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JACC:房颤卒中风险评估1分的患者口服抗凝药是否具有受益?

2015-01-30 MedSci MedSci原创

目前的指南对于房颤患者的管理,建议基于风险口服抗凝药预防卒中。然而,未使用预防性治疗的房颤相关性卒中风险存在很大差异。高风险患者,在日常管理中不存在差异,因为都服用口服抗凝药治疗;低风险患者,其治疗取决于卒中风险评估。欧洲和美国指南都建议使用CHA2DS2-VASc评分经行分类。CHA2DS2-VASc为1分的低风险患者,欧洲心脏协会建议使用维生素拮抗剂,或者选用效果更好的口服抗凝药。然而,C

目前的指南对于房颤患者的管理,建议基于风险口服抗凝药预防卒中。然而,未使用预防性治疗的房颤相关性卒中风险存在很大差异。高风险患者,在日常管理中不存在差异,因为都服用口服抗凝药治疗;低风险患者,其治疗取决于卒中风险评估。欧洲和美国指南都建议使用CHA2DS2-VASc评分经行分类。CHA2DS2-VASc为1分的低风险患者,欧洲心脏协会建议使用维生素拮抗剂,或者选用效果更好的口服抗凝药。然而,CHA2DS2-VASc分为为1的患者,不服用口服抗凝药情况下,其卒中风险在多项研究中有很大的差别,从0.6%-2.0%不等。年风险度为0.6%的患者并不从药物治疗中受益,而年风险度>1%的患者更能从治疗中受益。瑞典丹德吕德医院心内科Friberg L等人对未服用口服抗凝药且CHA2DS2-VASc分数为1的房颤相关性卒中患者评估风险,其研究成果发表在1月份JACC期刊上。

背景:房颤患者,其房颤卒中风险评估CHA2DS2-VASc(充血性心力衰竭,高血压,年龄>75岁,糖尿病,卒中/短暂性缺血发作TIA,血管疾病,年龄65-74岁,性别)>1分,考虑未来中风风险上升,但是分数为1分的风险在各项研究中有所不同。

目的:本研究的目的在于评估CHA2DS2-VASc评分为1分的患者房颤相关性卒中风险。

方法:瑞典全国登记的140420例不同定义卒中事件的房颤患者,对其进行回顾性研究。

结果:广义卒中诊断(包括缺血性卒中出院诊断,未分类卒中,短暂性脑缺血发作,以及肺栓塞)年危险性(44%)比单纯缺血性脑卒中患者高。卒中事件结合房颤患者住院指数在前四周的长期风险加倍。女性患者,年卒中率为0.1%和0.2%,其值取决于那种定义被选用;男性患者,相应的比率为0.5%和0.7%。

结论:房颤以及CHA2DS2-VASc分数为1的患者,其缺血性卒中风险比之前报道的低。这部分患者服用口服抗凝药并没有太多的效益。

原始出处:

Friberg L, Skeppholm M, Terent A. Benefit of Anticoagulation Unlikely in Patients With Atrial Fibrillation and a CHA2DS2-VASc Score of 1. Journal of the American College of Cardiology. 2015, Jan 27;65(3):225-32.

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    2015-02-14 hbwxf
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