Stomach Intestinal Pylorus-Sparing (SIPS) surgery also known as SADI -S (Single anastomosis Duodeno- ileal Bypass with Sleeve gastrectomy) is a type of weight-loss surgery. It is a modified version of existing bariatric techniques and provides a less complicated procedure than the duodenal switch and causes fewer complications and nutritional deficiencies when
compared to the duodenal switch.