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Sample records for hand-assisted laparoscopy hal

  1. Hand-Assisted Laparoscopic (HAL) Multiple Segmental Colorectal Resections: Are They Feasible and Safe?

    Science.gov (United States)

    Taggarshe, Deepa; Attuwaybi, Bashir O; Matier, Brian; Visco, Jeffrey J; Butler, Bryan N

    2015-04-01

    The objective of this study was to evaluate the short-term outcomes of synchronous hand-assisted laparoscopic (HAL) segmental colorectal resections. The surgical options for synchronous colonic pathology include extensive colonic resection with single anastomosis, multiple synchronous segmental resections with multiple anastomoses, or staged resections. Traditionally, multiple open, synchronous, segmental resections have been performed. There is a lack of data on HAL multiple segmental colorectal resections. A retrospective chart review was compiled on all patients who underwent HAL synchronous segmental colorectal resections by all the colorectal surgeons from our Group during the period of 1999 to 2014. Demographics, operative details, and short-term outcomes are reported. During the period, 9 patients underwent HAL synchronous multiple segmental colorectal resections. There were 5 women and 4 men, with median age of 54 (24-83) years and median BMI of 24 (19.8-38.7) kg/m(2). Two patients were on long-term corticosteroid therapy. The median operative time was 210 (120-330) minutes and median operative blood loss was 200 (75-300) mLs. The median duration for return of bowel function was 2 days and the median length of stay was 3.5 days. We had 2 minor wound infections. There were no deaths. Synchronous segmental colorectal resections with anastomoses using the hand-assisted laparoscopic technique are safe. Early conversion to open and use of stomas are advisable in challenging cases.

  2. The Role of Hand-Assisted Laparoscopic Technique in the Age of Single-Incision Laparoscopy: An Effective Alternative to Avoid Open Conversion in Colorectal Surgery.

    Science.gov (United States)

    Jung, Kyung Uk; Yun, Seong Hyeon; Cho, Yong Beom; Kim, Hee Cheol; Lee, Woo Yong; Chun, Ho-Kyung

    2018-04-01

    Continuous efforts to reduce the numbers and size of incisions led to the emergence of a new technique, single-incision laparoscopic surgery (SILS). It has been rapidly accepted as the preferred surgical approach in the colorectal area. In the age of SILS, what is the role of hand-assisted laparoscopic surgery (HALS)? We introduce the way to take advantage of it, as an effective alternative to avoid open conversion. This is a retrospective review of prospectively collected data of SILS colectomies performed by a single surgeon in Samsung Medical Center between August 2009 and December 2012. Out of 631 cases of SILS colectomy, 47 cases needed some changes from the initial approach. Among these, five cases were converted to HALS. Four of them were completed successfully without the need for open conversion. One patient with rectosigmoid colon cancer invading bladder was finally opened to avoid vesical trigone injury. The mean operation time of the 4 patients was 265.0 minutes. The mean estimated blood loss was 587.5 mL. The postoperative complication rate associated with the operation was 25%. Conversion from SILS to HALS in colorectal surgery was feasible and effective. It seemed to add minimal morbidity while preserving advantages of minimally invasive surgery. It could be considered an alternative to open conversion in cases of SILS, especially when the conversion to conventional laparoscopy does not seem to be helpful.

  3. Laparoscopic radical nephrectomy: incorporating advantages of hand assisted and standard laparoscopy.

    Science.gov (United States)

    Ponsky, Lee E; Cherullo, Edward E; Banks, Kevin L W; Greenstein, Marc; Streem, Stevan B; Klein, Eric A; Zippe, Craig D

    2003-06-01

    We present an approach to laparoscopic radical nephrectomy and intact specimen extraction, which incorporates hand assisted and standard laparoscopic techniques. A refined approach to laparoscopic radical nephrectomy is described and our experience is reviewed. A low, muscle splitting Gibson incision is made just lateral to the rectus muscle and the hand port is inserted. A trocar is placed through the hand port and pneumoperitoneum is established. With the laparoscope in the hand port trocar 2 additional trocars are placed under direct vision. The laparoscope is then repositioned through the middle trocar and standard laparoscopic instruments are used through the other 2 trocars including the one in the hand port. If at any time during the procedure the surgeon believes the hand would be useful or needed, the trocar is removed from the hand port and the hand is inserted. This approach has been applied to 7 patients. Mean estimated blood loss was 200 cc (range 50 to 300) and mean operative time was 276.7 minutes (range 247 to 360). Mean specimen weight was 767 gm. (range 538 to 1,170). Pathologically 6 specimens were renal cell carcinoma (grades 2 to 4) and 1 was oncocytoma. Mean length of hospital stay was 3.71 days (range 2 to 7). There were no major complications. We believe that this approach enables the surgeon to incorporate the advantages of the hand assisted and standard laparoscopic approaches.

  4. Radical nephrectomy performed by open, laparoscopy with or without hand-assistance or robotic methods by the same surgeon produces comparable perioperative results

    Directory of Open Access Journals (Sweden)

    Tanya Nazemi

    2006-02-01

    Full Text Available PURPOSE: Radical nephrectomy can be performed using open or laparoscopic (with or without hand assistance methods, and most recently using the da Vinci Surgical Robotic System. We evaluated the perioperative outcomes using a contemporary cohort of patients undergoing radical nephrectomy by one of the above 4 methods performed by the same surgeon. MATERIALS AND METHODS: The relevant clinical information on 57 consecutive patients undergoing radical nephrectomy from September 2000 until July 2004 by a single surgeon was entered in a Microsoft Access DatabaseTM and queried. Following appropriate statistical analysis, p values < 0.05 were considered significant. RESULTS: Of 57 patients, the open, robotic, laparoscopy with or without hand assistance radical nephrectomy were performed in 18, 6, 21, and 12 patients, respectively. The age, sex, body mass index (BMI, incidence of malignancy, specimen and tumor size, tumor stage, Fuhrman grade, hospital stay, change in postoperative creatinine, drop in hemoglobin, and perioperative complications were not significantly different between the methods. While the estimated median blood loss, postoperative narcotic use for pain control, and hospital stay were significantly higher in the open surgery method (p < 0.05, the median operative time was significantly shorter compared to the robotic method (p = 0.02. Operating room costs were significantly higher in the robotic and laparoscopic groups; however, there was no significant difference in total hospital costs between the 4 groups. CONCLUSIONS: The study demonstrates that radical nephrectomy can be safely performed either by open, robotic, or laparoscopic with or without hand assistance methods without significant difference in perioperative complication rates. A larger cohort and longer follow up are needed to validate our findings and establish oncological outcomes.

  5. Comparison of hand-assisted laparoscopy with open total colectomy for slow transit constipation: a retrospective study.

    Science.gov (United States)

    Sheng, Qin Song; Lin, Jian Jiang; Chen, Wen Bin; Liu, Fan Long; Xu, Xiang Ming; Hua, Han Ju; Lin, Cai Zhao; Wang, Jin Hai

    2014-08-01

    To compare the efficacy and safety of hand-assisted laparoscopic colectomy (HALC) and open colectomy (OC) for patients with slow transit constipation (STC). Data of patients with STC who underwent total colectomy from January 2008 to December 2012 were retrospectively reviewed after clinical evaluation and an exclusion of secondary causes. These patients were further divided into the HALC and OC groups. Patients' outcomes, including intraoperative and postoperative data on their recovery and complications were compared between the two groups. A total of 68 patients with STC were finally enrolled in the study, including 32 in the HALC group and 36 in the OC group. The baseline characteristics did not significantly differ between the two groups. Compared with the OC group, patients in the HALC group had a shorter length of incision, a longer operative time and less blood loss volume. There was no conversion to OC for patients undergoing HALC and no intraoperative complications in both groups. Furthermore, after operation, patients in HALC group experienced less pain (3.4 ± 0.7 vs 4.8 ± 1.0), earlier first passage of flatus (58.3 ± 6.3 h vs 73.4 ± 13.0 h), shorter length of postoperative hospital stay (8.8 ± 1.2 days vs 11.3 ± 1.7 days) but higher medical cost (RMB 33 979 ± 3 135 vs RMB 29 828 ± 3 216). The overall postoperative complications and the satisfaction in defecation were comparable in the two groups. HALC is a safe, minimally invasive and effective surgical alternative for treating STC, which is comparable to OC. © 2014 Chinese Medical Association Shanghai Branch, Chinese Society of Gastroenterology, Renji Hospital Affiliated to Shanghai Jiaotong University School of Medicine and Wiley Publishing Asia Pty Ltd.

  6. Hand-assisted laparoscopic surgery and its applications in gynecology

    Directory of Open Access Journals (Sweden)

    Yueqian Wu

    2016-02-01

    Full Text Available Laparoscopic surgery has been used extensively since it was first applied in the 1980s. The advantages are generally accepted and include less pain, smaller incisions, faster recovery, and shorter hospital stays. However, several limitations associated with standard laparoscopic surgery (SLS have become apparent and include the loss of tactile sensation, problems with the removal of bulky and intact specimens, and the restriction of visualization of the entire operating field. These problems with SLS helped to inspire the development of laparoscopically assisted surgery followed by hand-assisted laparoscopic surgery (HALS. In a hand-assisted laparoscopic procedure, an incision is made in the patient’s abdomen. Then, a uniquely designed appliance is introduced into the abdominal cavity through the incision to maintain pneumoperitoneum. With the inserting hand, surgeons can provide manual exposure, traction, palpation, and dissection because of the feedback of tactile sensation. HALS has gained acceptance for a wide range of abdominal procedures in general surgery and urology and is now feasible for complicated surgeries such as splenectomy, nephroureterectomy, and colectomy. It has been demonstrated in numerous specialties that HALS is a safe and efficacious technique that combines the benefits of laparoscopy with the advantages of a conventional laparotomy. Standard laparoscopic surgery also has limitations in gynecological surgery. A patient may have high risks with conventional laparoscopic surgery when she has deep invasive endometriosis, multiple or massive myoma, or dense pelvic adhesions from prior surgery. HALS overcomes many of the aforementioned limitations, has less conversion to open surgery, and broadens the indications for minimally invasive surgery, not only for benign tumors but also for pelvic malignancies.

  7. Hand-assisted laparoscopic splenectomy

    NARCIS (Netherlands)

    Bemelman, W. A.; de Wit, L. T.; Busch, O. R.; Gouma, D. J.

    2000-01-01

    Laparoscopic splenectomy is performed routinely in patients with small and moderately enlarged spleens at specialized centers. Large spleens are difficult to handle laparoscopically and hand-assisted laparoscopic splenectomy might facilitate the procedure through enhanced vascular control, easier

  8. Hand-assisted versus straight laparoscopic sigmoid colectomy on a training simulator: what is the difference? A stepwise comparison of hand-assisted versus straight laparoscopic sigmoid colectomy performance on an augmented reality simulator.

    LENUS (Irish Health Repository)

    Leblanc, Fabien

    2010-12-01

    We hypothesized that simulator-generated metrics and intraoperative errors may be able to differentiate the technical differences between hand-assisted laparoscopic (HAL) and straight laparoscopic (SL) approaches.

  9. HAL/S language specification

    Science.gov (United States)

    Newbold, P. M.

    1974-01-01

    A programming language for the flight software of the NASA space shuttle program was developed and identified as HAL/S. The language is intended to satisfy virtually all of the flight software requirements of the space shuttle. The language incorporates a wide range of features, including applications-oriented data types and organizations, real time control mechanisms, and constructs for systems programming tasks.

  10. Hand-assisted laparoscopic surgery for colorectal malignancies

    International Nuclear Information System (INIS)

    Memon, M.A.; Fitzgibbons, R.J.

    2004-01-01

    Objective: To report our initial experience with hand-assisted laparoscopic surgery (HALS) for colorectal malignancies using a Specially designed laparoscopic hand cannula. Patients and Methods: Nine caucasians patients with colorectal malignancies underwent HALS which included 02 right hemicolectomies, 01 transverse colectomy, 03 sigmoid colectomies, 01 anterior resection and 02 low anterior resections. Results: There were 4 males and 5 females. The mean length of incision for placement of the cannula was 7 cms (range 7-8 cms). The mean operating time was 180 minutes. Postoperatively on an average patients were ambulatory by day 2 (range 1-4) and taking oral fluids by day 3 (range 1-4). There were no conversions to laparotomy. Furthermore there was no operative mortality and no complication directly related to the use of the device. Conclusion: HALS appears to be a useful adjuvant for laparoscopic colectomy due to advantages provided by tactile sensation. A curative resection for malignancy can be performed without compromising oncological principles. (author)

  11. Programming in HAL/S

    Science.gov (United States)

    Ryer, M. J.

    1979-01-01

    Intended as an introduction to programming in HAL/S, this manual is organized as a tutorial aid which may be used as part of a self-study program or in conjunction with a course of twenty to forty classroom hours over a period of one to two weeks. A number of corrections to the first edition are incorporated into the text along with a chapter on FIXED data and an additional appendix on FORMAT I/0.

  12. Hal Koch

    DEFF Research Database (Denmark)

    Møller, Jes Fabricius

    2007-01-01

    Skal man forstå Hal Koch må han sættes ind i sin kontekst, politisk, teologisk og kulturelt. Han var præget af det 19. århundredes borgerlige dannelseskultur, socialkonservatismen og den lutherske statstanke.......Skal man forstå Hal Koch må han sættes ind i sin kontekst, politisk, teologisk og kulturelt. Han var præget af det 19. århundredes borgerlige dannelseskultur, socialkonservatismen og den lutherske statstanke....

  13. Laparoscopic hand-assisted pancreaticoduodenectomy: initial UK experience.

    Science.gov (United States)

    Ammori, B J

    2004-04-01

    By and large, the limited world experience with laparoscopic pancreaticoduodenectomy (PD) has been unfavorable, but the laparoscopic hand-assisted approach to PD has recently shown promising results. We report the first successful UK experience with laparoscopic hand-assisted PD (LHAPD). A 62-year-old man who presented with painless obstructive jaundice was found at endoscopy, to have an ampullary tumor. Preoperative biopsy specimens confirmed the diagnosis of an adenocarcinoma, and CT showed no evidence of either vascular involvement or metastatic disease. A staging laparoscopy showed no intraabdominal metastases, and an LHAPD was performed using a Gelport. The intraoperative course was uneventful. Two units of blood were transfused intraoperatively, but no postoperative blood transfusion was required. The operative time was 11 h (plus a 30-min break). The patients postoperative recovery was uneventful except for superficial pressure sores over the buttocks and elbows. The patient resumed oral fluid and dietary intake on the 1st and 3rd postoperative days, respectively, and was discharged from hospital on the 9th postoperative day. Histology demonstrated an ampullary adenocarcinoma with clear resection margins and involvement of two of the 13 lymph nodes examined. At 2-month follow-up, the patient remains well and is receiving adjuvant chemotherapy. LHAPD achieves good oncological clearance and can be performed safely in selected patients. The early promising results with this approach will undoubtedly encourage wider adoption of this procedure and are likely to widen the selection criteria.

  14. HAL/S-360-user's manual

    Science.gov (United States)

    Kole, R. E.; Helmers, P. H.; Hotz, R. L.

    1974-01-01

    This is a reference document to be used in the process of getting HAL/S programs compiled and debugged on the IBM 360 computer. Topics from the operating system communication to interpretation of debugging aids are discussed. Features of HAL programming system that have specific system/360 dependencies are presented.

  15. Hand-assisted hybrid laparoscopic-robotic total proctocolectomy with ileal pouch--anal anastomosis.

    Science.gov (United States)

    Morelli, Luca; Guadagni, Simone; Mariniello, Maria Donatella; Furbetta, Niccolò; Pisano, Roberta; D'Isidoro, Cristiano; Caprili, Giovanni; Marciano, Emanuele; Di Candio, Giulio; Boggi, Ugo; Mosca, Franco

    2015-08-01

    Few studies have reported minimally invasive total proctocolectomy with ileal pouch-anal anastomosis (IPAA) for ulcerative colitis (UC) and familial adenomatous polyposis (FAP). We herein report a novel hand-assisted hybrid laparoscopic-robotic technique for patients with FAP and UC. Between February 2010 and March 2014, six patients underwent hand-assisted hybrid laparoscopic-robotic total proctocolectomy with IPAA. The abdominal colectomy was performed laparoscopically with hand assistance through a transverse suprapubic incision, also used to fashion the ileal pouch. The proctectomy was carried out with the da Vinci Surgical System. The IPAA was hand-sewn through a trans-anal approach. The procedure was complemented by a temporary diverting loop ileostomy. The mean hand-assisted laparoscopic surgery (HALS) time was 154.6 (±12.8) min whereas the mean robotic time was 93.6 (±8.1) min. In all cases, a nerve-sparing proctectomy was performed, and no conversion to traditional laparotomy was required. The mean postoperative hospital stay was 13.2 (±7.4) days. No anastomotic leakage was observed. To date, no autonomic neurological disorders have been observed with a mean of 5.8 (±1.3) bowel movements per day. The hand-assisted hybrid laparoscopic-robotic approach to total proctocolectomy with IPAA has not been previously described. Our report shows the feasibility of this hybrid approach, which surpasses most of the limitations of pure laparoscopic and robotic techniques. Further experience is necessary to refine the technique and fully assess its potential advantages.

  16. Hand-assisted Approach as a Model to Teach Complex Laparoscopic Hepatectomies: Preliminary Results.

    Science.gov (United States)

    Makdissi, Fabio F; Jeismann, Vagner B; Kruger, Jaime A P; Coelho, Fabricio F; Ribeiro-Junior, Ulysses; Cecconello, Ivan; Herman, Paulo

    2017-08-01

    Currently, there are limited and scarce models to teach complex liver resections by laparoscopy. The aim of this study is to present a hand-assisted technique to teach complex laparoscopic hepatectomies for fellows in liver surgery. Laparoscopic hand-assisted approach for resections of liver lesions located in posterosuperior segments (7, 6/7, 7/8, 8) was performed by the trainees with guidance and intermittent intervention of a senior surgeon. Data as: (1) percentage of time that the senior surgeon takes the surgery as main surgeon, (2) need for the senior surgeon to finish the procedure, (3) necessity of conversion, (4) bleeding with hemodynamic instability, (5) need for transfusion, (6) oncological surgical margins, were evaluated. In total, 12 cases of complex laparoscopic liver resections were performed by the trainee. All cases included deep lesions situated on liver segments 7 or 8. The senior surgeon intervention occurred in a mean of 20% of the total surgical time (range, 0% to 50%). A senior intervention >20% was necessary in 2 cases. There was no need for conversion or reoperation. Neither major bleeding nor complications resulted from the teaching program. All surgical margins were clear. This preliminary report shows that hand-assistance is a safe way to teach complex liver resections without compromising patient safety or oncological results. More cases are still necessary to draw definitive conclusions about this teaching method.

  17. Hand-assisted laparoscopic Hassab's procedure for esophagogastric varices with portal hypertension.

    Science.gov (United States)

    Kobayashi, Takashi; Miura, Kohei; Ishikawa, Hirosuke; Soma, Daiki; Zhang, Zhengkun; Ando, Takuya; Yuza, Kizuki; Hirose, Yuki; Katada, Tomohiro; Takizawa, Kazuyasu; Nagahashi, Masayuki; Sakata, Jun; Kameyama, Hitoshi; Wakai, Toshifumi

    2017-10-23

    Laparoscopic surgery for patients with portal hypertension is considered to be contraindicated because of the high risk of massive intraoperative hemorrhaging. However, recent reports have shown hand-assisted laparoscopic surgery for devascularization and splenectomy to be a safe and effective method of treating esophagogastric varices with portal hypertension. The aim of this study is to evaluate the efficacy of hand-assisted laparoscopic devascularization and splenectomy (HALS Hassab's procedure) for the treatment of esophagogastric varices with portal hypertension. From 2009 to 2016, seven patients with esophagogastric varices with portal hypertension were treated with hand-assisted laparoscopic devascularization and splenectomy in our institute. Four men and three women with a median age of 61 years (range 35-71) were enrolled in this series. We retrospectively reviewed the medical records for the perioperative variables, postoperative mortality and morbidity, and postoperative outcomes of esophagogastric varices. The median operative time was 455 (range 310-671) min. The median intraoperative blood loss was 695 (range 15-2395) ml. The median weight of removed spleen was 507 (range 242-1835) g. The conversion rate to open surgery was 0%. The median postoperative hospital stay was 21 (range 13-81) days. During a median 21 (range 3-43) months of follow-up, the mortality rate was 0%. Four postoperative complications (massive ascites, enteritis, intra-abdominal abscess, and intestinal ulcer) were observed in two patients. Those complications were treated successfully without re-operation. Esophagogastric varices in all patients disappeared or improved. Bleeding from esophagogastric varices was not observed during the follow-up period. Although our data are preliminary, hand-assisted laparoscopic devascularization and splenectomy proved an effective procedure for treating esophagogastric varices in patients with portal hypertension.

  18. HAL/S-360 compiler system specification

    Science.gov (United States)

    Johnson, A. E.; Newbold, P. N.; Schulenberg, C. W.; Avakian, A. E.; Varga, S.; Helmers, P. H.; Helmers, C. T., Jr.; Hotz, R. L.

    1974-01-01

    A three phase language compiler is described which produces IBM 360/370 compatible object modules and a set of simulation tables to aid in run time verification. A link edit step augments the standard OS linkage editor. A comprehensive run time system and library provide the HAL/S operating environment, error handling, a pseudo real time executive, and an extensive set of mathematical, conversion, I/O, and diagnostic routines. The specifications of the information flow and content for this system are also considered.

  19. Two-handed assisted laparoscopic surgery: Evaluation in an animal model

    Directory of Open Access Journals (Sweden)

    Eduardo Sanchez-de-Badajoz

    2014-10-01

    Full Text Available Purposes To evaluate in an animal model the feasibility of a novel concept of hand-assisted surgery consisting of inserting two hands into the abdomen instead of one. The chosen procedure was retroperitoneal lymph node dissection (L-RPLND that was performed in five pigs. Surgical Technique A Pfannestiel and a transverse epigastric incisions were made through which both hands were introduced. The scope was inserted through the umbilicus. The colon was moved medially and the dissection was performed as in open surgery using short conventional surgical instruments. Comments The surgery was fulfilled easily and safely in quite a similar way as in open surgery. Two-handed laparoscopy may be indicated in cases that still today require an open approach as apparently makes the operation easier and significantly shortens the surgery time. However, new opinions and trials are required.

  20. HAL/S language specification. Version IR-542

    Science.gov (United States)

    1980-01-01

    The formal HAL/S language specification is documented with particular referral to the essentials of HAL/S syntax and semantics. The language is intended to satisfy virtually all of the flight software requirements of NASA programs. To achieve this, HAL/S incorporates a wide range of features, including applications oriented data types and organizations, real time control mechanisms, and constructs for systems programming tasks.

  1. Development of five-finger robotic hand using master-slave control for hand-assisted laparoscopic surgery.

    Science.gov (United States)

    Yoshida, Koki; Yamada, Hiroshi; Kato, Ryu; Seki, Tatsuya; Yokoi, Hiroshi; Mukai, Masaya

    2016-08-01

    This study aims to develop a robotic hand as a substitute for a surgeon's hand in hand-assisted laparoscopic surgery (HALS). We determined the requirements for the proposed hand from a surgeon's motions in HALS. We identified four basic behaviors: "power grasp," "precision grasp," "open hand for exclusion," and "peace sign for extending peritoneum." The proposed hand had the minimum necessary DOFs for performing these behaviors, five fingers as in a human's hand, a palm that can be folded when a surgeon inserts the hand into the abdomen, and an arm for adjusting the hand's position. We evaluated the proposed hand based on a performance test and a physician's opinions, and we confirmed that it can grasp organs.

  2. HAL/S programmer's guide. [space shuttle flight software language

    Science.gov (United States)

    Newbold, P. M.; Hotz, R. L.

    1974-01-01

    HAL/S is a programming language developed to satisfy the flight software requirements for the space shuttle program. The user's guide explains pertinent language operating procedures and described the various HAL/S facilities for manipulating integer, scalar, vector, and matrix data types.

  3. HAL/S programmer's guide. [for space shuttle program

    Science.gov (United States)

    Newbold, P. M.; Hotz, R. L.

    1974-01-01

    This programming language was developed for the flight software of the NASA space shuttle program. HAL/S is intended to satisfy virtually all of the flight software requirements of the space shuttle. To achieve this, HAL/s incorporates a wide range of features, including applications-oriented data types and organizations, real time control mechanisms, and constructs for systems programming tasks. As the name indicates, HAL/S is a dialect of the original HAL language previously developed. Changes have been incorporated to simplify syntax, curb excessive generality, or facilitate flight code emission.

  4. HAL/S - The programming language for Shuttle

    Science.gov (United States)

    Martin, F. H.

    1974-01-01

    HAL/S is a higher order language and system, now operational, adopted by NASA for programming Space Shuttle on-board software. Program reliability is enhanced through language clarity and readability, modularity through program structure, and protection of code and data. Salient features of HAL/S include output orientation, automatic checking (with strictly enforced compiler rules), the availability of linear algebra, real-time control, a statement-level simulator, and compiler transferability (for applying HAL/S to additional object and host computers). The compiler is described briefly.

  5. HAND-ASSISTED LAPAROSCOPIC DONOR NEPHRECTOMY. THE FIRST RUSSIAN EXPERIENCE

    Directory of Open Access Journals (Sweden)

    S. V. Gautier

    2010-01-01

    Full Text Available The first experience of hand-assisted laparoscopic donor nephrectomy is described in the article. A new technique of the operation and it’s results are discussed in details. Advantages of this type of the operation in comparison with open and full laparoscopic techniques are presented. 

  6. Design of a verifiable subset for HAL/S

    Science.gov (United States)

    Browne, J. C.; Good, D. I.; Tripathi, A. R.; Young, W. D.

    1979-01-01

    An attempt to evaluate the applicability of program verification techniques to the existing programming language, HAL/S is discussed. HAL/S is a general purpose high level language designed to accommodate the software needs of the NASA Space Shuttle project. A diversity of features for scientific computing, concurrent and real-time programming, and error handling are discussed. The criteria by which features were evaluated for inclusion into the verifiable subset are described. Individual features of HAL/S with respect to these criteria are examined and justification for the omission of various features from the subset is provided. Conclusions drawn from the research are presented along with recommendations made for the use of HAL/S with respect to the area of program verification.

  7. Hand-assisted right laparoscopic nephrectomy in living donor

    Directory of Open Access Journals (Sweden)

    Fernando Meyer

    2005-02-01

    Full Text Available OBJECTIVE: To assess results obtained with the authors' technique of right hand-assisted laparoscopic nephrectomy in living kidney donors. MATERIALS AND METHODS: We retrospectively analyzed 16 kidney donors who underwent hand-assisted right laparoscopic nephrectomy from February 2001 to July 2004. Among these patients, 7 were male and 9 were female, with mean age ranging between 22 and 58 years (mean 35.75. RESULTS: Surgical time ranged from 55 to 210 minutes (mean 127.81 min and warm ischemia time from 2 to 6 minutes (mean 3.78 min with mean intra-operative blood loss estimated at 90.62 mL. There was no need for conversion in any case. Discharge from hospital occurred between the 3rd and 6th days (mean 3.81. On the graft assessment, immediate diuresis was seen in 15 cases (93.75% and serum creatinine on the 7th post-operative day was 1.60 mg/dL on average. Renal vein thrombosis occurred in 1 patient (6.25% who required graft removal, and lymphocele was seen in 1 recipient (6.25%. CONCLUSION: Hand-assisted right laparoscopic nephrectomy in living donors is a safe and effective alternative to open nephrectomy. Despite a greater technical difficulty, the procedure presented low postoperative morbidity providing good morphological and functional quality of the graft on the recipient.

  8. Guidelines for emergency laparoscopy

    Directory of Open Access Journals (Sweden)

    Sauerland Stefan

    2006-10-01

    Full Text Available Abstract Acute abdominal pain is a leading symptom in many surgical emergency patients. Laparoscopy allows for accurate diagnosis and immediate therapy of many intraabdominal pathologies. The guidelines of the EAES (European Association for Endoscopic Surgery provides scientifically founded recommendations about the role of laparoscopy in the different situations. Generally, laparoscopy is well suited for the therapy of the majority of diseases that cause acute abdominal pain.

  9. Evolution of robotic nephrectomy for living donation: from hand-assisted to totally robotic technique.

    Science.gov (United States)

    Giacomoni, Alessandro; Di Sandro, Stefano; Lauterio, Andrea; Concone, Giacomo; Mangoni, Iacopo; Mihaylov, Plamen; Tripepi, Matteo; De Carlis, Luciano

    2014-09-01

    The application of robotic-assisted surgery offers EndoWrist instruments and 3-D visualization of the operative field, which are improvements over traditional laparoscopy. The results of the few studies published so far have shown that living donor nephrectomy using the robot-assisted technique is safe, feasible, and offers advantages to patients. Since November 2009, 16 patients have undergone robotic-assisted living donor nephrectomy at our Institute. Patients were divided into two groups according to the surgical technique adopted for the procedure: Group A, hand-assisted robotic nephrectomy (eight patients); Group B, totally robotic nephrectomy (eight patients). Intra-operative bleeding was similar in the two groups (90 vs 100 mL for Group A and B, respectively). Median warm ischemia time was significantly shorter in Group A (2.3 vs 5.1 min for Group A and B, respectively, P-value = 0.05). Switching to the open procedure was never required. Median operative time was not significantly longer in Group A than Group B (275 min vs 250 min, respectively). Robotic assisted living kidney recovery is a safe and effective procedure. Considering the overall technical, clinical, and feasibility aspects of living kidney donation, we believe that the robotic assisted technique is the method of choice for surgeon's comfort and donors' safety. Copyright © 2014 John Wiley & Sons, Ltd.

  10. Initial experience with hand-assisted laparoscopic donor nephrectomy

    DEFF Research Database (Denmark)

    Wiborg, Majken Højrup; Toft, Anja; Jahn, Henrik

    2017-01-01

    -38 kg/m²) in males. The median intraoperative bleeding was 175 ml. The median warm ischaemia time was 3.2 min (1.5-6.7 min). The median operative time was 230 min (161-360 min). The median hospital stay was 4 days (2-10 days). Thirty donors (28%) had 34 early complications. Six donors (6%) needed...... recipients had a functional transplant after 1 year. CONCLUSION: Hand-assisted donor nephrectomy is a safe procedure. Potential candidates should be advised...

  11. Endowrist versus wrist: a case-controlled study comparing robotic versus hand-assisted laparoscopic surgery for rectal cancer.

    Science.gov (United States)

    Koh, Frederick H X; Tan, Ker-Kan; Lieske, Bettina; Tsang, Marianne L; Tsang, Charles B; Koh, Dean C

    2014-10-01

    Laparoscopic total mesorectal excision (TME) remains a technically challenging procedure. This study aims to compare the surgical outcomes of the robotic-assisted laparoscopic (RAL) versus hand-assisted laparoscopic (HAL) techniques in performing TME for patients with rectal cancers. A retrospective review of all patients who underwent RAL TME for rectal cancers was performed. These cases were matched for age, sex, and stage of malignancy with patients who underwent HAL TME. Data collected included age, sex, American Society of Anesthesiologists scores, comorbid conditions, types of surgical resections and operative times, perioperative complications, length of hospital stays, and histopathologic outcomes were analyzed. From August 2008 to August 2011, 19 patients, with a median age of 62 (range, 47 to 92) years underwent RAL TME. Eight (42.1%) patients received neoadjuvant chemoradiotherapy. The median docking and operative times were 10 (range, 3 to 34) and 390 (range, 289 to 771) minutes, respectively. There was 1 (5.3%) conversion to open surgery. The grade of mesorectal excision was histopathologically reported as complete in all 19 cases. Positive circumferential margin was reported in 1 (5.3%) patient.Comparing the 2 groups, more patients in the RAL group received neoadjuvant chemoradiotherapy (8 vs. 3; P=0.048). The operative times were longer in the RAL group (390 vs. 225 min; P<0.001). A higher proportion of patients in the HAL group required conversion to open surgery (5 vs. 1; P=0.180) and developed perioperative morbidities (3 vs. 7; P=0.269). The median length of hospitalization was comparable between both groups (RAL: 7 vs. HAL: 6 d; P=0.476).The procedural cost was significantly higher in the RAL group (US$12,460 vs. US$8560; P<0.001), whereas the nonprocedural cost remained comparable between the 2 groups (RAL: US$4470 vs. HAL: US$4500; P=0.729). RAL TME is associated with lower conversion and morbidity rates compared with HAL TME. The longer

  12. SUMC/MPOS/HAL interface study

    Science.gov (United States)

    Saponaro, J. A.; Kosmala, A. L.

    1973-01-01

    The implementation of the HAL/S language on the IBM-360, and in particular the mechanization of its real time, I/O, and error control statements within the OS-360 environment is described. The objectives are twofold: (1) An analysis and general description of HAL/S real time, I/O, and error control statements and the structure required to mechanize these statements. The emphasis is on describing the logical functions performed upon execution of each HAL statement rather than defining whether it is accomplished by the compiler or operating system. (2) An identification of the OS-360 facilities required during execution of HAL/S code as implemented for the current HAL/S-360 compiler; and an evaluation of the aspects involved with interfacing HAL/S with the SUMC operating system utilizing either the HAL/S-360 compiler or by designing a new HAL/S-SUMC compiler.

  13. HAL/S programmer's guide. [for space shuttle project

    Science.gov (United States)

    Newbold, P. M.; Hotz, R. L.

    1974-01-01

    The structure and symbology of the HAL/S programming language are described; this language is to be used among the flight software for the space shuttle project. The data declaration, input/output statements, and replace statements are also discussed.

  14. AN ADA LINEAR ALGEBRA PACKAGE MODELED AFTER HAL/S

    Science.gov (United States)

    Klumpp, A. R.

    1994-01-01

    This package extends the Ada programming language to include linear algebra capabilities similar to those of the HAL/S programming language. The package is designed for avionics applications such as Space Station flight software. In addition to the HAL/S built-in functions, the package incorporates the quaternion functions used in the Shuttle and Galileo projects, and routines from LINPAK that solve systems of equations involving general square matrices. Language conventions in this package follow those of HAL/S to the maximum extent practical and minimize the effort required for writing new avionics software and translating existent software into Ada. Valid numeric types in this package include scalar, vector, matrix, and quaternion declarations. (Quaternions are fourcomponent vectors used in representing motion between two coordinate frames). Single precision and double precision floating point arithmetic is available in addition to the standard double precision integer manipulation. Infix operators are used instead of function calls to define dot products, cross products, quaternion products, and mixed scalar-vector, scalar-matrix, and vector-matrix products. The package contains two generic programs: one for floating point, and one for integer. The actual component type is passed as a formal parameter to the generic linear algebra package. The procedures for solving systems of linear equations defined by general matrices include GEFA, GECO, GESL, and GIDI. The HAL/S functions include ABVAL, UNIT, TRACE, DET, INVERSE, TRANSPOSE, GET, PUT, FETCH, PLACE, and IDENTITY. This package is written in Ada (Version 1.2) for batch execution and is machine independent. The linear algebra software depends on nothing outside the Ada language except for a call to a square root function for floating point scalars (such as SQRT in the DEC VAX MATHLIB library). This program was developed in 1989, and is a copyrighted work with all copyright vested in NASA.

  15. HAL/S-360 compiler test activity report

    Science.gov (United States)

    Helmers, C. T.

    1974-01-01

    The levels of testing employed in verifying the HAL/S-360 compiler were as follows: (1) typical applications program case testing; (2) functional testing of the compiler system and its generated code; and (3) machine oriented testing of compiler implementation on operational computers. Details of the initial test plan and subsequent adaptation are reported, along with complete test results for each phase which examined the production of object codes for every possible source statement.

  16. HAL/S-FC compiler system specifications

    Science.gov (United States)

    1976-01-01

    This document specifies the informational interfaces within the HAL/S-FC compiler, and between the compiler and the external environment. This Compiler System Specification is for the HAL/S-FC compiler and its associated run time facilities which implement the full HAL/S language. The HAL/S-FC compiler is designed to operate stand-alone on any compatible IBM 360/370 computer and within the Software Development Laboratory (SDL) at NASA/JSC, Houston, Texas.

  17. Evaluation of verifiability in HAL/S. [programming language for aerospace computers

    Science.gov (United States)

    Young, W. D.; Tripathi, A. R.; Good, D. I.; Browne, J. C.

    1979-01-01

    The ability of HAL/S to write verifiable programs, a characteristic which is highly desirable in aerospace applications, is lacking since many of the features of HAL/S do not lend themselves to existing verification techniques. The methods of language evaluation are described along with the means in which language features are evaluated for verifiability. These methods are applied in this study to various features of HAL/S to identify specific areas in which the language fails with respect to verifiability. Some conclusions are drawn for the design of programming languages for aerospace applications and ongoing work to identify a verifiable subset of HAL/S is described.

  18. Laparoscopy After Previous Laparotomy

    Directory of Open Access Journals (Sweden)

    Zulfo Godinjak

    2006-11-01

    Full Text Available Following the abdominal surgery, extensive adhesions often occur and they can cause difficulties during laparoscopic operations. However, previous laparotomy is not considered to be a contraindication for laparoscopy. The aim of this study is to present that an insertion of Veres needle in the region of umbilicus is a safe method for creating a pneumoperitoneum for laparoscopic operations after previous laparotomy. In the last three years, we have performed 144 laparoscopic operations in patients that previously underwent one or two laparotomies. Pathology of digestive system, genital organs, Cesarean Section or abdominal war injuries were the most common causes of previouslaparotomy. During those operations or during entering into abdominal cavity we have not experienced any complications, while in 7 patients we performed conversion to laparotomy following the diagnostic laparoscopy. In all patients an insertion of Veres needle and trocar insertion in the umbilical region was performed, namely a technique of closed laparoscopy. Not even in one patient adhesions in the region of umbilicus were found, and no abdominal organs were injured.

  19. Theoretical investigation of isomerism in dimers (HBO)2, (HBS)2, (HAlO)2 and (HAlS)2

    International Nuclear Information System (INIS)

    Zyubina, T.S.; Charkin, O.P.

    1991-01-01

    Using several basic sets and taking into account electron correlation, non-empiric calculations of the structure and relative stability of (HBO) 2 , (HBS) 2 , (HAlO) 2 and (HAlS) 2 dimers were made. Isomers of (HA) 2 Y 2 structure (A = B, Al; Y O,S) have the highest stability, isomers of A 2 (YH) 2 structure are more than 20 kcal/mol less stable. High potential barrier hampers transition frome one isomer to the other. Stability of (HA) 2 Y 2 dimer to decomposition into monomers (HAY+HAY) increases in the series HBS-HBO-HAlS-HAlO

  20. Evaluation of HAL/S language compilability using SAMSO's Compiler Writing System (CWS)

    Science.gov (United States)

    Feliciano, M.; Anderson, H. D.; Bond, J. W., III

    1976-01-01

    NASA/Langley is engaged in a program to develop an adaptable guidance and control software concept for spacecraft such as shuttle-launched payloads. It is envisioned that this flight software be written in a higher-order language, such as HAL/S, to facilitate changes or additions. To make this adaptable software transferable to various onboard computers, a compiler writing system capability is necessary. A joint program with the Air Force Space and Missile Systems Organization was initiated to determine if the Compiler Writing System (CWS) owned by the Air Force could be utilized for this purpose. The present study explores the feasibility of including the HAL/S language constructs in CWS and the effort required to implement these constructs. This will determine the compilability of HAL/S using CWS and permit NASA/Langley to identify the HAL/S constructs desired for their applications. The study consisted of comparing the implementation of the Space Programming Language using CWS with the requirements for the implementation of HAL/S. It is the conclusion of the study that CWS already contains many of the language features of HAL/S and that it can be expanded for compiling part or all of HAL/S. It is assumed that persons reading and evaluating this report have a basic familiarity with (1) the principles of compiler construction and operation, and (2) the logical structure and applications characteristics of HAL/S and SPL.

  1. Comparison of donor, and early and late recipient outcomes following hand assisted and laparoscopic donor nephrectomy.

    Science.gov (United States)

    Lucas, Steven M; Liaw, Aron; Mhapsekar, Rishi; Yelfimov, Daniel; Goggins, William C; Powelson, John A; Png, Keng Siang; Sundaram, Chandru P

    2013-02-01

    While laparoscopic donor nephrectomy has encouraged living kidney donation, debate exists about the safest laparoscopic technique. We compared purely laparoscopic and hand assisted laparoscopic donor nephrectomies in terms of donor outcome, early graft function and long-term graft outcome. We reviewed the records of consecutive laparoscopic and hand assisted laparoscopic donor nephrectomies performed by a single surgeon from 2002 to 2011. Donor operative time and perioperative morbidity were compared. Early graft function for kidneys procured by each technique was evaluated by rates of delayed graft function, need for dialysis and recipient discharge creatinine. Long-term outcomes were evaluated by graft function. A total of 152 laparoscopic donor nephrectomies were compared with 116 hand assisted laparoscopic donor nephrectomies. Hand assisted procedures were more often done for the right kidney (41.1% vs 17.1%, p recipient outcomes were also similar. Delayed function occurred after 0% hand assisted vs 0.9% purely laparoscopic nephrectomies, dialysis was required in 0.9% vs 1.7% and rejection episodes developed in 9.7% vs 18.4% (p >0.05). At last followup the organ was nonfunctioning in 6.1% of hand assisted and 7.7% of purely laparoscopic cases (p >0.05). The recipient glomerular filtration rate at discharge home was similar in the 2 groups. Hand assisted laparoscopic donor nephrectomy had shorter warm ischemia time but perioperative donor morbidity and graft outcome were comparable. The choice of technique should be based on patient and surgeon preference. Copyright © 2013 American Urological Association Education and Research, Inc. Published by Elsevier Inc. All rights reserved.

  2. Advancing HAL to an operational status

    Science.gov (United States)

    1974-01-01

    The development of the HAL language and the compiler implementation of the mathematical subset of the language have been completed. On-site support, training, and maintenance of this compiler were enlarged to broaden the implementation of HAL to include all features of the language specification for NASA manned space usage. A summary of activities associated with the HAL compiler for the UNIVAC 1108 is given.

  3. Vector-matrix-quaternion, array and arithmetic packages: All HAL/S functions implemented in Ada

    Science.gov (United States)

    Klumpp, Allan R.; Kwong, David D.

    1986-01-01

    The HAL/S avionics programmers have enjoyed a variety of tools built into a language tailored to their special requirements. Ada is designed for a broader group of applications. Rather than providing built-in tools, Ada provides the elements with which users can build their own. Standard avionic packages remain to be developed. These must enable programmers to code in Ada as they have coded in HAL/S. The packages under development at JPL will provide all of the vector-matrix, array, and arithmetic functions described in the HAL/S manuals. In addition, the linear algebra package will provide all of the quaternion functions used in Shuttle steering and Galileo attitude control. Furthermore, using Ada's extensibility, many quaternion functions are being implemented as infix operations; equivalent capabilities were never implemented in HAL/S because doing so would entail modifying the compiler and expanding the language. With these packages, many HAL/S expressions will compile and execute in Ada, unchanged. Others can be converted simply by replacing the implicit HAL/S multiply operator with the Ada *. Errors will be trapped and identified. Input/output will be convenient and readable.

  4. Hand-assisted retroperitoneoscopic versus standard laparoscopic donor nephrectomy: HARP-trial

    Directory of Open Access Journals (Sweden)

    Alwayn Ian PJ

    2010-03-01

    Full Text Available Abstract Background Transplantation is the only treatment offering long-term benefit to patients with chronic kidney failure. Live donor nephrectomy is performed on healthy individuals who do not receive direct therapeutic benefit of the procedure themselves. In order to guarantee the donor's safety, it is important to optimise the surgical approach. Recently we demonstrated the benefit of laparoscopic nephrectomy experienced by the donor. However, this method is characterised by higher in hospital costs, longer operating times and it requires a well-trained surgeon. The hand-assisted retroperitoneoscopic technique may be an alternative to a complete laparoscopic, transperitoneal approach. The peritoneum remains intact and the risk of visceral injuries is reduced. Hand-assistance results in a faster procedure and a significantly reduced operating time. The feasibility of this method has been demonstrated recently, but as to date there are no data available advocating the use of one technique above the other. Methods/design The HARP-trial is a multi-centre randomised controlled, single-blind trial. The study compares the hand-assisted retroperitoneoscopic approach with standard laparoscopic donor nephrectomy. The objective is to determine the best approach for live donor nephrectomy to optimise donor's safety and comfort while reducing donation related costs. Discussion This study will contribute to the evidence on any benefits of hand-assisted retroperitoneoscopic versus standard laparoscopic donor nephrectomy. Trial Registration Dutch Trial Register NTR1433

  5. S-HAL : safety handbook for locals.

    Science.gov (United States)

    2014-01-01

    The Safety Handbook for Locals (S-HAL) is intended to be a comprehensive : traffic safety resource for all local communities in Missouri, be it cities or : counties. The S-HAL mirrors the national Highway Safety Manual (HSM) : (AASHTO, 2010) in using...

  6. GOAL-to-HAL translation study

    Science.gov (United States)

    Flanders, J. H.; Helmers, C. T.; Stanten, S. F.

    1973-01-01

    This report deals with the feasibility, problems, solutions, and mapping of a GOAL language to HAL language translator. Ground Operations Aerospace Language, or GOAL, is a test-oriented higher order language developed by the John F. Kennedy Space Center to be used in checkout and launch of the space shuttle. HAL is a structured higher order language developed by the Johnson Space Center to be used in writing the flight software for the onboard shuttle computers. Since the onboard computers will extensively support ground checkout of the space shuttle, and since these computers and the software development facilities on the ground use the HAL language as baseline, the translation of GOAL to HAL becomes significant. The issue of feasibility was examined and it was found that a GOAL to HAL translator is feasible. Special problems are identified and solutions proposed. Finally, examples of translation are provided for each category of complete GOAL statement.

  7. Assessment of comparative skills between hand-assisted and straight laparoscopic colorectal training on an augmented reality simulator.

    Science.gov (United States)

    Leblanc, F; Delaney, C P; Neary, P C; Rose, J; Augestad, K M; Senagore, A J; Ellis, C N; Champagne, B J

    2010-09-01

    The aim of this study was to compare skills sets during a hand-assisted and straight laparoscopic colectomy on an augmented reality simulator. Twenty-nine surgeons, assigned randomly in 2 groups, performed laparoscopic sigmoid colectomies on a simulator: group A (n = 15) performed hand-assisted then straight procedures; group B (n = 14) performed straight then hand-assisted procedures. Groups were compared according to prior laparoscopic colorectal experience, performance (time, instrument path length, and instrument velocity changes), technical skills, and operative error. Prior laparoscopic colorectal experience was similar in both groups. Both groups had better performances with the hand-assisted approach, although technical skill scores were similar between approaches. The error rate was higher with the hand-assisted approach in group A, but similar between both approaches in group B. These data define the metrics of performance for hand-assisted and straight laparoscopic colectomy on an augmented reality simulator. The improved scores with the hand-assisted approach suggest that with this simulator a hand-assisted model may be technically easier to perform, although it is associated with increased intraoperative errors.

  8. Hand-assisted laparoscopic liver resection using Habib's technique: early experience.

    Science.gov (United States)

    Vávra, Petr; Ihnat, Peter; Vavrova, Michaela; Martinek, Lubomir; Dostalik, Jan; Habib, Nagy

    2012-03-01

    Hand-assisted laparoscopic liver surgery, a newly developed technique based on an innovative concept, has proved useful and safe for a variety of less invasive hepatectomies. Radiofrequency-assisted hepatic resection has been reported to be safe, associated with minimal morbidity and mortality and decreased intraoperative blood loss and transfusion requirements. We describe how we perform hand-assisted laparoscopic radiofrequency-assisted hepatic resection using a bipolar radiofrequency device. The use of the hand port has allowed the surgeon to use his hand in direct liver manipulation, mobilization, and retraction. It was also useful for tactile tumour localization. Radiofrequency-assisted hepatic parenchymal transection was performed on 15 patients using a bipolar device (Habib 4X) with minimal blood loss (74 ml), and very decent operative and resection times (92 min, 33 min respectively). This combined procedure offers a safe, effective and rapid liver resection technique. This might encourage surgeons to perform a minimally invasive approach for liver resection more frequently.

  9. Integrated verification and testing system (IVTS) for HAL/S programs

    Science.gov (United States)

    Senn, E. H.; Ames, K. R.; Smith, K. A.

    1983-01-01

    The IVTS is a large software system designed to support user-controlled verification analysis and testing activities for programs written in the HAL/S language. The system is composed of a user interface and user command language, analysis tools and an organized data base of host system files. The analysis tools are of four major types: (1) static analysis, (2) symbolic execution, (3) dynamic analysis (testing), and (4) documentation enhancement. The IVTS requires a split HAL/S compiler, divided at the natural separation point between the parser/lexical analyzer phase and the target machine code generator phase. The IVTS uses the internal program form (HALMAT) between these two phases as primary input for the analysis tools. The dynamic analysis component requires some way to 'execute' the object HAL/S program. The execution medium may be an interpretive simulation or an actual host or target machine.

  10. An Ada Linear-Algebra Software Package Modeled After HAL/S

    Science.gov (United States)

    Klumpp, Allan R.; Lawson, Charles L.

    1990-01-01

    New avionics software written more easily. Software package extends Ada programming language to include linear-algebra capabilities similar to those of HAL/S programming language. Designed for such avionics applications as Space Station flight software. In addition to built-in functions of HAL/S, package incorporates quaternion functions used in Space Shuttle and Galileo projects and routines from LINPAK solving systems of equations involving general square matrices. Contains two generic programs: one for floating-point computations and one for integer computations. Written on IBM/AT personal computer running under PC DOS, v.3.1.

  11. Current status of the HAL/S compiler on the Modcomp classic 7870 computer

    Science.gov (United States)

    Lytle, P. J.

    1981-01-01

    A brief history of the HAL/S language, including the experience of other users of the language at the Jet Propulsion Laboratory is presented. The current status of the compiler, as implemented on the Modcomp 7870 Classi computer, and future applications in the Deep Space Network (DSN) are discussed. The primary applications in the DSN will be in the Mark IVA network.

  12. Renal artery aneurysm in hand-assisted laparoscopic donor nephrectomy: case report.

    Science.gov (United States)

    Maciel, R F; Branco, A J; Branco, A W; Guterres, J C; Silva, A E; Ramos, L B; Rost, C; Vieira, C A; Cicogna, P E S; Daudt, C A; Deboni, L M; Vieira, M A; Luz, H A; Vieira, J A

    2003-12-01

    We report a living donor who underwent laparoscopic nephrectomy using a hand-assisted device (HALD). At preoperative arteriography the donor showed a renal artery aneurysm. The patient was a 37-year-old female, 166 cm height, white, weighing 87 kg, HLA identical to the recipient. HALD was indicated due to the better visualization of renal pedicle and greater security in an obese patient. Renal artery aneurysm is a rare condition, with many possible complications. The method proved to be adequate and safe for donor nephrectomy, despite a renal artery aneurysm.

  13. Laparoscopy in the acute abdomen.

    Science.gov (United States)

    Navez, Benoit; Navez, Julie

    2014-02-01

    Laparoscopy has become a routine procedure in the management of acute abdominal disease and can be considered both an excellent therapeutic and additional diagnostic tool in selected cases. However, a high level of expertise in laparoscopic and emergency surgery is required. Hemodynamic instability, huge abdominal distension, fecal peritonitis and perforated cancer are relative contraindications for the laparoscopic approach. In recent years, abdominal emergencies have increasingly been managed successfully by laparoscopy. In acute appendicitis, acute cholecystitis and perforated peptic ulcer, randomized controlled trials have proven that the laparoscopic approach is as safe and as effective as open surgery, with fewer complications and a quicker postoperative recovery. Other indications such as blunt and penetrating trauma to the abdomen, small bowel occlusion and perforated diverticular disease are under debate, indicating that more randomized controlled trials comparing laparoscopic and open surgery are still necessary. Copyright © 2013 Elsevier Ltd. All rights reserved.

  14. Hand-assisted bilateral nephrectomy in a patient with adult polycystic kidney disease

    Directory of Open Access Journals (Sweden)

    Marcello Alves Pinto

    Full Text Available CONTEXT: Dominantly autosomal polycystic disease is characterized by multiple bilateral and non-functional cysts, which lead to progressive kidney failure. OBJECTIVE: Our objective was to report on a case of hand-assisted bilateral nephrectomy in a 28-year-old female patient with adult polycystic disease and recurring pyelonephritis in a kidney transplant program. CASE REPORT: A hand-assisted bilateral nephrectomy was performed through a supra-umbilical median incision of approximately 6 cm, and with 3 ports of 10 mm. The length of the surgery was 3 hours and 15 minutes. The kidneys were removed after the aspiration of some cysts through the supra-umbilical incision. Pain control was achieved via the use of analgesics. The blood loss during surgery was 160 ml. During the postoperative period, the patient developed right-side pneumothorax, which was drained with no further occurrence. This drain was kept in place for 48 hours. The length of hospitalization was 4 days.

  15. The programming language HAL: A specification

    Science.gov (United States)

    1971-01-01

    HAL accomplishes three significant objectives: (1) increased readability, through the use of a natural two-dimensional mathematical format; (2) increased reliability, by providing for selective recognition of common data and subroutines, and by incorporating specific data-protect features; (3) real-time control facility, by including a comprehensive set of real-time control commands and signal conditions. Although HAL is designed primarily for programming on-board computers, it is general enough to meet nearly all the needs in the production, verification and support of aerospace, and other real-time applications.

  16. Oxygen isotopic anomalies in Allende inclusion HAL

    International Nuclear Information System (INIS)

    Lee, T.; Mayeda, T.K.; Clayton, R.N.

    1980-01-01

    The oxygen isotopic composition has been measured on the constituent phases of Allende inclusion HAL, which has unusual mineralogical, chemical, and calcium isotopic compositions. The oxygen in HAL is heterogeneous, with the rim showing more ''normal'' composition and the hibonite core showing large deviation from both the terrestrial material and the usual inclusions. The observed pattern indicates that HAL is a bona fide and more devious member of the rare ''FUN'' family, whose isotopic composition is characterized by correlated nuclear effects and extreme mass fractionation. The data imply that HAL has suffered a large oxygen mass fractionation of 25% 0 per mass unit, followed by exchange with oxygen in a second reservoir. The present experiment supports the identification of two distinct reservoirs from which all refractory inclusions in carbonaceous meteorites derived their oxygen. The required fractionation process seems to operate according to the volatility of various elements and could have been caused by evaporation during a heating event. Nuclear anomalies can be produced in the same heating event if the progenitors of the refractory inclusions were macroscopic aggregates of tiny pre-solar interstellar dust grains and if these grains were destroyed differentially during the evaporation

  17. Speaking Personally--With Hal Markowitz

    Science.gov (United States)

    Pittman, Von

    2012-01-01

    This article presents an interview with Hal Markowitz, a veteran distance educator whose experience in the field is both deep and broad. Building on bachelor's and master's degrees at the University of Florida and his doctorate at Columbia University, Markowitz served in leadership roles in several professional organizations and directed distance…

  18. Introduction of hand-assisted retroperitoneoscopic living donor nephrectomy at Karolinska University Hospital Huddinge.

    Science.gov (United States)

    Gjertsen, H; Sandberg, A-K A; Wadström, J; Tydén, G; Ericzon, B-G

    2006-10-01

    Living donor kidney transplantation accounts for about 50% of the total number of renal transplantations at our center. From 1999 through 2005, 75 out of 220 living donor nephrectomies were performed with a laparoscopic technique (LLDN). In June 2005, we introduced the technique of hand-assisted retroperitoneoscopic nephrectomy (HARS) for living donors. Since the introduction until the end of 2005, 11 out of 18 living donor nephrectomies (LDN) were performed with HARS. Reduced operation time was observed for the HARS group (mean, 166 minutes) compared with the LLDN (mean, 244 minutes). Two grafts showed delayed function, one in the LLND group and one in the HARS group. No major perioperative or postoperative complications were observed in the HARS group, whereas one patient who underwent LLDN developed severe pancreatitis. So far in our hands HARS is a fast and safe procedure with results comparable with open LDN. Compared to LLDN, we experienced reduced operation time together with the advantage of retroperitoneal access.

  19. Laparoscopic hand-assisted adrenalectomy for a 20 cm benign tumor.

    Science.gov (United States)

    Popescu, I; Tomulescu, V; Hrehoret, D; Popescu, A; Herlea, V

    2007-01-01

    Since its introduction in 1992, laparoscopic adrenalectomy (LA) has become the technique of choice in the surgical treatment of both secreting or non-secreting benign adrenal pathology. Although traditionally, laparoscopic approach was recommended only for tumor sizes less than 6-8 cm--as larger tumors were known to have an increased risk of malignancy--the currently growing experience and improvement of surgical techniques has allowed for an extension of the therapeutic indication, as shown by the recent case report of LA use for a benign 22 cm tumor (1). We report the case of a young patient operated in our Department for a benign 20 cm adrenal tumor for which laparoscopic "hand-assisted" adrenalectomy yielded a good postoperative outcome and minimal complications.

  20. Role of laparoscopy in peritonitis.

    Science.gov (United States)

    Sangrasi, Ahmed Khan; Talpu, K Altaf Hussain; Kella, Nandlal; Laghari, Abdul Aziz; Rehman Abbasi, Mujeeb; Naeem Qureshi, Jawaid

    2013-07-01

    Laparoscopy has gained clinical acceptance in many subspecialties in the last decade. The conventional open surgery for peritonitis carries significant morbidity and mortality. The present study was done to extend and evaluate benefits of minimally invasive surgery in this subset of patients. This was a prospective study spanning over a period of four years. All those patients diagnosed as having peritonitis on clinical assessment and preoperative investigations and those who were stable enough haemodynamically were included in this study. After initial resuscitation for few hours, they underwent diagnostic and therapeutic laparoscopy to identify the cause of peritonitis and to confirm the pathology. All cases were done under general anesthesia, using three standard ports at appropriate sites according to pathology. Patients were treated by different procedures either laparoscopically or with laparoscopic assistance after diagnosis. Operative and post operative data was collected and analyzed. Ninety two cases of peritonitis underwent diagnostic and therapeutic laparoscopy. Mean age of patient was 46.5 years. 24 patients were diagnosed as perforated duodenal, in 14 (58.3%) patients laparoscopic suture repair was done and in 8 (33.3%) small upper midline incision was given and perforation was repaired. Out of 32 patients having perforated appendix, 25 (78.1%) patients laparoscopic appendectomy was done while in 7 (21.8%) perforation was dealt by laparoscopic assistance. Out of 14 patients of ileal perforation 6 (42.8%) with minimal contamination laparoscopic suture was applied, while in 8 (57.1%), perforated loop was brought out by making small window and perforation was closed. All 22 patients with pelvic sepsis needed only aspiration of pus and peritoneal lavage. Only one patient died post operatively and 2 (2.1%) patients developed fistula. 6 (6.5%) patients developed port site infection. Laparoscopic management is feasible, safe and effective surgical option for

  1. [Diagnostic laparoscopy in acute abdomen].

    Science.gov (United States)

    Keller, R; Kleemann, M; Hildebrand, P; Roblick, U J; Bruch, H-P

    2006-11-01

    Acute abdomen is not a disease in itself but a description of a complex of symptoms combined with severe abdominal pain developed within a time frame of less than 24 h. All strategies for the management of acute abdomen underline the need for an interdisciplinary approach to diagnosis and therapy. This requires focused and intelligent use of efficient diagnostic procedures. Diagnostic laparoscopy may be a key to solving the diagnostic dilemma of unspecific acute abdomen. Furthermore, it allows not only direct inspection of the abdominal cavity but also surgical intervention, if needed. In particular the rate of negative laparotomies can be reduced.

  2. Effect of HALS on radiation discoloration of PE

    International Nuclear Information System (INIS)

    Wang Huiliang; Wang Chun; Chen Wenxiu

    2001-01-01

    The effects of hindered amine light stabilizers (HALS) on the radiation-induced discoloration of polyethylene (PE) are studied by measuring the yellowness index (YI) of PE. It is found that all the HALS used are effective in preventing PE from radiation-induced discoloration. The YI of PE added pentamethyl HALS (PMPM, PPMPM) is a little higher than that of PE added corresponding tetramethyl HALS (TMPM, PTMPM) when radiation dose is low than 100 kGy, but when the radiation dose is higher than 100 kGy, the YI of PE added pentamethyl HALS is lower. Pentamethyl HALS is more effective in preventing PE from radiation-induced discoloration when radiation dose is higher. It is also found that polymeric HALS is more effective in preventing PE from radiation-induced discoloration than corresponding monomeric HALS when radiation dose is higher than 200 kGy. The formation of alkyl free radical, carbonyl after irradiation is measured. It is found that the relative concentration of free radical formed in PE added TMPM is higher than that of PE added PMPM when radiation dose is relatively high. The carbonyl index of PE containing pentamethyl HALS is less than that of PE containing tetramethyl HALS when radiation is relatively low, but the results is contrary when radiation dose is relatively high. It is believed that HALS prevents PE from radiation-induced discoloration by scavenging free radicals formed in irradiated PE

  3. Origin of the X-Hal (Hal = Cl, Br) bond-length change in the halogen-bonded complexes.

    Science.gov (United States)

    Wang, Weizhou; Hobza, Pavel

    2008-05-01

    The origin of the X-Hal bond-length change in the halogen bond of the X-Hal...Y type has been investigated at the MP2(full)/6-311++G(d,p) level of theory using a natural bond orbital analysis, atoms in molecules procedure, and electrostatic potential fitting methods. Our results have clearly shown that various theories explaining the nature of the hydrogen bond cannot be applied to explain the origin of the X-Hal bond-length change in the halogen bond. We provide a new explanation for this change. The elongation of the X-Hal bond length is caused by the electron-density transfer to the X-Hal sigma* antibonding orbital. For the blue-shifting halogen bond, the electron-density transfer to the X-Hal sigma* antibonding orbital is only of minor importance; it is the electrostatic attractive interaction that causes the X-Hal bond contraction.

  4. Three-dimensional laparoscopy vs 2-dimensional laparoscopy with high-definition technology for abdominal surgery

    DEFF Research Database (Denmark)

    Fergo, Charlotte; Burcharth, Jakob; Pommergaard, Hans-Christian

    2017-01-01

    BACKGROUND: This systematic review investigates newer generation 3-dimensional (3D) laparoscopy vs 2-dimensional (2D) laparoscopy in terms of error rating, performance time, and subjective assessment as early comparisons have shown contradictory results due to technological shortcomings. DATA...... Central Register of Controlled Trials database. CONCLUSIONS: Of 643 articles, 13 RCTs were included, of which 2 were clinical trials. Nine of 13 trials (69%) and 10 of 13 trials (77%) found a significant reduction in performance time and error, respectively, with the use of 3D-laparoscopy. Overall, 3D......-laparoscopy was found to be superior or equal to 2D-laparoscopy. All trials featuring subjective evaluation found a superiority of 3D-laparoscopy. More clinical RCTs are still awaited for the convincing results to be reproduced....

  5. Development of a support software system for real-time HAL/S applications

    Science.gov (United States)

    Smith, R. S.

    1984-01-01

    Methodologies employed in defining and implementing a software support system for the HAL/S computer language for real-time operations on the Shuttle are detailed. Attention is also given to the management and validation techniques used during software development and software maintenance. Utilities developed to support the real-time operating conditions are described. With the support system being produced on Cyber computers and executable code then processed through Cyber or PDP machines, the support system has a production level status and can serve as a model for other software development projects.

  6. Laparoscopic hand-assisted versus robotic-assisted laparoscopic sleeve gastrectomy: experience of 103 consecutive cases.

    Science.gov (United States)

    Kannan, Umashankkar; Ecker, Brett L; Choudhury, Rashikh; Dempsey, Daniel T; Williams, Noel N; Dumon, Kristoffel R

    2016-01-01

    Laparoscopic sleeve gastrectomy has become a stand-alone procedure in the treatment of morbid obesity. There are very few reports on the use of robotic approach in sleeve gastrectomy. The purpose of this retrospective study is to report our early experience of robotic-assisted laparoscopic sleeve gastrectomy (RALSG) using a proctored training model with comparison to an institutional cohort of patients who underwent laparoscopic hand-assisted sleeve gastrectomy (LASG). University hospital. The study included 108 patients who underwent sleeve gastrectomy either via the laparoscopic-assisted or robot-assisted approach during the study period. Of these 108 patients, 62 underwent LASG and 46 underwent RALSG. The console surgeon in the RALSG is a clinical year 4 (CY4) surgery resident. All CY4 surgery residents received targeted simulation training before their rotation. The console surgeon is proctored by the primary surgeon with assistance as needed by the second surgeon. The patients in the robotic and laparoscopic cohorts did not have a statistical difference in their demographic characteristics, preoperative co-morbidities, or complications. The mean operating time did not differ significantly between the 2 cohorts (121 min versus 110 min, P = .07). Patient follow-up in the LSG and RALSG were 91% and 90% at 3 months, 62% and 64% at 6 months, and 60% and 55% at 1 year, respectively. The mean percentage estimated weight loss (EWL%) at 3 months, 6 months, and 1 year was greater in the robotic group but not statistically significant (27 versus 22 at 3 mo [P = .05] and 39 versus 34 at 6 mo [P = .025], 57 versus 48 at 1 yr [P = .09]). There was no mortality in either group. Early results of our experience with RALSG indicate low perioperative complication rates and comparable weight loss with LASG. The concept of a stepwise education model needs further validation with larger studies. Copyright © 2016 American Society for Bariatric Surgery. Published by Elsevier Inc

  7. Hysterosalpingography and laparoscopy in infertile women

    International Nuclear Information System (INIS)

    Konarzewska, J.; Bianek-Bodzak, A.; Mielcarek, P.; Kobierski, J.

    2009-01-01

    Background: Despite dynamic development of diagnostic imaging methods and endoscopic procedures, X-ray hysterosalpingography remains the basic diagnostic procedure when anatomical cause of infertility is suspected. The aim of the study was to assess the correlation between HSG results and laparoscopy findings, especially in infertile women with normal results of hysterosalpingography. Material/Methods: The results of HSG and laparoscopies performed between 2002 and 2005 years in 53 infertile women were analyzed retrospectively. The indication for HSG was primary infertility in 44 cases and secondary infertility in 9 cases.Results: The result of HSG was normal in 51%. Pathological findings were observed in 49% of HSG and in 93% of laparoscopies. The most common pathological findings observed during laparoscopy were tubal occlusion (26% cases) and endometriosis (25% cases). Polycystic ovaries and myomas were observed in 20% of the performed laparoscopies. HSG and laparoscopy yield consistent results in evaluation of tubal patency (p < 0.001). Conclusions: HSG remains the method of first choice in the diagnostics of uterine malformations and tubal diseases as causes of infertility. When mechanical factors of female infertility are suspected, HSG allows the optimal choice of more invasive procedure. (authors)

  8. Lipopolysaccharide induces amyloid formation of antimicrobial peptide HAL-2.

    Science.gov (United States)

    Wang, Jiarong; Li, Yan; Wang, Xiaoming; Chen, Wei; Sun, Hongbin; Wang, Junfeng

    2014-11-01

    Lipopolysaccharide (LPS), the important component of the outer membrane of Gram-negative bacteria, contributes to the integrity of the outer membrane and protects the cell against bactericidal agents, including antimicrobial peptides. However, the mechanisms of interaction between antimicrobial peptides and LPS are not clearly understood. Halictines-2 (HAL-2), one of the novel antimicrobial peptides, was isolated from the venom of the eusocial bee Halictus sexcinctus. HAL-2 has exhibited potent antimicrobial activity against Gram-positive and Gram-negative bacteria and even against cancer cells. Here, we studied the interactions between HAL-2 and LPS to elucidate the antibacterial mechanism of HAL-2 in vitro. Our results show that HAL-2 adopts a significant degree of β-strand structure in the presence of LPS. LPS is capable of inducing HAL-2 amyloid formation, which may play a vital role in its antimicrobial activity. Copyright © 2014 Elsevier B.V. All rights reserved.

  9. HgSe(Te)-HgHal2 systems

    International Nuclear Information System (INIS)

    Pan'ko, V.V.; Khudolij, V.A.; Voroshilov, Yu.V.

    1989-01-01

    Using the methods of differential thermal and X-ray phase analyses the character of chemical interaction in the systems HgTe(Se)-HgHal 2 , where Hal is Cl, Br, I, is investigated. Formation of compounds Hg 3 Se 2 Hal 2 , Hg 3 Te 2 Hal 2 , Hg 3 TeCl 4 and Hg 3 TeBr 4 in these systems is established. The phase diagrams of the studied systems are presented. The parameters of elementary cells of the compounds with the unknown structure, as well as their unknown physicochemical properties, are determined

  10. A new MRI land surface model HAL

    Science.gov (United States)

    Hosaka, M.

    2011-12-01

    A land surface model HAL is newly developed for MRI-ESM1. It is used for the CMIP simulations. HAL consists of three submodels: SiByl (vegetation), SNOWA (snow) and SOILA (soil) in the current version. It also contains a land coupler LCUP which connects some submodels and an atmospheric model. The vegetation submodel SiByl has surface vegetation processes similar to JMA/SiB (Sato et al. 1987, Hirai et al. 2007). SiByl has 2 vegetation layers (canopy and grass) and calculates heat, moisture, and momentum fluxes between the land surface and the atmosphere. The snow submodel SNOWA can have any number of snow layers and the maximum value is set to 8 for the CMIP5 experiments. Temperature, SWE, density, grain size and the aerosol deposition contents of each layer are predicted. The snow properties including the grain size are predicted due to snow metamorphism processes (Niwano et al., 2011), and the snow albedo is diagnosed from the aerosol mixing ratio, the snow properties and the temperature (Aoki et al., 2011). The soil submodel SOILA can also have any number of soil layers, and is composed of 14 soil layers in the CMIP5 experiments. The temperature of each layer is predicted by solving heat conduction equations. The soil moisture is predicted by solving the Darcy equation, in which hydraulic conductivity depends on the soil moisture. The land coupler LCUP is designed to enable the complicated constructions of the submidels. HAL can include some competing submodels (precise and detailed ones, and simpler ones), and they can run at the same simulations. LCUP enables a 2-step model validation, in which we compare the results of the detailed submodels with the in-situ observation directly at the 1st step, and follows the comparison between them and those of the simpler ones at the 2nd step. When the performances of the detailed ones are good, we can improve the simpler ones by using the detailed ones as reference models.

  11. Continued advancement of the programming language HAL to an operational status

    Science.gov (United States)

    1971-01-01

    The continued advancement of the programming language HAL to operational status is reported. It is demonstrated that the compiler itself can be written in HAL. A HAL-in-HAL experiment proves conclusively that HAL can be used successfully as a compiler implementation tool.

  12. Three-dimensional laparoscopy: Principles and practice

    Directory of Open Access Journals (Sweden)

    Rakesh Y Sinha

    2017-01-01

    Full Text Available The largest challenge for laparoscopic surgeons is the eye–hand coordination within a three-dimensional (3D scene observed on a 2D display. The 2D view on flat screen laparoscopy is cerebrally intensive. The loss of binocular vision on a 2D display causes visual misperceptions, mainly loss of depth perception and adds to the surgeon's fatigue. This compromises the safety of laparoscopy. The 3D high-definition view with great depth perception and tactile feedback makes laparoscopic surgery more acceptable, safe and cost-effective. It improves surgical precision and hand–eye coordination, conventional and all straight stick instruments can be used, capital expenditure is less and recurring cost and annual maintenance cost are less. In this article, we have discussed the physics of 3D laparoscopy, principles of depth perception, and the different kinds of 3D systems available for laparoscopy. We have also discussed our experience of using 3D laparoscopy in over 2000 surgeries in the last 4 years.

  13. 76 FR 19350 - Truax, Hal D.; Notice of Filing

    Science.gov (United States)

    2011-04-07

    ... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket No. ID-6528-000] Truax, Hal D.; Notice of Filing Take notice that on April 1, 2011, Hal D. Truax submitted for filing, an application for authority to hold interlocking positions, pursuant to section 305(b) of the Federal Power Act, 16 U.S.C...

  14. Prognostic significance of diagnostic laparoscopy for spontaneous fertility

    NARCIS (Netherlands)

    Mol, B. W.; Swart, P.; Bossuyt, P. M.; van der Veen, F.

    1999-01-01

    OBJECTIVE: To determine the prognostic significance of laparoscopy results for fertility outcome. STUDY DESIGN: Consecutive patients undergoing hysterosalpingography and laparoscopy for subfertility in our department between May 1985 and November 1987 were identified from medical records. The impact

  15. Haloacyl complexes of boron, [(CF3)3BC(O)Hal]- (Hal=F, Cl, Br, I).

    Science.gov (United States)

    Finze, Maik; Bernhardt, Eduard; Willner, Helge; Lehmann, Christian W

    2005-11-04

    The haloacyltris(trifluoromethyl)borate anions [(CF3)3BC(O)Hal]- (Hal=F, Cl, Br, I) have been synthesized by reacting (CF3)3BCO with either MHal (M=K, Cs; Hal=F) in SO2 or MHal (M=[nBu4N]+, [Et4N]+, [Ph4P]+; Hal=Cl, Br, I) in dichloromethane. Metathesis reactions of the fluoroacyl complex with Me3SiHal (Hal=Cl, Br, I) led to the formation of its higher homologues. The thermal stabilities of the haloacyltris(trifluoromethyl)borates decrease from the fluorine to the iodine derivative. The chemical reactivities decrease in the same order as demonstrated by a series of selected reactions. The new [(CF3)3BC(O)Hal]- (Hal=F, Cl, Br) salts are used as starting materials in the syntheses of novel compounds that contain the (CF3)3B-C fragment. All borate anions [(CF3)3BC(O)Hal]- (Hal=F, Cl, Br, I) have been characterized by multinuclear NMR spectroscopy (11B, 13C, 17O, 19F) and vibrational spectroscopy. [PPh4][(CF3)3BC(O)Br] crystallizes in the monoclinic space group P2/c (no. 13) and the bond parameters are compared with those of (CF3)3BCO and K[(CF3)3BC(O)F]. The interpretation of the spectroscopic and structural data are supported by DFT calculations [B3LYP/6-311+G(d)].

  16. Experience with gynaecological laparoscopy in a tertiary hospital ...

    African Journals Online (AJOL)

    All the case notes of patients that had diagnostic laparoscopy during the stated period were retrieved and analyzed. Results: A total of 975 gynaecological ... The mean duration of hospital stay was 1.9 ±0.9days, making our laparoscopy, therefore, not completely an outpatient procedure. Conclusion: Diagnostic laparoscopy ...

  17. The current matrix elements from HAL QCD method

    Science.gov (United States)

    Watanabe, Kai; Ishii, Noriyoshi

    2018-03-01

    HAL QCD method is a method to construct a potential (HAL QCD potential) that reproduces the NN scattering phase shift faithful to the QCD. The HAL QCD potential is obtained from QCD by eliminating the degrees of freedom of quarks and gluons and leaving only two particular hadrons. Therefor, in the effective quantum mechanics of two nucleons defined by HAL QCD potential, the conserved current consists not only of the nucleon current but also an extra current originating from the potential (two-body current). Though the form of the two-body current is closely related to the potential, it is not straight forward to extract the former from the latter. In this work, we derive the the current matrix element formula in the quantum mechanics defined by the HAL QCD potential. As a first step, we focus on the non-relativistic case. To give an explicit example, we consider a second quantized non-relativistic two-channel coupling model which we refer to as the original model. From the original model, the HAL QCD potential for the open channel is constructed by eliminating the closed channel in the elastic two-particle scattering region. The current matrix element formula is derived by demanding the effective quantum mechanics defined by the HAL QCD potential to respond to the external field in the same way as the original two-channel coupling model.

  18. Salpingoscopy: systematic use in diagnostic laparoscopy.

    Science.gov (United States)

    Marconi, G; Auge, L; Sojo, E; Young, E; Quintana, R

    1992-04-01

    To evaluate the importance of salpingoscopy together with laparoscopy in the diagnosis of tubal pathology. Salpingoscopy was performed as a complementary method in patients who were subjected to diagnostic laparoscopy. The relationship between the salpingoscopy and (1) the patient's previous history of tubal disease and (2) laparoscopic diagnoses was evaluated. Private patients referred to the Instituto de Fertilidad, Buenos Aires. Forty-two patients undergoing a diagnostic laparoscopy during the evaluation of their fertility or as a follow-up of previous therapy. Salpingoscopy was performed, using a colpomicrohysteroscope. We evaluated alterations in major and minor folds and their vascularization, the presence of microadhesions, and cellular nuclei dyed with methylene blue in the tubal lumen. Fifty percent of the patients who had no previous history of tubal disease presented with endosalpingeal alterations, and in 37% of the normal laparoscopies the salpinx had unilateral or bilateral salpingoscopic abnormalities. Salpingoscopy is a useful method to evaluate oviducts, before assuming their normality, and consideration of these women for assisted reproductive technology.

  19. Comparison of hysterosalpingograms with laparoscopy in the ...

    African Journals Online (AJOL)

    Introduction: The objectives were to assess the diagnostic value of hysterosalpingography (HSG) with laparoscopy as gold standard in the evaluation of tubal patency and pelvic adhesions in women suffering from infertility. Methods: We conducted a comparative cross sectional study on 208 medical files of infertile women ...

  20. The GOAL-to-HAL/S translator specification. [for space shuttle

    Science.gov (United States)

    Stanten, S. F.; Flanders, J. H.

    1973-01-01

    The specification sets forth a technical framework within which to deal with the transfer of specific GOAL features to HAL/S. Key technical features of the translator are described which communicate with the data bank, handle repeat statements, and deal with software interrupts. GOAL programs, databank information, and GOAL system subroutines are integrated into one GOAL in HAL/S. This output is fully compatible HAL/S source ready for insertion into the HAL/S compiler. The Translator uses a PASS1 to establish all the global data needed for the HAL/S output program. Individual GOAL statements are translated in PASS2. The specification document makes extensive use of flowcharts to specify exactly how each variation of each GOAL statement is to be translated. The specification also deals with definitions and assumptions, executive support structure and implementation. An appendix, entitled GOAL-to-HAL Mapping, provides examples of translated GOAL statements.

