To prepare you for surgery, an IV will be placed in your arm. You will receive fluids and medications through this line during the procedure. A breathing tube will be placed through your mouth and into your throat. This will help you breathe during surgery. You will also have a catheter placed in your bladder to drain urine.
An 8-10 inch incision will be made to open the abdomen. Surgical staples will be used to create a small pouch at the top of your stomach. This pouch, which can hold about 1 cup of food, will be your new, smaller stomach. A normal stomach can hold 4-6 cups of food.
Next, the small intestine will be cut and attached to the new pouch. With the intestinal bypass, food will now move from the new stomach pouch to the middle section of the small intestine. It will skip the lower stomach and the upper section of the small intestine.
Finally, the upper section of the small intestine will be attached to the middle section of the small intestine. This will allow fluid that the lower stomach makes to move down the upper section of the small intestine and into the middle section.
When the bypass is completed, the incisions will be closed with staples or stitches.
Bariatric surgery. Merck Manual Professional Version website. Available at: ...(Click grey area to select URL) 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 22, 2017.
Maciejewski ML, Livingston EH, Smith VA, et al.
Survival among high-risk patients after bariatric surgery.
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 22, 2017.
Roux-en-Y gastric bypass. Columbia University Medical Center website. Available at: ...(Click grey area to select URL) Accessed December 22, 2017.
Roux-en-Y gastric bypass weight-loss surgery. Johns Hopkins Medicine website. Available at: https://www.hopkinsmedicine.org/healthlibrary/test_procedures/gastroenterology/roux-en-y_gastric_bypass_weight-loss_surgery_135,65. Accessed December 22, 2017.
6/24/2011 DynaMed Plus Systematic Literature Surveillance
: 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.
Last reviewed November 2018 by
EBSCO Medical Review Board
Marcin Chwistek, MD Last Updated: 12/20/2014