Precisely How Does The Gastric Sleeve Form Of Weight Loss Surgery Work?
With obesity continuing to increase in many Western countries morbid obesity surgery has become an everyday type of surgery in a large number of medical facilities.
The sleeve gastrectomy is a restrictive type of weight loss surgery in which roughly 85% of the stomach is removed leaving a sleeve shaped stomach with a vastly reduced capacity of somewhere between 60 and 150 cc. As distinct from many other forms of obesity surgery, the outlet valve and nerves to the stomach are left in place and, though the stomach is radically reduced in volume, its function is preserved. once again, unlike other forms of weight loss surgery like the classical Roux-en-Y gastric bypass the sleeve gastrectomy cannot be reversed.
As the newly created stomach continues to function as normal there are many fewer restrictions on the foods which patients can consume after surgery, even though the quantity of food eaten will be greatly reduced. This is seen by many patients as being one of the great advantages of the vertical gastrectomy, as well as the fact that the removal of most of the stomach also results in the effective elimination of hormones which are produced in the stomach and which stimulate hunger.
probably the greatest advantage of the vertical gastrectomy lies in the fact that it does not involve any bypass of the intestines so that patients do not therefore suffer the complications of intestinal bypass such as vitamin deficiency, anemia, osteoporosis and protein deficiency. It also means that it is a suitable type of surgery for patients who already suffer from Crohn's disease, anemia and a variety of other conditions which would put them at risk for intestinal bypass surgery.
Lastly, it is one of the few forms of weight loss surgery which can be done laparoscopically in individuals who are extremely overweight.
Perhaps the chief disadvantage of the sleeve gastrectomy is that it does not always lead to the loss in weight which people want and may even result in weight regain in the long term. This is indeed the case with any type of purely restrictive weight loss surgery although it is possibly especially true in the case of the vertical sleeve gastrectomy.
As the procedure requires stapling of the stomach individuals do run the risk from leakage and of other complications which are directly related to stapling. Furthermore, as with any surgery, individuals run the risk of additional complications such as post-operative bleeding, small bowel obstruction, pneumonia and even death. The chance of encountering these complications is nevertheless very small and is in the region of about 0.5 and 1%. This said, the chance of dying as a result of this type of operation at about 0 .25% is very small indeed.
In general the vertical gastrectomy is best suited to people who are either extremely overweight or whose medical condition rules out other forms of weight loss surgery. In the case of the first category the vertical gastrectomy would normally form the first of a two-part plan of weight loss, with additional bariatric surgery being performed once the person's weight has dropped sufficiently to permit other forms of surgery to be done.
GastricBypassFacts.info provides detailed information on the vertical sleeve gastrectomy and the sleeve gastrectomy with duodenal switch including detail of the duodenum function and the role of the jejunum tubes
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