Related Experiment Video
Updated: Jul 2, 2026

A Protocol for Roux-en-Y Gastric Bypass in Rats using Linear Staplers
Published on: August 21, 2021
First experiences with A circular stapled gastro-jejunostomy by a new transorally introducible stapler system in
Edward Shang1, Till Hasenberg2, Richard Magdeburg2
1Department of Surgery, University Hospital Mannheim, Theodor-Kutzer-Ufer 1-3, 68135, Mannheim, Germany. edward.shang@urz.uni-heidelberg.de.
Background:
The only effective treatment for patients with morbid obesity is surgery. Laparoscopic bariatric surgery has become quite popular in attempts to decrease the morbidity associated with laparotomy. The aim of this study was to assess the safety and efficiency by using SurgASSIST(R) for performing the gastrojejunostomy in laparoscopic Roux-en-Y gastric bypass (RYGBP). The variables were compared with the results using the standard laparoscopic circular end-to-end anastomotic stapler (CEEA(R)).
Methods:
After randomization, the gastro-jejuostomy of RYGBP was performed in ten patients by transabdominal introduced circular stapler (group A) and in ten patients by transorally introduced circular stapler (SurgASSIST(R); group B) via five-port laparoscopy. A prospective 12-month postoperative follow-up including documentation of minor and major complication as well as weight loss and body composition is done every 8 weeks.
Results:
The average body mass index (BMI, 52 kg/m(2)) and the other baseline characteristics were equally distributed in both groups. There was no difference in reduction of BMI, excess weight loss, and fat mass in both groups. The rate of port site wound infection in group A was significantly higher (p = 0.03) when compared to group B. There was no anastomotic leak or stricture postoperatively in both groups.
Conclusions:
Performing of a gastrojejunostomy in RYGBP by SurgASSIST is a safe and feasible method in comparison to conventional circular stapler systems. The advantage of SurgASSIST is the avoidance to introduce the stapler through the abdominal wall and, by this, a possible port site wound infection. Further prospective studies have to be performed to verify the advantages of the SurgASSIST in comparison to conventional circular stapler systems.
Related Concept Videos
Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
Endoscopic Procedures I: Esophagogastroduodenoscopy
During an EGD, the endoscope can be used to:
Enteral Nutrition II: Nasointestinal and Gastrostomy Feeding
Nasointestinal Feeding
Nasointestinal feeding involves placing a tube through...