(1) Division of Gastroenterology, Department of Medicine, Nippon Medical School, Sendagi 1-1-5, Bunkyo-ku, Tokyo 113-8603, Japan;(2) Department of Surgery, Nippon Medical School, Tokyo, Japan;
Abstract:
Objective
Pneumatic dilatation (PD) has been widely used in the treatment of primary achalasia. The aim of this study was to evaluate the effectiveness of PD and its predictive factors in Japanese patients with primary achalasia.