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JAHA:HDL抗氧化功能可以大大提高慢性心衰患者的风险预测!

2016-12-22 haofan MedSci原创

在慢性心力衰竭患者中,HDL抗氧化功能受损是慢性心力衰竭患者死亡的一个强有力的独立预测因子,运用HOI这一指标可以大大提高慢性心力衰竭患者的风险预测。

有研究表明氧化应激与慢性心力衰竭发病机制之间存在相关性。在缺血性心肌病患者中发现高密度脂蛋白(HDL)颗粒的抗氧化功能受损;然而,HDL的抗氧化功能对充血性心力衰竭患者临床预后的影响仍是未知。近日,心血管病领域权威杂志JAHA上发表了一篇研究文章,旨在评估HDL的抗氧化功能在一个具有代表性的慢性心力衰竭患者队列中对死亡率的预测价值。

研究人员前瞻性地纳入了320例连续就诊的门诊心衰患者,并且通过HDL氧化指数(HOI)来确定参与者HDL的抗氧化功能。该研究的中位随访时间为2.8年(四分位数间距为1.8-4.9年),88名(27.5%)患者达到了联合心血管终点,是指因心血管事件和心脏移植的联合死亡。

研究人员通过Cox回归分析发现HOI≥1与无心血管事件生存率显著相关,其风险比为2.28(95%可信区间为1.48-3.51,P<0.001)。对潜在混杂因素的进行综合多变量调整后,这种相关性依然显著,调整后的风险比为1.83(95%可信区间为1.1-2.92,P=0.012)。净重新分类指数(32.4%,P=0.009)和综合判别(1.4%,P=0.04)的增加表明决定因素HOI可以显著提高风险预测能力,并且其预测性能超越了N‐末端B型钠尿肽前体。

由此可见,在慢性心力衰竭患者中,HDL抗氧化功能受损是慢性心力衰竭患者死亡的一个强有力的独立预测因子,运用HOI这一指标可以大大提高慢性心力衰竭患者的风险预测。

原始出处:

Lore Schrutka, et al. Impaired High‐Density Lipoprotein Anti‐Oxidative Function Is Associated With Outcome in Patients With Chronic Heart Failure. JAHA.December 21, 2016. 

本文系梅斯医学(MedSci)原创编译整理,转载需授权!

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    2016-12-24 zhaohui6731
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    2016-12-24 ZGMFX24A
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