低剂量里瓦洛克萨班加阿司匹林在脆弱的患者下肢再血管化后
Mario Enrico Canonico1, Cecilia C Low Wang2, Judith Hsia3
1CPC Clinical Research, Aurora, Colorado, USA; Division of Cardiology, Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado, USA. Electronic address: https://twitter.com/me_canonico.
Journal of the American College of Cardiology
|August 21, 2024
概括
里瓦罗克萨班2.5毫克加阿司匹林有效地减少了脆弱的外周动脉疾病患者的缺血事件,在所有患者中都有类似的出血风险增加. 这支持个性化抗血栓治疗.
科学领域:
- 心血管医学 心血管医学
- 药理学 药理学是指药理学的学科.
- 血管外科 血管外科
背景情况:
- 经过下肢再血管化的外周动脉疾病 (PAD) 患者面临高缺血和出血事件的高风险.
- 旅行者PAD研究表明,里瓦罗克萨班2.5毫克加阿司匹林可减少血栓事件,但在有症状的PAD中增加出血.
- 根据年龄,体重或功能来定义的脆弱患者面临更高的风险.
研究的目的:
- 评估Rivaroxaban 2.5 mg在具有症状的PAD后下肢再血管化的脆弱患者中的安全性和有效性.
- 为了确定脆弱状态是否会改变rivaroxaban对缺血和出血结果的治疗效果.
主要方法:
- 根据年龄 (>75岁),低体重 (≤50公斤) 或功能受损 (eGFR <50毫升/分钟/1.73米2) 患者被归类为脆弱.
- 主要疗效结局:急性四肢缺血,大截肢,心肌梗塞,缺血性中风或心血管死亡的组合.
- 主要安全结果:TIMI 大型出血.
主要成果:
- 与非脆弱患者相比,脆弱患者具有较高的初级疗效结果和严重出血的风险.
- 里瓦罗克萨班对减少缺血事件的影响在脆弱和非脆弱患者之间是一致的 (P相互作用=0.37).
- 里瓦洛克萨班在脆弱和非脆弱的患者群体中增加了TIMI大出血,没有显著的相互作用 (P相互作用=0.65).
结论:
- 在下肢再血管化后,患有PAD的脆弱患者对缺血并发症和出血的易感性增加.
- 利瓦罗克萨班2.5毫克加阿司匹林在降低缺血风险和类似的出血风险增加方面显示出一致的好处,无论脆弱状态如何.
- 这些发现支持针对PAD脆弱患者群体的抗血栓策略的个性化.
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