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Gastric bypass surgery
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Video: Roux-en-Y gastric bypass
By Mayo Clinic staffTranscript
In Roux-en-Y gastric bypass, the surgeon creates a small pouch at the top of the stomach. The pouch is the only part of the stomach that receives food. This greatly limits the amount that you can comfortably eat and drink at one time. The small intestine is then cut a short distance below the main stomach and connected to the new pouch. Food flows directly from the pouch into this part of the intestine. The main part of the stomach, however, continues to make digestive juices. The portion of the intestine still attached to the main stomach is reattached farther down. This allows the digestive juices to flow to the small intestine. Because food now bypasses a portion of the small intestine, fewer nutrients and calories are absorbed.
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References
- Farrell TM, et al. Clinical application of laparoscopic bariatric surgery: An evidence-based review. Surgical Endoscopy. 2009;23:930.
- Spivak H, et al. Long-term outcomes of laparoscopic adjustable gastric banding and laparoscopic Roux-en-Y gastric bypass in the United States. Surgical Endoscopy. 2012;26:1909.
- Bariatric surgery for severe obesity. National Institute on Diabetes and Digestive and Kidney Diseases. http://win.niddk.nih.gov/publications/gastric.htm. Accessed Jan. 15, 2013.
- Andrews RA, et al. Surgical management of severe obesity. http://www.uptodate.com/index. Accessed Jan. 15, 2013.
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