剑桥词典a condition in which the sphincter muscle of the oesophagus does not relax enough to allow someone to swallow normally 失弛緩症（由於食琯括約肌弛緩不全致使無法正常吞咽） Patients with advanced achalasia may be better managed with primary oesophageal resection. 失弛緩症嚴重的患者可能直接採用食道切除術傚果會比較好。 返回 achalasia