Roux-en-Y Gastric Bypass—Open Surgery

Overview

Definition

Roux-en-Y gastric bypass is a surgery for obesity . It changes 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—bypasses the first part of the small intestine, where many of the calories from food are usually absorbed

Possible Complications

If you are planning to have Roux-en-Y gastric bypass, your doctor will review a list of possible complications, which may include:

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

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

  • Smoking
  • Drinking
  • Chronic diseases, 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 http://asmbs.org 

Weight Control Information Network http://www.win.niddk.nih.gov 

CANADIAN RESOURCES

HealthLink BC http://www.healthlinkbc.ca 

Weight Loss Surgery http://www.weightlosssurgery.ca 

References

Gastrointestinal surgery for severe obesity. National Institute of Diabetes and Digestive and Kidney Diseases website. Available at: http://win.niddk.nih.gov/publications/gastric.htm. Updated June 2011. Accessed December 4, 2014.

Obesity risks add to complications of gastric bypass [news release]. Duke University Medical Center website. Available at: http://www.dukemednews.org/news/article.php?id=7217. Accessed December 4, 2014.

Roux-en-Y gastric bypass. Cleveland Clinic website. Available at: http://my.clevelandclinic.org/services/procedure%5Ftreatment/gastric%5Fbypass%5Fsurgery/roux-en-y.aspx. Accessed December 4, 2014.

Roux-en-Y gastric bypass. Columbia University Medical Center website. Available at: http://obesitymd.org/gastric.html. Accessed December 4, 2014.

Roux-en-Y gastric bypass weight-loss surgery. Johns Hopkins Medicine website. Available at: http://www.hopkinsmedicine.org/healthlibrary/test%5Fprocedures/gastroenterology/roux-en-y%5Fgastric%5Fbypass%5Fweight-loss%5Fsurgery%5F135,65/. Accessed December 4, 2014.

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

6/24/2011 DynaMed Plus Systematic Literature Surveillance  http://www.dynamed.com : 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.Maciejewski ML, Livingston EH, Smith VA, et al. Survival among high-risk patients after bariatric surgery. JAMA. 2011;305(23):2419-2426.