慢性完全闭塞性病变介入治疗影响因素分析

Outcome of percutaneous coronary intervention in chronic total occlusion lesion

目的 :探讨经皮冠状动脉介入 (PCI)治疗慢性完全闭塞性病变 (CTO)介入治疗成功率的影响因素。方法 :对本院 2 0 0 0年 5月～ 2 0 0 2年 9月 2 4例 2 6处CTO的PCI资料进行回顾性分析。结果 :2 4例 2 6处CTO ,总成功率达 80 .8% ,支架置入 19处 (73.1% )。血管闭塞时间≤ 3个月、闭塞长度≤ 2 0mm、闭塞末端呈尖形者PCI成功率较高 ,有桥状侧支、闭塞近端血管重度弯曲者手术均失败。结论 :影响成功率的因素有血管闭塞时间、闭塞长度、闭塞末端形态、桥状侧支。

Aim:To evaluate the efficacy and safety of percataneous coronary intervention (PCI) for chronic total occlusions. Methods:From May 2000 to Sep 2002, 298 patients were treated by PCI in our hospital (emergency PTCA was not included in this study),and 24 of them had chronic total occlusions(CTO). Results:A total of 24 patients with 26 CTO were analyzed in this study. The success rates for CTO were 80.8%. The factors which influenced the success rate were time of occlusion,the extent of vessel tortuousness before the occlusion and existence of bridge collateral vessel. Conclusion:PCI therapy for CTO, with very high success rate, is an important and safe revascularization method.