaphragm and the cranial lateral abdominal walls. The abdominal aorta emitted, dorsally, the median sacral artery, cranially to its bifurcation into the common iliac arteries. These common iliac arteries, terminal branches of the aorta, originate the internal and external iliac arteries. The internal iliac artery was distributed along the pelvic cavity viscera. The external iliac artery emitted an umbilical artery and, before reaching the inguinal ring, emitted the deep circunflex iliac artery to 2/3 of the caudal lateral abdominal wall. The external iliac artery emitted the pudendoepigastric trunk, wich has originated the caudal epigastric artery, to the ventral abdominal wall, and the external pudendal artery, wich passed through the inguinal ring to irrigate the external genital. The direct parietal branches of the abdominal aorta were the lumbar arteries and the median sacral artery, while the phrenicoabdominal arteries, deep circunflex iliac and the caudal epigastric artery were indirect colateral parietal branches. The terminal branches of the abdominal aorta were the common iliac arteries with its branches, the internal and external iliac arteries.

  11. [Abdominal pregnancy care. Case report].

    Science.gov (United States)

    Morales Hernández, Sara; Díaz Velázquez, Mary Flor; Puello Tamara, Edgardo; Morales Hernández, Jorge; Basavilvazo Rodríguez, Maria Antonia; Cruz Cruz, Polita del Rocío; Hernández Valencia, Marcelino

    2008-10-01

    Abdominal pregnancies are the implantation of gestation in some of the abdominal structures. This kind of pregnancies represents sevenfold maternal death risk than tubarian ectopic pregnancies, and 90-fold death risk than normal ones. Previous cases have erroneously reported as abscess in Douglas punch, and frequently result in obitus or postnatal deaths. We report a case of a patient with 27 years old, and diagnosis of 25.2 weeks of pregnancy, prior placenta and anhidramnios, referred due to difficult in uterine contour delimitation, easy palpation of fetal parts, cephalic pole in left hypochondrious and presence of mass in hypogastria, no delimitations, pain with mobilization, no transvaginal bleed and fetal movements. Interruption of pregnancy is decided by virtue of severe oligohidramnios, retardation in fetal intrabdominal growth, and recurrent maternal abdominal pain. Surgical intervention was carried out for resolution of the obstetrical event, in which was found ectopic abdominal pregnancy with bed placental in right uterine horn that corresponded to a pregnancy of 30 weeks of gestation. Abdominal pregnancy is still a challenge for obstetrics due to its diagnosis and treatment. Early diagnosis is oriented to prevent an intrabdominal hemorrhage that is the main maternal cause of mortality.

  12. Cavity enhanced atomic magnetometry

    CERN Document Server

    Crepaz, Herbert; Dumke, Rainer

    2015-01-01

    Atom sensing based on Faraday rotation is an indispensable method for precision measurements, universally suitable for both hot and cold atomic systems. Here we demonstrate an all-optical magnetometer where the optical cell for Faraday rotation spectroscopy is augmented with a low finesse cavity. Unlike in previous experiments, where specifically designed multipass cells had been employed, our scheme allows to use conventional, spherical vapour cells. Spherical shaped cells have the advantage that they can be effectively coated inside with a spin relaxation suppressing layer providing long spin coherence times without addition of a buffer gas. Cavity enhancement shows in an increase in optical polarization rotation and sensitivity compared to single-pass configurations.

  13. Access cavity preparation.

    Science.gov (United States)

    Adams, N; Tomson, P L

    2014-03-01

    Each stage of root canal treatment should be carried out to the highest possible standard. The access cavity is arguably the most important technical stage, as subsequent preparation of the root canal(s) can be severely comprised if this is not well executed. Inadequate access can lead to canals being left untreated, poorly disinfected, difficult to shape and obturate, and may ultimately lead to the failure of the treatment. This paper highlights common features in root canal anatomy and outlines basic principles for locating root canals and producing a good access cavity. It also explores each phase of the preparation in detail and offers suggestions of instruments that have been specifically designed to overcome potential difficulties in the process. Good access design and preparation will result in an operative environment which will facilitate cleaning, shaping and obturation of the root canal system in order to maximise success.

  14. Colloquium: cavity optomechanics

    CERN Multimedia

    2011-01-01

    Monday 14 November 2011, 17:00 Ecole de Physique, Auditoire Stueckelberg Université de Genève Cavity optomechanics: controlling micro mechanical oscillators with laser light Prof. Tobias Kippenberg EPFL, Lausanne Laser light can be used to cool and to control trapped ions, atoms and molecules at the quantum level. This has lead to spectacular advances such as the most precise atomic clocks. An outstanding frontier is the control with lasers of nano- and micro-mechancial systems. Recent advances in cavity optomechanics have allowed such elementary control for the first time, enabling mechanical systems to be ground state cooled leading to readout with quantum limited sensitivity and permitting to explore new device concepts resulting from radiation pressure.  

  15. Cavity enhanced atomic magnetometry.

    Science.gov (United States)

    Crepaz, Herbert; Ley, Li Yuan; Dumke, Rainer

    2015-10-20

    Atom sensing based on Faraday rotation is an indispensable method for precision measurements, universally suitable for both hot and cold atomic systems. Here we demonstrate an all-optical magnetometer where the optical cell for Faraday rotation spectroscopy is augmented with a low finesse cavity. Unlike in previous experiments, where specifically designed multipass cells had been employed, our scheme allows to use conventional, spherical vapour cells. Spherical shaped cells have the advantage that they can be effectively coated inside with a spin relaxation suppressing layer providing long spin coherence times without addition of a buffer gas. Cavity enhancement shows in an increase in optical polarization rotation and sensitivity compared to single-pass configurations.

  16. Pulsatile blood flow in Abdominal Aortic Aneurysms

    Science.gov (United States)

    Salsac, Anne-Virginie; Lasheras, Juan C.; Singel, Soeren; Varga, Chris

    2001-11-01

    We discuss the results of combined in-vitro laboratory measurements and clinical observations aimed at determining the effect that the unsteady wall shear stresses and the pressure may have on the growth and eventual rupturing of an Abdominal Aortic Aneurysm (AAA), a permanent bulging-like dilatation occurring near the aortic bifurcation. In recent years, new non-invasive techniques, such as stenting, have been used to treat these AAAs. However, the development of these implants, aimed at stopping the growth of the aneurysm, has been hampered by the lack of understanding of the effect that the hemodynamic forces have on the growth mechanism. Since current in-vivo measuring techniques lack the precision and the necessary resolution, we have performed measurements of the pressure and shear stresses in laboratory models. The models of the AAA were obtained from high resolution three-dimensional CAT/SCANS performed in patients at early stages of the disease. Preliminary DPIV measurements show that the pulsatile blood flow discharging into the cavity of the aneurysm leads to large spikes of pressure and wall shear stresses near and around its distal end, indicating a possible correlation between the regions of high wall shear stresses and the observed location of the growth of the aneurysm.

  17. Cavity enhanced atomic magnetometry

    OpenAIRE

    Herbert Crepaz; Li Yuan Ley; Rainer Dumke

    2015-01-01

    Atom sensing based on Faraday rotation is an indispensable method for precision measurements, universally suitable for both hot and cold atomic systems. Here we demonstrate an all-optical magnetometer where the optical cell for Faraday rotation spectroscopy is augmented with a low finesse cavity. Unlike in previous experiments, where specifically designed multipass cells had been employed, our scheme allows to use conventional, spherical vapour cells. Spherical shaped cells have the advantage...

  18. Damage control surgery for severe thoracic and abdominal injuries

    Institute of Scientific and Technical Information of China (English)

    HUANG Xian-kai; ZHU Yu-jun; ZHANG Lian-yang

    2007-01-01

    Objective: To investigate the application of damage control surgery in treatment of patients with severe thoracic and abdominal injuries.Methods: A retrospective study was done on 37 patients with severe thoracic and abdominal injuries who underwent damage control surgery from January 2000 to October 2006 in our department. There were 8 cases of polytrauma ( with thoracic injury most commonly seen), 21 of polytrauma (with abdominal injury most commonly seen) and 8 of single abdominal trauma. Main organ damage included smashed hepatic injuries in 17 cases,posterior hepatic veins injuries in 8, pancreaticoduodenal injuries in 7, epidural or subdural hemorrhage in 4,contusion and laceration of brain in 5, severe lung and bronchus injuries in 4, pelvis and one smashed lower limb wound in 3 and pelvic fractures and retroperitoneal hemorrhage in 6. Injury severity score (ISS) was 28-45 scores (38.4 scores on average), abbreviated injury scale (ALS) ≥ 4.13. The patients underwent arteriography and arterial embolization including arteria hepatica embolization in 4 patients, arteria renalis embolization in 2 and pelvic arteria retroperitoneal embolization in 7. Once abbreviated operation finished, the patients were sent to ICU for resuscitation. Twenty-four cases underwent definitive operation within 48 hours after initial operation, 5 underwent definitive operation within 72 hours after initial operation, 2 cases underwent definitive operation postponed to 96 hours after initial operation for secondary operation to control bleeding because of abdominal cavity hemorrhea.Two cases underwent urgent laparotomy and decompression because of abdominal compartment syndrome and 2 cases underwent secondary operation because of intestinal fistulae (1 case of small intestinal fistula and 1 colon fistula) and gangrene of gallbladder.Results: A total of 28 patients survived, with a survival rate of 75.68%, and 9 died (4 died within 24 hours and 5 died 3-9 days after injury). The

  19. Late complications from abdominal wall surgery: report of three cases of mesh migration into hollow viscus; Complications tardives de la chirurgie parietale abdominale: a propos de trois cas de migration de prothese dans un organe creux

    Energy Technology Data Exchange (ETDEWEB)

    Szitkar, B.; Yzet, T.; Robert, B.; Lafaye-Boucher, N.; Verhaeghe, P. [CHU Nord Amiens, Service de Radiologie, 80 - Amiens (France); Auquier, M.A.; Remond, A. [CHU Sud Amiens, Service de Radiologie, 80 - Amiens (France)

    2010-01-15

    Laparoscopic mesh repair of ventral abdominal wall hernias is routinely performed. Mesh detachment and migration within the abdominal cavity is a late complication of this procedure. Symptoms are non-specific and imaging diagnosis is difficult to achieve because this complication is rare and overlooked. (authors)

  20. Cavity QED by the Numbers

    Science.gov (United States)

    Kimble, H. J.; Boca, A.; Boozer, A. D.; Bowen, W. P.; Buck, J. R.; Chou, C. W.; Duan, L.-M.; Kuzmich, A.; McKeever, J.

    2004-12-01

    Observations of cooling and trapping of N = 1,2,3,... atoms inside a small optical cavity are described. The atom-cavity system operates in a regime of strong coupling for which single photons are sufficient to saturate the atomic response. New theoretical protocols for the efficient engineering of multi-atom entanglement within the setting of cavity QED are described. By trapping a single atom within the cavity mode, a one-atom laser is experimentally realized in a regime of strong coupling. Beyond the setting of cavity QED, quantum correlations have been observed for photon pairs emitted from an atomic ensemble and with a programmable time offset.

  1. Abdominal wall hernia and pregnancy

    DEFF Research Database (Denmark)

    Jensen, K K; Henriksen, N A; Jorgensen, L N

    2015-01-01

    PURPOSE: There is no consensus as to the treatment strategy for abdominal wall hernias in fertile women. This study was undertaken to review the current literature on treatment of abdominal wall hernias in fertile women before or during pregnancy. METHODS: A literature search was undertaken in Pub......Med and Embase in combination with a cross-reference search of eligible papers. RESULTS: We included 31 papers of which 23 were case reports. In fertile women undergoing sutured or mesh repair, pain was described in a few patients during the last trimester of a subsequent pregnancy. Emergency surgery...... of incarcerated hernias in pregnant women, as well as combined hernia repair and cesarean section appears as safe procedures. No major complications were reported following hernia repair before or during pregnancy. The combined procedure of elective cesarean section and abdominal wall hernia repair was reported...

  2. Abdominal actinomycosis mimicking acute appendicitis.

    Science.gov (United States)

    Conrad, Robert Joseph; Riela, Steven; Patel, Ravi; Misra, Subhasis

    2015-01-01

    A 52-year-old Hispanic woman presented to the emergency department, reporting worsening sharp lower right quadrant abdominal pain for 3 days. CT of the abdomen and pelvis showed evidence of inflammation in the peritoneal soft tissues adjacent to an enlarged and thick-walled appendix, an appendicolith, no abscess formation and a slightly thickened caecum consistent with acute appendicitis. During laparoscopic appendectomy, the caecum was noted to be firm, raising suspicion of malignancy. Surgical oncology team was consulted and open laparotomy with right hemicolectomy was performed. Pathology reported that the ileocaecal mass was not a malignancy but was, rather, actinomycosis. The patient was discharged after 10 days of intravenous antibiotics in the hospital, with the diagnosis of abdominal actinomycosis. Although the original clinical and radiological findings in this case were highly suggestive of acute appendicitis, abdominal actinomycosis should be in the differential for right lower quadrant pain as it may be treated non-operatively.

  3. Crab Cavities for Linear Colliders

    Energy Technology Data Exchange (ETDEWEB)

    Burt, G.; Ambattu, P.; Carter, R.; Dexter, A.; Tahir, I.; /Cockcroft Inst. Accel. Sci. Tech. /Lancaster U.; Beard, C.; Dykes, M.; Goudket, P.; Kalinin, A.; Ma, L.; McIntosh, P.; /Daresbury; Shulte, D.; /CERN; Jones, Roger M.; /Cockcroft Inst. Accel. Sci. Tech. /Manchester U.; Bellantoni, L.; Chase, B.; Church, M.; Khabouline, T.; Latina, A.; /Fermilab; Adolphsen, C.; Li, Z.; Seryi, Andrei; /SLAC

    2011-11-08

    Crab cavities have been proposed for a wide number of accelerators and interest in crab cavities has recently increased after the successful operation of a pair of crab cavities in KEK-B. In particular crab cavities are required for both the ILC and CLIC linear colliders for bunch alignment. Consideration of bunch structure and size constraints favour a 3.9 GHz superconducting, multi-cell cavity as the solution for ILC, whilst bunch structure and beam-loading considerations suggest an X-band copper travelling wave structure for CLIC. These two cavity solutions are very different in design but share complex design issues. Phase stabilisation, beam loading, wakefields and mode damping are fundamental issues for these crab cavities. Requirements and potential design solutions will be discussed for both colliders.

  4. Crab cavities for linear colliders

    CERN Document Server

    Burt, G; Carter, R; Dexter, A; Tahir, I; Beard, C; Dykes, M; Goudket, P; Kalinin, A; Ma, L; McIntosh, P; Shulte, D; Jones, Roger M; Bellantoni, L; Chase, B; Church, M; Khabouline, T; Latina, A; Adolphsen, C; Li, Z; Seryi, Andrei; Xiao, L

    2008-01-01

    Crab cavities have been proposed for a wide number of accelerators and interest in crab cavities has recently increased after the successful operation of a pair of crab cavities in KEK-B. In particular crab cavities are required for both the ILC and CLIC linear colliders for bunch alignment. Consideration of bunch structure and size constraints favour a 3.9 GHz superconducting, multi-cell cavity as the solution for ILC, whilst bunch structure and beam-loading considerations suggest an X-band copper travelling wave structure for CLIC. These two cavity solutions are very different in design but share complex design issues. Phase stabilisation, beam loading, wakefields and mode damping are fundamental issues for these crab cavities. Requirements and potential design solutions will be discussed for both colliders.

  5. Blunt abdominal trauma in sports.

    Science.gov (United States)

    Rifat, Sami F; Gilvydis, Rimas P

    2003-04-01

    Abdominal injuries are rare in sports, but when they do occur it is important that the physician recognize the warning signs of potentially life-threatening injury to the liver, spleen, or hollow abdominal viscera. Though the sports medicine physician may not always provide definitive treatment of many of these conditions, he or she should be familiar with the preferred diagnostic modalities and latest treatment options. This information is not only essential to appropriately participate in treatment decisions, but is also important in order to make return-to-play determinations.

  6. [Gallstone ileus. Abdominal CT usefulness].

    Science.gov (United States)

    Sukkarieh, F; Brasseur, P; Bissen, L

    2004-06-01

    The authors report the case of a 93-year old woman referred to the emergency department and presenting with an intestinal obstruction. Abdominal CT reveals a biliary ileus caused by the migration and the impaction of a 3 cm gallstone in the small bowel. Surgical treatment by enterolithotomy was successful. In over 90% of cases, gallstone ileus is a complication of cholelithiasis and accounts for 25% of intestinal obstruction in patients over 65 years. To reduce morbidity and mortality, early diagnosis and prompt treatment are essential. Abdominal CT-scan is the gold standard technique.

  7. Management of Concomitant Cancer and Abdominal Aortic Aneurysm

    Directory of Open Access Journals (Sweden)

    Abdullah Jibawi

    2011-01-01

    Full Text Available Background. The coexistence of neoplasm and abdominal aortic aneurysm (AAA presents a real management challenge. This paper reviews the literature on the prevalence, diagnosis, and management dilemmas of concurrent visceral malignancy and abdominal aortic aneurysm. Method. The MEDLINE and HIGHWIRE databases (1966-present were searched. Papers detailing relevant data were assessed for quality and validity. All case series, review articles, and references of such articles were searched for additional relevant papers. Results. Current challenges in decision making, the effect of major body-cavity surgery on an untreated aneurysm, the effects of major vascular surgery on the treatment of malignancy, the use of EVAR (endovascular aortic aneurysm repair as a fairly low-risk procedure and its role in the management of malignancy, and the effect of other challenging issues such as the use of adjuvant therapy, and patients informed decision-making were reviewed and discussed. Conclusion. In synchronous malignancy and abdominal aortic aneurysm, the most life-threatening lesion should be addressed first. Endovascular aneurysm repair where possible, followed by malignancy resection, is becoming the preferred initial treatment choice in most centres.

  8. Diagnosis in acute abdominal pain and ongoing abdominal sepsis

    NARCIS (Netherlands)

    Kiewiet, J.J.S.

    2016-01-01

    Acute abdominal pain is a common reason for presentation at the emergency department. To establish a timely and adequate diagnosis, doctors use the pattern of complaints and physical examination as the basis for the evaluation of a patient. In this thesis we conducted a study that showed that surgeo

  9. Abdominal Complications of Typhoid Fever

    OpenAIRE

    Ketan Vagholkar; Jimmy Mirani; Urvashi Jain; Madhavan Iyengar; Rahul Kumar Chavan

    2015-01-01

    The natural history of typhoid fever poses both a diagnostic and a therapeutic challenge. Awareness of the clinical features of the primary presentation and of the complications are pivotal to early diagnosis. Typically, aggressive supportive care is all that is needed. However abdominal complications do occur and proper surgical care is required to lower morbidity and mortality.

  10. Chronic Abdominal Pain in Children

    NARCIS (Netherlands)

    C.F.M. Gijsbers (Carolien)

    2012-01-01

    textabstractRecurrent abdominal pain (RAP) was first defined in 1958 by Apley as “at least 3 bouts of pain, severe enough to affect activities, over a period of at least 3 months” (1). This was a landmark publication with great impact, showing, that emotional disturbances played a role in many patie

  11. Clinical management of abdominal trauma

    Institute of Scientific and Technical Information of China (English)

    FANG Guo-en; LUO Tian-hang; DU Cheng-hui; BI Jian-wei; XUE Xu-chao; WEI Guo; WENG Zhao-zhang; MA Li-ye; HUA Ji-de

    2008-01-01

    Objective: To improve the prognosis of patients with abdominal trauma. Methods: Between January 1993 and December 2005, 415 patients were enrolled in this research. The patients consisted of 347 males and 68 females with mean age of 36 years ranging from 3-82 years. All abdominal traumas consisted of closed traumas 360 cases, 86.7% and open traumas 55 cases, 13.3%. Results: Atotal of 407 cases 98.1% were fully recovered from trauma and the other 8 cases 1.9% died of multiple injuries. The mean injury severity score ISS of all patients was 22 while the mean ISS of the patients who died in hospital was 42. Postoperative complications were seen in 9 patients such as infection of incisional wounds 6 cases, pancreatic fistula 2 cases and intestinal fistula 1 case. All these postoperative complications were cured by the conservative treatment. Conclusion: Careful case history inquisition and physical examination are the basic methods to diagnose abdomi- nal trauma. Focused abdominal ultrasonography is always the initial imaging examination because it is non-invasive and can be performed repeatedly with high accuracy. The doctors should consider the severity of local injuries and the general status of patients during the assessment of abdominal trauma. The principle of treatment is to save lives at first, then to cure the injuries. Unnecessary laparotomy should be avoided to reduce additional surgical trauma.

  12. Ultrasound presentation of abdominal non-Hodgkin lymphomas in pediatric patients.

    Science.gov (United States)

    Brodzisz, Agnieszka; Woźniak, Magdalena Maria; Dudkiewicz, Ewa; Grabowski, Dominik; Stefaniak, Jolanta; Wieczorek, Andrzej Paweł; Kowalczyk, Jerzy

    2013-12-01

    Burkitt's lymphoma accounts for approximately 25% of lymphomas diagnosed in children of developmental age. The tumor is localized mainly in the intestine (usually in the ileocecal region), mesenteric lymph nodes and extraperitoneal space. The clinical symptoms are non-specific and include: abdominal pain, vomiting, gastrointestinal bleeding, and acute abdomen suggesting appendicitis or intestinal intussusception. On ultrasound examination, Burkitt's lymphoma may manifest itself in various ways, depending on the origin of the lesion. The aim of this paper was to review the ultrasound manifestation of abdominal Burkitt's lymphoma in children. The analysis included 15 pediatric patients with Burkitt's non-Hodgkin lymphoma in the abdominal cavity. The mean age of the patients was 9.5. Abdominal and gastrointestinal ultrasound examinations were conducted using a Siemens scanner with a convex transducer of 3.5-5 MHz and linear array transducer of L4 - 7.5 MHz. Ultrasound examinations conducted in the group of 15 patients revealed pathological masses localized in the gastric wall in 3 patients (20%), in the ileocecal region in 10 patients (67%) and a disseminated process in 2 patients (13%). In 12 patients with a diagnosed Burkitt's non-Hodgkin lymphoma in an extragastric localization, differences in the morphology of the lesions were observed. The clinical and ultrasound picture of abdominal Burkitt's lymphoma in children is variable. A careful ultrasound assessment of all abdominal organs conducted with the use of convex and linear probes increases the chances of establishing an adequate diagnosis.

  13. The Onset of Intra-Abdominal Adhesions During Closed-Abdomen Hyperthermic Intraperitoneal Chemotherapy.

    Science.gov (United States)

    Lotti, Marco; Giulii Capponi, Michela; Campanati, Luca; Poiasina, Elia; Ansaloni, Luca; Poletti, Eugenio; Frigerio, Luigi

    2016-12-01

    Hyperthermic intraperitoneal chemotherapy (HIPEC) is delivered after cytoreductive surgery (CRS) in selected patients with peritoneal carcinomatosis. The closed-abdomen technique, preferred by many centers, prevents heat loss and drug spillage, but does not warrant homogeneous distribution of the perfusion fluid (PF). The hypothesized formation of intra-abdominal adhesions during the closed-abdomen perfusion period has never been described. From March 2014 to April 2016, 10 consecutive patients with peritoneal carcinomatosis, selected for CRS, underwent the Laparoscopy-Enhanced HIPEC technique to explore the abdominal cavity during the perfusion. The aim of the study was to investigate the incidence and the extent of intra-abdominal adhesions that are formed after CRS during the perfusion period of closed-abdomen HIPEC. During the perfusion, adhesions developed in 70% of the patients. Adhesions developed mainly in the period between the closure of the abdomen and the subsequent filling of the abdomen with the PF. After their first division, during the following perfusion period, adhesions between the bowel and the abdominal wall reformed in 3 patients (30%). Intra-abdominal adhesions are frequently formed during closed-abdomen HIPEC and can hamper the adequate circulation of the PF. The Laparoscopy-Enhanced technique enables the early detection and the division of any intra-abdominal adhesions.

  14. ISR RF cavities

    CERN Multimedia

    1983-01-01

    In each ISR ring the radiofrequency cavities were installed in one 9 m long straight section. The RF system of the ISR had the main purpose to stack buckets of particles (most of the time protons)coming from the CPS and also to accelerate the stacked beam. The installed RF power per ring was 18 kW giving a peak accelerating voltage of 20 kV. The system had a very fine regulation feature allowing to lower the voltage down to 75 V in a smooth and well controlled fashion.

  15. Cavity Optomechanical Magnetometer

    CERN Document Server

    Forstner, S; Knittel, J; van Ooijen, E D; Swaim, J D; Harris, G I; Szorkovszky, A; Bowen, W P; Rubinsztein-Dunlop, H

    2011-01-01

    A cavity optomechanical magnetometer is demonstrated where the magnetic field induced expansion of a magnetostrictive material is transduced onto the physical structure of a highly compliant optical microresonator. The resulting motion is read out optically with ultra-high sensitivity. Detecting the magnetostrictive deformation of Terfenol-D with a toroidal whispering gallery mode (TWGM) resonator a peak sensitivity of 400 nT/Hz^.5 was achieved with theoretical modelling predicting that sensitivities of up to 500 fT/Hz^.5 may be possible. This chip-based magnetometer combines high-sensitivity and large dynamic range with small size and room temperature operation.

  16. Cavity optomechanical magnetometer.

    Science.gov (United States)

    Forstner, S; Prams, S; Knittel, J; van Ooijen, E D; Swaim, J D; Harris, G I; Szorkovszky, A; Bowen, W P; Rubinsztein-Dunlop, H

    2012-03-23

    A cavity optomechanical magnetometer is demonstrated. The magnetic-field-induced expansion of a magnetostrictive material is resonantly transduced onto the physical structure of a highly compliant optical microresonator and read out optically with ultrahigh sensitivity. A peak magnetic field sensitivity of 400  nT  Hz(-1/2) is achieved, with theoretical modeling predicting the possibility of sensitivities below 1  pT  Hz(-1/2). This chip-based magnetometer combines high sensitivity and large dynamic range with small size and room temperature operation.

  17. Preoperative steroid in abdominal wall reconstruction

    DEFF Research Database (Denmark)

    Jensen, Kristian Kiim; Brøndum, Tina Lee; Belhage, Bo

    2016-01-01

    INTRODUCTION: Preoperative administration of high-dose glucocorticoid leads to improved recovery and decreased length of stay after abdominal surgery. Even so, studies on administration of glucocorticoids for patients undergoing abdominal wall reconstruction (AWR) for giant ventral hernia repair ...

  18. Emergency abdominal surgery in Zaria, Nigeria

    African Journals Online (AJOL)

    Abdominal surgical emergencies constitute a significant portion of a surgeon's ... causes of abdominal emergencies vary from region to region, and even within the ..... Previous studies from our sub-region have consistently shown strangulated ...

  19. Preoperative steroid in abdominal wall reconstruction

    DEFF Research Database (Denmark)

    Jensen, Kristian Kiim; Brøndum, Tina Lee; Belhage, Bo;

    2016-01-01

    INTRODUCTION: Preoperative administration of high-dose glucocorticoid leads to improved recovery and decreased length of stay after abdominal surgery. Even so, studies on administration of glucocorticoids for patients undergoing abdominal wall reconstruction (AWR) for giant ventral hernia repair ...

  20. Abdominal aortic aneurysm repair - open - discharge

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/patientinstructions/000240.htm Abdominal aortic aneurysm repair - open - discharge To use the sharing features ... References Orandi BJ, Black JH. Open repair of abdominal aortic aneurysms. In: Cameron JL, Cameron AM, eds. Current Surgical ...

  1. Primary mesenteric extraskeletal osteosarcoma in the pelvic cavity

    Energy Technology Data Exchange (ETDEWEB)

    Choudur, H.N.; Munk, P.L.; Ryan, A.G.M.J. [Vancouver General Hospital, Department of Radiology, Vancouver, BC (Canada); Nielson, T.O. [Vancouver General Hospital, Department of Pathology, Vancouver, BC (Canada)

    2005-10-01

    A middle-aged man was being investigated for constipation. Abdominal radiographs incidentally revealed a large, densely calcified, rounded mass within the pelvic cavity. A CT scan was performed followed by surgical excision with a differential diagnosis of calcified hematoma and an enlarged calcified lymph nodal mass. Histopathological investigation revealed a primary mesenteric extraskeletal osteosarcoma. To the best of our knowledge, a primary extraskeletal osteosarcoma arising from the mesentery has not been described previously in the English literature. The radiological features and differential diagnosis are discussed. (orig.)

  2. Abdominal Compartment Syndrome: pathophysiology and definitions

    OpenAIRE

    Cheatham Michael L

    2009-01-01

    Abstract "Intra-abdominal hypertension", the presence of elevated intra-abdominal pressure, and "abdominal compartment syndrome", the development of pressure-induced organ-dysfunction and failure, have been increasingly recognized over the past decade as causes of significant morbidity and mortality among critically ill surgical and medical patients. Elevated intra-abdominal pressure can cause significant impairment of cardiac, pulmonary, renal, gastrointestinal, hepatic, and central nervous ...

  3. Intrauterine Contraceptive Device Migration Presenting as Abdominal Wall Swelling: A Case Report

    Directory of Open Access Journals (Sweden)

    Imtiaz Wani

    2011-01-01

    Full Text Available A number of complications are reported with the use of intrauterine contraceptive devices. These may pursue asymptomatic course or present as an acute abdomen after migration into peritoneal cavity. The authors here are reporting an abdominal wall swelling caused by transuterine migration of a copper intrauterine contraceptive device in a 28-year-old female. An open approach was used, and impacted foreign body was retrieved.

  4. A Large Intra-Abdominal Hiatal Hernia as a Rare Cause of Dyspnea

    Directory of Open Access Journals (Sweden)

    Cem Sahin

    2015-01-01

    Full Text Available Giant hiatal hernias, generally seen at advanced ages, can rarely cause cardiac symptoms such as dyspnea and chest pain. Here, we aimed to present a case with a large hiatal hernia that largely protruded to intrathoracic cavity and caused dyspnea, particularly at postprandial period, by compressing the left atrium and right pulmonary vein. We considered presenting this case as large hiatal hernia is a rare, intra-abdominal cause of dyspnea.

  5. Superman play and pediatric blunt abdominal trauma.

    Science.gov (United States)

    Machi, J M; Gyuro, J; Losek, J D

    1996-01-01

    Two pediatric patients with life-threatening intra-abdominal injuries associated with Superman play are presented. The cases illustrate the importance of knowing the mechanism of injury in the assessment of children with blunt abdominal trauma. The diagnostic value of liver enzymes and the controversies surrounding the radiographic assessment of pediatric blunt abdominal trauma are presented.

