Gastric Bypass - Facts & Remedies

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Gastric bypass

Gastric bypass surgery is also called stomach stapling or bariatric (weight-loss) surgery.
Surgery procedures involves dividing the stomach into a upper and bottom section using staples (similar to stitches) or banding. The upper section will become a small pouch that will be attached to the small intestine, bypassing the bottom section of the stomach and the duodenum.
The purpose of this surgery is to reduce the size of the stomach so that food intake can be reduced - smaller stomach equals lesser food intake equals lesser calorie absorption.
Bypass surgery must be considered as a last option, only if a person is more than 100 pounds overweight and when dieting and exercise have failed or when the weight problem is the cause of a life-threatening health condition.

Roux-en-Y gastric bypass (RGB)
- • Also called Roux-en-Y anastomosis or Roux-en-Y gastrojejunostomy.
- • By stapling part of the stomach together or by vertical banding, a small pouch is first created. Then, a Y-shaped section of the small intestine is attached to the pouch to allow food to bypass the duodenum as well as the front segment of the jejunum.
- • This type of gastric bypass operation is most commonly performed.
Extensive gastric bypass (biliopancreatic diversion)
- • A procedure that removes portions of the stomach and connects the small pouch directly to the final section of the small intestine, bypassing the duodenum and jejunum.
- • This type of gastric bypass operation is not widely performed because of the high risk of nutritional deficiencies.

The bypass route may cause contents in the stomach to move out of the stomach too quickly through the small intestine which can cause faintness, weakness, nausea, sweating and sometimes diarrhea after eating.
The pouch may stretch and return to its original size.
The staples and the band can break down and lose their grip.
Leakage of stomach contents into the abdomen. This is dangerous because the stomach acid can eat away other organs.
Nutritional deficiencies.
Suture tears and leaks.
A person undergoing gastric bypass surgery is at risk of pneumonia, infection and pulmonary embolism during surgery.

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