JAHA:血清脂蛋白(a)水平与冠状动脉斑块体积的关系

2020-11-23 MedSci原创 MedSci原创

Lp(a)升高与动脉粥样硬化体积百分比增加独立相关。需要进一步的工作来阐明降低Lp(a)的治疗与心血管预后之间的关系。

脂蛋白(a)(Lp(a))是血管事件的危险因素,但是增加风险的机制尚未明确。近日,心血管疾病领域权威杂志JAHA上发表了一篇研究文章,这项研究旨在评估了Lp(a)与通过血管内超声检查衡量的冠状动脉粥样硬化体积之间的关系。

这是对6项通过血管内超声检查衡量冠状动脉粥样硬化随机试验的事后分析。人群分为基线血清Lp(a)高(≥60 mg/dL)和低(<60 mg/dL)水平组。该研究的主要结局是基线冠状动脉粥样硬化体积百分比。研究人员使用混合模型对基线低密度脂蛋白、ApoB(载脂蛋白B100)、非高密度脂蛋白、性别、年龄、民族、心肌梗塞病史、他汀类药物使用和血管内超声检查进行调整,以提供基线斑块负担的估计值。

在3943名患者中,17.3%(683名)患者的Lp(a)≥60 mg/dL,82.7%(3260名)患者的Lp(a)<60 mg/dL。在基线时,Lp(a)水平高的患者未经调整的低密度脂蛋白水平(107.7±32.0 vs. 99.1±31.5)和他汀类药物治疗的比例(99.0% vs. 97.0%)较高,但调整Lp(a)后的低密度脂蛋白水平在较高Lp(a)水平患者中较低(80.6±32.0 vs. 94.0±31.4)。在未经调整(38.2%[32.8,43.6] vs. 37.1%[31.4,43.1],P=0.01)和风险调整后(38.7%±0.5 vs. 37.5%±0.5,P<0.001),高Lp(a)水平组动脉粥样硬化的百分比明显更高。Lp(a)五分位数1-5的患者动脉粥样硬化体积风险调整百分数增加(37.3±0.5%,37.2±0.5%,37.3±0.5%,38.0±0.5%, 38.5±0.5%,P=0.002)。

由此可见,Lp(a)升高与动脉粥样硬化体积百分比增加独立相关。需要进一步的工作来阐明降低Lp(a)的治疗与心血管预后之间的关系。

原始出处:

Chetan P. Huded.et al.Association of Serum Lipoprotein (a) Levels and Coronary Atheroma Volume by Intravascular Ultrasound.J AM HEART ASSOC.2020.https://www.ahajournals.org/doi/10.1161/JAHA.120.018023

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    2020-11-25 zhaohui6731
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    2020-11-24 Jessica

    血清脂蛋白升高与动脉粥样硬化体积百分比增加独立相关。

    0

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    2020-11-24 咻凡

    Lp(a)升高与动脉粥样硬化体积百分比增加独立相关。

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