Circulation:房颤女性口服抗凝决策:CHA2DS2-VA or CHA2DS2-VASc评分?

2018-04-20 吴星 环球医学

2018年2月,发表在《Circulation》的一项由丹麦和英国科学家进行的研究考察,女性性别是房颤患者卒中的风险调节因素而非风险因素:我们应该使用CHA2DS2-VA评分而非CHA2DS2-VASc评分?

2018年2月,发表在《Circulation》的一项由丹麦和英国科学家进行的研究考察,女性性别是房颤患者卒中的风险调节因素而非风险因素:我们应该使用CHA2DS2-VA评分而非CHA2DS2-VASc评分?

背景:目前使用CHA2DS2-VASc评分评估房颤患者卒中风险。性别分类(Sc,即女性性别)占到了CHA2DS2-VASc评分的1分。研究者假设:当将女性性别添加到CHA2DS2-VA评分量表(性别独立性血栓栓塞风险)中,女性性别是卒中的风险调节因素而非总体风险因素。

方法:使用3个全国注册,研究者鉴别出1997年1月1日~2015年12月31日的非瓣膜性房颤患者。排除了基线接受口服抗凝治疗的患者,治疗开始时审查了人-时(如果有的话)。计算了男性和女性的CHA2DS2-VA评分,并在丹麦国家患者注册中随访了1年。首要结局为缺血性卒中或全身性栓塞(血栓栓塞)的基层医院代码。研究者计算了每100人-年的风险分层的粗略事件发生率。为了量化卒中绝对风险,研究者基于伪值法计算了风险。通过纳入CHA2DS2-VA评分的相互作用项来计算不同评分的血栓栓塞风险比,从而调查女性性别作为预后因素的情况。

结果:总共239671例房颤患者(48.7%为女性)完成了分析。女性和男性的平均年龄分别为76.6岁和70.3岁;女性和男性的平均CHA2DS2-VA评分分别为2.7和2.3分。女性每100人年的总体1年血栓栓塞率为7.3,男性为5.7。CHA2DS2-VA评分为0的男性和女性的1年血栓栓塞绝对风险为0.5%,具有合并症的患者(评分>5)风险增加到>7%。评分>1的患者的风险比(男性作为参考)表明,女性具有较高的卒中风险。相互作用具有统计学显着性(P<0.001)。

结论:女性性别是房颤患者卒中的风险调节因素。初始口服抗凝治疗决策应该在CHA2DS2-VA评分的指导下进行(即,排除性别分类标准),但是Sc风险组成部分会影响和突出符合口服抗凝治疗(基于≥2个额外卒中风险因素)的女性的卒中风险。

原始出处:

Nielsen PB, Skj?th F, Overvad TF, et al. Female Sex Is a Risk Modifier Rather Than a Risk Factor for Stroke in Atrial Fibrillation: Should We Use a CHA2DS2-VA Score Rather Than CHA2DS2-VASc? Circulation. 2018 Feb 20;137(8):832-840. doi: 10.1161/CIRCULATIONAHA.117.029081.

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    2018-07-16 huperzia
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    2019-03-12 quxin068
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