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What happens during gastric bypass surgery?

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The surgeon divides your stomach into a large portion and a much smaller one. Then, in a process sometimes called "stomach stapling,” the small part of the stomach is sewn or stapled together to make a pouch, which can hold only a cup or so of food.

The surgeon then disconnects the new, small stomach pouch from the majority of the stomach and first part of the small intestine (the duodenum), and connects it to a part of the small intestine slightly farther down (the jejunum). This surgical technique is called a "Roux-en-Y."

From: What Is Gastric Bypass Surgery? WebMD Medical Reference

SOURCES:

American Society for Metabolic and Bariatric Surgery: "Brief History and Summary of Bariatric Surgery;" "Rationale for the Surgical Treatment of Morbid Obesity;" "Gastric Banding and Laparoscopic Adjustable Gastric Banding;" and "Bariatric Surgery." 

Brethauer, S. November 2006. Cleveland Clinic Journal of Medicine,

Virji, A. April 15, 2006. American Family Physician,

Kral, J.   , Oct. 28, 2006. British Medical Journal

Fisher, B. January 2004. Obesity Surgery,

Buchwald, H., Oct. 13, 2004. Journal of the American Medical Association,

Cleveland Clinic: "Surgical Options for Extreme Obesity."

UpToDate.

Reviewed by Nayana Ambardekar on October 25, 2017

SOURCES:

American Society for Metabolic and Bariatric Surgery: "Brief History and Summary of Bariatric Surgery;" "Rationale for the Surgical Treatment of Morbid Obesity;" "Gastric Banding and Laparoscopic Adjustable Gastric Banding;" and "Bariatric Surgery." 

Brethauer, S. November 2006. Cleveland Clinic Journal of Medicine,

Virji, A. April 15, 2006. American Family Physician,

Kral, J.   , Oct. 28, 2006. British Medical Journal

Fisher, B. January 2004. Obesity Surgery,

Buchwald, H., Oct. 13, 2004. Journal of the American Medical Association,

Cleveland Clinic: "Surgical Options for Extreme Obesity."

UpToDate.

Reviewed by Nayana Ambardekar on October 25, 2017

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What are complications that may result from gastric bypass surgery?

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