Laparoscopic anti-reflux surgery for GERD may involve a procedure to reinforce the lower esophageal sphincter, called Nissen fundoplication. In this procedure, the surgeon wraps the top of the stomach around the lower esophagus after reducing the hiatal hernia, if present. This reinforces the lower esophageal sphincter, making it less likely that acid will back up in the esophagus.
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