Bariatric operations are major gastrointestinal procedures which alter the capacity and/or the anatomy of the digestive system. These treatments are intended for those living with morbid obesity and operate by limiting the amount of food a person consumes.
There are three basic approaches to weight loss surgery: combined restrictive and malabsorptive, restrictive and malabsorptive.
Restrictive with Malabsorptive
This procedure restricts both food intake and the amount of calories and nutrients the body absorbs. In addition to creating a small gastric pouch, the surgery disrupts the body's normal digestive process. As a result, food bypasses a large part of the stomach and some of the small intestine. The Roux-en-y gastric bypass would be an example of this type of procedure.
Bands or staples are used to section off a part of the stomach, creating a pouch. Because this stomach pouch is so small, the amount of food one can eat is limited. Food continues to be digested through the normal digestive and absorption process. Most restrictive procedures involve the use of a polymeric silicone ring or mesh band around the stomach. This band provides stability by not allowing the pouch outlet to expand. The LAP-BAND and REALIZE adjustable gastric bands are examples of restrictives procedures.
Malabsorptive procedures, such as the Biliopancreatic Diversion (BPD) techniques, involve rearrangement of the small intestine to decrease the functional length or efficiency of the intestinal mucosa for nutrient absorption. Malabsorptive procedures restrict both food intake and the amount of calories and nutrients the body absorbs.
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For more information about medical weight loss at Rex Healthcare, call (919) 784-SLIM or 1-877-DOWNLBS.