A newer bariatric surgery option called the 'sleeve gastrectomy' changes the shape of the stomach and reduces the size of the stomach by removing part of the stomach without re-routing the intestines. The stomach is divided into two sections. The larger section is permanently removed. The smaller section is long and narrow, and resembles a 'sleeve'.
The stomach will function in the same way, but the volume that the stomach can hold is much less. You will feel full more quickly when you eat, and therefore, consume less food at each meal.
Results are similar to the Roux-en-Y gastric bypass. This procedure is also performed laparoscopically.
More information about sleeve gastrectomy surgery (American Society for Metabolic and Bariatric Surgery)