Gastric Bypass


What is it? For this procedure, a bariatric surgeon creates a small pouch that bypasses the stomach and attaches to the intestine. It’s also known as Roux-en-Y procedure. Estimated weight loss: 70-80 percent of excess weight loss over two years

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How is surgery done? This can be done in one of two ways. In one, the surgeon uses a laparoscope and makes several small incisions in the abdomen, or stomach area. The second is a traditional surgery performed through a 10- to 12-inch incision in the abdomen.

How does this help me lose weight? The small pouch limits the amount of food you can eat. And because it’s connected to the intestines, it reduces the number of calories your body will absorb.

Advantages of Gastric Bypass

  • Longest track record compared to other weight loss surgeries
  • Weight loss tends to be greater than with LAP-BAND®

Disadvantages of Gastric Bypass

  • "Dumping syndrome," which causes abdominal cramps, nausea and diarrhea, occurs if sweets and chocolates are eaten
  • Longer recovery time
  • Surgery is permanent
  • Nutritional/mineral supplements required
  • More surgically involved than sleeve gastrectomy or LAP-BAND surgery, so there is greater risk

Click here to view a 40-minute interactive video from Emmi Education to learn more about gastric bypass surgery. (Links to an external website.)

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