Biliopancreatic diversion

The biliopancreatic diversion procedure consists of a partial gastrectomy and gastroileostomy with a long segment of Roux limb and a short common channel (the part of the small bowel that receives both food and biliopancreatic secretions), resulting in fat and starch malabsorption. The use of this procedure results in high rates of protein malnutrition, anemia, diarrhea, and stomal ulceration, limiting its use.