JACC:房颤患者使用不同抗凝药 心梗风险知多少

2018-07-20 吴星 环球医学

直接口服抗凝药(DOAC)和维生素K拮抗剂(VKA)预防心梗(MI)有效性的证据具有争议。2018年7月,发表在《J Am Coll Cardiol》的一项研究调查了房颤患者使用阿哌沙班、达比加群、利伐沙班和VKA相关的MI风险。

直接口服抗凝药(DOAC)和维生素K拮抗剂(VKA)预防心梗(MI)有效性的证据具有争议。2018年7月,发表在《J Am Coll Cardiol》的一项研究调查了房颤患者使用阿哌沙班、达比加群、利伐沙班和VKA相关的MI风险。

目的:这项研究的目的是考察房颤患者使用阿哌沙班、达比加群、利伐沙班和VKA相关的MI风险。

方法:使用丹麦医疗保健治疗注册登记研究,确定房颤患者,并根据初始口服抗凝药治疗进行分层。根据对MI住院和死亡风险比的Cox回归,估算标准化绝对1年风险。分别报告口服抗凝药治疗的绝对风险,并对研究人群的特征进行标准化。

结果:在纳入的31739例患者中(中位年龄,74岁;47%为女性),VKA的标准化1年MI风险为1.6%(95%置心区间[CI]:1.3~1.8),阿哌沙班的标准化1年MI风险为1.2%(95% CI:0.9~1.4),达比加群的标准化1年MI风险为1.2%(95% CI:1.0~1.5),利伐沙班的标准化1年MI风险为1.1%(95% CI:0.8~1.3)。DOACs的标准化1年MI风险没有显着风险差异:达比加群vs阿哌沙班(0.04%;95% CI:?0.3~0.4),利伐沙班vs阿哌沙班(0.1%;95% CI:?0.4~0.3),利伐沙班vs达比加群(?0.1%;95% CI:?0.5~0.2)。DOACs与VKA相比的风险差异均具有显着性:阿哌沙班?0.4%(95% CI:?0.7~?0.1),达比加群?0.4%(95% CI:?0.7~?0.03),利伐沙班?0.5%(95% CI:?0.8~?0.2)。

结论:在直接比较DOACs时,没有发现MI具有显着的风险差异,与VKA相比,DOACs与MI风险的显着降低相关。

原始出处:

Lee CJ, et al. Risk of Myocardial Infarction in Anticoagulated Patients With Atrial Fibrillation. J Am Coll Cardiol. 2018 Jul 3;72(1):17-26. doi: 10.1016/j.jacc.2018.04.036.

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