  6. Abdominal migraine in childhood: a review

    OpenAIRE

    Scicchitano B; Humphreys G; Mitton SG; Jaiganesh T

    2014-01-01

    Beatrice Scicchitano,1 Gareth Humphreys,1 Sally G Mitton,2 Thiagarajan Jaiganesh1 1Children's Emergency Department, 2Department of Paediatric Gastroenterology, St Georges Hospital, St Georges Healthcare NHS Trust, Tooting, London, United Kingdom Abstract: The childhood condition of abdominal migraine has been described under many different synonyms, including "abdominal epilepsy", "recurrent abdominal pain", "cyclical vomiting syndrome&...

  7. Applications of cavity optomechanics

    Science.gov (United States)

    Metcalfe, Michael

    2014-09-01

    "Cavity-optomechanics" aims to study the quantum properties of mechanical systems. A common strategy implemented in order to achieve this goal couples a high finesse photonic cavity to a high quality factor mechanical resonator. Then, using feedback forces such as radiation pressure, one can cool the mechanical mode of interest into the quantum ground state and create non-classical states of mechanical motion. On the path towards achieving these goals, many near-term applications of this field have emerged. After briefly introducing optomechanical systems and describing the current state-of-the-art experimental results, this article summarizes some of the more exciting practical applications such as ultra-sensitive, high bandwidth accelerometers and force sensors, low phase noise x-band integrated microwave oscillators and optical signal processing such as optical delay-lines, wavelength converters, and tunable optical filters. In this rapidly evolving field, new applications are emerging at a fast pace, but this article concentrates on the aforementioned lab-based applications as these are the most promising avenues for near-term real-world applications. New basic science applications are also becoming apparent such as the generation of squeezed light, testing gravitational theories and for providing a link between disparate quantum systems.

  8. Oral cavity eumycetoma.

    Science.gov (United States)

    Nai, Gisele Alborghetti; Stuani, Maria Luiza de Toledo; Stuani, Luís Antonio Sasso

    2011-01-01

    Mycetoma is a pathological process in which eumycotic (fungal) or actinomycotic causative agents from exogenous source produce grains. It is a localized chronic and deforming infectious disease of subcutaneous tissue, skin and bones. We report the first case of eumycetoma of the oral cavity in world literature. A 43-year-old male patient, complaining of swelling and fistula in the hard palate. On examination, swelling of the anterior and middle hard palate, with fistula draining a dark liquid was observed. The panoramic radiograph showed extensive radiolucent area involving the region of teeth 21-26 and the computerized tomography showed communication with the nasal cavity, suggesting the diagnosis of periapical cyst. Surgery was performed to remove the lesion. Histopathological examination revealed purulent material with characteristic grain. Gram staining for bacteria was negative and Grocott-Gomori staining for the detection of fungi was positive, concluding the diagnosis of eumycetoma. The patient was treated with ketoconazole for nine months, and was considered cured at the end of treatment. Histopathological examination, using histochemical staining, and direct microscopic grains examination can provide the distinction between eumycetoma and actinomycetoma accurately.

  9. Oral cavity eumycetoma

    Directory of Open Access Journals (Sweden)

    Gisele Alborghetti Nai

    2011-06-01

    Full Text Available Mycetoma is a pathological process in which eumycotic (fungal or actinomycotic causative agents from exogenous source produce grains. It is a localized chronic and deforming infectious disease of subcutaneous tissue, skin and bones. We report the first case of eumycetoma of the oral cavity in world literature. CASE REPORT: A 43-year-old male patient, complaining of swelling and fistula in the hard palate. On examination, swelling of the anterior and middle hard palate, with fistula draining a dark liquid was observed. The panoramic radiograph showed extensive radiolucent area involving the region of teeth 21-26 and the computerized tomography showed communication with the nasal cavity, suggesting the diagnosis of periapical cyst. Surgery was performed to remove the lesion. Histopathological examination revealed purulent material with characteristic grain. Gram staining for bacteria was negative and Grocott-Gomori staining for the detection of fungi was positive, concluding the diagnosis of eumycetoma. The patient was treated with ketoconazole for nine months, and was considered cured at the end of treatment. CONCLUSION: Histopathological examination, using histochemical staining, and direct microscopic grains examination can provide the distinction between eumycetoma and actinomycetoma accurately.

  10. Applications of cavity optomechanics

    Energy Technology Data Exchange (ETDEWEB)

    Metcalfe, Michael [Booz Allen Hamilton, 3811 Fairfax Drive, Arlington, Virginia 22203 (United States)

    2014-09-15

    Cavity-optomechanics” aims to study the quantum properties of mechanical systems. A common strategy implemented in order to achieve this goal couples a high finesse photonic cavity to a high quality factor mechanical resonator. Then, using feedback forces such as radiation pressure, one can cool the mechanical mode of interest into the quantum ground state and create non-classical states of mechanical motion. On the path towards achieving these goals, many near-term applications of this field have emerged. After briefly introducing optomechanical systems and describing the current state-of-the-art experimental results, this article summarizes some of the more exciting practical applications such as ultra-sensitive, high bandwidth accelerometers and force sensors, low phase noise x-band integrated microwave oscillators and optical signal processing such as optical delay-lines, wavelength converters, and tunable optical filters. In this rapidly evolving field, new applications are emerging at a fast pace, but this article concentrates on the aforementioned lab-based applications as these are the most promising avenues for near-term real-world applications. New basic science applications are also becoming apparent such as the generation of squeezed light, testing gravitational theories and for providing a link between disparate quantum systems.

  11. Cavity coalescence in superplastic deformation

    Energy Technology Data Exchange (ETDEWEB)

    Stowell, M.J.; Livesey, D.W.; Ridley, N.

    1984-01-01

    An analysis of the probability distribution function of particles randomly dispersed in a solid has been applied to cavitation during superplastic deformation and a method of predicting cavity coalescence developed. Cavity size distribution data were obtained from two microduplex nickel-silver alloys deformed superplastically to various extents at elevated temperature, and compared to theoretical predictions. Excellent agreement occurred for small void sizes but the model underestimated the number of voids in the largest size groups. It is argued that the discrepancy results from a combination of effects due to non-random cavity distributions and to enhanced growth rates and incomplete spheroidization of the largest cavities.

  12. JLEIC SRF cavity RF Design

    Energy Technology Data Exchange (ETDEWEB)

    Wang, Shaoheng [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Guo, Jiquan [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Wang, Haipeng [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Rimmer, Robert A. [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

    2016-05-01

    The initial design of a low higher order modes (HOM) impedance superconducting RF (SRF) cavity is presented in this paper. The design of this SRF cavity is for the proposed Jefferson Lab Electron Ion Collider (JLEIC). The electron ring of JLEIC will operate with electrons of 3 to 10 GeV energy. The ion ring of JLEIC will operate with protons of up to 100 GeV energy. The bunch lengths in both rings are ~12 mm (RMS). In order to maintain the short bunch length in the ion ring, SRF cavities are adopted to provide large enough gradient. In the first phase of JLEIC, the PEP II RF cavities will be reused in the electron ring to lower the initial cost. The frequency of the SRF cavities is chosen to be the second harmonic of PEP II cavities, 952.6 MHz. In the second phase of JLEIC, the same frequency SRF cavities may replace the normal conducting PEP II cavities to achieve higher luminosity at high energy. At low energies, the synchro-tron radiation damping effect is quite weak, to avoid the coupled bunch instability caused by the intense closely-spaced electron bunches, low HOM impedance of the SRF cavities combined with longitudinal feedback sys-tem will be necessary.

  13. Nanofriction in Cavity Quantum Electrodynamics.

    Science.gov (United States)

    Fogarty, T; Cormick, C; Landa, H; Stojanović, Vladimir M; Demler, E; Morigi, Giovanna

    2015-12-01

    The dynamics of cold trapped ions in a high-finesse resonator results from the interplay between the long-range Coulomb repulsion and the cavity-induced interactions. The latter are due to multiple scatterings of laser photons inside the cavity and become relevant when the laser pump is sufficiently strong to overcome photon decay. We study the stationary states of ions coupled with a mode of a standing-wave cavity as a function of the cavity and laser parameters, when the typical length scales of the two self-organizing processes, Coulomb crystallization and photon-mediated interactions, are incommensurate. The dynamics are frustrated and in specific limiting cases can be cast in terms of the Frenkel-Kontorova model, which reproduces features of friction in one dimension. We numerically recover the sliding and pinned phases. For strong cavity nonlinearities, they are in general separated by bistable regions where superlubric and stick-slip dynamics coexist. The cavity, moreover, acts as a thermal reservoir and can cool the chain vibrations to temperatures controlled by the cavity parameters and by the ions' phase. These features are imprinted in the radiation emitted by the cavity, which is readily measurable in state-of-the-art setups of cavity quantum electrodynamics.

  14. Ventral hernia repair in patients with abdominal loss of domain: an observational study of one institution's experience.

    Science.gov (United States)

    Azar, F K; Crawford, T C; Poruk, K E; Farrow, N; Cornell, P; Nadra, O; Azoury, S C; Soares, K C; Cooney, C M; Eckhauser, F E

    2017-04-01

    Abdominal wall hernias are a common problem. The success of abdominal wall reconstruction decreases with increasing hernia size. This study summarizes the outcomes of one surgeon's experience using a "sandwich" technique for hernia repair in patients with loss of abdominal domain. We reviewed our ventral hernia repair (VHR) experience from 2008 to 2015 among patients with loss of domain, as defined by a hernia defect greater than 300 cm(2). The percent of herniation through the defect, defined by a hernia sac-to-abdominal cavity volume ratio, was measured on preoperative CT scans by four independent reviewers and averaged. Outcomes were compared among those with giant ventral hernias (hernia sac-to-abdominal cavity volume >30%) and those with smaller defect ratios. Over the study period, 21 patients underwent VHR. In 17 patients (81%), a "sandwich" technique was utilized. Ten patients had hernia sac-to-abdominal cavity defects less than 30%, and 11 had defects greater than 30%. Preoperative characteristics were similar in both groups with the exception of a higher ASA score in those with giant ventral hernias and more Ventral Hernia Working Group Grade 3 hernias in those without giant ventral hernias. Postoperative outcomes were similar in both groups. There were no mortalities. There were two recurrences (18%) in the giant VHR group and none in the smaller defect group (p = 0.16). Surgical site occurrences were noted in 48% of patients and did not differ between giant and non-giant VHR groups (50 vs 45%, p = 0.84). Average postoperative length of stay was significantly longer in the giant VHR group (31 vs. 17 days, p = 0.03). Our results suggest that the "sandwich" technique for VHR is a safe and durable method to restore abdominal wall integrity in those with LOD, even in patients with giant ventral hernias.

  15. Intra-Abdominal Actinomycosis Mimicking Malignant Abdominal Disease

    Directory of Open Access Journals (Sweden)

    Ali Ridha

    2017-01-01

    Full Text Available Abdominal actinomycosis is a rare infectious disease, caused by gram positive anaerobic bacteria, that may appear as an abdominal mass and/or abscess (Wagenlehner et al. 2003. This paper presents an unusual case of a hemodynamically stable 80-year-old man who presented to the emergency department with 4 weeks of worsening abdominal pain and swelling. He also complains of a 20-bound weight loss in 2 months. A large tender palpable mass in the right upper quadrant was noted on physical exam. Laboratory studies showed a normal white blood cell count, slightly decreased hemoglobin and hematocrit, and mildly elevated total bilirubin and alkaline phosphatase. A CT with contrast was done and showed a liver mass. Radiology and general surgery suspected malignancy and recommended CT guided biopsy. The sample revealed abundant neutrophils and gram positive rods. Cytology was negative for malignancy and cultures eventually grew actinomyces. High dose IV penicillin therapy was given for 4 weeks and with appropriate response transitioned to oral antibiotic for 9 months with complete resolution of symptoms.

  16. Intra-Abdominal Actinomycosis Mimicking Malignant Abdominal Disease

    Science.gov (United States)

    Oguejiofor, Njideka; Al-Abayechi, Sarah; Njoku, Emmanuel

    2017-01-01

    Abdominal actinomycosis is a rare infectious disease, caused by gram positive anaerobic bacteria, that may appear as an abdominal mass and/or abscess (Wagenlehner et al. 2003). This paper presents an unusual case of a hemodynamically stable 80-year-old man who presented to the emergency department with 4 weeks of worsening abdominal pain and swelling. He also complains of a 20-bound weight loss in 2 months. A large tender palpable mass in the right upper quadrant was noted on physical exam. Laboratory studies showed a normal white blood cell count, slightly decreased hemoglobin and hematocrit, and mildly elevated total bilirubin and alkaline phosphatase. A CT with contrast was done and showed a liver mass. Radiology and general surgery suspected malignancy and recommended CT guided biopsy. The sample revealed abundant neutrophils and gram positive rods. Cytology was negative for malignancy and cultures eventually grew actinomyces. High dose IV penicillin therapy was given for 4 weeks and with appropriate response transitioned to oral antibiotic for 9 months with complete resolution of symptoms. PMID:28299215

  17. Serum Protein and RAAS System Hormone Level Changes before and after the Concentrated Ascites into Abdominal Cavity%腹水浓缩回输腹腔前后血清蛋白及RAAS系统激素水平变化研究

    Institute of Scientific and Technical Information of China (English)

    刘水清; 杨新魁; 谢宏民

    2016-01-01

    目的:探讨腹水超滤浓缩回输对肝硬化顽固性腹水、肝癌腹水及其他腹腔恶性腹水患者的血浆白蛋白和RAAS系统激素水平的影响。方法:选取2014年3月-2016年2月本院符合标准的230例腹水患者为研究对象,将其随机分为两组。治疗组120患者进行腹水超滤浓缩回输治疗,对照组110患者进行常规放腹水、补充白蛋白治疗。检测治疗前后两组患者的腹水症状、血浆白蛋白和RAAS水平并进行比较。结果:与治疗前比较,两组患者治疗后血清总蛋白及清蛋白水平均有所升高,治疗组升高更加明显,差异均有统计学意义(P<0.05)。治疗后患者RAAS系统激素水平均呈不同程度下降,其中治疗组肾素、血管紧张素Ⅱ及醛固酮水平较治疗前均下降(P<0.05),对照组仅血管紧张素Ⅱ及醛固酮较治疗前下降(P<0.05);治疗后两组患者的RAAS激素水平比较,差异均有统计学意义(P<0.05)。治疗后,治疗组患者体重下降、腹围减少、24 h尿量增加更加明显,总有效率为83.33%,与对照组比较差异均有统计学意义(P<0.05)。结论:腹水超滤浓缩回输治疗肝硬化顽固性腹水、肝癌腹水及其他腹腔恶性腹水效果较好,可能与其升高白蛋白和降低RAAS系统激素水平作用有关。%Objective:To study the serum albumin and the RAAS system hormone levels in patients with ascites of cirrhosis,liver ascites or other abdominal malignant ascites and received autologous ultrafiltration concentrated ascites transfusion.Method:The 230 patients with ascites conformed the standard from March 2014 to February 2016 were randomly divided into the treatment group and the control group.The treatment group of 120 patients with ascites ultrafiltration concentration feedback treatment,the control group of 110 patients were given regular ascites,albumin supplementation therapy.The symptoms,the plasma albumin and

  18. The Diagnostic Value of Intra-abdominal Pressure in Patients with Blunt Acute Abdominal Trauma

    Directory of Open Access Journals (Sweden)

    Huseyin Narci

    2012-06-01

    Full Text Available Purpose:The objective of this study was to determine the diagnostic value of intra-abdominal pressure measurement in blunt abdominal trauma patients. Method: A prospective study was performed in 49 patients with blunt trauma in our university hospital for 1 years. Patients were randomly into two groups as intra-abdominal trauma (n=28 and extraabdominal trauma (n=21 groups. Intra-abdominal pressures was measured an classified as normal (10 cm H2O or less, elevated (more than 10 cm H2O determined indirectly. Results: No significant differences were found between abdominal trauma and extra-abdominal trauma groups from the point of intra-abdominal pressure (IAP. One the other hand, in abdominal trauma group; significant differences were observed between operated patients. Intra-abdominal bleeding was found in 10 patients and all of them elevated IAP values (exceeding 16 cm H2O. For determining the intra-abdominal injury, IAP had a sensitivity of 93%, specificity 38% in patients. Conclusion: IAP exceeding 16 cm H2O with blunt abdominal trauma patients abdominal trauma can be detected. It is thought that IAP, indirect monitoring of abdominal trauma patients is a reproducible, scientific guide and simple method.To determine the efficacy of the measurement of intra-abdominal pressure in blunt abdominal trauma patients, further studies should be done. [Cukurova Med J 2012; 37(3.000: 157-161

  19. Acupuncture Treatment of Abdominal Pain

    Institute of Scientific and Technical Information of China (English)

    胡金生

    2002-01-01

    @@ Case History Mr. Li, a university student aged 23 years, paid his first visit on July 16, 2001, with the chief complaint of abdominal pain for one day. The patient stated that one day before when it happened to be the weekend, he got abdominal pain after supper, which went worse gradually and caused him to roll all over in bed. The pain was slightly alleviated half an hour later after he had taken some pain killers. Upon inquiry, the patient said that because of their newly graduation from the university, he and his classmates were so excited that they went to have a sumptuous lunch with alcoholic drinks. And in the evening he ate again a delicious supper cooked for him by his mother, after which he continued to have some fruit and dessert.

  20. Shock induced cavity collapse

    Science.gov (United States)

    Skidmore, Jonathan; Doyle, Hugo; Tully, Brett; Betney, Matthew; Foster, Peta; Ringrose, Tim; Ramasamy, Rohan; Parkin, James; Edwards, Tom; Hawker, Nicholas

    2016-10-01

    Results from the experimental investigation of cavity collapse driven by a strong planar shock (>6km/s) are presented. Data from high speed framing cameras, laser backlit diagnostics and time-resolved pyromety are used to validate the results of hydrodynamic front-tracking simulations. As a code validation exercise, a 2-stage light gas gun was used to accelerate a 1g Polycarbonate projectile to velocities exceeding 6km/s; impact with a PMMA target containing a gas filled void results in the formation of a strong shockwave with pressures exceeding 1Mbar. The subsequent phenomena associated with the collapse of the void and excitation of the inert gas fill are recorded and compared to simulated data. Variation of the mass density and atomic number of the gas fill is used to alter the plasma parameters furthering the extent of the code validation.

  1. A Scanning Cavity Microscope

    CERN Document Server

    Mader, Matthias; Hänsch, Theodor W; Hunger, David

    2014-01-01

    Imaging of the optical properties of individual nanosystems beyond fluorescence can provide a wealth of information. However, the minute signals for absorption and dispersion are challenging to observe, and only specialized techniques requiring sophisticated noise rejection are available. Here we use signal enhancement in a scanning optical microcavity to demonstrate ultra-sensitive imaging. Harnessing multiple interactions of probe light with a sample within an optical resonator, we achieve a 1700-fold signal enhancement compared to diffraction-limited microscopy. We demonstrate quantitative imaging of the extinction cross section of gold nanoparticles with a sensitivity below 1 nm2, we show a method to improve spatial resolution potentially below the diffraction limit by using higher order cavity modes, and we present measurements of the birefringence and extinction contrast of gold nanorods. The demonstrated simultaneous enhancement of absorptive and dispersive signals promises intriguing potential for opt...

  2. Antibiotic prophylaxis for abdominal hysterectomy.

    Science.gov (United States)

    Mele, G; Loizzi, P; Greco, P; Gargano, G; Varcaccio Garofalo, G; Belsanti, A

    1988-01-01

    Three different regimens of antibiotic treatment have been employed in order to evaluate their efficacy as a profilaxis for abdominal hysterectomy. Two short term administrations (Cephtriaxone and Cephamandole plus Tobramycine) and a conventional full dose treatment (Cephazoline) have been compared over a group of homogeneous patients. No significant differences, except a reduction in postoperative time spent in hospital, have been found among the groups. A reduction in urinary tract infection has also been reported with a single-dose antibiotic prophylaxis.

  3. Frequency Tuning for a DQW Crab Cavity

    CERN Document Server

    Verdú-Andrés, Silvia; Ben-Zvi, Ilan; Calaga, Rama; Capatina, Ofelia; Leuxe, Raphael; Skaritka, John; Wu, Qiong; Xiao, Binping; Zanoni, Carlo

    2016-01-01

    The nominal operating frequency for the HL-LHC crab cavities is 400.79 MHz within a bandwidth of ±60kHz. Attaining the required cavity tune implies a good understanding of all the processes that influence the cavity frequency from the moment when the cavity parts are being fabricated until the cavity is installed and under operation. Different tuning options will be available for the DQW crab cavity of LHC. This paper details the different steps in the cavity fabrication and preparation that may introduce a shift in the cavity frequency and introduces the different tuning methods foreseen to bring the cavity frequency to meet the specifications.

  4. Abdominal wound closure: current perspectives

    Directory of Open Access Journals (Sweden)

    Williams ZF

    2015-12-01

    Full Text Available Zachary F Williams, William W Hope Department of Surgery, South East Area Health Education Center, New Hanover Regional Medical Center, Wilmington, NC, USA Abstract: This review examines both early and late wound complications following laparotomy closure, with particular emphasis on technical aspects that reduce hernia formation. Abdominal fascial closure is an area of considerable variation within the field of general surgery. The formation of hernias following abdominal wall incisions continues to be a challenging problem. Ventral hernia repairs are among the most common surgeries performed by general surgeons, and despite many technical advances in the field, incisional hernia rates remain high. Much attention and research has been directed to the surgical management of hernias. Less focus has been placed on prevention of hernia formation despite its obvious importance. This review examines the effects of factors such as the type of incision, suture type and size, closure method, patient risk factors, and the use of prophylactic mesh. Keywords: incisional, abdominal, hernia, prevention, wound closure techniques 

  5. Appendicitis following blunt abdominal trauma.

    Science.gov (United States)

    Cobb, Travis

    2017-09-01

    Appendicitis is a frequently encountered surgical problem in the Emergency Department (ED). Appendicitis typically results from obstruction of the appendiceal lumen, although trauma has been reported as an infrequent cause of acute appendicitis. Intestinal injury and hollow viscus injury following blunt abdominal trauma are well reported in the literature but traumatic appendicitis is much less common. The pathophysiology is uncertain but likely results from several mechanisms, either in isolation or combination. These include direct compression/crush injury, shearing injury, or from indirect obstruction of the appendiceal lumen by an ileocecal hematoma or traumatic impaction of stool into the appendix. Presentation typically mirrors that of non-traumatic appendicitis with nausea, anorexia, fever, and right lower quadrant abdominal tenderness and/or peritonitis. Evaluation for traumatic appendicitis requires a careful history and physical exam. Imaging with ultrasound or computed tomography is recommended if the history and physical do not reveal an acute surgical indication. Treatment includes intravenous antibiotics and surgical consultation for appendectomy. This case highlights a patient who developed acute appendicitis following blunt trauma to the abdomen sustained during a motor vehicle accident. Appendicitis must be considered as part of the differential diagnosis in any patient who presents to the ED with abdominal pain, including those whose pain begins after sustaining blunt trauma to the abdomen. Because appendicitis following trauma is uncommon, timely diagnosis requires a high index of suspicion. Copyright © 2017 Elsevier Inc. All rights reserved.

  6. Quantum entanglement purification in cavities

    CERN Document Server

    Romero, J L; Saavedra, C; Retamal, J C

    2002-01-01

    A physical implementation of an entanglement purification protocol is studied using a cavity quantum electrodynamic based proposal, where, the quantum information is stored in quantum field sates inside cavities. Also a procedure is given for quantifying the degree of entanglement between quantum fields. (Author)

  7. Quench studies of ILC cavities

    Energy Technology Data Exchange (ETDEWEB)

    Eremeev, Grigory; Geng, Rongli; Palczewski, Ari; Dai, Jin

    2011-07-01

    Quench limits accelerating gradient in SRF cavities to a gradient lower than theoretically expected for superconducting niobium. Identification of the quenching site with thermometry and OST, optical inspection, and replica of the culprit is an ongoing effort at Jefferson Lab aimed at better understanding of this limiting phenomenon. In this contribution we present our finding with several SRF cavities that were limited by quench.

  8. Superconducting cavity model for LEP

    CERN Multimedia

    1979-01-01

    A superconducting cavity model is being prepared for testing in a vertical cryostat.At the top of the assembly jig is H.Preis while A.Scharding adjusts some diagnostic equipment to the cavity. See also photo 7912501X.

  9. LEP radio-frequency cavity

    CERN Multimedia

    1991-01-01

    One of the copper radio-frequency accelerating cavities installed for the first phase of LEP (1989-1995). Bunches of electrons and positrons circulated in LEP in opposite directions and were accelerated in eight different sets of 16 cavities (situated on either side of the four experiments), gaining 400 million volts of accelerating power per turn.

  10. Single and Coupled Nanobeam Cavities

    DEFF Research Database (Denmark)

    Ivinskaya, Aliaksandra; Lavrinenko, Andrei; Shyroki, Dzmitry M.

    2013-01-01

    for analysis and design of photonic crystal devices, such as 2D ring resonators for filters, single and coupled nanobeam cavities, birefringence in photonic crystal cavities, threshold analysis in photonic crystal lasers, gap solitons in photonic crystals, novel photonic atolls, dynamic characteristics...

  11. Urgent Abdominal Re-Explorations

    Directory of Open Access Journals (Sweden)

    Peskersoy Mustafa

    2006-04-01

    Full Text Available Abstract Background Treatment of a number of complications that occur after abdominal surgeries may require that Urgent Abdominal Re-explorations (UARs, the life-saving and obligatory operations, are performed. The objectives of this study were to evaluate the reasons for performing UARs, outcomes of relaparotomies (RLs and factors that affect mortality. Methods Demographic characteristics; initial diagnoses; information from and complications of the first surgery received; durations and outcomes of UAR(s performed in patients who received early RLs because of complicated abdominal surgeries in our clinic between 01.01.2000 and 31.12.2004 were investigated retrospectively. Statistical analyses were done using the chi-square and Fisher exact tests. Results Early UAR was performed in 81 out of 4410 cases (1.8%. Average patient age was 50.46 (13–81 years with a male-to-female ratio of 60/21. Fifty one (62.96% patients had infection, 41 (50.61% of them had an accompanying serious disease, 24 (29.62% of them had various tumors and 57 (70.37% patients were operated under emergency conditions during first operation. Causes of urgent abdominal re-explorations were as follows: leakage from intestinal repair site or from anostomosis (n:34; 41.97%; hemorrhage (n:15; 18.51%; intestinal perforation (n:8; 9.87%; intraabdominal infection or abscess (n:8; 9.87%; progressive intestinal necrosis (n:7; 8.64%; stomal complications (n:5; 6.17%; and postoperative ileus (n:4; 4.93%. Two or more UARs were performed in 18 (22.22% cases, and overall mortality was 34.97% (n:30. Interval between the first laparotomy and UAR averaged as 6.95 (1–20 days, and average hospitalization period was 27.1 (3–78 days. Mortality rate was found to be higher among the patients who received multiple UARs. The most common (55.5% cause of mortality was sepsis/multiple organ failure (MOF. The rates for common mortality and sepsis/MOF-dependent mortality that occured following UAR were

  12. Mechanical Properties of Niobium Cavities

    Energy Technology Data Exchange (ETDEWEB)

    Ciovati, Gianluigi [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Dhakal, Pashupati [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Matalevich, Joseph R. [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Myneni, Ganapati Rao [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)

    2015-09-01

    The mechanical stability of bulk Nb cavity is an important aspect to be considered in relation to cavity material, geometry and treatments. Mechanical properties of Nb are typically obtained from uniaxial tensile tests of small samples. In this contribution we report the results of measurements of the resonant frequency and local strain along the contour of single-cell cavities made of ingot and fine-grain Nb of different purity subjected to increasing uniform differential pressure, up to 6 atm. Measurements have been done on cavities subjected to different heat treatments. Good agreement between finite element analysis simulations and experimental data in the elastic regime was obtained with a single set of values of Young’s modulus and Poisson’s ratio. The experimental results indicate that the yield strength of medium-purity ingot Nb cavities is higher than that of fine-grain, high-purity Nb.

  13. Abdominal lift for laparoscopic cholecystectomy.

    Science.gov (United States)

    Gurusamy, Kurinchi Selvan; Koti, Rahul; Davidson, Brian R

    2013-08-31

    Laparoscopic cholecystectomy (key-hole removal of the gallbladder) is now the most often used method for treatment of symptomatic gallstones. Several cardiopulmonary changes (decreased cardiac output, pulmonary compliance, and increased peak airway pressure) occur during pneumoperitoneum, which is now introduced to allow laparoscopic cholecystectomy. These cardiopulmonary changes may not be tolerated in individuals with poor cardiopulmonary reserve. To assess the benefits and harms of abdominal wall lift compared to pneumoperitoneum in patients undergoing laparoscopic cholecystectomy. We searched the Cochrane Hepato-Biliary Group Controlled Trials Register, the Cochrane Central Register of Controlled Trials (CENTRAL) in The Cochrane Library, MEDLINE, EMBASE, and Science Citation Index Expanded until February 2013. We included all randomised clinical trials comparing abdominal wall lift (with or without pneumoperitoneum) versus pneumoperitoneum. We calculated the risk ratio (RR), rate ratio (RaR), or mean difference (MD) with 95% confidence intervals (CI) based on intention-to-treat analysis with both the fixed-effect and the random-effects models using the Review Manager (RevMan) software. For abdominal wall lift with pneumoperitoneum versus pneumoperitoneum, a total of 130 participants (all with low anaesthetic risk) scheduled for elective laparoscopic cholecystectomy were randomised in five trials to abdominal wall lift with pneumoperitoneum (n = 53) versus pneumoperitoneum only (n = 52). One trial which included 25 people did not state the number of participants in each group. All five trials had a high risk of bias. There was no mortality or conversion to open cholecystectomy in any of the participants in the trials that reported these outcomes. There was no significant difference in the rate of serious adverse events between the two groups (two trials; 2/29 events (0.069 events per person) versus 2/29 events (0.069 events per person); rate ratio 1.00; 95% CI 0

  14. Abdominal Wall Abscess due to Acute Perforated Sigmoid Diverticulitis: A Case Report with MDCT and US Findings

    Directory of Open Access Journals (Sweden)

    Rafailidis Vasileios

    2013-01-01

    Full Text Available Perforation of the inflamed diverticula is a common diverticulitis complication. It usually leads to the formation of a local abscess. In some rare cases, the inflammatory process may spread towards extra-abdominal sites like the anterior or posterior abdominal wall or the thigh and form an abscess in these sites. We present the case of a 73-year-old man with a history of pain at the lower left quadrant of the abdomen for 20 days and a visible mass in this site. Ultrasonography and computed tomography revealed this mass to be an abscess of the abdominal wall which had been formed by the spread of ruptured sigmoid diverticulitis by continuity of tissue through the lower left abdominal wall. Local drainage of the abscess was performed and the patient was discharged after alleviation of symptoms and an uneventful course. We also discuss causes of abdominal wall abscesses along with the possible pathways by which an intra-abdominal abscess could spread outside the abdominal cavity.

