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How does restrictive weight loss surgery work?

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The surgeon uses a small part of your stomach to make a pouch at the end of your esophagus (the tube connecting your mouth to your stomach). This pouch holds only about half an ounce -- roughly the space in a shot glass. It fills up quickly and empties slowly, through a narrow opening to the larger part of the stomach.

SOURCES:
News release, Allergan.
American Society for Metabolic and Bariatric Surgery: "Bariatric Surgery."
Kelvin D. Higa, MD, program director of minimally invasive and bariatric surgery, Fresno Heart & Surgical Hospital, Fresno, CA; past president, American Society for Metabolic and Bariatric Surgery.
Walter Pories, MD, professor, founding chair of surgery department, Brody School of Medicine at East Carolina University, Greenville, NC.
Buchwald, H. The Journal of the American Medical Association, Oct. 13, 2004.
Sjöström, L. New England Journal of Medicine, Dec. 23, 2004.
Colquitt, J. Cochrane Database of Systematic Reviews, 2009.
Brolin, R. The Journal of the American Medical Association, Dec. 11, 2002.
Buchwald, H. Surgery, October 2007.
McMahon, M. Mayo Clinic Proceedings, October 2006.

Reviewed by Minesh Khatri on July 30, 2019

SOURCES:
News release, Allergan.
American Society for Metabolic and Bariatric Surgery: "Bariatric Surgery."
Kelvin D. Higa, MD, program director of minimally invasive and bariatric surgery, Fresno Heart & Surgical Hospital, Fresno, CA; past president, American Society for Metabolic and Bariatric Surgery.
Walter Pories, MD, professor, founding chair of surgery department, Brody School of Medicine at East Carolina University, Greenville, NC.
Buchwald, H. The Journal of the American Medical Association, Oct. 13, 2004.
Sjöström, L. New England Journal of Medicine, Dec. 23, 2004.
Colquitt, J. Cochrane Database of Systematic Reviews, 2009.
Brolin, R. The Journal of the American Medical Association, Dec. 11, 2002.
Buchwald, H. Surgery, October 2007.
McMahon, M. Mayo Clinic Proceedings, October 2006.

Reviewed by Minesh Khatri on July 30, 2019

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