Weight Loss Surgery Type 1. Gastric Bypass Surgery
The gastric bypass procedure is a type of bariatric surgery or weight loss
surgery designed to reduce your food intake if you have tried and failed to lose
weight through diet and exercise. People who have bypass operations generally lose two-thirds
of their excess weight within 2 years. There are two types of gastric bypass
operations :
1. Roux-en-Y gastric bypass (RGB)
 This operation is the
most common gastric bypass procedure performed in the U.S. First, a
small stomach pouch is created by stapling part of the stomach
together or by vertical banding. This limits how much food you can
eat. Next, a Y-shaped section of the small intestine is attached to
the pouch to allow food to bypass the duodenum as well as the first
portion of the jejunum.
This causes reduced calorie and nutrient
absorption. This procedure can now be done with a laparoscope (a
thin telescope-like instrument for viewing inside the abdomen) in
some people. This involves using small incisions and generally has a
more rapid recovery time.
2. Extensive gastric bypass (Biliopancreatic Diversion)
 In this more complicated gastric bypass operation, the lower portion of the
stomach is removed. The small pouch that remains is connected
directly to the final segment of the small intestine, thus
completely bypassing both the duodenum and jejunum.
Although this
procedure successfully promotes weight loss, it is not as widely
used because of the high risk for nutritional deficiencies.
 Next page for :
4 Risks for associated with gastric bypass surgery
Gastric bypass surgery recovery and aftercare
| 
