胃食管反流性咳嗽( gastroesophageal reflux-induced chronic cough , GERC )是以慢性咳嗽为唯一或突出症状的一种特殊类型胃食管反流病( gastroesophageal reflux disease , GERD ) [ 1 ] ,是慢性咳嗽的常见病因[ 2 ] 。国外文献显示GERC约占慢性咳嗽的10% ~ 40% [ 2 ] ,国内则报道占慢性咳嗽的4.6% ~ 20.3% [ 3 - 6 ] 。分别代表反流事件并非偶然因素引起咳嗽的概率、反流相关咳嗽 ......