JACC:直接口服抗凝药物相关严重出血的逆转治疗

2021-06-26 MedSci原创 MedSci原创

虽然逆转药物的有效止血率很高,但抗凝患者DOAC相关严重出血后的死亡率仍居高不下

在西方国家,约1%-2%的人正在接受长期抗凝治疗。直接口服抗凝药物(DOAC)的市场份额已经超过了维生素K拮抗剂,目前欧美新增抗凝治疗患者中使用DOAC的比例为68%-79%。

DOAC在临床试验和临床实践中都显示出了积极的益处-风险平衡,但每年约有2%-3.5%的患者会发生大出血。许多患者需要住院治疗,可能需要使用逆转剂来控制出血。

本研究旨在调查使用4因子凝血酶原复合物浓缩物、idarucizumab或andexanet逆转DOAC相关严重出血相关的临床结果。

研究人员系统地检索了关于治疗DOAC相关严重出血的逆转药物的研究。采用随机效应模型对死亡率、血栓栓塞事件和止血疗效进行荟萃分析。

共筛选了60项符合要求的研究,共涵盖4735位采用4因子凝血酶原复合物浓缩物(n=2688)、idarucizumab(n=1111)或andexanet(n=936)逆转DOAC相关严重出血的患者。

不同逆转剂治疗的死亡率、血栓栓塞率和有效止血率

总体上,受试患者的死亡率为17.7%(95%CI 15.1%-20.4%),颅内出血患者的死亡率(20.2%)高于颅外出血患者(15.4%)。血栓栓塞率为4.6% (95%CI 3.3% - 6.0%),其中采用andexanet治疗的患者尤其高(10.7%,95%CI 6.5%-15.7%)。

有无有效止血的患者的全因死亡率

有效止血率为78.5%(95%CI 75.1%-81.8%),各种逆转药物之间无明显差异。再出血率为13.2% (95%CI 5.5%-23.1%),恢复抗凝后再出血率为78%。死亡风险与止血失败率显著相关(相对风险:3.63,95%CI 2.56-5.16)。

综上所述,虽然逆转药物的有效止血率很高,但抗凝患者DOAC相关严重出血后的死亡率仍居高不下。止血失败与死亡风险密切相关。此外,采用andexanet逆转出血的血栓栓塞风险特别高。

原始出处:

Gómez-Outes Antonio,Alcubilla Pau,Calvo-Rojas Gonzalo et al. Meta-Analysis of Reversal Agents for Severe Bleeding Associated With Direct Oral Anticoagulants.[J] .J Am Coll Cardiol, 2021, 77: 2987-3001. https://doi.org/10.1016/j.jacc.2021.04.061

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    2021-10-08 hbwxf
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