Fundoplication is a surgical procedure used to treat stomach acid reflux. During fundoplication, the top part of your stomach — called the fundus — is folded and sewn around the lower esophageal sphincter, a muscular valve at the bottom of your esophagus. This reinforces the lower esophageal sphincter, making it less likely that acid will back up into the esophagus. If you have a hiatal hernia, it can be repaired at the same time. Your surgeon may also tighten the hiatus, the opening in your diaphragm through which the esophagus passes.
Last Updated Jan 24, 2020