Related Experiment Video
Updated: May 6, 2026

Roux-en-Y Gastric Bypass Operation in Rats
Published on: June 11, 2012
β-Shaped intracorporeal Roux-en-Y reconstruction after totally laparoscopic distal gastrectomy
Kazuo Motoyama1, Kazuyuki Kojima, Mikiko Hayashi
1Department of Esophageal and Gastric Surgery, Tokyo Medical and Dental University, Tokyo, Japan, motoyama@kb3.so-net.ne.jp.
Background:
The use of laparoscopic gastrectomy for the treatment of gastric cancer has been increasing. Roux-en-Y (R-Y) reconstruction after laparoscopy-assisted distal gastrectomy is now widely used to decrease leakage and prevent reflux. Owing to the need for a less invasive technique, we have developed a new technique for intracorporeal R-Y reconstruction (β reconstruction) after totally laparoscopic distal gastrectomy (TLDG).
Methods:
In this report, we describe the β reconstruction technique and short-term outcomes of the initial 105 patients who underwent β reconstruction from December 2008 to March 2012.
Results:
The operative and β reconstruction times were 330 ± 61.3 and 29 ± 5.6 min (mean ± SD), respectively. Anastomotic leakage after gastrojejunostomy occurred in one patient (0.9 %), requiring reoperation. Four cases (3.8 %) of anastomotic stenosis required endoscopic balloon dilation. However, R-Y stasis was not noted.
Conclusions:
We have indicated a technical description as well as the usefulness of β-shaped intracorporeal R-Y reconstruction after TLDG.

