BACKGROUND: Transoral incisionless fundoplication (TIF) with Medigus Ultrasonic Surgical Endostapler (MUSE) is a new intervention for treatment of gastro-esophageal reflux disease (GERD). We aimed at assessing the clinical, functional, and endoscopic effects of TIF by MUSE. METHODS: Forty-six patients underwent TIF. Proton pump inhibitor (PPI) consumption, GERD-health-related quality of life (HRQL) and reflux symptom index (RSI) questionnaires, upper gastrointestinal (GI) endoscopy, esophageal 24-h pH-impedance recording, and high-resolution manometry (HRM) were done before TIF and scheduled 6 and 12 months later (HRM only at 6-month). PPI consumption and symptoms were then assessed yearly. Data up to 3 years are reported in this study (PP- and ITT-analysis). RESULTS: TIF was successfully performed in 45/46 patients; in one patient esophageal intubation was impossible. Perforation occurred in two cases. One patient required surgery within 6 months. Clinical follow-up was available for 42 patients at 6 months and 1 year, 35 patients at 2 years, and 31 patients at 3 years. At 1, 2, and 3 years, PPI consumption was stopped, respectively, in 64.3%, 62.9%, and 74.2% of cases (ITT-analysis: 58.7%, 56.4%, and 65.7%). GERD-HRQL and RSI scores decreased at least 50%, respectively, in 71.5% and 76.2%, 71.4% and 68.6%, and 67.7% of cases (ITT-analysis: 65.2% and 69.6%, 64.1% and 61.5%, and 60%). A significant improvement of both scores was observed up to 3 years. 6-month and 1-year functional follow-up were possible in 31 and 20 patients. HRM showed significant increase of the median lower esophageal sphincter length and rate of peristaltic waves. Esophageal pH-impedance recording found significantly fewer acid, proximal and total refluxes, and percentage of esophageal pH < 4 total time at 6 months, but not at 1 year. CONCLUSION: TIF by MUSE significantly improved symptoms and PPIs consumption up to 3 years. However, esophagitis still persisted in one-third of cases at 1 year and functional improvement at 6 months was not confirmed at 1 year. Severe complications requiring surgery occurred in two cases. CLINICALTRIALS: GOV: ID: NCT03669874.
BACKGROUND: Transoral incisionless fundoplication (TIF) with Medigus Ultrasonic Surgical Endostapler (MUSE) is a new intervention for treatment of gastro-esophageal reflux disease (GERD). We aimed at assessing the clinical, functional, and endoscopic effects of TIF by MUSE. METHODS: Forty-six patients underwent TIF. Proton pump inhibitor (PPI) consumption, GERD-health-related quality of life (HRQL) and reflux symptom index (RSI) questionnaires, upper gastrointestinal (GI) endoscopy, esophageal 24-h pH-impedance recording, and high-resolution manometry (HRM) were done before TIF and scheduled 6 and 12 months later (HRM only at 6-month). PPI consumption and symptoms were then assessed yearly. Data up to 3 years are reported in this study (PP- and ITT-analysis). RESULTS: TIF was successfully performed in 45/46 patients; in one patient esophageal intubation was impossible. Perforation occurred in two cases. One patient required surgery within 6 months. Clinical follow-up was available for 42 patients at 6 months and 1 year, 35 patients at 2 years, and 31 patients at 3 years. At 1, 2, and 3 years, PPI consumption was stopped, respectively, in 64.3%, 62.9%, and 74.2% of cases (ITT-analysis: 58.7%, 56.4%, and 65.7%). GERD-HRQL and RSI scores decreased at least 50%, respectively, in 71.5% and 76.2%, 71.4% and 68.6%, and 67.7% of cases (ITT-analysis: 65.2% and 69.6%, 64.1% and 61.5%, and 60%). A significant improvement of both scores was observed up to 3 years. 6-month and 1-year functional follow-up were possible in 31 and 20 patients. HRM showed significant increase of the median lower esophageal sphincter length and rate of peristaltic waves. Esophageal pH-impedance recording found significantly fewer acid, proximal and total refluxes, and percentage of esophageal pH < 4 total time at 6 months, but not at 1 year. CONCLUSION: TIF by MUSE significantly improved symptoms and PPIs consumption up to 3 years. However, esophagitis still persisted in one-third of cases at 1 year and functional improvement at 6 months was not confirmed at 1 year. Severe complications requiring surgery occurred in two cases. CLINICALTRIALS: GOV: ID: NCT03669874.
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