Sleeve surgery is a type of obesity surgery in which a significant reduction in gastric capacity and a compulsory and physiological restriction on the amount of food consumed occurs. In this type of surgery, 80% of the elastic portion of the stomach which contains a portion of the stomach that releases Ghrelin (the hormone that plays an important role in appetite or the hunger hormone) is removed from the stomach and the remainder of the stomach is repaired with special titanium punctures and 80% of the gastric tissue is removed from the body.
Patients have little tendency for oral administration after surgery due to significant gastric emptying and physiological elimination of ghrelin, and even if they do not, they may not be able to consume excessively. This restriction remains intact for the rest of their life, and in the first year after surgery the patient’s weight is reduced significantly and it will remain that way.
Vertical sleeve gastrectomy is a purely restrictive form of weight loss surgery in which approximately three-fourths of the stomach is removed. Unlike many other forms of bariatric surgery, the outlet valve and the nerves to the stomach remain intact and, while the stomach is drastically reduced in size, its function is preserved.
In this procedure, which is one of the limiting methods, after laparoscopy, about 80% of the volume of the stomach is removed by a machine that performs incision and stitching and is removed from the abdomen. So by removing an area of the stomach that secretes hunger hormone (Ghrelin), the patient’s appetite will be normalized, and by eating a few tablespoons the patient will feel full, and because the above-mentioned hormone works against insulin, diabetes begins to regulate as it is removed and severely reduced a few days after surgery.
Among the benefits of this technique are easier surgical technique and less operative length compared to combined surgery and in patients whom can’t have combined surgeries because of diseases such as Crohn’s, Ulcerative Colitis or severe intra-abdominal adhesion due to previous surgery, this method is preferred.
Occasionally, in patients with excessive abdominal fat or fatty liver which causes the size of the liver to be too big, when the abdomen is entered, the surgeon is unable to perform combined procedures because of inability to change the location of the intestine and also inadequate vision so the surgery will have two stages. The first stage is a sleeve operation and after 8 months to a year and weight loss and improvement of the intra-abdominal anatomy, the second stage (converting slave to one of the combined surgeries) is done. However, in many cases the patient responds well to the first stage (gastric sleeve) and does not require a second stage.