Bariatric Surgery - Classification of Surgical Procedures - Predominantly Restrictive Procedures - Sleeve Gastrectomy

Sleeve Gastrectomy

Sleeve gastrectomy, or gastric sleeve, is a surgical weight-loss procedure in which the stomach is reduced to about 15% of its original size, by surgical removal of a large portion of the stomach, following the major curve. The open edges are then attached together (typically with surgical staples, sutures, or both) to leave the stomach shaped more like a tube, or a sleeve, with a banana shape. The procedure permanently reduces the size of the stomach. The procedure is performed laparoscopically and is not reversible.

This combined approach has tremendously decreased the risk of weight loss surgery for specific groups of patients, even when the risk of the two surgeries is added. Most patients can expect to lose 30 to 50% of their excess body weight over a 6–12 month period with the sleeve gastrectomy alone. The timing of the second procedure will vary according to the degree of weight loss, typically 6 – 18 months.

  • Stomach volume is reduced, but it tends to function normally so most food items can be consumed in small amounts.
  • Removes the portion of the stomach that produces the hormones that stimulates hunger (Ghrelin), although the durability of this removal has yet to be confirmed.
  • Dumping syndrome is less likely due to the preservation of the pylorus (although dumping can occur anytime stomach surgery takes place).
  • Minimizes the chance of an ulcer occurring.
  • By avoiding the intestinal bypass, the chance of intestinal obstruction (blockage), anemia, osteoporosis, protein deficiency and vitamin deficiency are significantly reduced.
  • Very effective as a first stage procedure for high BMI patients (BMI >55 kg/m2).
  • Limited results appear promising as a single stage procedure for low BMI patients (BMI 35–45 kg/m2).
  • Appealing option for people with existing anemia, Crohn's disease, irritable bowel syndrome, and numerous other conditions that make them too high risk for intestinal bypass procedures.

Read more about this topic:  Bariatric Surgery, Classification of Surgical Procedures, Predominantly Restrictive Procedures

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