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目的评价依维莫司洗脱支架(everolimus eluting stent, Xience V)治疗急性冠脉综合征(acute coronary syndrome,ACS)的临床效果.方法选择2009年7月至2011年1月住我院的急性冠脉综合征患者66例,经球囊预扩张后行冠脉内支架置入术或不经球囊扩张直接置入西罗莫司洗脱支架,评价依维莫司洗脱支架的手术成功率,住院期间及随访期间主要不良心血管事件发生率.结果手术即刻成功率100%,术后造影病变残余狭窄4.1%±3.2%,住院期间无急性、亚急性血栓形成,无心肌梗死,无死亡.临床随访6-9个月,1例不完全血运重建多支病变患者,心绞痛复发,行再次PCI治疗成功.7例6-9个月复查冠脉造影,1例再狭窄.结论依维莫司洗脱支架置入术治疗急性冠脉综合征安全可行,成功率高.“,”Objective To evaluate the clinical effect of everolimus eluting stent in treatment of acute coronary syndrome(ACS). Methods From July, 2009 to January ,2011,66 patients with ACS were treated with direct Stenting (DS) or conventional post-dilation stenting (CS) ,We evaluate the procedure success rate and the occurance of MACCE during the inhospital and 6-9months folow up. Results Immediate procedure success rate was 100% with residual stenosis of 4.1%±3.2%.. Inhospital period and 6-9 months folow up,no acute or subcute thrombosis,no myocardial infarction and deathoccurred. Seven patients received coronary artery angiography(CAG)in 6 months and one case with stenosis was observed. Conclution Everolimus eluting stent implantation is a safe and efficient therapy in treating patients with acute coronary syndrome.