Many operations have been developed to create weight loss. Gastric bypass and lap-band surgery have proven to be effective treatment for severe obesity, by allowing you to maintain a healthier diet and giving you the energy to exercise, which in turn leads to a healthier sustainable lifestyle.
Gastric Bypass Surgery
The most popular and most tested is the Roux-en-Y gastric bypass. This involves making a thumb size pouch out of the stomach and connecting the intestines to the new, smaller stomach. The intestines are reconnected down-stream so that less nutrient absorption occurs.
This operation has been around for more than 30 years and reliably produces major weight loss that can be sustained for decades.
A newer approach is the adjustable gastric band. This is a plastic ring placed around the top of the stomach to limit the amount and rate of food consumption. Adjusting the tightness of the band is a simple office procedure, typically done four to five times in the first year. In general, there is less weight loss with this approach, but it is less invasive and possibly safer.
Minimally Invasive Weight Loss Surgery
Both of these procedures are performed laparoscopically through several small incisions and typically only require one or two nights in the hospital.
In deciding to have surgery, one must weigh the risks of the procedure against the risk of not losing weight. Several large scientific studies have found people undergoing the surgery are more likely to be alive in five years then similar obese people who have not.