经皮冠状动脉介入治疗后发生急性心肌梗死的相关因素分析Analysis of mechanism in acute myocardial infarction with previous percutaneous coronary intervention
高展,杨跃进,陈纪林,乔树宾,李建军,徐波,秦学文,姚民,刘海波,吴永建,袁晋青,陈珏,尤士杰,高润霖
摘要(Abstract)：
目的观察既往经皮冠状动脉介入治疗(PCI)的急性心肌梗死(AMI)患者急诊PCI时罪犯病变的特点,推断这类患者AMI的发病机制。方法回顾性分析从2004年4月到2006年4月在阜外心血管病医院行急诊PCI治疗的61例既往PCI的AMI患者的临床资料。结果61例患者(62.1±10.0岁,男性88.5%)罪犯病变位置为左前降支(LAD)47.5%、右冠状动脉(RCA)39.5%、左回旋支(LCX)13.0%。在既往PCI1年后,除了阿司匹林的应用率无明显变化(93.8%比100%,P=0.113)外,全部患者均停用了氯吡格雷,应用β受体阻滞剂、血管紧张素转换酶抑制剂和他汀类调脂药的比率明显降低(与PCI后1年内比较,分别为46.9%比75.0%,P=0.001;34.4%比70.8%,P=0.001;28.1%比77.1%,P=0.000)。61例患者的罪犯病变特点:支架内急性和亚急性血栓形成12例(19.7%),晚期和晚晚期血栓形成6例(9.8%),非支架内血栓43例(70.5%),没有支架内再狭窄因素引起。AMI距既往PCI的时间:1个月以下者13例(21.3%),除了1例因术后3天在另一支冠状动脉发生斑块破裂外,其余均因支架内急性/亚急性血栓形成;1个月~1年者16例(26.2%),其中4例为晚期血栓形成,12例为非支架内血栓;1年以上者32例(52.5%),除了2例为支架内晚晚期血栓形成,其余30例均为非支架内血栓因素。结论既往PCI患者AMI的发病机制主要是斑块破裂。冠心病二级预防对减少PCI术后AMI的发生起重要作用。
关键词(KeyWords)： 心肌梗死;血管成形术,经腔,经皮冠状动脉;支架;冠状动脉血栓形成
基金项目(Foundation):
作者(Author): 高展,杨跃进,陈纪林,乔树宾,李建军,徐波,秦学文,姚民,刘海波,吴永建,袁晋青,陈珏,尤士杰,高润霖
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