Related Experiment Video
Updated: Jul 16, 2026

Roux-en-Y Gastric Bypass Operation in Rats
Published on: June 11, 2012
Hospitalization before and after mini-gastric bypass surgery
1Center for Excellence in Laparoscopic Obesity Surgery, Henderson, NV 89052, USA. drr@clos.net <drr@clos.net>
Abstract:
The mini-gastric bypass (MGB) was developed to address some of the limitations of the Roux-en-Y gastric bypass ("RNY"). The RNY has recently been reported to increase the need for hospitalization for complications after RNY surgery. To determine the rates and indications for inpatient hospital use before and after MGB in comparison to similar rates in RNY. The study is a self reported retrospective study of patients from across the United States receiving MGB in Centers for Excellence in Laparoscopic Obesity Surgery ("CELOS") hospitals from 2000 to 2005. Complications and hospitalization in the year before and in the 1 to 5 years after MGB. 1069 patients who underwent MGB were selected for study. The rate of hospitalization in the year following MGB was 67% of the rate in the year preceding MGB (11% vs. 17%, P<0.001). The most common reasons for admission prior to MGB were general medical problems (38%) obstetric and Gynecological issues (36%), orthopedic problems (16%), gallbladder surgery (9%) and renal stones in 2%. The most common reasons for hospital admission after MGB were complications from surgery (29%), gallbladder surgery (20%), renal stones (14%), plastic surgery procedures (11%), appendectomy (9%), Gynecologic issues (9%) and orthopedic problems (6%). Thus while MGB complications made up a third of hospital readmissions following MGB surgery the over all hospitalization rates declined significantly. Previous studies have demonstrated that hospitalization after RNY gastric bypass increases remarkably (20% per year). The present study shows that hospitalization following MGB instead of rising, as reported with RNY, decreases by a third. The MGB has been shown to be a short, safe successful weight loss surgery in previous work. The present study supports the MGB as a low risk procedure that decreases the need for hospitalization.
Insights
Mini-gastric bypass (MGB) significantly reduces hospitalizations compared to pre-surgery rates, unlike Roux-en-Y gastric bypass (RNY). This weight loss surgery demonstrates a lower overall need for inpatient care, supporting its safety and effectiveness.
Area of Science:
- Bariatric surgery
- Laparoscopic surgery
- Obesity treatment
Background:
- Roux-en-Y gastric bypass (RNY) surgery is associated with increased hospitalizations.
- Mini-gastric bypass (MGB) was developed to improve upon RNY limitations.
Purpose of the Study:
- To compare hospitalization rates before and after MGB.
- To compare MGB hospitalization rates with those of RNY.
- To identify indications for hospitalization after MGB.
Main Methods:
- Retrospective study of 1069 patients undergoing MGB from 2000-2005.
- Analysis of hospitalizations in the year prior and 1-5 years after MGB.
- Comparison with reported RNY hospitalization data.
Main Results:
- Hospitalization rate post-MGB was 67% of the pre-MGB rate (11% vs 17%).
- Top reasons for admission post-MGB included surgical complications (29%) and gallbladder issues (20%).
- MGB showed a decrease in hospitalizations, contrasting with reported increases after RNY.
Conclusions:
- Mini-gastric bypass is a safe and successful weight loss procedure.
- MGB significantly decreases overall hospitalization rates.
- MGB may be a lower-risk alternative to RNY regarding hospital admissions.
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...
Peptic Ulcer Disease V: Surgical Management and Nursing Care
Surgical Interventions for Peptic Ulcer Disease
Cardiomyopathy VII: Pre and Post Operative Nursing Management
Appendicitis-II: Diagnostic Studies and Management
Diagnosing Appendicitis
It requires a multifaceted approach, starting with a detailed physical examination to pinpoint the location and nature of the pain and identify any associated symptoms. Laboratory tests play a crucial role. A complete Blood Count (CBC) typically reveals leukocytosis (an increased number of...
Endoscopic Procedures II: Colonoscopy
Endoscopic Procedures I: Esophagogastroduodenoscopy
During an EGD, the endoscope can be used to:

