57例冠状动脉慢性完全闭死病变的冠状动脉介入治疗分析

目的探讨冠状动脉慢性完全闭死病变(CTO)的临床特点。方法对825例冠状动脉造影患者中的57例CTO病变患者行经皮冠状动脉介入治疗(PCI),并对其临床资料进行统计分析。结果57例患者中,单支病变11例,双支病变29例,三支病变17例。在70支病变血管中,无前向血流通过44支,少量血流通过26支;前降支病变32支,回旋支病变16支,右冠状动脉病变22支;闭死时间≤3个月41支,>3个月29支;闭死长度≤20 mm43支,>20 mm27支;闭死末端形态呈鼠尾状42支,呈刀切状28支;70支完全闭死血管成功植入支架57支,PCI成功率81.4%。结论对心肌梗死患者尤其是合并糖尿病的男性患者,早期进行冠状动脉造影,选择适当的病例及病变,对预防CTO形成及提高PCI成功率具有积极的作用。

Experience of Percutanous Coronary Intervention in 57 Cases with Chronical Total Occlusion

Objective To explore clinical characteristics of chronic total occlusion(CTO) in population with routine coronary angiography,and to cumulate therapeutic experience.Methods Retrospective analysis was performed on clinical data of 57 cases with CTO selected from 825 patients undergone coronary angiography.Results Among 57 cases,the percentage of male,myocaridial infarction,diabetes mellitus,hyperlipidermia and left ventricular dysfunction was 73.7%,84.2%,22.8%,73.7% and 22.8%,respectively.The types of lesions included single branch(n=11),double branches(n=29) and three branches(n=17).Of 70 branches lesion vessels,44 were TIMI 0 of blood flow classification and 26 were TIMI1.The position of lesions occurred at left anterior descending branch(n=32),left circumflex branch(n=16),right coronary artery(n=22).The occlusion time was less than three months(n=41) and more than three months(n=29).The lengths of lesion was divided into less than 20 mm(n=43) and more than 20 mm(n=27).The shapes of terminal lesion looked like rat-tail(n=42) and blaze knife-edge(n=28).The coronary stents were performed at 57 lesions among 70 branches and the successful rate of operation was 82.9%.Conclusions Timely coronary angiography and selecting suitable treatment on different kinds of lesions for male patients with myocardial infraction,especially complicated with diabetes mellitus,might play important roles in prevention of CTO and in improvement of the successful rate of percutanous coronary intervention for the complex lesion.