Methods : Of 30 cases collected in the study, 10 were complicated esophago tracheal fistula and 2 esophago mediastinal fistula, Ni Ti heat memory binary alloy stents and stainless steel self expanding Z stents were used in the treatment of esophageal stricture and complicated fistula. 方法:采用镍钛记忆合金支架与不锈钢自膨式Z型支架治疗食管狭窄30例;其中合并食管气管瘘10例、食管纵隔瘘2例。