What percentage of the intestine is bypassed in SADI-S?

In the context of the Single Anastomosis Duodenal Switch (SADI-S) procedure, approximately 50% of the small intestine is bypassed. The SADI-S technique incorporates elements of both duodenal switch and gastric sleeve surgery. In this procedure, a significant portion of the small intestine is bypassed to reduce the absorption of calories and nutrients, which contributes to weight loss and metabolic benefits for patients with obesity.

The surgical process generally involves creating a smaller gastric sleeve and then connecting the bowel to the sleeve at a point that allows for the bypassing of about half of the intestines. This extensive bypass is crucial in achieving substantial weight loss and successful management of obesity-related comorbidities. The ability to exclude such a significant length of the intestine enhances malabsorption, which plays a pivotal role in the effectiveness of the SADI-S procedure.