  15. An Intra-Abdominal Desmoid Tumor, Embedded in the Pancreas, Preoperatively Diagnosed as an Extragastric Growing Gastrointestinal Stromal Tumor

    Directory of Open Access Journals (Sweden)

    Mari Mizuno

    2017-04-01

    Full Text Available A 45-year-old woman was found to have a pancreatic tumor by abdominal ultrasound performed for a medical check-up. Abdominal contrast-enhanced computed tomography showed a hypovascular tumor measuring 30 mm in diameter in the pancreatic tail. Endoscopic ultrasound-guided fine needle aspiration was performed. An extragastric growing gastrointestinal stromal tumor was thereby diagnosed preoperatively, and surgical resection was planned. Laparoscopic surgery was attempted but conversion to open surgery was necessitated by extensive adhesions, and distal pancreatectomy, splenectomy, and partial gastrectomy were performed. The histological diagnosis was an intra-abdominal desmoid tumor. A desmoid tumor is a fibrous soft tissue tumor arising in the fascia and musculoaponeurotic tissues. It usually occurs in the extremities and abdominal wall, and only rarely in the abdominal cavity. We experienced a case with an intra-abdominal desmoid tumor that was histologically diagnosed after laparotomy, which had been preoperatively diagnosed as an extragastric growing gastrointestinal stromal tumor. Although rare, desmoid tumors should be considered in the differential diagnosis of intra-abdominal tumors. Herein, we report this case with a literature review.

  16. [Abdominal unplanned reoperations in the Service of General Surgery, University Hospital of Puebla].

    Science.gov (United States)

    León-Asdrúbal, Samuel Báez; Juárez-de la Torre, Juan Carlos; Navarro-Tovar, Fernando; Heredia-Montaño, Mónica; Quintero-Cabrera, José Eduardo

    2016-01-01

    The reoperation is considered as the access to the abdominal cavity before complete healing of the surgical wound from a previous operation within the first 60 days after the first procedure. It occurs in 0.5 to 15% of patients undergoing abdominal surgery and generates significant increase in morbidity and mortality in patients undergoing abdominal surgery. Identify the number of unplanned abdominal surgical reoperations and identify the causes of these unplanned reoperations were performed in our department. This is a retrospective study conducted at the University Hospital of Puebla in the period between April 2009 to February 2012, a total of 1,709 abdominal surgeries performed by the Service of General Surgery were included. Ninety-seven cases of reoperation of which 50 cases were not planned surgery cases were identified; 72% (36 cases) from emergency operations, and 28% of elective surgery. The incidence found in our study is low compared to similar studies. Prospective studies and focus on risk factors and causes of unplanned reoperations are required, in order to know them in detail and, consequently, reduce its incidence and morbidity and mortality they add.

  17. Current practice of abdominal wall closure in elective surgery – Is there any consensus?

    Directory of Open Access Journals (Sweden)

    Ridwelski Karsten

    2009-05-01

    Full Text Available Abstract Background Development of incisional hernia after open abdominal surgery remains a major cause of post-operative morbidity. The aim of this study was to determine the current practice of surgeons in terms of access to and closure of the abdominal cavity in elective open surgery. Methods Twelve surgical departments of the INSECT-Trial group documented the following variables for 50 consecutive patients undergoing abdominal surgery: fascial closure techniques, applied suture materials, application of subcutaneous sutures, subcutaneous drains, methods for skin closure. Descriptive analysis was performed and consensus of treatment variables was categorized into four levels: Strong consensus >95%, consensus 75–95%, overall agreement 50–75%, no consensus Results 157 out of 599 patients were eligible for analysis (85 (54% midline, 54 (35% transverse incisions. After midline incisions the fascia was closed continuously in 55 patients (65%, using slowly absorbable (n = 47, 55%, braided (n = 32, 38% sutures with a strength of 1 (n = 48, 57%. In the transverse setting the fascia was closed continuously in 39 patients (72% with slowly absorbable (n = 22, 41% braided sutures (n = 27, 50% with a strength of 1 (n = 30, 56%. Conclusion In the present evaluation midline incision was the most frequently applied access in elective open abdominal surgery. None of the treatments for abdominal wall closure (except skin closure in the midline group is performed on a consensus level.

  18. Composite resonator vertical cavity laser diode

    Energy Technology Data Exchange (ETDEWEB)

    Choquette, K.D.; Hou, H.Q.; Chow, W.W.; Geib, K.M.; Hammons, B.E.

    1998-05-01

    The use of two coupled laser cavities has been employed in edge emitting semiconductor lasers for mode suppression and frequency stabilization. The incorporation of coupled resonators within a vertical cavity laser opens up new possibilities due to the unique ability to tailor the interaction between the cavities. Composite resonators can be utilized to control spectral and temporal properties within the laser; previous studies of coupled cavity vertical cavity lasers have employed photopumped structures. The authors report the first composite resonator vertical cavity laser diode consisting of two optical cavities and three monolithic distributed Bragg reflectors. Cavity coupling effects and two techniques for external modulation of the laser are described.

  19. Abdominal compartment syndrome. Interesting aspects.

    Directory of Open Access Journals (Sweden)

    Nicolás Rubio Silveira

    2004-04-01

    Full Text Available The management of the abdominal compartiment syndrome is still a controversial point nowadays. Its early diagnosis and treatment constitute a challenge for surgeons and physicians at the intensive care unit who have to face these cases . The physiopathologic changes that can occur can lead to the patients death, constituting pulmonary thromboembolism and multiorgan failure the principal causes of death. This paper presents the principal clinical parameters and technical procedures for its diagnosis and treatment with the aim of diminishing its morbi-mortality raits in our hospitals

  20. Clinical profile of abdominal tuberculosis in children

    OpenAIRE

    Ira Shah; Ramya Uppuluri

    2010-01-01

    Aim: A retrospective study was conducted in children, suffering from abdominal TB, attending Pediatric TB clinic from 2007 to 2009. Materials And Methods: Age-wise distribution and type of abdominal TB were analyzed with clinical features. Results : Out of 285 children with TB, 32 (11.2%) had abdominal tuberculosis. Male: Female ratio was 2.1:1. 7 (21.9%) children were 10 years of age. The most comm...

  1. [Internationalization and innovation of abdominal acupuncture].

    Science.gov (United States)

    Wang, Yong-Zhou

    2013-09-01

    Characteristics of abdominal acupuncture are analyzed through three aspects of inheriting and innovation, collaborated research as well as international visual field. It is pointed that abdominal acupuncture is based on clinical practice, focuses on enhancing the therapeutic effect and expending the clinical application. It also promots the thinking on how to recall the tradition and how to inherit tradition availably. The modern medical problems should be studied and innovation resolutions should be searched, which can help the internationalization and modernization of abdominal acupuncture.

  2. Abdominal Compartment Syndrome due to OHSS

    Directory of Open Access Journals (Sweden)

    Firoozeh Veisi

    2012-03-01

    Full Text Available Abdominal compartment syndrome is a dangerous clinical situation, usually following abdominal injuries&operations. It is seldom observed in patients with gynecologic and obstetric problems. Abdominalcompartment syndrome may be consequence ovarian hyperstimulation syndrome. A 28-year-old womanpresented as a sever ovarian hyperstimulation.The increased IAP indicated that OHSS may beconsidered a compartment syndrome. Abdominal compartment syndrome needs laparotomy orparacentesis for reduction of pressure.

  3. Abdominal Pain in the Geriatric Patient.

    Science.gov (United States)

    Magidson, Phillip D; Martinez, Joseph P

    2016-08-01

    With an aging population, emergency department clinicians can expect an increase in geriatric patients presenting with abdominal pain. Compared with younger patients, this patient population is less likely to present with classic symptoms, physical examination findings, and laboratory values of abdominal disease. However, the morbidity and mortality associated with elderly patients presenting with abdominal pathologic conditions are significant. For this reason, the clinician must be familiar with some subtle and not so subtle differences when caring for the geriatric patient with abdominal pain to ensure timely diagnosis and appropriate treatment.

  4. Abdominal migraine in childhood: a review

    Directory of Open Access Journals (Sweden)

    Scicchitano B

    2014-08-01

    Full Text Available Beatrice Scicchitano,1 Gareth Humphreys,1 Sally G Mitton,2 Thiagarajan Jaiganesh1 1Children's Emergency Department, 2Department of Paediatric Gastroenterology, St Georges Hospital, St Georges Healthcare NHS Trust, Tooting, London, United Kingdom Abstract: The childhood condition of abdominal migraine has been described under many different synonyms, including "abdominal epilepsy", "recurrent abdominal pain", "cyclical vomiting syndrome", and "functional gastrointestinal disorder". In the early literature, abdominal migraine is included in the "childhood periodic syndrome", first described by Wyllie and Schlesinger in 1933. Abdominal migraine has emerged over the last century as a diagnostic entity in its own right thanks to the development of well defined diagnostic criteria and its recent inclusion in the International Headache Society's Classification of Headache disorders. Despite this progress, little is known about the pathophysiology of the condition, and the treatment options are poorly defined. Here we summarize the recent literature, with particular focus on establishing the diagnosis of abdominal migraine and its pathophysiology, and suggest an approach to management. Keywords: abdominal migraine, recurrent abdominal pain, abdominal epilepsy, cyclical vomiting

  5. Percutaneous drainage of abdominal abcess

    Energy Technology Data Exchange (ETDEWEB)

    Men, Sueleyman E-mail: suleyman.men@deu.edu.tr; Akhan, Okan; Koeroglu, Mert

    2002-09-01

    The mortality in undrained abdominal abscesses is high with a mortality rate ranging between 45 and 100%. The outcome in abdominal abscesses, however, has improved due to advances in image guided percutaneous interventional techniques. The main indications for the catheter drainage include treatment or palliation of sepsis associated with an infected fluid collection, and alleviation of the symptoms that may be caused by fluid collections by virtue of their size, like pancreatic pseudocele or lymphocele. The single liver abscesses may be drained with ultrasound guidance only, whereas the multiple abscesses usually require computed tomography (CT) guidance and placement of multiple catheters. The pancreatic abscesses are generally drained routinely and urgently. Non-infected pancreatic pseudocysts may be simply observed unless they are symptomatic or cause problems such as pain or obstruction of the biliary or the gastrointestinal tract. Percutaneous routes that have been described to drain pelvic abscesses include transrectal or transvaginal approach with sonographic guidance, a transgluteal, paracoccygeal-infragluteal, or perineal approach through the greater sciatic foramen with CT guidance. Both the renal and the perirenal abscesses are amenable to percutaneous drainage. Percutaneous drainage provides an effective and safe alternative to more invasive surgical drainage in most patients with psoas abscesses as well.

  6. MR angiography in abdominal neoplasms

    Energy Technology Data Exchange (ETDEWEB)

    Squillaci, E. [Dept. of Radiology, Rome-2 Univ., Hospital S. Eugenio, Rome (Italy); Crecco, M. [Dept. of Radiology, Cancer Research Inst. (Regina Elena), Rome (Italy); Grandinetti, M.L. [Dept. of Radiology, Cancer Research Inst. (Regina Elena), Rome (Italy); Maspes, F. [Dept. of Radiology, Rome-2 Univ., Hospital S. Eugenio, Rome (Italy); Lo Presti, G. [Dept. of Radiology, Rome-2 Univ., Hospital S. Eugenio, Rome (Italy); Squillaci, S. [Dept. of Radiology, Cancer Research Inst. (Regina Elena), Rome (Italy); Simonetti, G. [Dept. of Radiology, Rome-2 Univ., Hospital S. Eugenio, Rome (Italy)

    1994-10-01

    The role of magnetic resonance angiography (MRA) in the evaluation of vascular involvement was studied in 55 patients with abdominal neoplasms. A 2-D time-of-flight (TOF) technique was used in all patients. All patients underwent CT and MR examinations before MRA. Also, MR angiograms were compared with digital subtraction angiography in 22 cases, with Doppler US in 13 cases, and with surgical findings in 20 cases. In all patients with liver neoplasms (n=29) MRA demonstrated the absence of flow in the infiltrated segments. Pericapsular neovascularization was observed in 12 patients. Portal vein involvement was correctly detected in 27 patients. In all cases MRA demonstrated in relationship between the tumor and venous structures. Portosystemic shunts were visualized in 20 of 21 patients with portal hypertension. Vena cava thrombosis (3 cases), compression (5 cases), and displacement (2 cases) were correctly demonstrated. In renal (n=6) and adrenal gland (n=3) tumors renal vein compression was correctly detected in 2 cases, displacement in 1 case, and thrombosis in 3 cases, with only 1 false-positive finding. In 7 patients with pancreatic tumors MRA demonstrated splenic vein thrombosis in 2 cases and compression in 2 cases, with one false-positive finding. Our results indicate that MRA provides precise information regarding venous vascular involvement in abdominal neoplasms, but preoperative arterial mapping is still problematic. (orig.)

  7. Vibration insensitive optical ring cavity

    Institute of Scientific and Technical Information of China (English)

    Miao Jin; Jiang Yan-Yi; Fang Su; Bi Zhi-Yi; Ma Long-Sheng

    2009-01-01

    The mounting configuration of an optical ring cavity is optimized for vibration insensitivity by finite element analysis. A minimum response to vertical accelerations is found by simulations made for different supporting positions.

  8. Niobium LEP 2 accelerating cavities

    CERN Multimedia

    An accelerating cavity from LEP. This could be cut open to show the layer of niobium on the inside. Operating at 4.2 degrees above absolute zero, the niobium is superconducting and carries an accelerating field of 6 million volts per metre with negligible losses. Each cavity has a surface of 6 m2. The niobium layer is only 1.2 microns thick, ten times thinner than a hair. Such a large area had never been coated to such a high accuracy. A speck of dust could ruin the performance of the whole cavity so the work had to be done in an extremely clean environment. These challenging requirements pushed European industry to new achievements. 256 of these cavities were used in an upgrade of the LEP accelerator to double the energy of the particle beams.

  9. SRF Cavity Fabrication and Materials

    CERN Document Server

    Singer, W

    2014-07-17

    The technological and metallurgical requirements of material for highgradient superconducting cavities are described. High-purity niobium, as the preferred metal for the fabrication of superconducting accelerating cavities, should meet exact specifications. The content of interstitial impurities such as oxygen, nitrogen, and carbon must be below 10μg/g. The hydrogen content should be kept below 2μg/g to prevent degradation of the Q-value under certain cool-down conditions. The material should be free of flaws (foreign material inclusions or cracks and laminations) that can initiate a thermal breakdown. Defects may be detected by quality control methods such as eddy current scanning and identified by a number of special methods. Conventional and alternative cavity fabrication methods are reviewed. Conventionally, niobium cavities are fabricated from sheet niobium by the formation of half-cells by deep drawing, followed by trim machining and Electron-Beam Welding (EBW). The welding of half-cells is a delicate...

  10. Diaphragmatic rupture caused by inappropriate closed drainage of thoracic cavity:a case report%胸腔闭式引流不当致膈肌破裂1例

    Institute of Scientific and Technical Information of China (English)

    汪洋; 张进祥; 杨冲; 陈立波

    2013-01-01

    Drainage of thoracic cavity is a routine treatment for traumatic pleural effusion or pneurnothorax, whereas improper operation may cause serious consequences, A case of 47-year-old man with traffic injury is reported herein. The patient had abdominal pain, chest distress, and trouble breathing when admitted to our hospital. After admission, the patient's blood pressure decreased, heart rate increased and blood was draw upon from the chest tubes. Chest examination indicated wet rales in both sides and decreased breath sounds in the left side. Abdominal examination reversed peritonitis symptoms. Abdominal X-ray indicated there were free gas under left hernidia-phragm and moderate amount of left pleural effusion. The abdominal computed tomography (CT) scan showed pleural drainage tube in the abdominal cavity which was closely related to spleen. We made diagnosis as following: ①multiple injuries caused by traffic injury;②diaphragmatic injury;③splenic rupture.

  11. Sterility of the uterine cavity

    DEFF Research Database (Denmark)

    Møller, Birger R.; Kristiansen, Frank V.; Thorsen, Poul

    1995-01-01

    from the same sites. Nearly a quarter of all the patients harbored one or more microorganisms in the uterus, mostly Gardnerella vaginalis, Enterobacter and Streptococcus agalactiae. We found that in a significant number of cases, the uterine cavity is colonized with potentially pathogenic organisms...... which may play a causative role in endometritis. The results indicate that inflammation of the uterine cavity should be evaluated by hysteroscopic examination before hysterectomy is undertaken in patients with persistent irregular vaginal bleeding. Udgivelsesdato: 1995-Mar...

  12. LEP Radio Frequency Copper Cavity

    CERN Multimedia

    The pulse of a particle accelerator. 128 of these radio frequency cavities were positioned around CERN's 27-kilometre LEP ring to accelerate electrons and positrons. The acceleration was produced by microwave electric oscillations at 352 MHz. The electrons and positrons were grouped into bunches, like beads on a string, and the copper sphere at the top stored the microwave energy between the passage of individual bunches. This made for valuable energy savings as it reduced the heat generated in the cavity.

  13. Imaging of the oral cavity.

    Science.gov (United States)

    Meesa, Indu Rekha; Srinivasan, Ashok

    2015-01-01

    The oral cavity is a challenging area in head and neck imaging because of its complex anatomy and the numerous pathophysiologies that involve its contents. This challenge is further compounded by the ubiquitous artifacts that arise from the dental amalgam, which compromise image quality. In this article, the anatomy of the oral cavity is discussed in brief, followed by a description of the imaging technique and some common pathologic abnormalities.

  14. Active Control of Open Cavities

    Science.gov (United States)

    UKeiley, Lawrence

    2010-01-01

    Open loop edge blowing was demonstrated as an effective method for reducing the broad band and tonal components of the fluctuating surface pressure in open cavities. Closed loop has been successfully applied to low Mach number open cavities. Need to push actuators that are viable for closed loop control in bandwidth and output. Need a better understanding of the effects of control on the flow through detailed measurements so better actuation strategies can be developed.

  15. TESLA superconducting RF cavity development

    Energy Technology Data Exchange (ETDEWEB)

    Koepke, K. [Fermi National Accelerator Lab., Batavia, IL (United States); TESLA Collaboration

    1995-05-01

    The TESLA collaboration has made steady progress since its first official meeting at Cornell in 1990. The infrastructure necessary to assemble and test superconducting rf cavities has been installed at the TESLA Test Facility (TTF) at DESY. 5-cell, 1.3 GHz cavities have been fabricated and have reached accelerating fields of 25 MV/m. Full sized 9-cell copper cavities of TESLA geometry have been measured to verify the higher order modes present and to evaluate HOM coupling designs. The design of the TESLA 9-cell cavity has been finalized and industry has started delivery. Two prototype 9-cell niobium cavities in their first tests have reached accelerating fields of 10 MV/m and 15 MV/m in a vertical dewar after high peak power (HPP) conditioning. The first 12 m TESLA cryomodule that will house 8 9-cell cavities is scheduled to be delivered in Spring 1995. A design report for the TTF is in progress. The TTF test linac is scheduled to be commissioned in 1996/1997. (orig.).

  16. Polishing Difficult-To-Reach Cavities

    Science.gov (United States)

    Malinzak, R. Michael; Booth, Gary N.

    1990-01-01

    Springy abrasive tool used to finish surfaces of narrow cavities made by electrical-discharge machining. Robot arm moves vibrator around perimeters of cavities, polishing walls of cavities as it does so. Tool needed because such cavities inaccessible or at least difficult to reach with most surface-finishing tools.

  17. Thoraco-abdominal aortic aneurysm branched repair

    NARCIS (Netherlands)

    Verhoeven, E. L. G.; Tielliu, I. F. J.; Ferreira, M.; Zipfel, B.; Adam, D. J.

    2010-01-01

    Open thoraco-abdominal aortic aneurysm repair is a demanding procedure with high impact on the patient and the operating team. Results from expert centres show mortality rates between 3-21%, with extensive morbidity including renal failure and paraplegia. Endovascular repair of abdominal aortic aneu

  18. Actinomycosis mimicking abdominal neoplasm. Case report

    DEFF Research Database (Denmark)

    Waaddegaard, P; Dziegiel, Morten Hanefeld

    1988-01-01

    In a patient with a 6-month history of nonspecific abdominal complaints, preoperative examination indicated malignant disease involving the right ovary, rectum and sigmoid, but laparotomy revealed abdominal actinomycosis. Removal of the ovary and low anterior colonic resection followed by penicil...

  19. Well Leg Compartment Syndrome After Abdominal Surgery

    DEFF Research Database (Denmark)

    Christoffersen, Jens Krogh; Hove, Lars Dahlgaard; Mikkelsen, Kim Lyngby;

    2016-01-01

    BACKGROUND: Well leg compartment syndrome (WLCS) is a complication to abdominal surgery. We aimed to identify risk factors for and outcome of WLCS in Denmark and literature. METHODS: Prospectively collected claims to the Danish Patient Compensation Association (DPCA) concerning WLCS after abdominal...

  20. Abdominal Pain (Stomach Pain), Short-Term

    Science.gov (United States)

    ... in Children and TeensRead MoreBMI Calculator Abdominal Pain (Stomach Pain), Short-termJust about everyone has had a " ... time or another. But sudden severe abdominal pain (stomach pain), also called acute pain, shouldn't be ...

  1. ABDOMINAL WALL DESMOID TUMOUR OVER APPENDICECTOMY SCAR

    OpenAIRE

    Vijaya; Sarbeshwar; Gogoi

    2015-01-01

    BACKGROUND: Desmoid tumors are slow growing deep fibromatoses with aggressive infiltration of adjacent tissue but without any metastatic potential . (1,2,3) CASE PRESENTATION: We report a female patient with desmoid tumor of the abdominal wall over appendicectomy scar w ho underwent primary resection. Preoperative evaluation incl uded abdominal ultrasound, and computed tomography. The histology of this cases revealed a desmoid tumor. CONCLUSION: ...

  2. Recovery after abdominal wall reconstruction

    DEFF Research Database (Denmark)

    Jensen, Kristian Kiim

    2017-01-01

    was lacking. Study II was a case-control study of the effects of an enhanced recovery after surgery pathway for patients undergoing abdominal wall reconstruction for a giant hernia. Sixteen consecutive patients were included prospectively after the implementation of a new enhanced recovery after surgery...... pathway at the Digestive Disease Center, Bispebjerg Hospital, and compared to a control group of 16 patients included retrospectively in the period immediately prior to the implementation of the pathway. The enhanced recovery after surgery pathway included preoperative high-dose steroid, daily assessment...... of revised discharge criteria and an aggressive approach to restore bowel function (chewing gum and enema on postoperative day two). Patients who followed the enhanced recovery after surgery pathway reported low scores of pain, nausea and fatigue, and were discharged significantly faster than patients...

  3. Fabrication of elliptical SRF cavities

    Science.gov (United States)

    Singer, W.

    2017-03-01

    The technological and metallurgical requirements of material for high-gradient superconducting cavities are described. High-purity niobium, as the preferred metal for the fabrication of superconducting accelerating cavities, should meet exact specifications. The content of interstitial impurities such as oxygen, nitrogen, and carbon must be below 10 μg g-1. The hydrogen content should be kept below 2 μg g-1 to prevent degradation of the quality factor (Q-value) under certain cool-down conditions. The material should be free of flaws (foreign material inclusions or cracks and laminations) that can initiate a thermal breakdown. Traditional and alternative cavity mechanical fabrication methods are reviewed. Conventionally, niobium cavities are fabricated from sheet niobium by the formation of half-cells by deep drawing, followed by trim machining and electron beam welding. The welding of half-cells is a delicate procedure, requiring intermediate cleaning steps and a careful choice of weld parameters to achieve full penetration of the joints. A challenge for a welded construction is the tight mechanical and electrical tolerances. These can be maintained by a combination of mechanical and radio-frequency measurements on half-cells and by careful tracking of weld shrinkage. The main aspects of quality assurance and quality management are mentioned. The experiences of 800 cavities produced for the European XFEL are presented. Another cavity fabrication approach is slicing discs from the ingot and producing cavities by deep drawing and electron beam welding. Accelerating gradients at the level of 35-45 MV m-1 can be achieved by applying electrochemical polishing treatment. The single-crystal option (grain boundary free) is discussed. It seems that in this case, high performance can be achieved by a simplified treatment procedure. Fabrication of the elliptical resonators from a seamless pipe as an alternative is briefly described. This technology has yielded good

  4. 3D cavity detection technique and its application based on cavity auto scanning laser system

    Institute of Scientific and Technical Information of China (English)

    LIU Xi-ling; LI Xi-bing; LI Fa-ben; ZHAO Guo-yan; QIN Yu-hui

    2008-01-01

    Ground constructions and mines are severely threatened by underground cavities especially those unsafe or inaccessible ones. Safe and precise cavity detection is vital for reasonable cavity evaluation and disposal. The conventional cavity detection methods and their limitation were analyzed. Those methods cannot form 3D model of underground cavity which is used for instructing the cavity disposal; and their precisions in detection are always greatly affected by the geological circumstance. The importance of 3D cavity detection in metal mine for safe exploitation was pointed out; and the 3D cavity laser detection method and its principle were introduced. A cavity auto scanning laser system was recommended to actualize the cavity 3D detection after comparing with the other laser detection systems. Four boreholes were chosen to verify the validity of the cavity auto scanning laser system. The results show that the cavity auto scanning laser system is very suitable for underground 3D cavity detection, especially for those inaccessible ones.

  5. Intra-abdominal pressure during swimming.

    Science.gov (United States)

    Moriyama, S; Ogita, F; Huang, Z; Kurobe, K; Nagira, A; Tanaka, T; Takahashi, H; Hirano, Y

    2014-02-01

    The present study aimed to determine the intra-abdominal pressure during front crawl swimming at different velocities in competitive swimmers and to clarify the relationships between stroke indices and changes in intra-abdominal pressure. The subjects were 7 highly trained competitive collegiate male swimmers. Intra-abdominal pressure was measured during front crawl swimming at 1.0, 1.2 and 1.4 m · s(-1) and during the Valsalva maneuver. Intra-abdominal pressure was taken as the difference between minimum and maximum values, and the mean of 6 stable front crawl stroke cycles was used. Stroke rate and stroke length were also measured as stroke indices. There were significant differences in stroke rate among all velocities (P swimming velocity. These findings do not appear to support the effectiveness of trunk training performed by competitive swimmers aimed at increasing intra-abdominal pressure. © Georg Thieme Verlag KG Stuttgart · New York.

  6. Pulmonary complications of abdominal wall defects.

    Science.gov (United States)

    Panitch, Howard B

    2015-01-01

    The abdominal wall is an integral component of the chest wall. Defects in the ventral abdominal wall alter respiratory mechanics and can impair diaphragm function. Congenital abdominal wall defects also are associated with abnormalities in lung growth and development that lead to pulmonary hypoplasia, pulmonary hypertension, and alterations in thoracic cage formation. Although infants with ventral abdominal wall defects can experience life-threatening pulmonary complications, older children typically experience a more benign respiratory course. Studies of lung and chest wall function in older children and adolescents with congenital abdominal wall defects are few; such investigations could provide strategies for improved respiratory performance, avoidance of respiratory morbidity, and enhanced exercise ability for these children.

  7. Abdominal ultrasonography in the diagnostic work-up in children with recurrent abdominal pain

    DEFF Research Database (Denmark)

    Wewer, Anne Vibeke; Strandberg, C; Pærregaard, Anders;

    1997-01-01

    We report on our experience with routine abdominal ultrasonography in 120 children (aged 3-15 years) with recurrent abdominal pain, in order to determine the diagnostic value of this investigation. Eight children (7%) revealed sonographic abnormalities: gallbladder stone (n = 2), splenomegaly (n...... = 1) and urogenital abnormalities (n = 5). The recurrent abdominal pain could be explained by these findings in only two (may be three) cases. CONCLUSION: The diagnostic value of abdominal ultrasonography in unselected children with recurrent abdominal pain is low. However, the direct visualization...... of the abdominal structures as being normal may be helpful to the parents and the child in their understanding and acceptance of the benign nature of recurrent abdominal pain....

  8. An Intra-Abdominal Pseudocyst around a Ventriculoperitoneal Shunt due to Streptococcus Infection 7 Years after Shunt Surgery

    Directory of Open Access Journals (Sweden)

    Arata Tomiyama

    2014-01-01

    Full Text Available In 1999, a 50-year-old woman underwent ventriculoperitoneal (VP shunt surgery for hydrocephalus after subarachnoid hemorrhage. She was hospitalized for fever and recurrent systemic seizures in November 2006. Head computed tomography (CT showed only old changes. The seizures and fever were controlled by medicinal therapy. However, in December, her consciousness level suddenly decreased, and she showed progressive lower abdominal distension. Head CT showed marked ventriculomegaly, and abdominal CT showed a giant cystic mass at the shunt-tube tip in the lower abdominal cavity. Because thick pus was aspirated from the intra-abdominal mass, we diagnosed the patient with acute obstructive hydrocephalus due to an infected abdominal pseudocyst. Laparotomy and direct cyst drainage were performed, and antibiotic therapy against Streptococcus, the causative pathogen, was administered. The VP shunt tube was replaced. The postoperative course was uneventful, and postoperative CT showed hydrocephalus improvement and no pseudocyst recurrence. Abdominal pseudocysts, which are rare after VP shunt surgeries, usually occur after the subacute postoperative course in younger cerebral hemorrhagic cases. Our case was quite rare because the cyst developed in the chronic phase in an older patient and was caused by streptococcal infection. The cyst components should be examined before cyst drainage when choosing surgical strategies.

  9. [Surgical treatment of the defects of the lumbar-lateral region of the abdominal wall in elderly and senile patients].

    Science.gov (United States)

    Vorovs'kyĭ, O O

    2012-12-01

    The results of surgical treatment of 44 patients with defects in the lumbar-lateral abdomen. Age of patients ranged from 60 to 78 years. Causes defects in 32 (72.7%) patients were hernia after surgical interventions on the urinary system using lumbotomic accesses; in 4 (9.1%)--hernias, in 2 (4.5%)--eventration after applying troakar lateral openings during laparoscopic surgery; in 2 (4.5%)--hernias, in 2 (4.5%)--eventration, and in 2 (4.5%)--evisceration through aperture after removing drains for drainage of the abdominal cavity. To prevent the development of the proposed method of drainage of the abdominal cavity during laparoscopic operations (patent for useful model No 51170 from 12.07.10). Autotransplantation own tissues justified by the size of the defect W1. If there is a defect larger aloplastyc shown by the method of sub lay in the proposed original method.