  1. Development of single leg version of HAL for hemiplegia.

    Science.gov (United States)

    Kawamoto, Hiroaki; Hayashi, Tomohiro; Sakurai, Takeru; Eguchi, Kiyoshi; Sankai, Yoshiyuki

    2009-01-01

    Our goal is to try to enhance the QoL of persons with hemiplegia by the mean of an active motion support system based on the HAL's technology. The HAL (Hybrid Assistive Limb) in its standard version is an exoskeleton-based robot suit to support and enhance the human motor functions. The purpose of the research presented in this paper is the development of a new version of the HAL to be used as an assistive device providing walking motion support to persons with hemiplegia. It includes the realization of the single leg version of the HAL and the redesign of the original HAL's Autonomous Controller to execute human-like walking motions in an autonomous way. Clinical trials were conducted in order to assess the effectiveness of the developed system. The first stage of the trials described in this paper involved the participation of one hemiplegic patient who has difficulties to flex his right knee. As a result, the knee flexion support for walking provided by the HAL appeared to improve the subject's walking (longer stride and faster steps). The first evaluation of the system with one subject showed promising results for the future developments.

  2. Hybrid Assistive Limb (HAL) Rehabilitation in Patients with Acute Hemorrhagic Stroke.

    Science.gov (United States)

    Ogata, Toshiyasu; Abe, Hiroshi; Samura, Kazuhiro; Hamada, Omi; Nonaka, Masani; Iwaasa, Mitsutoshi; Higashi, Toshio; Fukuda, Hiroyuki; Shiota, Etsuji; Tsuboi, Yoshio; Inoue, Tooru

    2015-01-01

    The efficacy of hybrid assistive limb (HAL) rehabilitation in the acute phase of stroke remains unclear. The purpose of this study was to evaluate the outcomes of patients with acute intracranial hemorrhage (ICH) who were treated with or without HAL rehabilitation. Among 270 patients with acute ICH from 2009 to 2014, 91 patients with supratentorial ICH were included in this retrospective study. Of these, 14 patients (HAL group) received HAL rehabilitation at approximately 1 week after ICH occurrence, while the remaining 77 patients received usual rehabilitation without HAL (N-HAL group). We obtained various patient data from the hospitals where the patients were moved to for further rehabilitation. Statistical comparisons were performed for the characteristics of the ICH patients, and outcomes between the HAL and N-HAL groups. There were no differences in outcomes between the HAL and N-HAL groups. However, patients with right ICH in the HAL group exhibited a significant association with a functional independence measure (FIM) score of ≥ 110 compared with patients in the N-HAL group (HAL group: 81.8%, N-HAL group: 43.9%, P = 0.04). In patients with right ICH, HAL rehabilitation was associated with improved outcomes as evaluated by the FIM score. Thus, HAL rehabilitation may improve outcomes of acute ICH in appropriately selected patients.

  3. Recognition of a novel type X═N-Hal···Hal (X = C, S, P; Hal = F, Cl, Br, I) halogen bonding.

    Science.gov (United States)

    Gushchin, Pavel V; Kuznetsov, Maxim L; Haukka, Matti; Kukushkin, Vadim Yu

    2013-04-04

    The chlorination of the eight-membered platinum(II) chelates [PtCl2{NH═C(NR2)N(Ph)C(═NH)N(Ph)C(NR2)═NH}] (R = Me (1); R2 = (CH2)5 (2)) with uncomplexed imino group with Cl2 gives complexes bearing the ═N-Cl moiety [PtCl4{NH═C(NR2)N(Ph)C(═NCl)N(Ph)C(NR2)═NH}] (R = Me (3); R2 = (CH2)5 (4)). X-ray study for 3 revealed a novel type intermolecular halogen bonding ═N-Cl···Cl(-), formed between the Cl atom of the chlorinated imine and the chloride bound to the platinum(IV) center. The processing relevant structural data retrieved from the Cambridge Structural Database (CSDB) shows that this type of halogen bonding is realized in 18 more molecular species having X═N-Hal moieties (X = C, P, S, V, W; Hal = Cl, Br, I), but this weak ═N-Hal···Hal(-) bonding was totally neglected in the previous works. The presence of the halogen bonding in 3 was confirmed by theoretical calculations at the density functional theory (DFT, M06-2X) level, and its nature was analyzed.

  4. The Roles of Laparoscopy in Treating Ovarian Cancer

    Directory of Open Access Journals (Sweden)

    Chyi-Long Lee

    2009-03-01

    Full Text Available Great advances in technology offer meticulous options of minimally invasive surgery to empower the gynecologists to manage patients of early ovarian cancer. Laparoscopy affords improved visualization of the pelvic peritoneum, diaphragm and the deep pelvic structures, and offers many advantages in the avoidance of long abdominal incision, including shorter hospital stay and a more rapid recovery time. Most studies showed that laparoscopy did not compromise the survival and recurrence prognosis in comparison with open abdominal approach of staging surgery. Contrarily, laparoscopy precludes the advantage of open surgery, such as manual examination of the full extent of the bowel and palpation of lymph nodes. Besides, laparoscopy technically hampers the removal of large ovarian mass, and laparoscopic cancer surgery has a potential risk of trocar site metastasis. As the trend shows that laparoscopy has been playing an important role in treating early ovarian cancer, we could expect laparoscopy to become an attractive surgical option in the future for ovarian cancers.

  5. Chemical composition of HAL, an isotopically-unusual Allende inclusion

    Science.gov (United States)

    Davis, A. M.; Tanaka, T.; Grossman, L.; Lee, T.; Wasserburg, G. J.

    1982-01-01

    Samples of hibonite, black rim, and portions of friable rim from an unusual Allende inclusion, named HAL, were analyzed by INAA and RNAA for 37 major, minor, and trace elements. An unusually low amount of Ce was found in HAL, although it otherwise was highly enriched in REE compared to C1 chondrites. HAL is also depleted in Sr, Ba, U, V, Ru, Os, and Ir relative to other refractory elements. It is concluded that the distribution of REE between hibonite and rims was established when hibonite and other refractory minerals were removed at slightly different temperatures from a hot, oxidizing gas in which they previously coexisted as separate grains. Possible locations for the chemical and mass dependent isotopic fractionation are considered to be in ejecta from the low temperature helium-burning zone of a supernova and in the locally oxidizing environment generated by evaporation of interstellar grains of near-chondritic chemical composition.

  6. Crystal and molecular structure of new fullerides (Ph4P)2C60Hal (Hal = Br, I) and (Ph4As)2C60Cl

    International Nuclear Information System (INIS)

    Gritsenko, V.V.; D'yachenko, O.A.; Shilov, G.V.; Spitsyn, N.G.; Yagubskij, E h.B.

    1997-01-01

    New stable on air fullerides (Ph 4 P) 2 C 60 Hal (Hal = Br, I) and (Ph 4 As) 2 C 60 Cl were synthesized and their crystal structure were determined. On the basis of their relative crystallochemical analysis fullerides obtained were shown to be isostructural. They are described by general formula (Ph 4 X) 2 C 60 Hal (X = H, As; Hal = Cl, Br, I) and crystallized in triclinic system. Anions C 60 - and Hal - occupy the centre-symmetrical positions, cations (PH 4 P) + and (Ph 4 As) + occupy the general positions. The main parameters of molecular structure are presented

  7. A structured four-step curriculum in basic laparoscopy

    DEFF Research Database (Denmark)

    Strandbygaard, Jeanett; Bjerrum, Flemming; Maagaard, Mathilde

    2014-01-01

    The objective of this study was to develop a 4-step curriculum in basic laparoscopy consisting of validated modules integrating a cognitive component, a practical component and a procedural component.......The objective of this study was to develop a 4-step curriculum in basic laparoscopy consisting of validated modules integrating a cognitive component, a practical component and a procedural component....

  8. Selective use of diagnostic laparoscopy in patients with suspected appendicitis

    NARCIS (Netherlands)

    van den Broek, W. T.; Bijnen, A. B.; van Eerten, P. V.; de Ruiter, P.; Gouma, D. J.

    2000-01-01

    BACKGROUND: Diagnostic laparoscopy has been introduced as a new diagnostic tool for patients with acute appendicitis. We performed diagnostic laparoscopy when the clinical diagnosis of appendicitis was in doubt. The aims of this study were to evaluate this strategy and to analyze the efficacy of

  9. HAL/S-FC compiler system functional specification

    Science.gov (United States)

    1974-01-01

    Compiler organization is discussed, including overall compiler structure, internal data transfer, compiler development, and code optimization. The user, system, and SDL interfaces are described, along with compiler system requirements. Run-time software support package and restrictions and dependencies are also considered of the HAL/S-FC system.

  10. Chemical composition of HAL, an isotopically-unusual Allende inclusion

    International Nuclear Information System (INIS)

    Davis, A.M.; Tanaka, T.; Grossman, L.; Lee, T.; Wasserburg, G.J.

    1982-01-01

    Thirty-seven major, minor and trace elements were determined by INAA and RNAA in samples of hibonite, black rim and portions of friable rim from an unusual Allende inclusion, HAL. The peculiar isotopic, mineralogical and textural properties of HAL are accompanied by very unusual trace element abundances. The most striking feature of the chemistry is the virtual absence of Ce from an inclusion otherwise highly enriched in REE compared to C1 chondrites. HAL is also depleted in Sr, Ba, U, V, Ru, Os and Ir, relative to other refractory elements. Of the lithophile elements determined which are normally considered to be refractory in a gas of solar composition, Sr, Ba, Ce, U and V are the most volatile in oxidizing gases. The distribution of REE between hibonite and rims seems to have been established when hibonite and other refractory minerals were removed at slightly different temperatures from a hot, oxidizing gas in which they previously coexisted as separate grains. On the basis of HAL's chemical and isotopic composition, possible locations for the chemical and mass dependent isotopic fractionation are discussed. (author)

  11. A three-arm (laparoscopic, hand-assisted, and robotic) matched-case analysis of intraoperative and postoperative outcomes in minimally invasive colorectal surgery.

    Science.gov (United States)

    Patel, Chirag B; Ragupathi, Madhu; Ramos-Valadez, Diego I; Haas, Eric M

    2011-02-01

    Robotic-assisted laparoscopic surgery is an emerging modality in the field of minimally invasive colorectal surgery. However, there is a dearth of data comparing outcomes with other minimally invasive techniques. We present a 3-arm (conventional, hand-assisted, and robotic) matched-case analysis of intraoperative and short-term outcomes in patients undergoing minimally invasive colorectal procedures. Between August 2008 and October 2009, 70 robotic cases of the rectum and rectosigmoid were performed. Thirty of these were organized into triplets with conventional and hand-assisted cases based on the following 6 matching criteria: 1) surgeon; 2) sex; 3) body mass index; 4) operative procedure; 5) pathology; and 6) history of neoadjuvant therapy in malignant cases. Demographics, intraoperative parameters, and postoperative outcomes were assessed. Pathological outcomes were analyzed in malignant cases. Data were stratified by postoperative diagnosis and operative procedure. There was no significant difference in intraoperative complications, estimated blood loss (126.1 ± 98.5 mL overall), or postoperative morbidity and mortality among the groups. Robotic technique required longer operative time compared with conventional laparoscopic (P hand-assisted (P robotic approach results in short-term outcomes comparable to conventional and hand-assisted laparoscopic approaches for benign and malignant diseases of the rectum and rectosigmoid. With 3-dimensional visualization, additional freedom of motion, and improved ergonomics, this enabling technology may play an important role when performing colorectal procedures involving the pelvic anatomy.

  12. Retreatment Rates Among Endometriosis Patients Undergoing Hysterectomy or Laparoscopy.

    Science.gov (United States)

    Soliman, Ahmed M; Du, Ella Xiaoyan; Yang, Hongbo; Wu, Eric Q; Haley, Jane C

    2017-06-01

    Hysterectomy and laparoscopy are the two most common surgical options used to treat women with endometriosis, yet the disease may still recur. This study aimed to determine the long-term retreatment rates among endometriosis patients in the United States who received either hysterectomy or laparoscopy. Patients aged 18-49 years with endometriosis who underwent hysterectomy or laparoscopy were identified in the Truven Health MarketScan claims database (2004-2013). The retreatment rate up to 8 years after the initial surgery was estimated using Kaplan-Meier survival analysis. The relative risk of retreatment among patients with hysterectomy versus laparoscopy was assessed using a Cox proportional hazard model. A total of 24,915 patients with endometriosis who underwent hysterectomy and 37,308 patients with endometriosis who underwent laparoscopy were identified. The estimated retreatment rates were 3.3%, 4.7%, and 5.4% in the 2nd, 5th, and 8th year following hysterectomy, respectively, while the rates following laparoscopy were 15.8%, 27.5%, and 35.2%, respectively. The hazard ratio of retreatment was 0.157 (95% confidence interval [CI]: 0.146-0.169) comparing hysterectomy to laparoscopy. In the sensitivity analysis, which expanded the definition of retreatment by including medical treatments, the retreatment rate increased by a factor of 11-14 for the hysterectomy cohort and by a factor of 2-4 for the laparoscopy cohort, and the hazard ratio of retreatment rate for hysterectomy versus laparoscopy was 0.490 (95% CI: 0.477-0.502). Our study results indicated that the disease retreatment rate after laparoscopy is high among patients with endometriosis; even hysterectomy does not guarantee freedom from retreatment.

  13. Three-dimensional laparoscopy vs 2-dimensional laparoscopy with high-definition technology for abdominal surgery: a systematic review.

    Science.gov (United States)

    Fergo, Charlotte; Burcharth, Jakob; Pommergaard, Hans-Christian; Kildebro, Niels; Rosenberg, Jacob

    2017-01-01

    This systematic review investigates newer generation 3-dimensional (3D) laparoscopy vs 2-dimensional (2D) laparoscopy in terms of error rating, performance time, and subjective assessment as early comparisons have shown contradictory results due to technological shortcomings. This systematic review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Randomized controlled trials (RCTs) comparing newer generation 3D-laparoscopy with 2D-laparoscopy were included through searches in Pubmed, EMBASE, and Cochrane Central Register of Controlled Trials database. Of 643 articles, 13 RCTs were included, of which 2 were clinical trials. Nine of 13 trials (69%) and 10 of 13 trials (77%) found a significant reduction in performance time and error, respectively, with the use of 3D-laparoscopy. Overall, 3D-laparoscopy was found to be superior or equal to 2D-laparoscopy. All trials featuring subjective evaluation found a superiority of 3D-laparoscopy. More clinical RCTs are still awaited for the convincing results to be reproduced. Copyright © 2016 Elsevier Inc. All rights reserved.

  14. Stabilization by hals and phenols in γ-irradiated polyproplyene

    International Nuclear Information System (INIS)

    Carlsson, D.J.; Falicki, S.; Cooke, J.M.; Gosciniak, D.J.

    1994-01-01

    The γ-radiation initiated oxidation of polypropylene films and test strips has been studied both immediately after irradiation and also during post-irradiation accelerated aging at 60 degrees C. Stabilizers included blocked and unblocked phenols as well as secondary and tertiary hindered amines (HALS) including an oligomeric HALS. Oxidation product formation, yellowing and embrittlement (as measured in an instrumented bend test) have been compared with product formation. A partial correlation between suppression of oxidation during the irradiation step with long term, post-irradiation oven aging at 60 degrees C was found, but complicated by extensive destruction during irradiation of the active phenolic functionality in some additives, essential for peroxyl radical scavenging. Very long lifetimes with barely detectable yellowing were found for combinations of the amines with completely unhindered or only partially hindered phenols

  15. Hal: an automated pipeline for phylogenetic analyses of genomic data.

    Science.gov (United States)

    Robbertse, Barbara; Yoder, Ryan J; Boyd, Alex; Reeves, John; Spatafora, Joseph W

    2011-02-07

    The rapid increase in genomic and genome-scale data is resulting in unprecedented levels of discrete sequence data available for phylogenetic analyses. Major analytical impasses exist, however, prior to analyzing these data with existing phylogenetic software. Obstacles include the management of large data sets without standardized naming conventions, identification and filtering of orthologous clusters of proteins or genes, and the assembly of alignments of orthologous sequence data into individual and concatenated super alignments. Here we report the production of an automated pipeline, Hal that produces multiple alignments and trees from genomic data. These alignments can be produced by a choice of four alignment programs and analyzed by a variety of phylogenetic programs. In short, the Hal pipeline connects the programs BLASTP, MCL, user specified alignment programs, GBlocks, ProtTest and user specified phylogenetic programs to produce species trees. The script is available at sourceforge (http://sourceforge.net/projects/bio-hal/). The results from an example analysis of Kingdom Fungi are briefly discussed.

  16. Role of Diagnostic Laparoscopy in Chronic Abdominal Conditions ...

    African Journals Online (AJOL)

    the necessary hematological, biochemical, radiological, and ascitic fluid analysis, gastrointestinal .... In this aspect, diagnostic laparoscopy clearly scores above the imaging studies. ... abdominal pain and depression. Epidemiologie findings in ...

  17. A randomised trial comparing laparoscopy with laparotomy in the ...

    African Journals Online (AJOL)

    time to normal activity, total hospital costs,[8] shorter hospital stay and quicker recovery in ... with laparoscopy in the surgical management of women with REP in any setting. ..... Regression analysis accounting for the learning curve shows that.

  18. Gynaecological laparoscopy courses in the United Arab Emirates

    African Journals Online (AJOL)

    EB

    gynaecological procedures having advantages over open surgery. Objective: To ... Models used may be useful for training gynaecological laparoscopy in developing countries. The long ... coordination and force needed to handle the tissues.2.

  19. Experience and Security of the Hand-Assisted Laparoscopic Nephrectomy of a Living Donor in a Public Health Center.

    Science.gov (United States)

    Garcia-Covarrubias, L; Prieto-Olivares, P; Bahena-Portillo, A; Cicero-Lebrija, A; Hinojosa-Heredia, H; Fernández-Lopez, L J; Almeida-Nieto, C; Visag-Castillo, V J; Carrión-Barrera, J; Castro-Ñuco, I; Pedraza-Rojas, E; Rosas-Herrera, A; García-Covarrubias, A; Fernández-Angel, D; Diliz-Perez, H S

    2018-03-01

    Hand-assisted laparoscopic nephrectomy (HALDN) is currently the procedure of choice for obtaining living donor kidneys for transplantation. In our institution, it has been the standard procedure for 5 years. Previous studies have shown the same function of the graft as that obtained by open surgery, with a lower rate of bleeding and no differences in complications. We sought to demonstrate the experience and safety of HALDN compared with open donor nephrectomy in healthy donors for kidney transplantation. A retrospective analytical observational study was conducted, reviewing the records of the living donors for kidney transplant undergoing open donor nephrectomy or HALDN in our center from March 1, 2009, to March 1, 2016. Renal function was assessed by the estimated glomerular filtration rate by the Modification of Diet in Renal Disease method before and after donation, as well as bleeding (mL), and complications (according to Clavien), performing a comparative analysis between the two techniques using parametric or nonparametric tests. A total of 179 living donor nephrectomies were performed during the study period-31 open donor nephrectomy (17.3%) and 148 HALDN (82.7%)-without relevant baseline differences, except for creatinine. HALDN has a shorter surgical time (156,473 ± 87.75 minutes vs 165,484 ± 69.95 minutes) and less bleeding (244.59 ± 416.08 mL vs 324.19 ± 197.986 mL) and a shorter duration of hospital stay (3.74 ± 1.336 days vs 4.75 ± 1.226 days). There were no significant differences in surgical complications at 30 days, or graft loss reported; there were 3 conversions (1.7%) from the HALDN to the open technique. There were no differences in renal function in the donors or recipients at the 5th day or the month after surgery. Laparoscopic nephrectomy has replaced open surgery as the gold standard for living kidney donors. HALDN is a safe and feasible procedure when compared with open donor nephrectomy, achieving a shorter surgical time with

  20. Origin of the X-Hal (Hal ) Cl, Br) Bond-Length Change in the Halogen-Bonded Complexes

    Czech Academy of Sciences Publication Activity Database

    Wang, Weizhou; Hobza, Pavel

    2008-01-01

    Roč. 112, č. 17 (2008), s. 4114-4119 ISSN 1089-5639 R&D Projects: GA MŠk LC512; GA AV ČR IAA400550510 Institutional research plan: CEZ:AV0Z40550506 Keywords : hal ogen bonded complexes * MP2(full)/6-311++G(d,p) method * natural bond orbital analysis Subject RIV: CF - Physical ; Theoretical Chemistry Impact factor: 2.871, year: 2008

  1. Carbon footprint of robotically-assisted laparoscopy, laparoscopy and laparotomy: a comparison.

    Science.gov (United States)

    Woods, Demetrius L; McAndrew, Thomas; Nevadunsky, Nicole; Hou, June Y; Goldberg, Gary; Yi-Shin Kuo, Dennis; Isani, Sara

    2015-12-01

    To date there have been no comprehensive, comparative assessments of the environmental impact of surgical modalities. Our study seeks to quantify and compare the total greenhouse gas emissions, or 'carbon footprint', attributable to three surgical modalities. A review of 150 staging procedures, employing laparotomy (LAP), conventional laparoscopy (LSC) or robotically-assisted laparoscopy (RA-LSC), was performed. The solid waste generated (kg) and energy consumed (kWh) during each case were quantified and converted into their equivalent mass of carbon dioxide (kg CO(2) e) release into the environment. The carbon footprint is the sum of the waste production and energy consumption during each surgery (kg CO(2) e). The total carbon footprint of a RA-LSC procedure is 40.3 kg CO(2) e/patient (p < 0.01). This represents a 38% increase over that of LSC (29.2 kg CO(2) e/patient; p < 0.01) and a 77% increase over LAP (22.7 kg CO(2) e/patient; p < 0.01). Our results provide clinicians, administrators and policy-makers with knowledge of the environmental impact of their decisions to facilitate adoption of sustainable practices. Copyright © 2015 John Wiley & Sons, Ltd.

  2. Does laparoscopy still has a role in modern fertility practice?

    Directory of Open Access Journals (Sweden)

    Ahmad Mahran

    2017-12-01

    Full Text Available Background: More than 3 decades after the introduction of in vitro fertilization (IVF and despite the improved success rates of assisted reproductive technologies, the argument for performing laparoscopy as a part of the infertility workup still stands. Objective: To evaluate the role of laparoscopy±hysteroscopy in diagnosis and management of infertility in our setting in view of modern fertility practice. Materials and Methods: This case control study was carried out on 600 infertile women subjected to laparoscopy or combined laparoscopy and hysteroscopy at endoscopy unit in Minia University Hospital, Egypt during the period from January 2012 to December 2014. Results: The causes of infertility as identified by laparoscopy±hysteroscopy were polycystic ovary syndrome (25.1%, tubal factor (30%, uterine cause (4%, and endometriosis (2.7%. No cause was identified in 38.2% of cases. Based on operative findings, women were treated with different options. Expectant management was used in 92 cases (15.3%. Ovulation induction with anti-estrogens or gonadotropins was used in 372 cases (62%. Sixty cases (10% had intrauterine insemination and sixty four cases (10.7% underwent in vitro fertilization (IVF / intracytoplasmic sperm injection (ICSI treatment. Within 1 yr after laparoscopy, 180 cases achieved pregnancy (30%. The most favorable outcome was recorded in women with unexplained infertility (36.7% of cases got pregnant followed by women with polycystic ovary syndrome (27.8%. Participants with uterine and tubal infertility factor achieved pregnancy in 25% and 22.8% of cases, respectively. The worst outcome was recorded in women with endometriosis. Conclusion: Laparoscopy still has an important role in the diagnosis and treatment of infertility.

  3. Laser laparoscopy in the treatment of polycystic ovarian disease

    Science.gov (United States)

    Mutrynowski, Andrzej; Zabielska, Renata

    1996-03-01

    A polycystic ovaries disease occurs in the case of women with anovulatory cycles as the result of neurohormonal disorders. Patients with this disease suffer from infertility and many symptoms, such as: irregular menstrual bleeding, hirsutism, obesity. The paper presents a method of the carbon dioxide laser laparoscopy in the polycystic ovary disease treatment. The study included 96 women operated on (carbon dioxide laser laparoscopy) in the II Clinic Of Obstetric and Gynecology in Warsaw. Each woman measured her body temperature in order to evaluate her menstrual cycle and had vaginal USG examination or a cytohormonal one before laparoscopy and within 6 months after the surgery. Performing the laparoscopy the operator punctured each ovary in at least 15 points using the carbon dioxide laser. The patients were followed-up for 6 months. The Chi test was used to make the statistic analysis. Comparing the percent of ovulatory cycles and regular ones before and after surgery we noticed that the differences were statistically relevant. Eighty-five patients (88%) had regular cycles and in 88 cases (92%) there was a diphasic curve of the body temperature after the laparoscopy. Fourteen percent of infertile women with polycystic ovary disease conceived.

  4. Effect of HALS and antioxidant on the radiation-induced discoloration of polypropylene

    International Nuclear Information System (INIS)

    Wang Huiliang; Kong Xiangbo; Chen Wenxiu

    1999-01-01

    The effects of hindered amine light stabilizers (HALS), antioxidants and the combination of HALS and antioxidants on the radiation-induced discoloration of polypropylene (PP) are studied. The yellow index (YI) of PP added pentamethyl HALS is found to be lower than that of PP added corresponding tetramethyl HALS at the same radiation dose. The YI of PP added antioxidant Irganox 1076 is lower than that of PP added Irgafos 168 or Irganox PS-802. When Irganox 1076 and PDS are used together, the YI of PP is lower than that of Irganox 1076 or PDS used separately. YI of PP decreases with storage time after irradiation. The results are discussed

  5. Influence of the halothane gene (HAL) on pork quality in two commercial crossbreeds.

    Science.gov (United States)

    Silveira, A C P; Freitas, P F A; César, A S M; Cesar, A S M; Antunes, R C; Guimarães, E C; Batista, D F A; Torido, L C

    2011-01-01

    We evaluated the effect of the halothane (HAL) gene on the quality of pork in domestic pigs. Half-carcasses from two different commercial pig (Sus domestica) crossbreeds were analyzed, 46 of which were homozygous dominant (HAL(NN)) and 69 of which were heterozygous (HAL(Nn)) for the halothane gene. The measures included backfat thickness, lean meat percentage, carcass weight, pH 24 h after slaughtering, color, and drip loss; DNA was extracted from the haunch muscle. Swine with the HAL(Nn) genotype had less backfat thickness and higher lean meat percentages than swine with the HAL(NN) genotype. Yet, swine with the HAL(Nn) genotype had lower quality meat than those with the HAL(NN) swine. The pH at 24 h was lower in HAL(Nn) swine. The meat color was paler in HAL(Nn) animals, the drip loss was greater in those animals bearing the n allele, and the amount of intramuscular fat was not related to the halothane genotype. We conclude that bearers of the recessive allele of the halothane gene produce more meat, but with quality parameters that are inferior to those sought by consumers and industry.

  6. Hand-Assisted Robotic Surgery for Staging of Ovarian Cancer and Uterine Cancers With High Risk of Peritoneal Spread: A Retrospective Cohort Study.

    Science.gov (United States)

    Fornalik, Hubert; Brooks, Hannah; Moore, Elizabeth S; Flanders, Nicole L; Callahan, Michael J; Sutton, Gregory P

    2015-10-01

    This study aimed to determine surgical outcomes related to hand-assisted robotic surgery (HARS) for staging of ovarian cancer and uterine cancers with high risk of peritoneal spread and compare them to laparotomy and standard robotic-assisted surgery. A retrospective cohort study of women undergoing staging for uterine and ovarian cancer between January 2011 and July 2013 at a major metropolitan teaching hospital was reviewed. Patients undergoing HARS were matched with patients undergoing staging laparotomy [exploratory laparotomy (XLAP)] for the same indications and with patients undergoing traditional robotic surgery (RS) for staging of endometrioid endometrial cancer. In HARS, a longer incision is used to allow palpation of the peritoneal surfaces, to exteriorize the small bowel, to examine the mesentery, and to perform omentectomy. One hundred five patients were analyzed (15 HARS, 45 RS, 45 XLAP). Compared with XLAP, HARS was associated with decreased blood loss (200 vs 400 mL, P = 0.011) and shorter hospital stay (1 vs 4 days, P < 0.001). Patients who had undergone HARS had fewer major complications, but those results did not reach statistical significance (0% vs 27%, P = 0.063). Hand-assisted robotic surgery was associated with higher blood loss and length of stay as compared to robotic staging of endometrioid endometrial cancer (RS). Minor wound complications were also more common (27% vs 2%, P = 0.012). Hand-assisted robotic surgery allows for thorough visual and tactile assessment of peritoneal surfaces. It represents a safe alternative to laparotomy for staging of ovarian and uterine cancers with high risk of peritoneal spread. Long-term follow-up study is needed to determine oncologic adequacy of HARS.

  7. Development and validation of a theoretical test in basic laparoscopy

    DEFF Research Database (Denmark)

    Strandbygaard, Jeanett; Maagaard, Mathilde; Larsen, Christian Rifbjerg

    2013-01-01

    for first-year residents in obstetrics and gynecology. This study therefore aimed to develop and validate a framework for a theoretical knowledge test, a multiple-choice test, in basic theory related to laparoscopy. METHODS: The content of the multiple-choice test was determined by conducting informal...... conversational interviews with experts in laparoscopy. The subsequent relevance of the test questions was evaluated using the Delphi method involving regional chief physicians. Construct validity was tested by comparing test results from three groups with expected different clinical competence and knowledge.......001). Internal consistency (Cronbach's alpha) was 0.82. There was no evidence of differential item functioning between the three groups tested. CONCLUSIONS: A newly developed knowledge test in basic laparoscopy proved to have content and construct validity. The formula for the development and validation...

  8. The Unexpected Ovarian Pregnancy at Laparoscopy: A Review of Management

    Directory of Open Access Journals (Sweden)

    Meher Tabassum

    2017-01-01

    Full Text Available Ovarian ectopic pregnancies are a rare occurrence; however the incidence is on the rise. Preoperative diagnosis remains difficult due to nonspecific clinical symptoms and USS findings. Most patients undergo diagnostic laparoscopy with subsequent surgical management. We present the case of a 32-year-old female who presented with vaginal bleeding and an unsited pregnancy, with a BhCG of 24693. Formal USS described unruptured right tubal ectopic with ovarian pregnancy being diagnosed at laparoscopy. A wedge resection was conducted to preserve ovarian function. Postoperative recovery was uneventful and BhCG levels returned to zero (nonpregnant in an outpatient setting. Although laparoscopy remains the gold standard of diagnosis and treatment, in this case report we discuss benefits of early diagnosis for fertility conserving management, including nonsurgical options.

  9. The Unexpected Ovarian Pregnancy at Laparoscopy: A Review of Management.

    Science.gov (United States)

    Tabassum, Meher; Atmuri, Kiran

    2017-01-01

    Ovarian ectopic pregnancies are a rare occurrence; however the incidence is on the rise. Preoperative diagnosis remains difficult due to nonspecific clinical symptoms and USS findings. Most patients undergo diagnostic laparoscopy with subsequent surgical management. We present the case of a 32-year-old female who presented with vaginal bleeding and an unsited pregnancy, with a BhCG of 24693. Formal USS described unruptured right tubal ectopic with ovarian pregnancy being diagnosed at laparoscopy. A wedge resection was conducted to preserve ovarian function. Postoperative recovery was uneventful and BhCG levels returned to zero (nonpregnant) in an outpatient setting. Although laparoscopy remains the gold standard of diagnosis and treatment, in this case report we discuss benefits of early diagnosis for fertility conserving management, including nonsurgical options.

  10. Role of laparoscopy in evaluation of chronic pelvic pain

    Directory of Open Access Journals (Sweden)

    Hebbar Shripad

    2005-01-01

    Full Text Available Introduction: Chronic pelvic pain (CPP is a common medical problem affecting women. Too often the physical signs are not specific. This study aims at determining the accuracy of diagnostic laparoscopy over clinical pelvic examination. Settings and Design: A retrospective study of patients who underwent diagnostic laparoscopy for CPP. Materials and Methods: The medical records of 86 women who underwent laparoscopic evaluation for CPP of at least 6-month duration were reviewed for presentation of symptoms, pelvic examination findings at the admission, operative findings and follow up when available. Statistical analysis used: McNemar Chi-square test for frequencies in a 2 x 2 table. Results: The most common presentation was acyclic lower abdominal pain (79.1%, followed by congestive dysmenorrhoea (26.7%. 61.6% of women did not reveal any significant signs on pelvic examination. Pelvic tenderness was elicited in 27.9%. Diagnostic laparoscopy revealed significant pelvic pathology in 58% of those who essentially had normal pervaginal findings. The most common pelvic pathology by laparoscopy was pelvic adhesions (20.9%, followed by pelvic congestion (18.6%. Laparoscopic adhesiolyis achieved pain relief only in one-third of the women. Conclusion: The study revealed very low incidence of endometriosis (4.7%. Overall clinical examination could detect abnormality in only 38% of women, where as laparoscopy could detect significant pathology in 66% of women with CPP. This shows superiority of diagnostic laparoscopy over clinical examination in detection of aetiology in women with CPP (P < 0.001. Adhesiolysis helps only small proportion of women in achieving pain control.

  11. Laparoscopy and hysteroscopy in a Tertiary Hospital: A 4 year review

    African Journals Online (AJOL)

    or hysteroscopy in AKTH within the study period were retrieved from the operation record book; their case files were retrieved, studied and recorded in a ... Key words: Anaesthesia; hysteroscopy; laparoscopy. Introduction. Laparoscopy and ... local anaesthesia with sedation may also be used for office laparoscopy.[3].

  12. Associations between variants of the HAL gene and milk production traits in Chinese Holstein cows.

    Science.gov (United States)

    Wang, Haifei; Jiang, Li; Wang, Wenwen; Zhang, Shengli; Yin, Zongjun; Zhang, Qin; Liu, Jian-Feng

    2014-11-25

    The histidine ammonia-lyse gene (HAL) encodes the histidine ammonia-lyase, which catalyzes the first reaction of histidine catabolism. In our previous genome-wide association study in Chinese Holstein cows to identify genetic variants affecting milk production traits, a SNP (rs41647754) located 357 bp upstream of HAL, was found to be significantly associated with milk yield and milk protein yield. In addition, the HAL gene resides within the reported QTLs for milk production traits. The aims of this study were to identify genetic variants in HAL and to test the association between these variants and milk production traits. Fifteen SNPs were identified within the regions under study of the HAL gene, including three coding mutations, seven intronic mutations, one promoter region mutation, and four 3'UTR mutations. Nine of these identified SNPs were chosen for subsequent genotyping and association analyses. Our results showed that five SNP markers (ss974768522, ss974768525, ss974768531, ss974768533 and ss974768534) were significantly associated with one or more milk production traits. Haplotype analysis showed that two haplotype blocks were significantly associated with milk yield and milk protein yield, providing additional support for the association between HAL variants and milk production traits in dairy cows (P HAL gene and milk production traits in Chinese Holstein cows, indicating the potential role of HAL variants in these traits. These identified SNPs may serve as genetic markers used in genomic selection schemes to accelerate the genetic gains of milk production traits in dairy cattle.

  13. On the performance of the HAL/S-FC compiler. [for space shuttles

    Science.gov (United States)

    Martin, F. H.

    1975-01-01

    The HAL/S compilers which will be used in the space shuttles are described. Acceptance test objectives and procedures are described, the raw results are presented and analyzed, and conclusions and observations are drawn. An appendix is included containing an illustrative set of compiler listings and results for one of the test cases.

  14. Hal2p functions in Bdf1p-involved salt stress response in Saccharomyces cerevisiae.

    Directory of Open Access Journals (Sweden)

    Lei Chen

    Full Text Available The Saccharomyces cerevisiae Bdf1p associates with the basal transcription complexes TFIID and acts as a transcriptional regulator. Lack of Bdf1p is salt sensitive and displays abnormal mitochondrial function. The nucleotidase Hal2p detoxifies the toxic compound 3' -phosphoadenosine-5'-phosphate (pAp, which blocks the biosynthesis of methionine. Hal2p is also a target of high concentration of Na(+. Here, we reported that HAL2 overexpression recovered the salt stress sensitivity of bdf1Δ. Further evidence demonstrated that HAL2 expression was regulated indirectly by Bdf1p. The salt stress response mechanisms mediated by Bdf1p and Hal2p were different. Unlike hal2Δ, high Na(+ or Li(+ stress did not cause pAp accumulation in bdf1Δ and methionine supplementation did not recover its salt sensitivity. HAL2 overexpression in bdf1Δ reduced ROS level and improved mitochondrial function, but not respiration. Further analyses suggested that autophagy was apparently defective in bdf1Δ, and autophagy stimulated by Hal2p may play an important role in recovering mitochondrial functions and Na(+ sensitivity of bdf1Δ. Our findings shed new light towards our understanding about the molecular mechanism of Bdf1p-involved salt stress response in budding yeast.

  15. Successful resuscitation after carbon dioxide embolism during laparoscopy

    DEFF Research Database (Denmark)

    Burcharth, Jakob; Burgdorf, Stefan; Lolle, Ida

    2012-01-01

    to another hospital, where she received hyperbaric oxygen treatment. The patient was discharged 14 days after surgery without any sequelae. It is important that the general surgeon suspects VAE during laparoscopy whenever the patient develops sudden and unexplained severe hypotension or cardiac arrest during...

  16. Laparoscopy to evaluate scrotal edema during peritoneal dialysis.

    Science.gov (United States)

    Haggerty, Stephen P; Jorge, Juaquito M

    2013-01-01

    Acute scrotal edema is an infrequent complication in patients who undergo continuous ambulatory peritoneal dialysis (CAPD), occurring in 2% to 4% of patients. Inguinal hernia is usually the cause, but the diagnosis is sometimes confusing. Imaging modalities such as computed tomographic peritoneography are helpful but can be equivocal. We have used diagnostic laparoscopy in conjunction with open unilateral or bilateral hernia repair for diagnosis and treatment of peritoneal dialysis (PD) patients with acute scrotal edema. TECHNIQUE AND CASES: Three patients with acute scrotal edema while receiving CAPD over the span of 7 years had inconclusive results at clinical examination and on diagnostic imaging. All patients underwent diagnostic laparoscopy that revealed indirect inguinal hernia, which was concomitantly repaired using an open-mesh technique. Diagnostic laparoscopy revealed the etiology of the scrotal edema 100% of the time, with no complications, and allowed concomitant repair of the hernia. One patient had postoperative catheter outflow obstruction, which was deemed to be unrelated to the hernia repair. Diagnostic laparoscopy is helpful in confirming the source of acute scrotal edema in CAPD patients and can be performed in conjunction with an open-mesh repair with minimal added time or risk.

  17. Laparoscopy in unexplained abdominal pain: surgeon's perspective

    International Nuclear Information System (INIS)

    Abdullah, M.T.; Waqar, S.H.; Zahid, M.A.

    2016-01-01

    Unexplained abdominal pain is a common but difficult presenting feature faced by the clinicians. Such patients can undergo a number of investigations with failure to reach any diagnosis. The objective of this study was to evaluate the use of laparoscopy in the diagnosis and management of patients with unexplained abdominal pain. Methods: This cross-sectional study was conducted at Pakistan Institute of Medical Sciences Islamabad from January 2009 to December 2013. This study included 91 patients of unexplained abdominal pain not diagnosed by routine clinical examination and investigations. These patients were subjected to diagnostic laparoscopy for evaluation of their conditions and to confirm the diagnosis. These patients presented 43% of patients undergoing investigations for abdominal pain. Patients diagnosed with gynaecological problems were excluded to see surgeon's perspective. The findings and the outcomes of the laparoscopy were recorded and data was analyzed. Results: Unexplained abdominal pain is common in females than in males. The most common laparoscopic findings were abdominal tuberculosis followed by appendicitis. Ninety percent patients achieved pain relief after laparoscopic intervention. Conclusion: Laparoscopy is both beneficial and safe in majority of patients with unexplained abdominal pain. General surgeons should acquire training and experience in laparoscopic surgery to provide maximum benefit to these difficult patients. (author)

  18. The efficacy of virtual reality simulation training in laparoscopy

    DEFF Research Database (Denmark)

    Larsen, Christian Rifbjerg; Oestergaard, Jeanett; Ottesen, Bent S

    2012-01-01

    Background. Virtual reality (VR) simulators for surgical training might possess the properties needed for basic training in laparoscopy. Evidence for training efficacy of VR has been investigated by research of varying quality over the past decade. Objective. To review randomized controlled trial...

  19. Laparoscopy can be used to diagnose peritoneal tuberculosis

    DEFF Research Database (Denmark)

    Ferløv Schwensen, Jakob; Bulut, Mustafa; Nordholm-Carstensen, Andreas

    2014-01-01

    and widespread pale nodules were found throughout the peritoneum. Consequently, the patient was diagnosed with peritoneal tuberculosis. This case demonstrates that atypical manifestations of tuberculosis exist in Denmark and that laparoscopy with biopsy can be performed to obtain the diagnosis when suspecting...... peritoneal tuberculosis....

  20. Rasmussen's model of human behavior in laparoscopy training.

    Science.gov (United States)

    Wentink, M; Stassen, L P S; Alwayn, I; Hosman, R J A W; Stassen, H G

    2003-08-01

    Compared to aviation, where virtual reality (VR) training has been standardized and simulators have proven their benefits, the objectives, needs, and means of VR training in minimally invasive surgery (MIS) still have to be established. The aim of the study presented is to introduce Rasmussen's model of human behavior as a practical framework for the definition of the training objectives, needs, and means in MIS. Rasmussen distinguishes three levels of human behavior: skill-, rule-, and knowledge-based behaviour. The training needs of a laparoscopic novice can be determined by identifying the specific skill-, rule-, and knowledge-based behavior that is required for performing safe laparoscopy. Future objectives of VR laparoscopy trainers should address all three levels of behavior. Although most commercially available simulators for laparoscopy aim at training skill-based behavior, especially the training of knowledge-based behavior during complications in surgery will improve safety levels. However, the cost and complexity of a training means increases when the training objectives proceed from the training of skill-based behavior to the training of complex knowledge-based behavior. In aviation, human behavior models have been used successfully to integrate the training of skill-, rule-, and knowledge-based behavior in a full flight simulator. Understanding surgeon behavior is one of the first steps towards a future full-scale laparoscopy simulator.

  1. Predicting opportunities to increase utilization of laparoscopy for colon cancer.

    Science.gov (United States)

    Keller, Deborah S; Parikh, Niraj; Senagore, Anthony J

    2017-04-01

    Despite proven safety and efficacy, rates of minimally invasive approaches for colon cancer remain low in the USA. Given the known benefits, investigating the root causes of underutilization and methods to increase laparoscopy is warranted. Our goal was to develop a predictive model of factors impacting use of laparoscopic surgery for colon cancer. The Premier Hospital Database was reviewed for elective colorectal resections for colon cancer (2009-2014). Patients were identified by ICD-9-CM diagnosis code and then stratified into open or laparoscopic approaches by ICD-9-CM procedure codes. An adjusted multivariate logistic regression model identified variables predictive of use of laparoscopy for colon cancer. A total of 24,245 patients were included-12,523 (52 %) laparoscopic and 11,722 (48 %) open. General surgeons performed the majority of all procedures (77.99 % open, 71.60 % laparoscopic). Overall use of laparoscopy increased from 48.94 to 52.03 % over the study period (p colon cancer laparoscopically. Colorectal surgeons were 32 % more likely to approach a case laparoscopically than general surgeons (OR 1.315, 95 % CI [1.222, 1.415], p characteristics that can be identified preoperatively to predict who will undergo surgery for colon cancer using laparoscopy. However, additional patients may be eligible for laparoscopy based on patient-level characteristics. These results have implications for regionalization and increasing teaching of MIS. Recognizing and addressing these variables with training and recruiting could increase use of minimally invasive approaches, with the associated clinical and financial benefits.

  2. The hybrid assistive limb (HAL) for Care Support successfully reduced lumbar load in repetitive lifting movements.

    Science.gov (United States)

    Miura, Kousei; Kadone, Hideki; Koda, Masao; Abe, Tetsuya; Kumagai, Hiroshi; Nagashima, Katsuya; Mataki, Kentaro; Fujii, Kengo; Noguchi, Hiroshi; Funayama, Toru; Kawamoto, Hiroaki; Sankai, Yoshiyuki; Yamazaki, Masashi

    2018-05-03

    Work-related low back pain is a serious socioeconomic problem. This study examined whether HAL for Care Support, which is a newly developed wearable robot, would decrease lumbar fatigue and improve lifting performance during repetitive lifting movements. Eighteen healthy volunteers (11 men, 7 women) performed repetitive stoop lifting movements of a cardboard box weighing 12 kg as many times as possible. The first lifting trial was executed without HAL for Care Support, and the second was with it. We evaluated the VAS of lumbar fatigue as the lumbar load and the number of lifts and the lifting time as lifting performance. Without HAL for Care Support, the mean VAS of lumbar fatigue, the number of lifts and lifting time were 68 mm, 60 and 230 s; with HAL for Care Support, they were 51 mm, 87 and 332 s, respectively. Both lifting performance measures were significantly improved by using HAL for Care Support (Fig. 2). A power analysis showed that there was sufficient statistical power for the VAS of lumbar fatigue (0.99), the number of lifts (0.92), and lifting time (0.93). All participants performed their repetitive lifting trials safely. There were no adverse events caused by using HAL for Care Support. In conclusion, the HAL for Care Support can decrease lumbar load and improve the lifting performance during repetitive stoop lifting movements in healthy adults. Copyright © 2018. Published by Elsevier Ltd.

  3. Isostructurality and non-isostructurality in the series of halogenated organic crystal substances. The structure of Hal-aggregates

    International Nuclear Information System (INIS)

    Grineva, O.V.; Zorkij, P.M.

    2001-01-01

    Local characteristics and the type of intermolecular Hal-aggregates (ensembles of contacting halogen atoms of adjacent molecules) present in chemically similar halogenated crystal substances, differing only in the nature of Hal atoms, are compared. 23 series of halogenated hydrocarbons, including 57 crystal structures were considered. A clearly pronounced specificity of Hal-aggregates for compounds with a low and intermediate content of halogen was revealed. It was found that, as a rule, coordination number of Hal atom by Hal adjacent atoms increases in the series F-Cl-Br-I [ru

  4. Three-dimensional versus two-dimensional vision in laparoscopy

    DEFF Research Database (Denmark)

    Sørensen, Stine D; Savran, Mona Meral; Konge, Lars

    2016-01-01

    were cohort size and characteristics, skill trained or operation performed, instrument used, outcome measures, and conclusions. Two independent authors performed the search and data extraction. RESULTS: Three hundred and forty articles were screened for eligibility, and 31 RCTs were included...... through a two-dimensional (2D) projection on a monitor, which results in loss of depth perception. To counter this problem, 3D imaging for laparoscopy was developed. A systematic review of the literature was performed to assess the effect of 3D laparoscopy. METHODS: A systematic search of the literature...... in the review. Three trials were carried out in a clinical setting, and 28 trials used a simulated setting. Time was used as an outcome measure in all of the trials, and number of errors was used in 19 out of 31 trials. Twenty-two out of 31 trials (71 %) showed a reduction in performance time, and 12 out of 19...

  5. Low vs Standard Pressures in Gynecologic Laparoscopy: a Systematic Review.

    Science.gov (United States)

    Kyle, Esther B; Maheux-Lacroix, Sarah; Boutin, Amélie; Laberge, Philippe Y; Lemyre, Madeleine

    2016-01-01

    The optimal intraperitoneal pressure during laparoscopy is not known. Recent literature found benefits of using lower pressures, but the safety of doing abdominal surgery with low peritoneal pressures needs to be assessed. This systematic review compares low with standard pneumoperitoneum during gynecologic laparoscopy. We searched Medline, Embase, and the Cochrane Library for randomized controlled trials comparing intraperitoneal pressures during gynecologic laparoscopy. Two authors reviewed references and extracted data from included trials. Risk ratios, mean differences, and standard mean differences were calculated and pooled using RevMan5. Of 2251 studies identified, three were included in the systematic review, for a total of 238 patients. We found a statistically significant but modest diminution in postoperative pain of 0.38 standardized unit based on an original 10-point scale (95% confidence interval [CI], -0.67 to -0.08) during the immediate postoperative period when using low intraperitoneal pressure of 8 mm Hg compared with ≥ 12 mm Hg and of 0.50 (95% CI, -0.80 to -0.21) 24 hours after the surgery. Lower pressures were associated with worse visualization of the surgical field (risk ratio, 10.31; 95% CI, 1.29-82.38). We found no difference between groups over blood loss, duration of surgery, hospital length of stay, or the need for increased pressure. Low intraperitoneal pressures during gynecologic laparoscopy cannot be recommended on the behalf of this review because improvement in pain scores is minimal and visualization of the surgical field is affected. The safety of this intervention as well as cost-effectiveness considerations need to be further studied.

  6. Diagnostic Laparoscopy for Trauma: How Not to Miss Injuries.

    Science.gov (United States)

    Koto, Modise Z; Matsevych, Oleh Y; Aldous, Colleen

    2018-05-01

    Diagnostic laparoscopy (DL) is a well-accepted approach for penetrating abdominal trauma (PAT). However, the steps of procedure and the systematic laparoscopic examination are not clearly defined in the literature. The aim of this study was to clarify the definition of DL in trauma surgery by auditing DL performed for PAT at our institution, and to describe the strategies on how to avoid missed injuries. The data of patients managed with laparoscopy for PAT from January 2012 to December 2015 were retrospectively analyzed. The details of operative technique and strategies on how to avoid missed injuries were discussed. Out of 250 patients managed with laparoscopy for PAT, 113 (45%) patients underwent DL. Stab wounds sustained 94 (83%) patients. The penetration of the peritoneal cavity or retroperitoneum was documented in 67 (59%) of patients. Organ evisceration was present in 21 (19%) patients. Multiple injuries were present in 22% of cases. The chest was the most common associated injury. Two (1.8%) iatrogenic injuries were recorded. The conversion rate was 1.7% (2/115). The mean length of hospital stay was 4 days. There were no missed injuries. In the therapeutic laparoscopy (TL) group, DL was performed as the initial part and identified all injuries. There were no missed injuries in the TL group. The predetermined sequential steps of DL and the standard systematic examination of intraabdominal organs were described. DL is a feasible and safe procedure. It accurately identifies intraabdominal injuries. The selected use of preoperative imaging, adherence to the predetermined steps of procedure and the standard systematic laparoscopic examination will minimize the rate of missed injuries.

  7. Khush Hal Nameh: dal teatro all’emozione etnografica - Khush Hal Nameh: from theatre to ethnographic emotion

    Directory of Open Access Journals (Sweden)

    Veronica Boldrin

    2011-12-01

    Full Text Available During the summer of 2011 the theatre company of an Italian High School puts on “Khush Hal Nameh”, an ethnographic drama by Ariane Baghaï, which through the tale of the rivalry between two Pashtun brothers projects both actors and spectators in the heart of Afghan society and in its kinship structures and dynamics of power. The article concentrates on the protagonists of this initiative, above all on the young actors, in order to understand what their “structure of experience” was like. It therefore follows the various phases of the staging process starting with the motivations of the students to take part to the experiment and the assessment of additional knowledge and competence; it also analyzes a wide range of relationships such as between actors and characters, between the theatre company and outside world and also between students and schoolinstitution. The theatre laboratory reveals itself as an ideal space to reflect about social relations and ethnographic drama as in Victor Turner’s performing ethnography: a valid instrument reach to an emotional and cognitive comprehension of the Other.

  8. Laparoscopy in small bowel obstruction - current status - review.

    Science.gov (United States)

    Szeliga, Jacek; Jackowski, Marek

    2017-12-01

    Acute small bowel obstruction (SBO) is an urgent medical condition. Its diagnosis is based mainly on a clinical examination followed by confirmatory simple routine radiological examinations such as plain X-ray of the abdominal cavity or computed tomography (CT). However, a real surgical challenge is not a decision whether to perform a surgery, but a decision when and how to perform it. To determine the place of laparoscopy in contemporary management of acute SBO based on the current literature. A review of the literature based on the Medline database and including mainly the period of 2013-2017 was performed. With regard to SBO, laparoscopy is a technique showing its advantages resulting from a minimally invasive approach. However, SBO is still a condition where the use of laparoscopy is limited mainly to selected cases such as SBO caused by single adhesions or foreign bodies. A basic limitation of using this technique is advanced and complicated SBO and lack of sufficient technical skills of the surgeon.

  9. [Efficiency of combined methods of hemorroid treatment using hal-rar and laser destruction].

    Science.gov (United States)

    Rodoman, G V; Kornev, L V; Shalaeva, T I; Malushenko, R N

    2017-01-01

    To develop the combined method of treatment of hemorrhoids with arterial ligation under Doppler control and laser destruction of internal and external hemorrhoids. The study included 100 patients with chronic hemorrhoids stage II and III. Combined method of HAL-laser was used in study group, HAL RAR-technique in control group 1 and closed hemorrhoidectomy with linear stapler in control group 2. Сomparative evaluation of results in both groups was performed. Combined method overcomes the drawbacks of traditional surgical treatment and limitations in external components elimination which are inherent for HAL-RAR. Moreover, it has a higher efficiency in treating of hemorrhoids stage II-III compared with HAL-RAR and is equally safe and well tolerable for patients. This method does not increase the risk of recurrence, reduces incidence of complications and time of disability.

  10. Maury Nussbaum reappointed as Hal G. Prillaman Professor Fellow in Industrial and Systems Engineering

    OpenAIRE

    Owczarski, Mark

    2010-01-01

    Maury Nussbaum, professor of industrial and systems engineering in the College of Engineering at Virginia Tech, has been reappointed as the Hal G. Prillaman Professor Fellow in Industrial and Systems Engineering by the Virginia Tech Board of Visitors.

  11. Hal Is a Bacillus anthracis Heme Acquisition Protein

    Science.gov (United States)

    Balderas, Miriam A.; Nobles, Christopher L.; Honsa, Erin S.; Alicki, Embriette R.

    2012-01-01

    The metal iron is a limiting nutrient for bacteria during infection. Bacillus anthracis, the causative agent of anthrax and a potential weapon of bioterrorism, grows rapidly in mammalian hosts, which suggests that it efficiently attains iron during infection. Recent studies have uncovered both heme (isd) and siderophore-mediated (asb) iron transport pathways in this pathogen. Whereas deletion of the asb genes results in reduced virulence, the loss of three surface components from isd had no effect, thereby leaving open the question of what additional factors in B. anthracis are responsible for iron uptake from the most abundant iron source for mammals, heme. Here, we describe the first functional characterization of bas0520, a gene recently implicated in anthrax disease progression. bas0520 encodes a single near-iron transporter (NEAT) domain and several leucine-rich repeats. The NEAT domain binds heme, despite lacking a stabilizing tyrosine common to the NEAT superfamily of hemoproteins. The NEAT domain also binds hemoglobin and can acquire heme from hemoglobin in solution. Finally, deletion of bas0520 resulted in bacilli unable to grow efficiently on heme or hemoglobin as an iron source and yielded the most significant phenotype relative to that for other putative heme uptake systems, a result that suggests that this protein plays a prominent role in the replication of B. anthracis in hematogenous environments. Thus, we have assigned the name of Hal (heme-acquisition leucine-rich repeat protein) to BAS0520. These studies advance our understanding of heme acquisition by this dangerous pathogen and justify efforts to determine the mechanistic function of this novel protein for vaccine or inhibitor development. PMID:22865843

  12. [Indications for laparoscopy in an internal medicine department in Dakar as indicated by echotomography].

    Science.gov (United States)

    Aubry, P; Vergne, R; Oddes, B; Delanoue, G; Larregle, B; Seurat, P L

    1984-01-01

    A real time ultrasonography was set up in a senegalese hospital, resulting in a decrease of laparoscopy indications. Laparoscopy is given up for the diagnosis of liver abcess, jaundice and "abdominal masses". It must no more be included in the first step check up for hepatocellular carcinoma, because ultrasonography and cytology after puncture are enough to confirm the diagnosis. Laparoscopy remains essential for peritoneal diseases. Hepatic needle biopsy under laparoscopy control remains necessary to ensure with certainty the diagnosis of cirrhosis and especially chronic hepatitis, provided that no countraindications are found.

  13. Multiple huge epiphrenic esophageal diverticula with motility disease treated with video-assisted thoracoscopic and hand-assisted laparoscopic esophagectomy: a case report.

    Science.gov (United States)

    Taniguchi, Yoshiki; Takahashi, Tsuyoshi; Nakajima, Kiyokazu; Higashi, Shigeyoshi; Tanaka, Koji; Miyazaki, Yasuhiro; Makino, Tomoki; Kurokawa, Yukinori; Yamasaki, Makoto; Takiguchi, Shuji; Mori, Masaki; Doki, Yuichiro

    2017-12-01

    Epiphrenic esophageal diverticulum is a rare condition that is often associated with a concomitant esophageal motor disorder. Some patients have the chief complaints of swallowing difficulty and gastroesophageal reflux; traditionally, such diverticula have been resected via right thoracotomy. Here, we describe a case with huge multiple epiphrenic diverticula with motility disorder, which were successfully resected using a video-assisted thoracic and laparoscopic procedure. A 63-year-old man was admitted due to dysphagia, heartburn, and vomiting. An esophagogram demonstrated an S-shaped lower esophagus with multiple epiphrenic diverticula (75 × 55 mm and 30 × 30 mm) and obstruction by the lower esophageal sphincter (LES). Esophageal manometry showed normal peristaltic contractions in the esophageal body, whereas the LES pressure was high (98.6 mmHg). The pressure vector volume of LES was 23,972 mmHg 2  cm. Based on these findings, we diagnosed huge multiple epiphrenic diverticula with a hypertensive lower esophageal sphincter and judged that resection might be required. We performed lower esophagectomy with gastric conduit reconstruction using a video-assisted thoracic and hand-assisted laparoscopic procedure. The postoperative course was uneventful, and the esophagogram demonstrated good passage, with no leakage, stenosis, or diverticula. The most common causes of mid-esophageal and epiphrenic diverticula are motility disorders of the esophageal body; appropriate treatment should be considered based on the morphological and motility findings.

  14. Ultrasound-guided transversus abdominis plane blocks for patients undergoing laparoscopic hand-assisted nephrectomy: a randomized, placebo-controlled trial

    Directory of Open Access Journals (Sweden)

    Aniskevich S

    2014-04-01

    Full Text Available Stephen Aniskevich,1 C Burcin Taner,2 Dana K Perry,2 Christopher B Robards,3 Steven B Porter,3 Colleen S Thomas,4 Ilana I Logvinov,5 Steven R Clendenen41Department of Anesthesia, Division of Transplant Anesthesia, 2Department of Transplantation, 3Department of Anesthesia, Division of Regional Anesthesia, 4Division of Health Sciences Research, Section of Biostatistics, 5Department of Anesthesia, Mayo Clinic Florida, Jacksonville, FL, USAAbstract: Postoperative pain is a common complaint following living kidney donation or tumor resection using the laparoscopic hand-assisted technique. To evaluate the potential analgesic benefit of transversus abdominis plane blocks, we conducted a randomized, double-blind, placebo-controlled study in 21 patients scheduled to undergo elective living-donor nephrectomy or single-sided nephrectomy for tumor. Patients were randomized to receive either 20 mL of 0.5% ropivacaine or 20 mL of 0.9% saline bilaterally to the transversus abdominis plane under ultrasound guidance. We found that transversus abdominis plane blocks reduced overall pain scores at 24 hours, with a trend toward decreased total morphine consumption. Nausea, vomiting, sedation, and time to discharge were not significantly different between the two study groups.Keywords: transversus abdominis plane block, nephrectomy, kidney donor, ultrasound guidance

  15. Role of laparoscopy in evaluation of abdominal pain

    International Nuclear Information System (INIS)

    Masud, M.; Adil, M.; Gondal, Z.I.; Aquil, A.

    2017-01-01

    Objective: To evaluate the diagnostic efficacy of laparoscopy in ill-defined recurrent chronic abdominal pain. Study Design: Prospective study. Place and Duration of Study: Surgical department, Military Hospital Rawalpindi, from Jul 2011 to Dec 2013. Material and Methods: A total of 102 patients who presented to surgical department with chronic recurrent abdominal pain of unknown etiology and underwent diagnostic laparoscopy were included in our study. Patients with acute onset of abdominal pain, hemodynamically unstable, pregnant or those in which diagnosis can be made by radiological techniques were excluded from our study. Patient's demographic data, clinical findings and laparoscopic findings were recorded. Finally data was analyzed by using SPSS version 21. Results: Out of 110 patients 96 were female while remaining 14 were male. The age range of the patients was 20- 70 years with mean age of 50 +- 10 years. The most common site of pain was lower abdomen while mean duration of abdominal pain was 34 weeks. Laparoscopic findings include acute recurrent appendicitis in 32 (29.09%) patients, cholecystitis with biliary sludge in 14 (12.72%), pelvic inflammatory disease in 12 (10.90%), ovarian cyst in 11(10%), adhesions in 10(9.09%), intestinal tuberculosis in 8 (7.27%), mesenteric lymphadenitis in 7 (6.36%), lymphoma in 4 (3.63%), ectopic pregnancy in 3 (2.7%), CA gallbladder in 2 (1.81%), meckels diverticulum in 2 (1.81%), endometriosis in 2 (1.81%) and crohns disease in 1 (0.9%) patients. Mean operative time was 48 min while average hospital stay was 2-3 days. No major complications were noticed. Conclusion: Laparoscopy in our clinical setup has significant role in diagnosing cases of vague abdominal pain which cannot be diagnosed by routine investigations. (author)

  16. OPPORTUNITIES OF LAPAROSCOPY IN THE TREATMENT OF ESOPHAGEAL ACHALASIA

    Directory of Open Access Journals (Sweden)

    A. S. Allakhverdyan

    2015-01-01

    Full Text Available The article describes opportunities and results of laparoscopic oesophagocardiomiotomy and laparoscopic transhiatal oesophagus removal without hand assistance in esophageal achalasia (cardiospasm. In total, such operations were performed in 196 and 31 of cases (of 423 patients, respectively. There were minimal numbers of relapses (below 2.3% after laparoscopic oesophagocardiomiotomy done by the proposed technique. All cases of reflux esophagitis were diagnosed after esophagocardiomiotomy with Dor fundoplication.After cardiodilatation, disease relapses were registered in 57% of patients. The advantages of a laparoscopic access for oesophagectomy are shown and technical particular of this intervention are analyzed based on a case history. The principles of Fast track surgery in this patient category are discussed that allow for reduction of the length of hospital stay by 40%.

  17. The voice of Holland: Dutch public and patient's opinion favours single-port laparoscopy.

    Science.gov (United States)

    Fransen, Sofie Af; Broeders, Epm; Stassen, Lps; Bouvy, Nd

    2014-07-01

    Single-port laparoscopy is prospected as the future of minimal invasive surgery. It is hypothesised to cause less post operative pain, with a shorter hospitalisation period and improved cosmetic results. Population- and patient-based opinion is important for the adaptation of new techniques. This study aimed to assess the opinion and perception of a healthy population and a patient population on single-port laparoscopy compared with conventional laparoscopy. An anonymous 33-item questionnaire, describing conventional and single-port laparoscopy, was given to 101 patients and 104 healthy volunteers. The survey participants (median age 44 years; range 17-82 years) were asked questions about their personal situation and their expectations and perceptions of the two different surgical techniques; conventional multi-port laparoscopy and single-port laparoscopy. A total of 72% of the participants had never heard of single-port laparoscopy before. The most important concern in both groups was the risk of surgical complications. When complication risks remain similar, 80% prefers single-port laparoscopy to conventional laparoscopy. When the risk of complications increases from 1% to 10%, 43% of all participants prefer single-port laparoscopy. A total of 70% of the participants are prepared to receive treatment in another hospital if single-port surgery is not performed in their hometown hospital. The preference for single-port approach was higher in the female population. Although cure and safety remain the main concerns, the population and patients group have a favourable perception of single-port surgery. The impact of public opinion and patient perception towards innovative techniques is undeniable. If the safety of the two different procedures is similar, this study shows a positive attitude of both participant groups in favour of single-port laparoscopy. However, solid scientific proof for the safety and feasibility of this new surgical technique needs to be obtained

  18. HAL: a hierarchical format for storing and analyzing multiple genome alignments.

    Science.gov (United States)

    Hickey, Glenn; Paten, Benedict; Earl, Dent; Zerbino, Daniel; Haussler, David

    2013-05-15

    Large multiple genome alignments and inferred ancestral genomes are ideal resources for comparative studies of molecular evolution, and advances in sequencing and computing technology are making them increasingly obtainable. These structures can provide a rich understanding of the genetic relationships between all subsets of species they contain. Current formats for storing genomic alignments, such as XMFA and MAF, are all indexed or ordered using a single reference genome, however, which limits the information that can be queried with respect to other species and clades. This loss of information grows with the number of species under comparison, as well as their phylogenetic distance. We present HAL, a compressed, graph-based hierarchical alignment format for storing multiple genome alignments and ancestral reconstructions. HAL graphs are indexed on all genomes they contain. Furthermore, they are organized phylogenetically, which allows for modular and parallel access to arbitrary subclades without fragmentation because of rearrangements that have occurred in other lineages. HAL graphs can be created or read with a comprehensive C++ API. A set of tools is also provided to perform basic operations, such as importing and exporting data, identifying mutations and coordinate mapping (liftover). All documentation and source code for the HAL API and tools are freely available at http://github.com/glennhickey/hal. hickey@soe.ucsc.edu or haussler@soe.ucsc.edu Supplementary data are available at Bioinformatics online.

  19. RevManHAL: towards automatic text generation in systematic reviews.

    Science.gov (United States)

    Torres Torres, Mercedes; Adams, Clive E

    2017-02-09

    Systematic reviews are a key part of healthcare evaluation. They involve important painstaking but repetitive work. A major producer of systematic reviews, the Cochrane Collaboration, employs Review Manager (RevMan) programme-a software which assists reviewers and produces XML-structured files. This paper describes an add-on programme (RevManHAL) which helps auto-generate the abstract, results and discussion sections of RevMan-generated reviews in multiple languages. The paper also describes future developments for RevManHAL. RevManHAL was created in Java using NetBeans by a programmer working full time for 2 months. The resulting open-source programme uses editable phrase banks to envelop text/numbers from within the prepared RevMan file in formatted readable text of a chosen language. In this way, considerable parts of the review's 'abstract', 'results' and 'discussion' sections are created and a phrase added to 'acknowledgements'. RevManHAL's output needs to be checked by reviewers, but already, from our experience within the Cochrane Schizophrenia Group (200 maintained reviews, 900 reviewers), RevManHAL has saved much time which is better employed thinking about the meaning of the data rather than restating them. Many more functions will become possible as review writing becomes increasingly automated.

  20. Highly immersive virtual reality laparoscopy simulation: development and future aspects.

    Science.gov (United States)

    Huber, Tobias; Wunderling, Tom; Paschold, Markus; Lang, Hauke; Kneist, Werner; Hansen, Christian

    2018-02-01

    Virtual reality (VR) applications with head-mounted displays (HMDs) have had an impact on information and multimedia technologies. The current work aimed to describe the process of developing a highly immersive VR simulation for laparoscopic surgery. We combined a VR laparoscopy simulator (LapSim) and a VR-HMD to create a user-friendly VR simulation scenario. Continuous clinical feedback was an essential aspect of the development process. We created an artificial VR (AVR) scenario by integrating the simulator video output with VR game components of figures and equipment in an operating room. We also created a highly immersive VR surrounding (IVR) by integrating the simulator video output with a [Formula: see text] video of a standard laparoscopy scenario in the department's operating room. Clinical feedback led to optimization of the visualization, synchronization, and resolution of the virtual operating rooms (in both the IVR and the AVR). Preliminary testing results revealed that individuals experienced a high degree of exhilaration and presence, with rare events of motion sickness. The technical performance showed no significant difference compared to that achieved with the standard LapSim. Our results provided a proof of concept for the technical feasibility of an custom highly immersive VR-HMD setup. Future technical research is needed to improve the visualization, immersion, and capability of interacting within the virtual scenario.

  1. Laparoscopy in Urology Practice at a Tertiary Care Centre

    International Nuclear Information System (INIS)

    Quddus, M. B.; Mahmud, S. M.

    2014-01-01

    Objective: To describe the results of laparoscopic procedures at a Urology - Nephrology tertiary care centre. Study Design: Case series / observational study. Place and Duration of Study: The Kidney Centre Postgraduate Training Institute, Karachi, from August 2007 to March 2012. Methodology: Medical records of all planned laparoscopic surgery conducted during the study period were reviewed. Those cases which to open surgery were excluded. All were performed by a single surgeon, initially as supervised and later independently. Data was maintained for demographic data, procedure details, length of hospital stay, and complications including conversion to open surgeries. Data was analyzed through SPSS 17.0. Results: There were 36 planned laparoscopic surgeries in the specified period. Out of 36 cases, 8 were converted to open surgery. Those who underwent laparoscopic surgery include two diagnostic procedures and renal cyst deroofing each, four ureterolithotomy, nineteen simple nephrectomy and one radical nephrectomy. So in total 28 cases were performed on 15 females and 13 males with mean age of 33.01 A +- 10.9 years. The mean operative time was 216 A +- 100 minutes and mean length of hospital stay was as 2.7 A +- 1.04 days. There were 10 complications in 28 cases, majority being Clavien Grade II including 7% (2/28) blood transfusion. Conclusion: There are technical challenges in learning laparoscopy for practicing urologists. Following some learning model in a systematic manner will help surmounting the technical challenges in learning laparoscopy. (author)

  2. The strain index and TLV for HAL: risk of lateral epicondylitis in a prospective cohort.

    Science.gov (United States)

    Garg, Arun; Kapellusch, Jay M; Hegmann, Kurt T; Thiese, Matthew S; Merryweather, Andrew S; Wang, Ying-Chih; Malloy, Elizabeth J

    2014-03-01

    This study's objective was to quantify exposure-response relationships between job physical exposure (JPE) and incidence of lateral epicondylitis (LE). A cohort of 536 workers was enrolled from 10 manufacturing facilities and followed monthly for 6 years to ascertain changes in JPE and health status. JPE was individually measured and quantified using the Strain Index (SI) and TLV for HAL. Worker demographics, medical history, psychosocial factors, and current musculoskeletal disorders were obtained. Fifty-six workers developed LE. In multivariate models JPE, age, family problems, and swimming were associated with increased risk of LE. SI showed an exposure-response relationship with maximum hazard ratio (HR) of 4.5(P = 0.04). TLV for HAL showed a non-statistically significant trend for increased risk of LE (P = 0.19). JPE is associated with increased risk of LE. The SI and TLV for HAL are useful metrics for estimating JPE. © 2013 Wiley Periodicals, Inc.

  3. Current matrix element in HAL QCD's wavefunction-equivalent potential method

    Science.gov (United States)

    Watanabe, Kai; Ishii, Noriyoshi

    2018-04-01

    We give a formula to calculate a matrix element of a conserved current in the effective quantum mechanics defined by the wavefunction-equivalent potentials proposed by the HAL QCD collaboration. As a first step, a non-relativistic field theory with two-channel coupling is considered as the original theory, with which a wavefunction-equivalent HAL QCD potential is obtained in a closed analytic form. The external field method is used to derive the formula by demanding that the result should agree with the original theory. With this formula, the matrix element is obtained by sandwiching the effective current operator between the left and right eigenfunctions of the effective Hamiltonian associated with the HAL QCD potential. In addition to the naive one-body current, the effective current operator contains an additional two-body term emerging from the degrees of freedom which has been integrated out.

  4. Study of ammonia dynamics in mixed crystals K1-x(NH4)xHal (Hal = Cl, Br, I) by the inelastic neutron scattering

    International Nuclear Information System (INIS)

    Natkanets, I.; Smirnov, L.S.; Solov'ev, A.I.; )

    1997-01-01

    The investigation of the dynamics of ammonium ion in the disordered α-phase of mixed crystals K 1-x (NH 4 ) x Hal (Hal = Cl, Br, I) is carried out by the inelastic incoherent neutron scattering (IINS) method. IINS spectra are measured in the 2-200 meV energy range and the 10-300 K temperature range by the time-of-flight method. The generalized densities of phonon states are defined in the single-phonon approximation. It is found out that the libration mode of ammonium ion has the weak concentration dependence. Resonant modes are observed at low temperature for all concentration range of the existence of the disordered α-phase. The broadening of resonant modes at the expensive of the jump rotation diffusion of ammonium ions takes place at temperature above 10 K [ru

  5. Gait training using a hybrid assistive limb (HAL) attenuates head drop: A case report.

    Science.gov (United States)

    Miura, Kousei; Koda, Masao; Kadone, Hideki; Kubota, Shigeki; Shimizu, Yukiyo; Kumagai, Hiroshi; Nagashima, Katsuya; Mataki, Kentaro; Fujii, Kengo; Noguchi, Hiroshi; Funayama, Toru; Abe, Tetsuya; Sankai, Yoshiyuki; Yamazaki, Masashi

    2018-03-31

    Dropped head syndrome (DHS) is characterized by a chin-on-chest deformity, which can severely interfere with forward vision and impair activities of daily living. A standardized treatment strategy for DHS has not been established. To our knowledge, this is the first case report describing the efficacy of gait training using a hybrid assistive limb (HAL) for DHS. A 75-year-old man showed apparent head drop in a standing position, resulting in passively reducible chin-on-chest deformity. A radiograph image showed apparent cervical kyphosis. Center of gravity of the head (CGH)-C7 SVA was +115 mm, CL was -40°, and T1S 39°. The patient underwent a treatment program using HAL, in which gait training was mainly performed, 60 min a day, 5 days a week for 2 weeks (10 sessions). After 2-3 sessions, dropped head started to attenuate. At the end of 10 sessions, the patient was able to walk with normal posture and radiograph images showed cervical kyphosis dramatically decreased because of HAL training. CGH-C7 SVA was 42 mm, CL was -1.7°, and T1S was 30°. Three months' outpatient follow-up revealed a slight deterioration of cervical alignment. However, the patient was able to maintain a better cervical alignment than before HAL training and keep walking with forward vision. There were no complications in any HAL treatment session. In conclusion, gait training using HAL is an option for treatment of DHS in addition to previously reported neck extensor muscle training. Copyright © 2018 Elsevier Ltd. All rights reserved.

  6. Development of urologic laparoscopy in Germany, Austria, and Switzerland: a survey among urologists.

    Science.gov (United States)

    Imkamp, Florian; Herrmann, Thomas R W; Stolzenburg, Jens U; Rassweiler, Jens; Sulser, Tullio; Zimmermann, Uwe; Dziuba, Sebastian; Kuczyk, Markus A; Burchardt, Martin

    2014-12-01

    Laparoscopy introduction has dramatically changed urology. Novel techniques, such as laparoendoscopic single-site surgery (LESS) and natural orifice translumenal endoscopic surgery (NOTES), might also have substantial influence. This 2012 survey evaluated present laparoscopy use, its appraisal among urologic surgeons, laparoscopy training, and use of new techniques. Results were compared to the previous surveys, demonstrating the 10-year development of laparoscopy. A detailed questionnaire regarding demographic data, laparoscopy use, attitudes concerning laparoscopy, and novel techniques was send to 424 departments in Germany, Austria, and Switzerland. Procedures performed in 25 indications were quantitatively evaluated. The response rate was 63 % (269). Eighty-six percent of the respondents reported performing laparoscopy, compared to 54 % in 2002. Only 16 % expected economic advantages with laparoscopy, whereas 67 % expected shorter hospitalization. Seventy percent of responders anticipated comparable functional and oncological results between laparoscopic procedures and open surgery. Slow learning curves (81 %) and insufficient training facilities (32 %) were reported to impair laparoscopic surgery. On average, laparoscopic and non-laparoscopic surgical teams consisted of 2.5 and 3.5 members, respectively. LESS procedures were performed at 15 % of institutions. Twenty-two percent of respondents considered NOTES techniques valuable for future urology. Few indications (laparoscopic prostatectomies or nephrectomies) were performed frequently in specialized centers, and the rapidly increasing procedure numbers observed between 2002 and 2007 had dropped to a mild accretion. The results demonstrate broad acceptance of laparoscopy in German urologic surgery, depict the need for structured training facilities, and indicate limited impact of novel techniques (LESS and NOTES). The survey demonstrates the 10-year development of urologic laparoscopy and the broad acceptance

  7. Pengembangan Model Pembangunan Ummat Melalui Lembaga Filantropi Islam Sebagai Bentuk Dakwah bil Hal

    Directory of Open Access Journals (Sweden)

    Abdurrazaq Abdurrazaq

    2016-03-01

    Full Text Available Makalah ini mengkaji mengenai dakwah bil hal. Dakwah bil-hal yang merupakan salah satu metode dalam berdakwah menjadi bagian yang mempertemukan dengan konsep filantropi dalam Islam. Dalam ajaran Islam, wacana filantropi sesungguhnya sudah ada dan melekat dalam sistem teologi yang dimilikinya dan telah dipraktekkan sejak dahulu dalam bentuk zakat, wakaf, dan sebagainya. Program-program filantropi yang dalam pelaksanaannya membantu memperbaiki kondisi ummat dalam bidang pendidikan, kesejahteraan, kesehatan, menjauhkan dari kefakiran dan meningkatkan kualitas hidup adalah bagian dari ajaran Islam. Bentuk-bentuk pelaksanaan filantropi inilah yang merupakan bentuk dakwah bil hal. Melalui kegiatan meredistribusi kekayaan, memberikan santunan dan banyak lagi kegiatan amal lainnya sebagaimana halnya dalam filantropi Islam, maka pelaku-pelaku atau mediator yang menjalankan kegiatan meredistribusi kekayaan ini menjadi penting, melakukan aksi nyata dalam perbaikan kondisi umat (dakwah bil hal. Program filantropi dalam bentuk CSR yang telah dijalankan oleh Perbankan Syariah di Indonesia telah menyentuh aspek-aspek penting dalam rangka pembangunan umat, seperti: kesehatan, pendidikan dan kesejahteraan.   This paper examined about dakwah bil hal. Da'wah bil-hal was one method of preaching that became part that brought with the concept of philanthropy in Islam. In Islamic doctrine, philanthropy discourse in fact already existed and was inherent in theological system and had been practiced since long ago in the form of zakat, waqf, and so on. Philanthropic programs in implementation helped improve the condition of the Ummah in the areas of education, welfare, health, estranged from poverty and improved the quality of life was part of the doctrine of Islam. The forms of implementation of philanthropy were what a form of dakwah bil hal was. Through the activities of redistribute wealth, providing compensation and many other charitable activities, as well as in

  8. HAL-2 promotes homologous pairing during Caenorhabditis elegans meiosis by antagonizing inhibitory effects of synaptonemal complex precursors.

