ConclusionModified laparoscopic surgery combined with choledochoscopy laparoscopic surgery for patients with extrahepatic biliary tract calculi has good curative effect，which can shorten operation time and suture time，reduce complications，and thus is worthy of clinical application.

    【Key words】modified laparoscopy；choledochoscopy；extrahepatic biliary tract calculi

    肝外胆道系统结石是一种临床上常见的多发病症，患者的胆管系统出现功能障碍，结石不能顺畅地排入肠内，胆管出现堵塞，从而导致胆管中毒感染，患者全身出现中毒症状[1～2]。常发于31～51岁人群，患者伴有腹痛、恶心、呕吐等病症，严重时会出现意识模糊或者休克症状，目前本病的治疗方法还存在许多争议，腹腔镜联合胆道镜手术在治疗肝外胆道系统结石上有很好的效果，然而该方法也有一些不足之处 ......