Biliopancreatic diversion with duodenal switch (BPD/DS) Overview A biliopancreatic diversion with a duodenal switch (BPD/DS) is a less-common weight-loss procedure that entails two major steps. The first step is sleeve gastrectomy in which about 80 percent of the stomach is removed, leaving a smaller tube-shaped stomach, similar to a banana. However, the valve that releases…
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