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Related Experiment Video

Updated: May 9, 2026

A Protocol for Roux-en-Y Gastric Bypass in Rats using Linear Staplers

A Protocol for Roux-en-Y Gastric Bypass in Rats using Linear Staplers

Published on: August 21, 2021

A bidirectional stapling technique for laparoscopic small bowel anastomosis.

Valerie A Marks¹, Josefina Farra, Francisco Jacome

¹The DeWitt Daughtry Family Department of Surgery, University of Miami Miller School of Medicine, Miami, Florida.

Surgery for Obesity and Related Diseases : Official Journal of the American Society for Bariatric Surgery

|August 10, 2013

Summary

This summary is machine-generated.

A novel bidirectional stapling technique for small bowel anastomosis in gastric bypass surgery significantly reduces early small bowel obstruction (SBO) complications. This method enhances patient safety by preventing afferent limb obstruction.

Keywords:

Bidirectional stapling Laparoscopic Roux-en-Y gastric bypass Laparoscopic small bowel anastomosis Perioperative complication Small bowel obstruction Stenosis

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Last Updated: May 9, 2026

A Protocol for Roux-en-Y Gastric Bypass in Rats using Linear Staplers

A Protocol for Roux-en-Y Gastric Bypass in Rats using Linear Staplers

Published on: August 21, 2021

Area of Science:

Minimally invasive surgery
Gastrointestinal surgery
Bariatric surgery

Background:

Laparoscopic Roux-en-Y gastric bypass presents technical challenges, with early small bowel obstruction (SBO) rates ranging from 0.7% to 5.2%.
Standard anastomotic techniques can lead to afferent limb obstruction, a complication of gastric bypass surgery.

Purpose of the Study:

To evaluate the efficacy of a bidirectional stapling technique in reducing early SBO after laparoscopic Roux-en-Y gastric bypass.
To assess the safety and tolerability of this modified anastomotic technique.

Main Methods:

A prospective cohort of 2263 patients undergoing laparoscopic Roux-en-Y gastric bypass with bidirectional stapling was analyzed.
Patients were evaluated for early SBO based on National Institutes of Health criteria for bariatric surgery.

Main Results:

Only 3 patients (0.13%) experienced early SBO, attributed to intraluminal blood clots, not anastomotic narrowing.
Diagnoses were made via upper gastrointestinal study and CT scans with oral contrast.
All SBO cases were successfully managed with laparoscopic intervention.

Conclusions:

The bidirectional stapling technique, with modifications, is a safe and effective method for small bowel anastomosis in gastric bypass.
This technique offers advantages over standard methods by decreasing the incidence of perioperative SBO.