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JAMA Cardiol:直接口服抗凝药用于ACS二级预防

2018-02-14 国际循环编辑部 国际循环

目前,急性冠状动脉综合征(ACS)患者在抗血小板治疗基础上应用直接口服抗凝药(DOAC)进行二级预防的安全性及有效性尚不清楚。近期,JAMA心脏病学杂志发表的一项最新研究对此进行了探讨。

目前,急性冠状动脉综合征(ACS)患者在抗血小板治疗基础上应用直接口服抗凝药(DOAC)进行二级预防的安全性及有效性尚不清楚。近期,JAMA心脏病学杂志发表的一项最新研究对此进行了探讨。

研究者对既往有关抗血小板治疗单用及其与DOAC联用的6项随机临床试验中共计29 667例ACS患者(STEMI及NSTE-ASC患者比例分别为49.1%和50.7%)进行系统回顾和荟萃分析。结果发现,与单纯抗血小板治疗者相比,DOAC与抗血小板治疗联用可显著降低主要疗效终点(心血管死亡、心肌梗死卒中的复合终点)的发生风险(OR=0.85,95%CI:0.77~0.93)。进一步分析显示,与NSTE-ACS患者相比,上述获益在STEMI患者中更显著[OR值:0.76(95%CI:0.66~0.88)vs.0.92(95%CI:0.78~1.09)]。关于安全性,分析发现,与单纯抗血小板治疗者相比,DOAC与抗血小板治疗联用可显著增加大出血风险(OR=3.17,95%CI:2.27~4.42)。

上述结果显示,DOAC联合抗血小板治疗的有效性随ACS患者初始临床表现不同而不同。具体来说,上述联合治疗可使STEMI患者而非NSTE-ACS患者获益,但显著增加出血风险。未来,有必要进一步研究探索STEMI患者而非NSTE-ACS可从上述联合治疗中获益的原因以及更好地平衡上述联合治疗疗效及安全性的方法。

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    2018-02-16 yaanren
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