Effect of Biliopancreatic Diversion on Glucose Homeostasis

"In Roux-en-Y Gastric Bypass Surgery a small gastric pouch is created and connected to a segment of jejunum. Bowel continuity is restored by reconnecting the Roux limb and the biliopancreatic limb approximately \~75-150 cm distal to the gastrojejunostomy. Therefore, ingested food bypasses most of the stomach, the entire duodenum, and a short segment of the jejunum."

In Biliopancreatic Diversion Surgery a horizontal gastrectomy is conducted leaving a portion of the stomach, which is connected to the small intestine, \~250 cm from the ileocecal valve and the biliopancreatic limb is connected to the ileum, \~50 cm from the ileocecal valve. Digestive secretions from the biliopancreatic limb mix in the common channel, where ingested food is also delivered by the alimentary limb.