BPD With DS
The biliopancreatic diversion with duodenal switch (BPD-DS) combines restrictive and malabsorptive elements to achieve and maintain the best reported long-term percentage of excess weight loss among modern weight-loss surgery procedures.
The Restrictive Component
The BPD/DS procedure includes a sleeve gastrectomy, which reduces the size of the stomach, effectively restricting its capacity while maintaining its normal functionality.
Unlike the unmodified BPD and RNY, which both employ a gastric "pouch" and bypass the pyloric valve, the DS procedure keeps the pyloric valve intact. This reduces the risk of marginal ulcers and the narrowing of the stoma.
The Malabsorptive Component
The malabsorptive component of the BPD/DS procedure rearranges the small intestine to separate the flow of food from the flow of bile and pancreatic juices. This reduces the absorption of calories from most foods. Further down the digestive tract, these divided intestinal paths are rejoined; food and digestive juices begin to mix, and limited absorption occurs in the common tract as the food continues on its path toward the large intestine.