Outcomes of pneumatic dilation in achalasia: Extended follow-up of more than 25 years with a focus on manometric subtypes.

Background And Aim: Pneumatic dilation (PD) is the most popular nonsurgical treatment for achalasia. This study investigated predicting factors, including manometric subtypes for symptom recurrence in the long term, in patients with achalasia treated with a single PD.

Methods: Between 1983 and 2013, a total of 107 patients were treated initially with a single PD and included in this longitudinal cohort study.