    Science.gov (United States)

    Zhang, Weibin; Miley, Natasha; Zastrow, Michael S; MacQueen, Amy J; Sato, Aya; Nabeshima, Kentaro; Martinez-Perez, Enrique; Mlynarczyk-Evans, Susanna; Carlton, Peter M; Villeneuve, Anne M

    2012-01-01

    During meiosis, chromosomes align with their homologous pairing partners and stabilize this alignment through assembly of the synaptonemal complex (SC). Since the SC assembles cooperatively yet is indifferent to homology, pairing and SC assembly must be tightly coordinated. We identify HAL-2 as a key mediator in this coordination, showing that HAL-2 promotes pairing largely by preventing detrimental effects of SC precursors (SYP proteins). hal-2 mutants fail to establish pairing and lack multiple markers of chromosome movement mediated by pairing centers (PCs), chromosome sites that link chromosomes to cytoplasmic microtubules through nuclear envelope-spanning complexes. Moreover, SYP proteins load inappropriately along individual unpaired chromosomes in hal-2 mutants, and markers of PC-dependent movement and function are restored in hal-2; syp double mutants. These and other data indicate that SYP proteins can impede pairing and that HAL-2 promotes pairing predominantly but not exclusively by counteracting this inhibition, thereby enabling activation and regulation of PC function. HAL-2 concentrates in the germ cell nucleoplasm and colocalizes with SYP proteins in nuclear aggregates when SC assembly is prevented. We propose that HAL-2 functions to shepherd SYP proteins prior to licensing of SC assembly, preventing untimely interactions between SC precursors and chromosomes and allowing sufficient accumulation of precursors for rapid cooperative assembly upon homology verification.

  9. HIV-1/HAART-Related Lipodystrophy Syndrome (HALS Is Associated with Decreased Circulating sTWEAK Levels.

    Directory of Open Access Journals (Sweden)

    Miguel López-Dupla

    Full Text Available Obesity and HIV-1/HAART-associated lipodystrophy syndrome (HALS share clinical, pathological and mechanistic features. Tumor necrosis factor-like weak inducer of apoptosis (TWEAK is a multifunctional cytokine that plays an important role in obesity and related diseases. We sought to explore the relationship between HALS and circulating levels of soluble (s TWEAK and its scavenger receptor sCD163.This was a cross-sectional multicenter study of 120 HIV-1-infected patients treated with a stable HAART regimen; 56 with overt HALS and 64 without HALS. Epidemiological and clinical variables were determined. Serum levels of sTWEAK and sCD163 levels were measured by ELISA. Results were analyzed with Student's t-test, Mann-Whitney U and χ2 test. Pearson and Spearman correlation were used to estimate the strength of association between variables.Circulating sTWEAK was significantly decreased in HALS patients compared with non-HALS patients (2.81±0.2 vs. 2.94±0.28 pg/mL, p = 0.018. No changes were observed in sCD163 levels in the studied cohorts. On multivariate analysis, a lower log sTWEAK concentration was independently associated with the presence of HALS (OR 0.027, 95% CI 0.001-0.521, p = 0.027.HALS is associated with decreased sTWEAK levels.

  10. Intravenous lidocaine for post-operative pain relief after hand-assisted laparoscopic colon surgery: a randomized, placebo-controlled clinical trial.

    Science.gov (United States)

    Tikuišis, R; Miliauskas, P; Samalavičius, N E; Žurauskas, A; Samalavičius, R; Zabulis, V

    2014-04-01

    Perioperative intravenous (IV) infusion of lidocaine has been shown to decrease post-operative pain, shorten time to return of bowel function, and reduce the length of hospital stay. This randomized, prospective, double-blinded, placebo-controlled clinical trial evaluated the impact of IV lidocaine on the quality of post-operative analgesia and other outcomes after hand-assisted laparoscopic colon surgery. Sixty four patients with colon cancer scheduled for elective colon resection were involved in this study. Patients were randomized to receive either lidocaine infusion [lidocaine group (LG)] or normal 0.9 % saline infusion [placebo group (PG)] for a period of 24 h. Anaesthetic and surgical techniques were standardized. Twenty-four-hour post-operative analgesia in the recovery area was maintained by continuous infusion of 0.1 μg/kg/h fentanyl. The primary outcome of the study was post-operative pain control. Pain was assessed using visual analogue scale (VAS) scores at 2, 4, 8, 12, and 24 h after surgery. Patients with a VAS score >3 were treated with ketorolac 30 mg as needed. Secondary outcomes included time to resumption of bowel function and length of hospital stay. Data in the two groups were compared using the two-tailed Student's t test. All statistical tests were two-tailed at a significance level of 0.05. Demographic characteristics and clinical features of both groups were similar. Intensity of pain at rest in LG compared with PG was significantly lower during the first 24 h post-operatively. LG patients reported significantly less pain during movements at 2-, 12-, and 24-h post-surgery than PG patients. The study showed that ketorolac consumption was significantly higher in PG: mean ketorolac consumption in LG was 43.77 ± 13.86 mg and in PG 51.67 ± 13.16 mg (p = 0.047). Compared with placebo, lidocaine infusion produced a 32 % reduction in time to the first drink (Cohen's d = 3.85), 16 % reduction in time to the first full diet

  11. [Ten years experience with laparoscopy in the state women's clinic of Nurenberg].

    Science.gov (United States)

    Stark, G; Heise, P; Bischoff, R

    1979-03-15

    During the period from 1968--1977 2400 laparoscopies were performed. Of these 10.7% were for diagnostic purposes only, in 3.6% of the cases laparoscopy was combined with biopsie and in 85.7% with tubal sterilization. Deaths or serious bleedings did not occur, laparotomies were not necessary. Total insignificant complications amounted to 1.6% (1.3% small bleedings which did not necessitate an operation and in 0.3% clinical signs of peritonitis, these disappeared after 3 to 15 days). In 0.7% laparoscopy was interrupted because of poor vision. Nine of 2055 women became pregnant after sterilization (4.5 pregnancies/1000 sterilizations). In 2 cases the ligamentum rotundum was coagulated, in 7 cases recanalization was histologically confirmed. Until Oct. 1975 coagulation was unipolar, afterwords bipolar. In 45.3% the patients had undergone an operation before, like Ceasarian section, gallbladder operation, appendectomy or umbilical hernia operation. Patients with longitudinal incision, with preceding peritonitis or ileus were excluded from laparoscopy. Laparoscopy was performed by all assistents during their last year of clinical instruction. Their first 30 laparoscopies were done under control, every assistent performed about 100 laparoscopies.

  12. Use of laparoscopy in trauma at a level II trauma center.

    Science.gov (United States)

    Barzana, Daniel C; Kotwall, Cyrus A; Clancy, Thomas V; Hope, William W

    2011-01-01

    Enthusiasm for the use of laparoscopy in trauma has not rivaled that for general surgery. The purpose of this study was to evaluate our experience with laparoscopy at a level II trauma center. A retrospective review of all trauma patients undergoing diagnostic or therapeutic laparoscopy was performed from January 2004 to July 2010. Laparoscopy was performed in 16 patients during the study period. The average age was 35 years. Injuries included left diaphragm in 4 patients, mesenteric injury in 2, and vaginal laceration, liver laceration, small bowel injury, renal laceration, urethral/pelvic, and colon injury in 1 patient each. Diagnostic laparoscopy was performed in 11 patients (69%) with 3 patients requiring conversion to an open procedure. Successful therapeutic laparoscopy was performed in 5 patients for repair of isolated diaphragm injuries (2), a small bowel injury, a colon injury, and placement of a suprapubic bladder catheter. Average length of stay was 5.6 days (range, 0 to 23), and 75% of patients were discharged home. Morbidity rate was 13% with no mortalities or missed injuries. Laparoscopy is a seldom-used modality at our trauma center; however, it may play a role in a select subset of patients.

  13. A Novel for High School Seniors: Hal Borland's "When the Legends Die."

    Science.gov (United States)

    Adkins, Carl A.

    1968-01-01

    Hal Borland's "When the Legends Die" is especially appropriate for high school seniors because its central problem--a Ute Indian boy's search for his identity and expected role in society--is exactly that faced by these students. The novel is divided into four sections, each concerned with a specific stage in the development of the…

  14. Comparative Analysis of Doppler Guided Hemorrhoidal Artery Ligation (DG-HAL) & Infrared Coagulation (IRC) in Management of Hemorrhoids.

    Science.gov (United States)

    Ahmad, Arshad; Kant, Rama; Gupta, Avneet

    2013-08-01

    Both Doppler-guided hemorrhoidal artery ligation (DG-HAL) and infrared coagulation (IRC) are well-established techniques in the management of hemorrhoids. The aim of the study is to compare the clinical outcomes of DG-HAL and IRC in the patients with grade 1 and 2 hemorrhoids. A total of 296 patients were registered for the study, but 51 patients were lost in follow-up; hence, finally 245 patients were included in the analysis. Patients were randomized into two groups (mean age, 42 years; range, 19-60 years). Group A (n = 116) was treated with DG-HAL and group B (n = 129) was treated with IRC. Patients were examined at 1 week, 1 month, and 6 months after the procedure. Mean time taken for HAL was 21 min and for IRC, 12 min. The cost of the DG-HAL procedure was 1,440 rupees ($31.53) and that of IRC was 376 rupees ($8). The mean duration of hospital stay after HAL was 6 h and after IRC, 2 h. Control of symptoms with HAL was 96 %, whereas with IRC, 81 %. Postoperative complication rate for HAL was 2 %, whereas for IRC, 13 %. Requirement of repeat procedure with HAL was 9 % and with IRC, 28 %. Both the procedures are minimally invasive, associated with minimal discomfort, and suitable for day care surgery. IRC requires lesser procedure time, lesser postoperative hospital stay, and has lower procedure cost, whereas DG-HAL is more effective in controlling symptoms of hemorrhoids, has lower post operative complication rate, and has lesser requirement of repeat procedure.

  15. The concept of laparoscopy-assisted pancreatobiliary EUS (LAP-EUS).

    Science.gov (United States)

    Ramesh, Jayapal; Christein, John; Varadarajulu, Shyam

    2013-05-01

    While laparoscopy-assisted endoscopic retrograde cholangiopancreatography can be performed for the diagnosis and management of pancreaticobiliary diseases in patients with Roux-en-Y (RY) anatomy; the technical feasibility of performing laparoscopy-assisted endoscopic ultrasound (EUS) is unknown. In this report, we describe the technique for performing laparoscopy-assisted EUS in two patients with RY gastric bypass anatomy who presented with obstructive jaundice, abnormal liver function tests, and dilated biliary tree. While the examination was normal in one patient, EUS-guided fine needle aspiration of pancreatic head mass revealed adenocarcinoma in the other. Laparoscopic assisted EUS examination including FNA is feasible in Roux-en-Y surgical anatomy.

  16. Intraoperative verification of hysterosalpingography and laparoscopy in cases of oviductal infertility

    International Nuclear Information System (INIS)

    Cislo, M.; Murawski, M.; Popiela, A.

    1993-01-01

    There has been made an analysis of 45 cases of women's oviductal infertility qualified to surgical treatment. In search of these reasons of infertility these patients underwent hysterosalpingographic examination and 24 of them additionally, diagnostic laparoscopy with chromoturbation. Positive intraoperative verification of HSG and laparoscopy, as a confirmation of tubal obstruction, they obtained at 40 women (88.9%) that made possible to carry out microsurgical operations in them. Such a big percentage of correct diagnoses make sure, that both HSG and laparoscopy are indispensable for proper qualification of a patient to microsurgical treatment of oviductal infertility. (author)

  17. Baryon interactions in lattice QCD: the direct method vs. the HAL QCD potential method

    Science.gov (United States)

    Iritani, T.; HAL QCD Collaboration

    We make a detailed comparison between the direct method and the HAL QCD potential method for the baryon-baryon interactions, taking the $\\Xi\\Xi$ system at $m_\\pi= 0.51$ GeV in 2+1 flavor QCD and using both smeared and wall quark sources. The energy shift $\\Delta E_\\mathrm{eff}(t)$ in the direct method shows the strong dependence on the choice of quark source operators, which means that the results with either (or both) source are false. The time-dependent HAL QCD method, on the other hand, gives the quark source independent $\\Xi\\Xi$ potential, thanks to the derivative expansion of the potential, which absorbs the source dependence to the next leading order correction. The HAL QCD potential predicts the absence of the bound state in the $\\Xi\\Xi$($^1$S$_0$) channel at $m_\\pi= 0.51$ GeV, which is also confirmed by the volume dependence of finite volume energy from the potential. We also demonstrate that the origin of the fake plateau in the effective energy shift $\\Delta E_\\mathrm{eff}(t)$ at $t \\sim 1$ fm can be clarified by a few low-lying eigenfunctions and eigenvalues on the finite volume derived from the HAL QCD potential, which implies that the ground state saturation of $\\Xi\\Xi$($^1$S$_0$) requires $t \\sim 10$ fm in the direct method for the smeared source on $(4.3 \\ \\mathrm{fm})^3$ lattice, while the HAL QCD method does not suffer from such a problem.

  18. Re-laparoscopy in the diagnosis and treatment of postoperative complications following laparoscopic colorectal surgery.

    LENUS (Irish Health Repository)

    O'Riordan, J M

    2013-08-01

    Laparoscopic colorectal surgery has increasingly become the standard of care in the management of both benign and malignant colorectal disease. We herein describe our experience with laparoscopy in the management of complications following laparoscopic colorectal surgery.

  19. Role of diagnostic laparoscopy in chronic abdominal conditions with uncertain diagnosis

    Directory of Open Access Journals (Sweden)

    Amandeep S Nar

    2014-01-01

    Full Text Available Introduction: Laparoscopy has proved to be an important tool in the minimally invasive exploration of selected patients with chronic abdominal disorders, whose diagnosis remains uncertain, despite exploring the requisite laboratory and imaging investigations like ultrasonography, computed tomography (CT scan, and the like. Materials and Methods: Diagnostic Laparoscopy was conducted on 120 patients, admitted to the Departments of Surgery and Gynecology, Dayanand Medical College and Hospital, Ludhiana, with an uncertain diagnosis after four weeks of onset of symptoms. Conclusion: With laparoscopy providing tissue diagnosis, and helping to achieve the final diagnosis without any significant complication and less operative time, it can be safely concluded that diagnostic laparoscopy is a safe, quick, and effective adjunct to non-surgical diagnostic modalities, for establishing a conclusive diagnosis, but whether it will replace imaging studies as a primary modality for diagnosis needs more evidence.

  20. THE ROLE OF LAPAROSCOPY IN BLUNT ABDOMINAL TRAUMA: DIAGNOSTIC, THERAPEUTIC OR BOTH?

    Science.gov (United States)

    Mosai, F

    2017-09-01

    The use of laparoscopy in blunt abdominal trauma is gaining popularity as a useful diagnostic tool to avoid unnecessary laparotomies where there is diagnostic dilemma. But the feasibility of using laparoscopy for therapeutic intervention in these patients has been debated. Even though recent case reports seem to suggest that these patients can be managed using laparoscopy, the practice is not yet wildly adopted. A retrospective analysis of a prospectively collected data was done. All adult patients who presented with abdominal trauma and were offered laparoscopic surgery at DGMAH from 2012 to 2015 were reviewed. Data was retrieved from our departmental database and analysed using descriptive statistics. A total of 318 patients were reviewed and 35 patients had blunt abdominal trauma and were included in the study. All the patients were offered laparoscopy. The median age was 30, with 91% of our patients being males. The highest injury severity score calculated was 38. At least 77% of the patients were managed using laparoscopy. This includes 43% who had both diagnostic and therapeutic intervention and 34% had only diagnostic laparoscopy. Eight patients were converted to open surgery mainly due to active bleeding and complex injuries. We did not have any non-therapeutic laparotomies, with no documented procedure related morbidity and mortality. The positive outcomes seen from the study suggest that laparoscopy can be safe and feasible in both diagnostic and therapeutic interventions in carefully selected blunt abdominal trauma patients. A conversion to open surgery should not be regarded as a failure but rather as a sign of mature and sound clinical judgement acknowledging the limitations of laparoscopy and/or the surgeon.

  1. Implementation of a Cross-specialty Training Program in Basic Laparoscopy

    DEFF Research Database (Denmark)

    Bjerrum, Flemming; Sorensen, Jette Led; Thinggaard, Jette

    2015-01-01

    BACKGROUND AND OBJECTIVES: Several surgical specialties use laparoscopy and share many of the same techniques and challenges, such as entry approaches, equipment, and complications. However, most basic training programs focus on a single specialty. The objective of this study was to describe the ...... laparoscopy is feasible. There are several logistic benefits of using a cross-specialty approach; however, it is important that local departments include specialty-specific components, together with clinical departmental follow-up....

  2. Comparison of hysterosalpingography and laparoscopy in the evaluation of infertile women

    International Nuclear Information System (INIS)

    Sakar, Mehmet N.; Atay, Ahmet E.; Gul, T.; Celik, Y.

    2008-01-01

    Objective was to compare tuboperitoneal factors of infertile women hysterosalpingography (HSG) and laparoscopy. In this cohort study, 82 infertile cases were evaluated retrospectively by laparoscopy, 3 months subsequent to HSG in the Department of Gynecology and Obstetrics, Medical School of Dicle University, Diyarbakir, Turkey between March 2004 and April 2006. The findings of HSG and laparoscopy were compared. Out of 82 infertile women, pathological findings were observed in 45.1% by HSG and 54.9% had no pathological findings. On laparoscopic evaluation, however, pathological findings were observed in 65.85% and 34.15% had no pathological findings. The pathological findings were detected by laparoscopy in 20 of the 45(44.4%) patients who had had no pathological findings by HSG and no pathological findings were detected by laparoscopy in 3 of the 37 (8.1%) patients who had pathological findings by HSG. Laparoscopy revealed no pathological findings in 6 of 35 patients who had tubal pathology by HSG. The sensitivity of HSG was 63%, specificity was 89.3% and positive predictive value was 92% with a 55% predictive value and the accuracy ratio was 72%. Laparoscopy is a superior method for the result of tubal and pelvic pathologies in the evaluation of infertility. However, HSG is a more economical and elementary method suitable for evaluation of endometrial and tubal pathologies and laparoscopy is an appropriate method for examining the external part of tubae, fimbriae, the relation of tuba and ovary, endometriosis, adhesions, tuberculosis and other pathologies. Therefore, these 2 methods are not alternative but complementary. (author)

  3. Analisis Strategi Pemasaran Produk Laparoscopy di Rumah Sakit PKU Muhammadiyah YOGYAKARTA

    OpenAIRE

    Mudayana, Ahmad Ahid

    2010-01-01

    Background : Complexity of hospital marketing strategy that have social function needed research to analyses marketing strategy have been applied by PKU Muhammadiyah Yogyakarta hospital, especially to promote Laparoscopy Product. Marketing strategy of the segmentation, targeting and positioning. The aim of the research to analyses marketing strategy of PKU Muhammadiyah Yogyakarta to promote Laparoscopy product.Method : This was descriptive research using qualitative method. The subject was di...

  4. Occult microscopic endometriosis: undetectable by laparoscopy in normal peritoneum.

    Science.gov (United States)

    Khan, Khaleque Newaz; Fujishita, Akira; Kitajima, Michio; Hiraki, Koichi; Nakashima, Masahiro; Masuzaki, Hideaki

    2014-03-01

    Is there any occurrence of hidden (occult) endometriotic lesions in normal peritoneum of women with and without visible endometriosis? We detected a slightly higher occurrence of occult microscopic endometriosis (OME) in normal peritoneum of women with visible endometriosis than in control women. Based on a small number of cases, the concept of invisible microscopic endometriosis in visually normal peritoneum has been reported for more than a decade but there is controversy regarding their tissue activity and clinical significance. This case-controlled research study was conducted with prospectively collected normal peritoneal samples from 151 women with and 62 women without visible endometriosis. Normal peritoneal biopsy specimens from different pelvic sites of were collected during laparoscopy. A histological search of all peritoneal biopsy specimens for the detection of invisible endometriosis was done by immunoreaction to Ber-EP4 (epithelial cell marker), CD10 (stromal cell marker) and Calretinin (mesothelial cell marker). Tissue expression of estrogen/progesterone receptors (ER/PR) and cell proliferation marker, Ki-67, was performed by immunohistochemistry to identify tissue activity. Three different patterns of OME were detected based on (I) the presence of typical gland/stroma, (II) reactive hyperplastic change of endometrioid epithelial cells with surrounding stroma and (III) single-layered epithelium-lined cystic lesions with surrounding stroma. A higher tendency toward the occurrence of OME was found in women with visible endometriosis (15.2%, 23/151) compared with control women (6.4%, 4/62) (P = 0.06, χ(2) test). The epithelial cells and/or stromal cells of OME lesions were immunoreactive to Ber-EP4 and CD10 but not reactive to Calretinin. ER and PR expression was observed in all patterns of OME lesions. Ki-67 index was significantly higher in pattern I/II OME lesions than in pattern III OME lesions (Pendometriosis due to the presence of adhesions in

  5. THE ROLE OF LAPAROSCOPY IN DISCOVERING THE CAUSES OF CHRONIC PELVIC PAIN

    Directory of Open Access Journals (Sweden)

    Jadranka Domazet Fink

    2003-12-01

    Full Text Available Background. The aim of this study was to assess the share of organic changes in patients with chronic pelvic pain (CPP as well as evaluate the need for invasive CPP diagnostics – laparoscopy.Methods. The data for the analysis were gathered retrospectively from the descriptions of 287 CPP patients who were treated at the Clinic of Gynaecology in Ljubljana from 1993 to 1999. In this analysis the share of laparoscopically established organic causes of CPP was assessed and the findings of invasive (laparoscopy and non-invasive diagnostics (clinical status and ultrasound were compared.Results. Out of 287 patients, 272 underwent laparoscopy, 7 underwent laparotomy while 8 were only observed. As regards organic CPP causes, an organic cause was established in 70.7% patients through laparoscopy. The most frequently observed phenomena were adhesions, namely in 97 (35.7% patients, endometriosis in 68 (25.0% and pelvic varices in 29 (10% patients.By comparing the results of invasive and non-invasive diagnostics it was established that up to three times more organic changes – a possible cause of CPP – can be discovered through laparoscopy than through the use of non-invasive diagnostics methods.Conclusions. Laparoscopy is considered to be the most reliable method of diagnostics and detection of organic causes of CPP. An adequate psychological treatment within a multidisciplinary approach is necessary in patients in whom an organic cause of CPP can not be discovered in their genital tract.

  6. Mineralogy and petrography of HAL, an isotopically-unusual Allende inclusion

    Science.gov (United States)

    Allen, J. M.; Grossman, L.; Lee, T.; Wasserburg, G. J.

    1980-01-01

    Results of a detailed mineralogical and textural study of the HAL (Hibonite ALlende) inclusion of the Allende meteorite, which has been found to exhibit no Mg-26 excesses despite very high Al-27/Mg-24 ratios and large fractionation effects with small nuclear effects in its Ca, are reported. The inclusion is found to consist of three up to 1-mm diameter hibonite crystals partially surrounded by a black rim resembling a devitrified glass and containing an anisotropic Al-Fe oxide, which is in turn surrounded by a 2-mm thick friable rim sequence consisting of five layers distinguishable by mineral composition. From the available evidence, it is concluded that each of the layers of the friable rim formed by the accretion of an assemblage of condensate grains rather than by the complete reaction of a HAL precursor with a nebular gas, thus explaining its unusual isotopic characteristics and supporting the conclusion that the solar nebular contained isotopically-distinct reservoirs.

  7. [Operative laparoscopy in the management of perforated peptic ulcer].

    Science.gov (United States)

    Schirru, Angelo; Cavaliere, Davide; Caristo, Ilario; Bianchi, Massimo; Cosce, Umberto; Mariani, Federica; Scarimbolo, Monica; Cavaliere, Paolo

    2004-01-01

    The aim of this retrospective study was to assess the feasibility, safety and efficacy of the laparoscopic approach in the management of perforated peptic ulcers. From January 1997 to December 2002, all patients referred to our community hospital for abdominal surgical emergencies were routinely managed by laparoscopic surgery. A review was carried out on 39 consecutive patients suffering from perforated peptic ulcers with or without generalised peritonitis. The study population comprised 24 male and 15 female patients, aged 30 to 94 years (mean age: 62 +/- 18). Laparoscopic repair was attempted in all patients. Laparoscopy afforded the correct diagnosis in all cases. Laparoscopic peritoneal washout (irrigation and suction of the entire abdominal cavity) with simple suture of the perforation proved successful in 34 patients. An additional omental patching was performed in 15 of these cases. Conversion to conventional open surgery was necessary in 5 patients. The morbidity and mortality rates were 13% and 10%, respectively. The mean operative time was 77 minutes (range: 40-120) and the mean hospital stay 9 days (range: 3-22). Laparoscopic repair of perforated ulcers is technically feasible but requires sound experience in laparoscopic abdominal emergencies. This study shows that the mini-invasive procedure is safe and effective, offering a valid alternative to traditional laparotomy.

  8. Laparoscopy in the management of pediatric vesicoureteral reflux

    Directory of Open Access Journals (Sweden)

    Atul A Thakre

    2007-01-01

    Full Text Available The prevalence of vesicoureteral reflux (VUR has been estimated as. 4 to 1.8% among the pediatric population. In children with urinary tract infection the prevalence is typically from 30-50% with higher incidence occurring in infancy. When correction of VUR is determined to be necessary, traditionally open ureteral reimplantation by a variety of techniques has been the mainstay of treatment. This approach is justified because surgical correction affords a very high success rate of 99% in experienced hands and a low complication rate. In that context the purpose of this review article is to highlight the use of laparoscopy and robot-assisted techniques to perform ureteric reimplantation for the management of pediatric VUR. A detailed review of recent literature on the subject is performed to find out various aspects of minimally invasive surgery in the treatment of VUR, highlighting evolution of management approaches, operative steps, complications, results and the current status in clinical practice. We also share our experience on the subject.

  9. "Spaghetti Maneuver": A useful tool in pediatric laparoscopy - Our experience

    Directory of Open Access Journals (Sweden)

    Antonio Marte

    2011-01-01

    Full Text Available Aims: The laparoscopic "Spaghetti Maneuver" consists in holding an organ by its extremity with a grasper and rolling it up around the tool to keep the organ stable and facilitate its traction within a small space. We describe our experience with the "Spaghetti Maneuver" in some minimally invasive procedures. Materials and Methods: We successfully adopted this technique in 13 patients (5F : 8M aged between 6 and 14 years (average age, 10 on whom we performed 7 appendectomies, 2 ureteral reimplantation and 4 cholecystectomies. In all cases, after the first steps, the appendix, the gallbladder and the ureter were rolled around the grasper and easily isolated; hemostasis was thus induced and the organ was mobilized until removal during cholecystectomy and appendectomy, and before the reimplantation in case of ureteral reimplantation. Results: We found that this technique facilitated significantly the acts of holding, isolating and removing, when necessary, the structures involved, which remained constantly within the visual field of the operator. This allowed a very ergonomic work setting, overcoming the problem of the "blind" zone, which represents a dangerous and invisible area out of the operator′s control during laparoscopy. Moreover the isolation maneuvers resulted easier and reduced operating time. Conclusion: We think that this technique is easy to perform and very useful, because it facilitates the dissection of these organs, by harmonizing and stabilizing the force of traction exercised.

  10. Improving the safety of room air pneumoperitoneum for diagnostic laparoscopy.

    Science.gov (United States)

    Ikechebelu, J I; Okeke, C A F

    2008-06-01

    Laparoscopic examination is a useful investigation in the evaluation of infertile women. To perform this test, pneumoperitoneum is required to distend the abdomen, improve visibility and displace the intestines out of the pelvis. Several gases have been used to achieve this purpose including Nitrous Oxide (N2O), Carbondioxide (CO2), Helium, Xenon andAir. This was a prospective study in a private fertility centre in Nnewi, Nigeria aimed at reducing the morbidities inherent in the use Room Air pneumoperitoneum for diagnostic laparoscopy. This was sequel to an earlier study, which revealed that women who had Room Air pneumoperitoneum had a higher port wound infection rate, abdominal discomfort (feeling of retained gas in the abdomen) and shoulder pain with resultant delayed return to normal activity than women who had Co2 pneumoperitoneum. This study demonstrated that the use of soda lime to purify the Room Air and a low pressure suction pump to evacuate the air after the procedure significantly reduced the wound infection rate and virtually eliminated the abdominal discomfort and shoulder pain associated with Room Air pneumoperitoneum. This was followed by early return to normal activity. Therefore, use of Room Air for pneumoperitoneum is safe and affordable. It is recommended for low resource settings.

  11. Lasagna-type arrays with halide-nitromethane cluster filling. The first recognition of the Hal(-)···HCH2NO2 (Hal = Cl, Br, I) hydrogen bonding.

    Science.gov (United States)

    Gushchin, Pavel V; Kuznetsov, Maxim L; Wang, Qian; Karasik, Andrey A; Haukka, Matti; Starova, Galina L; Kukushkin, Vadim Yu

    2012-06-21

    The previously predicted ability of the methyl group of nitromethane to form hydrogen bonding with halides is now confirmed experimentally based on X-ray data of novel nitromethane solvates followed by theoretical ab initio calculations at the MP2 level of theory. The cationic (1,3,5-triazapentadiene)Pt(II) complexes [Pt{HN=C(NC(5)H(10))N(Ph)C(NH(2))=NPh}(2)](Cl)(2), [1](Hal)(2) (Hal = Cl, Br, I), and [Pt{HN=C(NC(4)H(8)O)N(Ph)C(NH(2))=NPh}(2)](Cl)(2), [2](Cl)(2), were crystallized from MeNO(2)-containing systems providing nitromethane solvates studied by X-ray diffraction. In the crystal structure of [1][(Hal)(2)(MeNO(2))(2)] (Hal = Cl, Br, I) and [2][(Cl)(2)(MeNO(2))(2)], the solvated MeNO(2) molecules occupy vacant spaces between lasagna-type layers and connect to the Hal(-) ion through a weak hydrogen bridge via the H atom of the methyl thus forming, by means of the Hal(-)···HCH(2)NO(2) contact, the halide-nitromethane cluster "filling". The quantum-chemical calculations demonstrated that the short distance between the Hal(-) anion and the hydrogen atom of nitromethane in clusters [1][(Hal)(2)(MeNO(2))(2)] and [2][(Cl)(2)(MeNO(2))(2)] is not just a consequence of the packing effect but a result of the moderately strong hydrogen bonding.

  12. Extension of the HAL QCD approach to inelastic and multi-particle scatterings in lattice QCD

    Science.gov (United States)

    Aoki, S.

    We extend the HAL QCD approach, with which potentials between two hadrons can be obtained in QCD at energy below inelastic thresholds, to inelastic and multi-particle scatterings. We first derive asymptotic behaviors of the Nambu-Bethe-Salpeter (NBS) wave function at large space separations for systems with more than 2 particles, in terms of the one-shell $T$-matrix consrainted by the unitarity of quantum field theories. We show that its asymptotic behavior contains phase shifts and mixing angles of $n$ particle scatterings. This property is one of the essential ingredients of the HAL QCD scheme to define "potential" from the NBS wave function in quantum field theories such as QCD. We next construct energy independent but non-local potentials above inelastic thresholds, in terms of these NBS wave functions. We demonstrate an existence of energy-independent coupled channel potentials with a non-relativistic approximation, where momenta of all particles are small compared with their own masses. Combining these two results, we can employ the HAL QCD approach also to investigate inelastic and multi-particle scatterings.

  13. The Impact of Blue Light Cystoscopy with Hexaminolevulinate (HAL) on Progression of Bladder Cancer - A New Analysis.

    Science.gov (United States)

    Kamat, Ashish M; Cookson, Michael; Witjes, J Alfred; Stenzl, Arnulf; Grossman, H Barton

    2016-04-27

    Background: The International Bladder Cancer Group (IBCG) recently proposed a new definition of disease progression in non-muscle invasive bladder cancer (NMIBC), including change in T-stage, change to T2 or higher or change from low to high grade. Objective: To establish whether blue light cystoscopy with hexaminolevulinate (HAL) impacts the rate of progression and time to progression using the revised definition. Methods: An earlier long-term follow-up of a controlled Phase III study reported outcomes following blue light cystoscopy with HAL (255 patients) or white light (WL) cystoscopy (261 patients) in NMIBC patients. The data was re-analysed according to the new definition. Results: In the original analysis, after 4.5 years (median), eight HAL and 16 WL patients were deemed to have progressed (transition from NMIBC to muscle invasive bladder cancer, (T2-4)). According to the new definition, additional patients in both groups were found to have progressed: 31 (12.2%) HAL vs 46 (17.6%) WL ( p  = 0.085) with four (1.6%) HAL and 11 (4.2%) WL patients progressing from Ta to CIS. Time to progression was longer in the HAL group ( p  = 0.05). Conclusions: Applying the new IBCG definition there was a trend towards a lower rate of progression in HAL patients, particularly in those progressing from Ta to CIS. Time to progression was significantly prolonged. This suggests that patients should receive blue light cystoscopy with HAL rather than WL at resection. Adoption of the new definition could allow more patients at risk of progression to be treated appropriately earlier.

  14. Rectosigmoid endometriosis: comparison between CT water enema and video laparoscopy.

    Science.gov (United States)

    Stabile Ianora, A A; Moschetta, M; Lorusso, F; Lattarulo, S; Telegrafo, M; Rella, L; Scardapane, A

    2013-09-01

    To evaluate the accuracy of water enema computed tomography (CT) for predicting the location of endometriosis in patients with contraindications to magnetic resonance imaging (MRI), focusing on rectosigmoid lesions and having laparoscopic and histological data as the reference standard. Thirty-three women (mean age 33.4 ± 3.1 years) suspected of having deep pelvic endometriosis underwent 64-row CT and video laparoscopy within 4 weeks. Two radiologists blinded to the clinical data evaluated the CT images obtained after colonic retrograde distension using water as the contrast medium, and a comparison with laparoscopic and histological findings was performed. CT sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and diagnostic accuracy were calculated. The radiation dose to patients was estimated. Cohen's weighted kappa (κ) test was used to evaluate the interobserver agreement. In 23 out of 33 patients (69%) intestinal implants were found at surgery and pathological examinations. CT confirmed the diagnosis of rectosigmoid endometriosis in 20 out of 23 implants. Three nodules located on the proximal sigmoid colon (two serosal lesions and one infiltrating the muscularis layer) with a diameter of less than 1 cm were not diagnosed. CT sensitivity, specificity, PPV, NPV, and accuracy values were 87, 100, 100, 77, and 91%, respectively. The mean effective dose estimate was 6.30 ± 1.7 mSv. Almost perfect agreement between the two readers was found (k = 0.84). Water enema CT can play a role in the diagnosis of bowel endometriosis and represents another accurate potential tool for video laparoscopic approaches, especially in patients for whom MRI is contraindicated. Copyright © 2013 The Royal College of Radiologists. Published by Elsevier Ltd. All rights reserved.

  15. Rectosigmoid endometriosis: Comparison between CT water enema and video laparoscopy

    International Nuclear Information System (INIS)

    Stabile Ianora, A.A.; Moschetta, M.; Lorusso, F.; Lattarulo, S.; Telegrafo, M.; Rella, L.; Scardapane, A.

    2013-01-01

    Aim: To evaluate the accuracy of water enema computed tomography (CT) for predicting the location of endometriosis in patients with contraindications to magnetic resonance imaging (MRI), focusing on rectosigmoid lesions and having laparoscopic and histological data as the reference standard. Materials and methods: Thirty-three women (mean age 33.4 ± 3.1 years) suspected of having deep pelvic endometriosis underwent 64-row CT and video laparoscopy within 4 weeks. Two radiologists blinded to the clinical data evaluated the CT images obtained after colonic retrograde distension using water as the contrast medium, and a comparison with laparoscopic and histological findings was performed. CT sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and diagnostic accuracy were calculated. The radiation dose to patients was estimated. Cohen's weighted kappa (κ) test was used to evaluate the interobserver agreement. Results: In 23 out of 33 patients (69%) intestinal implants were found at surgery and pathological examinations. CT confirmed the diagnosis of rectosigmoid endometriosis in 20 out of 23 implants. Three nodules located on the proximal sigmoid colon (two serosal lesions and one infiltrating the muscularis layer) with a diameter of less than 1 cm were not diagnosed. CT sensitivity, specificity, PPV, NPV, and accuracy values were 87, 100, 100, 77, and 91%, respectively. The mean effective dose estimate was 6.30 ± 1.7 mSv. Almost perfect agreement between the two readers was found (k = 0.84). Conclusion: Water enema CT can play a role in the diagnosis of bowel endometriosis and represents another accurate potential tool for video laparoscopic approaches, especially in patients for whom MRI is contraindicated

  16. Efficacy of virtual computerized tomography laparoscopy for retroperitoneoscopic nephrectomy

    International Nuclear Information System (INIS)

    Shigeta, Masanobu; Kadonishi, Yuichi; Yasumoto, Hiroaki; Mita, Koji; Usui, Tsuguru; Marukawa, Kazushi

    2004-01-01

    Retroperitoneoscopic nephrectomy is less invasive than open nephrectomy, and is an alternative surgical procedure for renal tumors and upper urothelial tumors. We evaluated the efficacy of virtual computerized tomography laparoscopy (VCTL) as a navigator for retroperitoneoscopic nephrectomy to ascertain the correct anatomy of the renal hilum pre-operatively under the retroperitoneoscopic view. Seventy-three kidneys with localized renal tumors (n=44), upper urothelial tumors (n=23), or benign renal disease (n=6) underwent multidetector-row CT. VCTL was carried out by the volume-rendered technique. The findings were compared with those of real retroperitoneoscopy. After the operation, each operator scored 1 to 5 in evaluating the usefulness of virtual retroperitoneoscopy (score 5 indicated very useful). The percentages of renal arteries depicted by VCTL compared with those noted during real surgery were 93% for kidneys with renal tumors, 100% for upper urothelial tumors and 83% for benign renal disease. Two renal arteries of 2 kidneys were not detected by virtual imaging. These were about 1 mm in diameter and directly branched from the aorta, however retroperitoneoscopic nephrectomy was performed uneventfully. VCTL depicted all the renal veins. The anatomy of the renal hilum seen on VCTL and real retroperitoneoscopy was identical, without the minor angle deviation caused by drawing the kidney during the operation. The average score for the usefulness of VCTL was 4.1, ranging from 3 to 5. The accurate surgical anatomy of the renal hilum could be predicted in almost all patients pre-operatively. VCTL is an excellent navigator for retroperitoneoscopic nephrectomy. (author)

  17. LEARNING CURVES OF LAPAROSCOPY – BARRIERS TO ADOPTION: A MNJIO EXPERIENCE!

    Directory of Open Access Journals (Sweden)

    Ramesh Maturi

    2016-06-01

    Full Text Available BACKGROUND Laparoscopy has been a new entry in the field of surgery with an active history of around just two decades. Today, it is in a position to challenge the conventional surgery which is in use since ages. It is making rapid inroads into various disciplines of surgery. Rapid improvements in optics, along with improvements in energy devices and mechanical stapling devices gave a fillip to acceptance of laparoscopy by the majority of surgeons. Also accumulating data and evidence has started influencing the sceptical, mobilising them to jump into the bandwagon. Barriers to adoption of new techniques, resistance to learning are common to human nature and it is necessary to have a systematic overview of the issues that might crop, so as to be prepared to overcome the problems of accepting laparoscopy into established centres of surgery. AIMS This publication is a reflection of our experience, our trials and tribulations in taking forward the laparoscopy program at our institution. This publication will give an overview of the steps involved in initiation of laparoscopy and aspires to be a source of answers, for day-to-day issues that crop during the process of learning laparoscopy. METHODS AND MATERIALS Just the way, executing laparoscopic surgery is a team effort, incorporating laparoscopy program in an institution is also a team effort where the members of team extend beyond the operating room. Involvement and co-operation of individuals across departments is a must along with benevolent seniors and a proactive administration. So we collated data by interviewing all the stakeholders of laparoscopy program, analysed observations of the faculty from the operating room and reviewed literature on the world wide web. Opinions of the administrators about their perceptions and the issues faced by the junior staff of the department were taken into consideration. Patients were interviewed before and after laparoscopic surgery. CONCLUSIONS Success at

  18. Costs of Robotic-Assisted Versus Traditional Laparoscopy in Endometrial Cancer.

    Science.gov (United States)

    Vuorinen, Riikka-Liisa K; Mäenpää, Minna M; Nieminen, Kari; Tomás, Eija I; Luukkaala, Tiina H; Auvinen, Anssi; Mäenpää, Johanna U

    2017-10-01

    The purpose of this study was to compare the costs of traditional laparoscopy and robotic-assisted laparoscopy in the treatment of endometrial cancer. A total of 101 patients with endometrial cancer were randomized to the study and operated on starting from 2010 until 2013, at the Department of Obstetrics and Gynecology of Tampere University Hospital, Tampere, Finland. Costs were calculated based on internal accounting, hospital database, and purchase prices and were compared using intention-to-treat analysis. Main outcome measures were item costs and total costs related to the operation, including a 6-month postoperative follow-up. The total costs including late complications were 2160 &OV0556; higher in the robotic group (median for traditional 5823 &OV0556;, vs robot median 7983 &OV0556;, P costs for instruments and equipment as well as to more expensive operating room and postanesthesia care unit time. Traditional laparoscopy involved higher costs for operation personnel, general costs, medication used in the operation, and surgeon, although these costs were not substantial. There was no significant difference in in-patient stay, laboratory, radiology, blood products, or costs related to complications. According to this study, robotic-assisted laparoscopy is 37% more expensive than traditional laparoscopy in the treatment of endometrial cancer. The cost difference is mainly explained by amortization of the robot and its instrumentation.

  19. A prospective audit of the use of diagnostic laparoscopy to establish the diagnosis of abdominal tuberculosis.

    Science.gov (United States)

    Islam, J; Clarke, D; Thomson, S R; Wilson, D; Dawood, H

    2014-06-01

    The incidence of abdominal tuberculosis is much higher in an HIV-positive cohort. The use of laparoscopy in the diagnostic work-up of suspected abdominal tuberculosis is underutilized and its use and efficacy in the context of HIV co-infection has never been examined. A prospective clinical audit of the use of diagnostic laparoscopy was conducted in patients with clinically suspected abdominal tuberculosis but histologically or microbiologically unconfirmed tuberculosis at any site. From January 2008 to June 2010, 81 patients underwent diagnostic laparoscopy; 34 were male and 47 were female, with a mean age of 33 years, and 77 % were HIV-positive. Fifty-five patients (68 %) had positive histology or culture for tuberculosis. In 15 patients (19 %), histology revealed non-specific inflammation, no pathology was found in one patient, and no specimen was taken from one patient. Eighty percent of peritoneal deposits and 77 % of lymph nodes were positive for tuberculosis, whereas 35 % of ascitic fluid cultures were positive. In nine patients (11 %) an alternative diagnosis was found; nine patients (11 %) had conversion to laparotomy. There was no procedure-related death. Nine patients (11 %) died during the 2-month follow-up period. Diagnostic laparoscopy avoids the morbidity and mortality of laparotomy in chronically ill patients, and reduces the rate of misdiagnosis of other abdominal conditions and unnecessary long-term therapy. Diagnostic laparoscopy and tissue sampling is a viable and reliable strategy in patients with suspected abdominal tuberculosis.

  20. Laparoscopy training in surgical education: the utility of incorporating a structured preclinical laparoscopy course into the traditional apprenticeship method.

    Science.gov (United States)

    De Win, Gunter; Van Bruwaene, Siska; Aggarwal, Rajesh; Crea, Nicola; Zhang, Zhewen; De Ridder, Dirk; Miserez, Marc

    2013-01-01

    To investigate whether preclinical laparoscopy training offers a benefit over standard apprenticeship training and apprenticeship training in combination with simulation training. This randomized controlled trial consisted of 3 groups of first-year surgical registrars receiving a different teaching method in laparoscopic surgery. The KU LEUVEN Faculty of Medicine is the largest medical faculty in Belgium. Thirty final-year medical students starting a general surgical career in the next academic year. Thirty final-year medical students were randomized into 3 groups, which differed in the way they were exposed to laparoscopic simulation training but were comparable in regard to ambidexterity, sex, age, and laparoscopic psychomotoric skills. The control group received only clinical training during surgical residentship, whereas the interval group received clinical training in combination with simulation training. The registrars were allowed to do deliberate practice. The Centre for Surgical Technologies Preclinical Training Programme (CST PTP) group received a preclinical simulation course during the final year as medical students, but was not exposed to any extra simulation training during surgical residentship. At the beginning of surgical residentship and 6 months later, all subjects performed a standardized suturing task and a laparoscopic cholecystectomy in a POP Trainer. All procedures were recorded together with time and motion tracking parameters. All videos were scored by a blinded observer using global rating scales. At baseline the 3 groups were comparable. At 6 months, for suturing, the CST PTP group was better than both the other groups with respect to time, checklist, and amount of movements. The interval group was better than the control group on only the time and checklist score. For the cholecystectomy evaluation, there was a statistical difference between the CST PTP study group and both other groups on all evaluation scales in favor of the CST PTP

  1. Diagnostic and therapeutic value of laparoscopy for small bowel blunt injuries: A case report.

    Science.gov (United States)

    Addeo, Pietro; Calabrese, Daniela Paola

    2011-01-01

    Small bowel injuries after blunt abdominal trauma represent both a diagnostic and a therapeutic challenge. Early diagnosis and prompt treatment are necessary in order to avoid a dangerous diagnostic delay. Laparoscopy can represent a diagnostic and therapeutic tool in patients with uncertain clinical symptoms. We report the case of a 25-year-old man, haemodynamically stable, admitted for acute abdominal pain a few hours after a physical assault. Giving the persistence of the abdominal pain and the presence of free fluids at the computed tomography examination, an exploratory laparoscopy was performed. At the laparoscopic exploration, an isolated small bowel perforation was found, 60 cm distal from the ligament of Treitz. The injury was repaired by laparoscopic suturing and the patient was discharged home at postoperative day 3 after an uneventful postoperative course. Laparoscopy represents a valuable tool for patients with small bowel blunt injuries allowing a timely diagnosis and a prompt treatment.

  2. Cesarean scar pregnancy treated by curettage and aspiration guided by laparoscopy

    Directory of Open Access Journals (Sweden)

    Shu S

    2015-08-01

    Full Text Available Shan-rong Shu, Xin Luo, Zhi-xin Wang, Yu-hong Yao Department of Obstetrics and Gynecology, The First Affiliated Hospital of JiNan University, HuangPu Road West, Guangzhou, People’s Republic of China Abstract: Pregnancy in a cesarean scar is the rarest form of an ectopic pregnancy. The treatment for cesarean scar pregnancy mainly includes systemic methotrexate and uterine artery embolization. Here, we reported a case of cesarean scar pregnancy treated by curettage and aspiration guided by laparoscopy. The treatment plan included two phases. Three days after a combination of methotrexate and mifepristone was administered, the gestational sac was removed under laparoscopy, which enabled a successful treatment for the unruptured ectopic pregnancy in a previous cesarean scar and made it possible to preserve the reproductive capability of the patient. Keywords: cesarean scar pregnancy, laparoscopy, curettage and aspiration 

  3. Photodynamic therapy of bladder cancer - a phase I study using hexaminolevulinate (HAL).

    Science.gov (United States)

    Bader, M J; Stepp, Herbert; Beyer, Wolfgang; Pongratz, Thomas; Sroka, Ronald; Kriegmair, Martin; Zaak, Dirk; Welschof, Mona; Tilki, Derya; Stief, Christian G; Waidelich, Raphaela

    2013-10-01

    To assess the safety and feasibility of hexaminolevulinate (HAL) based photodynamic therapy (PDT) as adjuvant treatment after transurethral resection of the bladder (TURB) in patients with intermediate or high-risk urothelial cell carcinoma (UCC) of the bladder. Seventeen patients received 50 ml of either a 16 mM (4 patients) or 8 mM HAL (13 patients) solution instilled intravesically. Bladder wall irradiation was performed using an incoherent white light source coupled via a quartz fiber assembled into a flexible transurethral irrigation catheter. Each patient received 3 treatments with HAL-PDT 6 weeks apart. After PDT, patients were followed by regular cystoscopy for up to 21 months to assess time to recurrence. Reported adverse events (AEs) were coded according the World Health Organization Adverse Reaction Terminology (WHO-ART). Efficacy was assessed by cystoscopy, cytology, and histology, and was defined as the number of patients who were tumor-free at 6 or 21 months after initial PDT treatment. Transient bladder irritability was reported by 15 of the 17 patients and resolved completely in all patients. No evidence of a cumulative effect of treatment on the incidence of AEs could be detected. PDT treatment was performed without any technical complications. Furthermore preliminary assessment of efficacy showed that of the 17 patients included, 9 (52.9%; 95% CI: 27.8-77.0) were tumor-free at 6 months, 4 (23.5%; 95% CI: 6.8-49.9) were tumor-free at 9 months, and 2 (11.8%, 95% CI: 1.5-36.4) were tumor-free after 21 months. PDT using hexaminolevulinate and an incoherent white light system with the special flexible irradiation catheter system is technically feasible and safe and may offer an alternative in the treatment of non-muscle-invasive intermediate and high-risk bladder cancer. Copyright © 2013 Elsevier Inc. All rights reserved.

  4. Tissue Engineering in der Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie

    Science.gov (United States)

    Bücheler, Markus; Bootz, Friedrich

    Tissue Engineering ist eine Schlüsseltechnologie für den Gewebeersatz der Zukunft. Am Beispiel der Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie werden klinisch etablierte Gewebeersatzmethoden und aktuelle Entwicklungen des Tissue Engineering gegenübergestellt. Die Besonderheiten der zu ersetzenden Gewebe im Kopf- und Halsbereich erfordert vielfältige Ersatzverfahren. Im klinischen Alltag werden heute vor allem autogene Transplantate und Implantate für den Gewebeersatz verwendet [1]. In vitro hergestellte Gewebe werden abgesehen von Einzelanwendungen zur Zeit noch nicht am Patienten eingesetzt.

  5. Charmonium-nucleon interactions from the time-dependent HAL QCD method

    Science.gov (United States)

    Sugiura, Takuya; Ikeda, Yoichi; Ishii, Noriyoshi

    2018-03-01

    The charmonium-nucleon effective central interactions have been computed by the time-dependent HAL QCD method. This gives an updated result of a previous study based on the time-independent method, which is now known to be problematic because of the difficulty in achieving the ground-state saturation. We discuss that the result is consistent with the heavy quark symmetry. No bound state is observed from the analysis of the scattering phase shift; however, this shall lead to a future search of the hidden-charm pentaquarks by considering channel-coupling effects.

  6. ROLE OF DIAGNOSTIC LAPAROSCOPY IN EVALUATION AND TREATMENT OF CHRONIC ABDOMINAL PAIN IN CHILDREN.

    Science.gov (United States)

    Talat, Nabila; Afzal, Muhammad; Ahmad, Sarfraz; Rasool, Naima; Wasti, Arsalan Raza; Saleem, Muhammad

    2016-01-01

    Chronic abdominal Pain in children is a very common cause of hospital admission. Many of them are discharged without a diagnosis even after battery of investigations. Laparoscopy plays a significant role in diagnosis and management of many causes of acute and chronic abdominal pain. The purpose of this study was to determine the efficacy of laparoscopy as an efficient diagnostic and management tool in children with chronic abdominal pain. A descriptive, prospective case series was collected in the department of Paediatric surgery Mayo's Hospital Lahore, over the period of 5 years between Jan 2007-Dec 2013. The data of consecutive 50 patients, who were admitted in the department with the diagnosis of chronic abdominal pain, was recorded. All patients who had 2-3 admissions in hospital for last 2 months and failed to establish a definitive diagnosis after clinical examination and base line investigations underwent laparoscopy. The details of associated symptoms, finding of laparoscopy, laparoscopic procedures done, definitive diagnosis, histopathology, complications and relief of symptoms were collected and analysed and results were evaluated using SPSS-17. Out of 50 patients studies, 27/50 (54%) were male, 23/50 (46%) were female. Age ranged from 2-12 years, with the mean age of 7.24 year. Tuberculosis abdomen, adhesions, mesenteric lymphadenitis, appendicitis and cholecystitis were the final diagnosis. Five abdomens were found normal on laparoscopy. Complete pain relief was achieved in 30/50 (60%), reduced intensity of pain was gained in 12/50 (24%) cases while 16% (8/50) still complained of pain. Laparoscopy is an efficient diagnostic and treatment tool in children with chronic unexplained abdominal pain. It avoids serial examinations; prolong admission, battery of investigations and unnecessary surgeries.

  7. Diagnostic usefulness of laparoscopy versus exploratory laparotomy for dogs with suspected gastrointestinal obstruction.

    Science.gov (United States)

    Barry, Katie S; Case, J Brad; Winter, Matthew D; Garcia-Pereira, Fernando L; Buckley, Gareth; Johnson, Matthew D

    2017-08-01

    OBJECTIVE To evaluate the feasibility of laparoscopy versus exploratory laparotomy for the diagnosis of specific lesions in dogs with suspected gastrointestinal obstruction. DESIGN Controlled trial. ANIMALS 16 client-owned dogs with physical and radiographic findings consistent with gastrointestinal obstruction. PROCEDURES Single-incision laparoscopy with intracorporeal and extracorporeal examination of the gastrointestinal tract was performed by 1 surgeon. Immediately afterward, exploratory laparotomy was performed by a second surgeon. Accessibility and gross appearance of organs, surgical diagnoses, incision lengths, procedure duration, and complications were compared between diagnostic techniques. RESULTS Mean (95% confidence interval) incision length was 4.9 cm (3.9 to 5.9 cm) for laparoscopy and 16.4 cm (14.0 to 18.7 cm) for exploratory laparotomy. Mean (95% confidence interval) procedure duration was 36.8 minutes (31.6 to 41.2 minutes) and 12.8 minutes (11.4 to 14.3 minutes), respectively. Diagnoses of the cause of obstruction were the same with both methods. In 13 dogs, the laparoscopic examination was successfully completed, and in the other 3, it was incomplete. In 4 dogs in which laparoscopy was successful, conversion to exploratory laparotomy or considerable extension of the laparoscopic incision would have been required to allow subsequent surgical treatment of identified lesions. No dogs developed major complications, and minor complication rates were similar between procedures. CONCLUSIONS AND CLINICAL RELEVANCE Laparoscopy was feasible and clinically applicable in dogs with suspected gastrointestinal obstruction. Careful patient selection and liberal criteria for conversion to an open surgical approach are recommended when laparoscopy is considered for the diagnosis of gastrointestinal lesions in dogs.

  8. Laparoscopy is safe among patients with congestive heart failure undergoing general surgery procedures.

    Science.gov (United States)

    Speicher, Paul J; Ganapathi, Asvin M; Englum, Brian R; Vaslef, Steven N

    2014-08-01

    Over the past 2 decades, laparoscopy has been established as a superior technique in many general surgery procedures. Few studies, however, have examined the impact of the use of a laparoscopic approach in patients with symptomatic congestive heart failure (CHF). Because pneumoperitoneum has known effects on cardiopulmonary physiology, patients with CHF may be at increased risk. This study examines current trends in approaches to patients with CHF and effects on perioperative outcomes. The 2005-2011 National Surgical Quality Improvement Program Participant User File was used to identify patients who underwent the following general surgery procedures: Appendectomy, segmental colectomy, small bowel resection, ventral hernia repair, and splenectomy. Included for analysis were those with newly diagnosed CHF or chronic CHF with new signs or symptoms. Trends of use of laparoscopy were assessed across procedure types. The primary endpoint was 30-day mortality. The independent effect of laparoscopy in CHF was estimated with a multiple logistic regression model. A total of 265,198 patients were included for analysis, of whom 2,219 were identified as having new or recently worsened CHF. Of these patients, there were 1,300 (58.6%) colectomies, 486 (21.9%) small bowel resections, 216 (9.7%) ventral hernia repairs, 141 (6.4%) appendectomies, and 76 (3.4%) splenectomies. Laparoscopy was used less frequently in patients with CHF compared with their non-CHF counterparts, particularly for nonelective procedures. Baseline characteristics were similar for laparoscopy versus open procedures with the notable exception of urgent/emergent case status (36.4% vs 71.3%; P surgery procedures, particularly in urgent/emergent cases. Despite these patterns and apparent preferences, laparoscopy seems to offer a safe alternative in appropriately selected patients. Because morbidity and mortality were considerable regardless of approach, further understanding of appropriate management in this

  9. An unusual case of intra-abdominal testicular torsion: Role of laparoscopy

    Directory of Open Access Journals (Sweden)

    Alfonso Papparella

    2013-01-01

    Full Text Available The authors report a case of intra-abdominal testicular torsion, where laparoscopy has been useful for diagnosis and surgical management. A boy was presented with a left impalpable testis. Laparoscopy revealed a twisted spermatic cord at the inlet pelvis, which ended in a testicular remnant located in the sub-umbilical area. After orchiectomy, the pathologist confirmed testicular atrophy. Diagnosis of intra-abdominal testicular torsion should be considered in patients with impalpable testis and abdominal pain, but could not be excluded in those with no symptoms.

  10. Self-expandable metallic stent placement plus laparoscopy for acute malignant colorectal obstruction.

    Science.gov (United States)

    Zhou, Jia-Min; Yao, Li-Qing; Xu, Jian-Min; Xu, Mei-Dong; Zhou, Ping-Hong; Chen, Wei-Feng; Shi, Qiang; Ren, Zhong; Chen, Tao; Zhong, Yun-Shi

    2013-09-07

    To investigate the clinical advantages of the stent-laparoscopy approach to treat colorectal cancer (CRC) patients with acute colorectal obstruction (ACO). From April 2008 to April 2012, surgery-related parameters, complications, overall survival (OS), and disease-free survival (DFS) of 74 consecutive patients with left-sided CRC presented with ACO who underwent self-expandable metallic stent (SEMS) placement followed by one-stage open (n = 58) or laparoscopic resection (n = 16) were evaluated retrospectively. The stent-laparoscopy group was also compared with a control group of 96 CRC patients who underwent regular laparoscopy without ACO between January 2010 and December 2011 to explore whether SEMS placement influenced the laparoscopic procedure or reduced long-term survival by influencing CRC oncological characteristics. The characteristics of patients among these groups were comparable. The rate of conversion to open surgery was 12.5% in the stent-laparoscopy group. Bowel function recovery and postoperative hospital stay were significantly shorter (3.3 ± 0.9 d vs 4.2 ± 1.5 d and 6.7 ± 1.1 d vs 9.5 ± 6.7 d, P = 0.016 and P = 0.005), and surgical time was significantly longer (152.1 ± 44.4 min vs 127.4 ± 38.4 min, P = 0.045) in the stent-laparoscopy group than in the stent-open group. Surgery-related complications and the rate of admission to the intensive care unit were lower in the stent-laparoscopy group. There were no significant differences in the interval between stenting and surgery, intraoperative blood loss, OS, and DFS between the two stent groups. Compared with those in the stent-laparoscopy group, all surgery-related parameters, complications, OS, and DFS in the control group were comparable. The stent-laparoscopy approach is a feasible, rapid, and minimally invasive option for patients with ACO caused by left-sided CRC and can achieve a favorable long-term prognosis.

  11. Two-baryon systems from HAL QCD method and the mirage in the temporal correlation of the direct method

    Science.gov (United States)

    Iritani, Takumi

    2018-03-01

    Both direct and HAL QCD methods are currently used to study the hadron interactions in lattice QCD. In the direct method, the eigen-energy of two-particle is measured from the temporal correlation. Due to the contamination of excited states, however, the direct method suffers from the fake eigen-energy problem, which we call the "mirage problem," while the HAL QCD method can extract information from all elastic states by using the spatial correlation. In this work, we further investigate systematic uncertainties of the HAL QCD method such as the quark source operator dependence, the convergence of the derivative expansion of the non-local interaction kernel, and the single baryon saturation, which are found to be well controlled. We also confirm the consistency between the HAL QCD method and the Lüscher's finite volume formula. Based on the HAL QCD potential, we quantitatively confirm that the mirage plateau in the direct method is indeed caused by the contamination of excited states.

  12. On the influence of the instillation time on the results of HAL (Hexvix) fluorescence detection of superficial bladder cancer

    Science.gov (United States)

    Jichlinski, Patrice; Aymon, Daniela; Wagnieres, Georges A.; Marti, Alexandre; Lange, Norbert; Guillou, Louis; Leisinger, Hans-Juerg; van den Bergh, Hubert

    2003-10-01

    Hexyl aminolevulinate (HAL) fluorescence cystoscopy is being investigated as a new diagnostic tool for the detection of flat urothelial malignancies in bladder cancers. However, the influence of the bladder instillation time on the performance of this detection modality has not been addressed up to now. We report our initial experience comparing different instillation schedules of HAL cystoscopy in the diagnosis of superficial bladder cancer. A total of 718 fluorescent positive (433) and fluorescence negative (285) biopsies have been taken in the bladder of 143 patients using the Storz D-light fluorescence imaging system (Karl Storz, Tuttlingen, Germany) which allows both white and blue light (380-450 nm) bladder wall inspection. Following hospitalisation, 50 ml of HAL (8mM) phosphate buffer solution was instilled into the bladder of patients during one hour (1 hour protocol involving 57 patients), or during two hours followed by a two hours resting time after removal of the solution (2+2 hours protocol involving 86 patients). Both instillation subgroups were homogeneous in terms of proportion of high risk disease, previous BCG treatment and/or recurrent disease. This study indicates that the instillation duration does not influence the results of HAL (Hexvix) fluorescence cystoscopy in our conditions. Compared to the standard use of ALA, HAL (Hexvix) fluorescence cystoscopy allows a significant reduction of the instillation time (to less than one hour) without prejudicing the efficacy of the method, what represents a real advantage in daily clinical practice.

  13. Updated estimates of HAL n and RN- effects on pork quality: fresh and processed loin and ham.

    Science.gov (United States)

    Cherel, P; Glénisson, J; Figwer, P; Pires, J; Damon, M; Franck, M; Le Roy, P

    2010-12-01

    A 1000-pig F2 intercross QTL detection experimental population was generated using two commercial sire lines. Independent carriers of HAL n and RN- mutations (10% and 14%, respectively) were included in this population as control genotypes. The effects of HAL n and RN- heterozygous genotypes on fresh and transformed loins and hams were estimated using a mixed model methodology. The results document the unfavorable effects of both mutations on meat quality. Smaller effects of HAL Nn genotype compared to HAL nn or RN-rn+ genotypes were estimated. Interestingly, effects of HAL Nn genotype on meat pH and loin color could be insignificant at 24-h postmortem, but translate into higher water losses on storage and cooking, and result in tougher cooked loin. Using the same methodology, significant effects of the PRKAG3 (RN) I199 allele on ultimate pH values but not on glycolytic potential were observed. Copyright © 2010 The American Meat Science Association. Published by Elsevier Ltd. All rights reserved.

  14. Clinical application of the Hybrid Assistive Limb (HAL) for gait training-a systematic review.

    Science.gov (United States)

    Wall, Anneli; Borg, Jörgen; Palmcrantz, Susanne

    2015-01-01

    The aim of this study was to review the literature on clinical applications of the Hybrid Assistive Limb system for gait training. A systematic literature search was conducted using Web of Science, PubMed, CINAHL and clinicaltrials.gov and additional search was made using reference lists in identified reports. Abstracts were screened, relevant articles were reviewed and subject to quality assessment. Out of 37 studies, 7 studies fulfilled inclusion criteria. Six studies were single group studies and 1 was an explorative randomized controlled trial. In total, these studies involved 140 participants of whom 118 completed the interventions and 107 used HAL for gait training. Five studies concerned gait training after stroke, 1 after spinal cord injury (SCI) and 1 study after stroke, SCI or other diseases affecting walking ability. Minor and transient side effects occurred but no serious adverse events were reported in the studies. Beneficial effects on gait function variables and independence in walking were observed. The accumulated findings demonstrate that the HAL system is feasible when used for gait training of patients with lower extremity paresis in a professional setting. Beneficial effects on gait function and independence in walking were observed but data do not allow conclusions. Further controlled studies are recommended.

  15. Synthesis and photostabilizing performance of a polymeric HALS based on 1,2,2,6,6-pentamethylpiperidine and vinyl acetate

    Directory of Open Access Journals (Sweden)

    Marcelo Aparecido Chinelatto

    2015-01-01

    Full Text Available Abstract Polymeric hindered amine light stabilizers (polymeric HALS have been extensively studied because they combine a high ability to protect the polymers against harmful effects of weathering with minimum physical loss. In this study a new polymeric N-methylated HALS was synthesized by the radical copolymerization of a cyclic tertiary amine with vinyl acetate (VAc. 4-Acryloyloxy-1,2,2,6,6-pentamethylpiperidine (APP, the cyclic tertiary amine, was prepared by the initial conversion of 2,2,6,6-tetramethyl-4-piperidinol derivatives via two different routes. The APP/VAc copolymer synthesized was characterized by size exclusion chromatography (SEC, Fourier transform infrared spectroscopy (FTIR and carbon-13 nuclear magnetic resonance (13C NMR. The photostabilizing performance, particularly the induction period of polypropylene (PP films containing different concentrations of APP/VAc copolymer, when exposed to accelerated aging, was comparable to that of PP films compounded with commercial polymeric HALS.

  16. Diverticulitis of the sigmoid colon. A comparison of CT, colonic enema and laparoscopy

    International Nuclear Information System (INIS)

    Stefansson, T.; Univ. Hospital, Uppsala; Nyman, R.; Nilsson, S.; Ekbom, A.; Univ. Hospital, Uppsala; Paahlman, L.

    1997-01-01

    Purpose: To evaluate the use of laparoscopy, CT, colonic enema (CE), and laboratory tests (white blood cell count (WBC), sedimentation rate (SR), and C-reactive protein (CRP)) in diagnosing diverticulitis of the sigmoid colon. Material and Methods: The diagnostic methods were prospectively evaluated in 88 patients, 30 of whom were referred for laparoscopy. Results: Fity-two patients were found to have sigmoid diverticulitis: 20 patients by lanparoscopy, 21 by CT, and 11 by CE combined with one positive laboratory test. Laparoscopy proved to be superior to the other diagnostic methods in diagnosing diverticulitis of the sigmoid colon. CT had a high specificity (1.0; 95% CI: 0.92-1.0) but low sensitivity (0.69; 95% CI: 0.56-0.79) in detecting diverticulitis. CE had a higher sensitivity (0.82; 95% CI: 0.71-0.90) but a lower specificity (0.81; 95% CI: 0.67-0.91) than CT. Conclusion: CT was the best method for diagnosing abdominal pathology outside the colon. CT can be recommended as the first examination in seriously ill patients where abscesses and other causes of the symptoms than diverticulitis must first be rule out. Laparoscopy is probably the most accurate method in diagnosing diverticulitis. (orig.)

  17. Analysis of secondary cytoreduction for recurrent ovarian cancer by robotics, laparoscopy and laparotomy.

    Science.gov (United States)

    Magrina, Javier F; Cetta, Rachel L; Chang, Yu-Hui; Guevara, Gregory; Magtibay, Paul M

    2013-05-01

    Analysis of perioperative outcomes and survival of patients with recurrent ovarian cancer undergoing secondary cytoreduction by robotics, laparoscopy, or laparotomy. Retrospective analysis of 52 selected patients with recurrent ovarian cancer undergoing secondary cytoreduction by laparoscopy (9), laparotomy (33) or robotics (10) between January 2006 and December 2010. Comparison was made by a total of 21 factors including age, BMI, number of previous surgeries, tumor type and grade, number of procedures, and 15 types of procedures performed at secondary cytoreduction. For all patients, the mean operating time was 213.8 min, mean blood loss 657.4 ml; and mean hospital stay 7.5 days. Complete debulking was achieved in 75% of patients. Postoperative complications were noted in 36.5% of patients. Overall and progression-free survival at 3-years were 58.8% and 34.1%, respectively. Laparoscopy and robotics had reduced blood loss and hospital stay, while no differences were observed among the three groups for operating time, complications, complete debulking, and survival. Selected patients with recurrent ovarian cancer benefit from a laparoscopic or robotic secondary cytoreduction without compromising survival. Robotics and laparoscopy provide similar perioperative outcomes, and reduced blood loss and shorter hospital stay as compared to laparotomy. Laparotomy seems preferable for patients with widespread peritoneal implants, multiple sites of recurrence, and/or extensive adhesions. Copyright © 2013 Elsevier Inc. All rights reserved.

  18. Performance Variables and Professional Experience in Simulated Laparoscopy: A Two-Group Learning Curve Study

    NARCIS (Netherlands)

    Luursema, J.M.; Rovers, Maroeska M.; Groenier, Marleen; van Goor, Harry

    2014-01-01

    Objective Virtual reality simulators are increasingly used in laparoscopy training. Such simulators allow objective assessment of performance. However, both low-level variables and overall scores generated by the simulator can be hard to interpret. We present a method to generate intermediate

  19. Performance variables and professional experience in simulated laparoscopy: a two-group learning curve study

    NARCIS (Netherlands)

    Luursema, J.M.; Rovers, M.M.; Groenier, M.; Goor, H. van

    2014-01-01

    OBJECTIVE: Virtual reality simulators are increasingly used in laparoscopy training. Such simulators allow objective assessment of performance. However, both low-level variables and overall scores generated by the simulator can be hard to interpret. We present a method to generate intermediate

  20. Laparoscopy in major abdominal emergency surgery seems to be a safe procedure

    DEFF Research Database (Denmark)

    Nielsen, Liv Bjerre Juul; Tengberg, Line Toft; Bay-Nielsen, Morten

    2017-01-01

    INTRODUCTION: Laparoscopy is well established in the majority of elective procedures in abdominal surgery. In contrast, it is primarily used in minor surgery such as appendectomy or cholecystectomy in the emergent setting. This study aimed to analyze the safety and effectiveness of a laparoscopic...

  1. Improving standard of care through introduction of laparoscopy for the surgical management of gynecological malignancies.

    Science.gov (United States)

    Bogani, Giorgio; Cromi, Antonella; Serati, Maurizio; Di Naro, Edoardo; Casarin, Jvan; Pinelli, Ciro; Candeloro, Ilario; Sturla, Davide; Ghezzi, Fabio

    2015-05-01

    This study aimed to evaluate the impact on perioperative and medium-term oncologic outcomes of the implementation of laparoscopy into a preexisting oncologic setting. Data from consecutive 736 patients undergoing surgery for apparent early stage gynecological malignancies (endometrial, cervical, and adnexal cancers) between 2000 and 2011 were reviewed. Complications were graded per the Accordion classification. Survival outcomes within the first 5 years were analyzed using Kaplan-Meier method. Overall, 493 (67%), 162 (22%), and 81 (11%) had surgery for apparent early stage endometrial, cervical, and adnexal cancer. We assisted at an increase of the number of patients undergoing surgery via laparoscopy through the years (from 10% in the years 2000-2003 to 82% in years 2008-2011; P 0.05). The introduction of laparoscopy did not adversely affect medium-term (within 5 years) survival outcomes of patients undergoing surgery for apparent early stage cancers of the endometrium, uterine cervix, and adnexa (P > 0.05 log-rank test). The introduction of laparoscopy into a preexisting oncologic service allows an improvement of standard of care due to a gain in perioperative results, without detriments of medium-term oncologic outcomes.

  2. The role of laparoscopy in the management of urachal anomalies in ...

    African Journals Online (AJOL)

    Objectives Management for urachal anomalies (UAs) is controversial. Although traditional treatment of UAs has been surgical excision, recent literature report also a conservative approach. We reviewed our experience to define the role of laparoscopy in the management of UAs in children. Patients and methods From July ...

  3. A Sense of Touch in Laparoscopy : Using Augmented Haptic Feedback to Improve Grasp Control

    NARCIS (Netherlands)

    Westebring-van der Putten, E.P.

    2011-01-01

    Laparoscopy is Minimally Invasive Surgery (MIS) that is conducted in the belly alcove and which enables instruments, which enter the body through small incisions, to manipulate tissue. The possible complications arising during laparoscopic surgery are partly caused by improper grasp control on the

  4. Staging laparoscopy improves treatment decision-making for advanced gastric cancer.

    Science.gov (United States)

    Hu, Yan-Feng; Deng, Zhen-Wei; Liu, Hao; Mou, Ting-Yu; Chen, Tao; Lu, Xin; Wang, Da; Yu, Jiang; Li, Guo-Xin

    2016-02-07

    To evaluate the clinical value of staging laparoscopy in treatment decision-making for advanced gastric cancer (GC). Clinical data of 582 patients with advanced GC were retrospectively analyzed. All patients underwent staging laparoscopy. The strength of agreement between computed tomography (CT) stage, endoscopic ultrasound (EUS) stage, laparoscopic stage, and final stage were determined by weighted Kappa statistic (Kw). The number of patients with treatment decision-changes was counted. A χ(2) test was used to analyze the correlation between peritoneal metastasis or positive cytology and clinical characteristics. Among the 582 patients, the distributions of pathological T classifications were T2/3 (153, 26.3%), T4a (262, 45.0%), and T4b (167, 28.7%). Treatment plans for 211 (36.3%) patients were changed after staging laparoscopy was performed. Two (10.5%) of 19 patients in M1 regained the opportunity for potential radical resection by staging laparoscopy. Unnecessary laparotomy was avoided in 71 (12.2%) patients. The strength of agreement between preoperative T stage and final T stage was in almost perfect agreement (Kw = 0.838; 95% confidence interval (CI): 0.803-0.872; P advanced GC and decrease unnecessary exploratory laparotomy.

  5. Role of laparoscopy and ultrasound in the management of “impalpable testis” in children

    Directory of Open Access Journals (Sweden)

    Iskandar Rahardjo Budianto

    2014-10-01

    Conclusions: Laparoscopy is superior to ultrasound in the management of impalpable testes when high-resolution ultrasound is not available during the diagnostic process, with respect to both the sensitivity of localizing the testis and being more time and cost effective.

  6. Hybrid (laparoscopy + stent) treatment of celiac trunk compression syndrome (Dunbar syndrome, median arcuate ligament syndrome (MALS)).

    Science.gov (United States)

    Michalik, Maciej; Dowgiałło-Wnukiewicz, Natalia; Lech, Paweł; Majda, Kaja; Gutowski, Piotr

    2016-01-01

    Celiac trunk (CT) compression syndrome caused by the median arcuate ligament (MAL) is a rarely diagnosed disease because of its nonspecific symptoms, which cause a delay in the correct diagnosis. Intestinal ischemia occurs, which causes symptoms of abdominal angina. One method of treatment for this disease is surgical release of the CT - the intersection of the MAL. Laparoscopy is the first step of the hybrid technique combined with percutaneous angioplasty and stenting of the CT. To demonstrate the usefulness and advantages of the laparoscopic approach in the treatment of Dunbar syndrome. Between 2013 and 2016 in the General and Minimally Invasive Surgery Department of the Medical Sciences Faculty of the University of Warmia and Mazury in Olsztyn, 6 laparoscopic procedures were performed because of median arcuate ligament syndrome. During the laparoscopy the MAL was cut with a harmonic scalpel. One month after laparoscopy 5 patients had Doppler percutaneous angioplasty of the CT with stent implantation in the Vascular Surgery Department in Pomeranian Medical University in Szczecin. In one case, there was a conversion of laparoscopic surgery to open due to unmanageable intraoperative bleeding. In one case, postoperative ultrasound examination of the abdominal cavity demonstrated the presence of a large hematoma in the retroperitoneal space. All patients reported relief of symptoms in the first days after the operation. The hybrid method, combining laparoscopy and angioplasty, seems to be a long-term solution, which increases the comfort of the patient, brings the opportunity for normal functioning and minimizes the risk of restenosis.

  7. Laparoscopy has a therapeutic role in the management of abdominal trauma: A matched-pair analysis.

    Science.gov (United States)

    Chakravartty, Saurav; Sarma, Diwakar R; Noor, Muhammad; Panagiotopoulos, Spyros; Patel, Ameet G

    2017-08-01

    Laparoscopy is increasingly utilised as a diagnostic tool in management of abdominal trauma; however its role in therapeutic intervention remains unexplored. The aim of this study is to compare laparoscopy with laparotomy in the treatment of abdominal trauma in haemodynamically stable patients. A review of patients undergoing surgery for abdominal trauma between January 2004-2014 identified 25 patients who underwent laparoscopy for therapeutic intervention (TL). This group was matched with 25 similar patients undergoing laparotomy (LT). Matching of the two cohorts was based on patient characteristics, severity of injuries, haemodynamic compromise and radiological findings. Peri-operative outcomes were compared. Patient characteristics were similar in TL and LT patients for age (median 33 vs. 26 years), gender distribution and clinical presentation. Injury severity score was also similar with a median of 16 in both groups (major trauma = ISS>15, normal range 0-75). Types of injuries included; hollow viscus [bowel repair = 10 (TL) vs. 16 (LT)] and solid organs [5(TL) vs. 2 (LT)]. Median operating time was similar in both groups; 105(TL) compared to 98 (LT) minutes. Post-operative complications (1 vs. 10, p = 0.02), analgesia requirements, specifically opiate use (34 vs. 136 morphine equivalents, p = 0.002) and hospital stay (4 vs. 9 days, p = 0.03) were significantly lower in the laparoscopy group. Abdominal trauma in haemodynamically stable patients can be managed effectively and safely with laparoscopy by experienced surgeons. Major benefits may include lower morbidity, reduced pain, and shorter length of hospital stay. Crown Copyright © 2017. Published by Elsevier Ltd. All rights reserved.

  8. The Utility of Diagnostic Laparoscopy in Post-Bariatric Surgery Patients with Chronic Abdominal Pain of Unknown Etiology.

    Science.gov (United States)

    Alsulaimy, Mohammad; Punchai, Suriya; Ali, Fouzeyah A; Kroh, Matthew; Schauer, Philip R; Brethauer, Stacy A; Aminian, Ali

    2017-08-01

    Chronic abdominal pain after bariatric surgery is associated with diagnostic and therapeutic challenges. The aim of this study was to evaluate the yield of laparoscopy as a diagnostic and therapeutic tool in post-bariatric surgery patients with chronic abdominal pain who had negative imaging and endoscopic studies. A retrospective analysis was performed on post-bariatric surgery patients who underwent laparoscopy for diagnosis and treatment of chronic abdominal pain at a single academic center. Only patients with both negative preoperative CT scan and upper endoscopy were included. Total of 35 post-bariatric surgery patients met the inclusion criteria, and all had history of Roux-en-Y gastric bypass. Twenty out of 35 patients (57%) had positive findings on diagnostic laparoscopy including presence of adhesions (n = 12), chronic cholecystitis (n = 4), mesenteric defect (n = 2), internal hernia (n = 1), and necrotic omentum (n = 1). Two patients developed post-operative complications including a pelvic abscess and an abdominal wall abscess. Overall, 15 patients (43%) had symptomatic improvement after laparoscopy; 14 of these patients had positive laparoscopic findings requiring intervention (70% of the patients with positive laparoscopy). Conversely, 20 (57%) patients required long-term medical treatment for management of chronic abdominal pain. Diagnostic laparoscopy, which is a safe procedure, can detect pathological findings in more than half of post-bariatric surgery patients with chronic abdominal pain of unknown etiology. About 40% of patients who undergo diagnostic laparoscopy and 70% of patients with positive findings on laparoscopy experience significant symptom improvement. Patients should be informed that diagnostic laparoscopy is associated with no symptom improvement in about half of cases.

