NEJM:EUROMAX研究表明拟行PCI手术患者转运途中使用比伐卢定可降低大出血及死亡风险

2013-11-05 箫砚 丁香园

研究要点:HORIZONS-AMI研究已经证明,与肝素、糖蛋白IIb/IIIa抑制剂相比,比伐卢定可降低行PCI手术患者的出血和死亡风险。在临床实践过程中,拟行PCI的患者在转运途中就已接受抗凝治疗,但是转运途中应用比伐卢定的临床效果尚不可知。EUROMAX研究结果表明,拟行PCI患者在转运途中接受比伐卢定治疗可降低患者大出血风险,改善患者30天时临床预后;但是急性支架血栓发生风险升高。HORIZ


试验组和对照组主要研究终点卡普兰曲线

研究要点:

1.HORIZONS-AMI研究已经证明,与肝素、糖蛋白IIb/IIIa抑制剂相比,比伐卢定可降低行PCI手术患者的出血和死亡风险。

2.在临床实践过程中,拟行PCI的患者在转运途中就已接受抗凝治疗,但是转运途中应用比伐卢定的临床效果尚不可知。

3.EUROMAX研究结果表明,拟行PCI患者在转运途中接受比伐卢定治疗可降低患者大出血风险,改善患者30天时临床预后;但是急性支架血栓发生风险升高。

HORIZONS-AMI研究已经证明,与肝素、糖蛋白IIb/IIIa抑制剂相比,比伐卢定可降低行PCI手术患者的出血和死亡风险。在临床实践过程中,拟行PCI的患者在转运途中就已接受抗凝治疗,但是转运途中应用比伐卢定的临床效果尚不可知。为此,研究人员进行了EUROMAX研究。研究结果发表在10月30日NEJM杂志上。【原文下载】

本项研究共纳入2218名STEMI患者,研究人员将这些患者随机分为2组。一组在急诊转运过程中接受比卢伐定治疗,一组接受普通肝素或小分子肝素治疗。研究主要终点是30天时全因死亡率或者与冠状动脉移植术(CABG)无关的大出血。研究的次要终点是全因死亡、再梗或者非CABG相关性大出血。

研究数据显示,比伐卢定与对照组相比,可降低主要研究终点和次要终点发生率。此外,比伐卢定与对照组相比,可降低大出血风险(试验组2.6% VS 对照组 6.0%)。不过,与对照组相比,比伐卢定组发生急性支架血栓的风险更高(试验组 1.1% VS 对照组 0.2%)。两组之间死亡率以及再梗风险没有显著差异。研究结果在各患者分层中均一致。

研究结果表明,拟行PCI患者在转运途中接受比伐卢定治疗可降低患者大出血风险,改善患者30天时临床预后;但是急性支架血栓发生风险升高。

研究背景:

急诊PCI治疗是STEMI的标准治疗方式,PCI治疗前、中、后均需抗凝药物和抗血小板药物进行抗血栓治疗。HORIZONS-AMI研究(the Harmonizing Outcomes with Revasculariza- tion and Stents in Acute Myocardial Infarction trial)表明,比伐卢定与普通肝素、糖蛋白IIb/IIIa抑制剂相比,可降低患者30天时大出血和死亡风险,比伐卢定治疗组生存获益可持续3年。不过,比伐卢定组PCI术后患者出现急性支架血栓的风险更高。

HORIZONS-AMI研究结果公布以后,针对STEMI的治疗有了很多改变,比如经桡动脉行PCI手术开展数量的增加、替卡格雷和普拉格雷应用的增加、以及糖蛋白IIb/IIIa抑制剂应用的减少等等。

在临床实践过程中,拟行PCI的患者在转运途中就已接受抗凝治疗,但是转运途中应用比伐卢定的临床效果尚不可知。因此研究人员进行此项研究,旨在评估拟行PCI手术的STEMI患者在转运途中,应用比伐卢定是否优于普通肝素联合糖蛋白IIb/IIIa抑制剂治疗。此外,需要指出的是,所有患者均同时应用新型P2Y12抑制剂(替卡格雷或普拉格雷)、并拟施行经桡动脉PCI手术。

原文出处:

Steg PG, van 't Hof A, Hamm CW, Clemmensen P, Lapostolle F, Coste P, Berg JT, Van Grunsven P, Eggink GJ, Nibbe L, Zeymer U, Orto MC, Nef H, Steinmetz J, Soulat L, Huber K, Deliargyris EN, Bernstein D, Schuette D, Prats J, Clayton T, Pocock S, Hamon M, Goldstein P; the EUROMAX Investigators.Bivalirudin Started during Emergency Transport for Primary PCI.N Engl J Med. 2013 Oct 30.【原文下载】

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    2014-01-29 李研东
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    2014-03-03 yzh409
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    2013-11-07 cmsvly