JACC:首发心肌梗死后左心室射血分数改变可影响患者预后

2018-03-08 国际循环编辑部 国际循环

心肌梗死(MI)后早期左心室射血分数(LVEF)降低有助于识别存在不良结局风险的患者,但MI后数周到数月LVEF变化能否为患者预后提供额外信息尚不清楚。近期,JACC发表的一项最新研究探讨了首发MI后LVEF变化对患者预后的影响。

心肌梗死(MI)后早期左心室射血分数(LVEF)降低有助于识别存在不良结局风险的患者,但MI后数周到数月LVEF变化能否为患者预后提供额外信息尚不清楚。近期,JACC发表的一项最新研究探讨了首发MI后LVEF变化对患者预后的影响。



研究者评估REFINE(MI后无创风险评估)研究、CARISMA(MI后心律失常及风险分层)研究及ISAR(自主调节改善分层)研究三大独立队列中首发MI患者MI后早期(2~7天)及晚期(2~12周)LVEF的变化情况,并将患者分为LVEF未恢复(Δ≤0%)、轻度增加(Δ为1%~9%)和大幅增加(Δ≥10%)三类,采用Cox多因素模型评估LVEF变化与心脏停搏(SCA)及全因死亡风险的相关性。

结果发现,在REFINE研究中,校正血运重建情况、基线LVEF、药物治疗情况后,与LVEF恢复的患者相比,LVEF未恢复的患者SCA及死亡风险均明显增加,HR值分别为5.8(95%CI:2.1~16.6,P=0.001)和3.9(95%CI:1.5~10.1,P<0.001)。对其他两个研究队列的分析结果与上述结果相似。此外,研究发现,与早期评估的LVEF相比,MI 6周后再次评估的LVEF对患者结局的预测价值更大。

上述结果表明,首发MI后LVEF的恢复程度能为患者预后提供重要信息,MI后LVEF未恢复的患者存在较高SCA及死亡风险。

原始出处:
Derek S.Chew, Huikuri Heikki, Georg Schmidt, et al. Change in Left Ventricular Ejection Fraction Following First Myocardial Infarction and Outcome. JACC, February 2018 DOI:10.1016/j.jacep.2017.12.015

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    2018-03-09 changjiu

    学习了.谢谢

    0

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    2018-03-09 飛歌

    学习了很有用不错

    0

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几张美图告诉你,心肌梗死心电图就是这么简单!