The Experts below are selected from a list of 318 Experts worldwide ranked by ideXlab platform
J Mcguigan - One of the best experts on this subject based on the ideXlab platform.
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objective psychomotor skills assessment of experienced junior and novice Laparoscopists with virtual reality
World Journal of Surgery, 2001Co-Authors: Anthony G Gallagher, Karen Richie, Neil Mcclure, J McguiganAbstract:Objective assessment of psychomotor skills in surgery is now a priority; however, this assessment is difficult to achieve because of measurement difficulties associated with the reliability and validity of assessing surgical skills in vivo and in the laboratory. In this study virtual reality (VR) was used to overcome these problems in the objective psychomotor assessment of senior, junior, and novice Laparoscopists. Twelve experienced laparoscopic surgeons (performed >50 Minimal Access Surgery (MAS) procedures), 12 inexperienced laparoscopic surgeons (<10 MAS procedures), and 12 laparoscopic novices (no MAS procedures) participated in the study. Each subject completed all six tasks of the Minimally Invasive Surgical Trainer; Virtual Reality (MIST VR). In comparison to the other groups, experienced laparoscopic surgeons performed the tasks significantly (p < 0.01) faster, had a lower error rate, were more economic in their movement of surgical instruments and in the use of diathermy. As a group they also showed greater consistency in their performance. MIST VR distinguished between the three groups of Laparoscopists. VR provides a useful objective assessment tool for evaluating psychomotor skills for laparoscopic surgery.
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Objective Psychomotor Skills Assessment of Experienced, Junior,and Novice Laparoscopists with Virtual Reality
World journal of surgery, 2001Co-Authors: Anthony G Gallagher, Karen Richie, Neil Mcclure, J McguiganAbstract:Objective assessment of psychomotor skills in surgery is now a priority; however, this assessment is difficult to achieve because of measurement difficulties associated with the reliability and validity of assessing surgical skills in vivo and in the laboratory. In this study virtual reality (VR) was used to overcome these problems in the objective psychomotor assessment of senior, junior, and novice Laparoscopists. Twelve experienced laparoscopic surgeons (performed >50 Minimal Access Surgery (MAS) procedures), 12 inexperienced laparoscopic surgeons (
Anthony G Gallagher - One of the best experts on this subject based on the ideXlab platform.
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objective psychomotor skills assessment of experienced junior and novice Laparoscopists with virtual reality
World Journal of Surgery, 2001Co-Authors: Anthony G Gallagher, Karen Richie, Neil Mcclure, J McguiganAbstract:Objective assessment of psychomotor skills in surgery is now a priority; however, this assessment is difficult to achieve because of measurement difficulties associated with the reliability and validity of assessing surgical skills in vivo and in the laboratory. In this study virtual reality (VR) was used to overcome these problems in the objective psychomotor assessment of senior, junior, and novice Laparoscopists. Twelve experienced laparoscopic surgeons (performed >50 Minimal Access Surgery (MAS) procedures), 12 inexperienced laparoscopic surgeons (<10 MAS procedures), and 12 laparoscopic novices (no MAS procedures) participated in the study. Each subject completed all six tasks of the Minimally Invasive Surgical Trainer; Virtual Reality (MIST VR). In comparison to the other groups, experienced laparoscopic surgeons performed the tasks significantly (p < 0.01) faster, had a lower error rate, were more economic in their movement of surgical instruments and in the use of diathermy. As a group they also showed greater consistency in their performance. MIST VR distinguished between the three groups of Laparoscopists. VR provides a useful objective assessment tool for evaluating psychomotor skills for laparoscopic surgery.
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Objective Psychomotor Skills Assessment of Experienced, Junior,and Novice Laparoscopists with Virtual Reality
World journal of surgery, 2001Co-Authors: Anthony G Gallagher, Karen Richie, Neil Mcclure, J McguiganAbstract:Objective assessment of psychomotor skills in surgery is now a priority; however, this assessment is difficult to achieve because of measurement difficulties associated with the reliability and validity of assessing surgical skills in vivo and in the laboratory. In this study virtual reality (VR) was used to overcome these problems in the objective psychomotor assessment of senior, junior, and novice Laparoscopists. Twelve experienced laparoscopic surgeons (performed >50 Minimal Access Surgery (MAS) procedures), 12 inexperienced laparoscopic surgeons (
Dan C. Martin - One of the best experts on this subject based on the ideXlab platform.
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Surgery for endometriosis.
Current opinion in obstetrics & gynecology, 1991Co-Authors: Ceana Nezhat, Farr Nezhat, Silfen S, Dan C. MartinAbstract:Advanced operative laparoscopy in general, and videolaseroscopy using CO2 laser via operative channel of the laparoscope and video, specifically, has revolutionized the management of endometriosis. Adhesion formation is reduced and subsequent fertility rates exceed those obtained with laparotomy. The most complicated cases of endometriosis, including involvement of the rectovaginal septum, gastrointestine, and urinary tract, can now be treated endoscopically by an experienced operative Laparoscopist.
Ann Reed - One of the best experts on this subject based on the ideXlab platform.
