Single Anastomosis Duodenal Switch (SADS)
The single-anastomosis duodenal switch (SADS), also called stomach intestinal pylorus sparing surgery (SIPS), or the single loop DS, is very similar to the standard duodenal switch operation, except that the small intestine is only transected at one point instead of two. With this operation, the majority of the most stretchable portion of the stomach is permanently removed (as in a sleeve gastrectomy) but basic stomach function remains the same. In addition, roughly half of the upper small intestine is bypassed, resulting in a moderate decrease in calorie absorption. Weight loss is achieved both through restriction of food consumption, malabsorption, and changes in metabolic function which results in very good long-term weight loss maintenance. This procedure is also performed robotically.
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