Tomasz Rogula1, Zhamak Khorgami2, Martin Bazan3, Cristina Mamolea3, Pablo Acquafresca4, Omar El-Shazly5, Ali Aminian2, Philip Schauer2. 1. Cleveland Clinic, Bariatric and Metabolic Institute, 9500 Euclid Ave, M66-06, Cleveland, OH, 44118, USA. tomrogula@gmail.com. 2. Cleveland Clinic, Bariatric and Metabolic Institute, 9500 Euclid Ave, M66-06, Cleveland, OH, 44118, USA. 3. Jagiellonian University Medical College, Krakow, Poland. 4. University of Buenos Aires, Buenos Aires, Argentina. 5. University of Pittsburgh Medical Center, Pittsburgh, PA, USA.
Abstract
BACKGROUND: Sleeve gastrectomy is a common procedure in recent years for treatment of morbid obesity however leak from staple-line is its main challenging complication. Despite numerous studies regarding leak after sleeve gastrectomy, there is still no conclusion on reinforcement of staple-line in this procedure. The purpose of this study was to compare two methods of oversewing staple-line versus no reinforcement. METHODS: Resected stomachs of 30 patients undergoing laparoscopic sleeve gastrectomy were evaluated for bursting pressure immediately after extraction from the abdomen. Reinforcement technique was applied in random order to 3 segments of the staple-line on each specimen: continuous Lembert's sutures, continuous through-and-through sutures, and no reinforcement. Bursting pressure was determined by injection of methylene blue solution into lumen of resected stomach and recording pressure at which leakage occurs. Location of leak, intragastric pressure, and volume at first leak were recorded. RESULTS: Baseline characteristics of patients were similar in randomized groups for order of reinforcement technique. Mean ischemia time of specimens was 17.4 ± 10.4 min. No leaks were observed in segments reinforced with Lembert's oversewing technique. The through-and-through reinforcement segments were first to leak in 21 out of 30 cases (70 %) with mean leak pressure of 570 mmHg and mean leak volume of 399 ml. Leakage occurred in 9 segments (30 %) with no reinforcement with a leak pressure of 329 mmHg and volume of 380 ml. CONCLUSIONS: In vitro, Lembert's suture reinforcement technique on stapled human stomach is associated with less leakage rate in comparison to through-and-through reinforcement and non-reinforced staple-line.
BACKGROUND: Sleeve gastrectomy is a common procedure in recent years for treatment of morbid obesity however leak from staple-line is its main challenging complication. Despite numerous studies regarding leak after sleeve gastrectomy, there is still no conclusion on reinforcement of staple-line in this procedure. The purpose of this study was to compare two methods of oversewing staple-line versus no reinforcement. METHODS: Resected stomachs of 30 patients undergoing laparoscopic sleeve gastrectomy were evaluated for bursting pressure immediately after extraction from the abdomen. Reinforcement technique was applied in random order to 3 segments of the staple-line on each specimen: continuous Lembert's sutures, continuous through-and-through sutures, and no reinforcement. Bursting pressure was determined by injection of methylene blue solution into lumen of resected stomach and recording pressure at which leakage occurs. Location of leak, intragastric pressure, and volume at first leak were recorded. RESULTS: Baseline characteristics of patients were similar in randomized groups for order of reinforcement technique. Mean ischemia time of specimens was 17.4 ± 10.4 min. No leaks were observed in segments reinforced with Lembert's oversewing technique. The through-and-through reinforcement segments were first to leak in 21 out of 30 cases (70 %) with mean leak pressure of 570 mmHg and mean leak volume of 399 ml. Leakage occurred in 9 segments (30 %) with no reinforcement with a leak pressure of 329 mmHg and volume of 380 ml. CONCLUSIONS: In vitro, Lembert's suture reinforcement technique on stapled human stomach is associated with less leakage rate in comparison to through-and-through reinforcement and non-reinforced staple-line.
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