  10. The ESS elliptical cavity cryomodules

    Science.gov (United States)

    Darve, Christine; Bosland, Pierre; Devanz, Guillaume; Olivier, Gilles; Renard, Bertrand; Thermeau, Jean-Pierre

    2014-01-01

    The European Spallation Source (ESS) is a multi-disciplinary research centre under design and construction in Lund, Sweden. This new facility is funded by a collaboration of 17 European countries and is expected to be up to 30 times brighter than today's leading facilities and neutron sources. The ESS will enable new opportunities for researchers in the fields of life sciences, energy, environmental technology, cultural heritage and fundamental physics. A 5 MW long pulse proton accelerator is used to reach this goal. The pulsed length is 2.86 ms, the repetition frequency is 14 Hz (4 % duty cycle), and the beam current is 62.5 mA. The superconducting section of the Linac accelerates the beam from 80 MeV to 2.0 GeV. It is composed of one string of spoke cavity cryomodule and two strings of elliptical cavity cryomodules. These cryomodules contain four elliptical Niobium cavities operating at 2 K and at a frequency of 704.42 MHz. This paper introduces the thermo-mechanical design, the prototyping and the expected operation of the ESS elliptical cavity cryomodules. An Elliptical Cavity Cryomodule Technology Demonstrator (ECCTD) will be built and tested in order to validate the ESS series production.

  11. The ESS spoke cavity cryomodules

    Science.gov (United States)

    Bousson, Sebastien; Darve, Christine; Duthil, Patxi; Elias, Nuno; Molloy, Steve; Reynet, Denis; Thermeau, Jean-Pierre

    2014-01-01

    The European Spallation Source (ESS) is a multi-disciplinary research centre under design and construction in Lund, Sweden. This new facility is funded by a collaboration of 17 European countries and is expected to be up to 30 times brighter than today's leading facilities and neutron sources. The ESS will enable new opportunities for researchers in the fields of life sciences, energy, environmental technology, cultural heritage and fundamental physics. A 5 MW long pulse proton accelerator is used to reach this goal. The pulsed length is 2.86 ms, the repetition frequency is 14 Hz (4 % duty cycle), and the beam current is 62.5 mA. It is composed of one string of spoke cavity cryomodule and two strings of elliptical cavity cryomodules. This paper introduces the thermo-mechanical design and expected operation of the ESS spoke cavity cryomodules. These cryomodules contain two double spoke bulk Niobium cavities operating at 2 K and at a frequency of 352.21 MHz. The superconducting section of the Spoke Linac accelerates the beam from 90 MeV to 220 MeV. A Spoke Cavity Cryomodule Technology Demonstrator will be built and tested in order to validate the ESS series production.

  12. Multiple abdominal nodules in a patient with ulcerative proctitis: a case of peritoneal splenosis

    Directory of Open Access Journals (Sweden)

    Margherita Marocchi

    2013-03-01

    Full Text Available A 40-year old gardener was referred for ulcerative proctitis treated with topical mesalamine with rapid improvement of symptoms. Eighteen years before he had had a splenectomy for traumatic splenic rupture. At the end of 2010, he was admitted to another hospital because of abdominal pain. Computerized tomography (CT scan and magnetic resonance imaging revealed multiple abdominal nodules but a definite diagnosis was not made. While being examined for the proctitis, the patient was admitted to our unit due to worsening of the abdominal pain. After another CT scan, a laparoscopy was performed: several reddish-blue nodules on the peritoneal wall were observed and biopsies were performed. Histological examination was consistent with splenosis. After the procedure, we observed an improvement in the abdominal pain. Splenosis is an acquired condition defined as autotransplantation of viable splenic tissue throughout different sites of the body. It occurs after splenic rupture via trauma or surgery. Splenosis is a benign condition that is usually found incidentally unless symptomatic. Since on radiographic examination it can mimic a neoplasia, extensive workup is usually needed. The diagnostic method of choice is nuclear scintigraphy. Splenosis usually occurs in the abdominal and pelvic cavities but patients have been described with splenosis in other intrathoracic, hepatic and subcutaneous sites. Splenosis is usually asymptomatic and treatment is not necessary. Most patients who have an exploratory laparotomy or laparoscopy for abdominal pain, such as in our patient, experience no more pain after the procedure, regardless of whether the splenic nodules have been completely removed or not. The reason for this spontaneous improvement is not known.

  13. Ultrasound presentation of abdominal non-Hodgkin lymphomas in pediatric patients

    Directory of Open Access Journals (Sweden)

    Agnieszka Brodzisz

    2013-12-01

    Full Text Available Introduction: Burkitt’s lymphoma accounts for approximately 25% of lymphomas diagnosed in children of developmental age. The tumor is localized mainly in the intestine (usually in the ileocecal region, mesenteric lymph nodes and extraperitoneal space. The clinical symptoms are non-specific and include: abdominal pain, vomiting, gastrointestinal bleeding, and acute abdomen suggesting appendicitis or intestinal intussusception. On ultrasound examination, Burkitt’s lymphoma may manifest itself in various ways, depending on the origin of the lesion. Aim: The aim of this paper was to review the ultrasound manifestation of abdominal Burkitt’s lymphoma in children. Material and methods: The analysis included 15 pediatric patients with Burkitt’s non-Hodgkin lymphoma in the abdominal cavity. The mean age of the patients was 9.5. Abdominal and gastrointestinal ultrasound examinations were conducted using a Siemens scanner with a convex transducer of 3.5–5 MHz and linear array transducer of L4 – 7.5 MHz. Results: Ultrasound examinations conducted in the group of 15 patients revealed pathological masses localized in the gastric wall in 3 patients (20%, in the ileocecal region in 10 patients (67% and a disseminated process in 2 patients (13%. In 12 patients with a diagnosed Burkitt’s non-Hodgkin lymphoma in an extragastric localization, differences in the morphology of the lesions were observed. Conclusions: The clinical and ultrasound picture of abdominal Burkitt’s lymphoma in children is variable. A careful ultrasound assessment of all abdominal organs conducted with the use of convex and linear probes increases the chances of establishing an adequate diagnosis.

  14. RRR Characteristics for SRF Cavities

    CERN Document Server

    Jung, Yoochul; Joung, Mijoung

    2015-01-01

    The first heavy ion accelerator is being constructed by the rare isotope science project (RISP) launched by the Institute of Basic Science (IBS) in South Korea. Four different types of superconducting cavities were designed, and prototypes were fabricated such as a quarter wave resonator (QWR), a half wave resonator (HWR) and a single spoke resonator (SSR). One of the critical factors determining performances of the superconducting cavities is a residual resistance ratio (RRR). The RRR values essentially represent how much niobium is pure and how fast niobium can transmit heat as well. In general, the RRR degrades during electron beam welding due to the impurity incorporation. Thus it is important to maintain RRR above a certain value at which a niobium cavity shows target performance. In this study, RRR degradation related with electron beam welding conditions, for example, welding power, welding speed, and vacuum level will be discussed.

  15. Textiloma, migration of retained long gauze from abdominal cavity to intestine

    Directory of Open Access Journals (Sweden)

    Hojjat Molaei Govarjin

    2010-01-01

    Full Text Available Retaining of long gauzes and surgical sponges in the abdomen is one of the most frequent medical errors usually manifests as abscess or abdomino- cutaneus fistulas and with no definite symptoms during lifetime. Here, we introduce a 35 year old woman with an intestino-cutaneal fistula caused by retained long gauze in the abdomen entered the terminal ileum,9 months after cesarean section. This is called “Textiloma”. There is no report of textiloma in Iran and there are only a few cases in the world.

  16. Successful Management of a Combined Abdominal and Thoracic Trauma with Rectal Impalement: Report of a Case

    Directory of Open Access Journals (Sweden)

    Konstantinos Kasapas

    2013-01-01

    Full Text Available Introduction. Combined abdominal and thoracic impalement injuries are a rare form of penetrating trauma. Nowadays, they occur more frequently as an accident and not so often as a deliberate violent action. Case Report. A 35-year-old man was admitted to our emergency department with chest pain and respiratory distress after he had reportedly slipped in his bathtub. Abdominal and thoracic imaging, including computed tomography (CT, confirmed a right-sided pneumothorax and a liver laceration without bleeding or further endoperitoneal trauma. A chest tube was placed. During his hospitalization in the first 24-hour period, he complained of abdominal and right shoulder pain accompanied by fever. A new abdominal and thoracic CT scanning revealed a rupture of the rectosigmoid, a rupture of right hemidiaphragm, and a foreign body in the thoracic cavity. The patient admitted that a broomstick was violently placed through his rectum, and he underwent a thoracotomy with an exploratory laparotomy. The foreign object was removed, the diaphragmatic rupture was repaired, and a Hartmann’s procedure was performed. The postoperative course was uneventful. Conclusion. In cases of combined thoracoabdominal trauma, high index of suspicion is required when medical history is misleading and the injuries are not obvious immediately. A coordinated team effort in a well-organized trauma center is also very important.

  17. A Torted Ruptured Intra-abdominal Testicular Seminoma Presenting As An Acute Abdomen.

    Science.gov (United States)

    Nickalls, Oliver James; Tan, Char Loo; Thian, Yee Liang

    2015-12-01

    The susceptibility of the undescended testis to malignant transformation is well documented. The most common location of the undescended testis is within the inguinal canal, with only a minority located within the abdominal cavity. When a testicular mass develops, the risk of torsion increases. We describe a large intra-abdominal testicular seminoma that had undergone torsion, rupture and haemorrhage, presenting as an acute abdomen. A 30 year old man presented to the emergency department with right iliac fossa pain. Computed tomography in the emergency department showed haemoperitoneum and a torted large left testicular mass, likely malignant. The patient underwent laparotomy and excision of the mass. Histologic examination revealed a grossly enlarged seminomatous testis which had torted and ruptured. While pre-operative imaging diagnosis of an intra-abdominal testicular seminoma has been published, reports are few. To the best of the author's knowledge pre-operative imaging diagnosis of a malignant testicular mass with torsion and intra-abdominal haemorrhage presenting as an acute abdomen has not been described before.

  18. A Torted Ruptured Intra-abdominal Testicular Seminoma Presenting As An Acute Abdomen

    Science.gov (United States)

    Nickalls, Oliver James; Tan, Char Loo; Thian, Yee Liang

    2015-01-01

    The susceptibility of the undescended testis to malignant transformation is well documented. The most common location of the undescended testis is within the inguinal canal, with only a minority located within the abdominal cavity. When a testicular mass develops, the risk of torsion increases. We describe a large intra-abdominal testicular seminoma that had undergone torsion, rupture and haemorrhage, presenting as an acute abdomen. A 30 year old man presented to the emergency department with right iliac fossa pain. Computed tomography in the emergency department showed haemoperitoneum and a torted large left testicular mass, likely malignant. The patient underwent laparotomy and excision of the mass. Histologic examination revealed a grossly enlarged seminomatous testis which had torted and ruptured. While pre-operative imaging diagnosis of an intra-abdominal testicular seminoma has been published, reports are few. To the best of the author’s knowledge pre-operative imaging diagnosis of a malignant testicular mass with torsion and intra-abdominal haemorrhage presenting as an acute abdomen has not been described before. PMID:27200173

  19. Temporary feeding inhibition caused by artificial abdominal distension in the bedbug, Cimex lectularius.

    Science.gov (United States)

    Wintle, Kenneth; Reinhardt, Klaus

    2008-07-01

    Abdominal distension of haematophagous insects caused by ingested blood has been recognised as an important contributor to triggering meal termination, feeding inhibition and further susceptibility to host signals. Factors that regulate feeding behaviour of the common bedbug, Cimex lectularius, are poorly understood. By injecting air directly into the body cavity of virgin female C. lectularius we artificially induced abdominal distension without providing chemical cues of the blood meal and without applying gut distension. Body length increased to 138% after feeding and 147% after inflation. The early decline in body volume is similar in blood-fed bugs but after between 8 and 24h became faster in inflated than fed bedbugs. Artificially inflated individuals remained feeding-inhibited at lower abdominal distensions than those that terminate blood ingestion (to ca. 135% initial body length, or up to about 5h). Feeding activity resumed earlier in inflated than blood-fed bugs. These results suggest that artificial abdominal distension has an inhibitory effect on feeding but is not the sole mechanism in preventing further feeding.

  20. Radiologic findings of abdominal wall endometriosis

    Energy Technology Data Exchange (ETDEWEB)

    Seo, Jung Wook [Inje Univ. Ilsan Paik Hospital, Goyang (Korea, Republic of)

    2003-12-01

    To evaluate the imaging findings of abdominal wall endometriosis. In seven of 17 patients with surgically proven endometriosis of the abdominal wall, we retrospectively reviewed the findings of radiologic studies such as abdominal US (n=3), CT (n=4), and MRI (n=1). One patient under went more than one type of imaging, apparently. The surgical history of the seven, and their symptoms and preoperative diagnosis were reviewed, and the size, location, margin and nature of the mass, and the contrast enhancement patterns observed at radiologic studies, were assessed. The chief symptoms were palpable abdominal wall mass (n=5) and lower abdominal pain (n=2) around a surgical scar. Previous surgery included cesarean section (n=5), cesarean section with oophorectomy (n=1) and appendectomy (n=1). Masses were located in the subcutaneous fat layer (n=5) or rectus abdominis muscle (n=2), and their maximum diameter was 2.6 cm. Imaging findings, which correlated closely with the pathologic findings, included a well (n=5) or poorly marginated (n=2) solid mass, with a focal cystic area apparent in two cases. Although imaging findings of abdominal wall endometriosis may not be specific for diagnosis, the presence of a solid abdominal mass in female patients of reproductive age with a history of surgery is a diagnostic pointer.

  1. Traumatic abdominal hernia complicated by necrotizing fasciitis.

    Science.gov (United States)

    Martínez-Pérez, Aleix; Garrigós-Ortega, Gonzalo; Gómez-Abril, Segundo Ángel; Martí-Martínez, Eva; Torres-Sánchez, Teresa

    2014-11-01

    Necrotizing fasciitis is a critical illness involving skin and soft tissues, which may develop after blunt abdominal trauma causing abdominal wall hernia and representing a great challenge for physicians. A 52-year-old man was brought to the emergency department after a road accident, presenting blunt abdominal trauma with a large non-reducible mass in the lower-right abdomen. A first, CT showed abdominal hernia without signs of complication. Three hours after ICU admission, he developed hemodynamic instability. Therefore, a new CT scan was requested, showing signs of hernia complication. He was moved to the operating room where a complete transversal section of an ileal loop was identified. Five hours after surgery, he presented a new episode of hemodynamic instability with signs of skin and soft tissue infection. Due to the high clinical suspicion of necrotizing fasciitis development, wide debridement was performed. Following traumatic abdominal wall hernia (TAWH), patients can present unsuspected injuries in abdominal organs. Helical CT can be falsely negative in the early moments, leading to misdiagnosis. Necrotizing fasciitis is a potentially fatal infection and, consequently, resuscitation measures, wide-spectrum antibiotics, and early surgical debridement are required. This type of fasciitis can develop after blunt abdominal trauma following wall hernia without skin disruption.

  2. Protein dynamics: hydration and cavities

    Directory of Open Access Journals (Sweden)

    K. Heremans

    2005-08-01

    Full Text Available The temperature-pressure behavior of proteins seems to be unique among the biological macromolecules. Thermodynamic as well as kinetic data show the typical elliptical stability diagram. This may be extended by assuming that the unfolded state gives rise to volume and enthalpy-driven liquid-liquid transitions. A molecular interpretation follows from the temperature and the pressure dependence of the hydration and cavities. We suggest that positron annihilation spectroscopy can provide additional quantitative evidence for the contributions of cavities to the dynamics of proteins. Only mature amyloid fibrils that form from unfolded proteins are very resistant to pressure treatment.

  3. A micropillar for cavity optomechanics

    CERN Document Server

    Kuhn, A G; Ducloux, O; Chartier, C; Traon, O Le; Briant, T; Cohadon, P -F; Heidmann, A; Michel, C; Pinard, L; Flaminio, R

    2011-01-01

    We present a new micromechanical resonator designed for cavity optomechanics. We have used a micropillar geometry to obtain a high-frequency mechanical resonance with a low effective mass and a very high quality factor. We have coated a 60-$\\mu$m diameter low-loss dielectric mirror on top of the pillar and are planning to use this micromirror as part of a high-finesse Fabry-Perot cavity, to laser cool the resonator down to its quantum ground state and to monitor its quantum position fluctuations by quantum-limited optical interferometry.

  4. Management of intra-abdominal hypertension and abdominal compartment syndrome: a review

    Science.gov (United States)

    2014-01-01

    Patients in the intensive care unit (ICU) are at risk of developing of intra abdominal hypertension (IAH) and abdominal compartment syndrome (ACS). Aim: This review seeks to define IAH and ACS, identify the aetiology and presentation of IAH and ACS, identify IAP measurement techniques, identify current management and discuss the implications of IAH and ACS for nursing practice. A search of the electronic databases was supervised by a health librarian. The electronic data bases Cumulative Index of Nursing and Allied Health Literature (CINAHL); Medline, EMBASE, and the World Wide Web was undertaken from 1996- January 2011 using MeSH and key words which included but not limited to: abdominal compartment syndrome, intra -abdominal hypertension, intra-abdominal pressure in adult populations met the search criteria and were reviewed by three authors using a critical appraisal tool. Data derived from the retrieved material are discussed under the following themes: (1) etiology of intra-abdominal hypertension; (2) strategies for measuring intra-abdominal pressure (3) the manifestation of abdominal compartment syndrome; and (4) the importance of nursing assessment, observation and interventions. Intra-abdominal pressure (IAP) and abdominal compartment syndrome (ACS) have the potential to alter organ perfusion and compromise organ function. PMID:24499574

  5. Entanglement swapping between atom and cavity and generation of entangled state of cavity fields

    Institute of Scientific and Technical Information of China (English)

    Chen Ai-Xi; Deng Li

    2007-01-01

    This paper proposes a scheme where entanglement swapping between atom and cavity can be realized. A-type three-level atoms interacting resonantly with cavity field are considered. By detecting atom and cavity field, it realizes entanglement swapping between atom and cavity. It uses the technique of entanglement swapping to generate an entangled state of two cavity fields by measuring on atoms. It discusses the experimental feasibility of the proposed scheme and application of entangled state of cavity fields.

  6. [Abdominal tuberculosis in childhood: the clinical manifestations].

    Science.gov (United States)

    Rivera Medina, J; Almendras, M; Devoto, G; Martinez, E; Gonzales, J; Alarcón, P; Muñoz, S

    1993-01-01

    The authors reviewed the histories of 133 patients with abdominal tuberculosis in Instituto Nacional de Salud del Niño (Children's Hospital), Lima, Perú, between 1989 and 1991. We found morbidity higher in scholars (67.4%). Weight lost were present in all cases and malaise in 95.3%, abdominal distension in 83.72% and abdominal pain in 79.06%. Anaemia in 76.06%, ratio albumin/globulin were altered in 74.41% leukocytosis in 67.44%. Evidence of tuberculosis on chest X-ray were detected only in 62.5%.

  7. The relationship of abdominal fat mass assessed by helical or conventional computed tomography to serum leptin concentration.

    Science.gov (United States)

    Kobayashi, Junji; Sasaki, Takeyoshi; Watanabe, Mitsuyo

    2004-01-01

    In the present study, we focused on the relationship of intra-abdominal visceral fat (VF) or subcutaneous fat (SF) mass to serum leptin levels, and also on the relationship of leptin to serum lipid and lipoprotein concentration. Subjects with obesity (26 men, 26 women) were recruited for this study. We obtained helical CT scans with a tube current of 150 mA, voltage of 120 kV and 2:1 pitch (table speed in relation to slice thickness), starting at the upper edge of the liver and continuing to the pelvis. The intra-abdominal visceral fat (VF) volume was measured by drawing a line within the muscle wall surrounding the abdominal cavity. The abdominal SF volume was calculated by subtracting the VF volume from the total abdominal fat volume. By comparison, the abdominal VF and SF areas were determined at the umbilical level by the established slice-by-slice CT scanning technique. We found: 1) abdominal SF mass, either as volume or area, was a more important determinant of serum leptin than was VF mass; 2) among TC, TG, HDL-C and LDL-C, only TG had a positive correlation to serum leptin levels in men, whereas in women no lipid parameters had any relationship with leptin; and 3) VF mass had a positive correlation to serum TC and TG in men, whereas SF did not. The present study provides considerable evidence on the relationship between abdominal fat mass and serum leptin, and shows that the relationships between serum leptin and serum lipids and lipoproteins are not straightforward. We also suggest that fat area measured by conventional CT is a better indicator than its corresponding volume assessed by helical CT, based on the present results showing its closer association to serum lipids.

  8. On cavity modification of stimulated Raman scattering

    CERN Document Server

    Matsko, A B; Letargat, R J; Ilchenko, V S; Maleki, L

    2003-01-01

    We study theoretically stimulated Raman scattering (SRS) in a nonlinear dielectric microcavity and compare SRS thresholds for the cavity and the bulk material it is made of. We show that cavity SRS enhancement results solely from the intensity build up in the cavity and from the differences of the SRS dynamics in free and confined space. There is no significant modification of the Raman gain due to cavity QED effects. We show that the SRS threshold depends significantly on the nature of the dominating cavity decay as well as on the coupling technique with the cavity used for SRS measurements.

  9. [Churg-Strauss abdominal manifestation].

    Science.gov (United States)

    Suarez-Moreno, Roberto; Ponce-Pérez, Luis Virgilio; Margain-Paredes, Miguel Angel; Garza-de la Llave, Heriberto; Madrazo-Navarro, Mario; Espinosa-Álvarez, Arturo

    2014-01-01

    Antecedentes: la enfermedad de Churg-Strauss es poco común, idiopática, caracterizada por hipereosinofilia en sangre y tejidos, aunada a vasculitis sistémica en pacientes con antecedentes de asma o rinitis alérgica. Las manifestaciones gastrointestinales del síndrome de Churg Strauss se caracterizan por dolor abdominal, seguido de diarrea y hemorragia en 31-45% de los casos. Caso clínico: paciente masculino con antecedente de asma que acudió a consulta por abdomen agudo con probable apendicitis aguda; durante el protocolo de estudio se diagnosticó síndrome de Churg Strauss, con manifestaciones intestinales. Conclusión: el síndrome de Churg Strauss es una vasculitis poco frecuente que puede manifestarse con síntomas intestinales, como en este caso; es importante tenerlo en mente a la hora de los diagnósticos diferenciales. Existen pocos reportes con este síndrome asociado con abdomen agudo, todos ellos con mal pronóstico.

  10. A STUDY OF FERRITE CAVITY.

    Energy Technology Data Exchange (ETDEWEB)

    ZHAO, Y.

    2002-04-19

    This note addresses the general concerns for the design of a ferrite cavity. The parameters are specified for the RCMS, for which the frequency ramp is in the range of 1.27 MHz to 6.44 MHz, or a ratio of 1:5.

  11. Droplet based cavities and lasers

    DEFF Research Database (Denmark)

    Mølhave, Kristian; Kristensen, Anders; Mortensen, Asger

    2009-01-01

    The self-organized and molecularly smooth surface on liquid microdroplets makes them attractive as optical cavities with very high quality factors. This chapter describes the basic theory of optical modes in spherical droplets. The mechanical properties including vibrational excitation are also d...

  12. A 200 MHz prebunching cavity

    CERN Multimedia

    1977-01-01

    This cavity was installed in the PS ring and proved very efficient in providing a modulation on the PS beam before it is injected into the SPS machine. Moreover it allowed longitudinal instabilities studies at high intensities. Roberto Cappi stands on the left.

  13. "Grinding" cavities in polyurethane foam

    Science.gov (United States)

    Brower, J. R.; Davey, R. E.; Dixon, W. F.; Robb, P. H.; Zebus, P. P.

    1980-01-01

    Grinding tool installed on conventional milling machine cuts precise cavities in foam blocks. Method is well suited for prototype or midsize production runs and can be adapted to computer control for mass production. Method saves time and materials compared to bonding or hot wire techniques.

  14. Hybrid Vertical-Cavity Laser

    DEFF Research Database (Denmark)

    2010-01-01

    The present invention provides a light source (2) for light circuits on a silicon platform (3). A vertical laser cavity is formed by a gain region (101) arranged between a top mirror (4) and a bottom grating-mirror (12) in a grating region (11) in a silicon layer (10) on a substrate. A waveguide...

  15. Cavity length below chute aerators

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    It is proved that air entrainment is one of the efficient measures dealing with cavi-tation control for the release works of hydropower projects. There are many factors to be considered in designing a chute aerator. One of the most important factors concerns the cavity length below the aerator,which has outstanding effects on air entrainment against cavitation damage. It is crucial to determine reasonable emergence angle for the calculation of the cavity length. In the present paper the overall effects of structural and hydraulic parameters on the emergence angle of the flow from the aerator were analyzed. Four improved expressions of the emer-gence angle with weight coefficient were investigated through experimental data of 68 points observed from 12 aerators of 6 hydropower projects,of both model and prototype,on the basis of error theory. A method to calculate the cavity length be-low aerators was suggested,which considers overall effects of the above men-tioned parameters. Comparison between the method in this paper and the other five methods of calculating the cavity length showed that the present method is much more reliable than the existing methods while the mean error of the method is less than others.

  16. Cavity length below chute aerators

    Institute of Scientific and Technical Information of China (English)

    WU JianHua; RUAN ShiPing

    2008-01-01

    It is proved that air entrainment is one of the efficient measures dealing with cavitation control for the release works of hydropower projects. There are many factors to be considered in designing a chute aerator. One of the most important factors concerns the cavity length below the aerator, which has outstanding effects on air entrainment against cavitation damage. It is crucial to determine reasonable emergence angle for the calculation of the cavity length. In the present paper the overall effects of structural and hydraulic parameters on the emergence angle of the flow from the aerator were analyzed. Four improved expressions of the emergence angle with weight coefficient were investigated through experimental data of 68 points observed from 12 aerators of 6 hydropower projects, of both model and prototype, on the basis of error theory. A method to calculate the cavity length below aerators was suggested, which considers overall effects of the above mentioned parameters. Comparison between the method in this paper and the other five methods of calculating the cavity length showed that the present method is much more reliable than the existing methods while the mean error of the method is less than others.

  17. Abdominal binders may reduce pain and improve physical function after major abdominal surgery - a systematic review

    DEFF Research Database (Denmark)

    Rothman, Josephine Philip; Gunnarsson, Ulf; Bisgaard, Thue

    2014-01-01

    INTRODUCTION: Evidence for the effect of post-operative abdominal binders on post-operative pain, seroma formation, physical function, pulmonary function and increased intra-abdominal pressure among patients after surgery remains largely un-investigated. METHODS: A systematic review was conducted....... The PubMed, EMBASE and Cochrane databases were searched for studies on the use of abdominal binders after abdominal surgery or abdominoplasty. All types of clinical studies were included. Two independent assessors evaluated the scientific quality of the studies. The primary outcomes were pain, seroma...... to reduce seroma formation after laparoscopic ventral herniotomy and a non-significant reduction in pain. Physical function was improved, whereas evidence supports a beneficial effect on psychological distress after open abdominal surgery. Evidence also supports that intra-abdominal pressure increases...

  18. Pancreatic insufficiency secondary to abdominal radiotherapy

    Energy Technology Data Exchange (ETDEWEB)

    Dookeran, K.A.; Thompson, M.M.; Allum, W.H. (Leicester Royal Infirmary (United Kingdom). Dept. of Surgery)

    1993-02-01

    Delayed post-irradiation steatorrhoea secondary to acute pancreatic insufficiency is rare. The authors describe a case occurring in a patient 23 years following radical abdominal radiotherapy for testicular seminoma. (Author).

  19. Abdominal pain - children under age 12

    Science.gov (United States)

    Stomach pain in children; Pain - abdomen - children; Abdominal cramps in children; Belly ache in children ... belly Has had a recent injury to the abdomen Is having trouble breathing Call your provider if ...

  20. [Inflammatory aneurysms of the abdominal aorta].

    Science.gov (United States)

    Tovar Martín, E; Acea Nebril, B

    1993-01-01

    Approximately 10 per cent of abdominal aneurysms have an excessively thick wall that sometimes involve duodenum, cava or colon by an inflammatory process. Between February 1986 and December 1992, 147 patients with abdominal aortic aneurysm (AAA) were treated surgically and in 13 (8.8%) the aneurysms were found to be inflammatory. Their mean age was 67.3 years (70.1 years in non inflammatory group) and all were symptomatics initially (abdominal pain in 53%, rupture in 23%, mass in 15%). The operative mortality for elective resection was 37% in patients with inflammatory abdominal aortic aneurysms (IAAA) decreasing to 9% in the AAA group without inflammatory involvement. We conclude that surgery is indicated in these patients to prevent rupture and to hasten the subsidense of inflammatory process ever with postoperative morbi-mortality increased.

  1. Isolated gallbladder rupture following blunt abdominal trauma

    African Journals Online (AJOL)

    2011-11-03

    Nov 3, 2011 ... partially embedded in the liver substance, cushioned by ... abdominal pains and abrasions on his left hypochondrial region for which he was ... and usually associated with other visceral injuries. Isolated ... teased out Figure 2.

  2. Abdominal separation in an adult male patient with acute abdominal pain

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    We report a male patient with prolonged post-prandial abdominal distension and a sudden onset of epigastric pain initially diagnosed as acute abdomen. The patient had no history of surgery. Physical examination revealed peritonitis and abdominal computed tomography scan showed upper abdominal mesentery intorsion. The patient then underwent surgical intervention. It was found that the descending mesocolon dorsal root was connected to the ascending colon and formed a membrane encapsulating the small intestine...

  3. Abdominal Wall Hernias: Various Imaging Features Correlated with the Anatomy of Abdominal Wall at MDCT

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Shin Young; Shin, Hyeong Cheol; Kim, Sang Won; Kim, Il Young; Kim, Young Tong [Soonchunhyang University Cheonan Hospital, Cheonan (Korea, Republic of)

    2009-07-15

    Abdominal wall hernias are a common condition. However, they may develop acute complications and require surgical correction in most cases. Hence, the correct radiological examination is requisite for an accurate diagnosis. A multi-detector row CT (MDCT) provides an accurate identification of the anatomy of the abdominal wall, precise hernia type, and helps in the detection of early signs of complication. We report various imaging features of abdominal wall hernias via a MDCT.

  4. MR imaging of abdominal mass in children

    Energy Technology Data Exchange (ETDEWEB)

    Araki, Tsutomu [Yamanashi Medical Univ., Tamaho (Japan)

    1995-12-01

    In order to evaluate the usefulness of MR imaging in the diagnosis of abdominal mass in children, we compared MR imaging with CT in 33 children who had undergone both examinations. Although MR imaging was less specific to calcification, gas and fat, it was more specific to hematoma and clarified the extension of tumors more precisely than CT. MRI seems to be a promising diagnostic modality for pediatric abdominal masses. (author).

