The SADI-S is a restrictive and malabsorptive operation typically reserved for patients with severe obesity or obesity-related illnesses. This means we will surgically restrict the amount of food you can ingest. We will significantly bypass the small intestine so fewer calories are absorbed. This results in significant weight loss, but also an increased risk of nutritional deficiencies.
The operation begins with the restrictive portion of the procedure. Using a surgical stapler, the surgeon divides the stomach into two parts, the “sleeve” and the “remaining stomach.” The sleeve is your new stomach and is about the size of a banana. The new and smaller stomach will restrict the amount of food that can be eaten. The remaining stomach will be removed and discarded during the surgery.
Next, the surgeon will perform the malabsorptive portion of the procedure. The surgeon will divide the first part of the small intestine just below the stomach. Then the surgeon will measure a few feet from the end of the small intestine and connect this part of the small intestine to the stomach. The SADI-S bypasses a sizable portion of the small intestine, creating considerable malabsorption.
Food will travel from the mouth into the sleeve. Since the new sleeve is small, you should feel full sooner than you had in the past. The food will then continue into the intestine, and digestion will occur.
After a SADI-S, you can expect to stay 2–3 nights in the hospital. You will also need to follow a special diet to allow for healing and to avoid complications. In about two months, most patients return to a regular healthy eating plan. Because the new sleeve is so small and a sizable portion of the intestine has been bypassed, certain vitamins and minerals can no longer be absorbed like they once were. Therefore, vitamin and mineral supplements are essential for the rest of your life.