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What life-threatening complications can happen with gastric bypass surgery?

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Nearly 1% to 5% of people have serious or life-threatening complications with gastric bypass surgery, such as:

The risk of complications is lower at centers that do more than 100 weight loss surgeries per year. Deaths in the month following gastric bypass surgery are very rare (about 0.2% to 0.5%, or less than one in 200 people) when the procedure is done by a highly experienced surgeon.

  • Blood clot (pulmonary embolism)
  • Heart attack
  • Leak in the surgical connections with the intestines
  • Serious infection or bleeding

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 should I expect after a gastric bypass surgery?

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