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Eur Heart J:房颤患者抗凝药物选择有了新的方法!

2017-01-08 xing.T MedSci原创

在未服用VKA治疗的房颤患者中,TIMI-AF评分可以帮助预测不良复合预后,并通过鉴别服用NOAC或VKA不同的临床受益来指导抗凝治疗的药物选择。

对于房颤患者是选用非维生素K拮抗剂口服抗凝药物(NOAC),还是选择和维生素K拮抗剂(VKA)可能是极富挑战性的。为了帮助这个决定,近日,心血管领域权威杂志Eur Heart J上发表了一篇研究文章,研究者通过开发了一个新的风险评分来确定哪些患者可以从服用NOACs中受益,哪些患者可以从服用VKA中受益。

ENGAGE AF-TIMI 48研究是一项比在21,105例房颤患者中比较依度沙班和华法林疗效的随机对照临床试验,研究者采用Cox比例风险模型来确定与未服用VKA的华法林治疗患者致残性脑卒中、危及生命的出血、全因死亡率的严重净临床结局(NCO)相关的因素。这些因素被用来开发一个整数风险评分。通过c-指数来评估该评分的绩效,并对其进行验证。Kaplan–Meier分析被三个评分类别和治疗组进行分层。

经过平均2.7年的随访,在2898例患者总人数时间为7549.5年(6.05%/年)共有457次NCO事件发生。NCO的风险预测模型(C=0.693)转化为17点的整数分数,华法林治疗组的低、中、高风险类别分别为3.5%、9.9%和20.8%。在高和中等的风险类别中,无论是更高剂量还是更低剂量的依度沙班相比于华法林都显示出了治疗效益,而在低风险类别中无治疗效益(P相互作用分别为0.008和0.014)。

由此可见,在未服用VKA治疗的房颤患者中,TIMI-AF评分可以帮助预测不良复合预后,并通过鉴别服用NOAC或VKA不同的临床受益来指导抗凝治疗的药物选择。

原始出处:

Christina L. Fanola,et al. A novel risk prediction score in atrial fibrillation for a net clinical outcome from the ENGAGE AF-TIMI 48 randomized clinical trial . Eur Heart J.2017.

本文系梅斯医学(MedSci)原创编译整理,转载需授权!

 

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    2017-01-10 zhaojie88
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    2017-01-10 slcumt
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    2017-01-08 医6666

    来好好学习,每天进步一点!

    0

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