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Gastric Bypass Operations to Reduce Severe Clinical Obesity

Bypass lower stomach,duodenum jejunum, to reduce calorie intake
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Gastric Bypass Health Dangers | Stomach Bypass Research | BPD/DS

Gastric Bypass Operations

Stomach or gastric bypass surgery is a malabsorptive bariatric surgical operation during which the surgeon performs two basic procedures:

  • Reduces the size of the stomach either by using gastric staples (as in roux-en-y, biliopancreatic diversion, or duodenal switch bypass) or a gastric silastic ring (as in fobi pouch bypass).
  • Alters the anatomy of the digestive tract, so the food bypasses the first part of the small intestine, thus reducing the amount of calories (and nutrition) which can be absorbed. Some bypass surgeries (such as biliopancreatic diversion) bypass the duodenum and jejunum completely and connect the stomach directly to the ileum, the final section of the small intestine. Other operations (like roux-en-y) bypass less of the intestine thus permitting more calories and nutrients to be absorbed.

Gastric Bypass is Malabsorptive Surgery

Unlike less drastic bariatric procedures such as stomach banding which only reduce stomach-size, gastric bypass is designed to reduce absorption of calories. Hence it is commonly referred to as malabsorptive surgery.

Gastric Bypass and Nutritional Deficiency

Because many important nutrients (eg. iron and calcium) are absorbed in the bypassed section of the digestive system, nutritional deficiency is one of the main post-operative risks of gastric bypass operations. As a result, patients typically need to follow a lifelong program of nutritional supplementation to maintain good health.

Gastric Bypass Offers Significant Weight Loss

Stomach bypass surgery typically produces significant post-operative weight reduction, and is therefore a highly effective treatment for clinical or morbid obesity. Bypass patients typically lose 66 percent of their pre-operative excess weight within two years. In one patient study (125 subjects), excess weight loss of 74 percent at one year, 78 percent at two years, 81 percent at three years, 84 percent at four years, and 91 percent at five years was achieved. Malabsorption-type surgeries typically are more effective for weight loss than restrictive procedures like gastric banding.

Post-Operative Patient Compliance Essential

Like all types of bariatric surgery, gastric bypass can only achieve successful weight reduction if the patient adheres to the eating and exercise guidelines issued by their weight loss surgeon. Even though malabsorptive surgery like gastric bypass is more compulsive than gastric banding, thus making it more difficult for patients to "cheat", some patients are unable or unwilling to change their diet or fitness levels. In such cases, weight loss is only temporary and much of it will be regained.

Examples of Gastric Bypass Centers

Atlanta - California - Chicago - Dallas - Florida
Houston - Illinois - Michigan - New Jersey
New York - NYC - Ohio - San Diego - Texas

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Laparoscopic or open bariatric surgery, such as gastric banding or bypass is not an easy solution to morbid obesity and weight loss. It is a serious surgical procedure, involving health risks. To produce lasting weight loss it requires a long-term patient commitment to eating a healthy diet and following a regular program of physical exercise. Life-long use of nutritional supplements may also be necessary. So, before deciding, discuss your options fully with your doctor. © 2003-2017 Bariatric-Surgery.Info - Terms - Contact - Information - Resources