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非瓣膜性房颤患者脑梗塞和阿司匹林抵抗危险因素研究 被引量:6

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摘要 目的研究非瓣膜性心房颤动(NVAF)发生脑梗塞与血小板聚集功能、血清C反应蛋白(CRP)水平关系,探讨阿司匹林抵抗(AR)可能的影响因素及预测指标。方法既往服用过阿司匹林的非瓣膜性房颤患者共40例,其中合并脑梗塞16例,定义为阿司匹林抵抗(AR)组,无脑梗塞24例,定义为阿司匹林敏感(AS)组。通过血小板聚集仪测血小板聚集率,普通血清化学免疫法测CRP,酶法测血脂。结果两组基本情况无明显差异。二磷酸腺酐(ADP)及肾上腺素(EPI)诱导的最大血小板聚集率〔PAG(M)〕及一分钟聚集率〔PAG(1)〕AR组明显高于AS组(P<0.05)。多因素logistic回归分析结果示ADPPAG(M)>60%,EPIPAG(M)>60%及两者均>60%的人数比例AR组明显高于AS组(P<0.05)。AR组阿司匹林剂量明显低于AS组。血清CRP两组无明显差异(P>0.05)。结论NVAF患者给予阿司匹林治疗后仍有PAG(M)及PAG(1)增高可能发生脑梗塞,存在AR,阿司匹林剂量不足可能是产生AR的因素之一。体外的血小板聚集功能检测以达到有效抑制血小板活性,避免阿司匹林治疗失败,对阿司匹林预防非瓣膜性房颤患者发生脑梗塞可能有益。
出处 《四川大学学报(医学版)》 CAS CSCD 北大核心 2009年第2期344-346,共3页 Journal of Sichuan University(Medical Sciences)
基金 国家十五攻关课题“非瓣膜性房颤抗凝治疗研究”资助
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