Sleeve Gastrectomy (SG) is a laparoscopic or keyhole surgical procedure, which actually doesn’t include any surgery on the intestines. It is one of the most effective bariatric procedures. By changing the stomach shape from sac to a long narrow gastric tube, SG dramatically reduces the capacity of the stomach from approximately 2L to 100-150 ml.
In addition, the recent studies have shown, the part of the stomach that is removed during sleeve gastrectomy plays a major part in producing the hunger hormone (Grehlin). This further aids in the reduction of appetite and food craving.
The smaller stomach capacity restricts food intake by allowing only a small amount of food to be eaten at any meal. As a result, the patients feel early fullness and satiety while eating just 3 small meals per day. This facilitates weight loss. In addition, regular exercise and healthy food choices are also necessary to optimize the outcome.
Sleeve gastrectomy is becoming increasingly popular and has progressively been performed as a standalone procedure. With satisfactory results in the mid-term the extent of excess weight loss is about 60% (final results may vary on the individual). Risks of the surgical complications such as bleeding and leakage from the cut edge of the remaining stomach are low within 1-3%.
Sleeve gastrectomy (SG), and Roux-en-Y gastric bypass (RYGB) are most effective bariatric surgical procedures.