  9. The voluntary driven exoskeleton Hybrid Assistive Limb (HAL) for postoperative training of thoracic ossification of the posterior longitudinal ligament: a case report.

    Science.gov (United States)

    Fujii, Kengo; Abe, Tetsuya; Kubota, Shigeki; Marushima, Aiki; Kawamoto, Hiroaki; Ueno, Tomoyuki; Matsushita, Akira; Nakai, Kei; Saotome, Kosaku; Kadone, Hideki; Endo, Ayumu; Haginoya, Ayumu; Hada, Yasushi; Matsumura, Akira; Sankai, Yoshiyuki; Yamazaki, Masashi

    2017-05-01

    The hybrid assistive limb (HAL) is a wearable robot suit that assists in voluntary control of knee and hip joint motion by detecting bioelectric signals on the surface of the skin with high sensitivity. HAL has been reported to be effective for functional recovery in motor impairments. However, few reports have revealed the utility of HAL for patients who have undergone surgery for thoracic ossification of the posterior longitudinal ligament (thoracic OPLL). Herein, we present a postoperative thoracic OPLL patient who showed remarkable functional recovery after training with HAL. A 63-year-old woman, who could not walk due to muscle weakness before surgery, underwent posterior decompression and fusion. Paralysis was re-aggravated after the initial postoperative rising. We diagnosed that paralysis was due to residual compression from the anterior lesion and microinstability after posterior fixation, and prescribed bed rest for a further 3 weeks. The incomplete paralysis gradually recovered, and walking training with HAL was started on postoperative day 44 in addition to standard physical therapy. The patient underwent 10 sessions of HAL training until discharge on postoperative day 73. Results of a 10-m walk test were assessed after every session, and the patient's speed and cadence markedly improved. At discharge, the patient could walk with 2 crutches and no assistance. Furthermore, no adverse events associated with HAL training occurred. HAL training for postoperative thoracic OPLL patients may enhance improvement in walking ability, even if severe impairment of ambulation and muscle weakness exist preoperatively.

  10. Bidirectional reporter assay using HAL promoter and TOPFLASH improves specificity in high-throughput screening of Wnt inhibitors.

    Science.gov (United States)

    Yamaguchi, Kiyoshi; Zhu, Chi; Ohsugi, Tomoyuki; Yamaguchi, Yuko; Ikenoue, Tsuneo; Furukawa, Yoichi

    2017-12-01

    Constitutive activation of Wnt signaling plays an important role in colorectal and liver tumorigenesis. Cell-based assays using synthetic TCF/LEF (T-cell factor/lymphoid enhancer factor) reporters, as readouts of β-catenin/TCF-dependent transcriptional activity, have contributed greatly to the discovery of small molecules that modulate Wnt signaling. In the present study, we report a novel screening method, called a bidirectional dual reporter assay. Integrated transcriptome analysis identified a histidine ammonia-lyase gene (HAL) that was negatively regulated by β-catenin/TCF-dependent transcriptional activity. We leveraged a promoter region of the HAL gene as another transcriptional readout of Wnt signaling. Cells stably expressing both an optimized HAL reporter and the TCF/LEF reporter enabled bidirectional reporter activities in response to Wnt signaling. Increased HAL reporter activity and decreased TCF/LEF reporter activity were observed simultaneously in the cells when β-catenin/TCF7L2 was inhibited. Notably, this method could decrease the number of false positives observed when screening an inhibitor library compared with the conventional TCF/LEF assay. We found that Brefeldin A, a disruptor of the Golgi apparatus, inhibited the Wnt/β-catenin signaling pathway. The utility of our system could be expanded to examine other disease-associated pathways beyond the Wnt/β-catenin signaling pathway. © 2017 Wiley Periodicals, Inc.

  11. I = 2 ππ scattering phase shift from the HAL QCD method with the LapH smearing

    Science.gov (United States)

    Kawai, Daisuke; Aoki, Sinya; Doi, Takumi; Ikeda, Yoichi; Inoue, Takashi; Iritani, Takumi; Ishii, Noriyoshi; Miyamoto, Takaya; Nemura, Hidekatsu; Sasaki, Kenji

    2018-04-01

    Physical observables, such as the scattering phase shifts and binding energy, calculated from the non-local HAL QCD potential do not depend on the sink operators used to define the potential. In practical applications, the derivative expansion of the non-local potential is employed, so that physical observables may receive some scheme dependence at a given order of the expansion. In this paper, we compare the I=2ππ scattering phase shifts obtained in the point-sink scheme (the standard scheme in the HAL QCD method) and the smeared-sink scheme (the LapH smearing newly introduced in the HAL QCD method). Although potentials in different schemes have different forms as expected, we find that, for reasonably small smearing size, the resultant scattering phase shifts agree with each other if the next-to-leading-order (NLO) term is taken into account. We also find that the HAL QCD potential in the point-sink scheme has a negligible NLO term for a wide range of energies, which implies good convergence of the derivative expansion, while the potential in the smeared-sink scheme has a non-negligible NLO contribution. The implications of this observation for future studies of resonance channels (such as the I=0 and 1ππ scatterings) with smeared all-to-all propagators are briefly discussed.

  12. Immediate effects of a single session of robot-assisted gait training using Hybrid Assistive Limb (HAL) for cerebral palsy.

    Science.gov (United States)

    Matsuda, Mayumi; Mataki, Yuki; Mutsuzaki, Hirotaka; Yoshikawa, Kenichi; Takahashi, Kazushi; Enomoto, Keiko; Sano, Kumiko; Mizukami, Masafumi; Tomita, Kazuhide; Ohguro, Haruka; Iwasaki, Nobuaki

    2018-02-01

    [Purpose] Robot-assisted gait training (RAGT) using Hybrid Assistive Limb (HAL, CYBERDYNE) was previously reported beneficial for stroke and spinal cord injury patients. Here, we investigate the immediate effect of a single session of RAGT using HAL on gait function for cerebral palsy (CP) patients. [Subjects and Methods] Twelve patients (average age: 16.2 ± 7.3 years) with CP received a single session of RAGT using HAL. Gait speed, step length, cadence, single-leg support per gait cycle, hip and knee joint angle in stance, and swing phase per gait cycle were assessed before, during, and immediately after HAL intervention. [Results] Compared to baseline values, single-leg support per gait cycle (64.5 ± 15.8% to 69.3 ± 12.1%), hip extension angle in mid-stance (149.2 ± 19.0° to 155.5 ± 20.1°), and knee extension angle in mid-stance (137.6 ± 20.2° to 143.1 ± 19.5°) were significantly increased immediately after intervention. Further, the knee flexion angle in mid-swing was significantly decreased immediately after treatment (112.0 ± 15.5° to 105.2 ± 17.1°). Hip flexion angle in mid-swing also decreased following intervention (137.2 ± 14.6° to 129.7 ± 16.6°), but not significantly. Conversely, gait speed, step length, and cadence were unchanged after intervention. [Conclusion] A single-time RAGT with HAL improved single-leg support per gait cycle and hip and knee joint angle during gait, therapeutically improving gait function in CP patients.

  13. Value of diagnostic and therapeutic laparoscopy for patients with blunt abdominal trauma: A 10-year medical center experience.

    Science.gov (United States)

    Lin, Heng-Fu; Chen, Ying-Da; Chen, Shyr-Chyr

    2018-01-01

    Laparoscopy has been used for the diagnosis and treatment for hemodynamically stable patients with penetrating abdominal trauma. This study evaluated whether diagnostic and therapeutic laparoscopy can be used as effectively in select patients with blunt abdominal trauma. All hemodynamically stable patients undergoing operations for blunt abdominal trauma over a 10-year period (2006-2015) at a tertiary medical center were included. Patients undergoing laparotomy were categorized as group A. Patients who underwent laparoscopy were categorized as group B. The clinical outcomes of the 2 groups were compared. There were 139 patients in group A and 126 patients in group B. Group A patients were more severely injured (mean injury severity score of 23.3 vs. 18.9, P .05). Laparoscopy is a feasible and safe tool for the diagnosis and treatment of hemodynamically stable patients with blunt abdominal trauma who require surgery.

  14. Transumbilical single-site laparoscopy takes the advantage of ultraminilaparotomy in managing an extremely large ovarian cyst

    Directory of Open Access Journals (Sweden)

    Hsuan Su

    2012-11-01

    Conclusion: This application not only provides both advantages of ultraminilaparotomy and laparoscopy but it also overcomes the limitations of both approaches. Therefore, it is the surgical approach of choice for a patient bearing an extremely large ovarian cystic tumor.

  15. Near-Infrared Fluorescence Laparoscopy of the Cystic Duct and Artery in Pigs : Performance of a Preclinical Dye

    NARCIS (Netherlands)

    Schols, Rutger M.; Lodewick, Toine M.; Bouvy, Nicole D.; van Dam, Dieuwertje A.; Meijerink, Wilhelmus J. H. J.; van Dam, Gooitzen M.; Dejong, Cornelis H. C.; Stassen, Laurents P. S.

    2014-01-01

    Background: Near-infrared fluorescence laparoscopy after intravenous indocyanine green (ICG) administration has been proposed as a promising surgical imaging technique for real-time visualization of the extrahepatic bile ducts and arteries in clinical laparoscopic cholecystectomies. However,

  16. Treatment Patterns, Complications, and Health Care Utilization Among Endometriosis Patients Undergoing a Laparoscopy or a Hysterectomy: A Retrospective Claims Analysis.

    Science.gov (United States)

    Surrey, Eric S; Soliman, Ahmed M; Yang, Hongbo; Du, Ella Xiaoyan; Su, Bowdoin

    2017-11-01

    Hysterectomy and laparoscopy are common surgical procedures used for the treatment of endometriosis. This study compares outcomes for women who received either procedure within the first year post initial surgery. The study used data from the Truven Health MarketScan claims databases from 2004 to 2013 to identify women aged 18-49 years who received an endometriosis-related laparoscopy or hysterectomy. Patients were excluded if they did not have continuous insurance coverage from 1 year before through 1 year after their endometriosis-related procedure, if they were diagnosed with uterine fibroids prior to or on the date of surgery (i.e., index date), or if they had a hysterectomy prior to the index date. The descriptive analyses examined differences between patients with an endometriosis-related laparoscopy or hysterectomy in regard to medications prescribed, complications, and hospitalizations during the immediate year post procedure. The final sample consisted of 24,915 women who underwent a hysterectomy and 37,308 who underwent a laparoscopy. Results revealed significant differences between the cohorts, with women who received a laparoscopy more likely to be prescribed a GnRH agonist, progestin, danazol, or an opioid analgesic in the immediate year post procedure compared to women who underwent a hysterectomy. In contrast, women who underwent a hysterectomy generally had higher complication rates. Index hospitalization rates and length of stay (LOS) were higher for women who had a hysterectomy, while post-index hospitalization rates and LOS were higher for women who had a laparoscopy. For both cohorts, post-procedure complications were associated with significantly higher hospitalization rates and longer LOS. This study indicated significantly different 1-year post-surgical outcomes for patients who underwent an endometriosis-related hysterectomy relative to a laparoscopy. Furthermore, the endometriosis patients in this analysis had a considerable risk of

  17. [Diffuse Malignant Peritoneal Mesothelioma with Secondary Liver Invasion Diagnosed Using Laparoscopy - A Case Report].

    Science.gov (United States)

    Yasuda, Hiroshi; Okumura, Satoshi; Toyoda, Shou; Yamamoto, Kansuke; Mizumura, Naoto; Itou, Aya; Ogawa, Masao; Kawasaki, Masayasu; Kameyama, Masao

    2018-03-01

    A 69-year-old man with right upper quadrant abdominal pain and fever was referred to our hospital. He had a history of asbestosis exposure. Computed tomography(CT)revealed a mass at the right subhepatic space, and an antibiotic was administered after a diagnosis of an abdominal abscess. However, the patient did not respond to the treatment, and finally, exploratory laparoscopy was performed. A sheet of combined white nodules surrounding the right lobe of the liver was found, and the mass was continuous with the covering particles. Biopsy of the mass and immunohistochemical examination was performed. The resulting diagnosis was diffuse epithelial malignant peritoneal mesothelioma(MPM). Postoperative systematic chemotherapy of pemetrexed and cisplatin was administered. Laparoscopy was useful to evaluate the distribution of the MPM, which led to adequate therapeutic determination.

  18. Impact of Three-Dimensional Laparoscopy in a Bariatric Surgery Program: Influence in the Learning Curve.

    Science.gov (United States)

    Padin, Esther Mariño; Santos, Raquel Sánchez; Fernández, Sonia González; Jimenez, Antonia Brox; Fernández, Sergio Estevez; Dacosta, Ester Carrera; Duran, Agata Rial; Artime Rial, Maria; Dominguez Sanchez, Ivan

    2017-10-01

    3D laparoscopy allows the surgeon to regain the sense of depth and improve accuracy. The aim of the study was to assess the impact of 3D in bariatric surgery. A retrospective cohort study was conducted. All our patients who underwent bariatric surgery (sleeve gastrectomy (SG) or gastric bypass (GB)) between 2013 and 2016 were included. We compared 3D laparoscopy cohort and 2D laparoscopy cohort. Variables are as follows: age, sex, DM, hypertension, surgeon experience, and type of intervention. Comparisons of operative time, hospital stay, conversion, complications, reoperation, and exitus are completed. Three hundred twelve consecutive patients were included. 56.9% of patients underwent GB and 43.1% SG. Global complications were 3.2% (fistula 2.5%, hemoperitoneum 0.3%, others 0.4%). One hundred four procedures were performed in the 3D cohort and 208 in the 2D cohort. The 2D cohort and 3D cohort were similar regarding the following: percentage of GB vs SG, age, gender, learning curve, diabetes mellitus 2, hypertension, and sleep apnea. The operating time and hospital stay were significantly reduced in the 3D cohort (144.07 ± 58.07 vs 172.11 ± 76.11 min and 5.12 ± 9.6 vs 7.7 ± 13.2 days. It was the same when we stratified the sample by type of surgery or experience of the surgeon. Complications were reduced in the 3D cohort in the surgeries performed by novice surgeons (10.2 vs 1.8%, p = 0.034). The use of 3D laparoscopy in bariatric surgery in our center has helped reducing the operating time and hospital stay, and improving the safety of the surgery, either in GB or SG, being equally favorable in novice or more experienced surgeons.

  19. Laparoscopy for bowel obstruction--a contradiction? Results of a multi-institutional survey in Germany.

    Science.gov (United States)

    Zimmermann, M; Hoffmann, M; Laubert, T; Bruch, H P; Keck, T; Benecke, C; Schlöricke, E

    2016-05-01

    The purpose of the present study was to investigate on the acceptance and frequency of laparoscopic surgery for the management of acute and chronic bowel obstruction in a general patient population in German hospitals. To receive an authoritative opinion on laparoscopic treatment of bowel obstruction in Germany, a cross-sectional online study was conducted. We designed an online-based survey, supported by the German College of Surgeons (Berufsverband der Deutschen Chirurgen, BDC) to get multi-institutional-based data from various level providers of patient care. Between January and February 2014, we received completed questionnaires from 235 individuals (16.7 %). The participating surgeons were a representative sample of German hospitals with regard to hospital size, level of center size, and localization. A total of 74.9 % (n = 176) of all responders stated to use laparoscopy as the initial step of exploration in expected bowel obstruction. This procedure was highly statistically associated with the frequency of overall laparoscopic interventions and laparoscopic experience. The overall conversion rate was reported to be 29.4 %. This survey, investigating on the use of laparoscopic exploration or interventions in bowel obstruction, was able to show that by now, a majority of the responding surgeons accept laparoscopy as an initial step for exploration of the abdomen in the case of bowel obstruction. Laparoscopy was considered to be at least comparable to open surgery in an emergency setting. Furthermore, data analysis demonstrated generally accepted advantages and disadvantages of the laparoscopic approach. Indications for or against laparoscopy are made after careful consideration in each individual case.

  20. Hybrid (laparoscopy + stent treatment of celiac trunk compression syndrome (Dunbar syndrome, median arcuate ligament syndrome (MALS

    Directory of Open Access Journals (Sweden)

    Maciej Michalik

    2016-12-01

    Full Text Available Introduction : Celiac trunk (CT compression syndrome caused by the median arcuate ligament (MAL is a rarely diagnosed disease because of its nonspecific symptoms, which cause a delay in the correct diagnosis. Intestinal ischemia occurs, which causes symptoms of abdominal angina. One method of treatment for this disease is surgical release of the CT – the intersection of the MAL. Laparoscopy is the first step of the hybrid technique combined with percutaneous angioplasty and stenting of the CT. Aim: To demonstrate the usefulness and advantages of the laparoscopic approach in the treatment of Dunbar syndrome. Material and methods : Between 2013 and 2016 in the General and Minimally Invasive Surgery Department of the Medical Sciences Faculty of the University of Warmia and Mazury in Olsztyn, 6 laparoscopic procedures were performed because of median arcuate ligament syndrome. During the laparoscopy the MAL was cut with a harmonic scalpel. One month after laparoscopy 5 patients had Doppler percutaneous angioplasty of the CT with stent implantation in the Vascular Surgery Department in Pomeranian Medical University in Szczecin. Results : In one case, there was a conversion of laparoscopic surgery to open due to unmanageable intraoperative bleeding. In one case, postoperative ultrasound examination of the abdominal cavity demonstrated the presence of a large hematoma in the retroperitoneal space. All patients reported relief of symptoms in the first days after the operation. Conclusions : The hybrid method, combining laparoscopy and angioplasty, seems to be a long-term solution, which increases the comfort of the patient, brings the opportunity for normal functioning and minimizes the risk of restenosis.

  1. Video-assisted laparoscopy for the detection and diagnosis of endometriosis: safety, reliability, and invasiveness

    OpenAIRE

    Schipper, Erica; Nezhat, Camran

    2012-01-01

    Erica Schipper,1 Camran Nezhat21Center for Minimally Invasive and Robotic Surgery, Palo Alto, CA; 2Obstetrics/Gynecology and Surgery, Stanford University Medical Center, Palo Alto, CA, USAAbstract: Endometriosis is a highly enigmatic disease with multiple presentations ranging from infertility to severe pain, often causing significant morbidity. Video-assisted laparoscopy (VALS) has now replaced laparotomy as the gold standard for the diagnosis and management of endometriosis. While imaging h...

  2. Physical and mental workload in single-incision laparoscopic surgery and conventional laparoscopy.

    Science.gov (United States)

    Koca, Dilek; Yıldız, Sedat; Soyupek, Feray; Günyeli, İlker; Erdemoglu, Ebru; Soyupek, Sedat; Erdemoglu, Evrim

    2015-06-01

    The aim of the present study is to evaluate mental workload and fatigue in fingers, hand, arm, shoulder in single-incision laparoscopic surgery (SILS) and multiport laparoscopy. Volunteers performed chosen tasks by standard laparoscopy and SILS. Time to complete tasks and finger and hand strength were evaluated. Lateral, tripod, and pulp pinch strengths were measured. Hand dexterity was determined by pegboard. Electromyography recordings were taken from biceps and deltoid muscles of both extremities. The main outcome measurement was median frequency (MF) slope. NASA-TLX was used for mental workload. Time to complete laparoscopic tasks were longer in the SILS group (P NASA-TLX score was 73 ± 13.3 and 42 ± 19.5 in SILS and multiport laparoscopy, respectively (P < .01). Mental demand, physical demand, temporal demand, performance, effort, and frustration were, respectively, scored 10.7 ± 3.8, 11.7 ± 3.5, 12.2 ± 2.7, 11 ± 3, 13.6 ± 2.7, and 13.5 ± 2.8 in SILS and 6.3 ± 3.1, 6.6 ± 3.3, 7.3 ± 3.3, 7.1 ± 4.1, 7.9 ± 3.9, and 6.6 ± 3.8 in standard laparoscopy (P < .01). SILS is mentally and physically demanding, particularly on arms and shoulders. Fatigue of big muscles, effort, and frustration were major challenges of SILS. Ergonomic intervention of instruments are needed to decrease mental and physical workload. © The Author(s) 2014.

  3. The frequency of peritoneal tuberculosis using diagnostic laparoscopy in clinically suspected cases

    International Nuclear Information System (INIS)

    Sattar, Z.; Iqbal, M.

    2014-01-01

    Introduction: Diagnostic laparoscopy allows the visual examination and documentation of intra-abdominal organs in order to detect any pathology. It is an important tool for final minimally invasive exploration of patients with abdominal tuberculosis, the diagnosis of which remains uncertain despite employing the requisite laboratory and non-invasive imaging investigations. Objective: To determine the frequency of peritoneal tuberculosis using diagnostic laparoscopy in clinically suspected cases of peritoneal tuberculosis. Study Design: Cross sectional survey. Setting: The study was conducted in all the four Surgical Wards on surgical floor of Mayo Hospital Lahore. Duration of Study with Dates: Six months (1st July 2009 to 31st December 2009). Material and Methods: 35 Patients aged between 13-60 years with clinical suspicion of peritoneal tuberculosis were selected. The patients underwent the procedure accordingly. Per operative diagnosis of peritoneal tuberculosis made on the basis of presence of any or all of the operative (laparoscopic) findings such as multiple peritoneal adhesions, fibrous bands, whitish peritoneal tubercles, omental thickening and ascites. Diagnosis was confirmed with histopathology of peritoneal tissue biopsy. Also the biochemical analysis and culture sensitivity of ascetic fluid was routinely performed if any ascites is present. Results: Out of 35 patients, 40% were males and 60% females with mean age of 24.91+-6.69 years. The Laparoscopic findings of peritoneal tuberculosis were whitish peritoneal tubercles (57.2%) peritoneal adhesions (28.6%), ascites (17.2%), omental thickening (14.3%), fibrous bands (11.4%) and swollen edematous appendix (5.7%). Eighty percent were labeled with diagnosis of peritoneal tuberculosis on basis of diagnostic laparoscopy. These patients were confirmed to have peritoneal tuberculosis on histopathology of tissue biopsy. Conclusion: Diagnostic laparoscopy is useful in patients with suspected peritoneal

  4. Long-Term Follow-Up of a Controlled Trial of Laser Laparoscopy for Pelvic Pain

    OpenAIRE

    Jones, Kevin D.; Haines, Patricia; Sutton, Christopher J. G.

    2001-01-01

    Background and Objectives: The purpose of this study was to assess the long-term efficacy of laparoscopic laser surgery in the treatment of painful pelvic endometriosis. Methods: We conducted a long-term follow-up of 56 patients who had participated in a randomized, double-blind controlled study at a tertiary referral center for the laparoscopic treatment of endometriosis. The patients had pelvic pain, minimal-to-moderate endometriosis, and underwent laser laparoscopy. We asked patients wheth...

  5. Intraperitoneal Dexamethasone As A New Method for Relieving Postoperative Shoulder Pain after Gynecologic Laparoscopy

    Directory of Open Access Journals (Sweden)

    Zahra Asgari

    2012-01-01

    Full Text Available Background: In this study, we tried to show the efficacy of Intraperitoneal dexamethasoneon relieving shoulder pain after gynecologic laparoscopy.Materials and Methods: In this double-blind randomized clinical trial, 63 patients who werecandidates for gynecologic laparoscopy were included. At the end of the procedure patientsrandomly received 16 mg dexamethasone (n=31 or placebo (n=32 intraperitoneally. Visualanalogue scale (VAS was used for clinical evaluation of pain severity during 24 hours afterlaparoscopy . A physician, who was not aware whether patients were treated with drug or placebo,evaluated the patients.Results: The severity of pain in the dexamethasone group within 0, 2, 4, 8, 12, 24 hoursafter procedure was significantly less than in the placebo group (p<0.001. The averageconsumption of opioids as analgesic/ sedative in the placebo group was more than thedexamethasone group (p=0.025.Conclusion: Findings of this study show that the prescription of 16 mg of dexamethasone(single dose in the peritoneal cavity may significantly reduce the severity of painafter Laparoscopy in comparison with placebo and may decrease the need for narcoticsas pain relief (Registration Number: IRCT201105306640N1.

  6. Effect of different pneumoperitoneum pressure on stress state in patients underwent gynecological laparoscopy

    Directory of Open Access Journals (Sweden)

    Ai-Yun Shen

    2016-10-01

    Full Text Available Objective: To observe the effect of different CO2 pneumoperitoneum pressure on the stress state in patients underwent gynecological laparoscopy. Methods: A total of 90 patients who were admitted in our hospital from February, 2015 to October, 2015 for gynecological laparoscopy were included in the study and divided into groups A, B, and C according to different CO2 pneumoperitoneum pressure. The changes of HR, BP, and PetCO2 during the operation process in the three groups were recorded. The changes of stress indicators before operation (T0, 30 min during operation (T1, and 12 h after operation (T2 were compared. Results: The difference of HR, BP, and PetCO2 levels before operation among the three groups was not statistically significant (P>0.05. HR, BP, and PetCO2 levels 30 min after pneumoperitoneum were significantly elevated when compared with before operation (P0.05. PetCO2 level 30 min after pneumoperitoneum in group B was significantly higher than that in group A (P0.05. Conclusions: Low pneumoperitoneum pressure has a small effect on the stress state in patients underwent gynecological laparoscopy, will not affect the surgical operation, and can obtain a preferable muscular relaxation and vision field; therefore, it can be selected in preference.

  7. Chronic pelvic pain: how does noninvasive imaging compare with diagnostic laparoscopy?

    Science.gov (United States)

    Tirlapur, Seema A; Daniels, Jane P; Khan, Khalid S

    2015-12-01

    Chronic pelvic pain (CPP) has an annual prevalence of 38/1000 in the UK, with coexisting pathologies often present. Diagnostic laparoscopy has long been the gold standard diagnostic test, but with up to 40% showing no abnormality, we explore the value of noninvasive imaging, such as pelvic ultrasound and MRI. A literature review from inception until January 2015 of the following databases: PubMed, MEDLINE, Cumulative Index to Nursing and Allied Health Literature, Excerpta Medica database, and System for Information on Grey Literature in Europe were performed to identify published studies assessing the usefulness of ultrasound, MRI, and laparoscopy in the diagnosis of CPP. Three studies (194 women) addressed their comparative performance in patients with endometriosis, showing the sensitivity of ultrasound ranged between 58 and 88.5%; MRI was 56-91.5% and in the one study using histology as its reference standard, the sensitivity of laparoscopy was 85.7%. Noninvasive imaging has the additional benefit of being well tolerated, safer, and cheaper than surgery. CPP, by nature of its multifactorial causation, can be difficult to manage and often requires a multidisciplinary team. Ultrasound and MRI may provide information about the presence or lack of abnormality, which would allow general practitioners or office gynaecologists to initiate treatment and think about surgery as a second-line investigative tool.

  8. Laparoscopy Improves Short-term Outcomes After Surgery for Diverticular Disease

    Science.gov (United States)

    RUSS, ANDREW J.; OBMA, KARI L.; RAJAMANICKAM, VICTORIA; WAN, YIN; HEISE, CHARLES P.; FOLEY, EUGENE F.; HARMS, BRUCE; KENNEDY, GREGORY D.

    2012-01-01

    BACKGROUND & AIMS Observational studies and small randomized controlled trials have shown that the use of laparoscopy in colon resection for diverticular disease is feasible and results in fewer complications. We analyzed data from a large, prospectively maintained, multicenter database (National Surgical Quality Initiative Program) to determine whether the use of laparoscopy in the elective treatment of diverticular disease decreases rates of complications compared with open surgery, independent of preoperative comorbid factors. METHODS The analysis included data from 6970 patients who underwent elective surgeries for diverticular disease from 2005 to 2008. Patients with diverticular disease were identified by International Classification of Diseases, 9th revision codes and then categorized into open or laparoscopic groups based on Current Procedural Terminology codes. Preoperative, intraoperative, and postoperative data were analyzed to determine factors associated with increased risk for postoperative complications. RESULTS Data were analyzed from 3468 patients who underwent open surgery and 3502 patients who underwent laparoscopic procedures. After correcting for probability of morbidity, American Society of Anesthesiology class, and ostomy creation, overall complications (including superficial surgical site infections, deep incisional surgical site infections, sepsis, and septic shock) occurred with significantly lower incidence among patients who underwent laparoscopic procedures compared with those who received open operations. CONCLUSIONS The use of laparoscopy for treating diverticular disease, in the absence of absolute contraindications, results in fewer postoperative complications compared with open surgery. PMID:20193685

  9. Application of artificial tactile sensing approach in kidney-stone-removal laparoscopy.

    Science.gov (United States)

    Afshari, Elnaz; Najarian, Siamak; Simforoosh, Nasser

    2010-01-01

    Artificial tactile sensing is a novel method for obtaining different characteristics of a hard object embedded in a soft tissue. In this regard, artificial palpation is one of the most valuable achievements of artificial tactile sensing that can be used in various fields of medicine and more specifically in surgery. In this study, considering the present problems and limitations in kidney-stone-removal laparoscopy, a new application will be presented for artificial tactile sensing approach. Having imitated surgeon's palpation during open surgery and modeled it conceptually, indications of stone existence that appear on the surface of kidney (due to exerting mechanical load) were determined. A number of different cases were created and solved by the software. Using stress distribution contours and stress graphs, it is illustrated that the created stress patterns on the surface of kidney not only show the existence of stone inside, but also its exact location. In fact, the reliability and accuracy of artificial tactile sensing method in detection of kidney stone during laparoscopy is demonstrated by means of finite element analysis. Also, in this paper, the functional principles of tactile system capable of determining the exact location of stone during laparoscopy will be presented.

  10. Laparoscopy vs robotics in surgical management of endometrial cancer: comparison of intraoperative and postoperative complications.

    Science.gov (United States)

    Seror, Julien; Bats, Anne-Sophie; Huchon, Cyrille; Bensaïd, Chérazade; Douay-Hauser, Nathalie; Lécuru, Fabrice

    2014-01-01

    To compare the rates of intraoperative and postoperative complications of robotic surgery and laparoscopy in the surgical treatment of endometrial cancer. Unicentric retrospective study (Canadian Task Force classification II-2). Tertiary teaching hospital. The study was performed from January 2002 to December 2011 and included patients with endometrial cancer who underwent laparoscopic or robotically assisted laparoscopic surgical treatment. Data collected included preoperative data, tumor characteristics, intraoperative data (route of surgery, surgical procedures, and complications), and postoperative data (early and late complications according to the Clavien-Dindo classification, and length of hospital stay). Morbidity was compared between the 2 groups. The study included 146 patients, of whom 106 underwent laparoscopy and 40 underwent robotically assisted surgery. The 2 groups were comparable in terms of demographic and preoperative data. Intraoperative complications occurred in 9.4% of patients who underwent laparoscopy and in none who underwent robotically assisted surgery (p = .06). There was no difference between the 2 groups in terms of postoperative events. Robotically assisted surgery is not associated with a significant difference in intraoperative and postoperative complications, even when there were no intraoperative complications of robotically assisted surgery. Copyright © 2014 AAGL. Published by Elsevier Inc. All rights reserved.

  11. Modification of hemiplegic compensatory gait pattern by symmetry-based motion controller of HAL.

    Science.gov (United States)

    Kawamoto, Hiroaki; Kadone, Hideki; Sakurai, Takeru; Sankai, Yoshiyuki

    2015-01-01

    As one of several characteristics of hemiplegic patients after stroke, compensatory gait caused by affected limb is often seen. The purpose of this research is to apply a symmetry-based controller of a wearable type lower limb robot, Hybrid Assistive Limb (HAL) to hemiplegic patients with compensatory gait, and to investigate improvement of gait symmetry. The controller is designed respectively for swing phase and support phase according to characteristics of hemiplegic gait pattern. The controller during swing phase stores the motion of the unaffected limb and then provides motion support on the affected limb during the subsequent swing using the stored pattern to realize symmetric gait based on spontaneous limb swing. Moreover, the controller during support phase provides motion to extend hip and knee joints to support wearer's body. Clinical tests were conducted in order to assess the modification of gait symmetry. Our case study involved participation of one chronic stroke patient who performs abnormally-compensatory gait for both of the affected and unaffected limbs. As a result, the patient's gait symmetry was improved by providing motion support during the swing phase on the affected side and motion constraint during the support phase on the unaffected side. The study showed promising basis for the effectiveness of the controller for the future clinical study.

  12. The HAL 9000 Space Operating System Real-Time Planning Engine Design and Operations Requirements

    Science.gov (United States)

    Stetson, Howard; Watson, Michael D.; Shaughnessy, Ray

    2012-01-01

    In support of future deep space manned missions, an autonomous/automated vehicle, providing crew autonomy and an autonomous response planning system, will be required due to the light time delays in communication. Vehicle capabilities as a whole must provide for tactical response to vehicle system failures and space environmental effects induced failures, for risk mitigation of permanent loss of communication with Earth, and for assured crew return capabilities. The complexity of human rated space systems and the limited crew sizes and crew skills mix drive the need for a robust autonomous capability on-board the vehicle. The HAL 9000 Space Operating System[2] designed for such missions and space craft includes the first distributed real-time planning / re-planning system. This paper will detail the software architecture of the multiple planning engine system, and the interface design for plan changes, approval and implementation that is performed autonomously. Operations scenarios will be defined for analysis of the planning engines operations and its requirements for nominal / off nominal activities. An assessment of the distributed realtime re-planning system, in the defined operations environment, will be provided as well as findings as it pertains to the vehicle, crew, and mission control requirements needed for implementation.

  13. Metodologi Hukum Islam ‘Abd al-Halîm Mahmûd

    Directory of Open Access Journals (Sweden)

    M. Lathoif Ghozali

    2015-09-01

    Full Text Available This article discusses the concept of ijtihâd (legal reasoning and the typology of legal thought of ‘Abd al-Halîm Mahmûd. According to Mahmûd, ijtihad is devoting all abilities of a mujtahid to arrive at the essence and substance of a problem intended by the Prophet Muhammad. This definition is supported by the division of ijtihâd into two: ijtihâd istinbâtî, the object of which is the texts of the Qur’ân or the Sunnah, and ijtihâd tatbîqî, the object of which is legal problems of the time. Mahmud maintains that a mujtahid should meet certain qualifications such as the abilities of understanding Arabic language, memorizing the Qur’ân, understanding asbâb al-nuzûl (causes of revelation, memorizing the Traditions of the Prophet related to legal matters, and the brilliance in making legal reasoning and conclusions. Mahmûd belongs to moderate group that agrees with the formalization of private laws, while public laws in his view serve only as materials for national laws. Mahmûd also gives an emphasis on the integration between nass (text and maqâsid al-sharî‘ah (the objectives of law.

  14. Development of an assist controller with robot suit HAL for hemiplegic patients using motion data on the unaffected side.

    Science.gov (United States)

    Kawamoto, Hiroaki; Kandone, Hideki; Sakurai, Takeru; Ariyasu, Ryohei; Ueno, Yukiko; Eguchi, Kiyoshi; Sankai, Yoshiyuki

    2014-01-01

    Among several characteristics seen in gait of hemiplegic patients after stroke, symmetry is known to be an indicator of the degree of impairment of walking ability. This paper proposes a control method for a wearable type lower limb motion assist robot to realize spontaneous symmetric gait for these individuals. This control method stores the motion of the unaffected limb during swing and then provides motion support on the affected limb during the subsequent swing using the stored pattern to realize symmetric gait based on spontaneous limb swing. This method is implemented on the robot suit HAL (Hybrid Assistive Limbs). Clinical tests were conducted in order to assess the feasibility of the control method. Our case study involved participation of one chronic stroke patient who was not able to flex his right knee. As a result, the walking support for hemiplegic leg provided by the HAL improved the subject's gait symmetry. The feasibility study showed promising basis for the future clinical study.

  15. Undersøgelse af udviklingen i maksimale vandstande i den østligste del af Limfjorden Aalborg – Hals

    DEFF Research Database (Denmark)

    Burcharth, Hans Falk; Røge, Mads Sønderstrup

    Udviklingen i maksimalvandstande i den veslige del af Limfjorden har påkaldt sig stor interesse i forbindelse med diskussionen om stigende oversvømmelsesfrekvens relateret til en eventuel klimaændring. Formålet med nærværende undersøgelse er at belyse udviklingen i maksimalvandstande i den østlig...... østligste del af Limfjorden på strækningen fra Aalborg til Hals, en strækning hvor der er lavtliggende områder på begge sider af fjorden. Målinger af højvandstande i Aalborg er foretaget siden 1944 og i Hals siden april 2002....

  16. Association of Rare Loss-Of-Function Alleles in HAL, Serum Histidine: Levels and Incident Coronary Heart Disease.

    Science.gov (United States)

    Yu, Bing; Li, Alexander H; Muzny, Donna; Veeraraghavan, Narayanan; de Vries, Paul S; Bis, Joshua C; Musani, Solomon K; Alexander, Danny; Morrison, Alanna C; Franco, Oscar H; Uitterlinden, André; Hofman, Albert; Dehghan, Abbas; Wilson, James G; Psaty, Bruce M; Gibbs, Richard; Wei, Peng; Boerwinkle, Eric

    2015-04-01

    Histidine is a semiessential amino acid with antioxidant and anti-inflammatory properties. Few data are available on the associations between genetic variants, histidine levels, and incident coronary heart disease (CHD) in a population-based sample. By conducting whole exome sequencing on 1152 African Americans in the Atherosclerosis Risk in Communities (ARIC) study and focusing on loss-of-function (LoF) variants, we identified 3 novel rare LoF variants in HAL, a gene that encodes histidine ammonia-lyase in the first step of histidine catabolism. These LoF variants had large effects on blood histidine levels (β=0.26; P=1.2×10(-13)). The positive association with histidine levels was replicated by genotyping an independent sample of 718 ARIC African Americans (minor allele frequency=1%; P=1.2×10(-4)). In addition, high blood histidine levels were associated with reduced risk of developing incident CHD with an average of 21.5 years of follow-up among African Americans (hazard ratio=0.18; P=1.9×10(-4)). This finding was validated in an independent sample of European Americans from the Framingham Heart Study (FHS) Offspring Cohort. However, LoF variants in HAL were not directly significantly associated with incident CHD after meta-analyzing results from the CHARGE Consortium. Three LoF mutations in HAL were associated with increased histidine levels, which in turn were shown to be inversely related to the risk of CHD among both African Americans and European Americans. Future investigations on the association between HAL gene variation and CHD are warranted. © 2015 American Heart Association, Inc.

  17. Sobre monstros e imaginação na sociedade do espetáculo, por Hal Hartley

    OpenAIRE

    Rodrigues, Ângela Lamas

    2013-01-01

    Based on the Frankensteinian monster, whose predicates mirrors the contradictions of industrial capitalism, the excesses of science and modernity’s fractured individual’s psyche, this work purports to analyze the character of the Monster in the movie No such thing (2001), by American director Hal Hartley. The article focuses, particularly, on the discussion, suggested in the movie, about the place of the monster in a historical moment in which the media, the spectacle, and consumerism leave l...

  18. Transcription factors Asg1p and Hal9p regulate pH homeostasis in Candida glabrata

    Directory of Open Access Journals (Sweden)

    Jing eWu

    2015-08-01

    Full Text Available Candida glabrata is an important microorganism used in commercial fermentation to produce pyruvate, but very little is known about its mechanisms for surviving acid stress in culture. In this study, it was shown that transcription factors Asg1p and Hal9p play essential roles in C. glabrata in the tolerance of acid stress, as the deletion of CgASG1 or CgHAL9 resulted in the inability to survive in an acidic environment. Cgasg1 and Cghal9 mutant strains are unable to maintain pH homeostasis, as evidenced by a decrease in intracellular pH and an increase in reactive oxygen species production, which results in metabolic disorders. The results showed that intracellular acidification was partly due to the diminished activity of the plasma membrane proton pump, CgPma1p. In addition, transcriptome sequencing revealed that Cgasg1 and Cghal9 mutant strains displayed a variety of changes in gene expression under acidic conditions, including genes in the MAPK signaling pathway, plasma membrane or cell wall organization, trehalose accumulation, and the RIM101 signaling pathway. Lastly, quantitative reverse-transcribed PCR and cellular localization showed that CgAsg1p and CgHal9p played independent roles in response to acid stress.

  19. Higher-order semantic structures in an African Grey parrot's vocalizations: evidence from the hyperspace analog to language (HAL) model.

    Science.gov (United States)

    Kaufman, Allison B; Colbert-White, Erin N; Burgess, Curt

    2013-09-01

    Previous research has described the significant role that social interaction plays in both the acquisition and use of speech by parrots. The current study analyzed the speech of one home-raised African Grey parrot (Psittacus erithacus erithacus) across three different social contexts: owner interacting with parrot in the same room, owner and parrot interacting out of view in adjacent rooms, and parrot home alone. The purpose was to determine the extent to which the subject's speech reflected an understanding of the contextual substitutability (e.g., the word street can be substituted in context for the word road) of the vocalizations that comprised the units in her repertoire (i.e., global co-occurrence of repertoire units; Burgess in Behav Res Methods Instrum Comput 30:188-198, 1998; Lund and Burgess in Behav Res Methods Instrum Comput 28:203-208, 1996). This was accomplished via the human language model hyperspace analog to language (HAL). HAL is contextually driven and bootstraps language "rules" from input without human intervention. Because HAL does not require human tutelage, it provided an objective measure to empirically examine the parrot's vocalizations. Results indicated that the subject's vocalization patterns did contain global co-occurrence. The presence of this quality in this nonhuman's speech may be strongly indicative of higher-order cognitive skills.

  20. Hemorrhoidal artery ligation (HAL) and rectoanal repair (RAR): retrospective analysis of 408 patients in a single center.

    Science.gov (United States)

    Scheyer, M; Antonietti, E; Rollinger, G; Lancee, S; Pokorny, H

    2015-01-01

    Rectoanal repair (RAR), which combines doppler-guided hemorrhoidal artery ligation (HAL) and mucopexy via lifting of the hemorrhoidal prolapse, offers a minimally invasive alternative to conventional hemorrhoidectomy. Patients with grade II hemorrhoids were treated with HAL, and patients with grade III and IV hemorrhoids were treated with the RAR procedure by two surgeons. Postoperative follow-up was performed clinically and by proctoscopy after 8 weeks routinely, and long-term follow-up was performed using a standardized postal questionnaire. The overall complication rate was 29% (n = 118). After short-term follow-up, 26% (n = 106) of patients reported recurrent or persistent prolapsing piles, while 21% (n = 86) of patients had recurrent bleeding. After long-term follow-up, 24% (n = 98) of patients reported prolapsing piles, 3% (n = 12) bleeding, 3% (n = 12) pruritus, and 2% (n = 8) anal pain, while 20% (n = 82) complained of persistent mixed symptoms. HAL and RAR provide prolonged relief for patients with hemorrhoidal disease whose main symptoms are bleeding, pruritus and pain but not for patients with prolapse as an initial indication.

  1. J-pouch vs. side-to-end anastomosis after hand-assisted laparoscopic low anterior resection for rectal cancer: A prospective randomized trial on short and long term outcomes including life quality and functional results.

    Science.gov (United States)

    Okkabaz, Nuri; Haksal, Mustafa; Atici, Ali Emre; Altuntas, Yunus Emre; Gundogan, Ersin; Gezen, Fazli Cem; Oncel, Mustafa

    2017-11-01

    To analyze the outcomes of j-pouch and side-to-end anastomosis in rectal cancer patients treated with laparoscopic hand-assisted low anterior resection. Prospective trial on cases randomized to have a colonic j-pouch or a side-to-end anastomosis after low anterior resection. Demographics, characteristics of disease and treatment, perioperative results, and functional outcomes and life quality were compared between the groups. Seventy four patients were randomized. Reservoir creation was withdrawn in 17 (23%) patients, mostly related to reach problem (n = 11, 64.7%). Anastomotic leakage rate was significantly higher in j-pouch group (8 [27.6%] vs. 0, p = 0.004). Stoma closure could not be achieved in 16 (28.1%) patients. Life quality and functional outcomes, measured 4, 8 and 12 months after the stoma reversal, were similar. Colonic j-pouch and side-to-end anastomosis are similar regarding perioperative measures including operation time, rates of postoperative complications, reoperation and 30-day mortality, and hospitalization period except anastomotic leak rate, which is higher in j-pouch group. Postoperative aspects are not different in patients receiving either technique including functional outcomes and life quality for the first year after stoma closure. In our opinion, both techniques may be preferred during the daily practice while performing laparoscopic surgery; but surgeons may be aware of a possibly higher anastomotic leak rate in case of a j-pouch. Copyright © 2017 IJS Publishing Group Ltd. Published by Elsevier Ltd. All rights reserved.

  2. Results of the surgical treatment of non-advanced megaesophagus using Heller-Pinotti's surgery: Laparotomy vs. Laparoscopy

    Directory of Open Access Journals (Sweden)

    Luiz Roberto Lopes

    2011-01-01

    Full Text Available INTRODUCTION: Dysphagia is the important symptom in achalasia, and surgery is the most common treatment. The Heller-Pinotti technique is the method preferred by Brazilian surgeons. For many years, this technique was performed by laparotomy, and now the laparoscopic method has been introduced. The objective was to evaluate the immediate and long-term results of patients submitted to surgery by either laparotomy or laparoscopy. MATERIALS AND METHODS: A total of 67 patients submitted to surgery between 1994 and 2001 with at least 5 years of follow-up were evaluated retrospectively and divided into two groups: laparotomy (41 patients and laparoscopy (26 patients. Chagas was the etiology in 76.12% of cases. Dysphagia was evaluated according to the classification defined by Saeed et al. RESULTS: There were no cases of conversion to open surgery. The mean duration of hospitalization was 3.32 days for laparotomy and 2.54 days for laparoscopy (p<0.05. An improvement in dysphagia occurred with both groups reporting good or excellent results (laparotomy: 73.17% and laparoscopy: 73.08%. Mean duration of follow-up was 8 years. CONCLUSIONS: There was no difference between the two groups with respect to relief from dysphagia, thereby confirming the safety and effectiveness of the Heller-Pinotti technique, which can be performed by laparotomy or laparoscopy, depending on the surgeon's experience.

  3. The efficacy of virtual reality simulation training in laparoscopy: a systematic review of randomized trials.

    Science.gov (United States)

    Larsen, Christian Rifbjerg; Oestergaard, Jeanett; Ottesen, Bent S; Soerensen, Jette Led

    2012-09-01

    Virtual reality (VR) simulators for surgical training might possess the properties needed for basic training in laparoscopy. Evidence for training efficacy of VR has been investigated by research of varying quality over the past decade. To review randomized controlled trials regarding VR training efficacy compared with traditional or no training, with outcome measured as surgical performance in humans or animals. In June 2011 Medline, Embase, the Cochrane Central Register of Controlled Trials, Web of Science and Google Scholar were searched using the following medical subject headings (MeSh) terms: Laparoscopy/standards, Computing methodologies, Programmed instruction, Surgical procedures, Operative, and the following free text terms: Virtual real* OR simulat* AND Laparoscop* OR train* Controlled trials. All randomized controlled trials investigating the effect of VR training in laparoscopy, with outcome measured as surgical performance. A total of 98 studies were screened, 26 selected and 12 included, with a total of 241 participants. Operation time was reduced by 17-50% by VR training, depending on simulator type and training principles. Proficiency-based training appeared superior to training based on fixed time or fixed numbers of repetition. Simulators offering training for complete operative procedures came out as more efficient than simulators offering only basic skills training. Skills in laparoscopic surgery can be increased by proficiency-based procedural VR simulator training. There is substantial evidence (grade IA - IIB) to support the use of VR simulators in laparoscopic training. © 2012 The Authors  Acta Obstetricia et Gynecologica Scandinavica© 2012 Nordic Federation of Societies of Obstetrics and Gynecology.

  4. Power Doppler flow mapping and four-dimensional ultrasound for evaluating tubal patency compared with laparoscopy.

    Science.gov (United States)

    Soliman, Amr A; Shaalan, Waleed; Abdel-Dayem, Tamer; Awad, Elsayed Elbadawy; Elkassar, Yasser; Lüdders, Dörte; Malik, Eduard; Sallam, Hassan N

    2015-12-01

    To study the accuracy of four-dimensional (4D) ultrasound and power Doppler flow mapping in detecting tubal patency in women with sub-/infertility, and compare it with laparoscopy and chromopertubation. A prospective study. The study was performed in the outpatient clinic and infertility unit of a university hospital. The sonographic team and laparoscopic team were blinded to the results of each other. Women aged younger than 43 years seeking medical advice due to primary or secondary infertility and who planned to have a diagnostic laparoscopy performed, were recruited to the study after signing an informed consent. All of the recruited patients had power Doppler flow mapping and 4D hysterosalpingo-sonography by injecting sterile saline into the fallopian tubes 1 day before surgery. Registering Doppler signals, while using power Doppler, both at the tubal ostia and fimbrial end and the ability to demonstrate the course of the tube especially the isthmus and fimbrial end, while using 4D mode, was considered a patent tube. Out of 50 recruited patients, 33 women had bilateral patent tubes and five had unilateral patent tubes as shown by chromopertubation during diagnostic laparoscopy. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy for two-dimensional power Doppler hysterosalpingography were 94.4%, 100%, 100%, 89.2%, and 96.2%, respectively and for 4D ultrasound were 70.4%, 100%, 100%, 70.4%, and 82.6%, respectively. Four-dimensional saline hysterosalpingography has acceptable accuracy in detecting tubal patency, but is surpassed by power Doppler saline hysterosalpingography. Power Doppler saline hysterosalpingography could be incorporated into the routine sub-/infertility workup. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

  5. Management of Peritonitis After Minimally Invasive Colorectal Surgery: Can We Stick to Laparoscopy?

    Science.gov (United States)

    Marano, Alessandra; Giuffrida, Maria Carmela; Giraudo, Giorgio; Pellegrino, Luca; Borghi, Felice

    2017-04-01

    Although laparoscopy is becoming the standard of care for the treatment of colorectal disease, its application in case of postoperative peritonitis is still not widespread. The objective of this article is to evaluate the role of laparoscopy in the management of postoperative peritonitis after elective minimally invasive colorectal resection for malignant and benign diseases. Between April 2010 and May 2016, 536 patients received primary minimally invasive colorectal surgery at our Department. Among this series, we carried out a retrospective study of those patients who, having developed signs of peritonitis, were treated with a laparoscopic reintervention. Patient demographics, type of complication and of the main relaparoscopic treatment, and main outcomes of reoperation were recorded. A total of 20 patients (3.7%) underwent relaparoscopy for the management of postoperative peritonitis, of which exact causes were detected by laparoscopy in 75% as follows: anastomotic leakage (n = 8, 40%), colonic ischemia (n = 2, 10%), iatrogenic bowel tear (n = 4, 20%), and other (n = 1, 5%). The median time between operations was 3.5 days (range, 2-8). The laparoscopic reintervention was tailored case by case and ranged from lavage and drainage to redo anastomosis with ostomy fashioning. Conversion rate was 10% and overall morbidity was 50%. No cases required additional surgery and 30-day mortality was nil. Three patients (15%) were admitted to intensive care unit for 24-hour surveillance. Our experience suggests that in experienced hands and in hemodynamically stable patients, a prompt laparoscopic reoperation appears as an accurate diagnostic tool and an effective and safe option for the treatment of postoperative peritonitis after primary colorectal minimally invasive surgery.

  6. The role of laparoscopy in the multimodality treatment of colorectal cancer.

    Science.gov (United States)

    Hartley, J E; Monson, J R T

    2002-10-01

    Ten years after the first reports of laparoscopic techniques in colorectal surgery the precise role for these approaches in future colorectal practice as still to be defined. However, it seems most unlikely that the application is going to disappear. Laparoscopic colectomy is undoubtedly a complex. time-consuming procedure and it is clear that the technique is intolerant of difficult cases and will likely remain thus. Therefore. the potential advantages of laparoscopy do not as yet appear to be attainable across the board in colorectal resection. Such generalized advantage may, however, be tantalizingly close. Although many studies have failed to show major benefits for laparoscopy in terms of postoperative recovery, it must be remembered that most of these have been of insufficient statistical power to settle the issue. What is clear to all involved in the field is that very many patients do gain major benefit from the minimally invasive approach. The challenge for the future lies in developing the technology to such a point that these benefits for patients are more reproducible. The requirement for a significant abdominal incision to deliver an intact specimen represents a significant hurdle in this regard. The importance of pathological staging for colorectal cancer at present mandates retrieval of an intact specimen. It is of course possible that radiological staging may develop to such a point that surgeons need only remove the lesion with minimal attention to lymphadenectomy. Alternatively, new adjuvant therapies may arrive that, by virtue of increased efficacy and low side-effect profiles, may be applicable to all but the earliest lesions. Finally, increasing health awareness and application of screening programs may lead to a preponderance of large polyps and preinvasive lesions for which a more limited resection may be appropriate. Obviously these scenarios remain almost entirely speculative. However, the trend towards less invasive local therapy for

  7. Death during laparoscopy: can 1 gas push out another? Danger of argon electrocoagulation.

    Science.gov (United States)

    Sezeur, Alain; Partensky, Christian; Chipponi, Jacques; Duron, Jean-Jacques

    2008-08-01

    We report the death of a young man during a laparoscopic partial splenectomy performed with an argon plasma coagulator to remove a benign cyst. The report analyzes the very particular mechanism of a gas embolism, which caused death here. This analysis leads us to recommend a close attention on the use of argon coagulators during laparoscopy. The aim of this article is to draw surgeons' attention to the conclusions of a court-ordered expert assessment intended to elucidate the mechanisms responsible for the death of a 20-year-old man during a laparoscopic partial splenectomy performed with an argon plasma coagulator to remove a benign cyst.

  8. Retroperitoneal laparoscopy management for ureteral fibroepithelial polyps causing hydronephrosis in children: a report of five cases.

    Science.gov (United States)

    Dai, L N; Chen, C D; Lin, X K; Wang, Y B; Xia, L G; Liu, P; Chen, X M; Li, Z R

    2015-10-01

    Hydronephrosis is a common disease in children and may be caused by ureteral fibroepithelial polyps (UFP). Ureteral fibroepithelial polyps are rare in children and are difficult to precisely diagnose before surgery. Surgical treatment for symptomatic UFP is recommended. At the present institution, retroperitoneal laparoscopy has been used to treat five boys with UFP since 2006. To highlight the significance of UFP as an etiological factor of hydronephrosis in children and evaluate the applicative value of retroperitoneal laparoscopy in the treatment of children with UFP. Between 2006 and 2013 five boys underwent retroperitoneal laparoscopy at the present institution. They were identified with UFP by review of the clinical database. Detailed data were collected, including: radiographic studies, gross anatomical pathology, and pathology and radiology reports. All boys had been followed up at least every 6 months. All of the boys were aged between 7 and 16 years (mean 9.8 years). The main symptoms were flank pain (all five) and hematuria (three). Radiographic examination showed that all of the boys presented with incomplete ureteral obstruction and hydronephrosis. The ureteral fibroepithelial polyps were located near the left UPJ or the left proximal ureter. All of the boys had the UFP removed: three underwent retroperitoneal laparoscopic dismembered Anderson-Hynes pyeloplasty and polypectomy, and two had retroperitoneal laparoscopic ureteral anastomosis. These polyps were all on the left side and between 15 and 35 mm in length (mean 22 mm) (Figure). All of the boys recovered well and were discharged from hospital. The postoperative histological report confirmed that the specimens were UFP. Hydronephrosis was periodically assessed by ultrasonography (using the same method as pre-surgical ultrasonography) after surgery. Mean follow-up was 33 months (range 6-58 months) and no complications were found afterwards. Ureteral fibroepithelial polyps are rare but rather

  9. Comparison between hysterosalpingographic findings and lesions observed by laparoscopy and laparotomy

    International Nuclear Information System (INIS)

    Brolin, I.; Lannering, B.; Ortskrankenhaus, Goeteborg

    1980-01-01

    Laparoscopy andor laparotomy had been performed in 91 patients also examined by hysterosalpingography (HSG) during two years. The comparison of the radiological and the operative findings shows, that total occlusion and hydrosalpinx are radiological signs of adhesions in the pelvis. A depot of contrast medium remaining around the fimbriated end of the oviduct is also a sign of adhesions. More than half of the patients with adhesions surrounding the oviducts and/or endometriosis had however normal hysterosalpingograms. Thus, the radiological examination, hysterosalpingography, has a low sensitivity rate concerning pelvic abnormalities. (orig.) [de

  10. Varied Practice in Laparoscopy Training: Beneficial Learning Stimulation or Cognitive Overload?

    Science.gov (United States)

    Spruit, Edward N; Kleijweg, Luca; Band, Guido P H; Hamming, Jaap F

    2016-01-01

    Determining the optimal design for surgical skills training is an ongoing research endeavor. In education literature, varied practice is listed as a positive intervention to improve acquisition of knowledge and motor skills. In the current study we tested the effectiveness of a varied practice intervention during laparoscopy training. Twenty-four trainees (control group) without prior experience received a 3 weeks laparoscopic skills training utilizing four basic and one advanced training task. Twenty-eight trainees (experimental group) received the same training with a random training task schedule, more frequent task switching and inverted viewing conditions on the four basic training tasks, but not the advanced task. Results showed inferior performance of the experimental group on the four basic laparoscopy tasks during training, at the end of training and at a 2 months retention session. We assume the inverted viewing conditions have led to the deterioration of learning in the experimental group because no significant differences were found between groups on the only task that had not been practiced under inverted viewing conditions; the advanced laparoscopic task. Potential moderating effects of inter-task similarity, task complexity, and trainee characteristics are discussed.

  11. Video-assisted laparoscopy for the detection and diagnosis of endometriosis: safety, reliability, and invasiveness

    Directory of Open Access Journals (Sweden)

    Schipper E

    2012-07-01

    Full Text Available Erica Schipper,1 Camran Nezhat21Center for Minimally Invasive and Robotic Surgery, Palo Alto, CA; 2Obstetrics/Gynecology and Surgery, Stanford University Medical Center, Palo Alto, CA, USAAbstract: Endometriosis is a highly enigmatic disease with multiple presentations ranging from infertility to severe pain, often causing significant morbidity. Video-assisted laparoscopy (VALS has now replaced laparotomy as the gold standard for the diagnosis and management of endometriosis. While imaging has a role in the evaluation of some patients, histologic examination is needed for a definitive diagnosis. Laboratory evaluation currently has a minor role in the diagnosis of endometriosis, although studies are underway investigating serum markers, genetic studies, and endometrial sampling. A high index of suspicion is essential to accurately diagnose this complex condition, and a multidisciplinary approach is often indicated. The following review discusses laparoscopic diagnosis of endometriosis from the pre-operative evaluation of patients suspected of having endometriosis to surgical technique for safe and adequate laparoscopic diagnosis of the condition and postsurgical care.Keywords: endometriosis, video-assisted, laparoscopy, diagnosis

  12. Esophageal-gastric anastomosis in radical resection of esophageal cancer under thoracoscopy combined with laparoscopy.

    Science.gov (United States)

    Hao, Zhang; Zhenya, Shen; Lei, Wang

    2014-10-01

    To determine the feasibility of esophagogastric anastomosis in esophageal cancer radical resection under thoracoscopy combined with laparoscopy in terms of complications and operation time. Experimental study. Department of Thoracic Surgery, Affiliated with The First Hospital, Suzhou University, from June 2008 to June 2012. Clinical data of 136 patients operated for esophageal cancer by radical resection under thoracoscopy combined with laparoscopy was analyzed. Eighty one superior and middle segment esophageal carcinoma patients were operated through right thoracoscope, abdominoscope, and neck incision. The esophagogastric anastomosis was completed in the left side of neck by handiwork. Fifty five inferior segment esophageal carcinoma were operated through right thoracoscope, abdominoscope and the esophagogastric anastomosis was completed with stapler in right thoracic cavity through superior belly incision and diaphragmatic hiatus. The operation time and the intra-operative blood loss in patients with intrathoracic mechanical anastomosis was significantly lower than that of cervical anastomosis. Other variables were not significantly different. The practicability of this method of anastomosis that completed with stapler in right thoracic cavity through superior belly incision and diaphragmatic hiatus had been well confirmed.

  13. Esophageal - Gastric Anastomosis in Radical Resection of Esophageal Cancer under Thoracoscopy Combined with Laparoscopy

    International Nuclear Information System (INIS)

    Hao, Z.; Lei, W.; Zhenya, S.

    2014-01-01

    Objective: To determine the feasibility of esophagogastric anastomosis in esophageal cancer radical resection under thoracoscopy combined with laparoscopy in terms of complications and operation time. Study Design: Experimental study. Place and Duration of Study: Department of Thoracic Surgery, Affiliated with The First Hospital, Suzhou University, from June 2008 to June 2012. Methodology: Clinical data of 136 patients operated for esophageal cancer by radical resection under thoracoscopy combined with laparoscopy was analyzed. Eighty one superior and middle segment esophageal carcinoma patients were operated through right thoracoscope, abdominoscope, and neck incision. The esophagogastric anastomosis was completed in the left side of neck by handiwork. Fifty five inferior segment esophageal carcinoma were operated through right thoracoscope, abdominoscope and the esophagogastric anastomosis was completed with stapler in right thoracic cavity through superior belly incision and diaphragmatic hiatus. Results: The operation time and the intra-operative blood loss in patients with intrathoracic mechanical anastomosis was significantly lower than that of cervical anastomosis. Other variables were not significantly different. Conclusion: The practicability of this method of anastomosis that completed with stapler in right thoracic cavity through superior belly incision and diaphragmatic hiatus had been well confirmed. (author)

  14. Varied Practice in Laparoscopy Training: Beneficial Learning Stimulation or Cognitive Overload?

    Directory of Open Access Journals (Sweden)

    Edward N. eSpruit

    2016-05-01

    Full Text Available AbstractDetermining the optimal design for surgical skills training is an ongoing research endeavor. In education literature, varied practice is listed as a positive intervention to improve acquisition of knowledge and motor skills. In the current study we tested the effectiveness of a varied practice intervention during laparoscopy training. 24 trainees (control group without prior experience received a three week laparoscopic skills training utilizing four basic and one advanced training task. 28 trainees (experimental group received the same training with a random training task schedule, more frequent task switching and inverted viewing conditions on the four basic training tasks, but not the advanced task. Results showed inferior performance of the experimental group on the four basic laparoscopy tasks during training, at the end of training and at a two month retention session. We assume the inverted viewing conditions have led to the deterioration of learning in the experimental group because no significant differences were found between groups on the only task that had not been practiced under inverted viewing conditions; the advanced laparoscopic task. Potential moderating effects of inter-task similarity, task complexity and trainee characteristics are discussed.

  15. Laparoscopy-assisted micropercutaneous choledocholithotripsy with holmium laser in a cholecystectomized patient: an initial report.

    Science.gov (United States)

    Gökçen, Kaan; Atabey, Mustafa; Gökçen, Pınar; Gökçe, Gökhan

    2017-12-01

    We present a novel minimally invasive technique, laparoscopy-assisted micropercutaneous choledocholithotripsy, for choledocholithiasis that cannot be treated with other endoscopic techniques. This technique includes standard laparoscopic exploration of the common bile duct, combined with an all-seeing needle and holmium laser lithotripsy. As is known, an all-seeing needle is used in micropercutaneous nephrolithotomy for middle-sized renal stones. In this technique, an all-seeing needle was inserted into the dilatated common bile duct under laparoscopic vision and then a lithotripsy procedure was performed with a holmium laser behind the biliary stent. A cholecystectomized female patient with a 21-mm stone in the common bile duct who previously underwent an unsuccessful endoscopic retrograde cholangiopancreatography procedure was operated on in our service with laparoscopy-assisted micropercutaneous choledocholithotomy without a T-tube. This novel procedure was completed uneventfully and the patient was discharged without any complications. In the future, this procedure will hopefully be a treatment modality in choledocholithiasis that cannot be treated by other minimally invasive techniques.

  16. causes of infertility in females: evaluated by diagnonstic laparoscopy at a tertiary care centre

    International Nuclear Information System (INIS)

    Siraj, A.; Naseer, S.; Khan, S.

    2015-01-01

    Objective: To determine the frequency of various causes of infertility through diagnostic laparoscopy. Study Design: Cross sectional comparative study. Place and Duration of Study: The study was conducted in gynaecology/obstetrics department unit I of Military Hospital Rawalpindi from May 2011 - May 2012. Patients and Methods: A total of 50 patients were recruited in the study through outpatient clinic, 32 out of 50 had primary infertility and 18 had secondary infertility. Diagnostic laparoscopy was performed under general anesthesia and findings were recorded. Result: The mean age of patients was 26.4 years. Out of 50 patients 20 (40%) had polycystic ovaries, 15 (30%) had tubal blockage, 7 (14%) had endometriosis and 2 (4%) had fibroids while 6(12%) were found to have normal pelvis and no pathology was detected. Conclusion: polycystic ovaries was found major cause of infertility in this study group, followed by tubal factor infertility either secondary to pelvic inflammatory disease or otherwise, both these causes are treatable to variable extent and fertility can be resumed if managed properly. (author)

  17. Surgery of the elderly in emergency room mode. Is there a place for laparoscopy?

    Science.gov (United States)

    Michalik, Maciej; Dowgiałło-Wnukiewicz, Natalia; Lech, Paweł; Zacharz, Krzysztof

    2017-06-01

    An important yet difficult problem is qualification for surgery in elderly patients. With age the risk of comorbidities increases - multi-disease syndrome. Elderly patients suffer from frailty syndrome. Many body functions become impaired. All these factors make the elderly patient a major challenge for surgical treatment. Analysis of the possibility of developing the indications and contraindications and the criteria for surgical treatment of the elderly based on our own cases. Discussion whether there is a place for laparoscopy during surgery of the elderly in emergency room (ER) mode. The analysis was performed based on seven cases involving surgical treatment of elderly patients who were admitted to the hospital in emergency room mode. The patients were hospitalized in the General and Minimally Invasive Surgery Clinic in Olsztyn in 2016. Surgical treatment of elderly patients should be planned with multidisciplinary teams. Geriatric surgery centers should be developed to minimize the risk of overzealous treatment and potential complications. Laparoscopy should always be considered in the case of ER procedures or diagnostics. Elderly patients should not be treated as typical adults, but as a separate group of patients requiring special treatment. Due to the existing additional disease in the elderly, the frailty syndrome, any surgical intervention should be minimally invasive. The discussion about therapy should be conducted by a team of specialists from a variety of medical fields.

  18. SmartSIM - a virtual reality simulator for laparoscopy training using a generic physics engine.

    Science.gov (United States)

    Khan, Zohaib Amjad; Kamal, Nabeel; Hameed, Asad; Mahmood, Amama; Zainab, Rida; Sadia, Bushra; Mansoor, Shamyl Bin; Hasan, Osman

    2017-09-01

    Virtual reality (VR) training simulators have started playing a vital role in enhancing surgical skills, such as hand-eye coordination in laparoscopy, and practicing surgical scenarios that cannot be easily created using physical models. We describe a new VR simulator for basic training in laparoscopy, i.e. SmartSIM, which has been developed using a generic open-source physics engine called the simulation open framework architecture (SOFA). This paper describes the systems perspective of SmartSIM including design details of both hardware and software components, while highlighting the critical design decisions. Some of the distinguishing features of SmartSIM include: (i) an easy-to-fabricate custom-built hardware interface; (ii) use of a generic physics engine to facilitate wider accessibility of our work and flexibility in terms of using various graphical modelling algorithms and their implementations; and (iii) an intelligent and smart evaluation mechanism that facilitates unsupervised and independent learning. Copyright © 2016 John Wiley & Sons, Ltd.

  19. Systematic review of robotic surgery in gynecology: robotic techniques compared with laparoscopy and laparotomy.

    Science.gov (United States)

    Gala, Rajiv B; Margulies, Rebecca; Steinberg, Adam; Murphy, Miles; Lukban, James; Jeppson, Peter; Aschkenazi, Sarit; Olivera, Cedric; South, Mary; Lowenstein, Lior; Schaffer, Joseph; Balk, Ethan M; Sung, Vivian

    2014-01-01

    The Society of Gynecologic Surgeons Systematic Review Group performed a systematic review of both randomized and observational studies to compare robotic vs nonrobotic surgical approaches (laparoscopic, abdominal, and vaginal) for treatment of both benign and malignant gynecologic indications to compare surgical and patient-centered outcomes, costs, and adverse events associated with the various surgical approaches. MEDLINE and the Cochrane Central Register of Controlled Trials were searched from inception to May 15, 2012, for English-language studies with terms related to robotic surgery and gynecology. Studies of any design that included at least 30 women who had undergone robotic-assisted laparoscopic gynecologic surgery were included for review. The literature yielded 1213 citations, of which 97 full-text articles were reviewed. Forty-four studies (30 comparative and 14 noncomparative) met eligibility criteria. Study data were extracted into structured electronic forms and reconciled by a second, independent reviewer. Our analysis revealed that, compared with open surgery, robotic surgery consistently confers shorter hospital stay. The proficiency plateau seems to be lower for robotic surgery than for conventional laparoscopy. Of the various gynecologic applications, there seems to be evidence that renders robotic techniques advantageous over traditional open surgery for management of endometrial cancer. However, insofar as superiority, conflicting data are obtained when comparing robotics vs laparoscopic techniques. Therefore, the specific method of minimally invasive surgery, whether conventional laparoscopy or robotic surgery, should be tailored to patient selection, surgeon ability, and equipment availability. Copyright © 2014 AAGL. Published by Elsevier Inc. All rights reserved.

  20. Diagnostic Laparoscopy

    Science.gov (United States)

    ... a laparoscope. Most patients feel a short-lived “bee sting” that lasts a second or two. Small ... procedure was performed. You should have nothing to eat or drink for a set time period before ...

  1. Pelvic laparoscopy

    Science.gov (United States)

    ... does not go away Nausea and vomiting Severe abdominal pain ... Kretser DM, et al, eds. Endocrinology: Adult and Pediatric . 7th ed. ... pain in women of childbearing age. Cochrane Database Syst ...

  2. The hybrid assisted limb (HAL) for Care Support, a motion assisting robot providing exoskeletal lumbar support, can potentially reduce lumbar load in repetitive snow-shoveling movements.

    Science.gov (United States)

    Miura, Kousei; Kadone, Hideki; Koda, Masao; Abe, Tetsuya; Endo, Hirooki; Murakami, Hideki; Doita, Minoru; Kumagai, Hiroshi; Nagashima, Katsuya; Fujii, Kengo; Noguchi, Hiroshi; Funayama, Toru; Kawamoto, Hiroaki; Sankai, Yoshiyuki; Yamazaki, Masashi

    2018-03-01

    An excessive lumbar load with snow-shoveling is a serious problem in snowfall areas. Various exoskeletal robots have been developed to reduce lumbar load in lifting work. However, few studies have reported the attempt of snow-shoveling work using exoskeletal robots. The purpose of the present study was to test the hypothesis that the HAL for Care Support robot would reduce lumbar load in repetitive snow-shoveling movements. Nine healthy male volunteers performed repetitive snow-shoveling movements outdoors in a snowfall area for as long as possible until they were fatigued. The snow-shoveling trial was performed under two conditions: with and without HAL for Care Support. Outcome measures were defined as the lumbar load assessed by the VAS of lumbar fatigue after the snow-shoveling trial and the snow-shoveling performance, including the number of scoops, and snow shoveling time and distance. The mean of VAS of lumbar fatigue, the number of scoops, and snow-shoveling time and distance without HAL for Care Support were 75.4 mm, 50.3, 145 s, and 9.6 m, while with HAL for Care Support were 39.8 mm, 144, 366 s, and 35.4 m. The reduction of lumbar fatigue and improvement of snow-shoveling performance using HAL for Care Support were statistically significant. There was no adverse event during snow-shoveling with HAL for Care Support. In conclusion, the HAL for Care Support can reduce lumbar load in repetitive snow-shoveling movements. Copyright © 2017 Elsevier Ltd. All rights reserved.

  3. Functional Outcome of Neurologic-Controlled HAL-Exoskeletal Neurorehabilitation in Chronic Spinal Cord Injury: A Pilot With One Year Treatment and Variable Treatment Frequency.

    Science.gov (United States)

    Jansen, Oliver; Schildhauer, Thomas A; Meindl, Renate C; Tegenthoff, Martin; Schwenkreis, Peter; Sczesny-Kaiser, Matthias; Grasmücke, Dennis; Fisahn, Christian; Aach, Mirko

    2017-12-01

    Longitudinal prospective study. Whether 1-year HAL-BWSTT of chronic spinal cord injured patients can improve independent ambulated mobility further as a function of training frequency, after an initial 3-month training period. Eight patients with chronic SCI were enrolled. They initially received full standard physical therapy and neurorehabilitation in the acute/subacute posttrauma phase. During this trial, all patients first underwent a daily (5 per week) HAL-BWSTT for 12 weeks. Subsequently, these patients performed a 40-week HAL-BWSTT with a training session frequency of either 1 or 3 to 5 sessions per week. The patients' functional status including HAL-associated treadmill-walking time, -distance, and -speed with additional analysis of gait pattern, and their independent (without wearing the robot suit) functional mobility improvements, were assessed using the 10-Meter-Walk Test (10MWT), Timed-Up-and-Go Test (TUG) and 6-Minute-Walk Test (6MinWT) on admission, at 6 weeks, 12 weeks, and 1 year after enrollment. The data were analyzed separately for the 2 training frequency subgroups after the initial 12-week training period, which was identical in both groups. During the 1-year follow-up, HAL-associated walking parameters and independent functional improvements were maintained in all the patients. This result held irrespective of the training frequency. Long-term 1-year maintenance of HAL-associated treadmill walking parameters and of improved independent walking abilities after initial 12 weeks of daily HAL-BWSTT is possible and depends mainly on the patients' ambulatory status accomplished after initial training period. Subsequent regular weekly training, but not higher frequency training, seems to be sufficient to preserve the improvements accomplished.

  4. The Strain Index and ACGIH TLV for HAL: risk of trigger digit in the WISTAH prospective cohort.

    Science.gov (United States)

    Kapellusch, Jay M; Garg, Arun; Hegmann, Kurt T; Thiese, Matthew S; Malloy, Elizabeth J

    2014-02-01

    The objective of this study was to investigate the association between job physical exposure (JPE) and incidence of flexor tendon entrapment of the digits (FTED). FTED, commonly known as trigger digit, is associated with age, gender, and certain health disorders. Although JPE has been suggested as a risk factor for FTED, there are no prospective cohort studies. A cohort of 516 workers was enrolled from 10 diverse manufacturing facilities and followed monthly for 6 years. Worker demographics, medical history, and symptoms of FTED were assessed. JPE was individually measured using the Strain Index (SI) and American Conference of Governmental Industrial Hygienists (ACGIH) threshold limit value for hand activity level (TLV for HAL). Changes in JPE (assessed quarterly) and symptoms (assessed monthly) were recorded during follow-up. FTED was defined as demonstrated triggering on examination. Point prevalence of FTED at baseline was 3.6%. During follow-up there were 23 incident FTED cases (left and/or right hands). The incident rate for first occurrence of FTED from enrollment was 1.38 per 100 person-years. Risk factors were JPE, age, gender, diabetes mellitus, carpometacarpal osteoarthrosis, and rheumatoid arthritis. In multivariate models, the SI showed strong association with risk of FTED when treated as a continuous variable and marginal association when dichotomized (SI > 6.1). TLV for HAL showed a statistical trend of increasing risk of FTED using the ACGIH limits, but no association as a continuous variable. Both JPE and personal risk factors are associated with FTED development. The SI and TLV for HAL are useful tools for estimating JPE.

  5. Perioperative strategy in colonic surgery; LAparoscopy and/or FAst track multimodal management versus standard care (LAFA trial).

    NARCIS (Netherlands)

    Wind, J.; Hofland, J.; Preckel, B.; Hollman, M.W.; Bossuyt, P.M.M.; Gouma, D.J.; Berge Henegouwen, M.I.; Fuhring, J.W.; Dejong, C.H.C.; Dam, R.M. van; Cuesta, M.A.; Noordhuis, A.; Jong, D. de; Zalingen, E. van; Engel, A.F.; Goei, T.H.; Stoppelaar, I.E. de; Tets, W.F. van; Wagensveld, B.A. van; Swart, A.; Elsen, M.J.L.J. van den; Gerhards, M.F.; Wit, L.Th. De; Siepel, M.A.M.; Geloven, A.A.W. van; Juttmann, J.-W.; Clevers, J.C.; Bemelman, W.A.

    2006-01-01

    BACKGROUND: Recent developments in large bowel surgery are the introduction of laparoscopic surgery and the implementation of multimodal fast track recovery programs. Both focus on a faster recovery and shorter hospital stay.The randomized controlled multicenter LAFA-trial (LAparoscopy and/or FAst

  6. Perioperative strategy in colonic surgery; LAparoscopy and/or FAst track multimodal management versus standard care (LAFA trial)

    NARCIS (Netherlands)

    Wind, Jan; Hofland, Jan; Preckel, Benedikt; Hollmann, Markus W.; Bossuyt, Patrick M. M.; Gouma, Dirk J.; van Berge Henegouwen, Mark I.; Fuhring, Jan Willem; Dejong, Cornelis H. C.; van Dam, Ronald M.; Cuesta, Miguel A.; Noordhuis, Astrid; de Jong, Dick; van Zalingen, Edith; Engel, Alexander F.; Goei, T. Hauwy; de Stoppelaar, I. Erica; van Tets, Willem F.; van Wagensveld, Bart A.; Swart, Annemiek; van den Elsen, Maarten J. L. J.; Gerhards, Michael F.; de Wit, Laurens Th; Siepel, Muriel A. M.; van Geloven, Anna A. W.; Juttmann, Jan-Willem; Clevers, Wilfred; Bemelman, Willem A.

