Sleeve gastrectomy surgeries have become increasingly popular in recent years. A large part of the stomach is irreversibly removed during sleeve gastrectomy operation. The remaining gastric pouch is around 150-200 ml. Sleeve gastrectomy surgery has two major effects on obesity:
1. Restrictive effect: Satiety is reached earlier as the stomach space is decreased.
2. Hormonal effect: There is a reduction in the feeling of hunger between meals and loss of appetite as a majority of appetite hormones are released by the stomach.
Sleeve gastrectomy is a shorter procedure with a lower risk of leaks as there is no passage between stomach and intestines involved.
Five-year outcomes of these procedures indicate a weight loss similar to those with bypass surgery. However, there is no definite information on regaining weight in the long term.