自 196 9年 Dotter首次报道内支架 (Stent)的实验研究以来 ,金属内支架治疗食管狭窄这一技术便很快应用到食管狭窄伴吞咽困难的治疗上 ,迅速成为当前治疗的热点 ,并代替了部分手术。特别是对失去手术时机的病人尤为实用 ,可以有效地改善临床症状 ,提高生活质量 ,延长生存期。本 Since Dotter first reported the experimental study of Stent in 196, the technique of metal stents for the treatment of esophageal stenosis has been rapidly applied to the treatment of esophageal stenosis with dysphagia, and has quickly become a hotspot of current treatment, replacing it. Partial surgery. In particular, it is particularly useful for patients who lose the timing of surgery and can effectively improve clinical symptoms, improve quality of life, and prolong survival. this