    2006-01-01

    BACKGROUND: Recent developments in large bowel surgery are the introduction of laparoscopic surgery and the implementation of multimodal fast track recovery programs. Both focus on a faster recovery and shorter hospital stay.The randomized controlled multicenter LAFA-trial (LAparoscopy and/or FAst

  7. Evaluation of PET and laparoscopy in STagIng advanced gastric cancer: A multicenter prospective study (PLASTIC-study)

    NARCIS (Netherlands)

    H.J.F. Brenkman (Hylke J.F.); Gertsen, E.C. (E. C.); E. Vegt (Erik); R. van Hillegersberg (Richard); M.I. van Berge Henegouwen; S.S. Gisbertz (Suzanne S.); M. Luyer (Misha); G.A.P. Nieuwenhuijzen (Gerard); J.J.B. van Lanschot (Jan); S.M. Lagarde (Sjoerd); W.O. de Steur (Wobbe O.); H.H. Hartgrink (H.); J.H.M.B. Stoot (Jan); K.W.E. Hulsewé (Karel W.E.); E.J. Spillenaar Bilgen (Ernst Jan); M.J. van Det (Marc J.); E.A. Kouwenhoven (Ewout); D.L. van der Peet (Donald); F. Daams (Freek); J.W. van Sandick (J.); N.C.T. Grieken (Nicole); J. Heisterkamp (Joos); B. van Etten (Boudewijn); J.W. Haveman; J.-P.E.N. Pierie (Jean-Pierre); Jonker, F. (F.); Thijssen, A.Y. (A. Y.); E.J.T. Belt (Eric); P. van Duijvendijk (Peter); Wassenaar, E. (E.); H.W.M. van Laarhoven (Hanneke); Wessels, F.J. (F. J.); N. Haj Mohammad; H.F. van Stel (Henk); G.W.J. Frederix (Geert); P.D. Siersema (Peter); J.P. Ruurda (Jelle)

    2018-01-01

    textabstractBackground: Initial staging of gastric cancer consists of computed tomography (CT) and gastroscopy. In locally advanced (cT3-4) gastric cancer, fluorodeoxyglucose positron emission tomography with CT (FDG-PET/CT or PET) and staging laparoscopy (SL) may have a role in staging, but

  8. Anesthetic management for laparoscopy surgery in a patient with residual coarctation of aorta and mild aortic stenosis

    Directory of Open Access Journals (Sweden)

    Renu Sinha

    2011-01-01

    Full Text Available Perioperative management of patients with congenital heart disease is a challenge for the anesthesiologist. We present successful anesthetic management for diagnostic laparoscopy and cystectomy for tubo-ovarian mass in a case of residual coarctation of the aorta along with bicuspid aortic valve and mild aortic stenosis.

  9. Efficacy evaluation of laparoscopy assisted ultrasound guided radiofrequency ablation in the treatment of hepatocellular carcinoma beneath the diaphragm

    Directory of Open Access Journals (Sweden)

    Song WANG

    2017-06-01

    Full Text Available Objective To explore the feasibility, safety and efficacy of laparoscopy assisted ultrasound guided radiofrequency ablation (RFA in the treatment of hepatocellular carcinoma (HCC beneath the diaphragm. Methods Twenty- three consecutive patients with solitary HCC beneath the diaphragm were treated by laparoscopy assisted ultrasound guided RFA in the Chinese PLA General Hospital from January 2013 to March 2016. We observed the perioperative complications and followed- up long-term effect. Results All the 23 patients successfully underwent laparoscopy assisted ultrasound guided radiofrequency ablation. No serious complications such as massive hemorrhage, biliary fistula and severe pleural effusion, hemopneumothorax occurred in the patients during perioperative period. CT examination 2-3 days after the operation revealed that the tumor was completely covered by the ablation area. Besides, the survival condition was satisfactory during follow-up period of 9-38 months. Conclusion Laparoscopy-assisted ultrasound-guided radiofrequency ablation is effective and safe for HCC beneath the diaphragm. DOI: 10.11855/j.issn.0577-7402.2017.05.16

  10. The Strain Index (SI) and Threshold Limit Value (TLV) for Hand Activity Level (HAL): risk of carpal tunnel syndrome (CTS) in a prospective cohort.

    Science.gov (United States)

    Garg, A; Kapellusch, J; Hegmann, K; Wertsch, J; Merryweather, A; Deckow-Schaefer, G; Malloy, E J

    2012-01-01

    A cohort of 536 workers was enrolled from 10 diverse manufacturing facilities and was followed monthly for six years. Job physical exposures were individually measured. Worker demographics, medical history, psychosocial factors, current musculoskeletal disorders (MSDs) and nerve conduction studies (NCS) were obtained. Point and lifetime prevalence of carpal tunnel syndrome (CTS) at baseline (symptoms + abnormal NCS) were 10.3% and 19.8%. During follow-up, there were 35 new CTS cases (left, right or both hands). Factors predicting development of CTS included: job physical exposure (American conference of governmental industrial hygienists Threshold Limit Value (ACGIH TLV) for Hand Activity Level (HAL) and the Strain Index (SI)), age, BMI, other MSDs, inflammatory arthritis, gardening outside of work and feelings of depression. In the adjusted models, the TLV for HAL and the SI were both significant per unit increase in exposure with hazard ratios (HR) increasing up to a maximum of 5.4 (p = 0.05) and 5.3 (p = 0.03), respectively; however, similar to other reports, both suggested lower risk at higher exposures. Data suggest that the TLV for HAL and the SI are useful metrics for estimating exposure to biomechanical stressors. This study was conducted to determine how well the TLV for HAL and the SI predict risk of CTS using a prospective cohort design with survival analysis. Both the TLV for HAL and the SI were found to predict risk of CTS when adjusted for relevant covariates.

  11. Should laparoscopy and dye test be a first line evaluation for infertile women in southeast Nigeria?

    Science.gov (United States)

    Ikechebelu, J I; Mbamara, S U

    2011-01-01

    Laparoscopy and dye test is an important investigation in the evaluation of infertile women which has been underutilised in our practice. This review is aimed at determining whether the findings of this procedure are substantial enough to make it a first line evaluation for infertile women. A review of the laparoscopic findings in infertile women who presented for evaluation and treatment at a private fertility centre was carried out. A total of 253 day-case laparoscopy and dye test procedures were reviewed, 115 (45.0%) were done for primary infertility, 137 (54.5%) for secondary infertility and 1 (0.4%) for primary amenorrhoea and infertility. The mean period of infertility was 4.5 years with a range of 2-10 years and the women were aged between 19 and 52 years. Analysis of the result showed that 100 (39.5%) women had normal patent tubes while 153 (60.4%) had tubal pathologies like bilateral tubal occlusion in 97 (38.3%) and unilateral tubal occlusion in 56 (22.1%) women. Pelvic adhesion of varying degrees of severity was present in 108 (42.7%) women. Bilateral tubal occlusion was more common in nulliparous women and those aged between 30-39 years. One or both ovaries were normal (functional) in 189 (74.7%) women. Altogether, only 43 (17.0%) women were "normal" (had patent tubes, functional ovary and no pelvic adhesion). Additional pelvic pathology was present in 142 (56.1%) women. The commonest was uterine fibroid (leiomyomata) of various sizes in 100 (39.5%) of the women, followed by ovarian cyst in 56 (22.2%) and endometriosis in 11 (4.4%) women. Other pathologies observed include uterine abnormalities and unruptured ectopic pregnancy. Only 16 (37.2%) of the 43 "normal" women had no additional pelvic pathology. The high prevalence o tuboperitoneal factor and additional pelvic pathology in these infertile women reveal the importance of laparoscopic evaluation. We recommend the use of laparoscopy and dye test as a first line investigation in our environment to

  12. Urinary Tract Injury in Gynecologic Laparoscopy for Benign Indication: A Systematic Review.

    Science.gov (United States)

    Wong, Jacqueline M K; Bortoletto, Pietro; Tolentino, Jocelyn; Jung, Michael J; Milad, Magdy P

    2018-01-01

    To perform a comprehensive literature review of the incidence, location, etiology, timing, management, and long-term sequelae of urinary tract injury in gynecologic laparoscopy for benign indication. A systematic review of PubMed, EMBASE, Cochrane Library, and ClinicalTrials.gov was conducted. Four hundred thirty-three studies were screened for inclusion with 136 full-text articles reviewed. Ninety studies published between 1975 and 2015 met inclusion criteria, representing 140,444 surgeries. Articles reporting the incidence of urinary tract injury in gynecologic laparoscopy for benign indication were included. Exclusion criteria comprised malignancy, surgery by urogynecologists, research not in English, and insufficient data. A total of 458 lower urinary tract injuries were reported with an incidence of 0.33% (95% CI 0.30-0.36). Bladder injury (0.24%, 95% CI 0.22-0.27) was overall three times more frequent than ureteral injury (0.08%, 95% CI 0.07-0.10). Laparoscopic hysterectomy not otherwise specified (1.8%, 95% CI 1.2-2.6) and laparoscopically assisted vaginal hysterectomy (1.0%, 95% CI 0.9-1.2) had the highest rates of injury. Most ureteral injuries resulted from electrosurgery (33.3%, 95% CI 24.3-45.8), whereas most bladder injuries resulted from lysis of adhesions (23.3%, 95% CI 18.7-29.0). Ureteral injuries were most often recognized postoperatively (60%, 95% CI 47-76) and were repaired by open ureteral anastomosis (47.4%, 95% CI 36.3-61.9). In contrast, bladder injuries were most often recognized intraoperatively (85%, 95% CI 75-95) and were repaired by laparoscopic suturing (34.9%, 95% CI 29.2-41.7). The incidence of lower urinary tract injury in gynecologic laparoscopy for benign indication remains low at 0.33%. Bladder injury was three times more common than ureteral injury, although ureteral injuries were more often unrecognized intraoperatively and underwent open surgical repair. These risk estimates can assist gynecologic surgeons in effectively

  13. Evidence for distillation in the formation of HAL and related hibonite inclusions. [from Allende, Dhajala, and Murchison chondrites

    Science.gov (United States)

    Ireland, Trevor R.; Zinner, Ernst K.; Fahey, Albert J.; Esat, Tezer M.

    1992-01-01

    New Ca- and Ti-isotopic analyses of DH-H1, 7-404, and 7-971, and Mg-isotopic analyses on DH-H1 and 7-404 are reported. O-isotopic analyses of HAL, 7-404, 7-971, and a variety of other refractory inclusions from Murchison were made in order to establish the presence or absence of FUN O-isotopic systematics. A higonite-rich residue produced by the evaporation of kaersutite was analyzed for its trace-element and isotopic abundances to see if any of the characteristics of FUN hibonite inclusions can be produced by distillation in the laboratory. These data are then used to evaluate for all four inclusions the HAL-type formation models originally proposed by Allen et al. (1980) and Lee et al. (1980). The four inclusions were found to have very similar chemical and isotopic features. All are characterized by large Ce depletions and very low Mg, Ti, and V concentrations compared to other meteoritic hibonites. All four inclusions have delta(C-48) within error of -5 per mil. Ca-, Ti-, and O-isotopic compositions are fractionated with enrichments of the heavy isotopes, and the Ti-isotopic mass fractionation is inversely correlated with Ti concentration. It is concluded that the inclusions formed primarily as distillation residues in accord with the early conclusions.

  14. Role of Laparoscopy in the Management of Acute Surgical Abdomen Secondary to Phytobezoars.

    Science.gov (United States)

    Sheikh, Abu Baker; Akhtar, Aisha; Nasrullah, Adeel; Haq, Shujaul; Ghazanfar, Haider

    2017-06-17

    A bezoar is a collection of indigestible material found in the alimentary canal, which can cause mechanical obstruction of the gastrointestinal tract. Phytobezoar is a variant composed of mostly plant material and indigestible fiber. Phytobezoar is a rare cause of small bowel obstruction (SBO) and happens more commonly in patients with risk factors predisposing to impaired gastrointestinal motility. We present a rare case of SBO secondary to phytobezoar in a 60-year-old female patient with type 2 diabetes. There was no prior history of any abdominal surgery. The abdominal computed tomography (CT) scan was inconclusive. Laparoscopy was found to be an effective diagnostic and therapeutic procedure in this patient.

  15. Single-port laparoscopy in gynecologic oncology: seven years of experience at a single institution.

    Science.gov (United States)

    Moulton, Laura; Jernigan, Amelia M; Carr, Caitlin; Freeman, Lindsey; Escobar, Pedro F; Michener, Chad M

    2017-11-01

    Single-port laparoscopy has gained popularity within minimally invasive gynecologic surgery for its feasibility, cosmetic outcomes, and safety. However, within gynecologic oncology, there are limited data regarding short-term adverse outcomes and long-term hernia risk in patients undergoing single-port laparoscopic surgery. The objective of the study was to describe short-term outcomes and hernia rates in patients after single-port laparoscopy in a gynecologic oncology practice. A retrospective, single-institution study was performed for patients who underwent single-port laparoscopy from 2009 to 2015. A univariate analysis was performed with χ 2 tests and Student t tests; Kaplan-Meier and Cox proportional hazards determined time to hernia development. A total of 898 patients underwent 908 surgeries with a median follow-up of 37.2 months. The mean age and body mass index were 55.7 years and 29.6 kg/m 2 , respectively. The majority were white (87.9%) and American Society of Anesthesiologists class II/III (95.5%). The majority of patients underwent surgery for adnexal masses (36.9%) and endometrial hyperplasia/cancer (37.3%). Most women underwent hysterectomy (62.7%) and removal of 1 or both fallopian tubes and/or ovaries (86%). Rate of adverse outcomes within 30 days, including reoperation (0.1%), intraoperative injury (1.4%), intensive care unit admission (0.4%), venous thromboembolism (0.3%), and blood transfusion, were low (0.8%). The rate of urinary tract infection was 2.8%; higher body mass index (P = .02), longer operative time (P = .02), smoking (P = .01), hysterectomy (P = .01), and cystoscopy (P = .02) increased the risk. The rate of incisional cellulitis was 3.5%. Increased estimated blood loss (P = .03) and endometrial cancer (P = .02) were independent predictors of incisional cellulitis. The rate for surgical readmissions was 3.4%; higher estimated blood loss (P = .03), longer operative time (P = .02), chemotherapy alone (P = .03), and

  16. Isolated tubal torsion: Successful preoperative diagnosis of five cases using ultrasound and management with laparoscopy

    Directory of Open Access Journals (Sweden)

    Erdem Fadıloğlu

    2017-09-01

    Full Text Available Our aim was to evaluate the presentation and diagnostic evaluation of patients with isolated tubal torsion and to evaluate the surgical approach to these patients. We also aimed to define the ultrasonographic diagnostic criteria. Five patients with isolated tubal torsion who were admitted to our gynecology department between January 2014 and January 2017 were evaluated and included in this study. All cases were diagnosed through ultrasonographic imaging alone. The preoperative findings of the patients were similar to those described in the literature. No further imaging modality was used for diagnosis and all patients were managed with laparoscopy. The clinical findings and ultrasonographic findings were consistent with literature. It may be difficult to preoperatively diagnose isolated tubal torsion, which is a rare clinical entity. Evaluation of these patients by an experienced sonographer and knowledge of the ultrasonographic findings of isolated tubal torsion may have vital preventive measures.

  17. Take-home training in a simulation-based laparoscopy course

    DEFF Research Database (Denmark)

    Thinggaard, Ebbe; Konge, Lars; Bjerrum, Flemming

    2017-01-01

    efficient method of training. Our aim was to investigate how box trainers are used in take-home training to help guide the design of take-home training courses. METHODS: This study was designed using a mixed methods approach. Junior doctors participating in a laparoscopy curriculum, which included...... practising at home on box trainers, were invited. Quantitative data on training patterns was collected from logbooks. Qualitative data on the use of box trainers was retrieved from focus groups and individual interviews. RESULTS: From logbooks, we found that 14 out of 18 junior doctors mixed their training......BACKGROUND: Simulation training can prepare trainees for clinical practice in laparoscopic surgery. Training on box trainers allows for simulation training at home, which studies have shown to be a feasible method of training. However, little research has been conducted into how to make it a more...

  18. Uterine and tubal anatomical abnormalities in infertile women: diagnosis with routine hysterosalpingography prior to selective laparoscopy

    Directory of Open Access Journals (Sweden)

    Mwaffaq Heis

    2011-12-01

    Full Text Available Objective: To assess the findings and usefulness of hysterosalpingography as a routine investigation in the fertility workup prior to selective laparoscopy. Design: Descriptive retrospective study. Setting: A university hospital in the north of Jordan. Subjects: All hysterosalpingographies performed in the period between 1st January and 31 December 2008. Outcome measures: Detection of uterine and fallopian tube abnormalities and their correlation with laparoscopic findings. Results: During the study period, 281 infertile women underwent hysterosalpingography with no post procedural complications. The mean (SD age was 31.5 (5.91 years. Mean (SD duration of infertility was 4 (3.44 years. Infertility was reported as primary and secondary by 119 (42.3 % and 162 (57.6 %, respectively. Altogether 281 patients and 562 tubes were examined. Of those, 402 were patent and 160 occluded. There was only one woman in whom peritubal adhesions were diagnosed. Because of hysterosalpingographically diagnosed tubal occlusion, 46 women (16.4 % were referred for laparoscopy. Eight (17.3% of them were treated with unilateral salpingectomy and 28 (60.8% with bilateral salpingectomy. Salpingolysis was performed for 7 (15.2% women, and 3 (6.7% women had untreatable adhesions. The concordance was 71.7%. The sensitivity of HSG was 80%, the specificity 50%, the negative predictive value 61% and the positive predictive value 71%. Of the total of 281 women, 30 (10.7% conceived within 1 - 11 months after the hysterosalpingography. Conclusions: The very high abnormal predictive value of hysterosalpingography in the diagnosis of tubal occlusion suggests that this procedure could be performed as a screening examination.

  19. Planned second-look laparoscopy in the management of acute mesenteric ischemia

    Science.gov (United States)

    Yanar, Hakan; Taviloglu, Korhan; Ertekin, Cemalettin; Ozcinar, Beyza; Yanar, Fatih; Guloglu, Recep; Kurtoglu, Mehmet

    2007-01-01

    AIM: To investigate the role of second-look laparoscopy in patients with acute mesenteric ischemia (AMI). METHODS: Between January 2000 and November 2005, 71 patients were operated for the treatment of AMI. The indications for a second-look were low flow state, bowel resection and anastomosis or mesenteric thromboembolectomy performed during the first operation. Regardless of the clinical course of patients, the second-look laparoscopic examination was performed 72 h post-operatively at the bed side in the ICU or operating room. RESULTS: The average time of admission to the hospital after the initiation of symptoms was 3 d (range, 5 h-9 d). In 14 patients, laparotomy was performed. In 11 patients, small and/or large bowel necrosis was detected and initial resection and anastomosis were conducted. A low flow state was observed in two patients and superior mesenteric artery thromboembolectomy with small bowel resection was performed in one patient. In 13 patients, a second-look laparoscopic examination revealed normal bowel viability, but in one patient, intestinal necrosis was detected. In two of the patients, a third operation was necessary to correct anastomotic leakage. The overall complication rate was 42.8%, and in-hospital mortality rate was 57.1% (n = 6). CONCLUSION: Second-look laparoscopy is a minimally invasive, technically simple procedure that is performed for diagnostic as well as therapeutic purposes. The simplicity and ease of this method may encourage wider application to benefit more patients. However, the timing of a second-look procedure is unclear particularly in a patient with anastomosis. PMID:17659674

  20. Validation of newly developed physical laparoscopy simulator in transabdominal preperitoneal (TAPP) inguinal hernia repair.

    Science.gov (United States)

    Nishihara, Yuichi; Isobe, Yoh; Kitagawa, Yuko

    2017-12-01

    A realistic simulator for transabdominal preperitoneal (TAPP) inguinal hernia repair would enhance surgeons' training experience before they enter the operating theater. The purpose of this study was to create a novel physical simulator for TAPP inguinal hernia repair and obtain surgeons' opinions regarding its efficacy. Our novel TAPP inguinal hernia repair simulator consists of a physical laparoscopy simulator and a handmade organ replica model. The physical laparoscopy simulator was created by three-dimensional (3D) printing technology, and it represents the trunk of the human body and the bendability of the abdominal wall under pneumoperitoneal pressure. The organ replica model was manually created by assembling materials. The TAPP inguinal hernia repair simulator allows for the performance of all procedures required in TAPP inguinal hernia repair. Fifteen general surgeons performed TAPP inguinal hernia repair using our simulator. Their opinions were scored on a 5-point Likert scale. All participants strongly agreed that the 3D-printed physical simulator and organ replica model were highly useful for TAPP inguinal hernia repair training (median, 5 points) and TAPP inguinal hernia repair education (median, 5 points). They felt that the simulator would be effective for TAPP inguinal hernia repair training before entering the operating theater. All surgeons considered that this simulator should be introduced in the residency curriculum. We successfully created a physical simulator for TAPP inguinal hernia repair training using 3D printing technology and a handmade organ replica model created with inexpensive, readily accessible materials. Preoperative TAPP inguinal hernia repair training using this simulator and organ replica model may be of benefit in the training of all surgeons. All general surgeons involved in the present study felt that this simulator and organ replica model should be used in their residency curriculum.

  1. Laparoscopy-Assisted Billroth I Gastrectomy for Ectopic Pancreas in the Prepyloric Region

    Directory of Open Access Journals (Sweden)

    Yueh-Tsung Lee

    2012-11-01

    Full Text Available Ectopic pancreatic tissue is an uncommon developmental anomaly. The condition mostly occurs in the gastrointestinal tract and is usually asymptomatic. It rarely causes symptoms of inflammation, bleeding and perforation, and has potential for malignant change. Though it is an uncommon condition, cases of ectopic pancreas have been reported worldwide. Preoperative diagnosis of ectopic pancreas is challenging because of its nonspecific symptoms and signs. Owing to the revolution of minimally invasive surgery, submucosal tumors of the stomach can be resected by laparoscopic techniques. We have earlier reported on a case of ectopic pancreas in the stomach treated by robotics-assisted laparoscopic wedge resection. Herein, we report a case of ectopic pancreas in the prepyloric region of the stomach. A 44-year-old female presented with a two-week history of epigastralgia with radiation to the back. She received endoscopy check-up which disclosed a mass in the stomach. By endoscopic findings, a submucosal lesion in the prepyloric region with umbilical folding on the mucosa was identified. The umbilical folding on the mucosa hint the orifice of the duct of ectopic pancreas into the gastric mucosa suggestive of ectopic pancreas. Contrast-enhanced abdominal computed tomography showed a 5 cm cystic mass with heterogeneous content. To sum it up, the patient was diagnosed as ectopic pancreas in the stomach. She underwent laparoscopy-assisted antrectomy with Billroth I anastomosis (excision of the antrum and prepyloric region with reconstruction of gastrointestinal continuity by gastroduodenostomy and had an uneventful hospitalization course. The histopathology of the resected tumor demonstrated ectopic pancreatic tissue in the gastric wall. To the best of our knowledge, excision of gastric ectopic pancreas using laparoscopy-assisted antrectomy with Billroth I anastomosis has never been reported in the literature.

  2. IR-spectroscopic study and electrical properties of glasses in the Ba(PO3)2-Ba(Hal)2 systems

    International Nuclear Information System (INIS)

    Sokolov, I.A.; Tarlakov, Yu.P.; Murin, I.V.; Pronkin, A.A.

    2000-01-01

    Temperature-concentration dependence of electric conductivity of glasses in the systems Ba(PO 3 ) 2 -Ba(Hal) 2 , where Hal = Cl, Br, I, is studied by the method of conductometry, the numbers of iodide-ions transfer are determined and their concentration dependence is found. Data of IR spectroscopy permitted ascertained participation of halide ions in formation of anionic constituent of the glass structure at the expense of bridge bonds formation, as well as formation of structural-chemical units of [(Hal) - Ba 2+ O - POO 2/2 ] type, their dissociation giving rise to formation of halide ions their dissociation giving rise to formation of halide ions taking part in electric current transfer [ru

  3. Risk assessments using the Strain Index and the TLV for HAL, Part II: Multi-task jobs and prevalence of CTS.

    Science.gov (United States)

    Kapellusch, Jay M; Silverstein, Barbara A; Bao, Stephen S; Thiese, Mathew S; Merryweather, Andrew S; Hegmann, Kurt T; Garg, Arun

    2018-02-01

    The Strain Index (SI) and the American Conference of Governmental Industrial Hygienists (ACGIH) threshold limit value for hand activity level (TLV for HAL) have been shown to be associated with prevalence of distal upper-limb musculoskeletal disorders such as carpal tunnel syndrome (CTS). The SI and TLV for HAL disagree on more than half of task exposure classifications. Similarly, time-weighted average (TWA), peak, and typical exposure techniques used to quantity physical exposure from multi-task jobs have shown between-technique agreement ranging from 61% to 93%, depending upon whether the SI or TLV for HAL model was used. This study compared exposure-response relationships between each model-technique combination and prevalence of CTS. Physical exposure data from 1,834 workers (710 with multi-task jobs) were analyzed using the SI and TLV for HAL and the TWA, typical, and peak multi-task job exposure techniques. Additionally, exposure classifications from the SI and TLV for HAL were combined into a single measure and evaluated. Prevalent CTS cases were identified using symptoms and nerve-conduction studies. Mixed effects logistic regression was used to quantify exposure-response relationships between categorized (i.e., low, medium, and high) physical exposure and CTS prevalence for all model-technique combinations, and for multi-task workers, mono-task workers, and all workers combined. Except for TWA TLV for HAL, all model-technique combinations showed monotonic increases in risk of CTS with increased physical exposure. The combined-models approach showed stronger association than the SI or TLV for HAL for multi-task workers. Despite differences in exposure classifications, nearly all model-technique combinations showed exposure-response relationships with prevalence of CTS for the combined sample of mono-task and multi-task workers. Both the TLV for HAL and the SI, with the TWA or typical techniques, appear useful for epidemiological studies and surveillance

  4. Risk assessments using the Strain Index and the TLV for HAL, Part I: Task and multi-task job exposure classifications.

    Science.gov (United States)

    Kapellusch, Jay M; Bao, Stephen S; Silverstein, Barbara A; Merryweather, Andrew S; Thiese, Mathew S; Hegmann, Kurt T; Garg, Arun

    2017-12-01

    The Strain Index (SI) and the American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value for Hand Activity Level (TLV for HAL) use different constituent variables to quantify task physical exposures. Similarly, time-weighted-average (TWA), Peak, and Typical exposure techniques to quantify physical exposure from multi-task jobs make different assumptions about each task's contribution to the whole job exposure. Thus, task and job physical exposure classifications differ depending upon which model and technique are used for quantification. This study examines exposure classification agreement, disagreement, correlation, and magnitude of classification differences between these models and techniques. Data from 710 multi-task job workers performing 3,647 tasks were analyzed using the SI and TLV for HAL models, as well as with the TWA, Typical and Peak job exposure techniques. Physical exposures were classified as low, medium, and high using each model's recommended, or a priori limits. Exposure classification agreement and disagreement between models (SI, TLV for HAL) and between job exposure techniques (TWA, Typical, Peak) were described and analyzed. Regardless of technique, the SI classified more tasks as high exposure than the TLV for HAL, and the TLV for HAL classified more tasks as low exposure. The models agreed on 48.5% of task classifications (kappa = 0.28) with 15.5% of disagreement between low and high exposure categories. Between-technique (i.e., TWA, Typical, Peak) agreement ranged from 61-93% (kappa: 0.16-0.92) depending on whether the SI or TLV for HAL was used. There was disagreement between the SI and TLV for HAL and between the TWA, Typical and Peak techniques. Disagreement creates uncertainty for job design, job analysis, risk assessments, and developing interventions. Task exposure classifications from the SI and TLV for HAL might complement each other. However, TWA, Typical, and Peak job exposure techniques all have

  5. Comparison of H/Al stoichiometry of mineral and organic soils in Brazil Comparação da estequiometria H/Al em solos minerais e orgânicos brasileiros

    Directory of Open Access Journals (Sweden)

    Daniel Vidal Perez

    2009-08-01

    Full Text Available Exchangeable Al has been used as a criterion for the calculation of lime requirement in several Brazilian States. However, the laboratory method with extraction by a 1 mol L-1 KCl solution followed by indirect alkaline titration is not accurate for some Brazilian soils, mainly in the case of soils with high organic matter content. The objective of this study was therefore to evaluate the stoichiometry of H+/Al3+ in KCl soil extracts. The results suggested that organically complexed Al is the main contributor to exchangeable acidity in soils enriched with organic matter. Liming recommendations for organic soils based exclusively on exchangeable Al determined by the NaOH titration method should therefore be revised.A determinação de alumínio trocável é utilizada como critério para cálculo de calagem em vários estados brasileiros. Contudo, a determinação indireta pela titulação com NaOH, após extração com solução de KCl 1 mol L-1, pode não ser adequada para certos tipos de solos brasileiros, notadamente aqueles que apresentem altos teores de carbono orgânico. Dessa forma, o principal objetivo deste trabalho foi avaliar a estequiometria da relação H+/Al3+ em extratos de KCl. Os resultados obtidos sugerem que o Al complexado pela matéria orgânica, em solos orgânicos, é o principal contribuinte para a acidez trocável obtida por titulação. Dessa forma, a recomendação de calagem em solos orgânicos baseado somente na determinação de alumínio trocável por titulação com NaOH deve ser revista.

  6. Complejos de halógeno acetatos de uranio (IV y torio (IV con sulfoxidos y fosfinoxidos

    Directory of Open Access Journals (Sweden)

    Omar Velasquez

    2010-09-01

    Full Text Available En este trabajo se ha Investigado el efecto sterico sobre los modos de coordinación del grupo carboxilato (unidentado, bidentado y puente, en complejos de halógeno acetato con fosfinóxidos y sulfóxidos y la correlación de los resultadoscon el modelo "Cone Angle" e\\ cual ha sido descrito en otra publicación previa' Los complejos preparados son: M(RCO ^ .nL donde n = 4, M = Th ó U, L = Me^SO (dmso, R = CF,3 y L = Me3P0 (tmpo; n = 3, M = Th, L = tmpo, R = CF3 y L = ppo o dmso, R OCCI3; M = U, L = t p p o , R =CF3 y L =dmso, dpso, R = C C l 3 ; n = 2 , M = T h , L = tppo, R = CF3, CHCI^On^ 1, M = Th ó U, L =dmso.

  7. The epigenetic landscape in the course of time: Conrad Hal Waddington's methodological impact on the life sciences.

    Science.gov (United States)

    Baedke, Jan

    2013-12-01

    It seems that the reception of Conrad Hal Waddington's work never really gathered speed in mainstream biology. This paper, offering a transdisciplinary survey of approaches using his epigenetic landscape images, argues that (i) Waddington's legacy is much broader than is usually recognized--it is widespread across the life sciences (e.g. stem cell biology, developmental psychology and cultural anthropology). In addition, I will show that (ii) there exist as yet unrecognized heuristic roles, especially in model building and theory formation, which Waddington's images play within his work. These different methodological facets envisioned by Waddington are used as a natural framework to analyze and classify the manners of usage of epigenetic landscape images in post-Waddingtonian 'landscape approaches'. This evaluation of Waddington's pictorial legacy reveals that there are highly diverse lines of traditions in the life sciences, which are deeply rooted in Waddington's methodological work. Copyright © 2013 Elsevier Ltd. All rights reserved.

  8. Combining of ETHOS Operating Ergonomic Platform, Three-dimensional Laparoscopic Camera, and Radius Surgical System Manipulators Improves Ergonomy in Urologic Laparoscopy: Comparison with Conventional Laparoscopy and da Vinci in a Pelvi Trainer.

    Science.gov (United States)

    Tokas, Theodoros; Gözen, Ali Serdar; Avgeris, Margaritis; Tschada, Alexandra; Fiedler, Marcel; Klein, Jan; Rassweiler, Jens

    2017-10-01

    Posture, vision, and instrumentation limitations are the main predicaments of conventional laparoscopy. To combine the ETHOS surgical chair, the three-dimensional laparoscope, and the Radius Surgical System manipulators, and compare the system with conventional laparoscopy and da Vinci in terms of task completion times and discomfort. Fifteen trainees performed the three main laparoscopic suturing tasks of the Heilbronn training program (IV: simulation of dorsal venous complex suturing; V: circular suturing of tubular structure; and VI: urethrovesical anastomosis) in a pelvi trainer. The tasks were performed conventionally, utilizing the three devices, and robotically. Task completion times were recorded and the surgeon discomfort was evaluated using questionnaires. Task completion times were compared using nonparametric Wilcoxon signed rank test and ergonomic scores were compared using Pearson chi-square test. The use of the full laparoscopic set (ETHOS chair, three-dimensional laparoscopic camera, Radius Surgical System needle holders), resulted in a significant improvement of the completion time of the three tested tasks compared with conventional laparoscopy (psystem nullified heavy discomfort for Tasks IV and V and minimized it (6.7%) for the most demanding Task VI. Especially for Task VI, all trainees gained benefit, by using the system, in terms of task completion times and discomfort. The limited trainee robotic experience and the questionnaire subjectivity could be a potential limitation. The ergonomic laparoscopic system offers significantly improved task completion times and ergonomy than conventional laparoscopy. Furthermore, it demonstrates comparable results to robotic surgery. The study was conducted in a pelvi trainer and no patients were recruited. Copyright © 2016 European Association of Urology. Published by Elsevier B.V. All rights reserved.

  9. SURGICAL TREATMENT OF ADNEXAL MASSES IN PREGNANCY – THE ROLE OF LAPAROSCOPY MANAGEMENT

    Directory of Open Access Journals (Sweden)

    Suzana Peternelj-Marinšek

    2002-04-01

    Full Text Available Background. The aim of this retrospective study was to find the incidence and type of adnexal masses in pregnancy, reliability of preoperative ultrasound examination and the effect of the surgical approach used, duration of pregnancy at the time of surgery, and the effect of emergency or planned surgery on the outcome of pregnancy. The obtained results and the data from literature were to provide the basis of the guidelines for the management of pregnant women with adnexal masses.Methods. In the study we enrolled 42 women, who underwent a surgery in pregnancy for adnexal masses. All surgeries were performed at the Department of Obstetrics and Gynecology in the period 1 January 1993–31 August 2000. The course of pregnancy was followed by 28 February 2001. The data were obtained from the records kept at the Department and from the questionnaire sent to the women. Statistical analysis was done using Chi-square test. Statistical significance was set at P ≤ 0.05.Results. We found the incidence of adnexal masses in pregnancy, requiring surgical treatment, to be 1/1034 deliveries. There were 6 (14.3% borderline malignant and malignant ovarian tumours, the incidence being 1/7239 deliveries. Preoperative ultrasound examination was not reliable enough to differentiate neither between benign and malignant adnexal masses, nor between adnexal masses and leiomyomas. Forty-two surgeries were made, 21 by laparoscopy and 21 by laparotomy. The size of removed tumours ranged between 4 and 30 cm (mean 9.4 cm, the most frequent type was mature cystic teratoma (n = 12. There were no differences in the outcome of pregnancy between the laparoscopy and laparotomy approach, between emergency and planned surgery, and between laparotomy performed by the 23rd and after the 23rd gestational week. Hemorrhagic shock due to heterotopic pregnancy lead to 1 spontaneous abortion. There were 2 preterm deliveries in the 37th week, 2 babies had intrauterine growth retardation

  10. Diagnostic methods in finding out the causes of infertility, results of HSG examination and laparoscopy in infertile women examined at the Gynecological Ward of the City Hospital

    International Nuclear Information System (INIS)

    Kwasniewski, S.; Kukulski, P.; Szymanski, J.; Kwasniewska, A.

    1993-01-01

    The paper presents diagnostic methods and the results of hysterosalpingography (HSG) and laparoscopy examination, with special attention being drawn to the usefulness of these methods in finding out the causes of infertility. 51 patients with primary and second infertility were examined. HSG and laparoscopy make it possible to diagnose correctly the cause of infertility. They also enable adequate and early classification of patients for further diagnosis and treatment at highly specialized centers dealing with the problems of infertility. (author)

  11. Unexpected findings at diagnostic laparoscopy: caecal incarceration with concurrent appendicitis in a patient with bilateral broad ligament defects

    Science.gov (United States)

    Onida, S; Lynes, K; Whitehouse, PA

    2010-01-01

    Internal herniations through broad ligament defects are very rare. We present the first report of the triad of broad ligament defect, internal herniation of the caecum and appendicitis. A 36-year-old woman with phocomelia presented with right iliac fossa pain and vomiting. The patient had no previous history of trauma or surgery. Abdominal ultrasound showed a small amount of free fluid. At laparoscopy, bilateral broad ligament defects were found, with herniation of the caecum and an inflamed appendix through the right-sided defect. A laparoscopic salpingo-oophorectomy was required for reduction of the herniated bowel, and an appendicectomy was performed. Broad ligament defects may be congenital or acquired. In this case, in light of the limb abnormality and absence of previous surgery, a congenital aetiology is more likely. Ultrasound scan is not reliable and, although computed tomography may be of help, a diagnostic laparoscopy is the best investigation. PMID:20566032

  12. Sexual Function and Body Image are Similar after Laparoscopy-Assisted and Open Ileal Pouch-Anal Anastomosis

    DEFF Research Database (Denmark)

    Kjaer, Mie Dilling; Laursen, Stig Borbjerg; Qvist, Niels

    2014-01-01

    BACKGROUND: Ileal pouch-anal anastomosis (IPAA) is performed in patients with ulcerative colitis and familial adenomatous polyposis where the majority of patients are sexually active. Laparoscopic surgery is becoming the preferred technique for most colorectal interventions, and we examined posto...... better body image among laparoscopy-treated women, the two surgical techniques seem equal with respect to postoperative sexual function....... postoperative sexual function and body image compared to those after open surgery IPAA. METHODS: Patients treated with IPAA in the period from October 2008 to March 2012 were included. Evaluation of sexual function, body image, and quality of life was performed using the Female Sexual Function Index (FSFI......), the International Index of Erectile Function (IIEF), the Body Image Questionnaire (BIQ), and the Short Inflammatory Bowel Disease Questionnaire (SIBDQ). RESULTS: We included 72 patients (38 laparoscopy-assisted and 34 open). Response rate was 74 %. There were no differences in demographics, functional outcome...

  13. Doppler-guided hemorrhoidal artery ligation (DG-HAL): a safe treatment of II-III degree hemorrhoids for all patients. Could it be potentially also good prophylaxis?

    Science.gov (United States)

    Testa, A; Torino, G

    2010-06-01

    Doppler-guided hemorrhoidal artery ligation (HAL Doppler) is an innovative hemorrhoid treatment mainly utilised for II-III degree where bleeding is a predominant symptom. This procedure aims at dearterialization of the internal hemorrhoidal plexus by ligation of the terminal branches of the superior rectal artery detected using a special proctoscope and ultrasound system; the procedure is performed entirely above the dentate line, so it is genuinely painless. The aim of this study was to evaluate the efficacy, safety and invasivity of HAL Doppler technique to treat II and III degree hemorrhoids. The authors treated 148 patients, from May 2002 to December 2007, principally affected by II-III degree hemorrhoids characterized by bleeding and pain at evacuation. These patients were examined in a retrospective observational study of 128 patients, 86% of the group. Follow-up varied from 5 up to 72 months with an average observation time of 36.5 months. Success was registered in 90% of patients affected by II-III degree hemorrhoids and the absence of major complications (hemorrhage, incontinence, stenosis, perforation, sepsis). The authors suggest the safety, efficacy and low invasity of HAL Doppler for treatment of II-III degree hemorrhoids, which also found in the literature, and highlight its use in treating patients with unhealthy conditions which are a contraindication to the usual surgical treatments. Moreover, they suppose the use of HAL Doppler in low degree hemorrhoids as a therapeutic and also prophylactic rule of advanced degree.

  14. Vegetación halófila de tres localidades andinas en la vertiente pácifica del sur de perú

    NARCIS (Netherlands)

    Montesinos, D.B.

    2012-01-01

    Se describen las comunidades vegetales halófilas halladas en tres ecosistemas andinos en los departamentos de Arequipa y Moquegua (sur de Perú) en campos con influencia de pastoreo, fuego, abandono de agricultura o ocupando suelos inundados en las márgenes de los ríos. Se aplicó la metodología

  15. 3D straight-stick laparoscopy versus 3D robotics for task performance in novice surgeons: a randomised crossover trial.

    Science.gov (United States)

    Shakir, Fevzi; Jan, Haider; Kent, Andrew

    2016-12-01

    The advent of three-dimensional passive stereoscopic imaging has led to the development of 3D laparoscopy. In simulation tasks, a reduction in error rate and performance time is seen with 3D compared to two-dimensional (2D) laparoscopy with both novice and expert surgeons. Robotics utilises 3D and instrument articulation through a console interface. Robotic trials have demonstrated that tasks performed in 3D produced fewer errors and quicker performance times compared with those in 2D. It was therefore perceived that the main advantage of robotic surgery was in fact 3D. Our aim was to compare 3D straight-stick laparoscopic task performance (3D) with robotic 3D (Robot), to determine whether robotic surgery confers additional benefit over and above 3D visualisation. We randomised 20 novice surgeons to perform four validated surgical tasks, either with straight-stick 3D laparoscopy followed by 3D robotic surgery or in the reverse order. The trial was conducted in two fully functional operating theatres. The primary outcome of the study was the error rate as defined for each task, and the secondary outcome was the time taken to complete each task. The participants were asked to perform the tasks as quickly and as accurately as possible. Data were analysed using SPSS version 21. The median error rate for completion of all four tasks with the robot was 2.75 and 5.25 for 3D with a P value performance time for completion of all four tasks with the robot was 157.1 and 342.5 s for 3D with a P value 3D robotic systems over 3D straight-stick laparoscopy, in terms of reduced error rate and quicker task performance time.

  16. Laparoscopy and computed tomography imaging in advanced ovarian tumors: A roadmap for prediction of optimal cytoreductive surgery

    OpenAIRE

    Ahmed Samy El-Agwany

    2018-01-01

    Introduction: Comprehensive staging laparotomy and cytoreductive surgery followed by chemotherapy has been the standard of care in advanced ovarian cancer. Neoadjuvant chemotherapy is an alternative in inoperable advanced cases. To select patients amenable for successful cytoreduction, major determinants including CT imaging and laparoscopy could be of value. There is no general accepted model for selection and reproducibility of techniques are a major challenge due to different clinical prac...

  17. The poor quality of information about laparoscopy on the World Wide Web as indexed by popular search engines.

    Science.gov (United States)

    Allen, J W; Finch, R J; Coleman, M G; Nathanson, L K; O'Rourke, N A; Fielding, G A

    2002-01-01

    This study was undertaken to determine the quality of information on the Internet regarding laparoscopy. Four popular World Wide Web search engines were used with the key word "laparoscopy." Advertisements, patient- or physician-directed information, and controversial material were noted. A total of 14,030 Web pages were found, but only 104 were unique Web sites. The majority of the sites were duplicate pages, subpages within a main Web page, or dead links. Twenty-eight of the 104 pages had a medical product for sale, 26 were patient-directed, 23 were written by a physician or group of physicians, and six represented corporations. The remaining 21 were "miscellaneous." The 46 pages containing educational material were critically reviewed. At least one of the senior authors found that 32 of the pages contained controversial or misleading statements. All of the three senior authors (LKN, NAO, GAF) independently agreed that 17 of the 46 pages contained controversial information. The World Wide Web is not a reliable source for patient or physician information about laparoscopy. Authenticating medical information on the World Wide Web is a difficult task, and no government or surgical society has taken the lead in regulating what is presented as fact on the World Wide Web.

  18. Learning curve of laparoscopy-assisted distal gastrectomy with systemic lymphadenectomy for early gastric cancer

    Institute of Scientific and Technical Information of China (English)

    Min-Chan Kim; Ghap-Joong Jung; Hyung-Ho Kim

    2005-01-01

    AIM: To evaluate the nature of the "learning curve" for laparoscopy-assisted distal gastrectomy (LADG) with systemic lymphadenectomy for early gastric cancer. METHODS: The data of 90 consecutive patients with early gastric cancer who underwent LADG with systemic lymphadenectomy between April 2003 and November 2004 were reviewed. The 90 patients were divided into 9 sequential groups of 10 cases in each group and the average operative time of these 9 groups were determined. Other learning indicators, such as transfusion requirements, conversion rates to open surgery, postoperative complication, time to first flatus, and postoperative hospital stay, were evaluated. RESULTS: After the first 10 LADGs, the operative time reached its first plateau (230-240 min/operation) and then reached a second plateau (<200 min/operation) for the final 30 cases. Although a significant improvement in the operative time was noted after the first 50 cases, there were no significant differences in transfusion requirements, conversion rates to open surgery, postoperative complications, time to first flatus, or postoperative hospital stay between the groups. CONCLUSION: Based on operative time analysis, this study show that experience of 50 cases of LADG with systemic lymphadenectomy for early gastric cancer is required to achieve optimum proficiency.

  19. Impact of nutritional status on outcomes in laparoscopy-assisted gastrectomy.

    Science.gov (United States)

    Nagata, Tomoyuki; Nakase, Yuen; Nakamura, Kei; Sougawa, Akira; Mochiduki, Satoshi; Kitai, Shozo; Inaba, Seishiro

    2017-11-01

    There is a high morbidity rate after digestive surgery in patients with nutritional disorders such as high body mass index and depletion of skeletal muscle. The ratio of psoas muscle area to trunk area was defined as the Psoas and All trunk Ratio (PandA Ratio) and used as an index of the balance between muscle and adipose tissue. This ratio was determined in 77 patients undergoing laparoscopy-assisted gastrectomy (LAG) for gastric cancer. Patients were classified into groups with and without postoperative complications. Clinicopathological factors were compared between the groups, and relationships of PandA Ratio with other nutritional indices were examined. PandA Ratios were also analyzed in males and females in each Clavien-Dindo grade. Complications developed in 22 patients (28.6%) after LAG. The PandA Ratio was significantly lower in patients with complications in univariate (2.76 ± 0.22% versus 3.66 ± 0.14%, P = 0.0009) and multivariate (P = 0.0064) analyses. A low PandA Ratio was also associated with more severe complications in males. Measurement of the areas of the psoas muscle and trunk on CT is useful for evaluation of the balance between skeletal and adipose tissue. The PandA Ratio derived from these measurements is a predictor of the clinical course after LAG in males. Copyright © 2017 Elsevier Inc. All rights reserved.

  20. Comparison between two portal laparoscopy and open surgery for ovariectomy in dogs.

    Science.gov (United States)

    Shariati, Elnaz; Bakhtiari, Jalal; Khalaj, Alireza; Niasari-Naslaji, Amir

    2014-01-01

    Ovariectomy (OVE) is a routine surgical procedure for neutering in small animal practice. Laparoscopy is a new surgical technique which contains advantages such as less trauma, smaller incision and excellent visualization than traditional open surgery. The present study was conducted to examine the feasibility and safety of laparoscopic procedure through two portal comparing with the conventional open surgery for OVE in healthy female bitches (n=16). Dogs were divided in two equal groups. In laparoscopic group, two 5 and 10 mm portals were inserted; First in the umbilicus for introducing the camera and the second, caudal to the umbilicus for inserting the forceps. Laparoscopic procedure involved grasping and tacking the ovary to the abdominal wall, followed by electrocautery, resection and removal of the ovary. In open surgery, routine OVE was conducted through an incision from umbilicus to caudal midline. Mean operative time, total length of scar, blood loss, clinical and blood parameters and all intra and post-operative complications were recorded in both groups. Mean operative time, total length of scar, blood loss and post-operative adhesions were significantly less in laparoscopic group compared with open surgery. In conclusion, laparoscopic OVE is an acceptable procedure due to more advantages in comparison with traditional OVE.

  1. Evaluation of Basic Skills Improvement for Laparoscopy by Training with a Video Game

    Directory of Open Access Journals (Sweden)

    María Fernanda Gómez-Ramírez

    2014-06-01

    Full Text Available Introduction: Due to the growing economical and ethical limitations in surgeons training for minimally invasive surgery (mis, e.g. laparoscopy, this study aims at evaluating the effect of a continuous practice of a particular videogame on the development of the fundamental and specific skills needed to perform this type of procedure successfully. Materials and methods: To evaluate the effectiveness of video game practicing, three essential and common activities were chosen (cutting, suturing, and eye-hand coordination to be performed in laparoscopic simulators. Eight different indexes or variables of performance were measured in the three activities. Fourteen voluntaries without previous experience in surgery were divided in two groups (intervention and control and their performance was evaluated before and after a one-month standardized training program with the video game Marble Mania®. Results: A general improvement of all the performance variables was observed after one month training in the intervention group. This improvement was significant with respect to the control group in three of the eight variables: suturing errors (p = 0.003, and the execution and number of errors in the eye-hand coordination (p = 0.025 and 0.001, respectively.

  2. Agenesis of the gallbladder with hypoplastic cystic duct diagnosed at laparoscopy.

    Science.gov (United States)

    Kwon, A-Hon; Yanagimoto, Hiroaki; Matsui, Yoichi; Imamura, Atsushi

    2006-08-01

    An 86-year-old man was admitted to our department with complaints of intermittent upper abdominal pain. Ultrasonography of the abdomen showed dilated extrahepatic bile ducts containing stones; however, the gallbladder was not clearly identified. Magnetic resonance cholangiopancreatography showed dilated extrahepatic ducts and choledocholithiasis without gallbladder visualization. The stone extraction was performed with endoscopic sphincterotomy. Three-dimensional images using spiral-computed tomography after intravenous-infusion cholangiography clearly demonstrated an obstruction of the cystic duct. The patient was scheduled for laparoscopic cholecystectomy. At laparoscopy, the gallbladder fossa was not identified on the undersurface of the liver. Despite a thorough examination of the intrahepatic (left-sided within the lesser omentum), retroperitoneal, retrohepatic (within the falciform ligament), retroduodenal, and retropancreatic areas using laparoscopic ultrasonography, the gallbladder was not found. After careful dissection of the hepatoduodenal ligament, the dilated extrahepatic bile duct and a 1-cm length of hypoplastic cystic duct were found. Gallbladder agenesis is usually accompanied by the lack of the cystic duct. The present case is the third report of gallbladder agenesis with a patent or hypoplastic cystic duct.

  3. Gastric carcinoma originating from the heterotopic submucosal gastric gland treated by laparoscopy and endoscopy cooperative surgery

    Science.gov (United States)

    Imamura, Taisuke; Komatsu, Shuhei; Ichikawa, Daisuke; Kobayashi, Hiroki; Miyamae, Mahito; Hirajima, Shoji; Kawaguchi, Tsutomu; Kubota, Takeshi; Kosuga, Toshiyuki; Okamoto, Kazuma; Konishi, Hirotaka; Shiozaki, Atsushi; Fujiwara, Hitoshi; Ogiso, Kiyoshi; Yagi, Nobuaki; Yanagisawa, Akio; Ando, Takashi; Otsuji, Eigo

    2015-01-01

    Gastric carcinoma is derived from epithelial cells in the gastric mucosa. We reported an extremely rare case of submucosal gastric carcinoma originating from the heterotopic submucosal gastric gland (HSG) that was safely diagnosed by laparoscopy and endoscopy cooperative surgery (LECS). A 66-year-old man underwent gastrointestinal endoscopy, which detected a submucosal tumor (SMT) of 1.5 cm in diameter on the lesser-anterior wall of the upper gastric body. The tumor could not be diagnosed histologically, even by endoscopic ultrasound-guided fine-needle aspiration biopsy. Local resection by LECS was performed to confirm a diagnosis. Pathologically, the tumor was an intra-submucosal well differentiated adenocarcinoma invading 5000 μm into the submucosal layer. The resected tumor had negative lateral and vertical margins. Based on the Japanese treatment guidelines, additional laparoscopic proximal gastrectomy was curatively performed. LECS is a less invasive and safer approach for the diagnosis of SMT, even in submucosal gastric carcinoma originating from the HSG. PMID:26306144

  4. Virtual reality laparoscopy: which potential trainee starts with a higher proficiency level?

    Science.gov (United States)

    Paschold, M; Schröder, M; Kauff, D W; Gorbauch, T; Herzer, M; Lang, H; Kneist, W

    2011-09-01

    Minimally invasive surgery requires technical skills distinct from those used in conventional surgery. The aim of this prospective study was to identify personal characteristics that may predict the attainable proficiency level of first-time virtual reality laparoscopy (VRL) trainees. Two hundred and seventy-nine consecutive undergraduate medical students without experience attended a standardized VRL training. Performance data of an abstract and a procedural task were correlated with possible predictive factors providing potential competence in VRL. Median global score requirement status was 86.7% (interquartile range (IQR) 75-93) for the abstract task and 74.4% (IQR 67-88) for the procedural task. Unadjusted analysis showed significant increase in the global score in both tasks for trainees who had a gaming console at home and frequently used it as well as for trainees who felt self-confident to assist in a laparoscopic operation. Multiple logistic regression analysis identified frequency of video gaming (often/frequently vs. rarely/not at all, odds ratio: abstract model 2.1 (95% confidence interval 1.2; 3.6), P = 0.009; virtual reality operation procedure 2.4 (95% confidence interval 1.3; 4.2), P = 0.003) as a predictive factor for VRL performance. Frequency of video gaming is associated with quality of first-time VRL performance. Video game experience may be used as trainee selection criteria for tailored concepts of VRL training programs.

  5. Hysteroscopic hydrosalpinx occlusion with Essure device in IVF patients when salpingectomy or laparoscopy is contraindicated.

    Science.gov (United States)

    Matorras, Roberto; Rabanal, Aintzane; Prieto, Begoña; Diez, Santiago; Brouard, Iñaki; Mendoza, Rosario; Exposito, Antonia

    2013-07-01

    To evaluate, in patients with hydrosalpinges, the effect on in vitro fertilization (IVF) outcome of the insertion by hysteroscopy of an intratubal blocking device, in cases where laparoscopic salpingectomy or laparoscopy was contraindicated. A prospective interventional case series study was conducted in fifteen women with unilateral (N=6) or bilateral hydrosalpinges (N=9) submitted for IVF. In all of them, laparoscopic salpingectomy was contraindicated. Hysteroscopic insertion of the Essure intratubal device in a consultation room setting was performed. IVF results were compared with those of women where hydrosalpinx was treated by laparoscopic salpingectomy (48 women, 76 cycles). There were no complications during or immediately after the procedure in any of the patients. There were four pregnancies from 16 embryo-transfers with own oocytes, one spontaneous pregnancy after unilateral Essure insertion, and one pregnancy after oocyte donation. In one case the hydrosalpinx grew and pelvic inflammatory disease developed 6 months after the insertion, requiring bilateral adnexectomy. Although not of statistical significance, IVF pregnancy rates were somewhat lower than in the laparoscopic salpingectomy group, which was attributed to the lower ovarian reserve before Essure insertion. The hysteroscopic insertion of the Essure intratubal device prior to IVF is a reasonable option in cases where laparoscopic salpingectomy is contraindicated. Larger series are required to assess pregnancy outcome. Copyright © 2013. Published by Elsevier Ireland Ltd.

  6. Laparoscopy-assisted percutaneous endoscopic gastrostomy using a "Funada-kit II" device.

    Science.gov (United States)

    Takahashi, Toshiaki; Miyano, Go; Shiyanagi, Satoko; Lane, Geoffrey J; Yamataka, Atsuyuki

    2012-09-01

    We aimed at assessing the effect of using a "Funada-kit II" device during laparoscopy-assisted percutaneous endoscopic gastrostomy (Lap-PEG), by reviewing 29 cases of Lap-PEG we performed from 2001 to 2011. We started using the "Funada-kit II" (CREATE MEDIC CO., Kanagawa, Japan) device with two parallel needles to puncture the stomach and assist suturing the anterior gastric wall to the anterior abdominal wall during Lap-PEG in 2011 (F-PEG). By introducing a loop through the lumen of one needle which allows placement of a suture introduced through the lumen of the other needle. Once repeated, the stomach can be pexied at two points, approximately 2 cm apart. We compared Lap-PEG (n = 23) with F-PEG (n = 6) where the mean ages and weights at surgery and sex ratios were similar. All cases were uneventful without intraoperative complications, although one postoperative wound infection occurred in a Lap-PEG case. There were no differences in the duration of analgesia, time taken to commence tube feeding, and return to full feeding. However, mean operating time was significantly shorter in F-PEG (28.1 min) versus Lap-PEG (46.1 min) p < 0.05. As per results F-PEG would appear to be as safe as Lap-PEG, but much quicker.

  7. Diagnostic staging laparoscopy in gastric cancer treatment: A cost-effectiveness analysis.

    Science.gov (United States)

    Li, Kevin; Cannon, John G D; Jiang, Sam Y; Sambare, Tanmaya D; Owens, Douglas K; Bendavid, Eran; Poultsides, George A

    2018-05-01

    Accurate preoperative staging helps avert morbidity, mortality, and cost associated with non-therapeutic laparotomy in gastric cancer (GC) patients. Diagnostic staging laparoscopy (DSL) can detect metastases with high sensitivity, but its cost-effectiveness has not been previously studied. We developed a decision analysis model to assess the cost-effectiveness of preoperative DSL in GC workup. Analysis was based on a hypothetical cohort of GC patients in the U.S. for whom initial imaging shows no metastases. The cost-effectiveness of DSL was measured as cost per quality-adjusted life-year (QALY) gained. Drivers of cost-effectiveness were assessed in sensitivity analysis. Preoperative DSL required an investment of $107 012 per QALY. In sensitivity analysis, DSL became cost-effective at a threshold of $100 000/QALY when the probability of occult metastases exceeded 31.5% or when test sensitivity for metastases exceeded 86.3%. The likelihood of cost-effectiveness increased from 46% to 93% when both parameters were set at maximum reported values. The cost-effectiveness of DSL for GC patients is highly dependent on patient and test characteristics, and is more likely when DSL is used selectively where procedure yield is high, such as for locally advanced disease or in detecting peritoneal and superficial versus deep liver lesions. © 2017 Wiley Periodicals, Inc.

  8. Laparoscopy-like operative vaginoscopy: a new approach to manage mesh erosions.

    Science.gov (United States)

    Billone, Valentina; Amorim-Costa, Célia; Campos, Sara; Rabischong, Benoĭt; Bourdel, Nicolas; Canis, Michel; Botchorishvili, Revaz

    2015-01-01

    Mesh erosion through the vagina is the most common complication of synthetic mesh used for pelvic organ prolapse repair. However, conventional transvaginal mesh excision has many technical limitations. We aimed at creating and describing a new surgical technique for transvaginal removal of exposed mesh that would enable better exposition and access, thus facilitating optimal treatment. A step-by-step video showing the technique. A university tertiary care hospital. Five patients previously submitted to pelvic organ prolapse repair using synthetic mesh, presenting mesh erosion through the vagina. Mesh excision using a laparoscopy-like operative vaginoscopy in which standard laparoscopic instruments are used through a single-incision laparoscopic surgery port device placed in the vagina. In all cases, a very good exposure of the mesh was achieved, a minimal tissue traction was required, and the procedures were performed in a very ergonomic way. All the patients were discharged on the same day of the surgery and had a painless postoperative course. So far, there have been no cases of relapse. This seems to be a simple, cheap, and valuable minimally invasive technique with many advantages in comparison with the conventional approach. More cases and time are necessary to access its long-term efficacy. It may possibly be used for the management of other conditions. Copyright © 2015 AAGL. Published by Elsevier Inc. All rights reserved.

  9. Laparoscopy-assisted hydrostatic in situ reduction of intussusception: A reasonable alternative?

    Directory of Open Access Journals (Sweden)

    V. V. S. S. Chandrasekharam

    2011-01-01

    Full Text Available Aim: To evaluate an alternative way of reducing intussusceptions under laparoscopic guidance. Materials and Methods: This is a retrospective observational study of children who underwent laparoscopy-assisted hydrostatic in situ reduction of intussusceptions (LAHIRI. Under general anesthesia with laparoscopic vision, warm saline was infused into the rectum with a 16-18 F Foley catheter and a drip set till the intussusception was reduced. Results: Eleven patients [age 7.8 (±2.8 months] were operated over a period of 1 year. Ten (90.9% patients had ileocolic intussusception, which got completely reduced, but one (9% had ileo-ileocolic intusussception, in whom manual reduction by extending the subumbilical incision was required to reduce the ileoileal part. The mean duration of surgery was 38.5 (±6.6 min. No patient had bowel ischemia and there were no intra- or postoperative complications. Conclusions: LAHIRI appears to be an effective and safe technique in children. Specific advantages are that it is performed in a controlled environment in the operating room, avoids patient apprehension and discomfort, avoids bowel handling, provides a safe opportunity to create higher intraluminal pressure, ensures visual assessment of bowel vascularity and completeness of reduction.

  10. PATIENT POSITION AS A POSSIBLE RISK FACTOR FOR POSTOPERATIVE NAUSEA AND VOMITING (PONV IN GYNECOLOGIC LAPAROSCOPY

    Directory of Open Access Journals (Sweden)

    Aleksandar Ćirić

    2012-01-01

    Full Text Available Postoperative nausea and vomiting (PONV are still a significant problem in modern anesthetic practice. Discomfort caused by PONV intensifies other unpleasant elements of recovery, such as pain, frustration or fear. PONV also generates aversion to future anesthesia and have a negative impact on staff and patient's family. PONV can increase the cost of completing a surgical procedure, because it extends the time a patient spends in the postanesthesia care unit (PACU or delay discharge of ambulatory patients. It is generally accepted that the incidence of PONV after general anesthesia for various types of surgery in the last decade is still between 20-30%, and 70% in laparoscopic abdominal surgery. The incidence is three times higher in females compared to males. Many factors are involved in triggering PONV, such as patientrelated factors, the type of surgery, anesthesia management, etc. The results of this study suggest that the patient positioning (modified supine lithotomy position with ''Trendelenburg" increases the risk of PONV in gynecologic laparoscopy.

  11. Input and output for surgical simulation: devices to measure tissue properties in vivo and a haptic interface for laparoscopy simulators.

    Science.gov (United States)

    Ottensmeyer, M P; Ben-Ur, E; Salisbury, J K

    2000-01-01

    Current efforts in surgical simulation very often focus on creating realistic graphical feedback, but neglect some or all tactile and force (haptic) feedback that a surgeon would normally receive. Simulations that do include haptic feedback do not typically use real tissue compliance properties, favoring estimates and user feedback to determine realism. When tissue compliance data are used, there are virtually no in vivo property measurements to draw upon. Together with the Center for Innovative Minimally Invasive Therapy at the Massachusetts General Hospital, the Haptics Group is developing tools to introduce more comprehensive haptic feedback in laparoscopy simulators and to provide biological tissue material property data for our software simulation. The platform for providing haptic feedback is a PHANToM Haptic Interface, produced by SensAble Technologies, Inc. Our devices supplement the PHANToM to provide for grasping and optionally, for the roll axis of the tool. Together with feedback from the PHANToM, which provides the pitch, yaw and thrust axes of a typical laparoscopy tool, we can recreate all of the haptic sensations experienced during laparoscopy. The devices integrate real laparoscopy toolhandles and a compliant torso model to complete the set of visual and tactile sensations. Biological tissues are known to exhibit non-linear mechanical properties, and change their properties dramatically when removed from a living organism. To measure the properties in vivo, two devices are being developed. The first is a small displacement, 1-D indenter. It will measure the linear tissue compliance (stiffness and damping) over a wide range of frequencies. These data will be used as inputs to a finite element or other model. The second device will be able to deflect tissues in 3-D over a larger range, so that the non-linearities due to changes in the tissue geometry will be measured. This will allow us to validate the performance of the model on large tissue

  12. [Per os early nutrition for colorectal pathology susceptible of laparoscopy-assisted surgery].

    Science.gov (United States)

    Fernández de Bustos, A; Creus Costas, G; Pujol Gebelli, J; Virgili Casas, N; Pita Mercé, A M

    2006-01-01

    Current less invasive surgical techniques, the use of new analgesic and anesthetic drugs, and early mobilization ("multimodal surgical strategies") reduce the occurrence of post-surgery paralytic ileus and vomiting, making possible early nutrition by the digestive route. With these premises, a nutrition protocol was designed for its implementation in colorectal pathology susceptible of laparoscopy-assisted surgery. to assess the efficacy of this protocol that comprises 3 phases. Phase I: home preparation with 7 days duration; low-residues and insoluble fiber diet, supplemented with 400 mL of hyperproteic polymeric formula with no lactose or fiber, bowel cleansing 2 days prior to surgery and hydration with water, sugared infusions, and vegetable broth. Phase II: immediate post-surgical period with watery diet for 3 days with polymeric diet with no fiber. Phase III: semi-solid diet with no residues, nutritional formula and progressive reintroduction of food intake in four stages of varying duration according to surgery and digestive tolerance. prospective study performed at our hospital with patients from our influence area, from February 2003 to May 2004, including 25 patients, 19 men and 6 women, with mean age of 63.3 years (range = 33-79) and mean body mass index of 26.25 kg/m2 (range = 20.84-31.3), all of them suffering from colorectal pathology susceptible of laparoscopy-assisted surgery, and to which the study protocol was applied. Fourteen left hemicolectomies, 5 right hemicolectomies, 4 low anterior resections with protective colostomy, and subtotal colectomies and lateral ileostomy were done. Final diagnoses were: 3 diverticular diseases; 3 adenomas; 7 rectosigmoidal neoplasms; and 12 large bowel neoplasms in other locations. The pathology study confirmed: pT3N0 (n = 7), pT3N1 (n = 3), pT3N2 (n = 1), and pT3N1M1 (n = 1), pT1N0 (n = 4), pT1N1 (n = 2), pTis (n = 1). Twelve patients were started on adjuvant therapy of which 3 had received an initial treatment

  13. Comparisons of Hysterosalpingography and Laparoscopy Results in the Diagnosis of Tubal Occlusion

    Directory of Open Access Journals (Sweden)

    Rafet Duraker

    2011-03-01

    Full Text Available Objective: The compliance rate between the hysterosalpingography (HSG and laparoscopy (L/S results in patients who diagnosed tubal occlusion on the HSG was investigated. Also, the incidence of endometriosis was evaluated in the study population. Material and Methods: Medical records of 139 women who were underwent L/S for the investigation of the tubal occlusion were reviewed retrospectively. The concordance rate between the HSG and L/S was investigated. The incidence of endometriosis in patients with no tubal pathology was compared with patients with unilaterally and bilaterally tubal occlusion. Results: Mean age of the women was 31.8±5.7years, mean BMI was measured as 24.6±4.6 kg/m2, and gravida 0 (0-5, mean infertility period was 30.7±3.7 months. Tubal occlusion was confirmed after the L/S in 38.8% of the patients (n=38 who has unilaterally tubal occlusion on the HSG. However, 58.8% (n=20 of the patients who were diagnosed as bilaterally tubal occlusion on the HSG was confirmed with the L/S. The misdiagnosis rate of the HSG was significantly high in women with unilaterally tubal occlusions compared with bilaterally tubal occlusions [(respectively, 61.2%, 51.2% (p: 0.001]. Endometriosis was observed in 28.4% of the patients who had patent tubes and in 13.9% of the patients in the unilaterally tubal occlusion group and and in 22.7% of the patients in the bilaterally tubal occlusion group. But the difference was not statistically significant when groups were compared according to the rate of endometriosis (p=0.24. Conclusion: HSG is the first step diagnostic test for the assessment of the fallopian tubes. Although L/S is more invasive technique than HSG, L/S with chromopertubation is the gold standard test for identifying periadnexal adhesive disease and endometriosis.

  14. Intraabdominal laparoscopy-assisted "open" vessel ligation of testicular vessels: a potential treatment for varicocele.

    Science.gov (United States)

    Miyano, Go; Miyahara, Katsumi; Halibieke, Abudebieke; Lane, Geoffrey J; Okazaki, Tadaharu; Yamataka, Atsuyuki

    2011-10-01

    We tested our laparoscopy-assisted "open" ligation (LOL) technique on testicular vessels. We ligated the left testicular artery and vein (TAV) in 8-week-old male Wister rats using LOL (LOL group; n=10) or laparotomy (open group; n=10). In LOL, a 0-degree laparoscope was introduced through a 5-mm epigastric trocar. A 3-mm grasper was used to expose the left TAV. A lapa-her-closure (LHC) needle loaded with 3-0 SurgiPro was directly inserted into the left lower quadrant where the left TAV should be and advanced under the vessels, and the suture material was released leaving one end outside. The LHC was then withdrawn a little and advanced again over the vessels to grasp the end of the suture material just released to bring it outside. This was proximally repeated. The two ends of both sutures were conventionally tied outside, and the knot was passed through the insertion site and tightened around the vessels. In the open group, the left TAV were ligated using two 3-0 SurgiPro ties. In both groups, the right side was left intact. All rats were sacrificed 2 weeks postoperatively, and both testes were examined with hematoxylin and eosin. Treatment time was 5-7 minutes for LOL and 7-8 minutes for the open group. Postoperative recovery was uneventful. No adhesions were present between the ligated vessels and bowel in any rat. Histopathology of all left testes showed coagulative necrosis of germinal cells and seminiferous tubules; all right testes were normal. LOL appears to be as effective as open ligation and may find application for treating varicocele.

  15. Patient and surgeon factors are associated with the use of laparoscopy in appendicitis.

    LENUS (Irish Health Repository)

    McCartan, D P

    2012-02-01

    Aim The use of a minimally invasive approach to treat appendicitis has yet to be universally accepted. The objective of this study was to examine recent trends in Ireland in the surgical management of acute appendicitis. Method Data were obtained from the Irish Hospital In-Patient Enquiry system for patients discharged with a diagnosis of appendicitis between 1999 and 2007. An anonymous postal survey was sent to all general surgeons of consultant and registrar level in Ireland to assess current attitudes to the use of laparoscopic appendectomy. Results The use of laparoscopic appendectomy increased throughout the study and was the most common approach for appendectomy in 2007. Multivariate analysis revealed age under 50 years (OR = 1.51), female sex (OR = 2.84) and residence in high-density population areas (OR = 4.15) as predictive factors for undergoing laparoscopic appendectomy in the most recent year of the study. While 97% of surgeons reported current use of laparoscopy in patients with acute right iliac fossa pain, in most cases it was selective. Surgeons in university teaching hospitals (42 of 77; 55%) were more likely to report using laparoscopic appendectomy for all cases of appendicitis than those in regional (six of 23; 26%) or general (13 of 53; 25%) hospitals (P = 0.048). Conclusion This study has demonstrated a significant increase in laparoscopic appendectomy, yet a variety of patient and surgeon factors contribute to the choice of procedure. Differences in the perception of benefit of the laparoscopic approach amongst surgeons appears to be an important factor in determining the operative approach for appendectomy.

  16. Virtual laparoscopy: Initial experience with three-dimensional ultrasonography to characterize hepatic surface features

    International Nuclear Information System (INIS)

    Sekimoto, Tadashi; Maruyama, Hitoshi; Kondo, Takayuki; Shimada, Taro; Takahashi, Masanori; Yokosuka, Osamu; Otsuka, Masayuki; Miyazaki, Masaru; Mine, Yoshitaka

    2013-01-01

    Objective: To examine the potential utility of 3D-reconstructed sonograms to distinguish cirrhotic from non-cirrhotic livers by demonstrating hepatic surface characteristics. Materials and methods: A preliminary phantom study was performed to examine the potential resolution of 3D images, recognizing surface irregularities as a difference in height. In a prospective clinical study of 31 consecutive patients with ascites (21 cirrhosis, 10 non-cirrhosis), liver volume data were acquired by transabdominal mechanical scanning. The hepatic surface features of cirrhotic and non-cirrhotic patients were compared by 2 independent reviewers. Intra- and inter-operator/reviewer agreements were also examined. Results: The phantom study revealed that 0.4 mm was the minimum recognizable difference in height on the 3D sonograms. The hepatic surface image was successfully visualized in 74% patients (23/31). Success depended on the amount of ascites; visualization was 100% with ascites of 10 mm or more between the hepatic surface and abdominal wall. The images showed irregularity of the hepatic surface in all cirrhotic patients. The surface appearance was confirmed as being very similar in 3 patients who had both 3D sonogram and liver resection for transplantation. The ability to distinguish cirrhotic liver from non-cirrhotic liver improved with the use of combination of 2D- and 3D-imaging versus 2D-imaging alone (sensitivity, p = 0.02; accuracy, p = 0.02) or 3D-imaging alone (sensitivity, p = 0.03). Intra-/inter-operator and inter-reviewer agreement were excellent (κ = 1.0). Conclusion: 3D-based sonographic visualization of the hepatic surface showed high reliability and reproducibility, acting as a virtual laparoscopy method, and the technique has the potential to improve the diagnosis of cirrhosis

  17. Restoration of gait for spinal cord injury patients using HAL with intention estimator for preferable swing speed.

    Science.gov (United States)

    Tsukahara, Atsushi; Hasegawa, Yasuhisa; Eguchi, Kiyoshi; Sankai, Yoshiyuki

    2015-03-01

    This paper proposes a novel gait intention estimator for an exoskeleton-wearer who needs gait support owing to walking impairment. The gait intention estimator not only detects the intention related to the start of the swing leg based on the behavior of the center of ground reaction force (CoGRF), but also infers the swing speed depending on the walking velocity. The preliminary experiments categorized into two stages were performed on a mannequin equipped with the exoskeleton robot [Hybrid Assistive Limb: (HAL)] including the proposed estimator. The first experiment verified that the gait support system allowed the mannequin to walk properly and safely. In the second experiment, we confirmed the differences in gait characteristics attributed to the presence or absence of the proposed swing speed profile. As a feasibility study, we evaluated the walking capability of a severe spinal cord injury patient supported by the system during a 10-m walk test. The results showed that the system enabled the patient to accomplish a symmetrical walk from both spatial and temporal standpoints while adjusting the speed of the swing leg. Furthermore, the critical differences of gait between our system and a knee-ankle-foot orthosis were obtained from the CoGRF distribution and the walking time. Through the tests, we demonstrated the effectiveness and practical feasibility of the gait support algorithms.

  18. Heuristic simulation of nuclear systems on a supercomputer using the HAL-1987 general-purpose production-rule analysis system

    International Nuclear Information System (INIS)

    Ragheb, M.; Gvillo, D.; Makowitz, H.

    1987-01-01

    HAL-1987 is a general-purpose tool for the construction of production-rule analysis systems. It uses the rule-based paradigm from the part of artificial intelligence concerned with knowledge engineering. It uses backward-chaining and forward-chaining in an antecedent-consequent logic, and is programmed in Portable Standard Lisp (PSL). The inference engine is flexible and accommodates general additions and modifications to the knowledge base. The system is used in coupled symbolic-procedural programming adaptive methodologies for stochastic simulations. In Monte Carlo simulations of particle transport, the system considers the pre-processing of the input data to the simulation and adaptively controls the variance reduction process as the simulation progresses. This is accomplished through the use of a knowledge base of rules which encompass the user's expertise in the variance reduction process. It is also applied to the construction of model-based systems for monitoring, fault-diagnosis and crisis-alert in engineering devices, particularly in the field of nuclear reactor safety analysis

  19. Role of staging laparoscopy in the management of Pancreatic Duct Carcinoma (PDAC): Single-center experience from a tertiary hospital in Brazil.

    Science.gov (United States)

    de Jesus, Victor Hugo Fonseca; da Costa Junior, Wilson Luiz; de Miranda Marques, Tomás Mansur Duarte; Diniz, Alessandro Landskron; de Castro Ribeiro, Héber Salvador; de Godoy, André Luis; de Farias, Igor Correia; Coimbra, Felipe José Fernandez

    2018-03-06

    Proper staging is critical to the management of pancreatic ductal carcinoma (PDAC). Laparoscopy has been used to stage patients without gross metastatic disease with variable success. We aimed to identify the frequency of patients diagnosed by laparoscopy with occult metastatic disease. Also, we looked for variables related to a higher chance of occult metastasis. Patients with PDAC submitted to staging laparoscopy either immediately before pancreatectomy or as a separate procedure between January 2010 and December 2016 were included. None presented gross metastatic disease at initial staging. We used logistic regression to search for variables associated with metastatic disease. The study population consisted of 63 patients. Among all patients, nine (16.7%) had occult metastases at laparoscopy. Unresectable tumor (Odds ratio = 18.0, P = 0.03), increasing tumor size (Odds ratio = 1.36, P = 0.01), and abdominal pain (Odds ratio = 5.6, P = 0.04) significantly predicted the risk of occult metastases in univariate analysis. In multivariate analysis, only tumor size predicted the risk of occult metastases. Laparoscopy remains a valuable tool in PDAC staging. Patients with either large or unresectable tumors, or presenting with abdominal pain present the highest risk for occult intra-abdominal metastases. © 2018 Wiley Periodicals, Inc.

  20. Advancing bioluminescence imaging technology for the evaluation of anticancer agents in the MDA-MB-435-HAL-Luc mammary fat pad and subrenal capsule tumor models.

    Science.gov (United States)

    Zhang, Cathy; Yan, Zhengming; Arango, Maria E; Painter, Cory L; Anderes, Kenna

    2009-01-01

    Tumors grafted s.c. or under the mammary fat pad (MFP) rarely develop efficient metastasis. By applying bioluminescence imaging (BLI) technology, the MDA-MB-435-HAL-Luc subrenal capsule (SRC) model was compared with the MFP model for disease progression, metastatic potential, and response to therapy. The luciferase-expressing MDA-MB-435-HAL-Luc cell line was used in both MFP and SRC models. BLI technology allowed longitudinal assessment of disease progression and the therapeutic response to PD-0332991, Avastin, and docetaxel. Immunohistochemical analysis of Ki67 and CD31 staining in the primary tumors was compared in these models. Caliper measurement was used in the MFP model to validate the BLI quantification of primary tumors. The primary tumors in MDA-MB-435-HAL-Luc MFP and SRC models displayed comparable growth rates and vascularity. However, tumor-bearing mice in the SRC model developed lung metastases much earlier (4 weeks) than in the MFP model (>7 weeks), and the metastatic progression contributed significantly to the survival time. In the MFP model, BLI and caliper measurements were comparable for quantifying palpable tumors, but BLI offered an advantage for detecting the primary tumors that fell below a palpable threshold and for visualizing metastases. In the SRC model, BLI allowed longitudinal assessment of the antitumor and antimetastatic effects of PD-0332991, Avastin, and docetaxel, and the results correlated with the survival benefits of these agents. The MDA-MB-435-HAL-Luc SRC model and the MFP model displayed differences in disease progression. BLI is an innovative approach for developing animal models and creates opportunities for improving preclinical evaluations of anticancer agents.

  1. Chance of adhesion formation after laparoscopic salpingo-ovariolysis: is there a place for second-look laparoscopy?

    Science.gov (United States)

    Alborzi, Saeed; Motazedian, Shahdokht; Parsanezhad, Mohammad E

    2003-05-01

    To evaluate the chance of adhesion formation after laparoscopic salpingo-ovariolysis and determine the efficacy of early second-look laparoscopy (SLL). Prospective, randomized study (Canadian Task Force classification I). Shiraz University hospitals. Ninety women with mean duration of infertility of 7.2 years. Operative laparoscopy, with early SLL with adhesiolysis in 46 (group 1) and no SLL in 44 women (group 2). Adnexal adhesions were evaluated according to American Society for Reproductive Medicine adhesion classification. Separation of newly reformed adhesions was performed at the time of SLL. Patients were followed for a year after operation without other infertility treatment. At the time of operation in group 1, adnexal adhesions were graded as severe (class D) in 19 women, moderate (class C) in 31, mild (class B) in 28, and minimal (class A) in 14. Respective figures in group 2 were 10, 30, 34, and 14. After salpingo-ovariolysis these figures were 12, 10, 20, and 50 in group 1 and 6, 14, 17, and 51 in group 2. In group 1 in whom early second-look laparoscopy was performed, at the start of the operation these figures were 17, 20, 21, and 34, and after operation 12, 8, 20, and 52, respectively. There were 11 term pregnancies in group 1 and 15 in group 2. No women with severe adhesions in either group conceived. In group 1, chances of term pregnancy were 18.75% for those with moderate adhesions, 35.71% for women with mild adhesions, and 42.86% in patients with minimal adhesions. Respective figures in group 2 were 26.67%, 41.18%, and 57.14%. The chance of moderate and severe adhesion reformation after laparoscopic salpingo-ovariolysis was 40.2%. Although separation of these adhesions could be performed more easily at the time of early SLL, the chance of pregnancy did not increase compared with that in patients who did not undergo SLL.

