Gastric Bypass Operations to Reduce Severe Clinical Obesity
Bypass lower stomach,duodenum jejunum,
to reduce calorie intake
Risks & Benefits | Gastric Bypass
Surgery | Biliopancreatic
Diversion | Roux-en-Y
Gastric Bypass Operations
Stomach or gastric bypass surgery is a malabsorptive bariatric surgical operation during which the surgeon performs two basic procedures:
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
BARIATRIC SURGERY INFORMATION