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Updated: Aug 19, 2026

A Protocol for Roux-en-Y Gastric Bypass in Rats using Linear Staplers
Published on: August 21, 2021
A secure technique of intracorporeal Roux-Y reconstruction after laparoscopic distal gastrectomy
Kyoichi Takaori1, Eiji Nomura, Hideaki Mabuchi
1Department of General and Gastroenterological Surgery, Osaka Medical College, 2-7 Daigakumachi, Takatsuki, Osaka 569-8686, Japan. sur098@poh.osaka-med.ac.jp
Background:
Laparoscopic distal gastrectomy [LDG] is a minimally invasive surgery for gastric carcinoma. The Billroth I method has been commonly employed to reconstruct alimentary tract after LDG. Conversely, Roux-Y reconstruction is employed far less commonly despite its merits. Technical difficulties, including a risk of twisting the Roux loop under limited vision through a laparoscope, have hampered Roux-Y reconstruction after LDG.
Methods:
We performed LDG and intracorporeal Roux-Y reconstruction in 5 patients with early gastric cancer. The procedure included a functional end-to-end anastmosis of the stomach and jejunum, consisting of side-to-side approximation of jejunal loop to greater curvature of the gastric remnant with a laparoscopic stapling device followed by closure of the open end and simultaneous division of the jejunum with another stapler.
Results:
Roux-Y reconstruction was successfully accomplished without torsion of the loop in all patients.
Conclusions:
By using the present technique, intracorporeal Roux-Y reconstruction after LDG can be accomplished without a risk of twisting the jejunal loop.
