Fundoplication is the standard surgical treatment for GERD. The purpose of the surgery is to reduce heartburn caused by acid reflux.
During the surgery, the upper part of the stomach (fundus) is gathered, wrapped and sutured (sewn) around the lower part of the esophagus. This allows the lower part of the esophagus to pass through a small tunnel made from the stomach muscle. This will help prevent acid reflux, and strengthen the valve between the esophagus and stomach, which helps stop acid from backing up into the esophagus.
Related Resources:
Sources:
"Heartburn Or Gastroesophageal Reflux Disease (GERD)" American College of Gastroenterology. 25 Nov 2007.
"Heartburn, Hiatal Hernia, and Gastroesophageal Reflux Disease (GERD)" NIH Publication No. 03 07-0882 May 2007. National Digestive Diseases Information Clearinghouse (NDDIC). 25 Nov 2007.

