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Vertical sleeve gastrectomy , advantages and disadvantages.
In this procedure a cut is made vertically and the larger part of the stomach – up to 85% of its volume – is removed from the body. The remainder is closed with staples to create a new stomach that is now in the shape of a tube. The procedure preserves both sphincters at the two ends of the stomach and therefore has minimum effect on the functioning of the digestive process. This reduces the risk of malabsorptive complications commonly associated with intestinal bypass. The procedure is irreversible.
Vertical sleeve gastrectomy procedure is gaining more and more popularity thanks to its simplicity and good results on initial weight loss. However, due to the lack of long-term data, it is yet to be endorsed by bariatric surgery societies and is not covered by some insurance companies.
Adjustable gastric band or Lap band, advantages and disadvantages.
In this procedure an inflatable silicon band is placed around the top of the stomach to create a small stomach pouch. The band is connected to a port placed under the skin of the abdomen. Through this port, a saline solution is injected to adjust the diameter of the band and thus making the passage between the pouch and the lower part of the stomach smaller or larger according to the needs of the patient.
During a meal, the pouch is filled up quickly with a small amount of food and releases it slowly into the lower part of the stomach due to the restriction by the band. As the pouch is full, it gives the feeling of satiety or fullness and helps to stop the patient from further eating. Slow passage of the food makes the patient feel full for a longer period of time and thus reduces the amount of food intake.
As the procedure involves no cutting or stapling of the stomach, it is minimally invasive and reversible. The surgery can be performed laparoscopically through small incisions with the aid of a camera. Recovery time is significantly shortened compared to gastric bypass procedures. Also, as there is no intestinal bypass, the risks of nutritional deficiencies, dumping syndrome and other complications associated with it are significantly reduced.
In terms of weight loss efficiency, however, patients who undergo gastric lap band surgery typically lose less weight than those who have had gastric bypass procedures.
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