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大负荷量氯吡格雷在急性心肌梗死患者行直接PCI治疗中的应用

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摘要 目的探讨大负荷量氯吡格雷在急性心肌梗死(acute myocardial infarction,AMI)患者行直接经皮冠状动脉介入(percutaneous coronary intervention,PCI)治疗时的应用效果。方法把60例AMI患者随机分为常规负荷量(300mg)组和大负荷量(600mg)组,每组30例,入院后立即服用氯吡格雷,分别于服药前、服药后2h、4h取血以比浊法测定血小板最大聚集率;观察患者4周内有无严重出血、粒细胞减少、血小板减少等严重不良反应;观察血管开通时冠状动脉心肌梗死溶栓(thrombolysis in myocardial infarction,TIMI)血流分级及4周内心脏缺血事件。结果与服药前比较,服药后4h2组血小板最大聚集率都明显降低,但在服药后2h仅有大负荷量组明显降低;随访4周,大负荷量组发生慢血流或无血流2例,无死亡及支架内血栓形成病例;常规负荷量组发生慢血流或无血流7例,亚急性支架内血栓形成1例,死亡1例。2组均无严重出血,粒细胞减少、血小板减少等严重不良反应。结论与常规负荷量相比,大负荷量氯吡格雷能改善AMI患者行直接PCI治疗后早期的血小板拮抗不足,且不增加严重副作用。
出处 《岭南心血管病杂志》 2009年第1期51-52,共2页 South China Journal of Cardiovascular Diseases
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参考文献5

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