Gastric Bypass Surgery

Gastric bypass surgery is the most commonly performed bariatric procedure. It works by restricting the amount of food the stomach can hold and by limiting the absorption of calories and nutrients in the small intestine. Gastric bypass surgery can result in a loss of up to 60 to 80 percent of the excess weight. This surgery often reduces appetite and increases the feeling of fullness. However, it can lead to long-term vitamin and mineral deficiencies.

In the procedure, a small stomach pouch is created by dividing the top of the stomach from the rest of the stomach. Then the first portion of the small intestine is divided, and the lower end of the small intestine is brought up and connected to the new small stomach pouch. The upper portion of the small intestine is then connected to the small intestine further down so that stomach acids and digestive enzymes from the bypassed stomach will eventually mix with food going through the digestive system.

Gastric bypass surgery can cause complications if the patient does not strictly adhere to the postoperative diet and follow-up visits.

Watch the video below for a demonstration of this procedure.