The loop duodenal switch, also known as the SIPS or SADI Procedure, is the newest modification to the standard duodenal switch designed to provide even greater weight loss with less risk.
This upgraded, minimally invasive procedure is far safer than the original duodenal switch procedure.
SIPS stands for Stomach Intestinal Pylorus Sparing surgery or you may have heard it called the single-anastomosis duodenal switch. SIPS essentially means that the food is still able to pass through the pylorus after this procedure. The pylorus is the valve at the bottom portion of the stomach that controls the rate of emptying into the small intestine. Preserving the pylorus has many advantages over the traditional duodenal switch procedure (BPD-DS or biliopancreatic diversion with duodenal switch).
Some advantages to note are less risk for ulcers, bile reflux gastritis, hypoglycemia, nutritional deficiencies or dumping syndrome. In addition, using a loop of intestine to connect the stomach to rather than a traditional Roux limb, allows for only one connection needed rather than the original two decreasing the risk for a leak and eliminating the later risk of an internal hernia.
Since the sleeve gastrectomy is the first part of the SIPS procedure, this may be an appropriate option for those who are looking for additional weight loss after a prior sleeve gastrectomy surgery. The SIPS procedure can also be performed as a first line surgery as well.