在急性冠状动脉综合征中使用未分离的肝素进行术后抗凝疗:从STOPDAPT-3试验的洞察
Hirotoshi Watanabe1, Masahiro Natsuaki2, Takeshi Morimoto3
1Division of Cardiology, Hirakata Kohsai Hospital, Hirakata, Japan.
The American journal of cardiology
|July 7, 2024
概括
在急性冠状动脉综合征 (ACS) 患者的皮肤穿透冠状动脉干预后 (PCI) 肝素使用增加了出血风险,但没有心血管益处. 对STOPDAPT-3试验的分析表明,当前的指导方针可能需要重新评估PCI后的抗凝血药物.
科学领域:
- 心脏病学 心脏病学
- 干预心脏病学 干预心脏病学
- 临床试验 临床试验
背景情况:
- 目前针对急性冠状动脉综合征 (ACS) 的指导方针不鼓励在没有特定指示的情况下进行皮肤穿冠状动脉干预后 (PCI) 抗凝药,但证据有限.
- STOPDAPT-3试验提供了数据,以重新评估在ACS患者PCI后对肝素的必要性和安全性.
研究的目的:
- 为了比较接受PCI后肝素治疗的ACS患者与没有接受PCI治疗的患者之间的30天结果.
- 评估PCI后肝素对ACS患者在没有机械支持的情况下接受PCI的出血和心血管事件的影响.
主要方法:
- 针对4088名ACS患者进行的STOPDAPT-3试验的后期分析.
- 同一主终点的比较:学术研究联盟 (BARC) 的出血3或5型出血,以及复合心血管终点 (死亡,心脏病发作,支架血栓,中风).
- 分析按PCI后的肝素给药,剂量和患者特征分层,如ST升高心肌梗塞.
主要成果:
- 超过57%的ACS患者在PCI后接受了肝素治疗,ST升高心肌梗塞的发病率更高,以及那些有过程内不良发现的患者.
- 在PCI后,肝素与显著增加的出血风险 (4.75%与2.52%相比,aHR为1.69) 和数字上增加的心血管事件风险 (3.16%与1.72%,aHR为1.56) 相关.
- 较高的肝素剂量与30天内出血和心血管事件的发病率增加相关.
结论:
- 在ACS患者中,PCI后使用未分离的肝素进行抗凝治疗是常见的,但与增加出血风险有关.
- 在ACS患者中使用PCI后的氨酸在减少心血管事件方面没有显示好处,这表明潜在的危害.
- 这些发现挑战了当前的指导方针,并强调需要对ACS中PCI后抗凝策略进行基于证据的重新评估.
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