  2. Anti-corrosion film formed on HAl77-2 copper alloy surface by aliphatic polyamine in 3 wt.% NaCl solution

    Energy Technology Data Exchange (ETDEWEB)

    Yu, Yinzhe; Yang, Dong; Zhang, Daquan, E-mail: zhdq@sh163.net; Wang, Yizhen; Gao, Lixin

    2017-01-15

    Highlights: • Properties of ADDD meet environment-friendly requirements. • ADDD’s inhibition efficiency is better than BTA at the low concentration. • ADDD adsorbs on the copper alloy surface by via the N atom in its amino group using flat mode. - Abstract: The corrosion inhibition of a polyamine compound, N-(4-amino-2, 3-dimethylbutyl)-2, 3-dimethylbutane-1, 4-diamine (ADDD), was investigated for HAl77-2 copper alloy in 3 wt.% NaCl solution. Electrochemical measurements, scanning electron microscopy (SEM), atomic force microscope (AFM) and Fourier transform infrared spectroscopy (FT-IR) techniques were employed for this research. The results show that ADDD strongly suppresses the corrosion of HAl77-2 alloy. The inhibition efficiency of ADDD is 98.6% at 0.5 mM, which is better than benzotriazole (BTAH) at the same concentration. Polarization curves indicate that ADDD is an anodic type inhibitor. Surface analysis suggests that a protective film is formed via the interaction of ADDD and copper. FT-IR reveals that the inhibition mechanism of ADDD is dominated by chemisorption onto the copper alloy surface to form an inhibition film. Furthermore, quantum chemical calculation and molecular dynamics (MD) simulations methods show that ADDD adsorbs on HAl77-2 surface via amino group in its molecule.

  3. The Multidisciplinary Team Conference's Decision on M-Staging in Patients with Gastric- and Gastroesophageal Cancer is not Accurate without Staging Laparoscopy

    DEFF Research Database (Denmark)

    Strandby, Rune Broni; Svendsen, Lars Bo; Fallentin, E.

    2016-01-01

    in the period 2010-2012 were retrospectively reviewed. Patient data were retrieved by searching for specific diagnosis and operation codes in the in-house system. The inclusion criteria were as follows: biopsy-verified cancer of the esophagus, gastroesophageal junction or stomach, and no suspicion of peritoneal......BACKGROUND: The implementation of the multidisciplinary team conference has been shown to improve treatment outcome for patients with gastric- and gastroesophageal cancer. Likewise, the staging laparoscopy has increased the detection of patients with disseminated disease, that is, patients who do...... carcinomatosis or liver metastases on multidisciplinary team conference before staging laparoscopy. Furthermore, an evaluation with staging laparoscopy was required. RESULTS: In total, 222 patients met the inclusion criteria. Most cancers were located in the gastroesophageal junction, n = 171 (77.0%), and most...

  4. The effect of escalating feedback on the acquisition of psychomotor skills for laparoscopy.

    Science.gov (United States)

    Van Sickle, K R; Gallagher, A G; Smith, C D

    2007-02-01

    In the acquisition of new skills that are difficult to master, such as those required for laparoscopy, feedback is a crucial component of the learning experience. Optimally, feedback should accurately reflect the task performance to be improved and be proximal to the training experience. In surgery, however, feedback typically is in vivo. The development of virtual reality training systems currently offers new training options. This study investigated the effect of feedback type and quality on laparoscopic skills acquisition. For this study, 32 laparoscopic novices were prospectively randomized into four training conditions, with 8 in each group. Group 1 (control) had no feedback. Group 2 (buzzer) had audio feedback when the edges were touched. Group 3 (voiced error) had an examiner voicing the word "error" each time the walls were touched. Group 4 (both) received both the audio buzzer and "error" voiced by the examiner All the subjects performed a maze-tracking task with a laparoscopic stylus inserted through a 5-mm port to simulate the fulcrum effect in minimally invasive surgery (MIS). A computer connected to the stylus scored an error each time the edge of the maze was touched, and the subjects were made aware of the error in the aforementioned manner. Ten 2-min trials were performed by the subjects while viewing a monitor. At the conclusion of training, all the subjects completed a 2-min trial of a simple laparoscopic cutting task, with the number of correct and incorrect incisions recorded. Group 4 (both) made significantly more correct incisions than the other three groups (F = 12.13; df = 3, 28; p < 0.001), and also made significantly fewer errors or incorrect incisions (F = 14.4; p < 0.0001). Group 4 also made three times more correct incisions and 7.4 times fewer incorrect incisions than group 1 (control). The type and quality of feedback during psychomotor skill acquisition for MIS have a large effect on the strength of skills generalization to a simple

  5. A lithium-sensitive and sodium-tolerant 3'-phosphoadenosine-5'-phosphatase encoded by halA from the cyanobacterium Arthrospira platensis is closely related to its counterparts from yeasts and plants.

    Science.gov (United States)

    Zhang, Ju-Yuan; Zou, Jie; Bao, Qiyu; Chen, Wen-Li; Wang, Li; Yang, Huanming; Zhang, Cheng-Cai

    2006-01-01

    3'-Phosphoadenosine-5'-phosphatase (PAPase) is required for the removal of toxic 3'-phosphoadenosine-5'-phosphate (PAP) produced during sulfur assimilation in various eukaryotic organisms. This enzyme is a well-known target of lithium and sodium toxicity and has been used for the production of salt-resistant transgenic plants. In addition, PAPase has also been proposed as a target in the treatment of manic-depressive patients. One gene, halA, which could encode a protein closely related to the PAPases of yeasts and plants, was identified from the cyanobacterium Arthrospira (Spirulina) platensis. Phylogenic analysis indicated that proteins related to PAPases from several cyanobacteria were found in different clades, suggesting multiple origins of PAPases in cyanobacteria. The HalA polypeptide from A. platensis was overproduced in Escherichia coli and used for the characterization of its biochemical properties. HalA was dependent on Mg2+ for its activity and could use PAP or 3'-phosphoadenosine-5'-phosphosulfate as a substrate. HalA is sensitive to Li+ (50% inhibitory concentration [IC50] = 3.6 mM) but only slightly sensitive to Na+ (IC50 = 600 mM). The salt sensitivity of HalA was thus different from that of most of its eukaryotic counterparts, which are much more sensitive to both Li+ and Na+, but was comparable to the PAPase AtAHL (Hal2p-like protein) from Arabidopsis thaliana. The properties of HalA could help us to understand the structure-function relationship underlying the salt sensitivity of PAPases. The expression of halA improved the Li+ tolerance of E. coli, suggesting that the sulfur-assimilating pathway is a likely target of salt toxicity in bacteria as well.

  6. CAPABILITIES OF VIDEO-ASSISTED LAPAROSCOPY IN THE DIAGNOSIS AND TREATMENT OF PERFORATION OF THE SMALL INTESTINE AND MECKEL’S DIVERTICULUM (2 CLINICAL OBSERVATIONS

    Directory of Open Access Journals (Sweden)

    I. I. Kirsanov

    2016-01-01

    Full Text Available BACKGROUND Misdiagnosis of acute appendicitis reaches 40%. Video laparoscopy allows the correct diagnosis to be establishedin 98.1%, and identify the other disease excluding the initial diagnosisin 1.6%, as well as to determine the optimal surgical approach and perform minimally invasive surgery, if possible.MATERIAL Clinical observation of 2 cases of perforation of the small intestine.CONCLUSION The use of laparoscopy in acute surgical disease of abdominal organs allows to establish the correct diagnosis and properly provide a therapy with a minimal surgical trauma.

  7. Feasibility and nutritional impact of laparoscopy-assisted subtotal gastrectomy for early gastric cancer in the upper stomach.

    Science.gov (United States)

    Kosuga, Toshiyuki; Hiki, Naoki; Nunobe, Souya; Noma, Hisashi; Honda, Michitaka; Tanimura, Shinya; Sano, Takeshi; Yamaguchi, Toshiharu

    2014-06-01

    Laparoscopy-assisted total gastrectomy (LATG) is commonly performed for early gastric cancer (EGC) in the upper stomach; however, the incidence of anastomotic complications remains high, and postoperative nutritional status is not satisfactory. This study aimed to evaluate the feasibility and nutritional impact of a novel surgical procedure, laparoscopy-assisted subtotal gastrectomy (LAsTG). This was a retrospective study of 167 patients with EGC in the upper stomach. Of these, 57 patients underwent LAsTG, while 110 patients underwent LATG. Postoperative change in body weight, and serum concentration of albumin (Alb) and total protein (TP) were compared between the LAsTG and LATG groups. Analysis of covariance (ANCOVA) was used to assess the influence of potential confounding factors. Frequency of anastomotic complications was significantly higher in the LATG group (16.3 %) than in the LAsTG group (5.3 %, P = 0.040). Postoperative recovery of body weight at 12 months after surgery was significantly better in the LAsTG group (89.8 ± 1.4 %) than in the LATG group (82.1 ± 1.0 %, P nutritional status.

  8. Laparoscopy in management of appendicitis in high-, middle-, and low-income countries: a multicenter, prospective, cohort study.

    Science.gov (United States)

    2018-04-05

    Appendicitis is the most common abdominal surgical emergency worldwide. Differences between high- and low-income settings in the availability of laparoscopic appendectomy, alternative management choices, and outcomes are poorly described. The aim was to identify variation in surgical management and outcomes of appendicitis within low-, middle-, and high-Human Development Index (HDI) countries worldwide. This is a multicenter, international prospective cohort study. Consecutive sampling of patients undergoing emergency appendectomy over 6 months was conducted. Follow-up lasted 30 days. 4546 patients from 52 countries underwent appendectomy (2499 high-, 1540 middle-, and 507 low-HDI groups). Surgical site infection (SSI) rates were higher in low-HDI (OR 2.57, 95% CI 1.33-4.99, p = 0.005) but not middle-HDI countries (OR 1.38, 95% CI 0.76-2.52, p = 0.291), compared with high-HDI countries after adjustment. A laparoscopic approach was common in high-HDI countries (1693/2499, 67.7%), but infrequent in low-HDI (41/507, 8.1%) and middle-HDI (132/1540, 8.6%) groups. After accounting for case-mix, laparoscopy was still associated with fewer overall complications (OR 0.55, 95% CI 0.42-0.71, p introduction, laparoscopy could significantly improve outcomes for patients in low-resource environments. NCT02179112.

  9. A PROSPECTIVE STUDY ON LOCAL ANAESTHETIC INFILTRATION FOR POSTOPERATIVE PAIN RELIEF AFTER LAPAROSCOPY

    Directory of Open Access Journals (Sweden)

    Peter Manoharan Chellapa

    2017-05-01

    Full Text Available BACKGROUND Laparoscopic surgery is a modern surgical technique in which operations are performed through small incisions and with the aid of a camera. Pain is the most common complaint following any surgery, but as compared to open surgery, the severity of pain is much lower in patients undergoing surgery via laparoscopy. The pain following laparoscopic procedure can be divided into three components- parietal pain, visceral pain and shoulder pain. The use of local long-acting anaesthetics reduces postoperative parietal pain. In this study, we tested the hypothesis that local anaesthetics instilled at the end of laparoscopic procedure are able to prevent postoperative pain during the first 24 hours post-surgery. The outcome measures were pain scores, analgesic consumption and time to analgesic request. MATERIALS AND METHODS This was a prospective study conducted by the surgical department, Pondicherry Institute of Medical Sciences for a period of 13 months. The study comprised of 50 patients with an ASA I or II who underwent laparoscopic procedures between April 2016 to May 2017. Patients in this study were randomly categorised equally into two groups; in the study group (Group A patients received local anaesthetic infiltration with bupivacaine, while in the control group (Group B, patients did not receive local anaesthetic infiltration. Following history taking and physical examination, patients were subjected to routine laboratory investigations and ultrasonogram. Contrast-enhanced computerised tomography was done in patients when indicated and following which patients diagnosed with acute appendicitis or who had symptomatic cholelithiasis were taken up for laparoscopic surgery. In the study group, local anaesthetic was instilled at the end of surgery after port removal. The total volume of infiltrated solution in the study group was 10 mL divided proportionally according to the length of the skin incisions (3 mL for 10 mm incisions and 2 m

  10. Surgeons’ muscle load during robotic-assisted laparoscopy performed with a regular office chair and the preferred of two ergonomic chairs

    DEFF Research Database (Denmark)

    Dalager, T.; Jensen, P. T.; Winther, T. S.

    2018-01-01

    associated with poor ergonomics and musculoskeletal pain. The ergonomic condition in the robotic console is partially dependent upon the chair provided, which often is a regular office chair. Our study quantified and compared the muscular load during robotic-assisted laparoscopy using one of two custom built...

  11. Operative outcomes of single-port-access laparoscopy-assisted vaginal hysterectomy compared with single-port-access total laparoscopic hysterectomy

    Directory of Open Access Journals (Sweden)

    Bo Sung Yoon

    2014-12-01

    Conclusion: SPA-TLH with laparoscopic vaginal suture required the longest operating time, and hemoglobin changes were smaller in the SPA-LAVH group than in the other groups. In patients undergoing SPA laparoscopy, we recommend the SPA-LAVH procedure.

  12. Laparoscopy rol in acute cases of lower abdomen in women. Review of the last 10 years in the British Hospital Gynecology Service

    International Nuclear Information System (INIS)

    Scasso, J; Scasso, S; Laufer, J; Alves, J; Sierra, I; Varela, S

    2011-01-01

    Acute lower abdominal episodes in women are the most frequent cause of consultation at the emergency room. The role of laparoscopy as a diagnostic and therapeutic tool, especially in women, has been well established. It allows the visualization of the entire abdominal cavity as well as the diagnosis delays and its complications in the evolution

  13. Is the aptitude of manual skills enough for assessing the training effect of students using a laparoscopy simulator?

    Directory of Open Access Journals (Sweden)

    Zielke, Andreas

    2005-12-01

    Full Text Available Background: The aim of this study was to determine if students are suitable candidates to assess the learning effect through a virtual reality laparoscopy simulator (LapSim®. Materials and methods: 14 medical students in their final year without any previous experience with a virtual reality simulator were recruited as subjects. In order to establish a "base line" all subjects were instructed into the "clip application" task - a basis module of the laparoscopy simulator - at the beginning of the study. They were then randomized into two groups. Group A (n=7 had parameter adjusted to an easy level of performance, while group B (n=7 was adjusted to a difficult level. In both levels, errors simulated clinically relevant situations such as vessel rupture and subsequent bleeding. Each participant had to repeat the clip application task ten times consecutively. Results: The mean time for completion ten repetitions was 15 min pro participant in group A and 20 min in group B. From the first to the fifth repetition group A improved significantly the task completion time from 238.9 s to 103.3 s (p<0.007 consecutively and also improved the error score from 312 to 177 (p<0.07. At the tenth repetition they increased the task completion time from 103.3 s to 152.2 s (p<0.09 and increased their error score from 177 to 202 (p=0.25. From the first to the fifth repetition group B also improved the task completion time from 131.6 s to 104.5 s (p<0.31 consecutively and improved the error score from 235 to 208 (p<0.32 but at the tenth repetition they increased the task completion time from 104.5 s to 142.4 s (p<0.45 and clearly increased their error score from 208 to 244 (p<0.38. Conclusion: These results suggest that medical students, who lack clinical background, may be not suitable candidates for assessing the efficiency of a training model using a laparoscopy simulator. If medical students are appointed for such studies, they should receive didactic sessions in

  14. Hybrid Assistive Limb Exoskeleton HAL in the Rehabilitation of Chronic Spinal Cord Injury: Proof of Concept; the Results in 21 Patients.

    Science.gov (United States)

    Jansen, Oliver; Grasmuecke, Dennis; Meindl, Renate C; Tegenthoff, Martin; Schwenkreis, Peter; Sczesny-Kaiser, Matthias; Wessling, Martin; Schildhauer, Thomas A; Fisahn, Christian; Aach, Mirko

    2018-02-01

    The use of mobile exoskeletons is becoming more and more common in the field of spinal cord injury (SCI) rehabilitation. The hybrid assistive limb (HAL) exoskeleton provides a tailored support depending on the patient's voluntary drive. After a pilot study in 2014 that included 8 patients with chronic SCI, this study of 21 patients with chronic SCI serves as a proof of concept. It was conducted to provide further evidence regarding the efficacy of exoskeletal-based rehabilitation. Functional assessment included walking speed, distance, and time on a treadmill, with additional analysis of functional mobility using the following tests: 10-meter walk test (10MWT), timed up and go (TUG) test, 6-minute walk test (6MWT), and the walking index for SCI II (WISCI-II) score. After a training period of 90 days, all 21 patients significantly improved their functional and ambulatory mobility without the exoskeleton. Patients were assessed by the 6MWT, the TUG test, and the 10MWT, which also indicated an increase in the WISCI-II score along with significant improvements in HAL-associated walking speed, distance, and time. Although, exoskeletons are not yet an established treatment in the rehabilitation of spinal cord injuries, the devices will play a more important role in the future. The HAL exoskeleton training enables effective, body weight-supported treadmill training and is capable of improving ambulatory mobility. Future controlled studies are required to enable a comparison of the new advances in the field of SCI rehabilitation with traditional over-ground training. Copyright © 2017 Elsevier Inc. All rights reserved.

  15. Immune and stress mediators in response to bilateral adnexectomy: comparison of single-port access and conventional laparoscopy in a porcine model.

    Science.gov (United States)

    Gracia, Meritxell; Sisó, Cristian; Martínez-Zamora, M Àngels; Sarmiento, Laura; Lozano, Francisco; Arias, Maria Teresa; Beltrán, Joan; Balasch, Juan; Carmona, Francisco

    2014-01-01

    To evaluate systemic markers of immune and stress responses after bilateral adnexectomy performed using 2 different laparoscopic techniques in pigs. Prospective comparative study (Canadian Task Force classification II-2). University teaching hospital, research hospital, and tertiary care center. Twenty female Yorkshire pigs undergoing laparoscopic surgery. Animals underwent bilateral salpingo-oophorectomy (ovary and fallopian tube extraction), performed via conventional laparoscopy (n = 10) or the single-port access approach (n = 10). Injury provokes an acute-phase response, primarily produced by cytokines. The inflammatory response has been well described for major surgery and for conventional laparoscopy; however, little information is currently available for single-port laparoscopy, and none in the gynecologic field. This is the first study to compare serum cytokine interleukin 6 (IL-6) and tumor necrosis factor alpha (TNF-α) concentrations at baseline and in the early postoperative period (2, 4, and 20 hours) after bilateral salpingo-oophorectomy performed via conventional laparoscopy (n = 10) or single-port access (n = 10) in a porcine model. The stress response was measured using glucose and cortisol concentrations and the animals' response to surgery via a 6-category observation-based behavior test. Both IL-6 and TNF-α concentrations peaked at 4 hours after surgery, and were significantly lower in the single-port access group (p = .02) than in the conventional laparoscopy group (p = .02). In addition, in the single-port access group, concentrations of stress markers were slightly lower at all intervals recorded and were statistically significant at 2 hours after the operation for glucose concentration (mean [SD], 164.50 [26.73] mg/dL for conventional laparoscopy vs 86.50 [17.93] mg/dL for single-port access; p = .02). Evidence of improved inflammatory and stress responses was recorded in the minimally invasive single-port group. More clinical

  16. Molecular structure and vibrational spectra of MHal3 (M = Sc, Y, La, Lu; Hal = F, Cl, Br, I): ab initio calculations by the CISD+Q method

    International Nuclear Information System (INIS)

    Solomonik, V.G.; Marochko, O.Yu.

    2000-01-01

    Structure and vibrational spectra of MHal 3 molecules (M = Sc, Y, La, Lu; Hal = F, Cl, Br, I) are studied by the CISD+Q method. It is ascertained that equilibrium configuration of nuclei in all the molecules, except LaF 3 , is plane (D 3h symmetry), while that of LaF 3 molecule - pyramidal (C 3c symmetry). Results of the calculations are compared with previously published experimental data. Band reference in IR spectra of ScBr 3 , YF 3 and YCl 3 molecules has been corrected [ru

  17. Molecular imaging of head and neck cancers. Perspectives of PET/MRI; Molekulare Bildgebung bei Kopf-ï]¿Hals-Tumoren. Perspektive der PET-MRT

    Energy Technology Data Exchange (ETDEWEB)

    Stumpp, P.; Kahn, T. [Universitaetsklinikum Leipzig AoeR, Klinik und Poliklinik fuer Diagnostische und Interventionelle Radiologie, Leipzig (Germany); Purz, S.; Sabri, O. [Universitaetsklinikum Leipzig, Klinik und Poliklinik fuer Nuklearmedizin, Leipzig (Germany)

    2016-07-15

    The {sup 18}F-fluorodeoxyglucose positron emission tomography-computed tomography ({sup 18}F-FDG-PET/CT) procedure is a cornerstone in the diagnostics of head and neck cancers. Several years ago PET-magnetic resonance imaging (PET/MRI) also became available as an alternative hybrid multimodal imaging method. Does PET/MRI have advantages over PET/CT in the diagnostics of head and neck cancers ?The diagnostic accuracy of the standard imaging methods CT, MRI and PET/CT is depicted according to currently available meta-analyses and studies concerning the use of PET/MRI for these indications are summarized. In all studies published up to now PET/MRI did not show superiority regarding the diagnostic accuracy in head and neck cancers; however, there is some evidence that in the future PET/MRI can contribute to tumor characterization and possibly be used to predict tumor response to therapy with the use of multiparametric imaging. Currently, {sup 18}F-FDG-PET/CT is not outperformed by PET/MRI in the diagnostics of head and neck cancers. The additive value of PET/MRI due to the use of multiparametric imaging needs to be investigated in future research. (orig.) [German] Die {sup 18}F-Fluordesoxyglukose-Positronenemissionstomographie-Computertomographie ({sup 18}F-FDG-PET-CT) hat ihren festen Stellenwert in der Diagnostik von Kopf-Hals-Tumoren. Seit einigen Jahren ist die PET-MRT als weitere hybride Bildgebungsmodalitaet verfuegbar. Bringt die PET-MRT Fortschritte bei der Diagnostik von Kopf-Hals-Tumoren ?Darstellung der diagnostischen Genauigkeit der bisherigen Bildgebungsmethoden CT, MRT und PET-CT anhand von Metaanalysen und Zusammenfassung der bisherigen Publikationen zur PET-MRT auf diesem Gebiet. Die PET-MRT zeigt in allen bisherigen Studien keine Ueberlegenheit bzgl. der diagnostischen Genauigkeit von Kopf-Hals-Tumoren. Sie kann jedoch durch die multiparametrische Diagnostik perspektivisch Beitraege zur Tumorcharakterisierung und damit moeglicherweise Voraussagen zum

  18. A systematic review of the accuracy and indications for diagnostic laparoscopy prior to curative-intent resection of gastric cancer.

    Science.gov (United States)

    Leake, Pierre-Anthony; Cardoso, Roberta; Seevaratnam, Rajini; Lourenco, Laercio; Helyer, Lucy; Mahar, Alyson; Law, Calvin; Coburn, Natalie G

    2012-09-01

    Despite improved preoperative imaging techniques, patients with incurable or unresectable gastric cancer are still subjected to non-therapeutic laparotomy. Diagnostic laparoscopy (DL) has been advocated by some to be essential in decision-making in gastric cancer. We aimed to identify and synthesize findings on the value of DL for patients with gastric cancer, in this era of improved preoperative imaging. Electronic literature searches were conducted using Medline, EMBASE, and the Cochrane Central Register of Controlled Trials from January 1, 1998 to December 31, 2009. We calculated the change in management and avoidance of laparotomy based on the addition of DL and laparoscopic ultrasound (LUS). The accuracy, agreement (kappa), sensitivity, and specificity of DL in assessing tumor extent, nodal involvement, and the presence of metastases with respect to the gold standard (pathology) were also calculated. Twenty-one articles were included. DL showed moderate to substantial agreement with final pathology for T stage, but only fair agreement for N stage. For M staging, DL had an overall accuracy, sensitivity, and specificity ranging from 85-98.9%, 64.3-94%, and 80-100%, respectively. The use of DL altered treatment in 8.5-59.6% of cases, avoiding laparotomy in 8.5-43.8% of cases. LUS provided additional benefit in 5.8-7.2% of cases. Despite evolving preoperative imaging techniques, diagnostic laparoscopy continues to be of substantial value in staging patients with gastric cancer and in avoiding unnecessary laparotomy. The current data support DL for all patients with advanced gastric cancer.

  19. Acceptance, Prevalence and Indications for Robot-Assisted Laparoscopy - Results of a Survey Among Urologists in Germany, Austria and Switzerland.

    Science.gov (United States)

    Imkamp, Florian; Herrmann, Thomas R W; Tolkach, Yuri; Dziuba, Sebastian; Stolzenburg, Jens U; Rassweiler, Jens; Sulser, Tullio; Zimmermann, Uwe; Merseburger, Axel S; Kuczyk, Markus A; Burchardt, Martin

    2015-01-01

    Robotic-assisted laparoscopy (RAL) is being widely accepted in the field of urology as a replacement for conventional laparoscopy (CL). Nevertheless, the process of its integration in clinical routines has been rather spontaneous. To determine the prevalence of robotic systems (RS) in urological clinics in Germany, Austria and Switzerland, the acceptance of RAL among urologists as a replacement for CL and its current use for 25 different urological indications. To elucidate the practice patterns of RAL, a survey at hospitals in Germany, Austria and Switzerland was conducted. All surgically active urology departments in Germany (303), Austria (37) and Switzerland (84) received a questionnaire with questions related to the one-year period prior to the survey. The response rate was 63%. Among the participants, 43% were universities, 45% were tertiary care centres, and 8% were secondary care hospitals. A total of 60 RS (Germany 35, Austria 8, Switzerland 17) were available, and the majority (68%) were operated under public ownership. The perception of RAL and the anticipated superiority of RAL significantly differed between robotic and non-robotic surgeons. For only two urologic indications were more than 50% of the procedures performed using RAL: pyeloplasty (58%) and transperitoneal radical prostatectomy (75%). On average, 35% of robotic surgeons and only 14% of non-robotic surgeons anticipated RAL superiority in some of the 25 indications. This survey provides a detailed insight into RAL implementation in Germany, Austria and Switzerland. RAL is currently limited to a few urological indications with a small number of high-volume robotic centres. These results might suggest that a saturation of clinics using RS has been achieved but that the existing robotic capacities are being utilized ineffectively. The possible reasons for this finding are discussed, and certain strategies to solve these problems are offered. © 2015 S. Karger AG, Basel.

  20. Evaluation of the economic and clinical feasibility of introducing rigid endoscopy and laparoscopy to a small animal general practice.

    Science.gov (United States)

    Jones, Kelly; Case, J Brad; Evans, Brian; Monnet, Eric

    2017-04-01

    OBJECTIVE To evaluate the economic and clinical feasibility of introducing rigid endoscopy and laparoscopy to a small animal general practice. DESIGN Prospective study. SAMPLE A single 2-veterinarian small animal practice in southern California. PROCEDURES In early 2012, endoscopic equipment was purchased, and both veterinarians in the practice undertook training in rigid endoscopic and laparoscopic procedures. Subsequently, information for client-owned animals that underwent endoscopic and laparoscopic procedures during a 12-month period (2012 to 2013) was collected. Cost of equipment and training, revenue generated, specific procedures performed, surgery time, complications, and client satisfaction were evaluated. RESULTS 78 endoscopic procedures were performed in 73 patients, including 71 dogs, 1 cat, and 1 rabbit. Cost of endoscopic and laparoscopic equipment and training in the first year was $14,809.71; most equipment was financed through a 5-year lease at a total cost of $57,507.70 ($ 10,675.20/y). Total revenue generated in the first year was $50,423.63. The most common procedures performed were ovariectomy (OVE; n = 49), prophylactic gastropexy (6), and video otoscopy (12). Mean ± SD surgery times for OVE (n = 44) and for OVE with gastropexy (5) were 63.7 ± 19.7 minutes and 73.0 ± 33.5 minutes; respectively. Twelve of 54 patients undergoing laparoscopic procedures experienced minor intraoperative complications. Conversion to laparotomy was not required in any patient. There were no major complications. All 49 clients available for follow-up were satisfied. CONCLUSIONS AND CLINICAL RELEVANCE With appropriate training and equipment, incorporation of basic rigid endoscopy and laparoscopy may be feasible in small animal general practice. However, results of the present study are not applicable to all veterinarians and practice settings, and patient safety considerations should always be paramount.

  1. Hand-assisted laparoscopic live donor nephrectomy – initial ...

    African Journals Online (AJOL)

    No surgical morbidity is reported. We describe one donor mortality. Discussion. Our results compare favourably with those documented in the literature. Aberrant renal vascular anatomy had no adverse effect on operative or warm ischaemic times. HALLDN proved beneficial in patients with a high BMI. Conclusion. Surgical ...

  2. Treatment changes and long-term recurrence rates after hexaminolevulinate (HAL) fluorescence cystoscopy: does it really make a difference in patients with non-muscle-invasive bladder cancer (NMIBC)?

    Science.gov (United States)

    Geavlete, Bogdan; Multescu, Razvan; Georgescu, Dragos; Jecu, Marian; Stanescu, Florin; Geavlete, Petrisor

    2012-02-01

    •  To evaluate in a prospective, randomized study the impact of hexaminolevulinate blue-light cystoscopy (HAL-BLC) on the diagnostic accuracy and treatment changes in cases of non-muscle invasive bladder cancer (NMIBC) compared with standard white-light cystoscopy (WLC). •  To compare the long-term recurrence rates in the two study arms. •  In all, 362 patients suspected of NMIBC were included in the trial based on positive urinary cytology and/or ultrasonographic suspicion of bladder tumours and underwent transurethral resection of bladder tumours. •  A single postoperative mytomicin-C instillation was performed in all cases, intravesical chemotherapy for intermediate-risk patients and BCG instillations for high-risk cases. •  The follow-up protocol consisted of urinary cytology and WLC every 3 months for 2 years. •  Only first-time recurrences after the initial diagnosis were considered. •  In the 142 patients with NMIBC in the HAL-BLC series, tumour detection rates significantly improved for carcinoma in situ, pTa andoverall cases. •  In 35.2% of the cases, additional malignant lesions were found by HAL-BLC and consequently, the recurrence- and progression-risk categories of patients and subsequent treatment improved in 19% of the cases due to fluorescence cystoscopy. •  In all, 125 patients in the HAL-BLC group and 114 of the WLC group completed the follow-up. •  The recurrence rate at 3 months was lower in the HAL-BLC series (7.2% vs 15.8%) due to fewer 'other site' recurrences when compared with the WLC series (0.8% vs 6.1%). •  The 1 and 2 years recurrence rates were significantly decreased in the HAL-BLC group compared with the WLC group (21.6% vs 32.5% and 31.2% vs 45.6%, respectively). •  HAL-BLC was better than WLC for detecting NMIBC cases and improved tumour detection rates. •  HAL-BLC significantly modified the postoperative treatment of cases. •  The 3 months, 1 and 2 years recurrence rates were

  3. Effect of TFE on the Helical Content of AK17 and HAL-1 Peptides: Theoretical Insights into the Mechanism of Helix Stabilization.

    Science.gov (United States)

    Vymětal, Jiří; Bednárová, Lucie; Vondrášek, Jiří

    2016-02-18

    Fluorinated alcohols such as 2,2,2-trifluoroethanol (TFE) are among the most frequently used cosolvents in experiment studies of peptides. They have significant effects on secondary structure and a particularly strong promotion of α-helix is induced by TFE. In this study we validated recently proposed force field parameters for TFE in molecular dynamics simulations with two model peptides-alanine-rich AK-17 and antimicrobial peptide halictine-1 (HAL-1). In the case of HAL-1, we characterized the effect of TFE on this peptide experimentally by ECD spectroscopy. Our TFE model in question reproduced the helix-promoting effect of TFE and provided insight into the mechanisms of TFE action on peptides. Our simulations confirmed the preferential interaction of TFE molecules with α-helices, although the TFE molecules accumulate in the vicinity of the peptides in various conformations. Moreover, we observed a significant effect of TFE on the thermodynamics of the helix-coil transition and a change in local conformational preferences in the unfolded (coil) state induced by TFE. In addition, our simulation-based analysis suggests that different mechanisms participate in helix stabilization in both model peptides in water and TFE solution. Our results thus support the picture of complex TFE action on peptides that is further diversified by the identity and intrinsic properties of the peptide.

  4. Laparoscopy to predict the result of primary cytoreductive surgery in advanced ovarian cancer patients (LapOvCa-trial): a multicentre randomized controlled study

    International Nuclear Information System (INIS)

    Rutten, Marianne J; Pijnenborg, Johanna MA; Schreuder, Henk WR; Schutter, Eltjo MJ; Spijkerboer, Anje M; Wensveen, Celesta WM; Zusterzeel, Petra; Mol, Ben Willem J; Kenter, Gemma G; Buist, Marrije R; Gaarenstroom, Katja N; Van Gorp, Toon; Meurs, Hannah S van; Arts, Henriette JG; Bossuyt, Patrick M; Ter Brugge, Henk G; Hermans, Ralph HM; Opmeer, Brent C

    2012-01-01

    Standard treatment of advanced ovarian cancer is surgery and chemotherapy. The goal of surgery is to remove all macroscopic tumour, as the amount of residual tumour is the most important prognostic factor for survival. When removal off all tumour is considered not feasible, neoadjuvant chemotherapy (NACT) in combination with interval debulking surgery (IDS) is performed. Current methods of staging are not always accurate in predicting surgical outcome, since approximately 40% of patients will have more than 1 cm residual tumour after primary debulking surgery (PDS). In this study we aim to assess whether adding laparoscopy to the diagnostic work-up of patients suspected of advanced ovarian carcinoma may prevent unsuccessful primary debulking surgery for ovarian cancer. Multicentre randomized controlled trial, including all gynaecologic oncologic centres in the Netherlands and their affiliated hospitals. Patients are eligible when they are planned for PDS after conventional staging. Participants are randomized between direct PDS or additional diagnostic laparoscopy. Depending on the result of laparoscopy patients are treated by PDS within three weeks, followed by six courses of platinum based chemotherapy or with NACT and IDS 3-4 weeks after three courses of chemotherapy, followed by another three courses of chemotherapy. Primary outcome measure is the proportion of PDS's leaving more than one centimetre tumour residual in each arm. In total 200 patients will be randomized. Data will be analysed according to intention to treat. Patients who have disease considered to be resectable to less than one centimetre should undergo PDS to improve prognosis. However, there is a need for better diagnostic procedures because the current number of debulking surgeries leaving more than one centimetre residual tumour is still high. Laparoscopy before starting treatment for ovarian cancer can be an additional diagnostic tool to predict the outcome of PDS. Despite the absence

  5. Laparoscopy hepatic biopsy through cauterization Biópsia hepática laparoscopica por cauterização

    Directory of Open Access Journals (Sweden)

    Alexandra Pinheiro Fantinatti

    2003-08-01

    Full Text Available Hepatic biopsy was realized through laparoscopy with simultaneous cauterization in the present study, whose principal aim was to evaluate the efficacy of the applied method and to study its effects in the liver of healthy dogs. Furthermore, we tried to verify the main hematological and chemistry profile alterations related to the hepatic function, and to investigate the viability of the fragments collected by histopathology. To attain this objective, 21 clinically healthy dogs, weighing between 10 and 15kg were submitted to hepatic biopsy with forceps connected to the cautery. Cautery was performed by applying radiofrequency energy at 45 watts. Forty-two hepatic biopsies through laparoscopy were conducted in the animals. At group I one hepatic fragment per animal was collected, at group II two hepatic fragments per animal were collected, and at group III three fragments were collected. Hematocrit and alanine-aminotransferase measurements were employed to evaluate the animals at the pre-operative period, at four and six hour post-operative, and at day 30 post-operative. The results revealed that the procedure was safe and effective for hepatic biopsy in dogs. There were no clinical alterations related to the technique. The fragments collected were viable for histopathology. Hepatic biopsy through laparoscopy with simultaneous cauterization is an effective and usefull method in dogs.Este estudo visou avaliar a eficácia do método de biópsia hepática laparoscópica por cauterização e estudar os seus efeitos no fígado de cães sadios. Além disso, procurou-se verificar as principais alterações hematológicas e bioquímicas-séricas relacionadas às funções hepáticas e averiguar a viabilidade dos fragmentos colhidos por exame de histopatologia. Para tanto, 21 cães clinicamente sadios pesando entre 10 e 15kg, foram separados em três grupos de sete animais cada grupo. As amostras foram retiradas da borda no lobo lateral esquerdo

  6. Halı Sektöründe İhracat Yapan Firmaların Markalaşma Düzeylerinin

    Directory of Open Access Journals (Sweden)

    Mustafa METE

    2017-07-01

    Full Text Available Dış pazarlar, tehditleri ve fırsatları bünyesinde barındırmanın yanı sıra ulusal sınırlarla yetinmeyerek tüm dünyada adından söz ettirmek isteyen firmaların riskleri göze alarak zorlu rekabet ortamı içerisine girdikleri tespit edilmiştir. Markalaşma üzerine ülkemizdeki çalışmaların sayısının oldukça yetersiz olduğu, özellikle halı sektöründe ise daha az olduğu görülmektedir. Bu çalışmada Türk ekonomisinde önemli bir yere sahip olan halı sektörü ihracatında markalaşmanın etkilerinin tespit edilmesi amaçlanmıştır. Bu amaç doğrultusunda Gaziantep ilinde faaliyet göstermekte olan ve ihracat yapan halı firmaları üzerinde çalışma gerçekleştirilmiştir. Çalışmaya toplam 50 firma dahil edilmiştir. Veriler anket yöntemiyle elde edilmiştir. Çalışmadan elde edilen verilerin analizi SPSS 16.0 programı ile yapılmıştır. Yapılan analizler neticesinde bir marka adı altında ihracat yapan firmaların ihracat performansının daha yüksek olduğu, Turquality desteği alan firmaların son 3 yıllık ihracat ve satış performansının daha yüksek olduğu tespit edilmiştir.

  7. Combined hysteroscopy-laparoscopy approach for excision of pelvic nitinol fragment from Essure contraceptive device: Role of intraoperative fluoroscopy for uterine conservation.

    Science.gov (United States)

    Sills, E Scott; Palermo, Gianpiero D

    2016-07-01

    We describe the successful removal of a pelvic contraceptive coil in a symptomatic 46-year-old patient who had Essure devices for four years, using a combined hysteroscopy-laparoscopy-fluoroscopy approach. Following normal hysteroscopy, at laparoscopy the right Essure implant was disrupted and its outer nitinol coil had perforated the fallopian tube. However, the inner rod (containing polyethylene terephthalate) had migrated to an extrapelvic location, near the proximal colon. In contrast, the left implant was situated within the corresponding tube. Intraoperative fluoroscopy was used to confirm complete removal of the device, which was further verified by postoperative computed tomography. The patient's condition improved after surgery and she continues to do well. This is the first report to describe this technique in managing Essure complications remote from time of insertion. Our case highlights the value and limitations of preoperative and intraoperative imaging to map Essure fragment location before surgery.

  8. Influence of promoting blood circulation to remove blood stasis combined with laparoscopy on serum MCP-1, RANTES, oxidative stress and hormones in infertile patients with endometriosis

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    Xiao-Sha Zhang

    2017-11-01

    Full Text Available Objective: To observe the influence of promoting blood circulation to remove blood stasis combined with laparoscopy on serum MCP-1, RANTES, oxidative stress and hormones in infertile patients with endometriosis. Methods: A total of 60 infertile patients with endometriosis were randomly divided into observation group (30 cases and control group (30 cases. Observation group: promoting blood circulation to remove blood stasis combined with laparoscopy; control group: patients were treated only by laparoscopy. Recording and comparing the levels of MCP-1, RANTES, oxidative stress and hormones before and after treatment. Results: (1 Before treatment, there was no statistically significant difference in the serum MCP-1, RANTES, AOPP, MDA, SOD, levels between the two groups. After treatment, compared with the same group before treatment, the serum RANTES, AOPP, MDA levels of the two groups were significantly lower, the serum SOD level of the two groups were significantly higher, and those levels of observation group were significantly better than the control group, there was significant difference between the two groups. (2 Before treatment, there was no statistically significant difference in the serum FSH, LH, E2, P, PRL levels between the two groups. After treatment, compared with the same group before treatment, the serum FSH, LH, P, PRL levels of the two groups were significantly higher, the serum E2 level of the two groups were significantly lower, and those levels of observation group were significantly better than the control group, there was significant difference between the two groups. Conclusion: Promoting blood circulation to remove blood stasis combined with laparoscopy for infertile patients with endometriosis can reduce the levels of serum MCP-1, RANTES, oxidative stress, hormones and be beneficial to protect their uterine function.

  9. Impact of Obesity on Surgical Treatment for Endometrial Cancer: A Multicenter Study Comparing Laparoscopy vs Open Surgery, with Propensity-Matched Analysis.

    Science.gov (United States)

    Uccella, Stefano; Bonzini, Matteo; Palomba, Stefano; Fanfani, Francesco; Ceccaroni, Marcello; Seracchioli, Renato; Vizza, Enrico; Ferrero, Annamaria; Roviglione, Giovanni; Casadio, Paolo; Corrado, Giacomo; Scambia, Giovanni; Ghezzi, Fabio

    2016-01-01

    To evaluate the impact of obesity on the outcomes of surgical treatment for endometrial cancer in general and also comparing laparoscopic and open abdominal approach. Retrospective case-control study (Canadian Task Force classification II-1). Obstetrics and Gynecology Department, University of Insubria, Varese, Catholic University of the Sacred Heart, Rome, International School of Surgical Anatomy, Sacred Heart Hospital, Negrar, and Sant'Orsola-Malpighi Hospital, Bologna, Italy. Data of consecutive patients who underwent surgery for endometrial cancer in 4 centers were reviewed. Univariate and multivariable analyses were performed. Adjustment for potential selection bias in surgical approach was made using propensity score (PS) matching. Laparoscopic or open surgical treatment for endometrial cancer. A total of 1266 patients were included, including 764 in the laparoscopy group and 502 in the open surgery group. A total of 391 patients (30.9%) were obese, including 238 (18.8%) with class I obesity, 89 (7%) with class II obesity, and 64 (5.1%) with class III obesity. The total number of complications, risk of wound complications, and venous thromboembolic events were higher in obese women compared with nonobese women. Blood transfusions, incidence/severity of postoperative complications, and postoperative hospital stay were significantly higher in the open surgery group compared with the laparoscopy group, irrespective of obesity. These differences remained significant in both multivariable analysis and PS-matched analysis. The percentage of patients who received lymphadenectomy declined significantly in patients with BMI ≥40 in both the laparoscopy and open surgery groups. Conversions from the initially intended minimally invasive approach to open surgery were 1.1% to 2.2% for women with BMI obese women in the laparoscopic group. Laparoscopy for endometrial cancer retains its advantages over open surgery, even in obese patients. However, operating on obese

  10. Diagnostic Laparoscopy as Decision Tool for Re-recurrent Inguinal Hernia Treatment Following Open Anterior and Laparo-Endoscopic Posterior Repair

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    Ferdinand Köckerling

    2017-05-01

    Full Text Available IntroductionThe guidelines of the international hernia societies recommend posterior repair in laparo-endoscopic technique for recurrent inguinal hernia after open anterior mesh repair and, conversely, open anterior repair for recurrence after laparo-endoscopic primary repair. Even when these guidelines are followed, already 1 year after repair a re-recurrence rate of 1–2% must be expected, with that rate rising further in the subsequent years. Accordingly, increasingly more patients with re-recurrence after anterior and posterior mesh implantation must be treated, which constitutes a problem that to date has been investigated in only very few studies. Hence, there are no well-founded recommendations. This paper now presents a number of case reports aimed at identifying the role of explorative laparoscopy as decision tool for re-recurrent inguinal hernia treatment.Patients and methodsBased on three case reports the role of explorative laparoscopy as decision tool for re-recurrent inguinal hernia treatment is presented below.ResultsIn all the three cases described explorative laparoscopy played a key role as decision tool when deciding how best to treat re-recurrence after anterior and posterior inguinal hernia repair. In one case severe adhesions after robotic prostatectomy and in another case correct placement of the mesh in the posterior plane, adhesions from the cecum to the groin region and no definitive finding of a re-recurrence resulted in an open repair. In the third case, an insufficient laparoscopic posterior mesh placement made the re-recurrent TAPP procedure relatively easy.ConclusionExplorative laparoscopy is an important decision tool for re-recurrent inguinal hernia treatment to minimize the risks of the procedure for the patients.

  11. Single-port (OctoPort) assisted extracorporeal ovarian cystectomy for the treatment of large ovarian cysts: compare to conventional laparoscopy and laparotomy.

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    Chong, Gun Oh; Hong, Dae Gy; Lee, Yoon Soon

    2015-01-01

    To evaluate single-port assisted extracorporeal cystectomy for treatment of large ovarian cysts and to compare its surgical outcomes, complications, and cystic content spillage rates with those of conventional laparoscopy and laparotomy. Retrospective study (Canadian Task Force classification II-2). University teaching hospital. Twenty-five patients who underwent single-port assisted extracorporeal cystectomy (group 1), 33 patients who underwent conventional laparoscopy (group 2), and 25 patients who underwent laparotomy (group 3). Surgical outcomes, complications, and spillage rates in group 1 were compared with those in groups 2 and 3. Patients characteristics and tumor histologic findings were similar in the 3 groups. The mean (SD) largest diameter of ovarian cysts was 11.4 (4.2) cm in group 1, 9.7 (2.3) cm in group 2, and 12.0 (3.4) cm in group 3. Operative time in groups 1 and 2 was similar at 69.3 (26.3) minutes vs 73.1 (36.3) minutes (p = .66); however, operative time in group 1 was shorter than in group 3, at 69.3 (26.3) minutes vs 87.5 (26.6) minutes (p =.02). Blood loss in group 1 was significantly lower than in groups 2 and 3, at 16.0 (19.4) mL vs 36.1 (20.7) mL (p < .001) and 16.0 (19.4) mL vs 42.2 (39.7) mL (p = .005). The spillage rate in group 1 was profoundly lower than in group 2, at 8.0% vs 69.7% (p < .001). Single-port assisted extracorporeal cystectomy offers an alternative to conventional laparoscopy and laparotomy for management of large ovarian cysts, with comparable surgical outcomes. Furthermore, cyst content spillage rate in single-port assisted extracorporeal cystectomy was remarkably lower than that in conventional laparoscopy. Copyright © 2015. Published by Elsevier Inc.

  12. Comparison of the prognosis and recurrence of apparent early-stage ovarian tumors treated with laparoscopy and laparotomy: a meta-analysis of clinical studies

    International Nuclear Information System (INIS)

    Zhang, Ying; Fan, Shuying; Xiang, Yang; Duan, Hua; Sun, Li

    2015-01-01

    This meta-analysis aimed to evaluate the prognosis and recurrence of apparent early-stage ovarian tumors treated with laparoscopy compared with laparotomy. Clinical studies published in English were retrieved from the computerized databases Medline and Embase. A meta-analysis was performed to investigate the differences in the efficacy and safety of laparoscopy versus laparotomy in terms of postoperative complications, lengths of hospital stay, recurrence rates, and disease-free survival times using the random effects model. The studies were independently reviewed by two investigators. Data from the eligible studies were extracted, and the meta-analysis was performed using the Comprehensive Meta-Analysis program, version 2 (CMA-2; Biostat, Englewood, NJ, USA). A total of 8 studies were included in the analysis. The results showed that laparoscopic surgery was significantly associated with lower rates of complications (OR = 0.433, P = 0.019) and shorter postoperative hospital stays (weighted mean difference [WMD] = −0.974, P < 0.001). There was no significant difference in the rates of recurrence (OR = 0.707, P = 0.521) between patients with apparent early-stage ovarian tumors who were treated using laparoscopy and those who underwent laparotomy. No publication bias was detected. Laparoscopic surgery shows favorable prognostic outcomes in terms of postoperative complication rates and postoperative hospital stay durations. Further studies with longer follow-up periods are required to confirm recurrence and survival outcomes after laparoscopic surgery in patients with apparent early-stage ovarian tumors

  13. Role of diagnostic hystero-laparoscopy in the evaluation of infertility: A retrospective study of 300 patients

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    Prasanta K Nayak

    2013-01-01

    Full Text Available Objective: To determine the role of diagnostic hysterolaparoscopy in the evaluation of infertility in tertiary care centres. Materials and Methods: This retrospective study was conducted at two tertiary care centres (the infertility clinics of Sriram Chandra Bhanj Medical College and Prachi hospital at Cuttack, Odisha throughout the year in 2008. Women aged 20-40 years with normal hormone profile without male factor infertility were included. Results: Out of 300 cases, 206 (69% patients had primary infertility. While laparoscopy detected abnormalities in 34% of the cases, significant hysteroscopy findings were noted in 18% of cases. Together, diagnostic hysterolaparoscopy detected abnormalities in 26% of the infertile patients in both groups. While the most common laparoscopic abnormality was endometriosis (14% and adnexal adhesion (12% in primary and secondary infertile patients, respectively, hysteroscopy found intrauterine septum as the most common abnormality in both groups. Conclusions: Hysterolaparoscopy is an effective diagnostic tool for evaluation of certain significant and correctable tubo-peritoneal and intrauterine pathologies like peritoneal endometriosis, adnexal adhesions, and subseptate uterus, which are usually missed by other imaging modalities.

  14. Reexpansion Pulmonary Edema following Laparoscopy-Assisted Distal Gastrectomy for a Patient with Early Gastric Cancer: A Case Report

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    Kazuhito Yajima

    2012-01-01

    Full Text Available We report here a case of reexpansion pulmonary edema following laparoscopy-assisted distal gastrectomy (LADG for early gastric cancer. A 57-year-old Japanese woman with no preoperative comorbidity was diagnosed with early gastric cancer. The patient underwent LADG using the pneumoperitoneum method. During surgery, the patient was unintentionally subjected to single-lung ventilation for approximately 247 minutes due to intratracheal tube dislocation. One hour after surgery, she developed severe dyspnea and produced a large amount of pink frothy sputum. Chest radiography results showed diffuse ground-glass attenuation and alveolar consolidation in both lungs without cardiomegaly. A diagnosis of pulmonary edema was made, and the patient was immediately intubated and received ventilatory support with high positive end-expiratory pressure. The patient gradually recovered and was weaned from the ventilatory support on the third postoperative day. This case shows that single-lung ventilation may be a risk factor for reexpansion pulmonary edema during laparoscopic surgery with pneumoperitoneum.

  15. Cloning, expression and characterisation of P450-Hal1 (CYP116B62) from Halomonas sp. NCIMB 172: A self-sufficient P450 with high expression and diverse substrate scope.

    Science.gov (United States)

    Porter, Joanne L; Sabatini, Selina; Manning, Jack; Tavanti, Michele; Galman, James L; Turner, Nicholas J; Flitsch, Sabine L

    2018-06-01

    Cytochrome P450 monooxygenases are able to catalyse a range of synthetically challenging reactions ranging from hydroxylation and demethylation to sulfoxidation and epoxidation. As such they have great potential for biocatalytic applications but are underutilised due to often-poor expression, stability and solubility in recombinant bacterial hosts. The use of self-sufficient P450 s with fused haem and reductase domains has already contributed heavily to improving catalytic efficiency and simplifying an otherwise more complex multi-component system of P450 and redox partners. Herein, we present a new addition to the class VII family with the cloning, sequencing and characterisation of the self-sufficient CYP116B62 Hal1 from Halomonas sp. NCIMB 172, the genome of which has not yet been sequenced. Hal1 exhibits high levels of expression in a recombinant E. coli host and can be utilised from cell lysate or used in purified form. Hal1 favours NADPH as electron donor and displays a diverse range of activities including hydroxylation, demethylation and sulfoxidation. These properties make Hal1 suitable for future biocatalytic applications or as a template for optimisation through engineering. Copyright © 2018 Elsevier Inc. All rights reserved.

  16. Quality of life and sexuality in disease-free survivors of cervical cancer after radical hysterectomy alone: A comparison between total laparoscopy and laparotomy.

    Science.gov (United States)

    Xiao, Meizhu; Gao, Huiqiao; Bai, Huimin; Zhang, Zhenyu

    2016-09-01

    The aim of the present study was to evaluate the possible differences between total laparoscopy and laparotomy regarding their impact on postoperative quality of life and sexuality in disease-free cervical cancer survivors who received radical hysterectomy (RH) and/or lymphadenectomy alone and were followed for >1 year.We reviewed all patients with cervical cancer who had received surgical treatment in our hospital between January 2001 and March 2014. Consecutive sexually active survivors who received RH and/or lymphadenectomy for early stage cervical cancer were enrolled and divided into 2 groups based on surgical approach. Survivors were interviewed and completed validated questionnaires, including the European Organization for Research Treatment of Cancer Quality-of-Life Core Questionnaire including 30 items, the Cervical Cancer-Specific Module of European Organization for Research Treatment of Cancer Quality-of-Life Questionnaire including 24 items (EORTC QLQ-CX24), and the Female Sexual Function Index (FSFI).In total, 273 patients with histologically confirmed cervical cancer were retrospectively reviewed. However, only 64 patients had received RH and/or lymphadenectomy alone; 58 survivors meeting the inclusion criteria were enrolled, including 42 total laparoscopy cases and 16 laparotomy cases, with an average follow-up of 46.1 and 51.2 months, respectively. The survivors in the 2 groups obtained good and similar scores on all items of the European Organization for Research Treatment of Cancer Quality-of-Life Core Questionnaire including 30 items and Cervical Cancer-Specific Module of European Organization for Research Treatment of Cancer Quality-of-Life Questionnaire including 24 items, without significant differences after controlling for covariate background characteristics. To the date of submission, 21.4% (9/42) of cases in the total laparoscopy group and 31.2% (5/16) of cases in the laparotomy group had not resumed sexual behavior after RH. Additionally

  17. Laparoscopy shows superiority over endoscopy for early detection of malignant atrophic papulosis gastrointestinal complications: a case report and review of literature.

    Science.gov (United States)

    Toledo, A E; Shapiro, L S; Farrell, J F; Magro, C M; Polito, J

    2015-11-02

    The malignant form of atrophic papulosis (Köhlmeier-Degos disease) is a rare thrombo-occlusive vasculopathy that can affect multiple organ systems. Patients typically present with distinctive skin lesions reflective of vascular drop out. The small bowel is the most common internal organ involved, resulting in considerable morbidity and mortality attributable to ischemic microperforations. Determination of the presence of gastrointestinal lesions is critical in distinguishing systemic from the benign, cutaneous only disease and in identifying candidates for treatment. We describe an 18 year old male who first presented with cutaneous atrophic papulosis but became critically ill from small bowel microperforations. He had an almost immediate and dramatic response to treatment. Prior to his presentation with acute abdomen he had upper and lower endoscopy showing areas of nonspecific patchy erythema. At laparotomy, innumerable characteristic lesions with central pearly hue and erythematous border were seen. PubMed was used for a literature search using the keywords malignant atrophic papulosis, Degos disease, endoscopy, laparoscopy and laparotomy. This search yielded 200 articles which were further analyzed for diagnostic procedures and findings. Among the 200 articles we identified only 11 cases in which endoscopy was performed. Results of endoscopy and laparotomy in our patient with malignant atrophic papulosis were compared to those in the literature. Endoscopy of the gastrointestinal tract has shown gastritis and non-specific inflammation whereas laparoscopy shows white plaques with red borders on the serosal surface of the small bowel and the peritoneum. From personal communications with other physicians worldwide, we identified three additional unpublished cases in which endoscopy revealed only minimal changes while laparoscopy showed dramatic lesions. From our experience the endoscopic findings are often subtle and nonspecific, whereas laparascopy or laparotomy

  18. Evaluation of PET and laparoscopy in STagIng advanced gastric cancer: a multicenter prospective study (PLASTIC-study).

    Science.gov (United States)

    Brenkman, H J F; Gertsen, E C; Vegt, E; van Hillegersberg, R; van Berge Henegouwen, M I; Gisbertz, S S; Luyer, M D P; Nieuwenhuijzen, G A P; van Lanschot, J J B; Lagarde, S M; de Steur, W O; Hartgrink, H H; Stoot, J H M B; Hulsewe, K W E; Spillenaar Bilgen, E J; van Det, M J; Kouwenhoven, E A; van der Peet, D L; Daams, F; van Sandick, J W; van Grieken, N C T; Heisterkamp, J; van Etten, B; Haveman, J W; Pierie, J P; Jonker, F; Thijssen, A Y; Belt, E J T; van Duijvendijk, P; Wassenaar, E; van Laarhoven, H W M; Wessels, F J; Haj Mohammad, N; van Stel, H F; Frederix, G W J; Siersema, P D; Ruurda, J P

    2018-04-20

    Initial staging of gastric cancer consists of computed tomography (CT) and gastroscopy. In locally advanced (cT3-4) gastric cancer, fluorodeoxyglucose positron emission tomography with CT (FDG-PET/CT or PET) and staging laparoscopy (SL) may have a role in staging, but evidence is scarce. The aim of this study is to evaluate the impact and cost-effectiveness of PET and SL in addition to initial staging in patients with locally advanced gastric cancer. This prospective observational cohort study will include all patients with a surgically resectable, advanced gastric adenocarcinoma (cT3-4b, N0-3, M0), that are scheduled for treatment with curative intent after initial staging with gastroscopy and CT. The modalities to be investigated in this study is the addition of PET and SL. The primary outcome of this study is the proportion of patients in whom the PET or SL lead to a change in treatment strategy. Secondary outcome parameters are: diagnostic performance, morbidity and mortality, quality of life, and cost-effectiveness of these additional diagnostic modalities. The study recently started in August 2017 with a duration of 36 months. At least 239 patients need to be included in this study to demonstrate that the diagnostic modalities are break-even. Based on the annual number of gastrectomies in the participating centers, it is estimated that approximately 543 patients are included in this study. In this study, it is hypothesized that performing PET and SL for locally advanced gastric adenocarcinomas results in a change of treatment strategy in 27% of patients and an annual cost-reduction in the Netherlands of €916.438 in this patient group by reducing futile treatment. The results of this study may be applicable to all countries with comparable treatment algorithms and health care systems. NCT03208621 . This trial was registered prospectively on June 30, 2017.

  19. Randomized comparison of surgical stress and the nutritional status between laparoscopy-assisted and open distal gastrectomy for gastric cancer.

    Science.gov (United States)

    Aoyama, Toru; Yoshikawa, Takaki; Hayashi, Tsutomu; Hasegawa, Shinichi; Tsuchida, Kazuhito; Yamada, Takanobu; Cho, Haruhiko; Ogata, Takashi; Fujikawa, Hirohito; Yukawa, Norio; Oshima, Takashi; Rino, Yasushi; Masuda, Munetaka

    2014-06-01

    Laparoscopy-assisted distal gastrectomy (LADG) for gastric cancer may prevent the development of an impaired nutritional status due to reduced surgical stress compared with open distal gastrectomy (ODG). This study was performed as an exploratory analysis of a phase III trial comparing LADG and ODG for stage I gastric cancer during the period between May and December of 2011. All patients received the same perioperative care via fast-track surgery. The level of surgical stress was evaluated based on the white blood cell count and the interleukin-6 (IL-6) level. The nutritional status was measured according to the total body weight, amount of lean body mass, lymphocyte count, and prealbumin level. Twenty-six patients were randomized to receive ODG (13 patients) or LADG (13 patients). The baseline characteristics and surgical outcomes were similar between the two groups. The median IL-6 level increased from 0.8 to 36.3 pg/dl in the ODG group and from 1.5 to 53.3 pg/dl in the LADG group. The median amount of lean body mass decreased from 48.3 to 46.8 kg in the ODG group and from 46.6 to 46.0 kg in the LADG group. There are no significant differences between two groups. The level of surgical stress and the nutritional status were found to be similar between the ODG and LADG groups in a randomized comparison using the same perioperative care of fast-track surgery.

  20. Perioperative strategy in colonic surgery; LAparoscopy and/or FAst track multimodal management versus standard care (LAFA trial

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    Swart Annemiek

    2006-11-01

    Full Text Available Abstract Background Recent developments in large bowel surgery are the introduction of laparoscopic surgery and the implementation of multimodal fast track recovery programs. Both focus on a faster recovery and shorter hospital stay. The randomized controlled multicenter LAFA-trial (LAparoscopy and/or FAst track multimodal management versus standard care was conceived to determine whether laparoscopic surgery, fast track perioperative care or a combination of both is to be preferred over open surgery with standard care in patients having segmental colectomy for malignant disease. Methods/design The LAFA-trial is a double blinded, multicenter trial with a 2 × 2 balanced factorial design. Patients eligible for segmental colectomy for malignant colorectal disease i.e. right and left colectomy and anterior resection will be randomized to either open or laparoscopic colectomy, and to either standard care or the fast track program. This factorial design produces four treatment groups; open colectomy with standard care (a, open colectomy with fast track program (b, laparoscopic colectomy with standard care (c, and laparoscopic surgery with fast track program (d. Primary outcome parameter is postoperative hospital length of stay including readmission within 30 days. Secondary outcome parameters are quality of life two and four weeks after surgery, overall hospital costs, morbidity, patient satisfaction and readmission rate. Based on a mean postoperative hospital stay of 9 +/- 2.5 days a group size of 400 patients (100 each arm can reliably detect a minimum difference of 1 day between the four arms (alfa = 0.95, beta = 0.8. With 100 patients in each arm a difference of 10% in subscales of the Short Form 36 (SF-36 questionnaire and social functioning can be detected. Discussion The LAFA-trial is a randomized controlled multicenter trial that will provide evidence on the merits of fast track perioperative care and laparoscopic colorectal surgery in

  1. Paraesophageal hernia repair in the emergency setting: is laparoscopy with the addition of a fundoplication the new gold standard?

    Science.gov (United States)

    Klinginsmith, Michael; Jolley, Jennifer; Lomelin, Daniel; Krause, Crystal; Heiden, Jace; Oleynikov, Dmitry

    2016-05-01

    Laparoscopic repair of paraesophageal hernia (PEH) with fundoplication is currently the preferred elective strategy, but emergent cases are often done open without an anti-reflux (AR) procedure. This study examined PEH repair in elective and urgent/emergent settings and investigated patient characteristic influence on the use of adjunctive techniques, such as AR procedures or gastrostomy tube (GT) placement. Utilizing the University HealthSystem Consortium Clinical Database Resource Manager, selected discharge data were retrieved using International Classification of Disease 9 diagnosis codes for PEH and procedure specific codes. Chi-squared and paired t tests were applied (α = 0.05). Discharge data from October 2010 through June 2014 indicated 7950 patients (≥18 years) underwent PEH surgery, 84.7 % were performed laparoscopically and 15.3 % open. 24.6 % of cases were classified urgent/emergent upon admission, and almost 70 % of these were completed laparoscopically. Open paraesophageal hernia repairs (OHR) represented a higher proportion of urgent/emergent cases but were only 30 % of this total. Laparoscopic paraesophageal hernia repair (LHR) patients were more likely to receive an AR procedure in all situations (54.9 % LHR vs. 26.3 % OHR). Almost 90 % of elective PEH repairs in this cohort were laparoscopic. Elective cases were more commonly associated with AR procedures than emergent cases which frequently incorporated GT placement. We demonstrate that laparoscopic PEH repair has become accepted in emergent cases. Open PEH repair is often reserved for emergent surgeries and less commonly includes an AR procedure. Laparoscopy with an AR procedure is clearly the standard of care in elective surgery. The decision to perform an open or laparoscopic surgery, with or without adjunctive techniques, may be based more on the physician's comfort with laparoscopic surgery and surgical practices than the patient's condition. Long-term follow-up studies are

  2. Small-dose hypobaric lidocaine-fentanyl spinal anesthesia for short duration outpatient laparoscopy. I. A randomized comparison with conventional dose hyperbaric lidocaine.

    Science.gov (United States)

    Vaghadia, H; McLeod, D H; Mitchell, G W; Merrick, P M; Chilvers, C R

    1997-01-01

    A randomized, single-blind trial of two spinal anesthetic solutions for outpatient laparoscopy was conducted to compare intraoperative conditions and postoperative recovery. Thirty women (ASA physical status I and II) were assigned to one of two groups. Group I patients received a small-dose hypobaric solution of 1% lidocaine 25 mg made up to 3 mL by the addition of fentanyl 25 micrograms. Group II patients received a conventional-dose hyperbaric solution of 5% lidocaine 75 mg (in 7.5% dextrose) made up to 3 mL by the addition of 1.5 mL 10% dextrose. All patients received 500 mL of crystalloid preloading. Spinal anesthesia was performed at L2-3 or L3-4 with a 27-gauge Quincke point needle. Surgery commenced when the level of sensory anesthesia reached T-6. Intraoperative hypotension requiring treatment with ephedrine occurred in 54% of Group II patients but not in any Group I patients. Median (range) time for full motor recovery was 50 (0-95) min in Group I patients compared to 90 (50-120) min in Group II patients (P = 0.0005). Sensory recovery also occurred faster in Group I patients (100 +/- 22 min) compared with Group II patients (140 +/- 27 min, P = 0.0001). Postoperative headache occurred in 38% of all patients and 70% of these were postural in nature. Oral analgesia was the only treatment required. Spinal anesthesia did not result in a significant incidence of postoperative backache. On follow-up, 96% said they found spinal needle insertion acceptable, 93% found surgery comfortable, and 90% said they would request spinal anesthesia for laparoscopy in future. Overall, this study found spinal anesthesia for outpatient laparoscopy to have high patient acceptance and a comparable complication rate to other studies. The small-dose hypobaric lidocaine-fentanyl technique has advantages over conventional-dose hyperbaric lidocaine of no hypotension and faster recovery.

  3. Diagnostic value and timing of serum antichlamidial antibody level evaluation during infertility workup among infertile women in whom tubal factor was detected with diagnostic laparoscopy

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    Serkan Kahyaoğlu

    2012-03-01

    Full Text Available OBJECTIVES: With normal hysterosalpingography (HSG results, selecting suitable candidates for the laparoscopic treatment of probable pelvic adhesions following previous pelvic inflammatory disease, it would be wise to investigate serum antibody screening against chlamidia trachomatis. It is worth to evaluate whether it is useful to detect a negative antichlamidial antibody disease for cancelling laparoscopy for a while with abnormal HSG findings. These two subjects have been investigated in study. MATERIAL AND METHODS: For detecting diagnostic value of serum antichlamidial antibody, in our infertility clinic, postoperative blood samples of 80 patients who were hospitalized for diagnostic laparoscopy to investigate infertility ethiology between May 2004 and November 2005 have been tested with microelisa method for antichlamidial IgM and IgG antibodies. HSG films of the patients performed at least one year were evaluated. Venous blood was drawn from these patients during postoperative early period for studying serum IgM and IgG antibodies of chlamidia trachomatis and the results were compared with operative findings. RESULTS: According to the antichlamidial antibody levels 60 (75% patients have not been infected with chlamidia and 20 (25% patients have been infected previously. When the patients were divided to two groups; normal and abnormal; based on preoperative HSG films; 18 (30% of the 60 patients with abnormal HSG films and 2 (10% of the 20 patients with normal HSG films had positive antichlamidial antibody levels respectively. CONCLUSION: The relationship between chlamidia trachomatis infection and tubal infertility has been demonstrated among 85% of patients with positive antichlamidial antibody levels and 46.7% of patients with negative levels who had tubal passage defects detected during diagnostic laparoscopy.

  4. Use of a multimedia module to aid the informed consent process in patients undergoing gynecologic laparoscopy for pelvic pain: randomized controlled trial.

    Science.gov (United States)

    Ellett, Lenore; Villegas, Rocio; Beischer, Andrew; Ong, Nicole; Maher, Peter

    2014-01-01

    To determine whether providing additional information to the standard consent process, in the form of a multimedia module (MM), improves patient knowledge about operative laparoscopy without increasing anxiety. Randomized controlled trial (Canadian Task Force classification I). Two outpatient gynecologic clinics, one in a private hospital and the other in a public teaching hospital. Forty-one women aged 19 to 51 years (median, 35.6 years) requiring operative laparoscopy for investigation and treatment of pelvic pain. Following the standard informed consent process, patients were randomized to watch the MM (intervention group, n = 21) or not (control group, n = 20). The surgeon was blinded to the group assignments. All patients completed a knowledge questionnaire and the Spielberger short-form State-Trait Anxiety Inventory. Six weeks after recruitment, patients completed the knowledge questionnaire and the State-Trait Anxiety Inventory a second time to assess knowledge retention and anxiety scores. Patient knowledge of operative laparoscopy, anxiety level, and acceptance of the MM were recorded. The MM intervention group demonstrated superior knowledge scores. Mean (SE) score in the MM group was 11.3 (0.49), and in the control group was 7.9 (0.50) (p <.001) (maximum score, 14). This did not translate into improved knowledge scores 6 weeks later; the score in the MM group was 8.4 (0.53) vs. 7.8 (0.50) in the control group (p = .44). There was no difference in anxiety levels between the groups at intervention or after 6 weeks. Overall, patients found the MM acceptable, and 18 women (86%) in the intervention group and 12 (60%) in the control group stated they would prefer this style of informed consent in the future. Use of an MM enhances the informed consent process by improving patient knowledge, in the short term, without increasing anxiety. Copyright © 2014 AAGL. Published by Elsevier Inc. All rights reserved.

  5. The HubBLe Trial: haemorrhoidal artery ligation (HAL) versus rubber band ligation (RBL) for symptomatic second- and third-degree haemorrhoids: a multicentre randomised controlled trial and health-economic evaluation.

    Science.gov (United States)

    Brown, Steven; Tiernan, Jim; Biggs, Katie; Hind, Daniel; Shephard, Neil; Bradburn, Mike; Wailoo, Allan; Alshreef, Abualbishr; Swaby, Lizzie; Watson, Angus; Radley, Simon; Jones, Oliver; Skaife, Paul; Agarwal, Anil; Giordano, Pasquale; Lamah, Marc; Cartmell, Mark; Davies, Justin; Faiz, Omar; Nugent, Karen; Clarke, Andrew; MacDonald, Angus; Conaghan, Phillip; Ziprin, Paul; Makhija, Rohit

    2016-11-01

    Optimal surgical intervention for low-grade haemorrhoids is unknown. Rubber band ligation (RBL) is probably the most common intervention. Haemorrhoidal artery ligation (HAL) is a novel alternative that may be more efficacious. The comparison of HAL with RBL for the treatment of grade II/III haemorrhoids. A multicentre, parallel-group randomised controlled trial. UK NHS and Personal Social Services. 17 NHS Trusts. Patients aged ≥ 18 years presenting with grade II/III (second- and third-degree) haemorrhoids, including those who have undergone previous RBL. HAL with Doppler probe compared with RBL. Primary outcome - recurrence at 1 year post procedure; secondary outcomes - recurrence at 6 weeks; haemorrhoid severity score; European Quality of Life-5 Dimensions, 5-level version (EQ-5D-5L); Vaizey incontinence score; pain assessment; complications; and cost-effectiveness. A total of 370 participants entered the trial. At 1 year post procedure, 30% of the HAL group had evidence of recurrence compared with 49% after RBL [adjusted odds ratio (OR) = 2.23, 95% confidence interval (CI) 1.42 to 3.51; p  = 0.0005]. The main reason for the difference was the number of extra procedures required to achieve improvement/cure. If a single HAL is compared with multiple RBLs then only 37.5% recurred in the RBL arm (adjusted OR 1.35, 95% CI 0.85 to 2.15; p  = 0.20). Persistence of significant symptoms at 6 weeks was lower in both arms than at 1 year (9% HAL and 29% RBL), suggesting significant deterioration in both groups over the year. Symptom score, EQ-5D-5L and Vaizey score improved in both groups compared with baseline, but there was no difference between interventions. Pain was less severe and of shorter duration in the RBL group; most of the HAL group who had pain had mild to moderate pain, resolving by 3 weeks. Complications were low frequency and not significantly different between groups. It appeared that HAL was not cost-effective compared with RBL. In the base

  6. Feasibility and analgesic efficacy of the transversus abdominis plane block after single-port laparoscopy in patients having bariatric surgery

    Directory of Open Access Journals (Sweden)

    Wassef M

    2013-11-01

    Full Text Available Michael Wassef, David Y Lee, Jun L Levine, Ronald E Ross, Hamza Guend, Catherine Vandepitte, Admir Hadzic, Julio TeixeiraDepartment of Anesthesiology, St Luke's-Roosevelt Hospital Center, New York, NY, USAPurpose: The transversus abdominis plane (TAP block is a technique increasingly used for analgesia after surgery on the anterior abdominal wall. We undertook this study to determine the feasibility and analgesic efficacy of ultrasound-guided TAP blocks in morbidly obese patients. We describe the dermatomal spread of local anesthetic in TAP blocks administered, and test the hypothesis that TAP blocks decrease visual analog scale (VAS scores.Patients and methods: After ethics committee approval and informed consent, 35 patients with body mass index >35 undergoing single-port sleeve gastrectomy (SPSG were enrolled. All patients received balanced general anesthesia, followed by intravenous patient-controlled analgesia (IV-PCA; hydromorphone postoperatively; all reported VAS >3 upon arrival to the recovery room. From the cohort of 35 patients having single-port laparoscopy (SPL, a sealed envelope method was used to randomly select ten patients to the TAP group and 25 patients to the control group. The ten patients in the TAP group received ultrasound-guided TAP blocks with 30 mL of 0.2% Ropivacaine injected bilaterally. The dermatomal distribution of the sensory block (by pinprick test was recorded. VAS scores for the first 24 hours after surgery and opioid use were compared between the IV-PCA+TAP block and IV-PCA only groups.Results: Sensory block ranged from T5–L1. Mean VAS pain scores decreased from 8 ± 2 to 4 ± 3 (P=0.04 within 30 minutes of TAP block administration. Compared with patients given IV-PCA only, significantly fewer patients who received TAP block had moderate or severe pain (VAS 4–10 after block administration at 6 hours and 12 hours post-surgery. However, cumulative consumption of hydromorphone at 24 hours after SPSG surgery

  7. Laparoscopy Assisted versus Open Distal Gastrectomy with D2 Lymph Node Dissection for Advanced Gastric Cancer: Design and Rationale of a Phase II Randomized Controlled Multicenter Trial (COACT 1001).

    Science.gov (United States)

    Nam, Byung Ho; Kim, Young-Woo; Reim, Daniel; Eom, Bang Wool; Yu, Wan Sik; Park, Young Kyu; Ryu, Keun Won; Lee, Young Joon; Yoon, Hong Man; Lee, Jun Ho; Jeong, Oh; Jeong, Sang Ho; Lee, Sang Eok; Lee, Sang Ho; Yoon, Ki Young; Seo, Kyung Won; Chung, Ho Young; Kwon, Oh Kyoung; Kim, Tae Bong; Lee, Woon Ki; Park, Seong Heum; Sul, Ji-Young; Yang, Dae Hyun; Lee, Jong Seok

    2013-09-01

    Laparoscopy-assisted distal gastrectomy for early gastric cancer has gained acceptance and popularity worldwide. However, laparoscopy-assisted distal gastrectomy for advanced gastric cancer is still controversial. Therefore, we propose this prospective randomized controlled multi-center trial in order to evaluate the safety and feasibility of laparoscopy assisted D2-gastrectomy for advanced stage gastric cancer. Patients undergoing distal gastrectomy for advanced gastric cancer staged cT2/3/4 cN0/1/2/3a cM0 by endoscopy and computed tomography are eligible for enrollment after giving their informed consent. Patients will be randomized either to laparoscopy-assisted distal gastrectomy or open distal gastrectomy. Sample size calculation revealed that 102 patients are to be included per treatment arm. The primary endpoint is the non-compliance rate of D2 dissection; relevant secondary endpoints are three-year disease free survival, surgical and postoperative complications, hospital stay and unanimity rate of D2 dissection evaluated by reviewing the intraoperative video documentation. Oncologic safety is the major concern regarding laparoscopy-assisted distal gastrectomy for advanced gastric cancer. Therefore, the non-compliance rate of clearing the N2 area was chosen as the most important parameter for the technical feasibility of the laparoscopic procedure. Furthermore, surgical quality will be carefully reviewed, that is, three independent experts will review the video records and score with a check list. For a long-term result, disease free survival is considered a secondary endpoint for this trial. This study will offer promising evidence of the feasibility and safety of Laparoscopy-assisted distal gastrectomy for advanced gastric cancer. NCT01088204 (international), NCCCTS-09-448 (Korea).

  8. An observational study of the timing of surgery, use of laparoscopy and outcomes for acute cholecystitis in the USA and UK.

    Science.gov (United States)

    Murray, A C; Markar, S; Mackenzie, H; Baser, O; Wiggins, T; Askari, A; Hanna, G; Faiz, O; Mayer, E; Bicknell, C; Darzi, A; Kiran, R P

    2018-01-08

    Evidence supports early laparoscopic cholecystectomy for acute cholecystitis. Differences in treatment patterns between the USA and UK, associated outcomes and resource utilization are not well understood. In this retrospective, observational study using national administrative data, emergency patients admitted with acute cholecystitis were identified in England (Hospital Episode Statistics 1998-2012) and USA (National Inpatient Sample 1998-2011). Proportions of patients who underwent emergency cholecystectomy, utilization of laparoscopy and associated outcomes including length of stay (LOS) and complications were compared. The effect of delayed treatment on subsequent readmissions was evaluated for England. Patients with a diagnosis of acute cholecystitis totaled 1,191,331 in the USA vs. 288 907 in England. Emergency cholecystectomy was performed in 628,395 (52.7% USA) and 45,299 (15.7% England) over the time period. Laparoscopy was more common in the USA (82.8 vs. 37.9%; p USA. Overall incidence of bile duct injury was higher in England than the USA (0.83 vs. 0.43%; p USA and England. Despite best evidence, index admission laparoscopic cholecystectomy is performed less in England, which significantly impacts subsequent healthcare utilization.

