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Heart:脂蛋白(a)水平与冠心病患者复发事件的关系

2020-05-08 MedSci原创 MedSci原创

循环中Lp(a)的浓度是评估CAD患者RCVE风险的有用预测指标,该研究为Lp(a)未来临床应用提供了更多信息。

脂蛋白(a)(Lp(a))是否可预测冠心病(CAD)患者的复发性心血管事件(RCVE)尚未明确。因此,该研究旨在评估现实世界中首次心血管事件(CVE)患者Lp(a)对RCVE的潜在影响。

在这项多中心的前瞻性研究中,连续纳入了7562例经血管造影诊断为CAD的患者,他们均是首次经历了CVE。入院时研究人员测量了所有受试者的Lp(a)浓度,并根据Lp(a)三分位数对参与者进行分类。所有患者均接受了RCVE的随访,包括心血管死亡、非致命性心肌梗塞和卒中。

在61.45±19.57个月的平均随访期间,共发生了680例(9.0%)RCVE事件。结果显示,事件组的Lp(a)水平明显高于非事件组(20.58 vs. 14.95μmg/dL,p<0.001)。Kaplan-Meier分析表明,与第1三分位数组相比,Lp(a)水平处于第2三分位数2(p=0.001)和第3三分位数(p <0.001)组的患者累积无事件生存率显著降低。此外,多变量Cox回归分析进一步显示Lp(a)与RCVE风险独立相关(HR为2.01,95%CI为1.44至2.80,p<0.001)。此外,在SMART风险评分模型中添加Lp(a)可使C统计量(∆C统计量:0.018(95%CI为0.011-0.034),p=0.002)、净重分类(6.8%,95%CI为0.5%-10.9%,p=0.040)和综合判别(0.3%,95%CI为0.1%-0.7%,p<0.001)显著改善。

由此可见,循环中Lp(a)的浓度是评估CAD患者RCVE风险的有用预测指标,该研究为Lp(a)未来临床应用提供了更多信息。

原始出处:

Hui-Hui Liu,et al.Association of lipoprotein(a) levels with recurrent events in patients with coronary artery disease.Heart.2020.https://heart.bmj.com/content/early/2020/05/07/heartjnl-2020-316586

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    2020-05-10 zhaojie88
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    2020-05-10 slcumt

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