Roux-en-Y gastric bypass



Roux-en-Y gastric bypass is a weight-loss surgery that reduces the size of the stomach and restricts the amount of food a person can eat. 


It involves creating a stomach pouch out of a small portion of the stomach and attaching it directly to the small intestine, bypassing a large part of the stomach and duodenum. 


It is often done as a laparoscopic surgery, with small incisions in the abdomen.


It slows gastric emptying by impairing motility of the Roux loop.


Laparoscopic procedure associated with a 3.3% rate of major complications and 27% minor complications.

Associated with increased sensitivity to alcohol.

Roux-en-Y gastric bypass is associated with depletion of vitamin B 12 in about 20% of patients.

Psychiatric comorbidities in patient to undergo RYGB is 3.2 times higher than age and sex matched normal weight controls.

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