  9. Stereoscopic (3D) versus monoscopic (2D) laparoscopy: comparative study of performance using advanced HD optical systems in a surgical simulator model.

    Science.gov (United States)

    Schoenthaler, Martin; Schnell, Daniel; Wilhelm, Konrad; Schlager, Daniel; Adams, Fabian; Hein, Simon; Wetterauer, Ulrich; Miernik, Arkadiusz

    2016-04-01

    To compare task performances of novices and experts using advanced high-definition 3D versus 2D optical systems in a surgical simulator model. Fifty medical students (novices in laparoscopy) were randomly assigned to perform five standardized tasks adopted from the Fundamentals of Laparoscopic Surgery (FLS) curriculum in either a 2D or 3D laparoscopy simulator system. In addition, eight experts performed the same tasks. Task performances were evaluated using a validated scoring system of the SAGES/FLS program. Participants were asked to rate 16 items in a questionnaire. Overall task performance of novices was significantly better using stereoscopic visualization. Superiority of performances in 3D reached a level of significance for tasks peg transfer and precision cutting. No significant differences were noted in performances of experts when using either 2D or 3D. Overall performances of experts compared to novices were better in both 2D and 3D. Scorings in the questionnaires showed a tendency toward lower scores in the group of novices using 3D. Stereoscopic imaging significantly improves performance of laparoscopic phantom tasks of novices. The current study confirms earlier data based on a large number of participants and a standardized task and scoring system. Participants felt more confident and comfortable when using a 3D laparoscopic system. However, the question remains open whether these findings translate into faster and safer operations in a clinical setting.

  10. LAPAROSCOPY IN PRIVATE PRACTICE*

    African Journals Online (AJOL)

    We have found the laparoscope our most useful aid for making a quick and accurate diagnosis of pelvic masses. On inspection the difference between fibromyomata and endometriosis is apparent. In the case of suspected ectopic pregnancy, where there has been only scant intra- peritoneal bleeding, the traditional method ...

  11. Trocar types in laparoscopy

    NARCIS (Netherlands)

    la Chapelle, Claire F.; Swank, Hilko A.; Wessels, Monique E.; Mol, Ben Willem J.; Rubinstein, Sidney M.; Jansen, Frank Willem

    2015-01-01

    Laparoscopic surgery has led to great clinical improvements in many fields of surgery; however, it requires the use of trocars, which may lead to complications as well as postoperative pain. The complications include intra-abdominal vascular and visceral injury, trocar site bleeding, herniation and

  12. Pelvic laparoscopy - slideshow

    Science.gov (United States)

    ... Duplication for commercial use must be authorized in writing by ADAM Health Solutions. About MedlinePlus Site Map FAQs Customer Support Get email updates Subscribe to RSS Follow us Disclaimers Copyright ...

  13. Laparoscopy in abdominal trauma

    African Journals Online (AJOL)

    with smaller diameter (2 - 3 mm) and short length (20 cm) had to become ... hospital stay and fewer postoperative complications such as ... Principal specialist paediatric surgeon, Red Cross War Memorial Children's Hospital, Cape Town.

  14. Cytoprotection with amifostine in the simultaneous radio-chemotherapy of recurrent head and neck cancer; Zytoprotection mit Amifostin im Rahmen der Radiochemotherapie bei vorbestrahlten Kopf-Hals-Karzinomen

    Energy Technology Data Exchange (ETDEWEB)

    Buentzel, J.; Weinaug, R.; Kuettner, K. [Zentralklinikum gGmbH Suedthueringen, Suhl (Germany). Klinik fuer Hals-Nasen-Ohren-Heilkunde, Plastische Operationen; Glatzel, M.; Froehlich, D. [Zentralklinikum gGmbH Suedthueringen, Suhl (Germany). Klinik fuer Strahlentherapie; Schuth, J. [Essex Pharma, Muenchen (Germany)

    1999-11-01

    Purpose: The radiotherapeutic possibilities are limited for patients with a recurrent or second head and neck cancer if the patient was already irradiated in the first therapy. In the presented study we investigated the changes of this situation due to the usage of amifostine in the case of re-irradiation (simultaneous radio-chemotherapy). Patients and methods: Between 1995 and 1997 we treated 14 patients with a recurrent or second malignancy of the head and neck region by a simultaneous radio-chemotherapy (20x1.5 Gy, Carboplatin 70 mg/m{sup 2} BSA on days 1 to 5 and 16 to 20, 500 mg amifostine prior to every carboplatin infusion). Six out of 14 patients got an additional brachytherapy (10 to 15 Gy) to increase the local dose because of a residual tomor. In 4 cases the treatment was an adjunctive one, following the surgical tumor debulking. Results: We have seen 3 complete remissions (21.4%), and 8 partial remissions (57.1%). The median time of observation in 13 months now. Three out of 14 patients died, 2 because of the tumor. Hematological toxicities: Side effects Grade 2 WHO were seen only in 1 patient. Acute non-hematological toxicities: Mucositis Grade 0/1 in 7 patients, mucositis Grade 2 in 7 patients, dysphagia Grade 0/1 in 9 patients, dysphagia Grade 2 in 5 patients, xerostomia Grade 1 in 9 patients, xerostomia Grade 2 in 3 patients. We registrated only 1 serious late toxicity due to radio-chemotherapy: 4 months after brachytherapy a patient (with laryngectomy) developed a submental fistula. Conclusion: These first results suggest that the usage of amifostine offers new potential ways for re-irradiation of patients with recurrent or second malignancies in the head neck region. (orig.) [German] Ziel: Bei einem Rezidiv- oder Zweitkarzinom im Kopf-Hals-Bereich sind die radiotherapeutischen Moeglichkeiten bei bereits vorbestrahlten Patienten sehr begrenzt. Inwieweit die Integration des selektiven Zytoprotektivums Amifostin in eine nochmalige Radiochemotherapie

  15. Caracterización de bacterias halófilas productoras de amilasas aisladas de las Salinas de San Blas en Junín

    Directory of Open Access Journals (Sweden)

    Pamela Elizabeth Canales Mormontoy

    2014-07-01

    Full Text Available Título en español: Caracterización de bacterias halófilas productoras de amilasas aisladas de las Salinas de San Blas en Junín Título en ingles: Characterization of halophilic bacteria producing amylase isolated from San Blas Salterns in Junin Título corto: Bacterias halófilas amilolíticas de las Salinas de San Blas Resumen:  El objetivo de este estudio fue caracterizar bacterias halófilas con actividad amilolítica provenientes de las Salinas de San Blas-Junín, ubicadas en los Andes peruanos aproximadamente a 4100 m de altitud. Este estudio se realizó con 34 bacterias aisladas de muestras de suelos las cuales se cultivaron en agar agua de sales (SW 5 % conteniendo extracto de levadura 0,5 % y almidón 1 %. El 41 % de bacterias mostró la capacidad de hidrolizar almidón, éstas fueron caracterizadas mediante pruebas fisiológicas y bioquímicas convencionales. Tres bacterias fueron Gram-negativas y once Gram-positivas. El 21 % (3/14 creció en un amplio rango de concentración de sales, entre 5 y 20 %. El 14 % (2/14 de las bacterias presentó actividad lipolítica, proteolítica y nucleolítica, y el 29 % (4/14, presentó actividad proteolítica y nucleolítica. Las bacterias se identificaron mediante los perfiles de restricción de los genes ribosómicos 16S amplificados, las enzimas usadas fueron Hae III, BstU I, Hinf I y Cfo I. Los genes ribosómicos 16S de siete bacterias que presentaron perfiles de ADN diferentes se amplificaron, secuenciaron y analizaron mediante programas bioinformáticos. Del análisis fenotípico y molecular de las 14 bacterias amilolíticas se obtuvieron dos grupos, uno perteneciente al género Halomonas (3 y el otro, al género Bacillus (11. Las bacterias amilolíticas caracterizadas podrían ser de potencial uso a nivel industrial.  Palabras clave: Salinas de San Blas, amilasas, genes ribosómicos 16S, ARDRA, Bacillus, Halomonas. Abstract: The aim of this study was to characterize halophilic

  16. Staging of primary head and neck tumors and detection of recurrences; Staging und Rezidivdiagnostik von Tumoren im Kopf-Hals-Bereich

    Energy Technology Data Exchange (ETDEWEB)

    Adams, S. [Klinikum der Ruhr-Univ. Bochum, Marienhospital, Herne (Germany). Klinik fuer Radiologie und Nuklearmedizin; Baum, R.P. [Zentralklinik Bad Berka (Germany). Klinik fuer Nuklearmedizin/PET-Zentrum; Knecht, R. [Frankfurt Univ., Frankfurt am Main (Germany). Zentrum fuer Hals-Nasen-Ohren-Heilkunde; Hoer, G. [Frankfurt Univ., Frankfurt/Main (Germany). Klinik fuer Nuklearmedizin

    2001-04-01

    Squamous cell carcinomas represent the vast majority of all malignant tumors of the head and neck region. Lymph node involvement is the most important prognostic factor affecting survival of patients with head and neck cancer. The effectiveness of surgical treatment depends on the complete excision of all tumor tissue and an accurate preoperative diagnosis. Tumor-node-metastasis (TNM) staging is therefore mandatory. In comparison to positron emission tomography with fluorine-18 fluorodeoxyglucose (FDG PET), morphological imaging modalities (CT, MRI) have been applied for the localization of primary head and neck tumors because of their better anatomical resolution. Metabolic tumor imaging using FDG PET is superior to morphological imaging by CT and MRI in the detection of small cervical lymph node metastases (Class 1a indication). Increased FDG utpake has also been observed in benign inflammatory lesions after radiation therapy, therefore detection of local recurrence with FDG PET can be problematic. To ensure a high diagnostic accuracy it is been suggested to perform FDG PET not earlier than 3 months after radiation therapy (Class 1a indication for the diagnosis of local recurrence). (orig.) [German] Plattenepithelkarzinome stellen mit 90% den ueberwiegenden Anteil von malignen Tumoren des Kopf-Hals-Bereiches dar. Ein wesentlicher prognostischer Faktor ist das Vorhandensein von Lymphknotenmetastasen. Die Entscheidung ueber das richtige therapeutische Vorgehen ist von der genauen Festlegung des primaeren Tumorstadiums abhaengig. Die Positronenemissionstomographie (PET) unter Verwendung von {sup 18}F-markierter 2-Fluoro-2-Deoxy-D-Glukose (FDG) ist fuer das T-Staging gegenueber den morphologisch orientierten Verfahren (CT, MRT) im allgemeinen ohne klinischen Nutzen. Als funktionsorientiertes Verfahren ist die FDG-PET bei der Diagnostik von Lymphknotenmetastasen den anatomisch orientierten Untersuchungsverfahren ueberlegen (Klasse-1a-Indikation), da sie nicht alleine

  17. HAL/S-FC and HAL/S-360 compiler system program description

    Science.gov (United States)

    1976-01-01

    The compiler is a large multi-phase design and can be broken into four phases: Phase 1 inputs the source language and does a syntactic and semantic analysis generating the source listing, a file of instructions in an internal format (HALMAT) and a collection of tables to be used in subsequent phases. Phase 1.5 massages the code produced by Phase 1, performing machine independent optimization. Phase 2 inputs the HALMAT produced by Phase 1 and outputs machine language object modules in a form suitable for the OS-360 or FCOS linkage editor. Phase 3 produces the SDF tables. The four phases described are written in XPL, a language specifically designed for compiler implementation. In addition to the compiler, there is a large library containing all the routines that can be explicitly called by the source language programmer plus a large collection of routines for implementing various facilities of the language.

  18. HAL-RAR (Doppler guided haemorrhoid artery ligation with recto-anal repair) is a safe and effective procedure for haemorrhoids. Results of a prospective study after two-years follow-up.

    Science.gov (United States)

    Hoyuela, Carlos; Carvajal, Fernando; Juvany, Montserrat; Troyano, Daniel; Trias, Miquel; Martrat, Antoni; Ardid, Jordi; Obiols, Joan

    2016-04-01

    To analyse prospectively results of HAL-RAR technique by evaluating pain, perioperative complications and clinical outcome after two years followup. A prospective study design including 30 consecutive patients with haemorrhoids grade III-IV treated from June 2012. After discharge, patients received a specific questionnaire to record postoperative pain, delayed complications, evolution/disappearance of the symptoms that led to the surgical intervention (bleeding, prolapse, itching, pain and soiling). A visual analog scale (VAS) was used to measure pain. Outpatient follow-up was carried out at 7 days, and 1, 6 and 12 months and annually thereafter. Pre, intra and postoperative data (including physical examination) had been recorded prospectively. The median operating time (range) was 40 (26-60) minutes. Average hospital stay (range) was 11 (3-25) hours. No postoperative complications were observed in 29 cases (96.6%). Median follow-up was 26 (12-36) months. All the patients attended the follow-up. Mean postoperative pain was VAS = 1.7 on the seventh day and it was practically non-existent (VAS = 0.7) 1 month after the procedure. 87.5% of patients confirmed complete relief of symptoms after 30 days and 93% of patients feel free of symptoms 6 months after the procedure. No patient has experienced late complications as dyschezia, urgency, soiling or faecal incontinence. After 24 months follow-up, recurrence of bleeding and prolapse was observed in only 1 patient; 93% of patients have considered results of HAL-RAR as very good or excellent. HAL-RAR is safe and almost painless technique and it has very good results in the control of haemorrhoidal symptoms. This procedure should be considered as an effective first treatment option for haemorrhoids. Copyright © 2016 IJS Publishing Group Limited. Published by Elsevier Ltd. All rights reserved.

  19. A Lithium-Sensitive and Sodium-Tolerant 3′-Phosphoadenosine-5′-Phosphatase Encoded by halA from the Cyanobacterium Arthrospira platensis Is Closely Related to Its Counterparts from Yeasts and Plants

    OpenAIRE

    Zhang, Ju-Yuan; Zou, Jie; Bao, Qiyu; Chen, Wen-Li; Wang, Li; Yang, Huanming; Zhang, Cheng-Cai

    2006-01-01

    3′-Phosphoadenosine-5′-phosphatase (PAPase) is required for the removal of toxic 3′-phosphoadenosine-5′-phosphate (PAP) produced during sulfur assimilation in various eukaryotic organisms. This enzyme is a well-known target of lithium and sodium toxicity and has been used for the production of salt-resistant transgenic plants. In addition, PAPase has also been proposed as a target in the treatment of manic-depressive patients. One gene, halA, which could encode a protein closely related to th...

  20. Comparación del blanqueamiento dental con peróxido de hidrógeno al 25% en consultorio, utilizando o no activación con lámpara de luz halógena

    OpenAIRE

    Posso Moreno, Sandra Lorena; Pontificia Universidad Javeriana; Ramírez Ramírez, Diana Ximena; Pontificia Universidad Javeriana; Rosas Jaimes, Jimena Alexandra; Pontificia Universidad Javeriana; Güiza Cristancho, Edgar Humberto; Pontificia Universidad Javeriana

    2010-01-01

    Antecedentes: el blanqueamiento dental es actualmente uno de los tratamientos más solicitados para mejorar la estética dental. Las técnicas para efectuarlo utilizan agentes blanqueadores como el peróxido de carbamida, el perborato de sodio y el peróxido de hidrógeno. Investigadores y clínicos buscan usualmente saber cuáles de las técnicas que hoy son empleadas producen los mejores efectos. Propósito: determinar si el uso de luz halógena para el blanqueamiento dental con peróxido de hidrógeno ...

  1. [Effects of the combined therapy of heat sensitive moxibustion and acupoint injection on endometrial receptivity of hypdrosalphinx infertility in the patients after hysteroscopy and laparoscopy].

    Science.gov (United States)

    Liu, Yanling; Pan, Lizhen; Wang, Ying

    2018-01-12

    To explore the effects of the combined therapy of heat sensitive moxibustion and acupoint injection on endometrial receptivity of hypdrosalphinx infertility in the patients after hysteroscopy and laparoscopy on the base of routine post-operative anti-inflammation. A total of 210 patients of hypdrosalphinx infertility after hysteroscopy and laparoscopy were divided into a combined therapy group, a heat sensitive moxibustion group and a control group, 70 cases in each one according to the random number table. In the control group, the intravenous drip of cefoxitin sodium was adopted, and the anti-inflammation treatment was given for 1 week after operation. In the heat sensitive moxibustion group, on the basis of the treatment as the control group, the heat sensitive moxibustion was applied after vaginal bleeding stopped. The acupoints were Yaoyangguan (GV 3), Guanyuan (CV 4), Qihai (CV 6), Shenshu (BL 23), Sanyinjiao (SP 6), Yinlingquan (SP 9) and Zigong (EX-CA1). The acupoints were modified according to the different syndromes. In the combined therapy group, on the basis of the regimen as the heat sensitive moxibustion group, after vaginal bleeding stopped, the acupoint injection was given alternatively at bilateral Tiangong (extra, 1.0 cm inferior and bilateral to the cervix) with lidocaine 1 mL, amikacin 2 mL and salvia injection 2 mL. The treatment was given once every day, the treatment for 10 times as one course and a total of 3 courses were required. The endometrial type, thickness, uterine arterial plusatility index (PI) and resistance index (RI) were observed in the patients of each group. After treatment, the numbers of A-type endometrial type in the combined therapy group and the heat sensitive moxibustion group were remarkably higher than those of the control group [57.1% (40/7) vs 31.4% (22/70), 50.0% (35/70) vs 31.4% (22/70), both P <0.05]. The endometrial thickness after treatment was all increased as compared with that before treatment in each group

  2. Técnica de biópsia hepática em eqüino por laparoscopia Hepatic biopsy in horses by laparoscopy

    Directory of Open Access Journals (Sweden)

    Luis Cláudio Lopes Correia da Silva

    2002-06-01

    Full Text Available Este trabalho experimental objetivou a avaliação do uso da laparoscopia para biópsia hepática em eqüino e o estudo das possíveis alterações clínicas e laboratoriais decorrentes de tal procedimento. Foram utilizados 10 animais, os quais foram submetidos a procedimento cirúrgico em posição quadrupedal, por abordagem pelo flanco direito, no 17º espaço intercostal, após jejum alimentar e hídrico de 36 e 18 horas respectivamente. A avaliação pós-operatória constou de exame físico diário e colheita de amostras de sangue seriadas. O procedimento possibilitou inspeção dos órgãos e estruturas anatômicas localizados dorsalmente à direita da cavidade abdominal, favorecendo a escolha do local de biópsia hepática. Não foram observadas alterações no exame físico dos animais. Os exames hematológicos e de função hepática não apresentaram alterações significativas. Concluiu-se que o emprego da laparoscopia para realização de biópsia hepática em eqüino é simples, eficaz e seguro.The purpose of this research was to evaluate the use of laparoscopy in obtaining hepatic biopsy in horses and to determine a possible clinical and laboratorial changes related to the procedure. Ten animals were submitted to 36 hours of fastening and 18 hours of water deprivation and then operated in the standing position, through a right flank approach at the level of the 17th intercostal space. Post-operative evaluation consisted of daily physical examination and seriated blood sampling. The procedure allowed for wide visualization of the viscera and anatomical structures located on the right side of the abdominal cavity, favouring the choice of the spot for hepatic biopsy collection. No changes were noted in the physical state of the animals and alterations in hemogram and hepatic function tests were not statistically significant. It was concluded that laparoscopy is a simple, effective and safe technique for obtaining hepatic biopsy

  3. Pushing the envelope: laparoscopy and primary anastomosis are technically feasible in stable patients with Hinchey IV perforated acute diverticulitis and gross faeculent peritonitis.

    Science.gov (United States)

    Di Saverio, Salomone; Vennix, Sandra; Birindelli, Arianna; Weber, Dieter; Lombardi, Raffaele; Mandrioli, Matteo; Tarasconi, Antonio; Bemelman, Willem A

    2016-12-01

    Modern management of severe acute complicated diverticulitis continues to evolve towards more conservative and minimally invasive strategies. Although open sigmoid colectomy with end colostomy remains the most commonly used procedure for the treatment of perforated diverticulitis with purulent/faeculent peritonitis, recent major advances challenged this traditional approach, including the increasing attitude towards primary anastomosis as an alternative to end colostomy and use of laparoscopic approach for urgent colectomy. Provided an accurate patients selection, having the necessary haemodynamic stability, pneumoperitoneum is established with open Hasson technique and diagnostic laparoscopy is performed. If faeculent peritonitis (Hinchey IV perforated diverticulitis) is found, laparoscopy can be continued and a further three working ports are placed using bladeless trocars, as in traditional laparoscopic sigmoidectomy, with the addition of fourth trocar in left flank. The feacal matter is aspirated either with large-size suction devices or, in case of free solid stools, these can be removed with novel application of tight sealing endobags, which can be used for scooping the feacal content out and for its protected retrieval. After decontamination, a sigmoid colectomy is performed in the traditional laparoscopic fashion. The sigmoid is fully mobilised from the retroperitoneum, and mesocolon is divided up to the origin of left colic vessels. Whenever mesentery has extremely inflamed and thickened oedematous tissues, an endostapler with vascular load can be used to avoid vascular selective ligatures. Splenic flexure should be appropriately mobilised. The specimen is extracted through mini-Pfannenstiel incision with muscle splitting technique. Transanal colo-rectal anastomosis is fashioned. Air-leak test must be performed and drains placed where appropriate. The video shows operative technique for a single-stage, entirely laparoscopic, washout and sigmoid colectomy

  4. The use of laparoscopy in the diagnosis and treatment of blunt and penetrating abdominal injuries: 10-year experience at a level 1 trauma center.

    Science.gov (United States)

    Johnson, Jeremy J; Garwe, Tabitha; Raines, Alexander R; Thurman, Joseph B; Carter, Sandra; Bender, Jeffrey S; Albrecht, Roxie M

    2013-03-01

    Diagnostic laparoscopy (DL) has decreased the rate of nontherapeutic laparotomy for patients suffering from penetrating injuries. We evaluated whether DL similarly lowers the rate of nontherapeutic laparotomy for patients with blunt injuries. All patients undergoing DL over a 10-year period (ie, 2001-2010) in a single level 1 trauma center were classified by the mechanism of injury. Demographic and perioperative data were compared using the Student t and Fisher exact tests. There were 131 patients included, 22 of whom sustained blunt injuries. Patients suffering from blunt injuries were more severely injured (Injury Severity Score 18.0 vs 7.3, P = .0001). The most common indication for DL after blunt injury was a computed tomographic scan concerning for bowel injury (59.1%). The rate of nontherapeutic laparotomy for patients sustaining penetrating vs blunt injury was 1.8% and nil, respectively. DL, when coupled with computed tomographic findings, is an effective tool for the initial management of patients with blunt injuries. Copyright © 2013 Elsevier Inc. All rights reserved.

  5. Introduction of staging laparoscopy in the management of advanced epithelial ovarian, tubal and peritoneal cancer: impact on prognosis in a single institution experience.

    Science.gov (United States)

    Fagotti, A; Vizzielli, G; Fanfani, F; Costantini, B; Ferrandina, G; Gallotta, V; Gueli Alletti, S; Tortorella, L; Scambia, G

    2013-11-01

    To evaluate the prognostic impact of routinely use of staging laparoscopy (S-LPS) in patients with primary advanced epithelial ovarian cancer (AEOC). All women were submitted to S-LPS before receiving primary debulking surgery (PDS) or neoadjuvant treatment (NACT). The surgical and survival outcome were evaluated by univariate and multivariate analysis. Among 300 consecutive patients submitted to S-LPS no complications related to the surgical procedure were registered. The laparoscopic evaluation showed that almost half of the patients (46.3%) had a high tumor load. One-hundred forty-eight (49.3%) women were considered suitable for PDS and the remaining 152 (50.7%) were submitted to NACT. The percentages of complete (residual tumor, RT=0) and optimal (RTperformance status (p=0.016) maintained an independent association with the PFS. Including S-LPS in a tertiary referral center for the management AEOC does not appear to have a negative impact in terms of survival and it may be helpful to individualize the treatment avoiding unnecessary laparotomies and surgical complications. © 2013.

  6. Transverse Skin Crease versus Vertical Midline Incision versus Laparoscopy for Right Hemicolectomy: A Systematic Review—Current Status of Right Hemicolectomy

    Directory of Open Access Journals (Sweden)

    Alberto Santoro

    2014-01-01

    Full Text Available Purpose. The right hemicolectomy may be conducted through laparoscopic or laparotomic surgery, transverse or midline incisions. The transverse laparotomy offers some advantages compared to the midline laparotomy and laparoscopy. A literature review was performed to evaluate the possible advantages of the transverse incision versus midline incision or laparoscopic right hemicolectomy. Methods. A systematic research was performed in Medline, Embase, Cochrane Central Register of Controlled Trials, CINAHL, BioMed Central, and the Science Citation Index. Results. Laparotomic right hemicolectomy with transverse incision is preferable to laparotomic hemicolectomy with midline incision. A transverse incision offers a lessened postoperative pain following physical activity, a lessened need to administer analgesic therapy during the post-operative time, better aesthetic results, and a better post-operative pulmonary function. Open surgery with transverse or midline incision ensured a shorter operative time, lower costs and a greater length of the incision compared to the laparoscopic. However, there are no differences in the oncological outcomes. Conclusions. It was not possible to identify significant differences between the open right hemicolectomy with transverse incision versus the open right hemicolectomy with midline incision or laparoscopic hemicolectomy.

  7. Comparison of scanning scintigraphy and laparoscopy-biopsy data in the diagnosis of liver diseases. First results based on 35 cases

    International Nuclear Information System (INIS)

    Guillet, Robert.

    1976-01-01

    The liver is implicated in many functions, particularly the bile function, metabolic phenomena concerning glucids, lipids, proteids and coagulation, certain enzyme functions and cleansing processes involving a liver uptake stage followed by a biliary or urinary excretion stage. In view of the complexity of this metabolism it is obviously difficult to investigate the liver functions as a whole by a single set test. Furthermore the analysis of information supplied by scintigraphy implies rather complex technology, especially as these data are not always expressed in a universal form which clinicians can interpret directly. This can raise a barrier between the records and the doctor causing errors to appear not only in the interpretation but also in the indication of what method and products should be used. One of the aims of our future research is to demonstrate the inadequacy of a standard method using a single procedure and only one radioactive substance in hepatobiliary diseases of different mechanisms. To begin with therefore we should like to establish the advantages and limits of 99m technetium in the scanning scintigraphy morphological exploration of the liver, taking laparoscopy as a basis by comparison. We shall then attempt to define the criteria which in our opinion would allow a more rational use of liver scintigraphy in our medical care unit [fr

  8. Laparoscopia na decisão da estratégia terapêutica para o casal infértil Laparoscopy in the decision of treatment strategy for the infertile couple

    Directory of Open Access Journals (Sweden)

    Nuno Ricardo Goçalves Baptista Pereira

    2010-09-01

    laparoscopia revelou obstrução bilateral. Em 15 casos (65,2% em que a HSG havia demonstrado obstrução bilateral, a laparoscopia foi normal ou revelou apenas obstrução unilateral. CONCLUSÕES: a laparoscopia demonstrou sua relevância diagnóstica e terapêutica revelando-se fundamental na clarificação do status tubo-peritoneal. Permitiu a realização concomitante de atos terapêuticos, possibilitando a definição da melhor estratégia terapêutica no casal infértil.PURPOSE: to evaluate the contribution of diagnostic laparoscopy to approach the infertile couple. METHODS: retrospective analysis of 86 consecutive cases of patients who were accompanied in the infertility appointments and were submitted to diagnostic laparoscopy from January 2004 to December 2006. Eighty-two of these patients had been submitted to hysterosalpingography (HSG prior to laparoscopy. The laparoscopic findings were analyzed, as well as the accessory procedures, and the results of the hysterosalpingography and of the laparoscopy were correlated. Statistical analysis was performed by the use of the Statistical Package for the Social Sciences 15. The sensitivity and the specificity of HSG were determined and the confidence intervals were calculated with an alpha error of 0.05 (95%CI. RESULTS: the laparoscopy revealed 21 cases of endometriosis (24.4%, 14 cases of uni/bilateral inflammatory disease of the salpinx (16.3%, and 16 cases of pelvic inflammatory disease (18.6%. Adhesiolysis and ablation of endometrial lesions were performed in eight patients. There were also other accessory procedures: two salpingostomies, two paraovarian cystectomies, two ovarian cystectomies and three ovarian drillings. The tubal patency test during laparoscopy was normal in 44 cases (53%, revealed unilateral obstruction in 21 cases (25.3% and bilateral obstruction in 17 cases (20.5%. The results of the hysterosalpingography were similar to those of the laparoscopy in 44 out of the 82 cases (53.7%. HSG sensitivity was

  9. Paperback atlas of anatomical sectional images: Computerized tomography and NMR imaging. Vol. 1. Head, neck, vertebral column, joints; Taschenatlas der Schnittbildanatomie: Computertomographie und Kernspintomographie. Bd. 1. Kopf, Hals, Wirbelsaeule, Gelenke

    Energy Technology Data Exchange (ETDEWEB)

    Moeller, T.B. [Caritas-Krankenhaus, Dillingen (Germany); Reif, E. [Caritas-Krankenhaus, Dillingen (Germany)

    1993-12-31

    Using the nomenclature relating to X-ray findings, the paperback atlas provides a concise, yet accurate description of fine anatomical structures visualized by sectional imaging procedures. Each of the approx. 250 sample images shown for the regions of the head (including neurocranium), vertebral column, neck, thorax, abdomen and muscosceletal system (including joints) is supplemented with a drawing that permits an immediate identification of any structure of interest. (orig.) [Deutsch] Der Taschenatlas beschreibt komprimiert und unter Verwendung der roentgenspezifischen Nomenklatur die anatomischen Details der Schnittbilddiagnostik. Jedem der rund 250 exemplarischen Schnittbilder aus den Bereichen Kopf (inkl. Neurokranium), Wirbelsaeule, Hals, Thorax, Abdomen und muskuloskeletalem System (inkl. Gelenke) ist eine Zeichnung zugeordnet, die das rasche Auffinden der jeweils gesuchten Struktur ermoeglicht. (orig.)

  10. Impact of locomotion training with a neurologic controlled hybrid assistive limb (HAL) exoskeleton on neuropathic pain and health related quality of life (HRQoL) in chronic SCI: a case study (.).

    Science.gov (United States)

    Cruciger, Oliver; Schildhauer, Thomas A; Meindl, Renate C; Tegenthoff, Martin; Schwenkreis, Peter; Citak, Mustafa; Aach, Mirko

    2016-08-01

    Chronic neuropathic pain (CNP) is a common condition associated with spinal cord injury (SCI) and has been reported to be severe, disabling and often treatment-resistant and therefore remains a clinical challenge for the attending physicians. The treatment usually includes pharmacological and/or nonpharmacological approaches. Body weight supported treadmill training (BWSTT) and locomotion training with driven gait orthosis (DGO) have evolved over the last decades and are now considered to be an established part in the rehabilitation of SCI patients. Conventional locomotion training goes along with improvements of the patients' walking abilities in particular speed and gait pattern. The neurologic controlled hybrid assistive limb (HAL®, Cyberdyne Inc., Ibraki, Japan) exoskeleton, however, is a new tailored approach to support motor functions synchronously to the patient's voluntary drive. This report presents two cases of severe chronic and therapy resistant neuropathic pain due to chronic SCI and demonstrates the beneficial effects of neurologic controlled exoskeletal intervention on pain severity and health-related quality of life (HRQoL). Both of these patients were engaged in a 12 weeks period of daily HAL®-supported locomotion training. In addition to improvements in motor functions and walking abilities, both show significant reduction in pain severity and improvements in all HRQoL domains. Although various causal factors likely contribute to abatement of CNP, the reported results occurred due to a new approach in the rehabilitation of chronic spinal cord injury patients. These findings suggest not only the feasibility of this new approach but in conclusion, demonstrate the effectiveness of neurologic controlled locomotion training in the long-term management of refractory neuropathic pain. Implications for Rehabilitation CNP remains a challenge in the rehabilitation of chronic SCI patients. Locomotion training with the HAL exoskeleton seems to improve CNP

  11. Judgement of the effectivity of radiotherapy on the basis of volume change by lymph node metastasis of head and neck tumors; Volumenveraenderung der Halslymphknotenmetastasen bei Kopf-Hals-Tumoren

    Energy Technology Data Exchange (ETDEWEB)

    Liszka, G. [Staatliches Onkologisches Inst., Budapest (Hungary). Roentgendiagnostische Abt.; Thalacker, U. [Staatliches Onkologisches Inst., Budapest (Hungary). Roentgendiagnostische Abt.; Somogyi, A. [Imre-Haynal-Universitaet fuer Gesundheitswissenschaften, Budapest (Hungary). Strahlentherapeutischer Lehrstuhl; Nemeth, G. [Imre-Haynal-Universitaet fuer Gesundheitswissenschaften, Budapest (Hungary). Strahlentherapeutischer Lehrstuhl

    1997-08-01

    Aim: This work is engaged with the volume change of neck lymph node metastasis of malignant tumors in the head-neck region during radiotherapy. Patients and Method: In 54 patients with head and neck tumors, the volume of neck lymph nodes before and after radiation was measured. The volumetry was done with CT planimetry. The total dose was 66 Gy (2 Gy/d) telecobalt from 2 lateral opponated fields. The time of volume change could be defined with measuring of the half-time and the doubling-time by the help of Schwartz formula. Results: After 10 Gy the volume diminution was about 20% and half-time 24 to 26 days. Afterwards the time of volume diminution picked up speed and finally achieved 60 to 72%. Meanwhile the half-time decreased to the half value. The result was independent of the site of primary tumor, the patient`s sex and age. (orig.) [Deutsch] Ziel: Diese Arbeit beschaeftigt sich mit der Volumenveraenderung von Halslymphknotenmetastasen maligner Tumoren im Kopf-Hals-Bereich waehrend einer strahlentherapeutischen Behandlung. Patienten und Methode: Bei 54 Patienten mit Kopf-Hals-Tumoren wurde das Volumen der Halslymphknotenmetastasen vor und nach Strahlenbehandlung (bei sieben Patienten auch nach 10 Gy) bestimmt. Der Primaertumor war in allen Faellen ein Plattenepithelkarzinom. Zur Bestimmung des Volumens der Lymphknotenmetastasen bietet sich als genauestes bildgebendes Verfahren die CT-Planimetrie an. Jeder Patient wurde mit Telekobalt ueber zwei opponierende laterale Felder bis zu einer Gesamtdosis von 66 Gy (taegliche Einzeldosis 2 Gy) bestrahlt. Die Dynamik der durch die Bestrahlung hervorgerufenen Volumenveraenderung wurde mit Hilfe der Halbwerts- bzw. Verdoppelungszeit nach der Formel von Schwartz berechnet. Ergebnisse: Nach 10 Gy betrug die Volumenverkleinerung etwa 20%, die Halbwertszeit 24 bis 26 Tage. Danach beschleunigte sich die Volumenverkleinerung und erreichte zuletzt 60 bis 72%. Die Halbwertszeit verringerte sich auf etwa die Haelfte. Das Ausmass

  12. Robot-Assisted Versus Laparoscopy-Assisted Proximal Gastrectomy for Early Gastric Cancer in the Upper Location: Comparison of Oncological Outcomes, Surgical Stress, and Nutritional Status.

    Science.gov (United States)

    Zhang, Kecheng; Huang, Xiaohui; Gao, Yunhe; Liang, Wenquan; Xi, Hongqing; Cui, Jianxin; Li, Jiyang; Zhu, Minghua; Liu, Guoxiao; Zhao, Huazhou; Hu, Chong; Liu, Yi; Qiao, Zhi; Wei, Bo; Chen, Lin

    2018-01-01

    An increasing amount of attention has been paid to minimally invasive function-preserving gastrectomy, with an increase in incidence of early gastric cancer in the upper stomach. This study aimed to compare oncological outcomes, surgical stress, and nutritional status between robot-assisted proximal gastrectomy (RAPG) and laparoscopy-assisted proximal gastrectomy (LAPG). Eighty-nine patients were enrolled in this retrospective study between November 2011 and December 2013. Among them, 27 patients underwent RAPG and 62 underwent LAPG. Perioperative parameters, surgical stress, nutritional status, disease-free survival, and overall survival were compared between the 2 groups. Sex, age, and comorbidity were similar in the RAPG and LAPG groups. There were also similar perioperative outcomes regarding operation time, complications, and length of hospital stay between the groups. The reflux esophagitis rates following RAPG and LAPG were 18.5% and 14.5%, respectively ( P = .842). However, patients in the RAPG group had less blood loss ( P = .024), more harvested lymph nodes ( P = .021), and higher costs than those in the LAPG group ( P .05). There appeared to be higher hemoglobin levels at 6 months ( P = .053) and a higher body mass index at 12 months ( P = .056) postoperatively in patients in the RAPG group compared with those in the LAPG group, but this difference was not significant. Similar disease-free survival and overall survival rates were observed between the groups. RAPG could be an alternative to LAPG for patients with early gastric cancer in the upper stomach with comparable oncological safety and nutritional status. Further well-designed, prospective, large-scale studies are needed to validate these results.

  13. Double-blind comparison of granisetron, promethazine, or a combination of both for the prevention of postoperative nausea and vomiting in females undergoing outpatient laparoscopies.

    Science.gov (United States)

    Gan, Tong J; Candiotti, Keith A; Klein, Stephen M; Rodriguez, Yiliam; Nielsen, Karen C; White, William D; Habib, Ashraf S

    2009-11-01

    Postoperative nausea and vomiting (PONV) and postdischarge nausea and vomiting (PDNV) are common problems after surgery. Prophylactic combination antiemetic therapy is recommended for patients at high risk for developing PONV and PDNV. Granisetron, a serotonin antagonist, is an effective antiemetic that is devoid of sedative side effect. Although promethazine is effective, commonly used doses are associated with sedation. This study investigates the combination of low doses of granisetron and promethazine for the prevention of PONV. Women undergoing ambulatory gynecological laparoscopy were enrolled. A standard general anesthetic regimen was prescribed. Fifteen minutes before the expected end of surgery, the patients were randomly assigned to receive granisetron 0.1 mg iv, promethazine 6.25 mg iv, or a combination of the two drugs. Prophylaxis with oral promethazine 12.5 mg, granisetron 1 mg, or both was started in the respective groups 12 hr after the end of surgery and continued every 12 hr until postoperative day 3 (a total of five oral doses). The following outcomes were recorded: total response rate (defined as no vomiting, no more than mild nausea, and no use of rescue antiemetic); incidence of nausea, vomiting, and use of rescue antiemetics; severity of nausea; patient activity level; and patient satisfaction with PONV management. Patients in the combination group had a higher total response rate at 6, 24, 48, and 72 hr after surgery compared with those who received promethazine alone (at 24 hr, Combination 69.6%, Promethazine 36.2%, Granisetron 53.3%; P = 0.0079). The maximum nausea scores were also lower in the combination group at 6, 24, 48, and 72 hr (Combination 1.7 +/- 2.2, Promethazine 4.0 +/- 3.6, Granisetron 3.1 +/- 3.2 at 24 hr; P granisetron and promethazine combination was more effective in reducing PONV and PDNV than promethazine monotherapy. The combination also reduced the severity of nausea.

  14. Assessment of Laparoscopic Skills Performance: 2D Versus 3D Vision and Classic Instrument Versus New Hand-Held Robotic Device for Laparoscopy.

    Science.gov (United States)

    Leite, Mariana; Carvalho, Ana F; Costa, Patrício; Pereira, Ricardo; Moreira, Antonio; Rodrigues, Nuno; Laureano, Sara; Correia-Pinto, Jorge; Vilaça, João L; Leão, Pedro

    2016-02-01

    Laparoscopic surgery has undeniable advantages, such as reduced postoperative pain, smaller incisions, and faster recovery. However, to improve surgeons' performance, ergonomic adaptations of the laparoscopic instruments and introduction of robotic technology are needed. The aim of this study was to ascertain the influence of a new hand-held robotic device for laparoscopy (HHRDL) and 3D vision on laparoscopic skills performance of 2 different groups, naïve and expert. Each participant performed 3 laparoscopic tasks-Peg transfer, Wire chaser, Knot-in 4 different ways. With random sequencing we assigned the execution order of the tasks based on the first type of visualization and laparoscopic instrument. Time to complete each laparoscopic task was recorded and analyzed with one-way analysis of variance. Eleven experts and 15 naïve participants were included. Three-dimensional video helps the naïve group to get better performance in Peg transfer, Wire chaser 2 hands, and Knot; the new device improved the execution of all laparoscopic tasks (P < .05). For expert group, the 3D video system benefited them in Peg transfer and Wire chaser 1 hand, and the robotic device in Peg transfer, Wire chaser 1 hand, and Wire chaser 2 hands (P < .05). The HHRDL helps the execution of difficult laparoscopic tasks, such as Knot, in the naïve group. Three-dimensional vision makes the laparoscopic performance of the participants without laparoscopic experience easier, unlike those with experience in laparoscopic procedures. © The Author(s) 2015.

  15. Comparison of long-term results between laparoscopy-assisted gastrectomy and open gastrectomy with D2 lymph node dissection for advanced gastric cancer.

    Science.gov (United States)

    Hamabe, Atsushi; Omori, Takeshi; Tanaka, Koji; Nishida, Toshirou

    2012-06-01

    Laparoscopy-assisted gastrectomy (LAG) has been established as a low-invasive surgery for early gastric cancer. However, it remains unknown whether it is applicable also for advanced gastric cancer, mainly because the long-term results of LAG with D2 lymph node dissection for advanced gastric cancer have not been well validated compared with open gastrectomy (OG). A retrospective cohort study was performed to compare LAG and OG with D2 lymph node dissection. For this study, 167 patients (66 LAG and 101 OG patients) who underwent gastrectomy with D2 lymph node dissection for advanced gastric cancer were reviewed. Recurrence-free survival and overall survival time were estimated using Kaplan-Meier curves. Stratified log-rank statistical evaluation was used to compare the difference between the LAG and OG groups stratified by histologic type, pathologic T status, N status, and postoperative adjuvant chemotherapy. The adjusted Cox proportional hazards regression models were used to calculate the hazard ratios (HRs) of LAG. The 5-year recurrence-free survival rate was 89.6% in the LAG group and 75.8% in the OG group (nonsignificant difference; stratified log-rank statistic, 3.11; P = 0.0777). The adjusted HR of recurrence for LAG compared with OG was 0.389 [95% confidence interval (CI) 0.131-1.151]. The 5-year overall survival rate was 94.4% in the LAG group and 78.5% in the OG group (nonsignificant difference; stratified log-rank statistic, 0.4817; P = 0.4877). The adjusted HR of death for LAG compared with OG was 0.633 (95% CI 0.172-2.325). The findings show that LAG with D2 lymph node dissection is acceptable in terms of long-term results for advanced gastric cancer cases and may be applicable for advanced gastric cancer treatment.

  16. Cytoprotection with amifostine in radiotherapy or combined radio-chemotherapy of head and neck cancer; Zytoprotektion mit Amifostin in der Strahlentherapie bzw. Strahlen-/Chemotherapie von Kopf-Hals-Tumoren

    Energy Technology Data Exchange (ETDEWEB)

    Altmann, S.; Hoffmanns, H. [Krankenhaus Maria-Hilf, Moenchengladbach (Germany). Strahlentherapie und Radiologische Onkologie

    1999-11-01

    Therapieformen. In der vorliegenden Untersuchung wird sein Einfluss auf die Akuttoxizitaet der alleinigen Strahlen- bzw. kombinierten Radiochemotherapie bei Patienten mit fortgeschrittenen Kopf-Hals-Tumoren ueberprueft. Patienten und Methodik: Es wurden 23 Patienten mit fortgeschrittenen Kopf-Hals-Tumoren, ueberwiegend im Stadium III und IV, mit praeoperativer Radiatio (n=1), prae- und postoperativer Radiatio (n=5), postoperativer Radiatio (n=11) bzw. kombinierter Radiochemotherapie (n=6) behandelt. Vor jeder Behandlung wurden 500 mg Amifostin intravenoes ueber 15 Minuten verabreicht. Die Therapiedokumentation dieser unselektierten Patientengruppe wurde retrospektiv mit einem historischen Patientenkollektiv verglichen, das 17 Patienten umfasste. Resultate: Bei 15 Patienten (65%) unter Amifostin kam es zu therapiebedingten Nebenwirkungen wie Mukositis und Dermatitis {<=}WHO-Grad 2, welche Radiotherapiepausen (Mittelwert: 6,5, maximal 17 Tage) erforderten. Schleimhaut- bzw. dermatoligische Nebenwirkungen vom WHO-Grad 3 oder 4 wurde bei keinem Patienten beobachtet. In der historischen Kontrollgruppe trat eine signifikant hoehere Akuttoxizitaet auf. Eine Stomatitis oder Epitheliolyse vom WHO-Grad 3 wurde bei sieben Patienten (41%) beobachtet. Bei 15 Patienten (88%) erforderten die therapiebedingten Nebenwirkungen Radiotherapiepausen (Mittelwert: 16, maximal 40 Tage; p=0,0016). Schlussfolgerung: Die zusaetzliche Gabe von Amifostin vor jeder Bestrahlung scheint in einer deutlichen Reduktion der Akuttoxizitaet bei der Strahlen- bzw. kombinierten Strahlen-/Chemotherapie bei Patienten mit Kopf-Hals-Tumoren zu resultieren und eine zeitgerechtere Applikation zu ermoeglichen. (orig.)

  17. Hand-assisted robotic right donor nephrectomy in patient with total situs inversus: A case report.

    Science.gov (United States)

    Gonzalez-Heredia, Raquel; Garcia-Roca, Raquel; Benedetti, Enrico

    2016-01-01

    Total situs inversus" is an infrequent congenital condition. The robot has been already proved as a safe and attractive approach for living donor nephrectomies. We report here the first right donor nephrectomy in a patient with total situs inversus that is performed using the Da Vinci platform. Published by Elsevier Ltd.

  18. Hand-assisted robotic right donor nephrectomy in patient with total situs inversus: A case report

    Directory of Open Access Journals (Sweden)

    Raquel Gonzalez-Heredia

    2016-01-01

    Full Text Available Total situs inversus” is an infrequent congenital condition. The robot has been already proved as a safe and attractive approach for living donor nephrectomies. We report here the first right donor nephrectomy in a patient with total situs inversus that is performed using the Da Vinci platform.

  19. Hand-assisted robotic right donor nephrectomy in patient with total sinus inversus: A case report

    Science.gov (United States)

    Gonzalez-Heredia, Raquel; Garcia-Roca, Raquel; Benedetti, Enrico

    2016-01-01

    Total situs inversus” is an infrequent congenital condition. The robot has been already proved as a safe and attractive approach for living donor neprectomies. We report here the first right donor nephrectomy in a patient with total sinus inversus that is performed using the Da Vinci platform. PMID:27085108

  20. Advanced Myoelectric Control for Robotic Hand-Assisted Training: Outcome from a Stroke Patient.

    Science.gov (United States)

    Lu, Zhiyuan; Tong, Kai-Yu; Shin, Henry; Li, Sheng; Zhou, Ping

    2017-01-01

    A hand exoskeleton driven by myoelectric pattern recognition was designed for stroke rehabilitation. It detects and recognizes the user's motion intent based on electromyography (EMG) signals, and then helps the user to accomplish hand motions in real time. The hand exoskeleton can perform six kinds of motions, including the whole hand closing/opening, tripod pinch/opening, and the "gun" sign/opening. A 52-year-old woman, 8 months after stroke, made 20× 2-h visits over 10 weeks to participate in robot-assisted hand training. Though she was unable to move her fingers on her right hand before the training, EMG activities could be detected on her right forearm. In each visit, she took 4× 10-min robot-assisted training sessions, in which she repeated the aforementioned six motion patterns assisted by our intent-driven hand exoskeleton. After the training, her grip force increased from 1.5 to 2.7 kg, her pinch force increased from 1.5 to 2.5 kg, her score of Box and Block test increased from 3 to 7, her score of Fugl-Meyer (Part C) increased from 0 to 7, and her hand function increased from Stage 1 to Stage 2 in Chedoke-McMaster assessment. The results demonstrate the feasibility of robot-assisted training driven by myoelectric pattern recognition after stroke.

  1. [János Pusztay. Nyelvével hal a nemzet. Az oroszországi finnugor népek jelene és jövője 11 pontban] / Маргарита Кузнецова

    Index Scriptorium Estoniae

    Кузнецова, Маргарита

    2007-01-01

    Arvustus: Pusztay, János. Nyelvével hal a nemzet. Az oroszországi finnugor népek jelene és jövője 11 pontban. Budapest, 2006. (A Magyarságkutatás könyvtára XXVIII). Soome-ugri rahvaste tänapäevast ja tulevikust Vene Föderatsioonis

  2. Supportive treatment with megestrol acetate during radio-(chemo-)therapy. A randomized trial; Supportive Behandlung mit Megestrolacetat waehrend der Radio-(Chemo-)Therapie bei Patienten mit Tumoren im Kopf-Hals-Bereich. Eine randomisierte Studie

    Energy Technology Data Exchange (ETDEWEB)

    Fietkau, R [Erlangen-Nuernberg Univ., Erlangen (Germany). Strahlentherapeutische Klinik; Riepl, M [Erlangen-Nuernberg Univ., Erlangen (Germany). Strahlentherapeutische Klinik; Kettner, H [Bristol Arzneimittel GmbH, Muenchen (Germany). Medizinische Abt.; Hinke, A [Wissenschaftlicher Service Pharma, Monheim (Germany); Sauer, R [Erlangen-Nuernberg Univ., Erlangen (Germany). Strahlentherapeutische Klinik

    1996-03-01

    Tumoranorexie und -kachexie bei Patienten mit infauster Prognose ist bekannt. Ob sich ein supportiver Effekt von Megestrolacetat waehrend einer intensiven Radio-(Chemo-)Therapie ergibt, wurde bislang noch nicht untersucht. Dies erfolgte jetzt bei Patienten mit fortgeschritten Tumoren im Kopf-Hals-Bereich. Waehrend und bis sechs Wochen nach der Strahlentherapie erhielten die Patienten des Therapiearmes 160 mg/d Megestrolacetat. Vor, waehrend und nach der Strahlentherapie wurden anthropometrische und laborchemische Parameter bestimmt sowie die subjektive Lebensqualitaet der Patienten mittels des `Quality of life`-Index nach Padilla et al. erfasst. Ergebnisse: Zur endgueltigen Auswertung standen 61 Patienten (Kontrollarm: n=30, Therapiearm: n=31) zur Verfuegung. Ein Patient lehnte nach Randomisation die weitere Teilnahme ab. Je ein Patient im Kontroll- und Placeboarm schieden bei Verdacht auf Nebenwirkungen (Impotenz, Diarrhoe) aus. Weitere Nebenwirkungen wurden nicht beobachtet. Im Kontrollarm verschlechterten sich die Ernaehrungsparameter (Koerpergewicht, Trizepshautfaltendicke) und das subjektive Befinden unter der Bestrahlung sehr schnell und erholten sich anschliessend kaum. Im Gegensatz dazu konnten die mit Megestrolacetat behandelten Patienten diese Werte auf dem Ausgangsniveau stabiliseren. Dieser Unterschied zeigt sich am deutlichsten bei den ausschliesslich oral ernaehrten Patienten (Gewichtsverlust waehrend der Therapie im Kotrollarm: -4,1 kg; im Therapiearm: -0,8 kg; p=0,004), weniger bei den mittels perkutaner endoskopisch kontrollierten Gastrostomie (PEG) versorgten Patienten (Gewichtsverlust im Kontrollarm: -2,4 kg; im Therapiearm: -0,8 kg; p=0,14). Schlussfolgerungen: Die prophylaktische Gabe von Megestrolacetat kann bei Patienten mit Kopf-Hals-Tumoren waehrend einer Radio/(Chemo-)Therapie eine Verschlechterung des Ernaehrungszustands und tendenziell der Lebensqualitaet verhindern.

  3. High response rates following paclitaxel/5-FU and simultaneous radiotherapy in advanced head and neck carcinoma; Hohe Remissionsraten unter simultaner Radio- und Chemotherapie mit Paclitaxel/5-FU in der Behandlung fortgeschrittener Kopf-Hals-Tumoren

    Energy Technology Data Exchange (ETDEWEB)

    Schroeder, M.; Westerhausen, M. [St.-Johannes-Hospital, Duisburg (Germany). Medizinische Klinik II; Makoski, H.B. [Staedtische Kliniken, Duisburg (Germany). Radioonkologie; Sesterhenn, K. [St. Anna-Krankenhaus, Duisburg (Germany). HNO-Klinik; Schroeder, R. [Bristol Myers Squibb, Muenchen (Germany). Dept. of Oncology

    1997-11-01

    The main stay of treatment for head and neck cancer patients with advanced disease has been chemotherapy with Cisplatin/5-FU and simultaneous applied radiotherapy. With this multimodality treatment including radical surgery after two cycles of neoadjuvant chemotherapy and 40 Gy radiotherapy we reported 60% complete remission after 5 years for patients with stage III/IV of head and neck cancer. Paclitaxel, a new plant product, has demonstrated significant antineoplastic activity in head and neck tumors (ECOG-Study: 40% RR). Therefore we performed a trial with Taxol/5-FU and simultaneous radiation in a neoadjuvant and postoperative adjuvant setting of stage III/IV squamous cell carcinoma of the head and neck with pre-existent contraindication against Cisplatin. Patients and Methods: 30 patients with a primarily inoperable stage III/IV of SCC of the head and neck were enrolled to receive day 1 and 29 Taxol 175 mg/m{sup 2} as a 3-hour-infusion, followed by 120-hour-cvi of 1000 mg/m{sup 2}/d 5-FU. Locally irradiation was given ad 40 Gy (2 Gy/d/day 1-26). Radical surgery followed about day 56. Postoperatively patients received again 2 cycles of Taxol/5-FU and simultaneous irradiation with 30 Gy. Results: So far 30 patients were treated and all patients reached a CR after complete treatment, ongoing for 23/30 patients for 6 till 34 months: 4 patients developed a second neoplasia, and 3 patients gloved a local relapse. The principal toxicity was moderate (neutropenia, peripheral neuropathy, arthralgia/myalgia) and sensible with supportive care (e.g. PEG). Conclusions: The results suggest that the treatment of SCC of the head and neck with Taxol/5-FU and simultaneous radiation and radical surgery is a highly effective schedule and comparable with the treatment with Cisplatin/5-FU. (orig.) [Deutsch] Der Standard in der Behandlung weit forgeschrittener, primaer inoperabler Kopf-Hals-Tumoren stellte die Cisplatinhaltige Chemotherapiekombination mit 5-FU dar mit simultan

  4. Simultaneous development of laparoscopy and robotics provides acceptable perioperative outcomes and shows robotics to have a faster learning curve and to be overall faster in rectal cancer surgery: analysis of novice MIS surgeon learning curves.

    Science.gov (United States)

    Melich, George; Hong, Young Ki; Kim, Jieun; Hur, Hyuk; Baik, Seung Hyuk; Kim, Nam Kyu; Sender Liberman, A; Min, Byung Soh

    2015-03-01

    Laparoscopy offers some evidence of benefit compared to open rectal surgery. Robotic rectal surgery is evolving into an accepted approach. The objective was to analyze and compare laparoscopic and robotic rectal surgery learning curves with respect to operative times and perioperative outcomes for a novice minimally invasive colorectal surgeon. One hundred and six laparoscopic and 92 robotic LAR rectal surgery cases were analyzed. All surgeries were performed by a surgeon who was primarily trained in open rectal surgery. Patient characteristics and perioperative outcomes were analyzed. Operative time and CUSUM plots were used for evaluating the learning curve for laparoscopic versus robotic LAR. Laparoscopic versus robotic LAR outcomes feature initial group operative times of 308 (291-325) min versus 397 (373-420) min and last group times of 220 (212-229) min versus 204 (196-211) min-reversed in favor of robotics; major complications of 4.7 versus 6.5 % (NS), resection margin involvement of 2.8 versus 4.4 % (NS), conversion rate of 3.8 versus 1.1 (NS), lymph node harvest of 16.3 versus 17.2 (NS), and estimated blood loss of 231 versus 201 cc (NS). Due to faster learning curves for extracorporeal phase and total mesorectal excision phase, the robotic surgery was observed to be faster than laparoscopic surgery after the initial 41 cases. CUSUM plots demonstrate acceptable perioperative surgical outcomes from the beginning of the study. Initial robotic operative times improved with practice rapidly and eventually became faster than those for laparoscopy. Developing both laparoscopic and robotic skills simultaneously can provide acceptable perioperative outcomes in rectal surgery. It might be suggested that in the current milieu of clashing interests between evolving technology and economic constrains, there might be advantages in embracing both approaches.

  5. Fotodynamisk terapi af hoved-hals-kraeft

    DEFF Research Database (Denmark)

    Lajer, Christel Braemer; Specht, Lena; Kirkegaard, Jørgen

    2006-01-01

    Photodynamic therapy (PDT) is a new treatment for head and neck cancer. The principle of the treatment is a photochemical reaction initiated by light activation of a photosensitizer, which causes the death of the exposed tissue. This article presents the modes of action of PDT and the techniques ...

  6. Hal in the Classroom: Science Fiction Films.

    Science.gov (United States)

    Amelio, Ralph J.

    The articles in this book provide political, social, sociological, psychological, sexual, mythical, literary, and filmic approaches to the study of science fiction film. "Journey into Science Fiction" by W. Johnson and "The Imagination of Disaster" by S. Sontag treat broadly the essentials of science fiction films. "For the Future: The Science…

  7. Fotodynamisk terapi af hoved-hals-kraeft

    DEFF Research Database (Denmark)

    Lajer, Christel Braemer; Specht, Lena K; Kirkegaard, Jørgen

    2006-01-01

    Photodynamic therapy (PDT) is a new treatment for head and neck cancer. The principle of the treatment is a photochemical reaction initiated by light activation of a photosensitizer, which causes the death of the exposed tissue. This article presents the modes of action of PDT and the techniques...

  8. Radiology reporting-from Hemingway to HAL?

    Science.gov (United States)

    Brady, Adrian P

    2018-04-01

    The job of the diagnostic radiologist is two-fold: identifying and interpreting the information available from diagnostic imaging studies and communicating that interpretation meaningfully to the referring clinician. However skilled our interpretive abilities, our patients are not well served if we fail to convey our conclusions effectively. Despite the central importance of communication skills to the work of radiologists, trainees rarely receive significant formal training in reporting skills, and much of the training given simply reflects the trainer's personal preferences. Studies have shown a preference among referrers for reports in a structured form, with findings given in a standard manner, followed by a conclusion. The technical competence to incorporate structured report templates into PACS/RIS systems is growing, "...and radiology societies (including the European Society of Radiology (ESR)) are active in producing and validating templates for a wide range of modalities and clinical circumstances. While some radiologists may prefer prose format reports, and much literature has been produced addressing "dos and don'ts" for such prose reports, it seems likely that structured reporting will become the norm in the near future. Benefits will include homogenisation and standardisation of reports, certainty that significant information has not been omitted, and capacity for data-mining of structured reports for research and teaching purposes. • The radiologist's job includes interpretation of imaging studies AND communication. • Traditionally, communication has taken the form of a prose report. • Referrers have been shown to prefer reports in a structured format. • Structured reports have many advantages over traditional prose reports. • It is likely that structured reports represent the future standard.

  9. Estudio comparativo de las moléculas isovalentes de interés atmosférico CF3Cl y CF3Br y sus correspondientes halógenos aislados Cl y Br.

    Science.gov (United States)

    Mayor, E.; Velasco, A. M.; Martín, I.; Lavín, C.

    Los estados Rydberg moleculares han suscitado en los últimos años un creciente interés entre los espectroscopistas experimentales, motivado en parte por el desarrollo de nuevas técnicas espectroscópicas capaces de investigar estos estados altamente excitados electrónicamente. Los procesos de fotoabsorción que implican estados Rydberg en los derivados halogenados del metano son de gran importancia, debido a su abundancia en la atmósfera y a sus implicaciones medioambientales. Por ello, la obtención de datos relativos a sus fuerzas de oscilador es de gran interés. En este trabajo se aborda el estudio de dichas propiedades para las moléculas isovalentes CF3Cl y CF3Br. Ambas moléculas presentan idéntica estructura electrónica para el estado fundamental por lo que se espera que sus espectros Rydberg presenten grandes similitudes, en ausencia de perturbaciones. Por ello y dada la escasez de datos relativos a fuerzas de oscilador, hemos establecido la corrección de nuestros resultados en base a las analogías esperadas en las intensidades espectrales correspondientes a transiciones análogas. Por otro lado, Novak y col. [1] han encontrado experimentalmente un marcado carácter atómico en el espectro correspondiente a estas moléculas, siendo muy similar a los de los átomos de Cl y Br. Por ello en el presente trabajo, además de establecer la comparación entre ambas moléculas hemos buscado las similitudes con sus respectivos halógenos. Los cálculos relativos a las especies moleculares se han realizado utilizando la Metodología Molécular de Orbítales de Defecto Cuántico (MQDO) [2], mientras que para el estudio de los átomos de Cl y Br se empleó la versión relativista del método (RQDO) [3].

  10. A prospective, double-blind study of prophylaxis of radioxerostomia by coumarin/troxerutine in patients with head and neck cancer; Prospektive, doppelblinde Therapiestudie zur Prophylaxe der Radioxerostomie durch Cumarin/Troxerutin bei Patienten mit Kopf-Hals-Karzinomen

    Energy Technology Data Exchange (ETDEWEB)

    Groetz, K.A.; Al-Nawas, B.; Wagner, W. [Universitaetsklinik fuer Mund-, Kiefer- und Gesichtschirurgie, Mainz (Germany); Henneicke-von Zepelin, H.H.; Wuestenberg, P.; Naser-Hijazi, B. [Schaper und Bruemmer, Salzgitter (Germany). Hauptbereich Medizin; Kohnen, R. [Institute for Medical Research Management and Biometrics, Nuernberg (Germany); Bockisch, A. [Universitaetsklinik und Poliklinik fuer Nuklearmedizin, Essen (Germany); Kutzner, J. [Universitaetsklinik und Poliklinik fuer Radiologie, Mainz (Germany); Belz, G.G. [Zentrum fuer Kardiovaskulaere Pharmakologie, Mainz (Germany)

    1999-08-01

    size was too low to prove statistically also the benefit of coumarin/troxerutine with the scintigraphic method. Sialometry seems not suitable for the assessment of early radiation effects. (orig.) [German] Fragestellung: Eine kausale Behandlung der radiogenen Sialadenitis ist bislang nicht etabliert. In einer prospektiven, randomisierten, plazebokontrollierten Doppelblindstudie sollte die pharmakologische Wirksamkeit von Cumarin/Troxerutin (Venalot {sup trademark} Depot) zur Speicheldruesenprotektion unter einer Kopf-Hals-Bestrahlung bei Malignompatienten ueberprueft werden. Patienten und Methode: 48 Patienten mit Strahlentherapie (60 Gy) eines Kopf-Hals-Malignoms wurden in die Untersuchung eingeschlossen. Die Speicheldruesen lagen ueberwiegend im Herdvolumen der Bestrahlung. Primaere Zielparameter waren Sialometrie, Speicheldruesenfunktionsszintigraphie und fruehe Strahlenfolgen (RTOG-Score). Alle Befunde wurden zu sechs Untersuchungszeitpunkten erhoben: Eine Woche vor Bestrahlung (U1), zu Beginn (U2), zur Haelfte (U3) und am Ende der Bestrahlung (U4) sowie sieben Tage (U5) und 28 Tage post radiationem (U6). Ergebnisse: 23 Patienten (elf mit Verum-, zwoelf mit Plazebobehandlung) beendeten die Studie pruefplankonform mit allen Untersuchungen. Sialometrisch zeigten alle Patienten ab der Haelfte der Strahlentherapie (U3) stark verminderte Mundfluessigkeitsfliessraten, danach betrugen die Mediane der Flussraten 0 ml/min fuer beide Gruppen bis zu U6 (28 Tage nach Bestrahlung). Im Gesamtwirkungsmass nach O'Brien aus Sialoszintigraphie und klinischer Beurteilung war eine tendenzielle Ueberlegenheit von Verum gegenueber Plazebo zu beobachten (p=0,068). Der RTOG-Score zeigte bei allen Untersuchungen nach Bestrahlungsbeginn unter Verum signifikant niedrigere Befundauspraegungen frueher Strahlenfolgen als unter Plazebo (U3 bis U6: Jeweils p<0,05; 'Area under the Curve': p=0,032). Die szintigraphisch bestimmte Exkretionsfraktion zeigte fuer Verum eine tendenziell

  11. A randomized, placebo controlled, trial of preoperative sustained release Betamethasone plus non-controlled intraoperative Ketorolac or Fentanyl on pain after diagnostic laparoscopy or laparoscopic tubal ligation [ISRCTN52633712

    Directory of Open Access Journals (Sweden)

    Piller Marsha D

    2003-08-01

    Full Text Available Abstract Background Gynecological laparoscopic surgery procedures are often complicated by postoperative pain resulting in an unpleasant experience for the patient, delayed discharge, and increased cost. Glucocorticosteroids have been suggested to reduce the severity and incidence of postoperative pain. Methods This study examines the efficacy of a sustained release betamethasone preparation to reduce postoperative pain and the requirement for pain relief drugs after either diagnostic laparoscopy or tubal ligation. Patients were recruited, as presenting, after obtaining informed consent. Prior to surgery, patients were randomly selected by a computer generated table to receive either pharmacy-coded betamethasone (12 mg IM Celestone™ or an optically identical placebo injection of Intralipid™ and isotonic saline mixture. The effect of non-controlled prophylactic intraoperative treatment with either fentanyl or ketorolac per surgeon's orders was also noted in this study. Blood samples taken at recovery and at discharge times were extracted and analyzed for circulating betamethasone. Visual analog scale data on pain was gathered at six post-recovery time points in a triple blind fashion and statistically compared. The postoperative requirement for pain relief drugs was also examined. Results Although the injection achieved a sustained therapeutic concentration, no beneficial effect of IM betamethasone on postoperative pain or reduction in pain relief drugs was observed during the postoperative period. Indeed, the mean combined pain scores during the 2 hour postoperative period, adjusted for postoperative opioids as the major confounding factor, were higher approaching statistical significance (P = 0.056 in the treatment group. Higher pain scores were also observed for the tubal ligation patients relative to diagnostic laparoscopy. Intraoperative fentanyl treatment did not significantly lower the average pain score during the 2 hour postoperative

  12. Development and validation of a risk stratification score for ventral incisional hernia after abdominal surgery: hernia expectation rates in intra-abdominal surgery (the HERNIA Project).

    Science.gov (United States)

    Goodenough, Christopher J; Ko, Tien C; Kao, Lillian S; Nguyen, Mylan T; Holihan, Julie L; Alawadi, Zeinab; Nguyen, Duyen H; Flores, Juan R; Arita, Nestor T; Roth, J Scott; Liang, Mike K

    2015-04-01

    Ventral incisional hernias (VIH) develop in up to 20% of patients after abdominal surgery. No widely applicable preoperative risk-assessment tool exists. We aimed to develop and validate a risk-assessment tool to predict VIH after abdominal surgery. A prospective study of all patients undergoing abdominal surgery was conducted at a single institution from 2008 to 2010. Variables were defined in accordance with the National Surgical Quality Improvement Project, and VIH was determined through clinical and radiographic evaluation. A multivariate Cox proportional hazard model was built from a development cohort (2008 to 2009) to identify predictors of VIH. The HERNIAscore was created by converting the hazards ratios (HR) to points. The predictive accuracy was assessed on the validation cohort (2010) using a receiver operator characteristic curve and calculating the area under the curve (AUC). Of 625 patients followed for a median of 41 months (range 0.3 to 64 months), 93 (13.9%) developed a VIH. The training cohort (n = 428, VIH = 70, 16.4%) identified 4 independent predictors: laparotomy (HR 4.77, 95% CI 2.61 to 8.70) or hand-assisted laparoscopy (HAL, HR 4.00, 95% CI 2.08 to 7.70), COPD (HR 2.35; 95% CI 1.44 to 3.83), and BMI ≥ 25 kg/m(2) (HR1.74; 95% CI 1.04 to 2.91). Factors that were not predictive included age, sex, American Society of Anesthesiologists (ASA) score, albumin, immunosuppression, previous surgery, and suture material or technique. The predictive score had an AUC = 0.77 (95% CI 0.68 to 0.86) using the validation cohort (n = 197, VIH = 23, 11.6%). Using the HERNIAscore: HERNIAscore = 4(∗)Laparotomy+3(∗)HAL+1(∗)COPD+1(∗) BMI ≥ 25, 3 classes stratified the risk of VIH: class I (0 to 3 points),5.2%; class II (4 to 5 points),19.6%; and class III (6 points), 55.0%. The HERNIAscore accurately identifies patients at increased risk for VIH. Although external validation is needed, this provides a starting point to counsel patients and guide

  13. EUS-directed Transgastric ERCP (EDGE) Versus Laparoscopy-assisted ERCP (LA-ERCP) for Roux-en-Y Gastric Bypass (RYGB) Anatomy: A Multicenter Early Comparative Experience of Clinical Outcomes.

    Science.gov (United States)

    Kedia, Prashant; Tarnasky, Paul R; Nieto, Jose; Steele, Stephen L; Siddiqui, Ali; Xu, Ming-Ming; Tyberg, Amy; Gaidhane, Monica; Kahaleh, Michel

    2018-04-17

    The standard of care for managing pancreaticobiliary disease in altered Roux-en-Y gastric bypass patients is laparoscopy-assisted endoscopic retrograde cholangiopancreatography (LA-ERCP), but is limited by cost and adverse events. Recently a minimally invasive, completely endoscopic approach using endoscopic ultrasound (EUS) directed transgastric ERCP (EDGE) has been described. We aim to compare EDGE to LA-ERCP in this study. Patients from May 2005 to June 2017 with Roux-en-Y gastric bypass anatomy having undergone LA-ERCP or EDGE at 4 tertiary centers were captured in a registry. Patient demographics, procedural details, and clinical outcomes were measured for each group. Seventy-two patients (n=29 EDGE, n=43 LA-ERCP) were included in this study. There was no significant difference in the technical success of EDGE gastrogastric fistula (96.5%) versus LA-gastrostomy creation (100%). The success rate of achieving therapeutic ERCP (EDGE 96.5% vs. LA-ERCP 97.7%) and number of ERCP (EDGE 1.2 vs. LA-ERCP 1.02) needed to achieve clinical resolution was similar between both groups. Adverse event rate for EDGE, 24% (7/29) and LA-ERCP, 19% (8/43) was similar. The total procedure time (73 vs. 184 min) and length of hospital stay (0.8 vs. 2.65 d) was significantly shorter for EDGE compared to LA-ERCP. The overall weight change after EDGE was -6.6 lbs at an average 28-week follow-up. This study suggests that the EDGE procedure has similar technical success and adverse events compared with LA-ERCP with the benefit of significantly shorter procedure times and hospital stay. EDGE may offer a minimally invasive, effective option, with less resource utilization, and without significant weight gain.

  14. Effectiveness of composite resin polymerization using light-emitting diodes (LEDs or halogen-based light-curing units Efetividade de polimerização de uma resina composta fotopolimerizada por diodos emissores de luz (LEDs ou luz halógena

    Directory of Open Access Journals (Sweden)

    Bianca Micali

    2004-09-01

    Full Text Available The clinical performance of composite resins is greatly influenced by the quality of the light-curing unit used. The aim of this study was to compare the efficiency of a commercial light-emitting diode (LED with that of a halogen-based light-curing unit by means of dye penetration of a micro hybrid composite resin. The composite resin evaluated was Filtek Z250 (3M Dental. The composite was filled into acrylic moulds that were randomly polymerized for 40 seconds by each of the light-emitting systems: light-emitting diode Ultraled (Dabi Atlante or halogen light Degulux (Degussa Hüls curing units. Immediately after polymerization, each specimen was individually immersed in 1 ml of 2% methylene blue solution at 37°C ± 2°C. After 24 hours, the specimens were rinsed under running distilled water for 1 minute and stored at 37°C ± 2°C at relative humidity for 24 hours. The composite resins were removed from the moulds and individually triturated before being immersed in new test tubes containing 1 ml of absolute alcohol for 24 hours. The solutions were filtered and centrifuged for 3 minutes at 4,000 rpm and the supernatant was used to determine absorbance in a spectrophotometer at 590 nm. To verify the differences between groups polymerized by LED or halogen light t-test was applied. No significant differences were found between composite resins light-cured by LED or halogen light-curing unit (p > 0.05. The commercially LED-based light-curing unit is as effective to polymerize hybrid composite resins as the halogen-based unit.A longevidade clínica das resinas compostas é grandemente influenciada pela qualidade do aparelho fotopolimerizador utilizado. O objetivo deste trabalho foi comparar a eficácia de um aparelho fotopolimerizador de diodos emissores de luz e a de um de luz halógena através do grau de penetração de um corante em uma resina composta micro-híbrida. A resina composta utilizada (Filtek Z250/3M Dental foi inserida em matrizes

  15. Robotic Hand-Assisted Training for Spinal Cord Injury Driven by Myoelectric Pattern Recognition: A Case Report.

    Science.gov (United States)

    Lu, Zhiyuan; Tong, Kai-Yu; Shin, Henry; Stampas, Argyrios; Zhou, Ping

    2017-10-01

    A 51-year-old man with an incomplete C6 spinal cord injury sustained 26 yrs ago attended twenty 2-hr visits over 10 wks for robot-assisted hand training driven by myoelectric pattern recognition. In each visit, his right hand was assisted to perform motions by an exoskeleton robot, while the robot was triggered by his own motion intentions. The hand robot was designed for this study, which can perform six kinds of motions, including hand closing/opening; thumb, index finger, and middle finger closing/opening; and middle, ring, and little fingers closing/opening. After the training, his grip force increased from 13.5 to 19.6 kg, his pinch force remained the same (5.0 kg), his score of Box and Block test increased from 32 to 39, and his score from the Graded Redefined Assessment of Strength, Sensibility, and Prehension test Part 4.B increased from 22 to 24. He accomplished the tasks in the Graded Redefined Assessment of Strength, Sensibility, and Prehension test Part 4.B 28.8% faster on average. The results demonstrate the feasibility and effectiveness of robot-assisted training driven by myoelectric pattern recognition after spinal cord injury.

  16. Staged Hand-Assisted Bilateral Native Nephrectomy for Management of Posttransplant Polyuria in an Adult with Dent’s Disease

    Directory of Open Access Journals (Sweden)

    Rosa M. Montero

    2015-01-01

    Full Text Available Polyuria after kidney transplantation causes graft dysfunction and increased thrombotic risk. We present a case of a polyuric adult with Dent’s disease who underwent staged bilateral native nephrectomies, the first operation before transplant and the second four months after transplant. This led to improved allograft function maintained during four years of follow-up. The retroperitoneal laparoscopic approach was well tolerated and allowed continuation of peritoneal dialysis before transplantation. A staged approach helps regulate fluid balance perioperatively and may be tailored to individual need according to posttransplant urine output. This novel approach should be considered for polyuric patients with tubular dysfunction including Dent’s disease.

  17. Staged Hand-Assisted Bilateral Native Nephrectomy for Management of Posttransplant Polyuria in an Adult with Dent's Disease

    Science.gov (United States)

    Montero, Rosa M.; Olsburgh, Jonathon

    2015-01-01

    Polyuria after kidney transplantation causes graft dysfunction and increased thrombotic risk. We present a case of a polyuric adult with Dent's disease who underwent staged bilateral native nephrectomies, the first operation before transplant and the second four months after transplant. This led to improved allograft function maintained during four years of follow-up. The retroperitoneal laparoscopic approach was well tolerated and allowed continuation of peritoneal dialysis before transplantation. A staged approach helps regulate fluid balance perioperatively and may be tailored to individual need according to posttransplant urine output. This novel approach should be considered for polyuric patients with tubular dysfunction including Dent's disease. PMID:25649339

  18. Sex determination in the Giant fish of Amazon Basin, Arapaima gigas (Osteoglossiformes, Arapaimatidae, using laparoscopy Determinação do sexo no peixe gigante da Bacia Amazônica, Arapaima gigas (Osteoglossiformes, Arapaimatidae, usando laparoscopia

    Directory of Open Access Journals (Sweden)

    Carlos Riedel Porto Carreiro

    2011-01-01

    Full Text Available The Giant of Amazon basin, pirarucu, Arapaima gigas, is the largest scaled freshwater fish in the world. pirarucu cultivation has recently started, driven by the decline in natural populations and high market value. Currently, there are no reliable methods for sexual differentiation in this species other than direct examination of gonads, which requires dissection of specimens. A non-lethal and less invasive method for sexual identification is highly desirable in order to properly group broodstock for mating and offspring production. We utilized laparoscopic examination in anesthetized pirarucu to differentiate between male and female individuals. This method allowed for the observation and differentiation of the reproductive organs within an individual. Our results suggest that laparoscopy is an efficient method for sex differentiation in pirarucu causing minimal stress to the fish.O gigante da bacia amazônica, pirarucu, Arapaima gigas, é o maior peixe de escamas de água doce do mundo. O seu cultivo teve início recentemente motivado pelo declínio de suas populações naturais em virtude do alto valor de sua carne no mercado. Não existem métodos para a diferenciação sexual nesta espécie, o único método é o exame direto das gônadas, o qual requer a dissecação do espécime. Um método para a identifica��ão sexual é altamente desejável, a fim de selecionar grupos de reprodutores para o acasalamento e, portanto, a produção de progênie. A fim de diferenciar reprodutores machos de fêmeas, foi utilizado o exame laparoscópico em animais previamente anestesiados. Este método permitiu a observação dos órgãos abdominais, incluindo gônadas, com grande precisão. Os resultados mostram que a laparoscopia é um método eficiente para a diferenciação do sexo em pirarucu e causam o mínimo de stress para os animais.

