Related Experiment Video
Updated: Aug 7, 2026

11:58
A Protocol for Roux-en-Y Gastric Bypass in Rats using Linear Staplers
Published on: August 21, 2021
A simple biangulation stapling technique for large anastomoses in gastric surgery
Michiya Kobayashi1, Takehiro Okabayashi, Tsutomu Namikawa
1Department of Tumor Surgery, Kochi Medical School, Nankoku, Japan. kobayasm@kochi-ms.ac.jp
Summary
A new biangulation technique simplifies large stomach and jejunal pouch anastomosis after gastrectomy. This safe method, using only two stapler applications, showed no leakage or stenosis in 12 early gastric cancer cases.
Area of Science:
- Surgical Innovation
- Gastrointestinal Surgery
- Oncology
Background:
- Proximal gastrectomy with jejunal pouch interposition is a surgical procedure for gastric conditions.
- Creating a large anastomosis between the jejunal pouch and remnant stomach can be technically challenging.
- Existing triangulation techniques require multiple stapler applications.
Purpose of the Study:
- To introduce and evaluate a novel, simpler biangulation technique for large anastomosis in proximal gastrectomy.
- To assess the safety and efficacy of the biangulation method in jejunal pouch reconstruction.
Main Methods:
- Description of the biangulation anastomosis technique, utilizing two linear stapler applications.
- Application of the technique in 12 patients undergoing proximal gastrectomy for early gastric cancer.
- Postoperative assessment using barium meal studies and endoscopic examinations.
Main Results:
- The biangulation technique proved simpler than the triangulation method, requiring fewer stapler applications.
- No anastomotic leakage or stenosis was observed in any of the 12 cases.
- Barium meal and endoscopic findings confirmed successful jejunal pouch reconstruction.
Conclusions:
- The biangulation technique is a simple, safe, and effective method for creating large-diameter anastomoses.
- This technique is ideal for jejunal pouch reconstruction following proximal gastrectomy.
- The biangulation method offers a valuable alternative for improving surgical outcomes in gastric cancer patients.
