目的 观察结肠镜下金属支架置入术治疗结直肠癌梗阻的疗效。方法 回顾性分析2012年9月至2015年7月，在X线透视下，经结肠镜放置金属支架治疗结直肠癌梗阻患者27例，男性17例，女性10例，平均年龄65.8岁。其中乙状结肠癌17例，降结肠癌6，直肠癌3例，横结肠癌1例。结果27例患者中25例放置支架成功，成功率92.6%，术后1天梗阻症状缓解或消失，无重大并发症。22例金属支架术后5-12天行一期肿瘤切除，还有1例支架术后38天手术切除，术后均恢复顺利。其余2例支架为姑息治疗。结论 在X线透视下，经结肠镜放置金属支架解除结肠梗阻安全有效，立刻减轻患者痛苦，使结肠癌梗阻患者能够得到外科I期手术切除吻合。

Objective: To observe the efficacy of endoscopic stenting for proximal colonal obstruction casused by malignant lesion. Methods: A total of 27patients,17 men and 10 women, a mean of 65.8 years old, who received X-ray-guided endoscopic stenting from September 2012 to July 2015 ,were enrolled into these retrospective analysis. The obstructive siter were: sigmoid colon(n=17), descending colon (n=6), rectum (n=3), transverse colon(n=1) . Results: Of the 27 patients ,25 were successfully inserted with metal stents(25/27,92.6%) ,and showed relif or disappear of symptoms within 1 day without major complications. 22 underwent metal stent elective surgical resection after 5～12 days and 1 case after 38 days. There were not important complications in surgical operation cases. Among the metal stent was performed in 2 cases for palliative treatment. Conclusions: Endo scopic placement of metal state can relive the obstructive symptoms caused by colorectal cancer with high successful rate.It is safe,effective, and furthermore for promotion of stage I coeloretal cancer resction ang anastomosis.