目的 :探讨内镜直视下置放记忆合金治疗各种良恶性食管狭窄的适应症 ,疗效及安全性。方法 :2 0例癌性及非恶性食管狭窄患者 ,先以萨氏 (Savary)硅胶探条扩张器扩至 9～ 12mm ,在导丝引导下置入支架。均采用国产的记忆合金支架及专用推送器 ,整个过程仅在内镜直视下进行 ,无需X线透视。结果 :2 4例次 (有 4例患者先后置入两个支架 )均一次置入成功 ,成功率 10 0 %。所有支架定位准确 ,位置最高者距门齿仅 15cm。支架置入成功后 ,患者即可进食 ,其中 4例食管气管瘘再无呛咳现象。本组中无出现穿孔 ,大量出血 ,支架脱落及心血管系统意外等严重的并发症。结论 :内镜直视下置入记忆合金治疗食管狭窄 ,具有适应症广 ,近期疗效肯定 ,安全性高等特点。对于晚期食管癌 ,尤其合并食管气管瘘患者 ,是一种有效的姑息疗法 Objective: To investigate the indications, curative effects and safety of allogeneic benign and malignant esophageal stenosis under the condition of endoscopic fixation. METHODS: Twenty patients with cancerous and non-malignant esophageal stenosis were initially expanded to 9-12 mm with a Savary silica gel probe dilator and placed into a stent under guidewire. Domestic use of memory alloy stent and special pusher, the whole process only under endoscopic direct vision, without X-ray. Results: Twenty-four cases (four cases were placed in two stents) were successfully implanted one time, with a success rate of 100%. All stent positioning accuracy, the highest position from the incisors only 15cm. Stent into the success, the patient can eat, of which 4 cases of esophageal tracheal fistula no more cough phenomenon. In this group, no serious complications such as perforation, massive bleeding, stent shedding and cardiovascular system accidents occur. Conclusion: Under endoscopic surgery, the memory alloy is put into the treatment of esophageal stenosis, which has the advantages of wide indications, positive curative effect and high safety. For advanced esophageal cancer, especially in patients with esophageal fistula, is an effective palliative treatment