Impaired postoperative EGJ relaxation as a determinant of post laparoscopic fundoplication dysphagia: a study with high-resolution manometry before and after surgery.

Background: Laparoscopic fundoplication (FP) reduces gastroesophageal reflux (GER) efficiently. Dysphagia is its main complication, but no clear data have been published in literature to evaluate risk factors associated with it. The goal of this retrospective study was to identify factors associated with dysphagia occurring after FP for GER disease, with high-resolution manometry (HRM) performed before and after surgery.