Roux-en-Y gastric bypass (r   n-w  )n. A Y-shaped surgical connection that divides the small intestine and connects one end to the stomach, bile duct, or other structure and connects the opposite end to the small intestine at a point below the first connection. Also called Roux-en-Y anastomosis. |
Roux-en-Y gastric bypass,
a treatment for morbid obesity consisting of surgical division of the small intestine to form two arms. The jejunum is attached to a stoma into a gastric pouch, and the bypassed duodenum connects the pylorus with an end-to-side anastomosis into the lower jejunum.
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