  19. Effects of laparoscopy on the cardiorespiratory system of brown brocket deer (Mazama gouazoubira anesthetized with ketamine/ xylazine/ midazolam combination and isoflurane Efeitos da laparoscopia sobre o sistema cardiorrespiratório de veados-catingueiro (Mazama gouazoubira anestesiados com a associação cetamina/xilazina/midazolam e isofluorano

    Directory of Open Access Journals (Sweden)

    Marina Salles Munerato

    2008-11-01

    Full Text Available Laparoscopy is not widely used as a tool to perform assisted reproduction techniques in South American cervids; thus, scarce information in literature is available regarding its effects and appropriate anesthetic protocols to perform it. This study evaluated the effect of laparoscopy on heart rate (HR, respiration rate (RR, saturation of oxyhemoglobin (SpO2 and rectal temperature (RT of six female brown brocket deer (Mazama gouazoubira anesthetized with ketamine (5mg/kg, xylazine (0.3mg/kg, midazolam (0.5mg/kg combination i.v. and isoflurane. Twelve laparoscopies were performed and each animal was used twice with a 40-day interval. After anesthetized, the animals were placed in dorsal recumbency to perform laparoscopy procedure using abdominal CO2 insufflations (14.2 ± 2.39mmHg; M ± SE. The main events of the laparoscopy procedure were divided into three periods: animal without (P1 and with abdominal insufflation (P2 and abdominal insufflation with the hips raised at 45º (P3. As a control, the animals were anesthetized again 40 days after the last laparoscopy, and were maintained in a dorsal recumbency for the same average duration of the previous anesthesia and no laparoscopy procedure was conducted. The period of anesthesia for the controls was also divided into P1, P2, and P3 considering the average duration of these periods in previous laparoscopies performed. Data were analyzed through the (ANOVA variance analysis followed by Tukey test and values at PA laparoscopia ainda é pouco utilizada como ferramenta para técnicas de reprodução assistida em cervídeos sul-americanos, não havendo informações sobre seus efeitos e protocolos anestésicos seguros para sua realização. Objetivaramse avaliar as possíveis alterações na freqüência cardíaca (FC, respiratória (FR, saturação de oxihemoglobina (SpO2 e temperatura retal (TR durante a laparoscopia para visualização dos órgãos reprodutivos de seis fêmeas de veado

  20. Anaesthetic considerations for paediatric laparoscopy | Lasersohn ...

    African Journals Online (AJOL)

    Children, infants and neonates represent an anaesthetic challenge because of age-specific anatomical and physiological issues. Apart from paediatric-specific anaesthetic considerations, the paediatric anaesthetist must understand the implications of laparoscopic surgery, and prevent and react appropriately to changes ...

  1. Take-Home Training in Laparoscopy

    DEFF Research Database (Denmark)

    Thinggaard, Ebbe

    2017-01-01

    this aim, we recruited participants from the intervention arm in our randomised controlled trial. All participants had access to the simulation centre and were given a port-able trainer to train on at home. Participants were asked to use a logbook during training. At the end of the course, they were...

  2. ONSTEP versus laparoscopy for inguinal hernia repair

    DEFF Research Database (Denmark)

    Andresen, Kristoffer; Burcharth, Jakob; Rosenberg, Jacob

    2015-01-01

    repair. Patients are recruited from surgical departments in Denmark and follow-up is one year. In total, 188 patients will be included. DISCUSSION: This protocol describes one of the first randomised clinical trials investigating the ONSTEP technique. To our knowledge, it is the first clinical trial...

  3. Laparoscopy in the management of emphysematous cholecystitis ...

    African Journals Online (AJOL)

    Acute abdomen in a diabetic child may cause diagnostic dilemma. Acalculous emphysematous cholecystitis (EC), although reported among critically ill or diabetic adults, is an uncommon occurrence in the children. It may complicate the presentation due to its varied manifestations; especially when associated with other ...

  4. ROLE OF DIAGNOSTIC LAPAROSCOPY IN OBSCURE ASCITES ...

    African Journals Online (AJOL)

    Scientific Medical Journal. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 12, No 4 (2000) >. Log in or Register to get access to full text downloads.

  5. ONSTEP versus laparoscopy for inguinal hernia repair

    DEFF Research Database (Denmark)

    Andresen, Kristoffer; Burcharth, Jakob; Rosenberg, Jacob

    2015-01-01

    a learning curve of about 50-100 cases and decreases chronic pain, but slightly increases the risk of serious complications compared with open mesh repairs. Therefore, a simpler kind of operation is needed. The ONSTEP technique is a possible solution to this problem. The objective of the present randomised...... comparing the ONSTEP technique with the laparoscopic technique. The results from this study are needed before it can be decided whether the ONSTEP technique should replace the laparoscopic technique in general surgical practice. FUNDING: This study has not received external funding. TRIAL REGISTRATION: NCT...

  6. Laparoscopy of a splenic flexure volvulus

    Directory of Open Access Journals (Sweden)

    Yuichi Sesumi

    2017-09-01

    Full Text Available Splenic flexure volvulus (SFV is a very rare condition that is unlikely to be suspected even when a patient has repeated episodes of abdominal pain and dyschezia. We describe the case of SFV diagnosed and treated laparoscopically in the non-volvulus condition. A 14-year-old boy with no medical history had severe left upper abdominal pain and dyschezia for approximately 1 year. Although contrast enema examination revealed no characteristic findings of volvulus, such as a bird-beak sign, a redundant part of the colon was found to be the site of abdominal pain. We suspected that this part of the colon was the cause of the left upper abdominal pain and performed laparoscopic exploration. The colon at the splenic flexure formed a long loop and was predisposed to twisting; therefore, we performed resection and functional anastomosis of this redundant colon. The postoperative course was uneventful, and the left upper abdominal pain and dyschezia did not recur. Laparoscopic exploration can play a role in patients who are suspected to have recurrent colonic volvulus with radiographic evidence of a redundant portion of the colon, as indicated in our case.

  7. Experience with diagnostic laparoscopy for gynecological indications

    African Journals Online (AJOL)

    2012-02-27

    Feb 27, 2012 ... Nigerian Journal of Clinical Practice • Apr-Jun 2013 • Vol 16 • Issue 2 ... Statistical Analysis Used: Simple percentage method was used. Results: Infertility was the commonest indication for 1627 (98.4%) procedures, while ...

  8. Large complex ovarian cyst managed by laparoscopy

    OpenAIRE

    Dipak J. Limbachiya; Ankit Chaudhari; Grishma P. Agrawal

    2017-01-01

    Complex ovarian cyst with secondary infection is a rare disease that hardly responds to the usual antibiotic treatment. Most of the times, it hampers day to day activities of women. It is commonly known to cause pain and fever. To our surprise, in our case the cyst was large enough to compress the ureter and it was adherent to the surrounding structures. Laparoscopic removal of the cyst was done and specimen was sent for histopathological examination.

  9. Synchronous atypical fibroxanthoma and Bowen’s disease of the head and neck in an otherwise normal patient – a case report and review of literature [Simultanes Auftreten eines atypischen Fibroxanthoms und Plattenepithelkarzinoms im Kopf-Hals-Bereich – Fallbericht und Literaturübersicht

    Directory of Open Access Journals (Sweden)

    Eweida, Ahmad

    2012-03-01

    Full Text Available [english] Although both atypical fibroxanthoma and squamous cell carcinoma arise on top of sun-damaged skin of the elderly, there is no evidence in literature reporting a synchronous presentation of primary lesions of both malignancies in the head and neck regions. We report a case of synchronous atypical fibroxanthoma and squamous cell carcinoma in situ (Bowen’s disease of the head and neck in an otherwise normal old Caucasian male patient. We reviewed the literature for cases of head and neck atypical fibroxanthoma in association with other skin malignancies with an overview over the risk factors and modalities of treatment. We would like to raise the awareness for the concept of multiple synchronous primary malignant lesions and the importance to anticipate and differentiate between different pathologies in order to provide adequate investigations and treatment for the patient. [german] Obwohl sowohl das atypische Fibroxanthom der Haut als auch das Plattenepithelkarzinom bei sonnengeschädigter Haut älterer Menschen gehäuft vorkommen, gibt es in der Literatur keine Beschreibung eines simultanen Auftretens beider Malignome als Primärläsionen im Kopf-Hals-Bereich. Aus diesem Grund möchten wir über einen Fall berichten, bei dem sowohl ein atypisches Fibroxanthom als auch ein Morbus Bowen (als in situ Variante des Plattenepithelkarzinoms im Kopf-Hals-Bereich eines sonst gesunden 74-jährigen männlichen Patienten aufgetreten ist. Auf Grundlage der bestehenden Publikationen von Fällen mit atypischen Fibroxanthomen in Assoziation mit anderen Hautmalignomen, verglichen wir diese mit dem vorliegenden Fall, insbesondere in Hinblick auf die Risikofaktoren und das empfohlene Behandlungsregime. Ein simultanes Auftreten von mehreren primären Hauttumoren verschiedener Entität ist in einigen Fällen möglich und sollte daher insbesondere bei älteren Menschen deutlich häufiger in die Beurteilung und Diagnosestellung mit eingeschlossen werden

  10. Chemical Properties of Dialkyl Halonium Ions (R2Hal+) and Their Neutral Analogues, Methyl Carboranes, CH3-(CHB11Hal11), Where Hal = F, Cl.

    Science.gov (United States)

    Stoyanov, Evgenii S

    2017-04-20

    Chloronium cations in their salts (C n H 2n+1 ) 2 Cl + {CHB 11 Cl 11 - }, with n = 1 to 3 and exceptionally stable carborane anions, are stable at ambient and elevated temperatures. The temperature at which they decompose to carbocations with HCl elimination (below 150 °C) decreases with the increasing n from 1 to 3 because of increasing ionicity of C-Cl bonds in the C-Cl + -C bridge. At room temperature, the salts of cations with n ≥ 4 [starting from t-Bu 2 Cl + or (cyclo-C 5 H 11 ) 2 Cl + ] are unstable and decompose. With decreasing chloronium ion stability, their ability to interact with chloroalkanes to form oligomeric cations increases. It was shown indirectly that unstable salt of fluoronium ions (CH 3 ) 2 F + (CHB 11 F 11 - ) must exist at low temperatures. The proposed (CH 3 ) 2 F + cation is much more reactive than the corresponding chloronium, showing at room temperature chemical properties expected of (CH 3 ) 2 Cl + at elevated temperatures.

  11. Crew-Centered Operations: What HAL 9000 Should Have Been

    Science.gov (United States)

    Korsmeyer, David J.; Clancy, Daniel J.; Crawford, James M.; Drummond, Mark E.

    2005-01-01

    To date, manned space flight has maintained the locus of control for the mission on the ground. Mission control performs tasks such as activity planning, system health management, resource allocation, and astronaut health monitoring. Future exploration missions require the locus of control to shift to on-board due light speed constraints and potential loss of communication. The lunar campaign must begin to utilize a shared control approach to validate and understand the limitations of the technology allowing astronauts to oversee and direct aspects of operation that require timely decision making. Crew-centered Operations require a system-level approach that integrates multiple technologies together to allow a crew-prime concept of operations. This paper will provide an overview of the driving mission requirements, highlighting the limitations of existing approaches to mission operations and identifying the critical technologies necessary to enable a crew-centered mode of operations. The paper will focus on the requirements, trade spaces, and concepts for fulfillment of this capability. The paper will provide a broad overview of relevant technologies including: Activity Planning and Scheduling; System Monitoring; Repair and Recovery; Crew Work Practices.

  12. Nekrotiserende fasciitis i hoved-hals-området

    DEFF Research Database (Denmark)

    Wolf, Henning; Ovesen, Therese

    2008-01-01

    OBJECTIVES: To describe the clinical, microbiological, serological and radiological findings including the results of treatment in a Danish patient population with necrotizing fasciitis (NF) in the head and neck region. MATERIALS AND METHODS: Data were retrieved from patient records with the ICD3...

  13. Head-neck-radiology; Kopf-Hals-Radiologie

    Energy Technology Data Exchange (ETDEWEB)

    Cohnen, Mathias (ed.) [Staedtische Kliniken Neuss Lukaskrankenhaus GmbH (Germany). Institut fuer klinische Radiologie

    2012-11-01

    The book on head-neck-radiology covers the following issues: (1) Methodic fundamentals: conventional radiography, angiography, sonography, computerized tomography, digital volume tomography, NMR imaging, nuclear medicine. (2) Base of the skull. (3) Petrous bone. (4) Pharynx. (5) Paranasal sinuses. (6) Eye socket. (7) Temporomandibular joint. (8) Salivary gland. (9) Oral cavity. (19) Parynx. (11) Neck soft tissue and lymph nodes. (12) Thyroid and parathyroid. (13) Teeth and jaw. (14) Interventions.

  14. 后腹腔镜下输尿管中上段结石治疗临床经验总结(附145例报告)%Clinical Experience Review in the Retroperitoneal Laparoscopy Ureterolithotomy in Treating Upper-Middle Ureteric Calculus(Report of 145 Cases)

    Institute of Scientific and Technical Information of China (English)

    李永响; 乔梁; 刘鲁东; 于淼; 周阳

    2014-01-01

    目的:探讨腹腔镜下输尿管切开取石术的技术要点和临床效果。方法2003年6月~2013年10月,本研究完成腹腔镜下输尿管切开取石145例,左侧79例,右侧66例。输尿管上段结石93例,输尿管中段结石52例。术中应用观察镜直接分离法建立后腹腔,自创单支架管技术放置肾盂D-J管,5-0可吸收线缝合输尿管切口。结果手术均取得成功,无中转开放手术,手术时间为30~180min,平均67min,失血20~50ml,平均35ml,术后住院时间为3~7d,平均3.6d,随访2个月~10年,无输尿管狭窄、尿漏等并发症。结论腹腔镜输尿管切开取石术是治疗输尿管结石有效、可行的微创技术,是输尿管中上段结石手术治疗推荐术式。%Objective To evaluate the key techniques and clinical value of retroperitoneal laparoscopy ureterolithot omy in trea -ting upper ureteric calculus .Methods The clinical data of 145 ureteral calculus patients treated by retroperitoneal laparoscopy ureterolithoto -my in our hospital from june 2003 to October 2013 were analyzed retrospectively ,including 79 cases left,66 cases right,93 cases upper ureter-al calculi,52 cases middle ureteral calculi .The retroperitoneal space was isolated and established through opening the machine of pneumoper -itoneum in the observation of endoscopic ,and single stent technology was used in the Place of D-J stent,5-0 absorbable line suture the inci-sion of ureter.Results All operation were successful,no conversion to open procedure.The operation time was 30~180min(mean,87min). The intraoperative blood loss was 10~50ml(mean,32.5ml).The postoperative length of hospitalization was 3~7 days.During the follow-up period from two months to ten yeas ,ureteric stricture and urinary leakage hadn't been found .Conclusion Retroperitoneal laparoscopy uret-erolithotomy is feasible and safe with the advantages of minimal invasion ,in the upper ureteral calculi surgery

  15. Repercussões respiratórias e hemodinâmicas do pneumoperitônio na lesão do diafragma: estudo experimental Hemodynamic and respiratory changes caused by CO2 laparoscopy in an experimental model of diaphragmatic injury

    Directory of Open Access Journals (Sweden)

    Sílvia Cristine Soldá

    2007-08-01

    Full Text Available OBJETIVO: Analisar as alterações hemodinâmicas e respiratórias secundárias à laparoscopia em modelo experimental de lesão diafragmática. MÉTODOS: Foram utilizados 15 suínos, distribuídos em três grupos com cinco animais cada, assim constituídos: Grupo 1 - Portadores de lesão diafragmática e avaliados sem pneumoperitônio (CLSP; Grupo 2 - Sem lesão diafragmática e avaliados com pneumoperitônio (SLCP; Grupo 3 - Portadores de lesão diafragmática e avaliados com pneumoperitônio (CLCP. Foram avaliadas variáveis gasométricas, hemodinâmicas e respiratórias. RESULTADOS: Houve alterações significantes da pressão média de artéria pulmonar (PAP, pressão de capilar pulmonar (PCP, PAO2, SAO2 e SVO2. CONCLUSÃO: A videolaparoscopia na presença de lesão do diafragma não acarreta alterações do débito cardíaco e pode ser realizada com segurança, desde que a pressão de pneumoperitônio não ultrapasse valores de 15 mmHg.OBJECTIVE: The objective of this study was to analyze the hemodynamic and respiratory changes caused by CO2 laparoscopy in an experimental model of diaphragmatic injury. METHODS: Fifteen animals chosen at random were submitted to diaphragmatic injury by means of CO2 laparoscopy. Evaluation consisted of drawing blood samples to analyze blood gases, as well as the hemodynamic and respiratory variables. RESULTS: Alterations occurred in APA, CPP, PAO2, ASO2, VSO2. CONCLUSION: We concluded that videolaparoscopy with pneumoperitoneum pressure under 15mmHg is a safe procedure in patients with diaphragmatic injuries because this pressure level does not cause hemodynamic changes, such as decrease of the cardiac output. [Rev Assoc Med Bras 2007; 53(4: 294-9

  16. Achados de laparoscopias ginecológicas realizadas em mulheres com dificuldade reprodutiva atendidas em um hospital-escola: série de casos Findings of gynecological laparoscopies in women with reproductive problems in a teaching hospital: a case series

    Directory of Open Access Journals (Sweden)

    Maria da Conceição Farias Souto Maior

    2007-06-01

    Full Text Available OBJETIVO: descrever as características das videolaparoscopias ginecológicas realizadas em pacientes com dificuldade reprodutiva atendidas em um hospital-escola no Recife, Pernambuco. MÉTODOS: foi realizado um estudo descritivo, de base hospitalar, do tipo série de casos. As informações foram obtidas a partir dos relatórios cirúrgicos das videolaparoscopias realizadas no Instituto Materno Infantil Professor Fernando Figueira, em Recife, entre janeiro de 2000 e dezembro de 2004. O critério de inclusão foi infertilidade ou estudo pré-recanalização como indicação cirúrgica. Para análise, utilizou-se o programa estatístico Epi-Info 3.3.2. Criaram-se tabelas de medidas de tendência central e de dispersão para as variáveis quantitativas e distribuição de freqüência para as variáveis categóricas. RESULTADOS: foram analisados 462 laudos de laparoscopias, dos quais 295 (63,8% tiveram como indicação a infertilidade ou o estudo para recanalização tubária. A média de idade de ambos os grupos foi de 30 a 34 anos. Nos casos de infertilidade, os achados mais freqüentes foram aderências (60,6%, obstrução tubária (40,9% e endometriose (36,1%. Nos casos de estudo da condição tubária pré-recanalização, das 87 pacientes analisadas, 55,2% apresentavam uma ou ambas as trompas inadequadas. Dentre estas, em 52,1% foi diagnosticada amputação tubária. Os procedimentos mais realizados foram adesiólise (34,2%, biópsias (21%, tratamento da endometriose (10,8% e salpingostomia (8,1%. CONCLUSÃO: a videolaparoscopia apresenta-se como importante instrumento na pesquisa e tratamento dos casos de dificuldade reprodutiva principalmente em serviços que não dispõem de técnicas avançadas de reprodução humana.PURPOSE: to identify the main characteristics of the diagnostic and surgical gynecological laparoscopies carried out in patients with reproductive difficulties at a teaching hospital in Recife, from 2000 and 2004. METHODS: a

  17. Dentine bond strength of a composite resin polymerized with conventional light and argon laser Resistência de união à dentina de resina composta polimerizada com luz halógena e laser de argônio

    Directory of Open Access Journals (Sweden)

    Patricia Ramos Lloret

    2004-09-01

    Full Text Available The use of argon laser (488 nm has been suggested as a new alternative for polymerizing adhesive materials. This study aimed to evaluate the tensile bond strength of a microfilled composite (A110, 3M inserted by incremental technique (3 increments of 1 mm and by single increment (3 mm polymerized by argon laser for 10, 20 and 30 seconds and halogen light for 40 seconds. Eighty (8 groups of 10 teeth freshly extracted bovine teeth were stored in a freezer in distilled water for one week. The crowns were cross-sectioned from the roots. Pulpectomy was performed and the pulp chambers were sealed with wax. The buccal surfaces of the teeth were ground with wet sandpaper (grains: 120, 400, and 600 to expose the surface dentin, and the teeth were then included in acrylic resin. A metal device was used to fix each sample and a black propylene matrix25 (3 mm high with an internal millimetric delimitation was used to insert the material according to the groups studied. The polymerization intervals were of 10, 20 and 30 seconds for the laser polymerization and 40 seconds for the conventional polymerization. Tensile tests were performed by a Universal Testing Machine 4442 (Instron at a speed of 0.5 mm/min and 500 N load. According to the methodology used, the incremental technique increased bond strength values. There was no difference between the studied polymerization techniques when resin was filled in 3 increments.O uso do laser de argônio (488 nm tem sido sugerido como uma nova alternativa para polimerização de materiais adesivos. Este estudo tem o objetivo de avaliar a resistência adesiva de uma resina composta microparticulada (A110, 3M inserida pela técnica incremental (3 incrementos de 1 mm e de incremento único (3 mm polimerizada com laser de argônio por 10, 20 e 30 segundos e com luz halógena por 40 segundos. Oitenta (8 grupos com 10 dentes dentes bovinos recém-extraídos foram armazenados em geladeira, em água destilada, por uma semana

  18. Efectividad del adhesivo tisular Tisuacryl® para el cierre de heridas cutáneas en cirugía laparoscópica Effectiveness of the Tisuacryl® as tissue adhesive for closure of cutaneous wounds in laparoscopy surgery

    Directory of Open Access Journals (Sweden)

    Rosalba Roque González

    2011-06-01

    Full Text Available INTRODUCCIÓN. Uno de los beneficios de la utilización de procedimientos laparoscópicos en cirugía es reducir la morbilidad relacionada con el traumatismo quirúrgico. Es conocido que el empleo del adhesivo tisular Tisuacryl® en el cierre de heridas cutáneas favorece la hemostasia, la recuperación rápida del tejido y la disminución del edema posquirúrgico, y evita complicaciones como infección y reacción del tejido a un cuerpo extraño. Fue objetivo de esta investigación evaluar la efectividad y seguridad de la utilización del Tisuacryl® para la síntesis de los puertos de entrada en pacientes intervenidos por cirugías mínimamente invasivas, sin necesidad de aplicar sutura. MÉTODOS. Se aplicó el adhesivo tisular a 100 pacientes que acudieron al Centro Nacional de Cirugía de Mínimo Acceso para realizarse diferentes procedimientos quirúrgicos. Como variables para evaluar la efectividad y seguridad del tratamiento se tomaron la dehiscencia de la herida, aparición de infección, tiempo de síntesis de la herida y estética de la cicatriz. Los pacientes se evaluaron en el posoperatorio inmediato y en consulta externa a los 7 y 21 días de la cirugía. RESULTADOS. Se lograron excelentes resultados en cuanto al afrontamiento y la estética de las heridas. Además, los pacientes no refirieron molestias ocasionadas por el material, ni se produjeron casos de infección. CONCLUSIONES. Los resultados de la investigación realizada demuestran que el Tisuacryl® puede utilizarse con alta efectividad para el cierre de las heridas de 5 mm y 10 mm en la cirugía laparoscópica, sustituyendo a las suturas.INTRODUCTION. One of the more beneficial uses of laparoscopy procedures in surgery is to decrease the morbidity related to surgical trauma. It is known that the use of the Tisuacryl® tissue adhesive for closure of cutaneous wounds favors the hemostasis, a fast tissue recovery and decrease of postsurgical edema avoiding complications

  19. Multiple huge epiphrenic esophageal diverticula with motility disease treated with video-assisted thoracoscopic and hand-assisted laparoscopic esophagectomy: a case report

    OpenAIRE

    Taniguchi, Yoshiki; Takahashi, Tsuyoshi; Nakajima, Kiyokazu; Higashi, Shigeyoshi; Tanaka, Koji; Miyazaki, Yasuhiro; Makino, Tomoki; Kurokawa, Yukinori; Yamasaki, Makoto; Takiguchi, Shuji; Mori, Masaki; Doki, Yuichiro

    2017-01-01

    Background Epiphrenic esophageal diverticulum is a rare condition that is often associated with a concomitant esophageal motor disorder. Some patients have the chief complaints of swallowing difficulty and gastroesophageal reflux; traditionally, such diverticula have been resected via right thoracotomy. Here, we describe a case with huge multiple epiphrenic diverticula with motility disorder, which were successfully resected using a video-assisted thoracic and laparoscopic procedure. Case pre...

  20. Systematic review of laparoscopic surgery in low- and middle-income countries: benefits, challenges, and strategies.

    Science.gov (United States)

    Chao, Tiffany E; Mandigo, Morgan; Opoku-Anane, Jessica; Maine, Rebecca

    2016-01-01

    Laparoscopy may prove feasible to address surgical needs in limited-resource settings. However, no aggregate data exist regarding the role of laparoscopy in low- and middle-income countries (LMICs). This study was designed to describe the issues facing laparoscopy in LMICs and to aggregate reported solutions. A search was conducted using Medline, African Index Medicus, the Directory of Open Access Journals, and the LILACS/BIREME/SCIELO database. Included studies were in English, published after 1992, and reported safety, cost, or outcomes of laparoscopy in LMICs. Studies pertaining to arthroscopy, ENT, flexible endoscopy, hysteroscopy, cystoscopy, computer-assisted surgery, pediatrics, transplantation, and bariatrics were excluded. Qualitative synthesis was performed by extracting results that fell into three categories: advantages of, challenges to, and adaptations made to implement laparoscopy in LMICs. PRISMA guidelines for systematic reviews were followed. A total of 1101 abstracts were reviewed, and 58 articles were included describing laparoscopy in 25 LMICs. Laparoscopy is particularly advantageous in LMICs, where there is often poor sanitation, limited diagnostic imaging, fewer hospital beds, higher rates of hemorrhage, rising rates of trauma, and single income households. Lack of trained personnel and equipment were frequently cited challenges. Adaptive strategies included mechanical insufflation with room air, syringe suction, homemade endoloops, hand-assisted techniques, extracorporeal knot tying, innovative use of cheaper instruments, and reuse of disposable instruments. Inexpensive laboratory-based trainers and telemedicine are effective for training. LMICs face many surgical challenges that require innovation. Laparoscopic surgery may be safe, effective, feasible, and cost-effective in LMICs, although it often remains limited in its accessibility, acceptability, and quality. This study may not capture articles written in languages other than

  1. prevalence de l\\' endometriose en laparoscopie chez les femmes ...

    African Journals Online (AJOL)

    Married women constituted the majority of our sample with a relative majority of 64.98% compared to those unmarried. We noted that 72.94% of our patients presented with secondary infertility. Endometriosis was found in 13.53% of patients operated upon. The most frequent site of endometriotic implantation was ovarian in ...

  2. Gynaecological laparoscopy courses in the United Arab Emirates

    African Journals Online (AJOL)

    EB

    gynaecological procedures having advantages over open surgery. Objective: To report our ... The courses were highly valued having an overall average rating of 3.8 out of 4. .... Likert scale (1 = poor, 2 = fair, 3= good, 4 = excellent). In addition ...

  3. Optimizing Working Space in Laparoscopy: Studies in a porcine model

    NARCIS (Netherlands)

    J. Vlot (John)

    2014-01-01

    markdownabstract__Abstract__ Adequate working space is essential for safe and effective laparoscopic surgery. However, the factors that determine working space have not been sufficiently studied. Working space can be very limited, especially in children. A literature review was undertaken to

  4. REVEAL: Reconstruction, Enhancement, Visualization, and Ergonomic Assessment for Laparoscopy

    Science.gov (United States)

    2008-08-01

    2007) Ergonomic risk of assisting in minimally invasive surgery, Annual conference of SAGES 2008 Park AE, Meenaghan N, Lee TH, Seagull FJ, Lee G...of NOTES techniques: a study of physical and mental workload, body movement and posture Adrian Park, Gyusung Lee, Carlos Godinez, F Jacob Seagull

  5. Colonoscopic tattoo dye spillage mimics endometriosis on laparoscopy.

    Science.gov (United States)

    Stemmer, Shlomo M; Shurshalina, Anna

    2014-01-01

    Rare adverse effects of India ink injection spillage during colonoscopy have been reported. We present a case report in which prior colonoscopic India ink tattooing was found to mimic intraperitoneal endometriosis in a 48 year-old woman undergoing laparoscopic sterilization. Multiple black lesions suspicious for endometriosis involving the anterior and posterior cul-de-sac, left ovary, and omentum were found. A pathological assessment showed peritoneal tissue with focal dark pigment associated with mild chronic inflammation and deposition of tattoo pigment; there was no evidence of endometriosis in the specimens. Surgical recognition of tattoo ink spillage in the peritoneum is very important to prevent misinterpretation of peritoneal findings. Copyright © 2014 AAGL. Published by Elsevier Inc. All rights reserved.

  6. Optimising abdominal space with deep neuromuscular blockade in gynaecologic laparoscopy

    DEFF Research Database (Denmark)

    Madsen, Matias Vested; Gätke, M R; Springborg, H H

    2015-01-01

    was measured during deep NMB and without NMB at pneumoperitoneum 8 and 12 mmHg both. Additionally, we assessed surgical conditions while suturing the abdominal fascia using a 4-point subjective rating scale. Deep NMB was established with rocuronium and reversed with sugammadex. RESULTS: At 12 mm...

  7. Laser visual guidance versus two-dimensional vision in laparoscopy

    DEFF Research Database (Denmark)

    Sørensen, Stine Maya Dreier; Mahmood, Oria; Konge, Lars

    2017-01-01

    skills, quality of task performance, and cognitive workload. METHODS: We designed a randomized controlled trial following the CONSORT statement. Thirty-two surgical novices completed the Training and Assessment of Basic Laparoscopic Techniques (TABLT) test. The first attempt allowed participants...... and movements used were less in the LVG group: Mean time used in the LVG group was 1288 s (95 % CI 1188-1388) versus 1354 s (95 % CI 1190-1518) (p = 0.45); mean angular path length used in the LVG group was 24,049° (95 % CI 20,761-27,336) versus 26,014° (95 % CI 22,059-29,970) (p = 0.42); mean path length...

  8. Laparoscopy-assisted Robotic Myomectomy Using the DA Vinci System

    Directory of Open Access Journals (Sweden)

    Shih-Peng Mao

    2007-06-01

    Conclusion: Minimally invasive surgery is the trend of the future. Robot-assisted laparoscopic surgery is a new technique for myomectomy. This robotic system provides a three-dimensional operative field and an easy-to-use control panel, which may be of great help when applying the suturing techniques and may shorten the learning curve. More experience with and long-term follow-up of robotic surgery may be warranted to further validate the role the robot-assisted approach in gynecologic surgery.

  9. Head-controlled laparoscopy : experiment, prototype, and preliminary results

    NARCIS (Netherlands)

    Voorhorst, F.A.; Meijer, D.W.; Overbeeke, C.J.

    1999-01-01

    Depth perception is closely linked to the ability to explore. Previously described laboratory experiments showed the advantage of linking the motions of the laparoscope directly to the head movements of the surgeon. Additionally, it was found that the laparoscope should be mechanically supported

  10. Intestinal obstruction caused by omphalomesenteric duct remnant: usefulness of laparoscopy.

    Science.gov (United States)

    Bueno Lledó, J; Serralta Serra, A; Planeéis Roig, M; Dobón Giménez, F; Ibáñez Palacín, F; Rodero Rodero, R

    2003-10-01

    The anomalies related to omphalomesenteric duct remnant constitute an uncommon cause of intestinal obstruction, of which Meckel"s diverticulum and its variants represent the most important clinical presentation. In most cases they are asymptomatic and usually affect young patients. When symptomatic, they usually present episodes of gastrointestinal bleeding or acute abdomen syndromes caused by strangulation of intestinal loops as a result of fibrous intraabdominal remnants or inflammation produced by the diverticulum. In most cases, the unexpected presence of these alterations makes intraoperative diagnosis necessary. Treatment is surgical and consists in exeresis of the diverticulum or the fibrous band causing the clinical picture. We report two cases of persistence of the vitelline duct resolved by laparoscopic approach.

  11. Experience with a Spanish-language laparoscopy website.

    Science.gov (United States)

    Moreno-Sanz, Carlos; Seoane-González, Jose B

    2006-02-01

    Although there are no clearly defined electronic tools for continuing medical education (CME), new information technologies offer a basic platform for presenting training content on the internet. Due to the shortage of websites about minimally invasive surgery in the Spanish language, we set up a topical website in Spanish. This study considers the experience with the website between April 2001 and January 2005. To study the activity of the website, the registry information was analyzed descriptively using the log files of the server. To study the characteristics of the users, we searched the database of registered users. We found a total of 107,941 visits to our website and a total of 624,895 page downloads. Most visits to the site were made from Spanish-speaking countries. The most frequent professional profile of the registered users was that of general surgeon. The development, implementation, and evaluation of Spanish-language CME initiatives over the internet is promising but presents challenges.

  12. Objective assessment of surgical competence in gynaecological laparoscopy

    DEFF Research Database (Denmark)

    Larsen, C R; Grantcharov, Teodor; Schouenborg, L

    2008-01-01

    The purpose of this study was to develop a global- and a procedure-specific rating scale based on a well-validated generic model (objective structured assessment of technical skills) for assessment of technical skills in laparoscopic gynaecology. Furthermore, we aimed to investigate the construct...

  13. An integrated port camera and display system for laparoscopy.

    Science.gov (United States)

    Terry, Benjamin S; Ruppert, Austin D; Steinhaus, Kristen R; Schoen, Jonathan A; Rentschler, Mark E

    2010-05-01

    In this paper, we built and tested the port camera, a novel, inexpensive, portable, and battery-powered laparoscopic tool that integrates the components of a vision system with a cannula port. This new device 1) minimizes the invasiveness of laparoscopic surgery by combining a camera port and tool port; 2) reduces the cost of laparoscopic vision systems by integrating an inexpensive CMOS sensor and LED light source; and 3) enhances laparoscopic surgical procedures by mechanically coupling the camera, tool port, and liquid crystal display (LCD) screen to provide an on-patient visual display. The port camera video system was compared to two laparoscopic video systems: a standard resolution unit from Karl Storz (model 22220130) and a high definition unit from Stryker (model 1188HD). Brightness, contrast, hue, colorfulness, and sharpness were compared. The port camera video is superior to the Storz scope and approximately equivalent to the Stryker scope. An ex vivo study was conducted to measure the operative performance of the port camera. The results suggest that simulated tissue identification and biopsy acquisition with the port camera is as efficient as with a traditional laparoscopic system. The port camera was successfully used by a laparoscopic surgeon for exploratory surgery and liver biopsy during a porcine surgery, demonstrating initial surgical feasibility.

  14. Comparative studies of energy sources in gynecologic laparoscopy.

    Science.gov (United States)

    Law, Kenneth S K; Lyons, Stephen D

    2013-01-01

    Energy sources incorporating "vessel sealing" capabilities are being increasingly used in gynecologic laparoscopic surgery although conventional monopolar and bipolar electrosurgery remain popular. The preference for one device over another is based on a combination of factors, including the surgeon's subjective experience, availability, and cost. Although comparative clinical studies and meta-analyses of laparoscopic energy sources have reported small but statistically significant differences in volumes of blood loss, the clinical significance of such small volumes is questionable. The overall usefulness of the various energy sources available will depend on a number of factors including vessel burst pressure and seal time, lateral thermal spread, and smoke production. Animal studies and laboratory-based trials are useful in providing a controlled environment to investigate such parameters. At present, there is insufficient evidence to support the use of one energy source over another. Copyright © 2013 AAGL. All rights reserved.

  15. Intestinal Malrotation and Volvulus in Neonates: Laparoscopy Versus Open Laparotomy.

    Science.gov (United States)

    Ferrero, Luisa; Ahmed, Yosra Ben; Philippe, Paul; Reinberg, Olivier; Lacreuse, Isabelle; Schneider, Anne; Moog, Raphael; Gomes-Ferreira, Cindy; Becmeur, François

    2017-03-01

    Intestinal malrotations with midgut volvulus are surgical emergencies that can lead to life-threatening intestinal necrosis. This study evaluates the feasibility and the outcomes of laparoscopic treatment of midgut volvulus compared with classic open Ladd's procedure in neonates. The medical records of all neonates with diagnosis of malrotation and volvulus, who underwent surgery between January 1993 and January 2014, were reviewed. We considered the group of neonates laparoscopically treated (Group A, n = 20) and we compared it with an equal number of neonates treated with the classical open Ladd's procedure (Group B, n = 20). The median age at surgery was 8.4 days and the mean weight was 3.340 kg. The suspicion of volvulus was documented by plain abdominal radiograph, upper gastrointestinal contrast study, and/or ultrasound scanning of the mesenteric vessels. All the patients were treated according to the Ladd's procedure. Conversion to an open procedure was necessary in 25% of the patients. The mean operative time was 80 minutes (28-190 minutes) in Group A and 61 minutes (40-130 minutes) in Group B (P = .04). The median time to full diet (P = .02) and hospital stay (P = .04) was better in Group A. Rehospitalization because of recurrence of occlusive symptoms occurred in 30% of patients in Group A (n = 6) and in 40% of patients in Group B (n = 8). Among these, all the 6 patients of Group A underwent redo surgery for additional division of Ladd's bands or debridement; instead in Group B, 4 of 8 patients underwent open redo surgery. Laparoscopic exploration is the procedure of choice in case of suspicion of intestinal malrotation and volvulus. Laparoscopic treatment is feasible and safe even in neonatal age without additional risks compared with classical open Ladd's procedure.

  16. Single-port laparoscopy : an assessment of safety and feasibility

    NARCIS (Netherlands)

    van der Linden, Yoen T. Kim

    2017-01-01

    Nowadays laparoscopic surgery is the standard procedure for many abdominal diseases. Compared with open surgery, laparoscopic surgery offers several advantages, such as reduction of postoperative pain, faster postoperative recovery and shorter admission times to the hospital. The continuous drive to

  17. Laparoscopy in private practice | Mayat | South African Medical ...

    African Journals Online (AJOL)

    (a) The knee-chest position in which the patient is placed and held by a Clover's clutch is not favoured by the anaesthetist, because of the respiratory embarrassment which may occur. Patients often complain of pain along the sites where the shoulder straps are plaoed. When the procedure is prolonged, puffiness of the ...

  18. Designing a Standardized Laparoscopy Curriculum for Gynecology Residents

    DEFF Research Database (Denmark)

    Shore, Eliane M; Lefebvre, Guylaine G; Husslein, Heinrich

    2015-01-01

    surgery, and asked 39 experts in gynecologic education to rate the items on a Likert scale (1-5) for inclusion in the curriculum. Consensus was predefined as Cronbach α of ≥0.80. We then conducted another Delphi survey with 9 experienced users of laparoscopic virtual reality simulators to delineate...... of the curriculum Delphi, and after 2 rounds (Cronbach α=0.80) in the virtual reality curriculum Delphi. Consensus was reached for cognitive, technical, and nontechnical skills as well as for 6 virtual reality tasks. Median time and economy of movement scores defined benchmarks for all tasks. CONCLUSIONS...

  19. Vahdet-i Vücûd Düşüncesini Açıklamada Halı Sembolizmi ve Muhyiddin-i Rûmî’nin Temsîl-i Kālîçe İsimli Risâlesi / The Symbolism of the Rug (Qalicha to Expound the Doctrine of the Unity of Being and Muhyiddin al-Rumi's treatise "Tamthil Qalicha"

    Directory of Open Access Journals (Sweden)

    Hür Mahmut Yücer

    2017-06-01

    ölgesinde benzer tarzda açıklanmaya çalışılmış ve üzerine şerhler yazılmıştır. Anlatının daha iyi kavranabilmesi için çekirdek-ağaç, nokta-harf, buhar-buz, ayna-hayal (gölge gibi bir takım sembolik anlatım tarzları tercih edilmiştir. Bu çalışmanın konusunu teşkil eden halı sembolizmi/metaforu üzerine farklı şekillerde dikkat çekilmiş olsa da bu güne kadar herhangi bir çalışma yapılmamıştır. Bu konuda Muhyî’nin Temsîl-i Kālîçe isimli risalesi oldukça ilgi çekicidir. Çalışmamızın başında halı sembolizmini açıklamaya çalışacağız. Daha sonra Temsîl-i Kālîçe’nin günümüz Türkçesi ile yazımını vereceğiz.

  20. Archeas halófilas como causa de alteraciones en tripas bovinas saladas.

    OpenAIRE

    BERTACCHI PEPE, MÓNICA MARÍA

    2016-01-01

    [EN] The main objective of this study was the analysis, description, characterization and impact of red-orange colorations observed in salted bovine casings (intestines), ready for marketing. To achieve this, over the course of three years, an investigation was conducted in two slaughterhouses to assess the industrial process of obtaining cattle intestines (primary process); and three tripe shops to study the secondary process of obtaining salted bovine casings. A salt processing establishmen...

  1. HAL/SM system functional design specification. [systems analysis and design analysis of central processing units

    Science.gov (United States)

    Ross, C.; Williams, G. P. W., Jr.

    1975-01-01

    The functional design of a preprocessor, and subsystems is described. A structure chart and a data flow diagram are included for each subsystem. Also a group of intermodule interface definitions (one definition per module) is included immediately following the structure chart and data flow for a particular subsystem. Each of these intermodule interface definitions consists of the identification of the module, the function the module is to perform, the identification and definition of parameter interfaces to the module, and any design notes associated with the module. Also described are compilers and computer libraries.

  2. HAL/SM language specification. [programming languages and computer programming for space shuttles

    Science.gov (United States)

    Williams, G. P. W., Jr.; Ross, C.

    1975-01-01

    A programming language is presented for the flight software of the NASA Space Shuttle program. It is intended to satisfy virtually all of the flight software requirements of the space shuttle. To achieve this, it incorporates a wide range of features, including applications-oriented data types and organizations, real time control mechanisms, and constructs for systems programming tasks. It is a higher order language designed to allow programmers, analysts, and engineers to communicate with the computer in a form approximating natural mathematical expression. Parts of the English language are combined with standard notation to provide a tool that readily encourages programming without demanding computer hardware expertise. Block diagrams and flow charts are included. The semantics of the language is discussed.

  3. A Prediction Model to Help with the Assessment of Adenopathy in Lung Cancer: HAL.

    Science.gov (United States)

    O'Connell, Oisin J; Almeida, Francisco A; Simoff, Michael J; Yarmus, Lonny; Lazarus, Ray; Young, Benjamin; Chen, Yu; Semaan, Roy; Saettele, Timothy M; Cicenia, Joseph; Bedi, Harmeet; Kliment, Corrine; Li, Liang; Sethi, Sonali; Diaz-Mendoza, Javier; Feller-Kopman, David; Song, Juhee; Gildea, Thomas; Lee, Hans; Grosu, Horiana B; Machuzak, Michael; Rodriguez-Vial, Macarena; Eapen, George A; Jimenez, Carlos A; Casal, Roberto F; Ost, David E

    2017-06-15

    Estimating the probability of finding N2 or N3 (prN2/3) malignant nodal disease on endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) in patients with non-small cell lung cancer (NSCLC) can facilitate the selection of subsequent management strategies. To develop a clinical prediction model for estimating the prN2/3. We used the AQuIRE (American College of Chest Physicians Quality Improvement Registry, Evaluation, and Education) registry to identify patients with NSCLC with clinical radiographic stage T1-3, N0-3, M0 disease that had EBUS-TBNA for staging. The dependent variable was the presence of N2 or N3 disease (vs. N0 or N1) as assessed by EBUS-TBNA. Univariate followed by multivariable logistic regression analysis was used to develop a parsimonious clinical prediction model to estimate prN2/3. External validation was performed using data from three other hospitals. The model derivation cohort (n = 633) had a 25% prevalence of malignant N2 or N3 disease. Younger age, central location, adenocarcinoma histology, and higher positron emission tomography-computed tomography N stage were associated with a higher prN2/3. Area under the receiver operating characteristic curve was 0.85 (95% confidence interval, 0.82-0.89), model fit was acceptable (Hosmer-Lemeshow, P = 0.62; Brier score, 0.125). We externally validated the model in 722 patients. Area under the receiver operating characteristic curve was 0.88 (95% confidence interval, 0.85-0.90). Calibration using the general calibration model method resulted in acceptable goodness of fit (Hosmer-Lemeshow test, P = 0.54; Brier score, 0.132). Our prediction rule can be used to estimate prN2/3 in patients with NSCLC. The model has the potential to facilitate clinical decision making in the staging of NSCLC.

  4. Hoved-hals-kræft-patienters oplevelse af accelererede patientforløb

    DEFF Research Database (Denmark)

    Junge, Anne Gram; Risør, Mette Bech; Toustrup, Kasper

    2010-01-01

    Introduktion: I løbet af 2007 lykkedes det Århus Sygehus at accelerere patientforløbene for hovedhalskræftpatienter, så det mediane forløb fra henvisning til behandlingsstart blev halveret til 29 dage. Denne artikel bygger på resultaterne af et kvalitativt studie, som blev iværksat for at undersø...

  5. Phonons and their dispersion in model ferroelastics Hg2Hal2

    Science.gov (United States)

    Roginskii, E. M.; Kvasov, A. A.; Markov, Yu. F.; Smirnov, M. B.

    2012-05-01

    Dispersion relations of the acoustic and optical phonon frequencies have been calculated and plotted, and the density of states of the phonon spectrum of Hg2Cl2 and Hg2Br2 crystals has been derived. The effect of hydrostatic pressure on the frequencies of acoustic and optical phonons and their dispersion has been theoretically analyzed. It has been found that an increase in the pressure leads to a strong softening of the slowest acoustic TA branch (the soft mode) at the X point of the Brillouin zone boundary, which is consistent with the phenomenological Landau theory and correlates with experiment.

  6. Prognostiske faktorer af betydning for den recidivfrie overlevelse efter kirurgisk behandling af hoved-hals-melanom

    DEFF Research Database (Denmark)

    Andersson, A P; Gottlieb, J; Søndergaard, K

    1993-01-01

    The clinico-pathological and therapeutic data of 512 patients with clinical stage I invasive head and neck melanoma of the skin were re-evaluated. There were 287 females and 225 males. The median age at primary surgery was 65 years, range 18 to 96 years. The median observation period was 5 years,...

  7. Antimicrobial peptide HAL-2/39 as a possible replacement of antibiotics in bone cement

    Czech Academy of Sciences Publication Activity Database

    Volejníková, Andrea; Nešuta, Ondřej; Čeřovský, Václav

    2017-01-01

    Roč. 15, č. 1 (2017), s. 43-44 ISSN 2336-7202. [Mezioborové setkání mladých biologů, biochemiků a chemiků /17./. 30.05.2017-01.06.2017, Milovy] R&D Projects: GA MZd(CZ) NV16-27726A Institutional support: RVO:61388963 Keywords : antimicrobial peptides * bacterial resistance Subject RIV: EE - Microbiology, Virology

  8. Human-rating Automated and Robotic Systems - (How HAL Can Work Safely with Astronauts)

    Science.gov (United States)

    Baroff, Lynn; Dischinger, Charlie; Fitts, David

    2009-01-01

    Long duration human space missions, as planned in the Vision for Space Exploration, will not be possible without applying unprecedented levels of automation to support the human endeavors. The automated and robotic systems must carry the load of routine housekeeping for the new generation of explorers, as well as assist their exploration science and engineering work with new precision. Fortunately, the state of automated and robotic systems is sophisticated and sturdy enough to do this work - but the systems themselves have never been human-rated as all other NASA physical systems used in human space flight have. Our intent in this paper is to provide perspective on requirements and architecture for the interfaces and interactions between human beings and the astonishing array of automated systems; and the approach we believe necessary to create human-rated systems and implement them in the space program. We will explain our proposed standard structure for automation and robotic systems, and the process by which we will develop and implement that standard as an addition to NASA s Human Rating requirements. Our work here is based on real experience with both human system and robotic system designs; for surface operations as well as for in-flight monitoring and control; and on the necessities we have discovered for human-systems integration in NASA's Constellation program. We hope this will be an invitation to dialog and to consideration of a new issue facing new generations of explorers and their outfitters.

  9. Prognostiske faktorer af betydning for den recidivfrie overlevelse efter kirurgisk behandling af hoved-hals-melanom

    DEFF Research Database (Denmark)

    Andersson, A P; Gottlieb, J; Søndergaard, K

    1993-01-01

    The clinico-pathological and therapeutic data of 512 patients with clinical stage I invasive head and neck melanoma of the skin were re-evaluated. There were 287 females and 225 males. The median age at primary surgery was 65 years, range 18 to 96 years. The median observation period was 5 years,...... adjusting for the independent risk factors......., range 1 month to 25 years. Sex, age, ulcerated tumor and tumor thickness were found by Cox multivariate regression analysis to act as independent prognostic factors for recurrence-free survival. In addition, size of the excision margin was found of no significance for survival without relapse when...

  10. Een pijnlijke hals door acute suppuratieve thyreoïditis veroorzaakt door Salmonella

    NARCIS (Netherlands)

    van Bon, A. C.; Krudop, W.; van Eeden, S.; Schreuder, M. C. J.; Nieveen van Dijkum, E. J. M.; Fliers, E.; Wiersinga, W. M.

    2008-01-01

    A 53-year-old woman presented with fever accompanied by chills and an extremely painful swelling of her right thyroid lobe. She was initially diagnosed as having subacute thyroiditis, but after 14 days her disease appeared to be caused by a destructive suppurative thyroiditis due to Salmonella group

  11. Eficácia do propofol e da associação de propofol e dexametasona no controle de náusea e vômito no pós-operatório de laparoscopia ginecológica Eficacia del propofol y de la asociación de propofol y dexametasona en el control de náusea y vómito en el pós-operatorio de laparoscopia ginecológica Efficacy of propofol and propofol plus dexamethasone in controlling postoperative nausea and vomiting of gynecologic laparoscopy

    Directory of Open Access Journals (Sweden)

    Eliana Marisa Ganem

    2002-07-01

    ós-operatorio. Este estudio tuvo por finalidad comparar la eficacia del propofol aisladamente o en asociación con la dexametasona en la prevención de náusea y vómito en pacientes sometidas a laparoscopia ginecológica. MÉTODO: Participaron del estudio 40 pacientes, estado físico ASA I y II, con edades entre 18 y 46 años, sin quejas gástricas previas, sometidas a laparoscopia para diagnóstico o cirugía. Las pacientes fueron divididas en 2 grupos: el grupo 1 recibió (solución fisiológica 2 ml y el grupo 2 dexametasona (8 mg, por vía venosa antes de la inducción de la anestesia. Todas las pacientes recibieron midazolam (7,5 mg por vía oral como medicación pré-anestésica, sufentanil (0,5 µg.kg-1, propofol en infusión continua para inducción y manutención de la anestesia (BIS - 60 y N2O/O2 en fracción inspirada de O2 a 40% y atracúrio (0,5 mg.kg-1 como bloqueador neuromuscular. La analgesia pós-operatoria fue realizada con cetoprofeno (100 mg y buscopan compuesto ®. Las pacientes fueron evaluadas en la sala de recuperación pós-anestésica (SRPA y en la enfermaría 1 h, 2 h 3 h y 12 h después del alta de la SRPA. RESULTADOS: Ambos grupos fueron idénticos cuanto a los datos antropométricos y a la duración de la cirugía y de la anestesia. En el grupo 1 (n=20 una paciente presentó náusea en la SRPA y en la enfermaría y tres pacientes vomitaron en la enfermaría. En el grupo 2 (n=20 ninguna paciente presentó náusea o vómito durante el período de observación clínica, resultados estadísticamente no significativos. CONCLUSIONES: El propofol aisladamente o asociado a la dexametasona fue eficaz en la prevención de náusea y vómito en el pós-operatorio de pacientes sometidas a laparoscopia ginecológica.BACKGROUND AND OBJECTIVES: Gynecological laparoscopy is a procedure associated to a high incidence of postoperative nausea and vomiting (PONV. This study aimed at comparing the efficacy of propofol or propofol plus dexamethasone in preventing PONV in

  12. Laparoscopy Instructional Videos: The Effect of Preoperative Compared With Intraoperative Use on Learning Curves.

    Science.gov (United States)

    Broekema, Theo H; Talsma, Aaldert K; Wevers, Kevin P; Pierie, Jean-Pierre E N

    Previous studies have shown that the use of intraoperative instructional videos has a positive effect on learning laparoscopic procedures. This study investigated the effect of the timing of the instructional videos on learning curves in laparoscopic skills training. After completing a basic skills course on a virtual reality simulator, medical students and residents with less than 1 hour experience using laparoscopic instruments were randomized into 2 groups. Using an instructional video either preoperatively or intraoperatively, both groups then performed 4 repetitions of a standardized task on the TrEndo augmented reality. With the TrEndo, 9 motion analysis parameters (MAPs) were recorded for each session (4 MAPs for each hand and time). These were the primary outcome measurements for performance. The time spent watching the instructional video was also recorded. Improvement in performance was studied within and between groups. Medical Center Leeuwarden, a secondary care hospital located in Leeuwarden, The Netherlands. Right-hand dominant medical student and residents with more than 1 hour experience operating any kind of laparoscopic instruments were participated. A total of 23 persons entered the study, of which 21 completed the study course. In both groups, at least 5 of 9 MAPs showed significant improvements between repetition 1 and 4. When both groups were compared after completion of repetition 4, no significant differences in improvement were detected. The intraoperative group showed significant improvement in 3 MAPs of the left-nondominant-hand, compared with one MAP for the preoperative group. No significant differences in learning curves could be detected between the subjects who used intraoperative instructional videos and those who used preoperative instructional videos. Intraoperative video instruction may result in improved dexterity of the nondominant hand. Copyright © 2016 Association of Program Directors in Surgery. Published by Elsevier Inc. All rights reserved.

  13. Surgery in biliary lithiasis: from the traditional "open" approach to laparoscopy and the "rendezvous" technique.

    Science.gov (United States)

    Tarantino, Giuseppe; Magistri, Paolo; Ballarin, Roberto; Assirati, Giacomo; Di Cataldo, Antonio; Di Benedetto, Fabrizio

    2017-12-15

    According to the current literature, biliary lithiasis is a worldwide-diffused condition that affects almost 20% of the general population. The rate of common bile duct stones (CBDS) in patients with symptomatic cholelithiasis is estimated to be 10% to 33%, depending on patient's age. Compared to stones in the gallbladder, the natural history of secondary CBDS is still not completely understood. It is not clear whether an asymptomatic choledocholithiasis requires treatment or not. For many years, open cholecystectomy with choledochotomy and/or surgical sphincterotomy and cleaning of the bile duct were the gold standard to treat both pathologies. Development of both endoscopic retrograde cholangiopancreatography (ERCP) and laparoscopic surgery, together with improvements in diagnostic procedures, influenced new approaches to the management of CBDS in association with gallstones. We decided to systematically review the literature in order to identify all the current therapeutic options for CBDS. A systematic literature search was performed independently by two authors using PubMed, EMBASE, Scopus and the Cochrane Library Central. The therapeutic approach nowadays varies greatly according to the availability of experience and expertise in each center, and includes open or laparoscopic common bile duct exploration, various combinations of laparoscopic cholecystectomy and ERCP and combined laparoendoscopic rendezvous. Although ERCP followed by laparoscopic cholecystectomy is currently preferred in the majority of hospitals worldwide, the optimal treatment for concomitant gallstones and CBDS is still under debate, and greatly varies among different centers. Copyright © 2017 The Editorial Board of Hepatobiliary & Pancreatic Diseases International. Published by Elsevier B.V. All rights reserved.

  14. Flexible ureteroscopy versus laparoscopy for the treatment of patients who initially presented with obstructive pyelonephritis

    Science.gov (United States)

    Sahin, Selcuk; Resorlu, Berkan; Eksi, Mithat; Aras, Bekir; Atar, Arda; Tugcu, Volkan

    2016-01-01

    Objective: To compare the safety and effectiveness of flexible ureteroscopy (F-URS) with transperitoneal laparoscopic ureterolithotomy (TPLU) in cases of obstructive pyelonephritis secondary to large proximal ureteral stones. Methods: A series of 42 patients presenting with obstructive pyelonephritis due to proximal ureteral stones larger than 1.5 cm were included from April 2006 to February 2015 in this comparative study. After drainage of pyonephrosis and resolution of sepsis, 22 patients treated with TPLU (Group I), and 20 patients were treated with F-URS (Group II). Preoperative patient and stone characteristics, procedure-related parameters and clinical outcomes were assessed for each group. Results: It was seen that both methods were effective in the treatment of large proximal ureteral stones. However TPLU provided a higher stone- free rate (100% vs 80%. p=0.043) and lower retreatment rate. There was no difference between the groups for the operative time and complication rate. On the other hand, patients treated with F-URS had less postoperative pain (p=0.008), a shorter hospital stay (p<0.001) and a faster return to daily activities (p<0.001). Conclusions: The results of our study show that both F-URS and TPLU are safe and effective surgical procedures for treatment of large proximal ureteral stones after controlling obstructive pyelonephritis. However, TPLU has a higher stone-free rate with comparable operating time and complication rate as compared to F-URS. On the other hand F-URS has the advantages of less postoperative pain, shorter hospital stay and faster return to daily activities. PMID:27375691

  15. Laparoscopy Instructional Videos : The Effect of Preoperative Compared With Intraoperative Use on Learning Curves

    NARCIS (Netherlands)

    Broekema, Theo H.; Talsma, Aaldert K.; Wevers, Kevin P.; Pierie, Jean-Pierre E. N.

    OBJECTIVE: Previous studies have shown that the use of intraoperative instructional videos has a positive effect on learning laparoscopic procedures. This study investigated the effect of the timing of the instructional videos on learning curves in laparoscopic skills training. DESIGN: After

  16. The role of laparoscopy in the management of urachal anomalies in ...

    African Journals Online (AJOL)

    In another case, we converted the laparoscopic intervention to a. Fig. 4. The excised urachal anomaly. Table 1 Symptomatology of patients associated with different types of urachal anomalies. Symptoms. Cyst. Sinus. Cyst + sinus. Sinus + diverticulum. Patent urachus. Total [n (%)]. Acute abdominal pain and stranguria. 2. –.

  17. Practice of Laparoscopy Principles from Pages of Ancient History and Mythology.

    Science.gov (United States)

    Misro, Aswini

    2015-12-01

    The principles of laparoscopic and robotic surgery are fascinating. These have brought unprecedented transformation in the field of surgery. It is quite interesting to note the practice of the same core principles in the pages of history and mythology.

  18. Simulation-based camera navigation training in laparoscopy-a randomized trial

    DEFF Research Database (Denmark)

    Nilsson, Cecilia; Sørensen, Jette Led; Konge, Lars

    2017-01-01

    patient safety. The objectives of this trial were to examine how to train laparoscopic camera navigation and to explore the transfer of skills to the operating room. MATERIALS AND METHODS: A randomized, single-center superiority trial with three groups: The first group practiced simulation-based camera...... navigation tasks (camera group), the second group practiced performing a simulation-based cholecystectomy (procedure group), and the third group received no training (control group). Participants were surgical novices without prior laparoscopic experience. The primary outcome was assessment of camera.......033), had a higher score. CONCLUSIONS: Simulation-based training improves the technical skills required for camera navigation, regardless of practicing camera navigation or the procedure itself. Transfer to the clinical setting could, however, not be demonstrated. The control group demonstrated higher...

  19. Technique of ‘suture less’ appendicectomy by laparoscopy in children: Preliminary communication

    OpenAIRE

    Bajpai, Minu

    2014-01-01

    Objective: Objective of this study is to present our experience by harmonic scalpel enabled, single external port appendicectomy using extracorporeally inserted ′pick and fix′ stitch in three cases. Materials and Methods: Of the eighteen appendicectomies performed with only the use of harmonic scalpel in the last 11 months, the last three were performed using a single external port with the second port accessed under the subcutaneous tissues. The procedure consists of anchoring the mesoappend...

  20. Technique of ‘suture less’ appendicectomy by laparoscopy in children: Preliminary communication

    Science.gov (United States)

    Bajpai, Minu

    2014-01-01

    Objective: Objective of this study is to present our experience by harmonic scalpel enabled, single external port appendicectomy using extracorporeally inserted ‘pick and fix’ stitch in three cases. Materials and Methods: Of the eighteen appendicectomies performed with only the use of harmonic scalpel in the last 11 months, the last three were performed using a single external port with the second port accessed under the subcutaneous tissues. The procedure consists of anchoring the mesoappendix to anterior abdominal wall by an extracorporeally inserted ‘pick and fix’ stitch followed by dissection and division of mesoappendix and appendix only with harmonic scalpel. Results: There were three patients, one female and two males aged 5, 7, and 11 years, respectively. Two were elective and one was emergency appendicectomy. Mean operating time was 30 min without any surgical complications. All patients are in follow-up with no complications. Conclusion: This study demonstrates the combined virtue of single external port, use of harmonic scalpel, and ‘pick and fix’ suture in laparoscopic appendicectomy in children. This approach avoids the use of an additional port as well as endosuture; and is safe, efficient, cost-effective, and is associated with reduced surgical time. PMID:24604981

  1. Technique of ′suture less′ appendicectomy by laparoscopy in children: Preliminary communication

    Directory of Open Access Journals (Sweden)

    Minu Bajpai

    2014-01-01

    Full Text Available Objective: Objective of this study is to present our experience by harmonic scalpel enabled, single external port appendicectomy using extracorporeally inserted ′pick and fix′ stitch in three cases. Materials and Methods: Of the eighteen appendicectomies performed with only the use of harmonic scalpel in the last 11 months, the last three were performed using a single external port with the second port accessed under the subcutaneous tissues. The procedure consists of anchoring the mesoappendix to anterior abdominal wall by an extracorporeally inserted ′pick and fix′ stitch followed by dissection and division of mesoappendix and appendix only with harmonic scalpel. Results: There were three patients, one female and two males aged 5, 7, and 11 years, respectively. Two were elective and one was emergency appendicectomy. Mean operating time was 30 min without any surgical complications. All patients are in follow-up with no complications. Conclusion: This study demonstrates the combined virtue of single external port, use of harmonic scalpel, and ′pick and fix′ suture in laparoscopic appendicectomy in children. This approach avoids the use of an additional port as well as endosuture; and is safe, efficient, cost-effective, and is associated with reduced surgical time.

  2. Technique of 'suture less' appendicectomy by laparoscopy in children: Preliminary communication.

    Science.gov (United States)

    Bajpai, Minu

    2014-01-01

    Objective of this study is to present our experience by harmonic scalpel enabled, single external port appendicectomy using extracorporeally inserted 'pick and fix' stitch in three cases. Of the eighteen appendicectomies performed with only the use of harmonic scalpel in the last 11 months, the last three were performed using a single external port with the second port accessed under the subcutaneous tissues. The procedure consists of anchoring the mesoappendix to anterior abdominal wall by an extracorporeally inserted 'pick and fix' stitch followed by dissection and division of mesoappendix and appendix only with harmonic scalpel. There were three patients, one female and two males aged 5, 7, and 11 years, respectively. Two were elective and one was emergency appendicectomy. Mean operating time was 30 min without any surgical complications. All patients are in follow-up with no complications. This study demonstrates the combined virtue of single external port, use of harmonic scalpel, and 'pick and fix' suture in laparoscopic appendicectomy in children. This approach avoids the use of an additional port as well as endosuture; and is safe, efficient, cost-effective, and is associated with reduced surgical time.

  3. Bridging the gap between formal and experience-based knowledge for context-aware laparoscopy.

    Science.gov (United States)

    Katić, Darko; Schuck, Jürgen; Wekerle, Anna-Laura; Kenngott, Hannes; Müller-Stich, Beat Peter; Dillmann, Rüdiger; Speidel, Stefanie

    2016-06-01

    Computer assistance is increasingly common in surgery. However, the amount of information is bound to overload processing abilities of surgeons. We propose methods to recognize the current phase of a surgery for context-aware information filtering. The purpose is to select the most suitable subset of information for surgical situations which require special assistance. We combine formal knowledge, represented by an ontology, and experience-based knowledge, represented by training samples, to recognize phases. For this purpose, we have developed two different methods. Firstly, we use formal knowledge about possible phase transitions to create a composition of random forests. Secondly, we propose a method based on cultural optimization to infer formal rules from experience to recognize phases. The proposed methods are compared with a purely formal knowledge-based approach using rules and a purely experience-based one using regular random forests. The comparative evaluation on laparoscopic pancreas resections and adrenalectomies employs a consistent set of quality criteria on clean and noisy input. The rule-based approaches proved best with noisefree data. The random forest-based ones were more robust in the presence of noise. Formal and experience-based knowledge can be successfully combined for robust phase recognition.

  4. Repair of inguinal hernia: a comparison between extraperitoneal laparoscopy and Lichtenstein open surgery

    Directory of Open Access Journals (Sweden)

    Tavassoli A

    2010-06-01

    Full Text Available "n Normal 0 false false false EN-US X-NONE AR-SA MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:Arial; mso-bidi-theme-font:minor-bidi;} Background: The inguinal hernia is a common disorder in general surgery. Different methods have been described for repair of these hernias. In modern methods, synthetic mesh is used to cover the wall defect and the most known method is Lichtenstein surgical repair. The laparoscopic totally extra peritoneal procedure (TEP is a newer technique of repairing hernia. The aim of this study is to compare the outcomes of totally extraperitoneal laparoscopic inguinal hernia repair versus Lichtenstein open repair in patients with inguinal hernia."n"nMethods: Among 50 patients, 25 cases underwent Lichtenstein procedure and 25 patients underwent TEP technique for repairing primary unilateral inguinal hernia. Findings during the operation have been recorded and the 12-months follow-up of patients in different views was performed through a questionnaire and then the results were compared."n"nResults: The operation duration, the rate of complications and frequency of recurrence were similar in two groups; but the hospital stay, postoperative pain, chronic groin pain and the required time to return to normal activity were significantly lower in patients who underwent the TEP method compared to the patients who underwent the Lichtenstein technique (p<0.001, p<0.001, p=0.012, p<0.001, respectively."n"nConclusion: The TEP surgical technique can be recognized as a safe method with acceptable results for patients and has significant effects on improvement of patients' quality of life after hernia repair. Suitable results of this surgical method are achieved when the surgeon goes through the learning curve.

  5. Treatment of varicocele: a prospective randomized comparison of laparoscopy versus antegrade sclerotherapy.

    Science.gov (United States)

    Sautter, T; Sulser, T; Suter, St; Gretener, H; Hauri, D

    2002-04-01

    To compare the therapeutic success, the morbidity and the costs of antegrade sclerotherapy versus laparoscopic varicocelectomy. Seventy-six consecutive varicocele patients were randomly assigned to two treatment arms. Preoperative and 3 month postoperative sperm density, motility and morphology were analysed. The diagnosis of the varicocele was established clinically and with Doppler ultrasonography. Fifty-eight patients treated by either of the two methods were followed up. The recurrence rate increased progressively with the size of the varicocele in both groups. The postoperative incidence of complications particularly hydrocele formation was significantly higher in the laparoscopic group. The costs of the disposable material for laparoscopic varicocelectomy was twice as high as for sclerotherapy. Antegrade sclerotherapy is the less invasive treatment method of male varicocele with lower costs and better outcome and should therefore be the preferred treatment method for male varicocele.

  6. Perforated Peptic Ulcer Repair: Factors Predicting Conversion in Laparoscopy and Postoperative Septic Complications.

    Science.gov (United States)

    Muller, Markus K; Wrann, Simon; Widmer, Jeannette; Klasen, Jennifer; Weber, Markus; Hahnloser, Dieter

    2016-09-01

    The surgical treatment for perforated peptic ulcers can be safely performed laparoscopically. The aim of the study was to define simple predictive factors for conversion and septic complications. This retrospective case-control study analyzed patients treated with either laparoscopic surgery or laparotomy for perforated peptic ulcers. A total of 71 patients were analyzed. Laparoscopically operated patients had a shorter hospital stay (13.7 vs. 15.1 days). In an intention-to-treat analysis, patients with conversion to open surgery (analyzed as subgroup from laparoscopic approach group) showed no prolonged hospital stay (15.3 days) compared to patients with a primary open approach. Complication and mortality rates were not different between the groups. The statistical analysis identified four intraoperative risk factors for conversion: Mannheim peritonitis index (MPI) > 21 (p = 0.02), generalized peritonitis (p = 0.04), adhesions, and perforations located in a region other than the duodenal anterior wall. We found seven predictive factors for septic complications: age >70 (p = 0.02), cardiopulmonary disease (p = 0.04), ASA > 3 (p = 0.002), CRP > 100 (p = 0.005), duration of symptoms >24 h (p = 0.02), MPI > 21(p = 0.008), and generalized peritonitis (p = 0.02). Our data suggest that a primary laparoscopic approach has no disadvantages. Factors necessitating conversions emerged during the procedure inhibiting a preoperative selection. Factors suggesting imminent septic complications can be assessed preoperatively. An assessment of the proposed parameters may help optimize the management of possible septic complications.

  7. Uniportal thoracoscopy combined with laparoscopy as minimally invasive treatment of esophageal cancer.

    Science.gov (United States)

    Caronia, Francesco Paolo; Arrigo, Ettore; Failla, Andrea Valentino; Sgalambro, Francesco; Giannone, Giorgio; Lo Monte, Attilio Ignazio; Cajozzo, Massimo; Santini, Mario; Fiorelli, Alfonso

    2018-04-01

    A 67-year-old man was referred to our attention for management of esophageal adenocarcinoma, localized at the level of the esophagogastric junction and obstructed the 1/3 of the esophageal lumen. Due to the extension of the disease (T3N1M0-Stage IIIA), the patient underwent neo-adjuvant chemo-radiation therapy and he was then scheduled for a minimally invasive surgical procedure including laparoscopic gastroplasty, uniportal thoracoscopic esophageal dissection and intrathoracic end-to-end esophago-gastric anastomosis. No intraoperative and post-operative complications were seen. The patient was discharged in post-operative day 9. Pathological study confirmed the diagnosis of adenocarcinoma (T2N1M0-Stage IIB) and he underwent adjuvant chemotherapy. At the time of present paper, patient is alive and well without signs of recurrence or metastasis. Our minimally approach compared to standard open procedure would help reduce post-operative pain and favours early return to normal activity. However, future experiences with a control group are required before our strategy can be widely used.

  8. Recommended practices for disinfection and preservation of instrumental for use in laparoscopies

    OpenAIRE

    Machado Guimarães, Solange; Busin, Lurdes; Machado Ludwig, Maria Luiza; Maciel, Miriam; Feix, Maria Augusta; Karnas Hoefel, Heloisa Helena

    2008-01-01

    The present study describes the antimicrobiological methods used for ooscopic instruments and also recommends a routine of material caring, methods and products to be employed. These orientation were also based on the author`s experience with those methods of cleaning, disinfection and sterilization at a school hospital. It is expected to simplify the procedures describing its steps with cientific embasement. El presente estudio espera simplificar las orientaciones seguras sobre los método...

  9. Safety of laparoscopy versus laparotomy in early-stage endometrial cancer : a randomised trial

    NARCIS (Netherlands)

    Mourits, M.J.E.; Bijen, C.B.; Arts, H.J.; Ter Brugge, H.G.; van der Sijde, R.; Paulsen, L.; Wijma, J.; Bongers, M.Y.; Post, W.J.; van der Zee, A.G.; de Bock, G.H.

    Background The standard surgery for early-stage endometrial cancer is total abdominal hysterectomy (TAH) and bilateral salpingo-oophorectomy, which is associated with substantial morbidity. Total laparoscopic hysterectomy (TLH) and bilateral salpingo-oophorectomy is less invasive and is assumed to

  10. A comparison of the effect of intramuscular diclofenac, ketorolac or piroxicam on postoperative pain following laparoscopy.

    Science.gov (United States)

    O'Hanlon, J. J.; Beers, H.; Huss, B. K.; Milligan, K. R.

    1996-01-01

    Sixty patients presenting for in-patient gynaecological laparoscopic surgery were randomly allocated to receive either diclofenac 75 mg (n = 20), ketorolac 30 mg (n = 20) or piroxicam 20 mg (n = 20) as an intra-muscular injection immediately after induction of anaesthesia. Postoperative visual analogue scores over the first 24 hours, using a 10 cm scale, ranged from 3.2-0.5 in the diclofenac group, 2.7-0.85 in the ketorolac group and 2.8-0.5 in the piroxicam group. The scores did not differ significantly between the three groups (p > 0.05). Mean time (SD) to first analgesia was 27(94) minutes in the piroxicam group, 16 (30) minutes in the diclofenac group and 62 (120) minutes in the piroxicam group. Six out of twenty patients in the diclofenac group required further analgesia compared to nine out of twenty in the other two drug groups. This difference was not significant. There were no reports of increased bleeding, bronchoconstriction, bleeding from the upper gastrointestinal tract, renal impairment or pain from the intra-muscular injection site in any of the groups. The administration of a non-steroidal anti-inflammatory drug to patients presenting for laparoscopic surgery reduces postoperative pain. There were no obvious differences between the agents used. PMID:8686101

  11. Near-infrared laparoscopy for real-time intra-operative arterial and lymphatic perfusion imaging.

    LENUS (Irish Health Repository)

    Cahill, R A

    2012-02-01

    Multimodal laparoscopic imaging systems possessing the capability for extended spectrum irradiation and visualization within a unified camera system are now available to provide enhanced intracorporeal operative anatomic and dynamic perfusion assessment and potentially augmented patient outcome. While ultraviolet-range energies have limited penetration and hence are probably more useful for endoscopic mucosal interrogation, the near-infrared (NIR) spectrum is of greater potential utility for the purposes of examining inducible fluorescence in abdominopelvic tissue that can be achieved by administration of specific tracer agents, either directly into the circulation (e.g. for anastomotic perfusion assessment at the time of stapling) or into the lymphatic system (e.g. for lymph basin road-mapping and\\/or focussed target nodal assessment). This technology is also capable of supplementing anatomic recognition of the biliary system while implantable fibres can also be inserted intraoperatively for the purpose of safeguarding vital structures such as the oesphagus and ureters especially in difficult reoperations. It is likely that this technological capability will find a clear and common indication in colorectal specialist and general surgical departments worldwide in the near future.

  12. Robotic technology results in faster and more robust surgical skill acquisition than traditional laparoscopy.

    Science.gov (United States)

    Moore, Lee J; Wilson, Mark R; Waine, Elizabeth; Masters, Rich S W; McGrath, John S; Vine, Samuel J

    2015-03-01

    Technical surgical skills are said to be acquired quicker on a robotic rather than laparoscopic platform. However, research examining this proposition is scarce. Thus, this study aimed to compare the performance and learning curves of novices acquiring skills using a robotic or laparoscopic system, and to examine if any learning advantages were maintained over time and transferred to more difficult and stressful tasks. Forty novice participants were randomly assigned to either a robotic- or laparoscopic-trained group. Following one baseline trial on a ball pick-and-drop task, participants performed 50 learning trials. Participants then completed an immediate retention trial and a transfer trial on a two-instrument rope-threading task. One month later, participants performed a delayed retention trial and a stressful multi-tasking trial. The results revealed that the robotic-trained group completed the ball pick-and-drop task more quickly and accurately than the laparoscopic-trained group across baseline, immediate retention, and delayed retention trials. Furthermore, the robotic-trained group displayed a shorter learning curve for accuracy. The robotic-trained group also performed the more complex rope-threading and stressful multi-tasking transfer trials better. Finally, in the multi-tasking trial, the robotic-trained group made fewer tone counting errors. The results highlight the benefits of using robotic technology for the acquisition of technical surgical skills.

  13. Single port laparoscopic ileocaecal resection for Crohn's disease: a multicentre comparison with multi-port laparoscopy

    NARCIS (Netherlands)

    Carvello, M.; de Groof, E. J.; de Buck van Overstraeten, A.; Sacchi, M.; Wolthuis, A. M.; Buskens, C. J.; D'Hoore, A.; Bemelman, W. A.; Spinelli, A.

    2018-01-01

    AimSingle port (SP) ileocaecal resection (ICR) is an established technique but there are no large studies comparing SP and multi-port (MP) laparoscopic surgery in Crohn's disease (CD). The aim of this study was to compare postoperative pain scores and analgesia requirements after SP and MP

  14. Contemporary virtual reality laparoscopy simulators: quicksand or solid grounds for assessing surgical trainees?

    NARCIS (Netherlands)

    Thijssen, Anthony S.; Schijven, Marlies P.

    2010-01-01

    BACKGROUND: A demand for safe, efficient laparoscopic training tools has prompted the introduction of virtual reality (VR) laparoscopic simulators, which might be used for performance assessment. The purpose of this review is to determine the value of VR metrics in laparoscopic skills assessment.

  15. Deep neuromuscular blockade leads to a larger intraabdominal volume during laparoscopy

    DEFF Research Database (Denmark)

    Lindekaer, Astrid Listov; Halvor Springborg, Henrik; Istre, Olav

    2013-01-01

    Shoulder pain is a commonly reported symptom following laparoscopic procedures such as myomectomy or hysterectomy, and recent studies have shown that lowering the insufflation pressure during surgery may reduce the risk of post-operative pain. In this pilot study, a method is presented for measur...

  16. Laparoscopy or clinical follow-up to detect occult diaphragm injuries ...

    African Journals Online (AJOL)

    -sided thoracoabdominal stab wounds: A pilot randomized controlled trial. ... Abstract. Background: The purpose of this study was to determine whether patients with left-sided thoracoabdominal (TA) stab wounds can be safely treated with ...

  17. Introducing the Xitact LS500 laparoscopy simulator: toward a revolution in surgical education

    NARCIS (Netherlands)

    Schijven, Marlies P.; Jakimowicz, Jack J.

    2003-01-01

    Minimal invasive surgery has become the primary technique-of-choice for uncomplicated, symptomatic cholelithiasis. Skills needed for performing laparoscopic cholecystectomy cannot be extrapolated directly from the open surgical technique. An obvious need exists for a valid, objective, and repetitive

  18. Technical problems during laparoscopy: a systematic method of troubleshooting for surgeons

    Directory of Open Access Journals (Sweden)

    Siddaiah-Subramanya Manjunath

    2017-08-01

    Full Text Available Laparoscopic surgery has progressed rapidly since the early 1990s. For some surgical operations, it has become the standard of care to the extent where open surgery is sometimes looked down upon by some surgical colleagues as well as by patients.

  19. Laparoscopy-Assisted Cystectomy: Management of a Large Ovarian Cyst with Torsion

    Directory of Open Access Journals (Sweden)

    Emin Üstunyurt

    2013-04-01

    Full Text Available Ovarian cysts are the most common cause of pelvic masses in women. Although laparoscopic surgery is considered the gold standard treatment for ovarian cysts, most of the large ovarian cysts continue to be treated by laparotomy due to technical difficulties. Laparoscopic-assisted cystectomy is an alternative operation type for managing such cases. A case of large ovarian cyst with adnexal torsion in a 21-year-old virgin patient is presented in this report. In this case laparoscopic-assisted cystectomy was performed without intraoperatif complication. Postoperative course was uneventful. Pathology revealed a benign serous cystadenoma. At 6 months follow up, she continued to be asymptomatic, and sonography showed no recurrence of her disease. Laparoscopic-assisted cystectomy is a safe and effective procedure for large adnexal cysts.

  20. Novel Technique for Safe Primary Trocar Insertion in Laparoscopy: Chou's Method

    Directory of Open Access Journals (Sweden)

    Pan-Hsin Chou

    2005-06-01

    Conclusion: The results with this novel method incorporating the unique concept of directly holding the fascia suggest it to be relatively safe, simple, and economic. The risk of major vascular injury was decreased to nil by this technique and the chance of visceral injury was also minimal.