Related Experiment Video
Updated: Apr 10, 2026

A Protocol for Roux-en-Y Gastric Bypass in Rats using Linear Staplers
Published on: August 21, 2021
Early Postoperative Progression to Solid Foods Is Safe After Roux-en-Y Gastric Bypass
Caroline M J Theunissen1, John K Maring2, Natascha J C Raeijmaekers3
1Department of Surgery, Elisabeth-TweeSteden Hospital, Dr. Deelenlaan 5, 5042 AD, Tilburg, Netherlands. ctheunissen@tsz.nl.
Background:
Even though admission time is reduced with the implementation of various enhanced recovery protocols, many clinics still instruct patients after weight loss surgery to maintain a fluid or minced-food diet for at least 2 weeks postoperatively. We reasoned that with adequate preoperative instructions, including adequate chewing of all foods, early progression to solid foods would not increase the risk of (gastro)enterostomy leakage.
Methods:
In December 2010, a new dietary protocol was implemented for all patients undergoing a Roux-en-Y gastric bypass, allowing progression to solid foods from 12 h postprocedure onwards. All patients received thorough preoperative eating instructions and eating awareness counselling from a qualified dietician and psychologist. A retrospective study was performed of 936 patients who underwent a primary or redo laparoscopic Roux-en-Y gastric bypass between January 2011 and June 2014 in our hospital. All 30-day complications, readmissions and reoperations were noted.
Results:
No 30-day loss to follow-up occurred. Overall 30-day complication rate was 9.4%, with gastrointestinal leakage occurring in only 0.6%. A low threshold for readmission was maintained due to the short mean admission time of 1.87 days. Readmission rate was 4.8%--mainly for observation of postoperative pain--and 1.8% of our patients required reoperation within 30 days. Mortality was 0.1%. Our results are comparable to results published by other Dutch centres advocating conventional diets, showing no increase in leakage or other complications.
Conclusions:
We conclude that early progression to solid foods after Roux-en-Y gastric bypass surgery is a feasible alternative as no increase in complications is observed.
Related Concept Videos
Enteral Nutrition II: Nasointestinal and Gastrostomy Feeding
Nasointestinal Feeding
Nasointestinal feeding involves placing a tube...
Enteral Nutrition I: Orogastric and Nasogastric Feeding
Orogastric (OG) and nasogastric (NG) feeding are two standard methods used for enteral nutrition. Enteral nutrition is often preferred over...
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...
Peptic Ulcer Disease V: Surgical Management and Nursing Care
Surgical Interventions for Peptic Ulcer Disease
Gastric Emptying
Gastric Phase of Digestion
When food enters the stomach, it stretches the stomach walls and activates stretch receptors. This triggers local reflexes of the enteric nervous system, mediated through the myenteric plexus. These...

