Cardiovasc Ther:伊伐布雷定vs美托洛尔治疗急性下壁心肌梗死 疗效如何?

2017-09-05 石岩 环球医学

2017年8月,发表在《Cardiovasc Ther》的一项由印度科学家进行的前瞻性、双盲、单中心、随机、对照研究,比较了伊伐布雷定vs美托洛尔治疗急性下壁心肌梗死(MI)的有效性,尤其是降低房室传导(AV)阻滞的效果。



2017年8月,发表在《Cardiovasc Ther》的一项由印度科学家进行的前瞻性、双盲、单中心、随机、对照研究,比较了伊伐布雷定vs美托洛尔治疗急性下壁心肌梗死(MI)的有效性,尤其是降低房室传导(AV)阻滞的效果。

背景:AV阻滞成为下壁心肌梗死(MI)患者使用β-受体阻滞剂的关注点。伊伐布雷定可以降低心率并降低AV阻滞风险。

目的:旨在比较伊伐布雷定和美托洛尔在急性下壁MI中使用的可行性、耐受性和有效性。

方法:这是一项前瞻性、双盲、单中心、随机对照研究。1032名急性下壁MI患者中,468名符合条件的患者按照1:1的比例随机分配到伊伐布雷定(A组)和美托洛尔(B组)组中。426名患者进行了意愿治疗分析(A组232人,B组232人)。首要终点为30天严重不良心血管事件发生率,包括死亡、再梗死、完全性心脏传导阻滞(CHB)和心衰。次要终点包括30天复发性心绞痛、再入院、首度或二度AV阻滞和快速性心律失常的发生率。

结果:两种药物分别将平均心率降低到62.22±2.95(A组)和62.53±3.59(B组)次/分(P=0.33)。两组的射血分数都改善(5.15±1.93% vs 5.52±2.18%,P=0.065)。两组在死亡(1.72% vs 1.72%;OR,1.00;95% CI,0.25~4.05;P=1.00)、再梗死(0.86% vs 0.86%;OR,1.00;95% CI,0.14~7.16;P=1.00)、心衰(4.31% vs 2.59%;OR,1.70;95% CI,0.61~4.75;P=0.31)或CHB(0% vs 2.59%;OR,0.07;95% CI,0.00~1.34;P=0.08)等首要终点上,没有显着性差异。除了美托洛尔会出现更多的首度或二度AV阻滞(12.93% vs 2.59%;OR,5.59;95% CI,2.28~13.72;P=0.0002),两组在复发性心绞痛、再入院和快速性心律失常等次要终点上无显着性差异。

结论:伊伐布雷定的耐受性良好,与美托洛尔在降低急性下壁ST段抬高心肌梗死患者心率和AV阻滞风险中等效。

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    2017-09-05 131****1460

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