Roux-en-Y gastric bypass
Pronunciation: roo-on-why
A surgical procedure that creates a small stomach pouch and reroutes the small intestine to bypass part of the stomach and duodenum.
Full Definition
Roux-en-Y gastric bypass (RYGB) is considered the gold standard of bariatric surgery, involving the creation of a small gastric pouch (15-30ml) that is connected directly to the jejunum via a gastrojejunostomy. The procedure combines restrictive and malabsorptive mechanisms for weight loss. Named after Swiss surgeon César Roux who developed the Y-shaped intestinal reconstruction technique. The procedure results in significant weight loss and improvement in obesity-related comorbidities.
Usage
Usage note: Always hyphenate Roux-en-Y. The 'Y' should be capitalized as it refers to the anatomical shape.
In Context
- "The patient underwent laparoscopic Roux-en-Y gastric bypass with creation of a 25ml gastric pouch." — Operative report
- "Post-RYGB patients require lifelong vitamin supplementation to prevent nutritional deficiencies." — Patient education material