Longer-term outcomes of gastroesophageal reflux disease treated with magnetic sphincter augmentation.

Abstract

Surgical intervention for gastroesophageal reflux disease (GERD) has historically been limited to fundoplication. Magnetic sphincter augmentation (MSA) is a less invasive alternative that was introduced 15 years ago, and it may have a superior side-effect profile. To date, however, there has been just a single published study reporting outcomes in a UK population. This study reports quality-of-life (QOL) outcomes and antacid use in patients undergoing MSA, with a particular focus on postoperative symptoms and those with severe reflux. A single-center cohort study was carried out to assess the QOL outcomes and report long-term safety outcomes in patients undergoing MSA. GERD-health-related quality of life (GERD-HRQL) and Reflux Symptom Index (RSI) scores were collected preoperatively, and immediately postoperatively, at 1-, 2-, 3-, and 5-year follow-up time points. All patients underwent preoperative esophagogastroduodenoscopy, impedance, and manometry. Two hundred and two patients underwent laparoscopic MSA over 9 years. The median preoperative GERD-HRQL score was 31, and the median RSI score was 17. There was a reduction in all scores from preoperative values to each time point, which was sustained at 5-year follow-up; 13% of patients had a preoperative DeMeester score of >50, and their median preoperative GERD-HRQL and RSI scores were 32 and 15.5, respectively. These were reduced to 0 at the most recent follow-up. There was a significant reduction in antacid use at all postoperative time points. Postoperative dilatation was necessary in 7.4% of patients, and the device was removed in 1.4%. Erosion occurred in no patients. MSA is safe and effective at reducing symptom burden and improving QOL scores in patients with both esophageal and laryngopharyngeal symptoms, including those with severe reflux.