Heart:达比加群对不同年龄的心房颤动患者疗效有啥影响?

2017-02-18 xing.T MedSci原创

在所有年龄组达比加群相比于华法林对卒中预防和颅内出血的效应是一致的。达比加群对颅外大出血的效应具有年龄依赖性,对于老年(≥80 年)患者,支持进行达比加群110毫克每日两次治疗。

心房颤动的患病率以及脑卒中和出血的风险因年龄而异。近日,在心脏病领域权威杂志Heart上发表了一篇研究文章,与华法林相比,研究人员旨在评估在长期抗凝治疗的随机评价研究(RE-LY研究)中达比加群对不同年龄的房颤患者脑卒中、出血和死亡率,研究人员采用年龄作为一个连续变量以及采用年龄分类分析了治疗效果。

在研究之初,RE-LY研究包含了10855例(59.9%)年龄<75 岁的患者、4231例(23.4%)75岁-79岁的患者、2305例(12.7%) 80岁-84岁的患者以及722例(4%) ≥85 岁的患者。

相比于华法林,在各个年龄组接受达比加群治疗对脑卒中(达比加群150毫克每日两次的风险比范围为0.63(95%可信区间为0.46-0.86)至0.70(0.31-1.57) ),(达比加群110毫克每日两次的风险比范围为0.52(0.21-1.29)至1.08(0.73-1.60))和颅内出血均有益处(相互作用的P值都不显著)。

研究人员发现年龄和颅外大出血治疗之间存在很显著的相互作用(相互作用P值<0.001),相比于华法林,在年轻患者中两种剂量的达比加群发生率较低(150毫克每日两次的风险比为0.78(0.62-0.97),110 毫克每日两次的风险比为0.72(0.57-0.90)),但在老年(≥80 年)患者中相似(110 毫克每日两次的风险比为1.50(1.03-2.18))或更高的发生率(150 毫克每日两次的风险比为1.68(1.18-2.41))。

在所有年龄组达比加群相比于华法林对卒中预防和颅内出血的效应是一致的。达比加群对颅外大出血的效应具有年龄依赖性,对于老年(≥80 年)患者,支持进行达比加群110毫克每日两次治疗。

原始出处:


Mandy N Lauw,et al. Effects of dabigatran according to age in atrial fibrillation. Heart. 2017. http://heart.bmj.com/content/early/2017/02/17/heartjnl-2016-310358

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    2017-02-20 zhaojie88
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    2017-02-20 slcumt
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    2017-02-20 sodoo
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    2017-02-19 1771ae4158m

    学习一下很不错

    0

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    2017-02-18 tanxingdoctor

    学习了,谢谢啦!

    0

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近期的研究表明,对于非瓣膜性心房颤动老年患者,Xarelto与Pradaxa相比,会增加颅内和颅外出血风险。 FDA药物评价与研究中心的David J. Graham称,Xarelto (rivaroxaban, Janssen)与Pradaxa (dabigatran, Boehringer-Ingelheim)相比,会减少栓塞性卒中风险,增加死亡率。 Graham和他的同事进行了一

PLoS One:与华法林和达比加群相比,利伐沙班的依从性较好

对美国市场研究数据库进行回顾性队列分析,比较非瓣膜房颤患者应用维生素K拮抗剂华法林和非维生素K拮抗的口服抗凝剂利伐沙班和达比加群的持久性和停药率。受试者为2011年11月1日和2013年12月31日之间新诊断为非瓣膜房颤患者,这些患者应用利伐沙班、达比加群和华法林进行抗凝治疗。招募基线CHA2DS2-VASc评分≥2,两个或两个以上的非瓣膜性心房颤动的诊断代码(427.31),并且口服抗凝开始前有