Gastric bypass is a type of weight loss surgery used for the treatment of obesity. In gastric bypass surgery, a small stomach pouch is created by stapling along the upper part of the stomach. Next the small intestine is cut two sections. The lower section of the small intestine is attached to the opening in the stomach pouch. This pouch enables food to bypass the lower stomach and portion of the small intestine. The pouch can hold only a few ounces of food at a time and by bypassing the small intestine and the stomach, fewer calories and nutrients from the food are absorbed. As a result the patients consume less food, absorb fewer calories and achieve weight loss.
The procedure is performed as a standard open procedure or as a laparoscopic procedure. Laparoscopic approach can be made by making several small incisions rather than open procedure which involves single large incision. In laparoscopic procedure small instruments and a tiny camera are used to guide the surgery
Roux-en-Y gastric bypass is the most commonly performed gastric bypass surgery. In this surgery, a small pouch is created by stapling the upper part of the stomach. The smaller portion of the stomach is then attached directly to the small intestine, bypassing large portion of the stomach and the upper part of the small intestine (duodenum).
Your obesity surgeon will decide which surgery is best for you. In addition to quick and dramatic weight loss, gastric bypass surgery could also improve health issuesassociated with severe obesity.