Drugs Aging:老年髋部骨折手术 DOAC使用的安全性值得医生警惕!

2019-02-22 吴星 环球医学

直接作用口服抗凝药(DOACs)越来越多地得到使用,但是虚弱患者的药代动力学和安全性了解较少。2019年1月,发表在《Drugs Aging》的一项研究调查了,老年髋部骨折住院手术患者DOACs的血药浓度和消除速率。

直接作用口服抗凝药(DOACs)越来越多地得到使用,但是虚弱患者的药代动力学和安全性了解较少。2019年1月,发表在《Drugs Aging》的一项研究调查了,老年髋部骨折住院手术患者DOACs的血药浓度和消除速率。

目的:考察老年髋部骨折住院手术患者中,DOACs的血药浓度和消除速率。

方法:本研究纳入年龄≥65岁、因急性髋关节骨折术入院超过6个月的患者。对抗血栓药的使用进行登记,并收集入院时和手术时DOACs(阿哌沙班、达比加群和利伐沙班)的血清样本进行分析。使用各自药物的参考(治疗)范围,对测量的浓度进行评价,并对半衰期进行计算。此外,比较DOAC使用者与华法林使用者之间等待手术的时间。

结果:在纳入的167例患者(中位年龄84岁)中,使用DOACs和华法林的患者人数分别为11例和14例。DOAC使用者中有7例患者入院时的血药浓度高于参考上限范围(>300 nM),这些患者中有5例患者手术时的血药浓度仍然在参考范围内。可以估算出8例患者的清除半衰期,范围在14.6~59.7 h(中位21.6)。观察到DOACs使用者手术等待时间长于华法林使用者(中位44 vs 25 h)。

结论:这项初步研究表明,容易发生髋关节骨折的老年患者存在手术期间由于药物清除率降低而暴露于DOACs治疗血药浓度的风险。几乎50%的患者手术时有治疗浓度,应该进一步研究虚弱老年群体中DOAC使用的安全性。

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    2019-06-12 tsing_hit
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    2020-01-25 wangbingxhy
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    2019-02-24 liuquan
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