  5. A focus on intra-abdominal infections

    Directory of Open Access Journals (Sweden)

    Sartelli Massimo

    2010-03-01

    Full Text Available Abstract Complicated intra-abdominal infections are an important cause of morbidity and are frequently associated with poor prognosis, particularly in higher risk patients. Well defined evidence-based recommendations for intra-abdominal infections treatment are partially lacking because of the limited number of randomized-controlled trials. Factors consistently associated with poor outcomes in patients with intra-abdominal infections include increased illness severity, failed source control, inadequate empiric antimicrobial therapy and healthcare-acquired infection. Early prognostic evaluation of complicated intra-abdominal infections is important to select high-risk patients for more aggressive therapeutic procedures. The cornerstones in the management of complicated intra-abdominal infections are both source control and antibiotic therapy. The timing and the adequacy of source control are the most important issues in the management of intra-abdominal infections, because inadequate and late control of septic source may have a negative effect on the outcomes. Recent advances in interventional and more aggressive techniques could significantly decrease the morbidity and mortality of physiologically severe complicated intra-abdominal infections, even if these are still being debated and are yet not validated by limited prospective trials. Empiric antimicrobial therapy is nevertheless important in the overall management of intra-abdominal infections. Inappropriate antibiotic therapy may result in poor patient outcomes and in the appearance of bacterial resistance. Antimicrobial management is generally standardised and many regimens, either with monotherapy or combination therapy, have proven their efficacy. Routine coverage especially against Enterococci and candida spp is not always recommended, but can be useful in particular clinical conditions. A de escalation approach may be recommended in patients with specific risk factors for multidrug

  6. [Late primary abdominal pregnancy. Case report].

    Science.gov (United States)

    Farías, Emigdio Torres; Gómez, Luis Guillermo Torres; Allegre, René Márquez; Higareda, Salvador Hernández

    2008-09-01

    Abdominal advanced pregnancy is an obstetric complication that put at risk maternal and fetal life. We report a case of advanced abdominal pregnancy with intact ovaries and fallopian tubes, without ureteroperitoneal fistulae and, late prenatal diagnosis, in a multiparous patient without risk factors, with alive newborn, and whose pregnancy was attended at Unidad Medica de Alta Especialidad, Hospital de Gineco-Obstetricia, Centro Medico Nacional de Occidente del IMSS, Guadalajara, Jalisco, México.

  7. Surveillance intervals for small abdominal aortic aneurysms

    DEFF Research Database (Denmark)

    Bown, Matthew J; Sweeting, Michael J; Brown, Louise C

    2013-01-01

    Small abdominal aortic aneurysms (AAAs [3.0 cm-5.4 cm in diameter]) are monitored by ultrasound surveillance. The intervals between surveillance scans should be chosen to detect an expanding aneurysm prior to rupture.......Small abdominal aortic aneurysms (AAAs [3.0 cm-5.4 cm in diameter]) are monitored by ultrasound surveillance. The intervals between surveillance scans should be chosen to detect an expanding aneurysm prior to rupture....

  8. Abdominal epilepsy and foreign body in the abdomen--dilemma in diagnosis of abdominal pain.

    Science.gov (United States)

    Topno, Noor; Gopasetty, Mahesh S; Kudva, Annappa; B, Lokesh

    2005-12-31

    There are many medical causes of abdominal pain; abdominal epilepsy is one of the rarer causes. It is a form of temporal lobe epilepsy presenting with abdominal aura. Temporal lobe epilepsy is often idiopathic, however it may be associated with mesial temporal lobe sclerosis, dysembryoplastic neuroepithelial tumors and other benign tumors, arterio-venous malformations, gliomas, neuronal migration defects or gliotic damage as a result of encephalitis. When associated with anatomical abnormality, abdominal epilepsy is difficult to control with medication alone. In such cases, appropriate neurosurgery can provide a cure or, at least, make this condition easier to treat with medication. Once all known intra-abdominal causes have been ruled out, many cases of abdominal pain are dubbed as functional. If clinicians are not aware of abdominal epilepsy, this diagnosis is easily missed, resulting in inappropriate treatment. We present a case report of a middle aged woman presenting with abdominal pain and episodes of unconsciousness. On evaluation she was found to have an intra-abdominal foreign body (needle). Nevertheless, the presence of this entity was insufficient to explain her episodes of unconsciousness. On detailed analysis of her medical history and after appropriate investigations, she was diagnosed with temporal lobe epilepsy which was treated with appropriate medications, and which resulted in her pain being relieved.

  9. Hérnia traumática da parede abdominal Traumatic abdominal hernia

    Directory of Open Access Journals (Sweden)

    Alexandre Cruz Henriques

    1999-10-01

    Full Text Available A rare case of blunt traumatic abdominal hernia is presented in which jejunal loops herniated through the abdominal wall. The patient had a serious motor vehicle accident seven years ago, while wearing the seat belt. He developed a traumatic hernia in the anterior lateral abdominal wall, which was operated, and relapsed after some months. The patient was reoperated and we observed the unattachment of the anterior lateral abdominal musculature from the ilium crest. After the hernial sac treatment, the defect was solved with the use of a polypropylene mesh. The postoperative evolution was good and four months later there were no signs of recurrence. Traumatic abdominal hernia remains a rare clinical entity, despite the increase in blunt abdominal trauma. Traumatic abdominal wall hernia falls into two general categories: small lower quadrant abdominal defects, typically the result of blunt trauma with bicycle handlebars, and larger abdominal wall defects related to motor vehicle accidents. The diagnosis may be often established by the physical examination alone. Conventional radiology and computerized tomography usefulness have been proved. In the vast majority of cases, early repair is recommended. The appropriate treatment is the reduction of the herniated bowel into the abdomen, the debridment of nonviable tissues, and a primary tension free closure of the detect.

  10. The probable significance of tracheal tufts in the 8th abdominal segment of Heliothis virescens (F.) on the development of its parasitoid, Toxoneuron nigriceps (Viereck).

    Science.gov (United States)

    Rao, Asha; Henderson, Ruth E; Bradleigh Vinson, S

    2009-09-01

    The 8th abdominal segment of Heliothis virescens (Fabricius) larvae contains aerating trachea and tracheole tufts that end in the hemocoel of the 8th segment, unlike the tracheae that invade tissues in other segments. These tracheal tufts from the 8th abdominal segment extend to the tokus region, which along with the telson cavity is known to act as a "lung" for hemocytes in Calpodes ethlius and a few other lepidopteran larvae. The goal of this research was to study the effects of these tracheal tufts in the 8th abdominal segment on parasitoid development inside the host larvae, H. virescens. The first objective was to determine if the eggs of the parasitoid, Toxoneuron nigriceps, are predominantly located among the tracheal tufts of the 8th abdominal segment compared to other body cavity regions irrespective of their oviposition site or the position of the host larvae. The results showed that several hours after oviposition most of the eggs are found in the 8th abdominal segment irrespective of the oviposition site or the position of the host larvae. The second objective was to study the effect of varying oxygen concentrations in vitro on various developmental stages of the egg. The results showed that decreasing oxygen concentrations adversely affects the parasitoid egg development in vitro. A third objective was to determine the oxygen concentration in 8th abdominal segment of the host larvae and compare it to other regions of the body using an oxygen sensor placed in vivo. The results suggested relatively high concentration of oxygen in the 8th abdominal segment compared to other regions of the host, thus supporting our hypothesis that the increased oxygen level in the 8th abdominal segment is important to the development of the parasitoid eggs.

  11. Plaster body wrap: effects on abdominal fat.

    Science.gov (United States)

    Santos Moreira, Juliana; Melo, Ana Sofia Carneiro Pinto de; Noites, Andreia; Couto, Miriam Faria; Melo, Cristina Argel de; Adubeiro, Nuno Carvalho Freire de Almeida

    2013-12-01

    Abdominal fat is associated with metabolic disorders, leading to cardiovascular risk factors and numerous diseases. This study aimed to analyze the effect of plaster body wrap in combination with aerobic exercise on abdominal fat. Nineteen female volunteers were randomly divided into intervention group (IG; n = 10) performing aerobic exercise with plaster body wrap, and control group (CG; n = 9) performing only exercise. Subcutaneous and visceral fat were measured using ultrasound; subcutaneous fat was also estimated on analysis of skinfolds and abdominal perimeters. At the end of the 10-sessions protocol, the IG demonstrated a significant decrease (p ≤ 0.05) in subcutaneous fat at the left anterior superior iliac spine (ASIS) level and in iliac crest perimeter measurements. A large intervention effect size strength (0.80) was found in subcutaneous fat below the navel and a moderate effect size strength on the vertical abdominal skinfold (0.62) and the perimeter of the most prominent abdominal point (0.57). Comparing the initial and final data of each group, the IG showed a significant decrease in numerous variables including visceral and subcutaneous fat above and below the navel measured by ultrasound (p ≤ 0.05). Plaster body wrap in combination with aerobic exercise seems to be effective for abdominal fat reduction.

  12. 21 CFR 872.3260 - Cavity varnish.

    Science.gov (United States)

    2010-04-01

    ... DENTAL DEVICES Prosthetic Devices § 872.3260 Cavity varnish. (a) Identification. Cavity varnish is a... restorative materials. The device is intended to prevent penetration of restorative materials, such as...

  13. Cavity QED experiments with ion Coulomb crystals

    DEFF Research Database (Denmark)

    Herskind, Peter Fønss; Dantan, Aurélien; Marler, Joan

    2009-01-01

    Cavity QED experimental results demonstrating collective strong coupling between ensembles of atomic ions cooled into Coulomb crystals and optical cavity fields have been achieved. Collective Zeeman coherence times of milliseconds have furthermore been obtained....

  14. Cavity QED experiments with ion Coulomb crystals

    DEFF Research Database (Denmark)

    Herskind, Peter Fønss; Dantan, Aurélien; Marler, Joan

    2009-01-01

    Cavity QED experimental results demonstrating collective strong coupling between ensembles of atomic ions cooled into Coulomb crystals and optical cavity fields have been achieved. Collective Zeeman coherence times of milliseconds have furthermore been obtained.......Cavity QED experimental results demonstrating collective strong coupling between ensembles of atomic ions cooled into Coulomb crystals and optical cavity fields have been achieved. Collective Zeeman coherence times of milliseconds have furthermore been obtained....

  15. Prototype storage cavity for LEP accelerating RF

    CERN Multimedia

    1980-01-01

    The principle of an RF storage cavity was demonstrated with this prototype, working at 500 MHz. Ian Wilso seems to hold it in his hands. The storage cavities had 4 portholes, 1 each for: RF feed; tuning; connection to the accelerating cavity; vacuum pump. The final storage cavities were larger, to suit the lower LEP accelerating frequency of 352.2 MHz. See also 8002294, 8006510X, 8109346, 8407619X, and Annual Report 1980, p.115.

  16. Theory and technology for superconducting cavities

    CERN Document Server

    Lengeler, Herbert

    1993-01-01

    The course will address Physicist and Engineers who are newcomers in the field of accelerators and accelerating cavities. The elements of RF-Superconductivity will be presented with special relevance to accelerating cavities. The present ststus of achievable accelerating fields and RF losses will be given and their link to the special technologies for cavity fabrication and surface treatments will be stressed. Cavity auxiliaries like main couplers, higher order mode couplers and frequency tuners will be described.

  17. A prospective, controlled evaluation of the abdominal reapproximation anchor abdominal wall closure system in combination with VAC therapy compared with VAC alone in the management of an open abdomen.

    Science.gov (United States)

    Long, Kristin L; Hamilton, David A; Davenport, Daniel L; Bernard, Andrew C; Kearney, Paul A; Chang, Phillip K

    2014-06-01

    Dramatic increases in damage control and decompressive laparotomies and a significant increase in patients with open abdominal cavities have resulted in numerous techniques to facilitate fascial closure. We hypothesized addition of the abdominal reapproximation anchor system (ABRA) to the KCI Abdominal Wound Vac™ (VAC) or KCI ABThera™ would increase successful primary closure rates and reduce operative costs. Fourteen patients with open abdomens were prospectively randomized into a control group using VAC alone (control) or a study group using VAC plus ABRA (VAC-ABRA). All patients underwent regular VAC changes; patients receiving VAC-ABRA also underwent concomitant daily elastomer adjustment of the ABRA system. Primary end points included abdominal closure, number of operating room (OR) visits, and OR time use. Eight patients were included in the VAC-ABRA group and six patients in the control group. Primary closure rates between groups were not statistically different; however, the number of trips to the OR and OR time use were different. Despite higher Acute Physiology and Chronic Health Evaluation II scores, larger starting wound size, and higher rates of abdominal compartment syndrome, closure rates in the VAC-ABRA group were similar to VAC alone. Importantly, however, fewer OR trips and less OR time were required for the VAC-ABRA group.

  18. Digital Cavities and Their Potential Applications

    CERN Document Server

    Karki, Khadga; Widom, Julia R; Marcus, Andrew H; Pullerits, Tonu

    2013-01-01

    The concept of a digital cavity is presented. The functionality of a tunable radio-frequency/microwave cavity with unrestricted Q-factor is implemented. The theoretical aspects of the cavity and its potential applications in high resolution spectroscopy and synchronization of clocks together with examples in signal processing and data acquisition are discussed.

  19. Diagram of a LEP superconducting cavity

    CERN Multimedia

    1991-01-01

    This diagram gives a schematic representation of the superconducting radio-frequency cavities at LEP. Liquid helium is used to cool the cavity to 4.5 degrees above absolute zero so that very high electric fields can be produced, increasing the operating energy of the accelerator. Superconducting cavities were used only in the LEP-2 phase of the accelerator, from 1996 to 2000.

  20. Power coupler for the ILC crab cavity

    Energy Technology Data Exchange (ETDEWEB)

    Burt, G.; Dexter, A.; Jenkins, R.; /Lancaster U.; Beard, C.; Goudket, P.; McIntosh, P.A.; /Daresbury; Bellantoni, Leo; /Fermilab

    2007-06-01

    The ILC crab cavity will require the design of an appropriate power coupler. The beam-loading in dipole mode cavities is considerably more variable than accelerating cavities, hence simulations have been performed to establish the required external Q. Simulations of a suitable coupler were then performed and were verified using a normal conducting prototype with variable coupler tips.

  1. Does the availability of artificial cavities affect cavity excavation rates in red-cockaded woodpeckers?

    Science.gov (United States)

    Richard N. Conner; Daniel Saenz; D. Craig Rudolph; Richard R. Schaefer

    2002-01-01

    Rates of cavity excavation by Red-cockaded Woodpeckers (Picoides borealis) were examined from 1983 to 1999 on the Angelina National Forest in east Texas. We compared the rare of natural cavity excavation between 1983 and 1990 (before artificial cavities were available) with the rate of cavity excavation between 1992 and 1993, a period when...

  2. Tumorigenicity of cellulose fibers injected into the rat peritoneal cavity.

    Science.gov (United States)

    Cullen, R T; Miller, B G; Clark, S; Davis, J M G

    2002-07-01

    Cellulose fibers, along with many other organic fibers, are durable. Therefore, if inhaled, they have the potential to persist within the lung, and may then cause disease. Here we report the effects of injecting high-purity cellulose fibers into the abdominal cavity of rats. A respirable fraction of cellulose fiber was collected from an aerosol of a thermo-mechanically-processed wood pulp. A sample of respirable crocidolite asbestos, known to produce mesotheliomas in rats, was used as a positive control. Total doses of 10(6), 10(7), 10(8), or 10(9) WHO fibers were injected intraperitoneally as 3 weekly aliquots. A negative control was provided by phosphate-buffered saline used to suspend the fibers for injection. There were 50 rats per treatment group except for the 10(8) and 10(9) fibers crocidolite groups which were reduced to 26 rats because of the expectation of high tumor incidence in these groups. The two higher doses of crocidolite asbestos caused greatly reduced survival compared to the saline controls. With cellulose there was a much less marked effect on survival. In the highest dose cellulose group, multiple large nodules (granulomas) and widespread adhesions (bands of new tissue connecting organs to each other and to the abdominal wall) were present in all animals. Granulomas were not observed in the 10(9) fibers crocidolite group. More than 80% of animals in the 10(8) and 10(9) crocidolite asbestos groups had mesotheliomas, a type of tumor sometimes observed in people exposed to asbestos. In contrast, there were only 2 animals in the cellulose groups with mesothelioma tumors, 1 in the 10(7) and 1 in the 10(8) groups. However, 9 (18%) of the 10(9) cellulose group had malignant tumors that, in contrast to the usual pattern of mesothelioma development following treatment with mineral fibers in rats, showed no obvious involvement of mesothelial tissues, were not associated with blood-stained ascites fluid, and were thus classified as sarcomas. This study

  3. Cavity Voltage Phase Modulation MD

    CERN Document Server

    Mastoridis, Themistoklis; Molendijk, John; Timko, Helga; CERN. Geneva. ATS Department

    2016-01-01

    The LHC RF/LLRF system is currently configured for extremely stable RF voltage to minimize transient beam loading effects. The present scheme cannot be extended beyond nominal beam current since the demanded power would exceed the peak klystron power and lead to saturation. A new scheme has therefore been proposed: for beam currents above nominal (and possibly earlier), the cavity phase modulation by the beam will not be corrected (transient beam loading), but the strong RF feedback and One-Turn Delay feedback will still be active for loop and beam stability in physics. To achieve this, the voltage set point will be adapted for each bunch. The goal of this MD was to test a new algorithm that would adjust the voltage set point to achieve the cavity phase modulation that would minimize klystron forward power.

  4. A micropillar for cavity optomechanics

    Energy Technology Data Exchange (ETDEWEB)

    Kuhn, Aurélien; Neuhaus, Leonhard; Deléglise, Samuel; Briant, Tristan; Cohadon, Pierre-François; Heidmann, Antoine [Laboratoire Kastler Brossel, UPMC-ENS-CNRS, Paris (France); Van Brackel, Emmanuel [Département de Physique, ENS, Paris (France); Chartier, Claude; Ducloux, Olivier; Le Traon, Olivier [Département Mesures Physiques, ONERA, Châtillon (France); Michel, Christophe; Pinard, Laurent; Flaminio, Raffaele [Laboratoire des Matériaux Avancés, IN2P3-CNRS, Lyon (France)

    2014-12-04

    Demonstrating the quantum ground state of a macroscopic mechanical object is a major experimental challenge in physics, at the origin of the rapid emergence of cavity optomechanics. We have developed a new generation of optomechanical devices, based on a microgram quartz micropillar with a very high mechanical quality factor. The structure is used as end mirror in a Fabry-Perot cavity with a high optical finesse, leading to ultra-sensitive interferometric measurement of the resonator displacement. We expect to reach the ground state of this optomechanical resonator by combining cryogenic cooling in a dilution fridge at 30 mK and radiation-pressure cooling. We have already carried out a quantum-limited measurement of the micropillar thermal noise at low temperature.

  5. Spontaneous Photon Emission in Cavities

    Directory of Open Access Journals (Sweden)

    Alber G.

    2014-01-01

    Full Text Available We investigate spontaneous photon emission processes of two-level atoms in parabolic and ellipsoidal cavities thereby taking into account the full multimode scenario. In particular, we calculate the excitation probabilities of the atoms and the energy density of the resulting few-photon electromagnetic radiation field by using semiclassical methods for the description of the multimode scenario. Based on this approach photon path representations are developed for relevant transition probability amplitudes which are valid in the optical frequency regime where the dipole and the rotating-wave approximations apply. Comparisons with numerical results demonstrate the quality of these semiclassical results even in cases in which the wave length of a spontaneously emitted photon becomes comparable or even larger than characteristic length scales of the cavity. This is the dynamical regime in which diffraction effects become important so that geometric optical considerations are typically not applicable.

  6. Dissipative structures in optomechanical cavities

    Science.gov (United States)

    Ruiz-Rivas, Joaquín; Navarrete-Benlloch, Carlos; Patera, Giuseppe; Roldán, Eugenio; de Valcárcel, Germán J.

    2016-03-01

    Motivated by the increasing interest in the properties of multimode optomechanical devices, here we study a system in which a driven longitudinal mode of a large-area optical cavity is dispersively coupled to a deformable mechanical element. Two different models naturally appear in such scenario, for which we predict the formation of periodic patterns, localized structures (cavity solitons), and domain walls, among other complex nonlinear phenomena. Further, we propose a realistic design based on intracavity membranes where our models can be studied experimentally. Apart from its relevance to the field of nonlinear optics, the results put forward here are a necessary step towards understanding the quantum properties of optomechanical systems in the multimode regime of both the optical and the mechanical degrees of freedom.

  7. Retention proposal in complex cavities.

    Directory of Open Access Journals (Sweden)

    Pedro Alvarez Rodríguez

    2003-12-01

    Full Text Available Background: Dental Operatory is the main structure in which Odontology lies. It is not an easy discipline that gives enjoyable results with little effort due to the difficulties that a correct reconstruction of a destroyed dental element offers.The frequency with which pulpar injury occurs while anchoring additional retainers in complex cavities, the technical difficulties the lack of these devices cause and the need to simplify dental procedures lead this study to show the advantages to substitute additional retainers for a retainer surcus. Method: An observational descriptive study was applied to 53 patients(42% of the universe , sample which was selected by means of a simple randomized sample . From a proximal-occlusal cavity, the preparations were extended in a box-like shape towards the bucal or lingual region and the additional retainers were substituted for a surcus which was performed in the gingival wall of the preparation. Calcium Hydroxide of rapid dryness was used as a cavity cover and Policarboxilate cement as a base; then the amalgam restoration was performed. The number of restorations were studied taking into account the patient´s age and the failures due to fractures of amalgam, loss of vitality and periapical changes were assessed taking into consideration the patient´s age and a one- year follow up. Results: Most of the amalgam restorations were performed in patients aged from 35 to 59 years and the relative frequencies due to fractures of amalgam, loss of vitality and periapical changes were very low. Conclusion: The substitution of additional retainers for a retainer surcus in complex cavities of vital molars showed to be advantageous because it guarantees a less degree of pulpar damage and less pulpar damage.

  8. Optomechanic interactions in phoxonic cavities

    Directory of Open Access Journals (Sweden)

    Bahram Djafari-Rouhani

    2014-12-01

    Full Text Available Phoxonic crystals are periodic structures exhibiting simultaneous phononic and photonic band gaps, thus allowing the confinement of both excitations in the same cavity. The phonon-photon interaction can be enhanced due to the overlap of both waves in the cavity. In this paper, we discuss some of our recent theoretical works on the strength of the optomechanic coupling, based on both photoelastic and moving interfaces mechanisms, in different (2D, slabs, strips phoxonic crystals cavities. The cases of two-dimensional infinite and slab structures will enable us to mention the important role of the symmetry and degeneracy of the modes, as well as the role of the materials whose photoelastic constants can be wavelength dependent. Depending on the phonon-photon pair, the photoelastic and moving interface mechanisms can contribute in phase or out-of-phase. Then, the main part of the paper will be devoted to the optomechanic interaction in a corrugated nanobeam waveguide exhibiting dual phononic/photonic band gaps. Such structures can provide photonic modes with very high quality factor, high frequency phononic modes of a few GHz inside a gap and optomechanical coupling rate reaching a few MHz.

  9. Angioleiomyoma of the Nasal Cavity

    Directory of Open Access Journals (Sweden)

    Arruda, Milena Moreira

    2014-01-01

    Full Text Available Introduction Vascular leiomyoma of the nasal cavity is an extremely rare tumor that represents less than 1% of all vascular leiomyomas. It is more prevalent in women between the fourth and sixth decades, reaching primarily the inferior nasal turbinates. Objectives Reporting and assisting the systematization of more accurate diagnostic methods in clinical and complementary investigation of vascular leiomyoma in the nasal cavity. Resumed Report We present the case of a 49-year-old woman diagnosed with vascular leiomyoma in the nasal cavity, which manifested mainly with nasal obstruction. During investigation, computer tomography was not diagnostic, the cytologic study was not conclusive, and according to the biopsy, it was a squamous papilloma. Conclusion We suggest that the technical difficulty in obtaining an adequate amount of material for preoperative biopsy, associated with the topography of the lesion in the vestibular nasal region, may have contributed to changing the postoperative diagnosis. Thus, pathologic study of the surgical fragment is the more accurate method for diagnosis.

  10. Angioleiomyoma of the Nasal Cavity

    Science.gov (United States)

    Arruda, Milena Moreira; Monteiro, Daniela Yasbek; Fernandes, Atilio Maximino; Menegatti, Vanessa; Thomazzi, Emerson; Hubner, Ricardo Arthur; Lima, Luiz Guilherme Cernaglia Aureliano de

    2014-01-01

    Introduction Vascular leiomyoma of the nasal cavity is an extremely rare tumor that represents less than 1% of all vascular leiomyomas. It is more prevalent in women between the fourth and sixth decades, reaching primarily the inferior nasal turbinates. Objectives Reporting and assisting the systematization of more accurate diagnostic methods in clinical and complementary investigation of vascular leiomyoma in the nasal cavity. Resumed Report We present the case of a 49-year-old woman diagnosed with vascular leiomyoma in the nasal cavity, which manifested mainly with nasal obstruction. During investigation, computer tomography was not diagnostic, the cytologic study was not conclusive, and according to the biopsy, it was a squamous papilloma. Conclusion We suggest that the technical difficulty in obtaining an adequate amount of material for preoperative biopsy, associated with the topography of the lesion in the vestibular nasal region, may have contributed to changing the postoperative diagnosis. Thus, pathologic study of the surgical fragment is the more accurate method for diagnosis. PMID:25992133

  11. Optomechanic interactions in phoxonic cavities

    Energy Technology Data Exchange (ETDEWEB)

    Djafari-Rouhani, Bahram; Oudich, Mourad; Pennec, Yan [Institut d’Electronique, de Microélectronique et de Nanotechnologie (IEMN), UMR CNRS 8520, UFR de physique, Université Lille1, Cité Scientifique, 59652, Villeneuve d’Ascq (France); El-Jallal, Said [Institut d’Electronique, de Microélectronique et de Nanotechnologie (IEMN), UMR CNRS 8520, UFR de physique, Université Lille1, Cité Scientifique, 59652, Villeneuve d’Ascq (France); Physique du Rayonnement et de l’Interaction Laser Matière, Faculté des sciences, Université de Moulay Ismail, Meknès (Morocco)

    2014-12-15

    Phoxonic crystals are periodic structures exhibiting simultaneous phononic and photonic band gaps, thus allowing the confinement of both excitations in the same cavity. The phonon-photon interaction can be enhanced due to the overlap of both waves in the cavity. In this paper, we discuss some of our recent theoretical works on the strength of the optomechanic coupling, based on both photoelastic and moving interfaces mechanisms, in different (2D, slabs, strips) phoxonic crystals cavities. The cases of two-dimensional infinite and slab structures will enable us to mention the important role of the symmetry and degeneracy of the modes, as well as the role of the materials whose photoelastic constants can be wavelength dependent. Depending on the phonon-photon pair, the photoelastic and moving interface mechanisms can contribute in phase or out-of-phase. Then, the main part of the paper will be devoted to the optomechanic interaction in a corrugated nanobeam waveguide exhibiting dual phononic/photonic band gaps. Such structures can provide photonic modes with very high quality factor, high frequency phononic modes of a few GHz inside a gap and optomechanical coupling rate reaching a few MHz.

  12. Effect of Whole-abdominal Irradiation on Penetration Depth of Doxorubicin in Normal Tissue After Pressurized Intraperitoneal Aerosol Chemotherapy (PIPAC) in a Post-mortem Swine Model.

    Science.gov (United States)

    Khosrawipour, Veria; Khosrawipour, Tanja; Hedayat-Pour, Yousef; Diaz-Carballo, David; Bellendorf, Alexander; Böse-Ribeiro, Hugo; Mücke, Ralph; Mohanaraja, Nirushika; Adamietz, Irenäus Anton; Fakhrian, Khashayar

    2017-04-01

    This study was performed to evaluate the impact of whole-abdominal irradiation on local penetration of doxorubicin into the peritoneum and the abdominal organs in a post-mortem swine model. Doxorubicin was aerosolized into the abdominal cavity of swine at a pressure of 12 mmHg CO2 at room temperature (25°). One swine was subjected to pressurized intraperitoneal aerosol chemotherapy (PIPAC) using Micropump(©) without irradiation; the second one received 2 Gy and the third one 7 Gy whole-abdominal irradiation, 15 min prior to PIPAC application. Samples of the peritoneal surface were extracted at different positions from within the abdominal cavity. In-tissue doxorubicin penetration was measured using fluorescence microscopy on frozen thin sections. The depth of penetration of doxorubicin was found to be wide-ranging, between 17 μm on the surface of the stomach and 348 μm in the small intestine. The penetration depth into the small intestine was 348 μm, 312 μm and 265 μm for PIPAC alone, PIPAC with 2 Gy irradiation and PIPAC with 7 Gy irradiation, respectively (pdoxorubicin penetration into normal tissue in the post-mortem swine model. A reduction of doxorubicin penetration was observed after application of higher irradiation doses. Further studies are warranted to determine if irradiation can be used safely as chemopotentiating agent for patients with peritoneal metastases treated with PIPAC. Copyright© 2017, International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved.

  13. Childhood abdominal pain in primary care : design and patient selection of the HONEUR abdominal pain cohort

    NARCIS (Netherlands)

    Spee, Leo A A; van den Hurk, Arjan P J M; van Leeuwen, Yvonne; Benninga, Marc A; Bierma-Zeinstra, Sita M A; Passchier, Jan; Berger, Marjolein Y

    2010-01-01

    BACKGROUND: Abdominal pain in children is a common complaint presented to the GP. However, the prognosis and prognostic factors of childhood abdominal pain are almost exclusively studied in referred children. This cohort study aims at describing prognosis and prognostic factors of childhood abdomina

  14. General Considerations of Ruptured Abdominal Aortic Aneurysm: Ruptured Abdominal Aortic Aneurysm

    OpenAIRE

    Lee, Chung Won; Bae, Miju; Chung, Sung Woon

    2015-01-01

    Although development of surgical technique and critical care, ruptured abdominal aortic aneurysm still carries a high mortality. In order to obtain good results, various efforts have been attempted. This paper reviews initial management of ruptured abdominal aortic aneurysm and discuss the key point open surgical repair and endovascular aneurysm repair.

  15. Abdominal Compartment Syndrome and Intra-abdominal Ischemia in Patients with Severe Acute Pancreatitis

    NARCIS (Netherlands)

    Smit, M.; Buddingh, K. T.; Bosma, B.; Nieuwenhuijs, V. B.; Hofker, H. S.; Zijlstra, J. G.

    Severe acute pancreatitis may be complicated by intra-abdominal hypertension (IAH), abdominal compartment syndrome (ACS), and intestinal ischemia. The aim of this retrospective study is to describe the incidence, treatment, and outcome of patients with severe acute pancreatitis and ACS, in

  16. Abdominal Compartment Syndrome and Intra-abdominal Ischemia in Patients with Severe Acute Pancreatitis

    NARCIS (Netherlands)

    Smit, M.; Buddingh, K. T.; Bosma, B; Nieuwenhuijs, V B; Hofker, H.S.; Zijlstra, J.G.

