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INTRODUCTION Laparoscopic fundoplication is the treatment of severe and refractory gastroesophageal reflux disease (GERD). It induces dysphagia in 5 % - 10 % owing to a tight valve ± esophageal motility disorders (EMD), with challenging management. We assessed the first case series assessing peroral endoscopic myotomy (POEM) in such a situation. METHODS A retrospective case series including eight patients with severe dysphagia after laparoscopic fundoplication who were treated by POEM. They were assessed clinically by Eckardt and Mell