Gastric Band Weight-Loss Surgery Can Boost Reflux

Obese patients with GERD may choose gastric bypass instead, experts say

By Alan Mozes
HealthDay Reporter

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FRIDAY, Aug. 22 (HealthDay News) -- Gastric banding, a surgical procedure designed to combat obesity, appears to boost the risk for developing or exacerbating symptoms of gastro-esophageal reflux disease (GERD).

The finding stems from a review of research on the link between obesity and reflux. The experts concluded that gastric bypass may help reduce GERD, but gastric banding does not -- a finding patients may want to consider when choosing one form of weight-loss surgery over another.

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"For people with obesity and reflux together, the gastric bypass procedure appears to be effective not only for weight loss, but also for the control of reflux symptoms," concluded the review's lead author, Dr. Frank K. Friedenberg, an associate professor in the section of gastroenterology at Temple University School of Medicine, Philadelphia. "Because in this case, most of the acid from the stomach is being partitioned away, so it doesn't have exposure to the esophagus," he explained.

"However, with gastric banding, the problem is that you actually create a pocket which acid has the ability to fill from the remainder portion of the stomach," Friedenberg said. "And this acid can just sit there above the band, and make its way back up to the esophagus. This can cause reflux disease to develop, or make it worse than it had been if it was a problem before the procedure."

Friedenberg and his colleagues published their findings in the August issue of The American Journal of Gastroenterology.

Gastroesophageal reflux disease (GERD) occurs when a muscle at the end of the esophagus does not close properly, allowing irritating stomach contents to leak back into the esophagus. Symptoms include heartburn and acid indigestion.

According to the new analysis, involving numerous studies, a high body mass index (BMI) and/or high amounts of abdominal fat does appear to raise the odds for significant acid reflux.

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