    2016-01-01

    INTRODUCTION: Severe acute pancreatitis may be complicated by intra-abdominal hypertension (IAH), abdominal compartment syndrome (ACS), and intestinal ischemia. The aim of this retrospective study is to describe the incidence, treatment, and outcome of patients with severe acute pancreatitis and ACS

  17. Abdominal Compartment Syndrome and Intra-abdominal Ischemia in Patients with Severe Acute Pancreatitis

    NARCIS (Netherlands)

    Smit, M.; Buddingh, K. T.; Bosma, B.; Nieuwenhuijs, V. B.; Hofker, H. S.; Zijlstra, J. G.

    2016-01-01

    Severe acute pancreatitis may be complicated by intra-abdominal hypertension (IAH), abdominal compartment syndrome (ACS), and intestinal ischemia. The aim of this retrospective study is to describe the incidence, treatment, and outcome of patients with severe acute pancreatitis and ACS, in particula

  18. Abdominal binders may reduce pain and improve physical function after major abdominal surgery - a systematic review

    DEFF Research Database (Denmark)

    Rothman, Josephine Philip; Gunnarsson, Ulf; Bisgaard, Thue

    2014-01-01

    . The PubMed, EMBASE and Cochrane databases were searched for studies on the use of abdominal binders after abdominal surgery or abdominoplasty. All types of clinical studies were included. Two independent assessors evaluated the scientific quality of the studies. The primary outcomes were pain, seroma...

  19. LHC crab-cavity aspects and strategy

    Energy Technology Data Exchange (ETDEWEB)

    Calaga, R.; Tomas, R.; Zimmermann, F.

    2010-05-23

    The 3rd LHC Crab Cavity workshop (LHC-CC09) took place at CERN in October 2009. It reviewed the current status and identified a clear strategy towards a future crab-cavity implementation. Following the success of crab cavities in KEK-B and the strong potential for luminosity gain and leveling, CERN will pursue crab crossing for the LHC upgrade. We present a summary and outcome of the variousworkshop sessions which have led to the LHC crab-cavity strategy, covering topics like layout, cavity design, integration, machine protection, and a potential validation test in the SPS.

  20. Differential cavity mode spectroscopy: A new cavity enhanced technique for the detection of weak transitions

    Energy Technology Data Exchange (ETDEWEB)

    Vine, Glenn de [Centre for Gravitational Physics, Faculty of Science, The Australian National University, Canberra ACT 0200 (Australia)], E-mail: glenn.devine@jpl.nasa.gov; McClelland, David E.; Gray, Malcolm B. [Centre for Gravitational Physics, Faculty of Science, The Australian National University, Canberra ACT 0200 (Australia)

    2008-06-16

    We present a new cavity enhanced, continuous wave spectroscopic technique for the detection of weak atomic and molecular transitions. Differential Cavity Mode Spectroscopy (DCMS) measures the difference in absorption between two adjacent cavity longitudinal modes to yield a highly sensitive, yet relatively simple, cavity enhanced spectroscopic technique. In addition this relative absorption measurement is, to first order, independent of both laser frequency noise and cavity acoustic noise. Here we present both a theoretical description of this new technique and an initial experimental demonstration.

  1. Effects of ovariohysterectomy on intra-abdominal pressure and abdominal perfusion pressure in cats.

    Science.gov (United States)

    Bosch, L; Rivera del Álamo, M M; Andaluz, A; Monreal, L; Torrente, C; García-Arnas, F; Fresno, L

    2012-12-15

    Intra-abdominal pressure (IAP) and abdominal perfusion pressure (APP) have shown clinical relevance in monitoring critically ill human beings submitted to abdominal surgery. Only a few studies have been performed in veterinary medicine. The aim of this study was to assess how pregnancy and abdominal surgery may affect IAP and APP in healthy cats. For this purpose, pregnant (n=10) and non-pregnant (n=11) queens undergoing elective spaying, and tomcats (n=20, used as controls) presented for neutering by scrotal orchidectomy were included in the study. IAP, mean arterial blood pressure (MAP), APP, heart rate and rectal temperature (RT) were determined before, immediately after, and four hours after surgery. IAP increased significantly immediately after abdominal surgery in both female groups when compared with baseline (PPregnancy did not seem to affect IAP in this population of cats, possibly due to subjects being in early stages of pregnancy.

  2. Novel Geometries for the LHC Crab Cavity

    Energy Technology Data Exchange (ETDEWEB)

    Hall, B. [Lancaster Univ. (United Kingdom); Burt, G. [Lancaster Univ. (United Kingdom); Smith, J. D.A. [Lancaster Univ. (United Kingdom); Rimmer, R. [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Wang, H. [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Delayen, J. [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Calaga, R. [Brookhaven National Lab. (BNL), Upton, NY (United States)

    2009-05-01

    In 2017 the LHC is envisioned to increase its luminosity via an upgrade. This upgrade is likely to require a large crossing angle hence a crab cavity is required to align the bunches prior to collision. There are two possible schemes for crab cavity implementation, global and local. In a global crab cavity the crab cavity is far from the IP and the bunch rotates back and forward as it traverses around the accelerator in a closed orbit. For this scheme a two-cell elliptical squashed cavity at 800 MHz is preferred. To avoid any potential beam instabilities all the parasitic modes of the cavities must be damped strongly, however crab cavities have lower order and same order modes in addition to the usual higher order modes and hence a novel damping scheme must be used to provide sufficient damping of these modes. In the local scheme two crab cavities are placed at each side of the IP two start and stop rotation of the bunches. This would require crab cavities much smaller transversely than in the global scheme but the frequency cannot be increased any higher due to the long bunch length of the LHC beam. This will require a novel compact crab cavity design. A superconducting version of a two rod coaxial deflecting cavity as a suitable design is proposed in this paper.

  3. Plasmonic Coupled Cavities on Moire Surfaces

    Science.gov (United States)

    Balci, Sinan; Kocabas, Askin; Karabiyik, Mustafa; Kocabas, Coskun; Aydinli, Atilla

    2010-03-01

    We investigate surface plasmon polariton (SPP) coupled cavity modes on Moire surfaces. An experimental study has been made of the propagation of SPPs on a thin silver surface that is textured with Moire surface pattern using interference lithography. The Moire surface contains periodic array of one dimensional cavities. The distance between the cavities can be controlled by changing the periodicities of Moire surface. When the SPP cavity separation is sufficiently small, we show splitting of strongly coupled plasmonic cavity modes through numerical simulations. Conversely, when the SPP cavity separation is sufficiently large, SPP cavity modes are found to be localized and do not show splitting of SPP cavity modes . This splitting of SPP cavity modes are well explained with a tight binding model that has been succesfully applied in photonic coupled cavities. Reflection measurements and numerical simulation of a large number of adjacent SPP cavities have shown a coupled resonator optical waveguide (CROW) type plasmonic waveguide band formation within the band gap region of unperturbed uniform grating.

  4. Intra-abdominal pressure: an integrative review.

    Science.gov (United States)

    Milanesi, Rafaela; Caregnato, Rita Catalina Aquino

    2016-01-01

    There is a growing request for measuring intra-abdominal pressure in critically ill patients with acute abdominal pain to be clarified. Summarizing the research results on measurement of vesical intra-abdominal pressure and analyzing the level of evidence were the purposes of this integrative literature review, carried out based on the databases LILACS, MEDLINE and PubMed, from 2005 to July 2012. Twenty articles were identified, in that, 12 literature reviews, 4 descriptive and exploratory studies, 2 expert opinions, one prospective cohort study and one was an experience report. The vesical intra-abdominal pressure measurement was considered gold standard. There are variations in the technique however, but some common points were identified: complete supine position, in absence of abdominal contracture, in the end of expiration and expressed in mmHg. Most research results indicate keeping the transducer zeroed at the level of the mid-axillary line at the iliac crest level, and instill 25mL of sterile saline. Strong evidence must be developed. RESUMO Em pacientes críticos com quadros abdominais agudos a esclarecer é crescente a solicitação da aferição da pressão intra-abdominal. Sintetizar resultados de pesquisas sobre a mensuração da pressão intra-abdominal pela via vesical e analisar o nível de evidência foram os objetivos desta revisão integrativa da literatura, realizada nas bases LILACS, MEDLINE e PubMed, no período de 2005 a julho de 2012. Identificaram-se 20 artigos, sendo 12 revisões de literatura, 4 estudos exploratório-descritivos, 2 opiniões de especialistas, 1 estudo de coorte prospectivo e 1 relato de experiência. O método vesical para mensuração da pressão intra-abdominal foi considerado padrão-ouro. Existem variações na técnica, entretanto pontos em comum foram identificados: posição supina completa, na ausência de contratura abdominal, ao final da expiração e expressa em mmHg. A maioria indica posicionar o ponto zero do

  5. Coupled Resonator Vertical Cavity Laser Diode

    Energy Technology Data Exchange (ETDEWEB)

    CHOQUETTE, KENT D.; CHOW, WENG W.; FISCHER, ARTHUR J.; GEIB, KENT M.; HOU, HONG Q.

    1999-09-16

    We report the operation of an electrically injected monolithic coupled resonator vertical cavity laser which consists of an active cavity containing In{sub x}Ga{sub 1{minus}x}As quantum wells optically coupled to a passive GaAs cavity. This device demonstrates novel modulation characteristics arising from dynamic changes in the coupling between the active and passive cavities. A composite mode theory is used to model the output modulation of the coupled resonator vertical cavity laser. It is shown that the laser intensity can be modulated by either forward or reverse biasing the passive cavity. Under forward biasing, the modulation is due to carrier induced changes in the refractive index, while for reverse bias operation the modulation is caused by field dependent cavity enhanced absorption.

  6. CHECHIA cavity driving with FPGA controller

    Energy Technology Data Exchange (ETDEWEB)

    Czarski, T.; Koprek, W.; Pozniak, K.T.; Romaniuk, R.S. [Technical Univ. Warsaw (Poland). ELHEP Laboratory, ISE; Simrock, S. [Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany). TESLA

    2005-07-01

    The initial control of the superconductive cavity has recently been performed by applying the FPGA (Field Programmable Gate Array) technology system in DESY Hamburg. This first experiment turned attention to the general recognition of the cavity features and projected control methods. The electrical model of the cavity is taken as a consideration origin. The calibration of the signal channel is considered as a key preparation for an efficient cavity driving. The cavity parameters identification is confirmed as a proper approach for the required performance: driving on resonance during filling and field stabilization during flattop time with reasonable power consumption. The feed-forward and feedback modes were applied successfully for the CHECHIA cavity driving. Representative results of experiments are presented for different levels of the cavity field gradient. (orig.)

  7. Novel Geometries for the LHC Crab Cavity

    Energy Technology Data Exchange (ETDEWEB)

    B. Hall, G. Burt, C. Lingwood, R. Rimmer, H. Wang

    2010-05-23

    The planned luminosity upgrade to LHC is likely to necessitate a large crossing angle and a local crab crossing scheme. For this scheme crab cavities align bunches prior to collision. The scheme requires at least four such cavities, a pair on each beam line either side of the interaction point (IP). Upstream cavities initiate rotation and downstream cavities cancel rotation. Cancellation is usually done at a location where the optics has re-aligned the bunch. The beam line separation near the IP necessitates a more compact design than is possible with elliptical cavities such as those used at KEK. The reduction in size must be achieved without an increase in the operational frequency to maintain compatibility with the long bunch length of the LHC. This paper proposes a suitable superconducting variant of a four rod coaxial deflecting cavity (to be phased as a crab cavity), and presents analytical models and simulations of suitable designs.

  8. SPS RF System an Accelerating Cavity

    CERN Multimedia

    CERN PhotoLab

    1975-01-01

    The picture shows one of the two initially installed cavities. The main RF-system of the SPS comprises four cavities: two of 20 m length and two of 16.5 m length. They are all installed in one long straight section (LSS 3). These cavities are of the travelling-wave type operating at a centre frequency of 200.2 MHz. They are wideband, filling time about 700 ns and untuned. The power amplifiers, using tetrodes are installed in a surface building 200 m from the cavities. Initially only two cavities were installed, a third cavity was installed in 1978 and a forth one in 1979. The number of power amplifiers was also gradually increased: by end 1980 there were 8 500 kW units combined in pairs to feed each of the 4 cavities with up to about 1 MW RF power, resulting in a total accelerating voltage of about 8 MV. See also 7412017X, 7411048X.

  9. Highly stable piezoelectrically tunable optical cavities

    CERN Document Server

    Möhle, Katharina; Döringshoff, Klaus; Nagel, Moritz; Peters, Achim

    2013-01-01

    We have implemented highly stable and tunable frequency references using optical high finesse cavities which incorporate a piezo actuator. As piezo material we used ceramic PZT, crystalline quartz, or PZN-PT single crystals. Lasers locked to these cavities show a relative frequency stability better than 1 x 10^{-14}, which is most likely not limited by the piezo actuators. The piezo cavities can be electrically tuned over more than one free spectral range (> 1.5 GHz) with only a minor decrease in frequency stability. Furthermore, we present a novel cavity design, where the piezo actuator is prestressed between the cavity spacer components. This design features a hermetically sealable intra cavity volume suitable for, e.g., cavity enhanced spectroscopy.

  10. Abdominal aorta transplantation after programmed cryopreservation

    Institute of Scientific and Technical Information of China (English)

    Song Gu; Chang-Jian Liu; Tong Qiao; Xue-Mei Sun; Jun-Hao Chen

    2004-01-01

    AIM: To study the morphologic and cellular immunologic changes after homologous transplantation of the abdominal aorta in rats after programmed cryopreservation (-196°C).METHODS: Abdominal aorta was harvested from anesthetized Spraque Dawley (SD) rats for cryopreservation (group B) or immediate implantation (group A). The survival rates and apoptotic rates of aortic endothelial cells (ECs)were examined. The patency rates, histology and cellular immunologic changes of the abdominal aorta were examined on days 1, 3, 7, 14, 30, 60 after transplantation respectively.RESULTS: The survival rate of ECs after programmed cryopreservation was 90.1±1.79%, about 3.4% lower than that of uncryopreservation (93.5±1.96%). The apoptotic rates of ECs was increased after cryopreservation (7.15%vs 4.86%, P<0.05). The patency rate of group B was significantly higher than that of group A (91.6±12.9% vs 62.5±26.2%, P<0.01). CD4/CD8 ratio, TCR αβ and CD11b/CD18 ratio of group B were significantly lower than those of group A (P<0.05). Revivification of the cryopreserved abdominal aorta showed normal adventitia and intact smooth muscle cells.CONCLUSION: Cryopreservation can reduce homologous abdominal aortic antigenecity. Even if without administration of immunosuppressive agents, it is still feasible to implement homologous artery grafting in rats.

  11. Methods of patient warming during abdominal surgery.

    Directory of Open Access Journals (Sweden)

    Li Shao

    Full Text Available BACKGROUND: Keeping abdominal surgery patients warm is common and warming methods are needed in power outages during natural disasters. We aimed to evaluate the efficacy of low-cost, low-power warming methods for maintaining normothermia in abdominal surgery patients. METHODS: Patients (n = 160 scheduled for elective abdominal surgery were included in this prospective clinical study. Five warming methods were applied: heated blood transfusion/fluid infusion vs. unheated; wrapping patients vs. not wrapping; applying moist dressings, heated or not; surgical field rinse heated or not; and applying heating blankets or not. Patients' nasopharyngeal and rectal temperatures were recorded to evaluate warming efficacy. Significant differences were found in mean temperatures of warmed patients compared to those not warmed. RESULTS: When we compared temperatures of abdominal surgery patient groups receiving three specific warming methods with temperatures of control groups not receiving these methods, significant differences were revealed in temperatures maintained during the surgeries between the warmed groups and controls. DISCUSSION: The value of maintaining normothermia in patients undergoing abdominal surgery under general anesthesia is accepted. Three effective economical and practically applicable warming methods are combined body wrapping and heating blanket; combined body wrapping, heated moist dressings, and heating blanket; combined body wrapping, heated moist dressings, and warmed surgical rinse fluid, with or without heating blanket. These methods are practically applicable when low-cost method is indeed needed.

  12. Imaging the Abdominal Manifestations of Cystic Fibrosis

    Directory of Open Access Journals (Sweden)

    C. D. Gillespie

    2017-01-01

    Full Text Available Cystic fibrosis (CF is a multisystem disease with a range of abdominal manifestations including those involving the liver, pancreas, and kidneys. Recent advances in management of the respiratory complications of the disease has led to a greater life expectancy in patients with CF. Subsequently, there is increasing focus on the impact of abdominal disease on quality of life and survival. Liver cirrhosis is the most important extrapulmonary cause of death in CF, yet significant challenges remain in the diagnosis of CF related liver disease. The capacity to predict those patients at risk of developing cirrhosis remains a significant challenge. We review representative abdominal imaging findings in patients with CF selected from the records of two academic health centres, with a view to increasing familiarity with the abdominal manifestations of the disease. We review their presentation and expected imaging findings, with a focus on the challenges facing diagnosis of the hepatic manifestations of the disease. An increased familiarity with these abdominal manifestations will facilitate timely diagnosis and management, which is paramount to further improving outcomes for patients with cystic fibrosis.

  13. Postoperative abdominal complications after cardiopulmonary bypass

    Directory of Open Access Journals (Sweden)

    Dong Guohua

    2012-10-01

    Full Text Available Abstract Background To summarize the diagnostic and therapeutic experiences on the patients who suffered abdominal complications after cardiovascular surgery with cardiopulmonary bypass(CPB. Methods A total of 2349 consecutive patients submitted to cardiovascular surgery with CPB in our hospital from Jan 2004 to Dec 2010 were involved. The clinical data of any abdominal complication, including its incidence, characters, relative risks, diagnostic measures, medical or surgical management and mortality, was retrospectively analyzed. Results Of all the patients, 33(1.4% developed abdominal complications postoperatively, including 11(33.3% cases of paralytic ileus, 9(27.3% of gastrointestinal haemorrhage, 2(6.1% of gastroduodenal ulcer perforation, 2(6.1% of acute calculus cholecystitis, 3(9.1% of acute acalculus cholecystitis, 4(12.1% of hepatic dysfunction and 2(6.1% of ischemia bowel diseases. Of the 33 patients, 26 (78.8% accepted medical treatment and 7 (21.2% underwent subsequent surgical intervention. There were 5(15.2% deaths in this series, which was significantly higher than the overall mortality (2.7%. Positive history of peptic ulcer, advanced ages, bad heart function, preoperative IABP support, prolonged CPB time, low cardiac output and prolonged mechanical ventilation are the risk factors of abdominal complications. Conclusions Abdominal complications after cardiovascular surgery with CPB have a low incidence but a higher mortality. Early detection and prompt appropriate intervention are essential for the outcome of the patients.

  14. Transverse abdominal plane neurostimulation for chronic abdominal pain: a novel technique.

    Science.gov (United States)

    Gupta, Mayank; Goodson, Robert

    2014-01-01

    Management of chronic abdominal pain can be challenging. Sometimes patients fail to get adequate response from multiple medications and nerve blocks. We present a patient case report of chronic abdominal pain with a history of multiple surgeries managed successfully by neuromodulation of the transverse abdominis plane (TAP). The TAP block is a procedure in which local anesthetic is injected into the abdominal fascial plane that carries sensory nerves to the abdominal wall in order to block pain sensation. It has been shown to reduce postoperative pain and analgesic dependence after abdominal and gynecological surgeries. A 60-year-old woman presented to us for chronic abdominal pain for which medications provided little relief. She had an extensive history of abdominal surgeries and was also treated for lower back pain with surgery and less invasive procedures in the past. Under our care, she underwent 2 TAP blocks with almost complete resolution of her abdominal pain. Her pain, however, came back within a few of weeks of the procedures. Since our patient found pain relief from the TAP blocks, we proceeded with neurostimulation of the TAP for long-term pain relief. We placed a dorsal column stimulator 16 contact lead for lower back and leg pain and 8 contact leads placed in the TAP under ultrasound guidance. She has had multiple follow-ups since her TAP lead placement procedure with continued and near complete resolution of her abdominal pain. The TAP lead stimulation was helping her abdominal pain and the dorsal column lead stimulation was helping her back and leg pain.

  15. Trocar-related abdominal wall bleeding in 200 patients after laparoscopic cholecistectomy: Personal experience

    Institute of Scientific and Technical Information of China (English)

    Girolamo Geraci; Carmelo Sciumè; Franco Pisello; Francesco Li Volsi; Tiziana Facella; Giuseppe Modica

    2006-01-01

    AIM: To determine the complications and incidence of the first and second access-related vascular injuries induced by videolaparoscopic cholecistectomy.METHODS: We retrospectively reviewed vascular injuries in 200 consecutive patients who underwent videolaparoscopic cholecistectomy from 2003 to 2005.One hundred and one patients with placement of radial expanding trocars were assigned into group A and 99patients with placement of pyramidal tipped trocars into group B. All the patients were submitted to open access according to Hasson for the first trocar.RESULTS: Bleeding did not occur at the intraoperative cannula-site in group A. However, it occurred at the intraoperative cannula-site of 7 patients (7.1%) in group B, with a statistically significant difference (P < 0.01).No mortality was registered. More vascular lesions were found in group B.CONCLLSION: The advantage of Hasson technique is that peritoneal cavity access is gained under direct vision, preventing most severe injuries. The open technique with radial expanding trocars is recommended for secure access to the abdominal cavity in videolaparoscopy. Great care should be taken to avoid major complications and understanding the abdominal wall anatomy is important for reducing bleeding during or after s placement of trocars.

  16. Intra-Abdominal Hypertension and Abdominal Compartment Syndrome in Association with Ruptured Abdominal Aortic Aneurysm in the Endovascular Era: Vigilance Remains Critical

    Directory of Open Access Journals (Sweden)

    Matthew C. Bozeman

    2012-01-01

    In this review, we describe published experience with IAH and ACS complicating abdominal vascular catastrophes, experience with ACS complicating endovascular repair of rAAAs, and techniques for management of the abdominal wound. Vigilance and appropriate management of IAH and ACS remains critically important in decreasing morbidity and optimizing survival following catastrophic intra-abdominal vascular events.

  17. Abdominal Wall Desmoid during Pregnancy: Diagnostic Challenges

    Directory of Open Access Journals (Sweden)

    Johnny Awwad

    2013-01-01

    Full Text Available Background. Desmoids are benign tumors, with local invasive features and no metastatic potential, which have rarely been described to be pregnancy associated. Case. We described the rapid growth of an anterior abdominal wall mass in a 40-year-old pregnant woman. Due to its close proximity to the enlarged uterus, it was misdiagnosed to be a uterine leiomyoma by ultrasound examination. Final tissue diagnosis and radical resection were done at the time of abdominal delivery. Conclusion. Due to the diagnostic limitations of imaging techniques, desmoids should always be considered when the following manifestations are observed in combination: progressive growth of a solitary abdominal wall mass during pregnancy and well-delineated smooth tumor margins demonstrated by imaging techniques. This case emphasizes the importance of entertaining uncommon medical conditions in the differential diagnosis of seemingly common clinical manifestations.

  18. Electromyographic analysis of four popular abdominal exercises.

    Science.gov (United States)

    Piering, A W; Janowski, A P; Wehrenberg, W B; Moore, M T; Snyder, A C

    1993-01-01

    This study was designed to evaluate the effects of four specific sit-up exercises on muscular activity of the rectus abdominis. Pairs of surface electrodes were placed unilaterally on four quadrants of the rectus abdominis, delimited by tendinous inscriptions, in four male subjects. Electromyographic (EMG) recordings were taken while the subjects performed four different abdominal exercises. Each abdominal exercise was hypothesized to have a specific effect on one of the four quadrants of the rectus abdominis. The four exercises analyzed were: 1) long lying crunch, 2) bent knee crunch, 3) leg raise, and 4) vertical leg crunch. Analysis of the standardized EMG recordings demonstrated no significant differences in the mean muscle activity between the four different quadrants, in the mean muscle activity between the four different exercises, and in interactions between the exercises and the quadrants of the rectus abdominis. We conclude that none of the four abdominal exercises studied are specific for strengthening individual muscle quadrants of the rectus abdominis.

  19. Abdominal wall hernias: imaging with spiral CT

    Energy Technology Data Exchange (ETDEWEB)

    Stabile Ianora, A.A.; Midiri, M.; Vinci, R.; Rotondo, A.; Angelelli, G. [Department of Radiology, Bari University Hospital (Italy)

    2000-06-01

    Computed tomography is an accurate method of identifying the various types of abdominal wall hernias, especially if they are clinically occult, and of distinguishing them from other diseases such as hematomas, abscesses and neoplasia. In this study we examined the CT images of 94 patients affected by abdominal wall hernias observed over a period of 6 years. Computed tomography clearly demonstrates the anatomical site of the hernial sac, the content and any occlusive bowel complications due to incarceration or strangulation. Clinical diagnosis of external hernias is particularly difficult in obese patients or in those with laparotic scars. In these cases abdominal imaging is essential for a correct preoperative diagnosis and to determine the most effective treatment. (orig.)

  20. Abdominal Wall Endometrioma. Report of Two Cases

    Directory of Open Access Journals (Sweden)

    Tahiluma Santana Pedraza

    2014-08-01

    Full Text Available Abdominal wall endometrioma is a condition rarely seen by surgeons. It represents a diagnostic challenge due to its similarity with other tumors. This entity occurs in fertile women and often appears two to five years after gynecological and obstetric surgical procedures. It must be considered when dealing with a cyclically painful nodule located in a laparotomy scar. The diagnosis is established by histological examination; most imaging tests determine the characteristics of the lesion, concomitant lesions and the intra-abdominal origin or location in the abdominal wall. The cases of two patients treated at the General Surgery Department of the María Eugenia González Comprehensive Diagnostic Center in the Capital District, Venezuela, are presented. Wide excision of the tissue and histological examination were performed, confirming the diagnosis. The postoperative course was uneventful. This case is presented given the rarity of this condition.

  1. Decompressive laparotomy for abdominal compartment syndrome

    Science.gov (United States)

    Kimball, E.; Malbrain, M.; Nesbitt, I.; Cohen, J.; Kaloiani, V.; Ivatury, R.; Mone, M.; Debergh, D.; Björck, M.

    2016-01-01

    Background The effect of decompressive laparotomy on outcomes in patients with abdominal compartment syndrome has been poorly investigated. The aim of this prospective cohort study was to describe the effect of decompressive laparotomy for abdominal compartment syndrome on organ function and outcomes. Methods This was a prospective cohort study in adult patients who underwent decompressive laparotomy for abdominal compartment syndrome. The primary endpoints were 28‐day and 1‐year all‐cause mortality. Changes in intra‐abdominal pressure (IAP) and organ function, and laparotomy‐related morbidity were secondary endpoints. Results Thirty‐three patients were included in the study (20 men). Twenty‐seven patients were surgical admissions treated for abdominal conditions. The median (i.q.r.) Acute Physiology And Chronic Health Evaluation (APACHE) II score was 26 (20–32). Median IAP was 23 (21–27) mmHg before decompressive laparotomy, decreasing to 12 (9–15), 13 (8–17), 12 (9–15) and 12 (9–14) mmHg after 2, 6, 24 and 72 h. Decompressive laparotomy significantly improved oxygenation and urinary output. Survivors showed improvement in organ function scores, but non‐survivors did not. Fourteen complications related to the procedure developed in eight of the 33 patients. The abdomen could be closed primarily in 18 patients. The overall 28‐day mortality rate was 36 per cent (12 of 33), which increased to 55 per cent (18 patients) at 1 year. Non‐survivors were no different from survivors, except that they tended to be older and on mechanical ventilation. Conclusion Decompressive laparotomy reduced IAP and had an immediate effect on organ function. It should be considered in patients with abdominal compartment syndrome. PMID:26891380

  2. Systemic Presentation of Retained Foreign Body in the Peritoneal Cavity (Gossypiboma

    Directory of Open Access Journals (Sweden)

    S Mehrabi

    2010-04-01

    Full Text Available Introduction & Objective: One of the infrequent complications of surgical operations is retained foreign body in body cavities which lead to morbidity and mortality for patients and also medico-legal problems for surgeons. Gossypiboma is an uncommon surgical complication, which is defined as a mass or cystic lesion due to retained surgical sponge in the abdominal cavity. Retained foreign body causes abscess, fistula, mass, obstruction after surgical operations and is diagnosed by x ray evaluation. In all patients, it is presented with pain, palpable mass. The infected post operation retained foreign bodies should be considered in differential diagnosis. In this study, we reported a patient with systemic presentation of retained two foreign bodies (surgical sponge in abdominal cavity. Case: The patient is a 32 years old female, which after cesarean section in 2008 developed abdominal pain, anorexia, and weight loss. The patient was referred to a specialist, and para-clinical checkup was done on her. In sonography and CT-scan, two cystic lesions with calcified wall were reported in the left and right sides of the abdomen. Then, the patient was referred to a surgeon with the diagnosis of hydatid cyst. During operation, cystic lesion with adhesion to viscera in the right side of the abdomen and a mass lesion in the descending colon in the left side were seen.The pathology report showed a surgical sponge in the right cystic lesion and surgical towel in the descending colon. Conclusion: Retained foreign bodies should be considered in differential diagnosis of any post operative patients who are presented with pain, infection, or palpable mass.

  3. ABDOMINAL SCAR ENDOMETRIOSIS: REPORT OF 28 CASES

    Institute of Scientific and Technical Information of China (English)

    向阳; 郎景和; 王友芳; 黄荣丽; 连丽娟

    1995-01-01

    Twenty-eight cases of abdominal scar endometriosis from Janurary,1989 to December,1993 are reported.Of these patients,twenty-four underwent term cesarean section,and four underwent a midtrimester abortion by abdominal hysterotomy.The majority of patients manifested symptoms 1 year after the operation.The most common was a painful mass of scar tissue that became swollen and tender during menstruation.The pathogenesis,diagnosis and treatment are discussed.In correlation with the pathological findings,the effects of drug therapy are evaluated.It was found that surgical excision is the best method of treatment.

  4. Giant cystic abdominal masses in children

    Energy Technology Data Exchange (ETDEWEB)

    Wootton-Gorges, Sandra L.; Thomas, Kristen B.; Harned, Roger K.; Wu, Sarah R.; Stein-Wexler, Rebecca; Strain, John D. [University of California, Davis Health Center, Sacramento, CA (United States); Davis Children' s Hospital, Department of Radiology, Sacramento, CA (United States)

    2005-12-01

    In this pictorial essay the common and uncommon causes of large cystic and cyst-like abdominal masses in children are reviewed. We discuss and illustrate the following: mesenchymal hamartoma, choledochal cyst, hydrops of the gallbladder, congenital splenic cyst, pancreatic pseudocyst, pancreatic cystadenoma, hydronephrosis, multicystic dysplastic kidney, multilocular cystic nephroma, adrenal hemorrhage, mesenteric and omental cysts, gastrointestinal duplication cyst, meconium pseudocyst, ovarian cysts and cystic neoplasms, hematocolpos, urachal cysts, appendiceal abscess, abdominal and sacrococcygeal teratoma, and CSF pseudocyst. We also describe imaging features and clues to the diagnosis. (orig.)

