The biliopancreatic diversion bypass is also performed through open surgery with one long incision. It is a more complicated procedure and parts of the stomach are removed, the bypass is attached to the distal ileum. Because of the risk for nutritional deficiencies, this technique is not used very often.
To curb food intake a small pouch is created by stapling a portion of the stomach. Then, a Y-shaped part of the small intestine is attached to the pouch so that food can bypass the duodenum, as the bypass extends to the initial portion of the jejunum. Food intake is significantly restricted in both of these techniques while reducing your hunger at the same time to facilitate healthy weight loss. During the first year following your bypass you will notice the majority of your weight loss which will culminate by the end of the second year.
