![]() The reason for this is because GI tract anatomy remains more normal. The sleeve gastrectomy is associated with fewer long-term potential complications than the gastric bypass and the LAP-BAND®. Oliak’s blog post Weight Loss Surgery Changes The Body Weight Set Point. This is what gives patients the ability to maintain weight loss long-term. The sleeve gastrectomy (like the gastric bypass) changes this biology, resulting in the body accepting a new lower weight as the set point. Normally, the body will react to weight loss by increasing hunger and cravings, and decreasing metabolic rate to cause weight regain back up to the “set point” weight. Second, the operation changes how the biology that regulates body weight works. The sleeve gastrectomy causes weight loss by doing two things.įirst, the small stomach restricts food intake by causing more satiety with less food. Disclaimer – individual patient results vary. This outcome is a typical weight loss outcome after sleeve gastrectomy. This patient lost 90 pounds after sleeve gastrectomy, which was 73% of her excess weight. To visualize what 70% of excess weight loss looks like, see photos below: ![]() This is similar to the average weight loss after gastric bypass, and significantly better than the average weight loss after the LAP-BAND®. The sleeve volume is made to be overly small initially, because over time the sleeve will expand. Studies show that the stomach will approximately double in volume over time, so a 3-4 ounce sleeve will eventually become approximately 6-8 ounces in volume.Ī couple important points to make about the sleeve that will be important to the discussion below: 1) the stomach pouch is large (3-4 ounces) compared to the gastric bypass pouch (1-2 ounce) and LAP-BAND® pouch (1/2 ounce), and 2) stomach emptying occurs through the normal muscular sphincter at the bottom of the stomach rather than through the very small fixed diameter openings at the bottom of the gastric bypass and LAP-BAND® stomach pouches.Īverage weight loss after sleeve gastrectomy is typically reported to be about 60-70% of excess weight. This is done by dividing across the stomach like shown in the diagram, and removing the large excluded portion of the stomach. The sleeve gastrectomy operation involves laparoscopically reducing the size of the stomach from approximately 30-40 ounces in volume to approximately 3-4 ounces in volume. I will discuss each of these advantages in more detail, but first let’s review the sleeve gastrectomy – what it is and how it works. A more normal postoperative eating experience.Less long-term risk than with gastric bypass or gastric banding.Excellent weight loss outcomes, similar to gastric bypass. ![]() In my opinion the advantages of sleeve gastrectomy are as follows: This fast rise in popularity suggests that the sleeve gastrectomy operation has significant advantages over the alternative operations, the gastric bypass and gastric banding. It has remained in first place ever since. In just three short years, the sleeve went from a distant third place in popularity, significantly behind both the gastric bypass and LAP-BAND®, to first place. In 2010 <10% of weight loss operations were sleeve gastrectomy operations.
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