Roux-en-Y Gastric Bypass—Laparoscopic Surgery

Overview

Definition

Roux-en-Y gastric bypass is a surgery for obesity . It changes the size of the stomach and small intestine to cause weight loss by:

  • Restricting food intake—creates a small pouch to serve as the stomach, so you cannot eat as much
  • Making the body unable to absorb as many calories from the food—bypassing the first part of the small intestine, where many of the calories from food are usually absorbed

Possible Complications

Problems from the procedure are rare, but all procedures have some risk. Your doctor will review potential problems, like:

  • Bleeding
  • Infection
  • Blood clots
  • Pulmonary embolism
  • Hernia formation
  • Bowel obstruction
  • Breakdown of the staples, allowing leakage of stomach juices into the abdomen
  • Diarrhea, abdominal cramping, and vomiting
  • Dumping syndrome—occurs after eating sweets, when food moves too quickly through the small intestine causing sweating, fatigue, lightheadedness, cramping, and diarrhea
  • The need for additional surgery
  • Complications of general anesthesia
  • Death

Long-term complications include vomiting and gallstones.

Before your procedure, talk to your doctor about ways to manage factors that may increase your risk of complications such as:

  • Smoking
  • Drinking
  • Chronic disease such as diabetes

SymptomsandDiagnosis

Treatments

This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.

Edits to original content made by Denver Health.

a (Bariatric Surgery; Weight-Reduction Surgery)

RESOURCES

American Society for Metabolic and Bariatric Surgery https://asmbs.org 

National Institute of Diabetes and Digestive and Kidney Diseases https://www.niddk.nih.gov 

CANADIAN RESOURCES

HealthLink BC https://www.healthlinkbc.ca 

Weight Loss Surgery https://weightlosssurgery.ca 

References

Bariatric surgery. EBSCO DynaMed Plus website. Available at:  http://www.dynamed.com/topics/dmp~AN~T483434/Bariatric-surgery  . Updated October 23, 2017. Accessed December 21, 2017.

Bariatric surgery. Merck Manual Professional Version website. Available at: http://www.merckmanuals.com/professional/nutritional-disorders/obesity-and-the-metabolic-syndrome/bariatric-surgery. Updated December 2016. Accessed December 22, 2017.

Bariatric surgery. National Institute of Diabetes and Digestive and Kidney Diseases website. Available at: https://www.niddk.nih.gov/health-information/weight-management/bariatric-surgery. Accessed December 21, 2017.

Maciejewski ML, Livingston EH, Smith VA, et al. Survival among high-risk patients after bariatric surgery. JAMA. 2011;305(23):2419-2426.

Obesity surgery: Roux-en-Y gastric bypass. Cleveland Clinic website. Available at: https://my.clevelandclinic.org/health/treatments/17285-obesity-surgery/roux-en-y-gastric-bypass. Accessed December 21, 2017.

Roux-en-Y gastric bypass. Columbia University Medical Center website. Available at: http://columbiasurgery.org/conditions-and-treatments/gastric-bypass-surgery. Accessed December 21, 2017.

Roux-en-Y gastric bypass weight-loss surgery. Johns Hopkins Medicine website. Available at: https://www.hopkinsmedicine.org/healthlibrary/test%5Fprocedures/gastroenterology/roux-en-y%5Fgastric%5Fbypass%5Fweight-loss%5Fsurgery%5F135,65. Accessed December 21, 2017.

9/2/2009 DynaMed Plus Systematic Literature Surveillance  http://www.dynamed.com/topics/dmp~AN~T483434/Bariatric-surgery  : The Longitudinal Assessment of Bariatric Surgery (LABS) Consortium. Perioperative safety in the longitudinal assessment of bariatric surgery. N Engl J Med. 2009;361(5):445-454.

6/24/2011 DynaMed Plus Systematic Literature Surveillance  http://www.dynamed.com/topics/dmp~AN~T483434/Bariatric-surgery  : Pontiroli AE, Morabito A. Long-term prevention of mortality in morbid obesity through bariatric surgery. a systematic review and meta-analysis of trials performed with gastric banding and gastric bypass. Ann Surg. 2011;253(3):484-487.