  5. Penetrating abdominal injuries in children in Nigeria.

    Science.gov (United States)

    Ameh, E A; Nmadu, P T

    1999-09-01

    This is a report of a retrospective study of 24 children managed for penetrating abdominal injury over 10 years, and it represents 34% of all abdominal injuries in children in that period. Falls onto sharp objects within and around the home were responsible for ten of the injuries, seven were injured by animal horns and four were sporting injuries. Violence and road traffic accidents were uncommon. Most patients (67%) had evisceration of omentum or intestine, and one of these was found at laparotomy to have a jejuno-jejunal intussusception. Seven children had injury to hollow viscera. There were three deaths, one each from overwhelming sepsis, tetanus and haemorrhage.

  6. Systemic lupus erythematosus : abdominal radiologic findings

    Energy Technology Data Exchange (ETDEWEB)

    Oh, Jae Cheon; Cho, On Koo; Lee, Yong Joo; Bae, Jae Ik; Kim, Yong Soo; Rhim, Hyun Chul; Ko, Byung Hee [Hanyang Univ. College of Medicine, Seoul (Korea, Republic of)

    1999-06-01

    Systemic lupus erythematosus(SLE) is a systemic disease of unknown etiology. Its main pathology is vasculitis and serositis, due to deposition of the immune complex or antibodies. Most findings are nonspecific ; abdominal manifestations include enteritis, hepatomegaly, pancreatic enlargement, serositis, lymphadenopathy, splenomegaly, nephritis, interstitial cystitis, and thrombophlebitis. We described radiologic findings of various organ involvement of SLE; digestive system, serosa, reticuloendothelial system, urinary system, and venous system. Diagnosis of SLE was done according to the criteria of American Rheumatism Association. Understanding of the variable imaging findings in SLE may be helpful for the early detection of abdominal involvement and complications.

  7. INTRA-ABDOMINAL INFECTION AND ACUTE ABDOMEN-EPIDEMIOLOGY, DIAGNOSIS AND GENERAL PRINCIPLES OF SURGICAL MANAGEMENT

    Directory of Open Access Journals (Sweden)

    Jovanović Dušan

    2015-03-01

    Full Text Available Intra-abdominal infections are multifactorial and present an complex inflammatory response of the peritoneum to microorganisms followed by exudation in the abdominal cavity and systemic response Despite advances in management and critical care of patients with acute generalized peritonitis due to hollow viscus perforation, prognosis is still very poor, with high mortality rate. Early detection and adequate treatment is essential to minimize complications in the patient with acute abdomen. Prognostic evaluation of complicated IAI by modern scoring systems is important to assess the severity and the prognosis of the disease. Control of the septic source can be achieved either by nonoperative or operative means. Nonoperative interventional procedures include percutaneous drainages of abscesses. The management of primary peritonitis is non-surgical and antibiotic- treatment. The management of secondary peritonitis include surgery to control the source of infection, removal of toxins, bacteria, and necrotic tissue, antibiotic therapy, supportive therapy and nutrition. "Source control" is sine qua non of success and adequate surgical procedure involves closure or resection of any openings into the gastrointestinal tract, resection of inflamed tissue and drainage of all abdominal and pelivic collections.

  8. Whether superficial abdominal reflex is affected by subcostal transverse abdominal incisions? A prospective, observational early experience

    Directory of Open Access Journals (Sweden)

    Jitin Bajaj

    2017-01-01

    Full Text Available Introduction: Superficial abdominal reflex (SAR is an important part of the neurologic assessment. It is normally present and may be present or absent in various physiological as well as pathological conditions. The presence of an abdominal incision creates a dilemma in the mind of the clinician for it affecting this reflex. As there is no literature on this, we decided to study the effect of abdominal incisions on SAR. Materials and Methods: It was a prospective, observational study. We evaluated the patients requiring transverse subcostal incision (range 3–12 cm both preoperatively and postoperatively, for their abdominal reflexes. Patients with preoperative normal and symmetrical abdominal reflexes were included in the study. Postoperatively, we compared the change of SAR with the preoperative status and analyzed the data. Results: A total of 94 patients underwent surgeries, out of which 54 patients came under inclusion criteria, comprising 36 males and 18 females. Subcostal transverse abdominal incisions were made for surgeries including both gastrointestinal and ventriculoperitoneal shunts. SAR was found unaffected by the incisions in all patients. Conclusions: Although the study was small, subcostal transverse abdominal incisions were not found to affect SAR.

  9. Dynamical tunneling in optical cavities

    CERN Document Server

    Hackenbroich, G; Hackenbroich, Gregor; Noeckel, Jens U.

    1998-01-01

    The lifetime of whispering gallery modes in a dielectric cavity with a metallic inclusion is shown to fluctuate by orders of magnitude when size and location of the inclusion are varied. We ascribe these fluctuations to tunneling transitions between resonances quantized in different regions of phase space. This interpretation is confirmed by a comparison of the classical phase space structure with the Husimi distribution of the resonant modes. A model Hamiltonian is introduced that describes the phenomenon and shows that it can be expected in a more general class of systems.

  10. Basketballs as spherical acoustic cavities

    Science.gov (United States)

    Russell, Daniel A.

    2010-06-01

    The sound field resulting from striking a basketball is found to be rich in frequency content, with over 50 partials in the frequency range of 0-12 kHz. The frequencies are found to closely match theoretical expectations for standing wave patterns inside a spherical cavity. Because of the degenerate nature of the mode shapes, explicit identification of the modes is not possible without internal investigation with a microphone probe. A basketball proves to be an interesting application of a boundary value problem involving spherical coordinates.

  11. [Pathogenetic aspects of intra-abdominal hypertension in patients with abdominal sepsis].

    Science.gov (United States)

    Veliev, N A; Gasanova, D N

    2011-09-01

    The authors had offered the original estimated system with the points calculation, basing on analysis of the examination and treatment results in 150 patients, suffering abdominal sepsis. The system, alike others, includes not only determination of the inflammation factors and indices of endotoxicosis, but as well as those, concerning intraabdominal pressure, the anterior abdominal wall rigidity and the tissues elasticity. Among the important indices, needed to determine, were considered those, which categorize the syndrome of intraabdominal, intrathoracic and microregional hypertension as well as the mechanisms of endotoxicosis pathogenesis. The authors recommend to use the indices of pathological consequences of this two factors while doing assessment of the abdominal sepsis severity.

  12. Nanobeam photonic crystal cavity quantum dot laser

    CERN Document Server

    Gong, Yiyang; Shambat, Gary; Sarmiento, Tomas; Harris, James S; Vuckovic, Jelena

    2010-01-01

    The lasing behavior of one dimensional GaAs nanobeam cavities with embedded InAs quantum dots is studied at room temperature. Lasing is observed throughout the quantum dot PL spectrum, and the wavelength dependence of the threshold is calculated. We study the cavity lasers under both 780 nm and 980 nm pump, finding thresholds as low as 0.3 uW and 19 uW for the two pump wavelengths, respectively. Finally, the nanobeam cavity laser wavelengths are tuned by up to 7 nm by employing a fiber taper in near proximity to the cavities. The fiber taper is used both to efficiently pump the cavity and collect the cavity emission.

  13. [Trichomonosomycosis of the oral cavity].

    Science.gov (United States)

    Kurnatowska, A J; Kurnatowski, P

    1999-01-01

    Protozoa and fungi of the oral cavity, although frequently occuring and connected with considerable clinical adverse effects, are as yet insufficiently known. The aims of the study were to estimate the prevalence of common invasions of Trichomonas tenax and fungi, to associate the symptoms with the diagnosis of trichomonosis complicated by mycosis and to determine trichomonacidal properties of ornidazole, tinidazole and metronidazole. 936 dentist patients with different diagnoses were included into the study. The collected material consisted of rinsings, with simultaneous application of selective media, different for protozoa and for fungi 6ultures. Among the examined patients T. tenax was found in 90 cases including 85 cases where it occurred together with fungi (11 species), on the basis of which the diagnosis of trichomonosomycosis of the oral cavity was established. It was the most often in patients with leukoplakia and Lichen Wilsoni. We received a statistically significant association (0.001 tenax with fungi and xerostomia, burning sensation, periodontal pockets and denuded teeth. Trichomonas tenax was not found in any patiem with caries and with aphthe recidivans.

  14. Rationale for designing cavity preparations.

    Science.gov (United States)

    Laswell, H R; Welk, D A

    1985-04-01

    Increased resistance to caries, increased dental awareness, superior diagnostic capabilities, better illumination, optical aids that significantly enhance vision, improved and standardized materials for restoration, and a deeper understanding of the caries process enable a far more conservative approach to tooth preparation. The dentist can concentrate on preserving as much sound tooth structure as possible with less attention being devoted to resistance and retention form that previously demanded in bulk restorations and massive channels and locks that are no longer appropriate. Although caries inhibitory effects have been shown with materials such as silicate cement, glass ionomers, and resins that leach fluoride, in general, dentists should not rely on restorative materials to inhibit the development of future decay. Characteristics of the carious lesion are unique for each tooth according to many factors centering around the plaque pattern for that tooth and not according to zones of natural susceptibility or immunity strictly dictated by morphology. Therefore, no single cavity preparation duplicated from a textbook is likely to be satisfactory for an individual tooth. Furthermore, novices learning the subject of cavity preparation often leave decalcified enamel when they attempt to replicate under clinical conditions that which they have learned in technique courses. This is the major invitation to future caries reappearing adjacent to restorations. Also, failure to duplicate the exact morphology of the tooth surface that has been replaced is likely to alter the pattern of plaque accumulation and create other caries prone areas.(ABSTRACT TRUNCATED AT 250 WORDS)

  15. Connective tissue alteration in abdominal wall hernia

    DEFF Research Database (Denmark)

    Henriksen, N A; Yadete, D H; Sørensen, Lars Tue

    2011-01-01

    The aetiology and pathogenesis of abdominal wall hernia formation is complex. Optimal treatment of hernias depends on a full understanding of the pathophysiological mechanisms involved in their formation. The aim of this study was to review the literature on specific collagen alterations in abdom...

  16. A diagnostic approach to abdominal tuberculosis

    Institute of Scientific and Technical Information of China (English)

    Eser Vardareli; Baybora Kircali

    2005-01-01

    @@ TO THE EDITOR We read with interest the article by Uzunkoy et al[1]. about diagnosis of abdominal tuberculosis. In this article authors concluded that PCR for mycobacterium tuberculosis complex is a noninvasive method which can provide the diagnosis in most cases. If this tests negative or not feasible, laparotomy should be performed.

  17. Unusual Differential Diagnosis of Upper Abdominal Pain

    Directory of Open Access Journals (Sweden)

    Lanthaler Monika

    2009-01-01

    The peculiarity of this case is the rarity of toothpick ingestion and gastric perforation in a young and healthy white Caucasian followed by development of a liver abscess after primary uneventful endoscopic removal. In light of this case, gastric perforation due to ingested foreign bodies such as toothpicks can be considered a rare cause of upper abdominal pain.

  18. The neonate with an abdominal mass.

    Science.gov (United States)

    Chandler, John C; Gauderer, Michael W L

    2004-08-01

    Abdominal masses in neonates reflect a wide spectrum of diseases,from lesions that can cause significant morbidity and mortality,to conditions readily corrected surgically, to entities which maybe safely observed. It is incumbent upon the infant's physician to determine the nature of the mass in a timely, safe, and cost-effective manner.

  19. [Intraabdominal hypertension and abdominal compartment syndrome

    DEFF Research Database (Denmark)

    Sonne, M.; Hilligsø, Jens Georg

    2008-01-01

    Intraabdominal hypertension (IAH) and abdominal compartment syndrome (ACS) are rare conditions with high mortality. IAH is an intraabdominal pressure (IAP) above 12 mmHg and ACS an IAP above 20 mmHg with evidence of organ dysfunction. IAP is measured indirectly via the bladder or stomach. Various...

  20. [Albert Einstein and his abdominal aortic aneurysm].

    Science.gov (United States)

    Cervantes Castro, Jorge

    2011-01-01

    The interesting case of Albert Einstein's abdominal aortic aneurysm is presented. He was operated on at age 69 and, finding that the large aneurysm could not be removed, the surgeon elected to wrap it with cellophane to prevent its growth. However, seven years later the aneurysm ruptured and caused the death of the famous scientist.

  1. Postoperative pleural effusion following upper abdominal surgery

    DEFF Research Database (Denmark)

    Nielsen, P H; Jepsen, S B; Olsen, A D

    1989-01-01

    Of 128 patients who underwent upper abdominal surgery, examined by standard preoperative and postoperative chest roentgenograms for the formation of postoperative pleural effusions, 89 had postoperative pleural effusions. Their presence was not related to the type of operation, infection, serum a...

  2. Postoperative pleural effusion following upper abdominal surgery

    DEFF Research Database (Denmark)

    Nielsen, P H; Jepsen, S B; Olsen, A D

    1989-01-01

    Of 128 patients who underwent upper abdominal surgery, examined by standard preoperative and postoperative chest roentgenograms for the formation of postoperative pleural effusions, 89 had postoperative pleural effusions. Their presence was not related to the type of operation, infection, serum a...

  3. Pulmonary complications of upper abdominal surgery.

    Directory of Open Access Journals (Sweden)

    Deodhar S

    1991-04-01

    Full Text Available Pulmonary complications encountered in 67 patients undergoing upper abdominal surgery in our unit in one year period are analysed. Pulmonary function tests and their post-operative reduction, as also the risk factors are discussed. Pathophysiology responsible for pulmonary complications is outlined.

  4. ADVANCED ABDOMINAL PREGNANCY: THREE CASES WITH A ...

    African Journals Online (AJOL)

    least 6 cm above the plane of the brim. The foetal .... history of abdominal pains, i.e. 'spurious labour' probably due to the ... a combination of several features; from a study of these, a high index of ... Foetal parts overlie the maternal spine in a lateral view. 4. ... provided the X-ray examination excludes foetal abnor- malities' ...

  5. Reconstruction of complex abdominal wall defects

    NARCIS (Netherlands)

    Slater, N.J.

    2014-01-01

    Incisional hernia is by far the most common complication after laparotomies, occurring in 10 – 20%. Its occurrence is secondary to insufficient healing of the postoperative scar, resulting in wound dehiscence and protrusion of abdominal contents through an opening in the musculo-fascial layer of the

  6. Genetics Home Reference: abdominal wall defect

    Science.gov (United States)

    ... Aug;6(4):232-6. Citation on PubMed Islam S. Clinical care outcomes in abdominal wall defects. Curr ... Site Map Customer Support Selection Criteria for Links USA.gov Copyright Privacy Accessibility FOIA Viewers & Players U.S. ...

  7. Abdominal muscle function and incisional hernia

    DEFF Research Database (Denmark)

    Jensen, K K; Kjaer, M; Jorgensen, L N

    2014-01-01

    of life depends largely on abdominal muscle function (AMF), and the present review thus evaluates to what extent AMF is influenced by VIH and surgical repair. METHODS: The PubMed and EMBASE databases were searched for articles following a systematic strategy for inclusion. RESULTS: A total of seven...

  8. Abdominal sacral colpopexy for massive genital prolapse.

    Science.gov (United States)

    Powell; Joseph

    1998-07-01

    Objective: A retrospective study to determine the success and complications of abdominal sacral colpopexy in correcting massive genital prolapse over an 8-year period between September 1989 and January 1997.Methods: The charts were reviewed for 3 patients with massive procidentia and 15 patients with symptomatic posthysterectomy vaginal vault prolapse, who desired preservation of sexual function and underwent abdominal sacral colpopexy with Marlex mesh at two community teaching hospitals.Results: In 16 of the 18 patients, one or more concurrent procedures were performed at the same time, including three Burch colpocystourethropexies and one Raz bladder neck suspension, which successfully controlled urinary stress incontinence. In three cases, staging procedures were done for ovarian neoplasia. There were no intraoperative complications. One patient developed a superficial abdominal wound infection, one patient had a deep venous thrombosis in her left leg 7 days postoperatively, and one patient experienced a 1 cm area of graft erosion 10 months postoperative requiring partial resection. Duration of follow-up has varied from 8 months to 5 years. One patient died 43 months after surgery of unrelated causes. No patients developed recurrent prolapse.Conclusions: Abdominal sacral colpopexy is a successful operation for the correction of prolapse. Serious complications are infrequent. Photographs of the technique and a review of the literature are presented.

  9. The Principles of Abdominal Wound Closure

    NARCIS (Netherlands)

    Meijer, E. -T.; Timmermans, L.; Jeekel, J.; Lange, J. F.; Muysoms, F. E.

    2013-01-01

    Background : Incisional hernia (IH) is a common complication of abdominal surgery. Its incidence has been reported as high as 39.9%. Many factors influence IH rates. Of these, surgical technique is the only factor directly controlled by the surgeon. There is much evidence in the literature on the op

  10. Abdominal manifestations of actinomycosis in IUD users.

    Science.gov (United States)

    Asuncion, C M; Cinti, D C; Hawkins, H B

    1984-08-01

    The use of an intrauterine device (IUD) is associated with the presence of actinomyces in the female genital tract. Since IUD use is currently so prevalent, IUD-related pelvic inflammatory disease occasionally spreads to the rest of the abdomen. Two patients with abdominal actinomycosis in association with an IUD illustrate the problem; we review the general problem.

  11. REVIEW - BIOMATERIALS FOR ABDOMINAL-WALL RECONSTRUCTION

    NARCIS (Netherlands)

    SIMMERMACHER, RKJ; BLEICHRODT, RP; SCHAKENRAAD, JM

    1992-01-01

    The reconstruction of large abdominal wall defects still is a major surgical problem. Many different techniques have been developed for this purpose, most of which appeared to be unsatisfactory. The lack of sufficient tissue requires the insertion of prosthetic material. Non-absorbable prostheses

  12. Ray splitting in paraxial optical cavities

    CERN Document Server

    Puentes, G; Woerdman, J P

    2003-01-01

    We present a numerical investigation of the ray dynamics in a paraxial optical cavity when a ray splitting mechanism is present. The cavity is a conventional two-mirror stable resonator and the ray splitting is achieved by inserting an optical beam splitter perpendicular to the cavity axis. We show that depending on the position of the beam splitter the optical resonator can become unstable and the ray dynamics displays a positive Lyapunov exponent.

  13. Tunable Cavity Optomechanics with Ultracold Atoms

    CERN Document Server

    Purdy, T P; Botter, T; Brahms, N; Ma, Z -Y; Stamper-Kurn, D M

    2010-01-01

    We present an atom-chip-based realization of quantum cavity optomechanics with cold atoms localized within a Fabry-Perot cavity. Effective sub-wavelength positioning of the atomic ensemble allows for tuning the linear and quadratic optomechanical coupling parameters, varying the sensitivity to the displacement and strain of a compressible gaseous cantilever. We observe effects of such tuning on cavity optical nonlinearity and optomechanical frequency shifts, providing their first characterization in the quadratic-coupling regime.

  14. Cavity QED-based quantum walk

    Science.gov (United States)

    di, Tiegang; Hillery, Mark; Zubairy, M. Suhail

    2004-09-01

    We discuss a possible experimental scheme for the implementation of a quantum walk. The scheme is based on the passage of an atom inside a high- Q cavity. The chirality is characterized by the atomic states and the displacement is characterized by the photon number inside the cavity. The quantum steps are described by appropriate interactions with a sequence of classical and quantized cavity fields.

  15. Continuously tunable, split-cavity gyrotrons

    Science.gov (United States)

    Brand, G. F.; Gross, M.

    1985-12-01

    Attention is given to a gyrotron cavity configuration which is split in halves longitudinally, to allow any frequency lying between the fixed cavity resonance to be assessed by mechanically changing the separation of the two halves. Experimental results are presented which demonstrate that the rate-of-change in resonant frequency with separation is greatest if the minor axis of the cavity cross section is the one undergoing change. Excellent agreement with theory is noted for these results.

  16. Dither Cavity Length Controller with Iodine Locking

    Directory of Open Access Journals (Sweden)

    Lawson Marty

    2016-01-01

    Full Text Available A cavity length controller for a seeded Q-switched frequency doubled Nd:YAG laser is constructed. The cavity length controller uses a piezo-mirror dither voltage to find the optimum length for the seeded cavity. The piezo-mirror dither also dithers the optical frequency of the output pulse. [1]. This dither in optical frequency is then used to lock to an Iodine absorption line.

  17. Comparison of Tubal Sterilization Procedures Performed by Keyless Abdominal Rope-Lifting Surgery and Conventional CO2 Laparoscopy: A Case Controlled Clinical Study

    Directory of Open Access Journals (Sweden)

    Kahraman Ülker

    2013-01-01

    Full Text Available Objective. To evaluate the safety and efficacy of Keyless Abdominal Rope-Lifting Surgery (KARS, for tubal sterilization procedures in comparison with the conventional CO2 laparoscopy. Material and Methods. During a one-year period, 71 women underwent tubal ligation surgery. Conventional laparoscopy (N=38 and KARS (N=33 were used for tubal sterilization. In KARS, an abdominal access pathway through a single intra-abdominal incision was used to place transabdominal sutures that elevated the abdominal wall, and the operations were performed through the intraumbilical entry without the use of trocars. In CO2 laparoscopy, following the creation of the CO2 pneumoperitoneum a 10 mm trocar and two 5 mm trocars were introduced into the abdominal cavity. Tubal sterilizations were performed following the creation of the abdominal access pathways in both groups. The groups were compared with each other. Results. All operations could be performed by KARS without conversion to CO2 laparoscopy or laparotomy. The mean operative time of the two groups was not significantly different (P>0.05. Intra- and postoperative findings including complications, bleeding, and hospital stay time did not differ between groups (P>0.05. Conclusion. KARS for tubal sterilization seems safe and effective in terms of cosmesis, postoperative pain, and early hospital discharge.

  18. A role of 18F-fluorodeoxyglucose positron emission/computed tomography in a strategy for abdominal wall metastasis of colorectal mucinous adenocarcinoma developed after laparoscopic surgery

    Directory of Open Access Journals (Sweden)

    Kaneko Hironori

    2011-02-01

    Full Text Available Abstract Metastasis to the abdominal wall including port sites after laparoscopic surgery for colorectal cancer is rare. Resection of metastatic lesions may lead to greater survival benefit if the abdominal wall metastasis is the only manifestation of recurrent disease. A 57-year-old man, who underwent laparoscopic surgery for advanced mucinous adenocarcinoma of the cecum 6 years prior, developed a nodule in the surgical wound at the lower right abdomen. Although tumor markers were within normal limits, the metastasis to the abdominal wall and abdominal cavity from the previous cecal cancer was suspected. An abdominal computed tomography scan did not provide detective evidence of metastasis. 18F-fluorodeoxyglucose positron emission/computed tomography (18F-FDG PET/CT was therefore performed, which demonstrated increased 18F-fluorodeoxyglucose uptake (maximum standardized uptake value: 3.1 in the small abdominal wall nodule alone. Histopathological examination of the resected nodule confirmed the diagnosis of metastatic mucinous adenocarcinoma. Prognosis of intestinal mucinous adenocarcinoma is reported to be poorer than that of non-mucinous adenocarcinoma. In conclusion, this case suggests an important role of 18F-FDG PET/CT in early diagnosis and decision-making regarding therapy for recurrent disease in cases where a firm diagnosis of recurrent colorectal cancer is difficult to make.

  19. Abdominal obesity in adolescent girls attending a public secondary ...

    African Journals Online (AJOL)

    Abdominal obesity in adolescent girls attending a public secondary school in Port ... behavioural factors associated with the development of abdominal obesity. ... daily fruit consumption and watching of TV/Internet/Video games for =2hours ...

  20. Lessons from emergency laparotomy for abdominal tuberculosis in ...

    African Journals Online (AJOL)

    of the outcome of emergency laparotomy for abdominal TB in a population with a high prevalence of ... Committee and the Biomedical Research Ethics Committee of the. University of ... with abdominal pain, distension, vomiting and signs of ...

  1. abdominal pain in adult sickle cell disease patients: a nigerian ...

    African Journals Online (AJOL)

    ABSTRACT. Background: Abdominal pain is a relatively frequent occurrence in sickle cell disease. The aetiology of abdominal pain in sickle cell disease is often ..... A59_9-en.pdf. 4. Ahmed S ... Research Clinical Gastroenterology. 2005;.

  2. Agent–host–environment model of blunt abdominal trauma in ...

    African Journals Online (AJOL)

    blunt abdominal trauma (BAT) in children in light of the ..... Middle. 67. 11. High. 38. 7. Blunt abdominal trauma in children Waly et al. 63. Copyright © Annals .... 8 Parish R. Battered Child Syndrome: Investigating physical abuse and homicide.

  3. Retained sponge after abdominal surgery: experience from a third ...

    African Journals Online (AJOL)

    Retained sponge after abdominal surgery: experience from a third world country. ... Abstract. Background: Retained abdominal sponge after surgery is a quite rare condition which can have heavy medico-legal consequences; ... Article Metrics.

  4. Design of the ILC Crab Cavity System

    Energy Technology Data Exchange (ETDEWEB)

    Adolphsen, C.; Beard, C.; Bellantoni, L.; Burt, G.; Carter, R.; Chase, B.; Church, M.; Dexter, A.; Dykes, M.; Edwards, H.; Goudket, P; Jenkins, R.; Jones, R.M.; Kalinin,; Khabiboulline, T.; Ko, K.; Latina, A.; Li, Z.; Ma, L.; McIntosh, P.; Ng, C.; /SLAC /Daresbury /Fermilab /Cockcroft Inst. Accel. Sci. Tech. /CERN

    2007-08-15

    The International Linear Collider (ILC) has a 14 mrad crossing angle in order to aid extraction of spent bunches. As a result of the bunch shape at the interaction point, this crossing angle at the collision causes a large luminosity loss which can be recovered by rotating the bunches prior to collision using a crab cavity. The ILC baseline crab cavity is a 9-cell superconducting dipole cavity operating at a frequency of 3.9 GHz. In this paper the design of the ILC crab cavity and its phase control system, as selected for the RDR in February 2007 is described in fuller detail.

  5. Novel Geometries for the LHC CRAB Cavity

    CERN Document Server

    Hall, Ben

    2010-01-01

    In 2017 the LHC is envisioned to increase its luminosity via an upgrade. This upgrade is likely to require a large crossing angle hence a crab cavity is required to align the bunches prior to collision. There are two possible schemes for crab cavity implementation, global and local. In a global crab cavity the crab cavity is far from the IP and the bunch rotates back and forward as it traverses around the accelerator in a closed orbit. For this scheme a two-cell elliptical squashed cavity at 800 MHz is preferred. To avoid any potential beam instabilities all the parasitic modes of the cavities must be damped strongly, however crab cavities have lower order and same order modes in addition to the usual higher order modes and hence a novel damping scheme must be used to provide sufficient damping of these modes. In the local scheme two crab cavities are placed at each side of the IP two start and stop rotation of the bunches. This would require crab cavities much smaller transversely than in the global scheme b...

  6. Cavity quantum electrodynamics: coherence in context.

    Science.gov (United States)

    Mabuchi, H; Doherty, A C

    2002-11-15

    Modern cavity quantum electrodynamics (cavity QED) illuminates the most fundamental aspects of coherence and decoherence in quantum mechanics. Experiments on atoms in cavities can be described by elementary models but reveal intriguing subtleties of the interplay of coherent dynamics with external couplings. Recent activity in this area has pioneered powerful new approaches to the study of quantum coherence and has fueled the growth of quantum information science. In years to come, the purview of cavity QED will continue to grow as researchers build on a rich infrastructure to attack some of the most pressing open questions in micro- and mesoscopic physics.

  7. State of the Art SRF Cavity Performance

    CERN Document Server

    Lilje, L

    2004-01-01

    The paper will review superconducting RF cavity performance for β=1 cavities used in both linear and circular accelerators. These superconducting cavities are used in two kinds of applications: High current storage rings and efficient high duty cycle linacs. In recent years the performance of those cavities has been improving steadily. High accelerating gradients have been achieved using advanced surface preparation techniques like electropolishing and surface cleaning methods like high pressure water rinsing. High intensity beams can be handled with advanced higher-order-mode damping schemes.

  8. Engineering topological materials in microwave cavity arrays

    CERN Document Server

    Anderson, Brandon M; Owens, Clai; Schuster, David I; Simon, Jonathan

    2016-01-01

    We present a scalable architecture for the exploration of interacting topological phases of photons in arrays of microwave cavities, using established techniques from cavity and circuit quantum electrodynamics. A time-reversal symmetry breaking (non-reciprocal) flux is induced by coupling the microwave cavities to ferrites, allowing for the production of a variety of topological band structures including the $\\alpha=1/4$ Hofstadter model. Effective photon-photon interactions are included by coupling the cavities to superconducting qubits, and are sufficient to produce a $\

  9. Mechanical Properties of Ingot Nb Cavities

    Energy Technology Data Exchange (ETDEWEB)

    Ciovati, Gianluigi; Dhakal, Pashupati; Kneisel, Peter; Mammosser, John; Matalevich, Joseph; Rao Myneni, Ganapati

    2014-07-01

    This contribution presents the results of measurements of the resonant frequency and of strain along the contour of a single-cell cavity made of ingot Nb subjected to increasing uniform differential pressure, up to 6 atm. The data were used to infer mechanical properties of this material after cavity fabrication, by comparison with the results from simulation calculations done with ANSYS. The objective is to provide useful information about the mechanical properties of ingot Nb cavities which can be used in the design phase of SRF cavities intended to be built with this material.

  10. Evaluation of plain abdominal radiographs in the diagnosis of abdominal pain.

    Science.gov (United States)

    Eisenberg, R L; Heineken, P; Hedgcock, M W; Federle, M; Goldberg, H I

    1983-04-01

    In an effort to develop referral criteria for the ordering of abdominal radiographs for patients presenting with abdominal symptoms, we prospectively studied the relation between clinical data and radiographic abnormalities. Of 1780 examinations, 179 (10.0%) showed some radiographic abnormality. If abdominal radiographs would have been limited to those patients who had moderate or severe abdominal tenderness, or to patients with a high clinical suspicion of bowel obstruction, renal or ureteral calculi, trauma, ischemia, or gallbladder disease, regardless of the degree of tenderness, 956 (53.7%) examinations would not have been done. All radiographic abnormalities reflecting a serious pathologic process would have been identified. Only 33 (3.5%) abnormalities of limited significance, almost all localized or generalized ileus, would have been undetected. The adoption of these referral criteria would result in minimal loss of clinically useful information, large financial savings, and a reduction in radiation exposure.

  11. Measurement of luminal nitric oxide in the uterine cavity using a silicon balloon catheter.

    Science.gov (United States)

    Sioutas, Angelos; Gemzell-Danielsson, Kristina; Lundberg, Jon O; Ehrén, Ingrid

    2011-05-31

    The aim of this pilot case-control study was to measure nitric oxide (NO) gas in air incubated in a catheter balloon in the uterus of healthy women and patients with pelvic inflammatory disease, to determine the optimal time of incubation and to find whether NO level rises after manipulation in the uterine cavity. We measured nitric oxide levels in air incubated for 2-10 min in a catheter balloon in the uterine cavity in 6 non pregnant women from 22 to 50 years of age with lower abdominal pain and 10 healthy women with regular menstrual cycles. After an incubation time of just 2 min, intrauterine nitric oxide levels were significantly increased in patients with diagnosed pelvic inflammatory disease compared to healthy women. Uterine nitric oxide levels did not rise after manipulation in the uterine cavity. In conclusion, NO gas can be measured directly in the uterine cavity with a fast, simple, well-tolerated and safe method. The levels of nitric oxide are increased in women diagnosed with pelvic inflammatory disease already after an incubation time of 2 min.

  12. Enteral Feeding in Abdominal Compartment Syndrome

    Directory of Open Access Journals (Sweden)

    Ye. V Grigoryev

    2009-01-01

    Full Text Available Objective: to substantiate the choice of a gastrointestinal tract (GIT function support regimen as a mode for correction of the abdominal compartment syndrome (ACS. Subjects and methods. Forty-three patients with different causes of inadequate GIT function of various origin and ACS (disseminated peritonitis (45%, pancreatitis (24%, and severe concomitant injury (31% were examined. Group 1 (control received complete parenteral nutritional feeding (n=23; APACHE II scores, 21±4; calculated probability of fatal outcome, 33.5%. In Group II (study, complete parenteral feeding in the first 24 hours after stabilization was supplemented with GIT function support with Pepsisorb (Nutricia in doses of 500, 1000, and 1500 ml on days 1, 2, and 3, respectively (n=20; APACHE II scores, 20±6; calculated probability of fatal outcome, 37.1%. During early enteral nutritional support, the SOFA score was significantly less than that in Group 1 on days 2—3; the oxygenation index significantly increased on day 3; the value of intra-abdominal hypertension decreased to the control values. The positive effect of the GIT function support regimen on regression of the multiple organ dysfunction syndrome (MODS was confirmed by the lowered levels of biological markers (von Willebrand factor (WF and endothelin-1 as markers of endothelial damage of MODS. Correlation analysis showed a direct correlation between the markers of endothelial damage and the SOFA scores (r=0.34; p=0.05 for WF and r=0.49;p=0.03 for endothelin. Conclusion. The GIT function support regimen via early enteral alimentation with Peptisorb, which was initiated in the first 24 hours after admission, is able to level off the manifestations of the early stages of the abdominal compartment syndrome, with the acceptable values of oxygen balance and water-electrolyte and osmotic homeostasis being achieved. Key words: abdominal compartment syndrome, nutritional support, biological markers, oxygenation index

  13. Previous Multiple Abdominal Surgeries: A Valid Contraindication to Abdominal Free Flap Breast Reconstruction?

    Science.gov (United States)

    Di Candia, Michele; Asfoor, Ahmed Al; Jessop, Zita M.; Kumiponjera, Devor; Hsieh, Frank; Malata, Charles M.

    2012-01-01

    Presented in part at the following Academic Meetings: 57th Meeting of the Italian Society of Plastic, Reconstructive and Aesthetic Surgery, September 24-27, 2008, Naples, Italy.45th Congress of the European Society for Surgical Research (ESSR), June 9-12, 2010, Geneva, Switzerland.British Association of Plastic Reconstructive and Aesthetic Surgeons Summer Scientific Meeting, June 30-July 2, 2010, Sheffield Hallam University, Sheffield, UK. Background: Patients with previous multiple abdominal surgeries are often denied abdominal free flap breast reconstruction because of concerns about flap viability and abdominal wall integrity. We therefore studied their flap and donor site outcomes and compared them to patients with no previous abdominal surgery to find out whether this is a valid contraindication to the use of abdominal tissue. Patients and Methods: Twenty patients with multiple previous abdominal operations who underwent abdominal free flap breast reconstruction by a single surgeon (C.M.M., 2000-2009) were identified and retrospectively compared with a cohort of similar patients without previous abdominal surgery (sequential allocation control group, n = 20). Results: The index and control groups were comparable in age, body mass index, comorbidities, previous chemotherapy, and RT exposure. The index patients had a mean age of 54 years (r, 42-63) and an average body mass index of 27.5 kg/m2 (r, 22-38). The main previous surgeries were Caesarean sections (19), hysterectomies (8), and cholecystectomies (6). They underwent immediate (n = 9) or delayed (n = 11) reconstructions either unilaterally (n = 18) or bilaterally (n = 2) and comprising 9 muscle-sparing free transverse rectus abdominis muscle and 13 deep inferior epigastric perforator flaps. All flaps were successful, and there were no significant differences in flap and donor site outcomes between the 2 groups after an average follow up of 26 months (r, 10-36). Conclusion: Multiple previous abdominal

  14. Lateral abdominal muscle size at rest and during abdominal drawing-in manoeuvre in healthy adolescents.

    Science.gov (United States)

    Linek, Pawel; Saulicz, Edward; Wolny, Tomasz; Myśliwiec, Andrzej; Kokosz, Mirosław

    2015-02-01

    Lateral abdominal wall muscles in children and adolescents have not been characterised to date. In the present report, we examined the reliability of the ultrasound measurement and thickness of the oblique external muscle (OE), oblique internal muscle (OI) and transverse abdominal muscle (TrA) at rest and during abdominal drawing-in manoeuvre (ADIM) on both sides of the body in healthy adolescents. We also determined possible differences between boys and girls and defined any factors-such as body mass, height and BMI-that may affect the thickness of the abdominal muscles. B-mode ultrasound was used to assess OE, OI and TrA on both sides of the body in the supine position. Ultrasound measurements at rest and during ADIM were reliable in this age group (ICC3,3 > 0.92). OI was always the thickest and TrA the thinnest muscle on both sides of the body. In this group, an identical pattern of the contribution of the individual muscles to the structure of the lateral abdominal wall (OI > OE > TrA) was observed. At rest and during ADIM, no statistically significant side-to-side differences were demonstrated in either gender. The body mass constitutes between 30% and muscles under examination at rest and during ADIM. The structure of lateral abdominal wall in adolescents is similar to that of adults. During ADIM, the abdominal muscles in adolescents react similarly to those in adults. This study provided extensive information regarding the structure of the lateral abdominal wall in healthy adolescents.

  15. Abdominal closed trauma in children. Trauma abdominal cerrado en el niño.

    Directory of Open Access Journals (Sweden)

    Rogelio Rodríguez Castillo

    Full Text Available Blunt abdominal trauma constitutes 90% approximately of the abdominal injuries in children. Due to the augmented size of the child trunk in relation to their extremities, the abdominal lesions are extremely frequents. The abdominal trauma is present in 20-30% of the patients with serious trauma. It's the second cause of death for accidents after the cranial traumatism in the pediatric patient. We presented the Good Clinical Practices Guideline for Blunt Abdominal Trauma, approved by consensus in the 2nd National Good Clinical Practices Workshop in Pediatric Surgery (Manzanillo, Cuba, September 31 - October 3, 2002.

    El trauma abdominal cerrado constituye aproximadamente el 90 % de los traumatismos abdominales en niños. Debido al tamaño aumentado del tronco del niño en relación con sus extremidades las lesiones abdominales son extremadamente frecuentes. El trauma abdominal está presente en el 20-30 % de los pacientes con trauma grave. Es la segunda causa de muerte por accidentes, después del traumatismo craneal, en el paciente pediátrico. Se presenta la Guía de Buenas Prácticas Clínicas para trauma abdominal cerrado, aprobada por consenso en el 2º Taller Nacional de Buenas Prácticas Clínicas en Cirugía Pediátrica (Manzanillo, 31 de septiembre al 3 de octubre del 2002.

  16. Isolated duodenal rupture due to blunt abdominal trauma

    Directory of Open Access Journals (Sweden)

    Celik Atilla

    2006-01-01

    Full Text Available Duodenal rupture following blunt abdominal trauma is rare and it usually seen with other abdominal organ injuries. It represents approximately 2% to 20% of patients with blunt abdominal injury and often occurs after blows to the upper abdomen, or abdominal compression from high-riding seat belts. Two cases of blunt duodenal rupture successfully treated surgically, are presented with their preoperative diagnosis and final out comes.

  17. Diagnostic Accuracy of Secondary Ultrasound Exam in Blunt Abdominal Trauma

    OpenAIRE

    Rajabzadeh Kanafi, Alireza; Giti, Masoumeh; Gharavi, Mohammad Hossein; Alizadeh, Ahmad; Pourghorban, Ramin; Shekarchi, Babak

    2014-01-01

    Background: In stable patients with blunt abdominal trauma, accurate diagnosis of visceral injuries is crucial. Objectives: To determine whether repeating ultrasound exam will increase the sensitivity of focused abdominal sonography for trauma (FAST) through revealing additional free intraperitoneal fluid in patients with blunt abdominal trauma. Patients and Methods: We performed a prospective observational study by performing primary and secondary ultrasound exams in blunt abdominal trauma p...

  18. Abdominal fedme og fedmerelaterede sygdomme hos patienter i almen praksis

    DEFF Research Database (Denmark)

    Haugan, Ketil; Rost, Dan; Knudsen, Nils;

    2010-01-01

    Abdominal obesity is associated with type 2 diabetes, cardiovascular disease, dyslipidemia and hypertension. The prevalence of abdominal obesity and its relationship with these comorbidities have not previously been examined in Danish primary care patients.......Abdominal obesity is associated with type 2 diabetes, cardiovascular disease, dyslipidemia and hypertension. The prevalence of abdominal obesity and its relationship with these comorbidities have not previously been examined in Danish primary care patients....

  19. The role of computed tomography in blunt abdominal trauma in children.

    Science.gov (United States)

    Taylor, G A; Fallat, M E; Potter, B M; Eichelberger, M R

    1988-12-01

    This study was performed in order to test the hypothesis that abdominal computed tomography (CT) can assist in the decision to perform laparotomy in children following blunt trauma to the abdomen. Three hundred forty children with blunt abdominal trauma underwent evaluation with CT. Abdominal injuries were detected in 84 children (25%). These included: 75 injuries to solid viscera in 60 patients (30 splenic, 29 hepatic, 13 renal, and three pancreatic); four injuries to hollow viscera (three small bowel transections, and one rupture of the urinary bladder); and 23 skeletal injuries (21 fractures of the pelvis, and two lumbar spine subluxations). Injury to solid viscera was categorized as minor in 32 (43%), moderate in 18 (24%), or severe in 25 (33%) according to an assessment of the percentage of parenchyma involved. Hemoperitoneum was detected in 42 patients, and characterized as small in 18 (43%), moderate in nine (21%), and large in 15 (36%). CT was useful in establishing the location and extent of injuries, and in detecting the presence of blood or air in the peritoneal cavity. However, the extent of injury to solid viscera detected on CT did not correlate with the need for laparotomy. Of 46 moderate to severe anatomic injuries of the liver, spleen or kidney, only five (9%) required surgical intervention because of persistent bleeding or infection. Although laparotomy occurred more frequently in the presence of a large hemoperitoneum, only 6/24 (25%) with moderate to large hemoperitoneum required surgical exploration. This analysis confirms the usefulness of CT for detection of location and extent of injury in pediatric blunt abdominal trauma.(ABSTRACT TRUNCATED AT 250 WORDS)

  20. Observation of a Flowing Duct in the Abdominal Wall by Using Nanoparticles.

    Science.gov (United States)

    Jang, HyunSuk; Yoon, Joohwan; Gil, HyunJi; Jung, Sharon Jiyoon; Kim, Min-Suk; Lee, Jin-Kyu; Kim, Young-Jae; Soh, Kwang-Sup

    2016-01-01

    The primo vascular system (PVS) is being established as a circulatory system that corresponds to acupuncture meridians. There have been two critical questions in making the PVS accepted as a novel liquid flowing system. The first one was directly to show the flow of liquid in PVS and the second one was to explain why it was not observed in the conventional histological study of animal tissues. Flow in the PVS in the abdominal cavity was previously verified by injecting Alcian blue into a primo node. However, the tracing of the dye to other subsystems of the PVS has not been done. In the current work we injected fluorescent nanoparticles (FNPs) into a primo node and traced them along a primo vessel which was inside a fat tissue in the abdominal wall. Linea alba is a white middle line in the abdominal skin of a mammal and a band of fat tissue is located in parallel to the linea alba in the parietal side of the abdominal wall of a rat. In this fat band a primo vessel runs parallel to the prominent blood vessels in the fat band and is located just inside the parietal peritoneum. About the second question on the reason why the PVS was not in conventional histological study the current work provided the answer. Histological analysis with hematoxyline and eosine, Masson's trichrome, and Toluidine blue could not discriminate the primo vessel even when we knew the location of the PVS by the trace of the FNPs. This clearly explains why the PVS is hard to observe in conventional histology: it is not a matter of resolution but the contrast. The PVS has very similar structure to the connective tissues that surround the PVS. In the current work we propose a method to find the PVS: Observation of mast cell distribution with toluidine blue staining and the PN has a high density of mast cells, while the lymph node has low density.

  1. Observation of a Flowing Duct in the Abdominal Wall by Using Nanoparticles.

    Directory of Open Access Journals (Sweden)

    HyunSuk Jang

    Full Text Available The primo vascular system (PVS is being established as a circulatory system that corresponds to acupuncture meridians. There have been two critical questions in making the PVS accepted as a novel liquid flowing system. The first one was directly to show the flow of liquid in PVS and the second one was to explain why it was not observed in the conventional histological study of animal tissues. Flow in the PVS in the abdominal cavity was previously verified by injecting Alcian blue into a primo node. However, the tracing of the dye to other subsystems of the PVS has not been done. In the current work we injected fluorescent nanoparticles (FNPs into a primo node and traced them along a primo vessel which was inside a fat tissue in the abdominal wall. Linea alba is a white middle line in the abdominal skin of a mammal and a band of fat tissue is located in parallel to the linea alba in the parietal side of the abdominal wall of a rat. In this fat band a primo vessel runs parallel to the prominent blood vessels in the fat band and is located just inside the parietal peritoneum. About the second question on the reason why the PVS was not in conventional histological study the current work provided the answer. Histological analysis with hematoxyline and eosine, Masson's trichrome, and Toluidine blue could not discriminate the primo vessel even when we knew the location of the PVS by the trace of the FNPs. This clearly explains why the PVS is hard to observe in conventional histology: it is not a matter of resolution but the contrast. The PVS has very similar structure to the connective tissues that surround the PVS. In the current work we propose a method to find the PVS: Observation of mast cell distribution with toluidine blue staining and the PN has a high density of mast cells, while the lymph node has low density.

  2. Transversus abdominal plane (TAP block for postoperative pain management: a review [version 1; referees: 2 approved

    Directory of Open Access Journals (Sweden)

    Jan Jakobsson

    2015-11-01

    Full Text Available Transversus abdominal plane (TAP block has a long history and there is currently extensive clinical experience around TAP blocks. The aim of this review is to provide a summary of the present evidence on the effects of TAP block and to provide suggestions for further studies. There are several approaches to performing abdominal wall blocks, with the rapid implementation of ultrasound-guided technique facilitating a major difference in TAP block performance. During surgery, an abdominal wall block may also be applied by the surgeon from inside the abdominal cavity. Today, there are more than 11 meta-analyses providing a compiled evidence base around the effects of TAP block. These analyses include different procedures, different techniques of TAP block administration and, importantly, they compare the TAP block with a variety of alternative analgesic regimes. The effects of TAP block during laparoscopic cholecystectomy seem to be equivalent to local infiltration analgesia and also seem to be beneficial during laparoscopic colon resection. The effects of TAP are more pronounced when it is provided prior to surgery and these effects are local anaesthesia dose-dependent. TAP block seems an interesting alternative in patients with, for example, severe obesity where epidural or spinal anaesthesia/analgesia is technically difficult and/or poses a risk. There is an obvious need for further high-quality studies comparing TAP block prior to surgery with local infiltration analgesia, single-shot spinal analgesia, and epidural analgesia. These studies should be procedure-specific and the effects should be evaluated, both regarding short-term pain and analgesic requirement and also including the effects on postoperative nausea and vomiting, recovery of bowel function, ambulation, discharge, and protracted recovery outcomes (assessed by e.g., postoperative quality of recovery scale.

  3. Comparison of coherently coupled multi-cavity and quantum dot embedded single cavity systems.

    Science.gov (United States)

    Kocaman, Serdar; Sayan, Gönül Turhan

    2016-12-12

    Temporal group delays originating from the optical analogue to electromagnetically induced transparency (EIT) are compared in two systems. Similar transmission characteristics are observed between a coherently coupled high-Q multi-cavity array and a single quantum dot (QD) embedded cavity in the weak coupling regime. However, theoretically generated group delay values for the multi-cavity case are around two times higher. Both configurations allow direct scalability for chip-scale optical pulse trapping and coupled-cavity quantum electrodynamics (QED).

  4. Intra-operative tissue oxygen tension is increased by local insufflation of humidified-warm CO2 during open abdominal surgery in a rat model.

    Directory of Open Access Journals (Sweden)

    Jean K Marshall

    Full Text Available Maintenance of high tissue oxygenation (PtO2 is recommended during surgery because PtO2 is highly predictive of surgical site infection and colonic anastomotic leakage. However, surgical site perfusion is often sub-optimal, creating an obstructive hurdle for traditional, systemically applied therapies to maintain or increase surgical site PtO2. This research tested the hypothesis that insufflation of humidified-warm CO2 into the abdominal cavity would increase sub-peritoneal PtO2 during open abdominal surgery.15 Wistar rats underwent laparotomy under general anesthesia. Three sets of randomized cross-over experiments were conducted in which the abdominal cavity was subjected to alternating exposure to 1 humidified-warm CO2 & ambient air; 2 humidified-warm CO2 & dry-cold CO2; and 3 dry-cold CO2 & ambient air. Sub-peritoneal PtO2 and tissue temperature were measured with a polarographic oxygen probe.Upon insufflation of humidified-warm CO2, PtO2 increased by 29.8 mmHg (SD 13.3; p<0.001, or 96.6% (SD 51.9, and tissue temperature by 3.0°C (SD 1.7 p<0.001, in comparison with exposure to ambient air. Smaller, but significant, increases in PtO2 were seen in experiments 2 and 3. Tissue temperature decreased upon exposure to dry-cold CO2 compared with ambient air (-1.4°C, SD 0.5, p = 0.001.In a rat model, insufflation of humidified-warm CO2 into the abdominal cavity during open abdominal surgery causes an immediate and potentially clinically significant increase in PtO2. The effect is an additive result of the delivery of CO2 and avoidance of evaporative cooling via the delivery of the CO2 gas humidified at body temperature.

  5. Relative Activity of Abdominal Muscles during Commonly Prescribed Strengthening Exercises.

    Science.gov (United States)

    Willett, Gilbert M.; Hyde, Jennifer E.; Uhrlaub, Michael B.; Wendel, Cara L.; Karst, Gregory M.

    2001-01-01

    Examined the relative electromyographic (EMG) activity of upper and lower rectus abdominis (LRA) and external oblique (EOA) muscles during five abdominal strengthening exercises. Isometric and dynamic EMG data indicated that abdominal strengthening exercises activated various abdominal muscle groups. For the LRA and EOA muscle groups, there were…

  6. Abdominal wall paresis as a complication of laparoscopic surgery

    NARCIS (Netherlands)

    G.H. van Ramshorst (Gabrielle); G.J. Kleinrensink (Gert Jan); J.J. Hermans (John); T. Terkivatan (Türkan); J.F. Lange (Johan)

    2009-01-01

    textabstractPurpose: Abdominal wall nerve injury as a result of trocar placement for laparoscopic surgery is rare. We intend to discuss causes of abdominal wall paresis as well as relevant anatomy. Methods: A review of the nerve supply of the abdominal wall is illustrated with a rare case of a patie

  7. Prior Abdominal Surgery Jeopardizes Quality of Resection in Colorectal Cancer

    NARCIS (Netherlands)

    Stommel, M.W.J.; Wilt, J.H.W. de; Broek, R.P.G ten; Strik, C.; Rovers, M.M.; Goor, H. van

    2016-01-01

    BACKGROUND: Prior abdominal surgery increases complexity of abdominal operations. Effort to prevent injury during adhesiolysis might result in less extensive bowel resection in colorectal cancer surgery. The aim of this study was to evaluate the effect of prior abdominal surgery on the outcome of

  8. Diagnostic yield of oesophagogastroduodenoscopy in children with abdominal pain

    Science.gov (United States)

    Abdominal pain is the most common indication for OGD in children. However, existing studies examining the diagnostic outcomes of OGD in children with abdominal pain are limited. We conducted the current study to examine the diagnostic yield of OGD with biopsy in the evaluation of abdominal pain and ...

  9. Interventional management of abdominal sepsis : when and how

    NARCIS (Netherlands)

    van Goor, H

    2002-01-01

    Background: To decide "how and when to treat intra-abdominal infection" is one of the most important challenges for surgeons interested in abdominal sepsis. The minimally invasive approach to intra-abdominal infection, both diagnostic and therapeutic, has gained great popularity in recent years: the

  10. Lateral abdominal wall hernia following blunt trauma - a rare case

    OpenAIRE

    Michael Walsh; Antony Pittathankal; Nnamdi Nwaejike

    2009-01-01

    The presence of superficial bruising, no abnormal signs on abdominal examination and a negative FAST scan of the abdomen may not be enough to rule out intra-abdominal pathology. We report on the usefulness of CT in diagnosing a post-traumatic abdominal wall hernia.

  11. The efficacy of adhesiolysis on chronic abdominal pain

    DEFF Research Database (Denmark)

    Gerner-Rasmussen, Jonas; Burcharth, Jakob; Gögenur, Ismail

    2015-01-01

    INTRODUCTION: Abdominal adhesions are a frequent reason for chronic abdominal pain. The purpose of this systematic review was to investigate the evidence of performing laparoscopic adhesiolysis as a treatment for patients with chronic abdominal pain. METHODS: Medline, Embase, and The Cochrane Cen...

  12. Can release of urinary retention trigger abdominal aortic aneurysm rupture?

    Science.gov (United States)

    Luhmann, Andreas; Powell-Bowns, Matilda; Elseedawy, Emad

    2013-04-04

    Only 50% of abdominal aortic aneurysms present with the classic triad of hypotension, back pain and a pulsatile abdominal mass. This variability in symptoms can delay diagnosis and treatment. We present the case of a patient presenting with a unique combination of symptoms suggesting that decompression of urinary retention can lead to abdominal aortic aneurysm rupture.

  13. Hydrodynamic Drag on Streamlined Projectiles and Cavities

    KAUST Repository

    Jetly, Aditya

    2016-04-19

    The air cavity formation resulting from the water-entry of solid objects has been the subject of extensive research due to its application in various fields such as biology, marine vehicles, sports and oil and gas industries. Recently we demonstrated that at certain conditions following the closing of the air cavity formed by the initial impact of a superhydrophobic sphere on a free water surface a stable streamlined shape air cavity can remain attached to the sphere. The formation of superhydrophobic sphere and attached air cavity reaches a steady state during the free fall. In this thesis we further explore this novel phenomenon to quantify the drag on streamlined shape cavities. The drag on the sphere-cavity formation is then compared with the drag on solid projectile which were designed to have self-similar shape to that of the cavity. The solid projectiles of adjustable weight were produced using 3D printing technique. In a set of experiments on the free fall of projectile we determined the variation of projectiles drag coefficient as a function of the projectiles length to diameter ratio and the projectiles specific weight, covering a range of intermediate Reynolds number, Re ~ 104 – 105 which are characteristic for our streamlined cavity experiments. Parallel free fall experiment with sphere attached streamlined air cavity and projectile of the same shape and effective weight clearly demonstrated the drag reduction effect due to the stress-free boundary condition at cavity liquid interface. The streamlined cavity experiments can be used as the upper bound estimate of the drag reduction by air layers naturally sustained on superhydrophobic surfaces in contact with water. In the final part of the thesis we design an experiment to test the drag reduction capacity of robust superhydrophobic coatings deposited on the surface of various model vessels.

  14. Slow plasmons in grating cavities

    Science.gov (United States)

    Aydinli, Atilla; Karademir, Ertugrul; Balci, Sinan; Kocabas, Coskun

    2016-03-01

    Recent research on surface plasmon polaritons and their applications have brought forward a wealth of information and continues to be of interest to many. In this report, we concentrate on propagating surface plasmon polaritons (SPPs) and their interaction with matter. Using grating based metallic structures, it is possible to control the electrodynamics of propagating SPPs. Biharmonic gratings loaded with periodic Si stripes allow excitation of SPPs that are localized inside the band gap with grating coupling. The cavity state is formed due to periodic effective index modulation obtained by one harmonic of the grating and loaded Si stripes. More complicated grating structures such as metallic Moiré surfaces have also been shown to form a localized state inside the band gap when excited with Kretschmann configuration.

  15. Leaky Modes of Dielectric Cavities

    CERN Document Server

    Mansuripur, Masud; Jakobsen, Per

    2016-01-01

    In the absence of external excitation, light trapped within a dielectric medium generally decays by leaking out (and also by getting absorbed within the medium). We analyze the leaky modes of a parallel-plate slab, a solid glass sphere, and a solid glass cylinder, by examining those solutions of Maxwell's equations (for dispersive as well as non-dispersive media) which admit of a complex-valued oscillation frequency. Under certain circumstances, these leaky modes constitute a complete set into which an arbitrary distribution of the electromagnetic field residing inside a dielectric body can be expanded. We provide completeness proofs, and also present results of numerical calculations that illustrate the relationship between the leaky modes and the resonances of dielectric cavities formed by a simple parallel-plate slab, a glass sphere, and a glass cylinder.

  16. Primary leiomyosarcoma of peritoneal cavity

    Directory of Open Access Journals (Sweden)

    Jyotsna Naresh Bharti

    2014-03-01

    Full Text Available Leiomyosarcomas of soft tissue are the rare tumors and the retroperitoneum is the most common site involved. We report a case of primary leiomyosarcoma of the peritoneal cavity which clinically presented with suprapubic, freely mobile, nontender mass which measured 10×10 cm in size. Contrast enhanced computed tomography revealed well defined heterogenous hypodense solid cystic mass. The mass was surgically excised out in its entirety. The histopathological examination revealed spindle cells arranged in alternating fascicles having pleomorphic nuclei, indistinct margin and eosinophilic cytoplasm with foci of haemorrhage, necrosis and 5-6 mitosis/HPF. The spindle cells were immunoreactive for smooth muscle actin, desmin and negative for S-100, CD-34 and c-kit. Histopathology and immunohistochemistry were helpful in making the final confirmatory diagnosis. Leiomyosarcomas are aggressive tumors, with poor prognosis and often difficult to treat. The survival rates are lowest among all soft tissue sarcomas.

  17. Geophysical observations at cavity collapse

    Science.gov (United States)

    Jousset, Philippe; Bazargan-Sabet, Behrooz; Lebert, François; Bernardie, Séverine; Gourry, Jean-Christophe

    2010-05-01

    In Lorraine region (France) salt layers at about 200 meters depth are exploited by Solvay using solution mining methodology which consists in extracting the salt by dissolution, collapsing the cavern overburden during the exploitation phase and finally reclaiming the landscape by creating a water area. In this process, one of the main challenges for the exploiting company is to control the initial 120-m diameter collapse so as to minimize possible damages. In order to detect potential precursors and understand processes associated with such collapses, a wide series of monitoring techniques including micro seismics, broad-band seismology, hydro-acoustic, electromagnetism, gas probing, automatic leveling, continuous GPS, continuous gravity and borehole extensometry was set-up in the frame of an in-situ study carried out by the "Research Group for the Impact and Safety of Underground Works" (GISOS, France). Equipments were set-up well before the final collapse, giving a unique opportunity to analyze a great deal of information prior to and during the collapse process which has been successfully achieved on February the 13th, 2009 by controlling the cavity internal pressure. In this work, we present the results of data recorded by a network of 3 broadband seismometers, 2 accelerometers, 2 tilt-meters and a continuously gravity meter. We relate the variations of the brine pumping rate with the evolutions of the induced geophysical signals and finally we propose a first mechanical model for describing the controlled collapse. Beyond the studied case, extrapolation of the results obtained might contribute to the understanding of uncontrolled cavity collapses, such as pit-craters or calderas at volcanoes.

  18. [Assessment of endogenous thrombin potential and influence on it of different regimens of heparin therapy in patients with abdominal sepsis].

    Science.gov (United States)

    Gamzatov, Kh A; Gurzhiĭ, D V; Lazarev, S M; Nemestnikov, Iu A; Gurzhiĭ, A A; Panaian, L P; Golovina, O G; Khait, E A; Smirnova, O A; Matvienko, O Iu

    2012-01-01

    Abdominal sepsis (AS) is a systemic inflammatory reaction of organism in response to the development of infectious process in organs of the abdominal cavity. The course of AS is complicated by hypercoagulation syndrome which facilitates progression of endogenous intoxication. The investigation included 26 patients (14 men and 12 women, mean age 65.5 +/- 16.4 years) with AS. The test of thrombin generation (TTG) used in patients with AS allows assessment of changes in the hemostasis system and control of the heparin dose. It was established that TTG revealed elevated endogenous thrombin potential of blood practically in all patients with AS. In the patients given 25 000 IU of heparin the TTG indices showed a reliably decreased endogenous thrombin potential and peak thrombin concentration as compared with a group of patients given 10 000 IU of heparin.

  19. A scheme for implementing quantum game in cavity QED

    Institute of Scientific and Technical Information of China (English)

    CaoShuai; Fang Mao-Fa; Liu Jian-Bin; Wang Xin-Wen; Zheng Xiao-juan

    2009-01-01

    In this paper, we propose a scheme fot implementing quantum game (QG) in cavity quantum electrodynam-ics(QED). In the scheme, the cavity is only virtually excited and thus the proposal is insensitive to the cavity fields states and cavity decay. So our proposal can be experimentally realized in the range of current cavity QED techniques.

  20. Scheme for Implementation of Quantum Game in Cavity QED

    Institute of Scientific and Technical Information of China (English)

    ZHANG Li-Chun; CAO Shu-Ai; WU Yue-Qin; FANG Mao-Fa; LI Huai-Fan; ZHENG Xiao-Juan; ZHAO Ren; WANG Xin-Wen; LI Ze-Hua

    2008-01-01

    We propose an experimentally feasible scheme to implement two-player quantum game in cavity quantum electrodynamics (QED). During the process, the cavity is only virtually excited, thus our scheme is insensitive to the cavity field states and cavity decay. The scheme can be realized in the range of current cavity QED techniques.