Sleeve gastrectomy is a procedure in which Dr. Naim removes portion of your stomach. Following the surgery, your stomach will have a vertical sleeve-like appearance, and will be able to hold approximately 100 to 150 mL. For most patients, this smaller stomach allows them to fill up more quickly, and dramatically decrease their food intake. Dr. Naim performs more sleeve gastrectomies than any other type of bariatric surgery, and it has a higher success rate than any other weight loss surgery.