Roux-en-Y Gastric Bypass Surgery
UW Health's Medical and Surgical Weight Management surgery team performs gastric bypass or Roux-en-Y surgery, the most common surgery in the U.S. This procedure may be done either through an open approach (large incision) or via the more common laparoscopic approach.
The Roux-en-Y Gastric Bypass Surgery Procedure
During the operation, surgical staples are used to create a small pouch at the top of the stomach. A segment of the small intestine is then attached to this pouch.
Food bypasses most of the stomach and the first part of the small intestine. Most patients typically have a one- to three-night hospital stay.
Benefits of Roux-en-Y Gastric Bypass
The Roux-en-Y gastric bypass operation helps you lose weight by:
- Caloric restriction: The small pouch created can hold only two to four tablespoons at a time, thereby drastically reducing the amount of food that can be eaten.
- Nutrient malabsorption: Food bypasses a large portion of the stomach and the first portion of the intestine.
Additional benefits of Roux-en-Y gastric bypass include:
- Significicant hormonal changes for hunger and glycemic control
- Immediate and robust weight loss (six to seven pounds per week in the first six to 12 months)
- It is the most durable procedure for long-term weight loss