Biliary Pancreatic Diversion/
Duodenal Switch
BPD/DS operations reduce the size of the stomach, but the stomach pouch created is much larger than with other procedures. The intention is to only partially restrict the amount of food consumed. Compared to the Roux-en-Y gastric bypass, a much larger portion of the stomach is left intact, allowing patients to consume more food - almost normal sized portions. The procedure's effectiveness is based almost solely on malabsorption. The configuration of the small intestine diverts the bile and pancreatic juices so they mix with the ingested food closer to the end of the small intestine. Protein is absorbed almost 100 percent, carbohydrates somewhat less and fat absorption is minimal. Since weight loss is mainly achieved through limited digestion and malabsorption of the food consumed, it is essential that patients having this procedure comply with the appropriate nutritional supplementation as prescribed through the Weight Loss Surgery Program.
This is a minimally invasive surgical techniques that decreases the length of hospitalization and the morbidity for general surgery procedures. Application of minimally invasive techniques to obesity surgery had previously been limited to stapled techniques used primarily for the Roux-en-Y gastric bypass and laparoscopic band placement.
