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Updated: Jul 20, 2026

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A Protocol for Roux-en-Y Gastric Bypass in Rats using Linear Staplers
Published on: August 21, 2021
Does experience preclude leaks in laparoscopic gastric bypass?
R Gonzalez1, K Haines, S F Gallagher
1Interdisciplinary Obesity Treatment Group, Department of Surgery, University of South Florida College of Medicine, c/o Tampa General Hospital, P.O. Box 1289, Tampa, FL 33601, USA.
Surgical Endoscopy
|September 9, 2006
Summary
Surgeon experience did not reduce staple-line leaks in laparoscopic Roux-en-Y gastric bypass (LRYGB). This study found leak incidence was independent of the number of procedures performed, suggesting experience may not prevent anastomotic complications.
Area of Science:
- Bariatric Surgery
- Surgical Outcomes
- Gastrointestinal Surgery
Background:
- Laparoscopic Roux-en-Y gastric bypass (LRYGB) outcomes improve with surgeon experience.
- However, the impact of experience on staple-line leak incidence remains unclear.
- This study investigates leak rates in relation to accrued experience in a university bariatric program.
Purpose of the Study:
- To evaluate the incidence of staple-line leaks during laparoscopic Roux-en-Y gastric bypass (LRYGB).
- To determine if surgeon experience, measured by the number of procedures performed, affects leak rates.
- To analyze leak occurrence in relation to patient characteristics and operative data.
Main Methods:
- Prospectively collected data from the first 200 LRYGB patients were analyzed.
- Stapling techniques included linear staplers for stomach division and jejunojejunostomy, and a 21-mm circular stapler for cardiojejunostomy.
- Outcomes were evaluated chronologically, comparing results across quartiles of surgeon experience.
Main Results:
- A staple-line leak rate of 4.5% (9/200 patients) was observed.
- Leaks occurred at the cardiojejunostomy (3%), jejunojejunostomy (1%), and excluded stomach (0.5%).
- No significant correlation was found between the number of LRYGBs performed and the occurrence of leaks (p=0.59).
Conclusions:
- The incidence of staple-line leaks in LRYGB appears independent of the number of procedures performed.
- Surgeon experience may not significantly reduce or eliminate anastomotic complications like staple-line leaks.
- Further research may be needed to identify factors influencing leak rates in LRYGB.

