BMJ:预防性抗凝治疗可降低新冠肺炎住院患者死亡风险

2021-03-09 MedSci原创 MedSci原创

对于需住院治疗的新冠肺炎患者,接受预防性抗凝治疗可降低30天死亡风险,并且不增加严重出血事件风险

新冠肺炎的全球传播仍在持续,统计发现,部分新冠肺炎死亡患者的死因为静脉血栓和动脉血栓。ICU中,新冠肺炎患者静脉血栓的发生率约为30%。目前,已有美国血液学学会(ASH)、国际血栓与止血学会(ISTH)以及CHEST指南及其专家小组建议对无禁忌症的新冠肺炎患者进行预防性抗凝治疗,以降低血栓栓塞风险。
近日研究人员在美国Covid-19住院患者中,考察了早期预防性抗凝治疗对患者死亡风险的影响。
2020年3月1日至7月31日间,4297名经实验室确诊的SARS-CoV-2感染住院患者参与研究,患者无抗凝史。研究的主要终点为30天死亡率。次要终点为住院死亡率、接受系统性抗凝治疗(代表临床恶化,包括血栓栓塞事件)以及需要输血的出血。
 
4297例covid-19住院患者中,3627例(84.4%)在入院24小时内接受预防性抗凝治疗。99%(n=3600)以上的治疗患者接受皮下肝素或依诺肝素治疗。入院后30天内有622例死亡,其中513例接受了预防性抗凝治疗。大多数患者在住院期间死亡(510/622,82%)。分析显示,在接受预防性抗凝治疗的患者中,30天时的累计死亡率为14.3%,而未接受抗凝治疗的患者为18.7%。与未接受预防性抗凝治疗的患者相比,接受预防性抗凝治疗患者30天死亡率降低了27%(危险比0.73)。同样的,预防性抗凝治疗也降低了患者住院死亡率和系统性抗凝治疗风险。接受预防性抗凝治疗不增加需输血治疗的出血风险(危险比0.87)。
研究认为,对于需住院治疗的新冠肺炎患者,接受预防性抗凝治疗可降低30天死亡风险,并且不增加严重出血事件风险
 
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    2021-08-28 gaoxiaoe
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    2021-03-10 科研科研科研

    抗凝治疗降低新馆祝愿患者风险

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    2021-03-09 公卫新人

    新冠肺炎,疫情何时才能消失

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