Weight Loss Surgery Information & Options
Today's bariatric surgeons have access to a substantial body of clinical data to help them determine which weight loss surgeries should be used and why. Today, there are two basic approaches that weight loss surgery takes to achieve change:
The theory is simple: When you feel full, you are more likely to have reduced feelings of hunger and will no longer feel deprived. Restrictive weight loss surgery works by reducing the amount of food consumed at one time. It does not, however, interfere with the normal digestion of food. Some examples are:
Swedish Adjustable Gastric Banding SAGB
A low-pressure soft band is placed around the upper most part of the stomach. The gastric band forms the stomach into two sections, with a small opening between the sections allowing food to pass through. Food collects quickly in the small upper section causing patients to feel full faster and eat less. More information and animations about gastric banding SAGB...
The sleeve gastrectomy is a restrictive procedure that limits the amount of food you can eat by reducing the size of your stomach. During this procedure a thin vertical sleeve of stomach is created using a surgical stapling device via keyhole surgery. Click here to read more
Malabsorptive procedures alter digestion, thus causing the food to be poorly digested and incompletely absorbed so that it is eliminated in the stool. In addition to restriction, these techniques involve the use of surgical staples to create a bypass of the small intestine, thus limiting the absorption of calories. Some examples are:
Biliopancreatic Diversion BPD
BPD removes approximately 3/4 of the stomach to produce both restriction of food intake and reduction of acid output. The small intestine is then divided with one end attached to the stomach pouch to create what is called an "alimentary limb." All the food moves through this segment, however, not much is absorbed. More information and illustrations about Biliopancreatic diversion BPD.
Gastric Bypass Roux-en-Y RYGBP
In this procedure, stapling creates a small (15 to 20cc) stomach pouch. The remainder of the stomach is not removed, but is completely stapled shut and divided from the stomach pouch. The outlet from this newly formed pouch empties directly into the lower portion of the jejunum, thus bypassing calorie absorption. More information and illustrations of gastric bypass Roux-en-Y.