How Effective is Gastric Bypass for Weight Loss?
Weight Reduction Comparison: Stomach Bypass Versus Banding
| Bariatric Surgery information How Effective is Gastric Bypass for Weight Loss? |
Weight Reduction Comparison: Stomach Bypass Versus Banding |
Guide to Weight Loss Surgery - Research Into Gastric Reduction Surgery |
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How Effective is Gastric Bypass for Weight Loss? Gastric bypass results in weight loss of approximately 33% at 2 years and 25% at 8 years (strength of recommendation [SOR]: B, based on a cohort study). Gastric bypass is one type of bariatric surgery, which also includes gastroplasty and gastric banding procedures. Bypass More Effective Than Banding These bariatric procedures all can produce enough weight loss to measurably improve health, but they differ in the amount of long-term weight loss, as well as side effects, which can be serious. Gastric bypass is more effective than gastroplasty for weight loss and is associated with fewer revisions, but it has more side effects (SOR: A, based on a systematic review). Limited evidence suggests that gastric bypass produces more weight loss than gastric banding (SOR: B, based on a cohort study). Improvement in Comorbid Conditions Bariatric operations, including gastric bypass, improve conditions comorbid with obesity, including diabetes, abnormal lipid profiles, and low quality-of-life scores. It decreases the incidence of hypertension at 2 years after surgery, but whether this effect is sustained is unclear (SOR: B, based on a cohort study and multiple case series). Bariatric surgery also improves obstructive sleep apnea, obesity hypoventilation syndrome, menstrual irregularity, and female urinary stress incontinence (SOR: C, based on multiple case series). Bariatric surgery has a complication rate of 13% and a mortality rate of 0.2% (SOR: B, based on 1 cohort study). Authors: Source: Gastric Bypass Surgery Information |