Evidence-based recommendations on laparoscopic insertion of a magnetic ring for gastro-oesophageal reflux disease. This involves placing a ring of beads outside of the food pipe, just above the stomach. Magnets inside the beads hold them together to keep the food pipe closed but are weak enough to move apart to allow food or liquid to be swallowed. The aim is to prevent acid reflux. Is this guidance up to date? Next review: this guidance will be reviewed if there is new evidence or safety concerns.