Fundoplication is a surgical procedure to treat gastroesophageal reflux disease (GERD) and hiatus hernia. In GERD it is usually performed when medical therapy has failed, but with paraesophageal hiatus hernia, it is the first-line procedure. Partial fundoplications known as a Dor fundoplication or Toupet fundoplication may accompany surgery for achalasia.Fundoplication, the gastric fundus (upper part) of the stomach is wrapped, or plicated, around the inferior part of the esophagus and stitched in place, reinforcing the closing function of the lower esophageal sphincter: Whenever the stomach contracts, it also closes off the esophagus instead of squeezing stomach acids into it. This prevents the reflux of gastric acid (in GERD). A fundoplication can also prevent hiatal hernia, in which the fundus slides up through the enlarged esophageal hiatus of the diaphragm.
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