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Diagnostic Accuracy of Tissue Impedance Measurement Interpretation for Correct Veress Needle Placement in Canine Cadavers
Veterinary surgery : VS, 2013Co-Authors: Jacqueline C. Whittemore, Amanda Mitchell, Sara Hyink, Ann ReedAbstract:Objective To determine the diagnostic accuracy of tissue impedance measurement interpretation (TIMI) for determining correct versus incorrect Veress needle placement in feline cadavers. Study Design Prospective, randomized, blinded trial. Study Population Cat cadavers (n = 24). Methods Two Laparoscopists (1 experienced, 1 novice), blinded to TIMI, placed reusable Veress needles in study subjects in a randomized order. A third individual interpreted impedance measurements as consistent with correct versus incorrect placement. Veress needle tip locations were marked by injecting contrasting colors of India ink. Tissue dissection was performed to localize ink. Sensitivity, specificity, accuracy, precision, and kappa statistics for TIMI for placements by the experienced and novice Laparoscopist were determined. P
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Diagnostic Accuracy of Tissue Impedance Measurement Interpretation for Correct Veress Needle Placement in Feline Cadavers: Tissue Impedance Measurement Interpretation for Veress Needle Placement in Cats
Veterinary surgery : VS, 2013Co-Authors: Sara Hyink, Jacqueline C. Whittemore, Amanda Mitchell, Ann ReedAbstract:To determine the diagnostic accuracy of tissue impedance measurement interpretation (TIMI) for determining correct versus incorrect Veress needle placement in feline cadavers. Prospective, randomized, blinded trial. Cat cadavers (n = 24). Two Laparoscopists (1 experienced, 1 novice), blinded to TIMI, placed reusable Veress needles in study subjects in a randomized order. A third individual interpreted impedance measurements as consistent with correct versus incorrect placement. Veress needle tip locations were marked by injecting contrasting colors of India ink. Tissue dissection was performed to localize ink. Sensitivity, specificity, accuracy, precision, and kappa statistics for TIMI for placements by the experienced and novice Laparoscopist were determined. P < .05 was considered significant. TIMI identified 36/38 correct and 2/10 incorrect placements. TIMI identified 2/2 bowel perforations but was unable to identify 8 inappropriate placements in the retroperitoneal fat pad. Impedance measurement interpretation had 94.7% sensitivity, 20% specificity, 79.2% accuracy, and 81% precision overall. Agreement between TIMI and Veress needle location was absent (kappa = -0.15, P = .01) for placements by the experienced Laparoscopist and substantial (kappa = 0.78, P < .01) for the novice Laparoscopist. Failure of TIMI to identify placement in the retroperitoneal fat pad resulted in poor accuracy. Small cat size limited the number of appropriate placement sites, perhaps resulting in excessively dorsal placements. Use of TIMI may increase detection of clinically significant inappropriate Veress needle placements, like bowel perforations, and decrease installment phase complications. Further evaluation of Veress needle placement with and without TIMI is warranted. © Copyright 2013 by The American College of Veterinary Surgeons.
Ronney Abaza - One of the best experts on this subject based on the ideXlab platform.
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SCIENTIFIC PAPER The Role of Stent Placement in Laparoscopic Ureteroureterostomy: Experimental Porcine Model
2013Co-Authors: Jonathan Picard, Ronney AbazaAbstract:Objective: Laparoscopic ureteral surgery is becoming increasingly common; however, advanced laparoscopic skills are required due to the precise suturing involved. Because of the size of the ureter and need for careful mucosal apposition to prevent stricturing, there is less room for error than with larger lumens, as in pyeloplasty. We sought to identify whether the presence of a stent is beneficial or a hindrance in performing ureteroureterostomy both for the novice and more experienced Laparoscopist. Materials and Methods: Eight ureteroureteral anastomoses were performed on each ureter of a 50 kg female pig for a total of 16 anastomoses. Eight were performed with a stent in place, and 8 were performed without a stent. An equal number with and without a stent were performe
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The role of stent placement in laparoscopic ureteroureterostomy: experimental porcine model.
Jsls-journal of The Society of Laparoendoscopic Surgeons, 2009Co-Authors: Jonathan Picard, Ronney AbazaAbstract:OBJECTIVE Laparoscopic ureteral surgery is becoming increasingly common; however, advanced laparoscopic skills are required due to the precise suturing involved. Because of the size of the ureter and need for careful mucosal apposition to prevent stricturing, there is less room for error than with larger lumens, as in pyeloplasty. We sought to identify whether the presence of a stent is beneficial or a hindrance in performing ureteroureterostomy both for the novice and more experienced Laparoscopist. MATERIALS AND METHODS Eight ureteroureteral anastomoses were performed on each ureter of a 50 kg female pig for a total of 16 anastomoses. Eight were performed with a stent in place, and 8 were performed without a stent. An equal number with and without a stent were performed by a novice and an experienced Laparoscopist. Anastomoses were graded by time to complete and quality of the anastomosis. Quality was graded by the presence and size of defects and patency of the lumen. RESULTS The overall times required for ureteral division and spatulation, initial stitch placement, completion of the anastomosis, and total time for the stented vs. nonstented procedures were 4.3 vs. 2.2 minutes (P=0.05), 4.2 vs. 4.4 minutes (P=0.16), 10.4 vs. 13.5 (P=0.22) minutes, and 18.3 vs. 20.1 minutes (P=0.49), respectively. For stented and nonstented ureters, 3 vs. 5 anastomoses were found to have no or very small gaps, 5 vs. 1 anastomosis were found to have large gaps, and 0 vs. 2 anastomoses were found to have occluded lumens, respectively. CONCLUSIONS For both the novice and experienced surgeon, presence of a stent did not affect the overall time to complete a ureteroureteral anastomosis despite the significantly longer time needed to divide and spatulate the ureter. There were no occlusions when the ureteral stent was placed prior to suturing, which may indicate a reduced risk of "back-walling" the ureter.
