Peroral endoscopic myotomy for the treatment of achalasia after failed pneumatic dilation

POEM is a rescue endoscopic therapy for patients who had previously failed surgical or endoscopic treatment. However, data regarding its effectiveness after failed pneumatic dilation (PD) and its long-term effects are limited. We aimed to retrospectively investigate the long-term outcomes in patients who had undergone POEM after failed PD.Data from 66 achalasia patients with a 2-year follow-up period were analyzed. Intraprocedural events were...