Biliopancreatic Diversion – In this operation, part of the stomach is removed as well as a significant bypass of the intestines. Because of the magnitude of the intestinal bypass, the patient is at risk for malnutrition and is on many vitamin and protein supplements.
This operation is very good for long-term weight loss but the patient needs to be monitored lifelong with bloodwork every six months. These patients are at high risk for brittle bone disease, night blindness, and liver problems. This is only an operation for someone committed to the risks and understands the need for compliance in follow-up as well as in taking the nutritional supplements.
Risks of this operation can include leak, infection, bleeding, and pancreatitis in the short term and can include reoperations long term for malnutrition or for possible bowel obstruction. Research has show that, on average, the duodenal switch takes off up to 80% of your excess weight at 10 years.