A sleeve gastrectomy is a surgical procedure that reduces the size of the stomach. During the surgery, a thin vertical sleeve is fashioned with a stapling device. The excised part of the stomach is then removed, leaving a much smaller stomach and a much-reduced capacity to hold food.
The sleeve used in a sleeve gastrectomy normally holds between 50 to 150 mL. It is around the size of a medium banana. This sleeve makes for a much smaller stomach capacity, especially when considering how much the stomach is stretched in an obese patient.
A sleeve gastrectomy does not prevent the body from absorbing vitamins and nutrients, something which may occur in other types of weight loss surgery. With lap band surgery, post-operative adjustments are needed, but with the sleeve gastrectomy, these adjustments are not required. According to clinical studies, people who opt for a sleeve gastrectomy lose up to 65 percent of their excess weight on average. Some people also enjoy benefits other than weight loss from a sleeve gastrectomy. People who had high blood pressure before the sleeve gastrectomy may achieve normal blood pressure afterward. Patients who have type 2 diabetes may be able to greatly reduce the symptoms of the disease.
A sleeve gastrectomy is a simpler surgery that tends to have less potential complications. However, a gastric bypass surgery may offer more potential weight loss overall. Patients who want to opt for a surgery with less risks may prefer a sleeve gastrectomy over gastric bypass surgery. People who have more overall weight to lose may be better candidates for a gastric bypass, but it is truly an individual decision.