Laparoscopic Magnetic Sphincter Augmentation for Symptomatic Gastroesophageal Reflux After Roux-en-Y Gastric Bypass: Outcome in 13 Patients

Abstract

Abstract Background Gastroesophageal reflux disease (GERD) represents a common burden after bariatric procedures, particularly after laparoscopic sleeve gastrectomy (LSG). While GERD after LSG is usually treated with conversion to Roux-en-Y gastric bypass (RYGB), there are limited surgical options to manage medically refractory GERD after RYGB due to the altered anatomy. The use of magnetic sphincter augmentation (MSA) is one option, but the literature on this topic remains scarce. Aims To present mid- to long-term outcome of patients treated with MSA for GERD after RYGB. Methods We performed a retrospective single-centre analysis of data from patients who underwent laparoscopic MSA for GERD between August 2015 and December 2023, and who had previously RYGB. Outcomes were persistence/recurrence of GERD symptoms, use of proton pump inhibitors (PPIs) and need for redo surgery related to MSA complications or recurrent GERD. Results Of the 312 MSA procedures performed for GERD, we identified 13 patients who underwent laparoscopic MSA after RYGB. There were 10 female patients (77%), with mean age of 42.6 ± 13.7 years and mean BMI of 27.2 ± 2.7 kg/m2. Seven patients (54%) had de novo GERD. All MSA procedures included hiatoplasty. Median follow-up was 40 months (range 7-72) and median time between RYGB and MSA placement was 42 months (range 8-242). One patient (8%) required endoscopic dilatation due to persistent postoperative dysphagia. Two patients (15%) needed redo surgery: 1 redo hiatoplasty with adhaesiolysis and 1 conversion to esophagojejunostomy with implant removal. There was no erosion or migration of the MSA implant. Overall satisfactory control of reflux with discontinuation or reduction of PPIs was achieved in 9 patients (69%). Conclusion The use of MSA to manage refractory GERD after RYGB is a safe option and was effective in 69% of patients but is limited to patients with intact oesophageal motility.