Whats nissen fundoplication?

Acid reflux surgery: A nissen fundoplication is a surgery for gerd or acid reflux. It is usually performed laparoscopically. The main components of the surgery are repair of a hiatal hernia, if present, followed by wrapping of the upper part of the stomach (the fundus) around the esophagus. This repairs the valve between the esophagus and stomach and prevents reflux.

Antireflux operation: Nissen fundoplication is a commonly performed operation to prevent/decrease significant gastroesophageal reflux. The top (fundus) of the stomach is fully wrapped around the bottom of the swallowing tube (esophagus) in the abdomen to make a better valve there. It can be performed as an open operation via upper midline or left subcostal incision, or laparoscopically with 4 to 5 small trocar wounds.