左心室尾闭塞后的中风机制和严重程度:来自LAAOS III随机临床试验的见解
Aristeidis H Katsanos1,2, Richard P Whitlock1,3, Emilie P Belley-Côté1,4
1Population Health Research Institute, and Hamilton Health Sciences, Hamilton, Ontario, Canada.
JAMA neurology
|November 17, 2025
概括
在接受心脏手术的心房动 (AF) 患者中,手术左心房尾闭塞 (LAAO) 显著降低了中风风险. LAAO可以减少心血管血栓性中风,与中风相关的残疾和死亡率.
科学领域:
- 心脏病学 心脏病学
- 神经学 神经学
- 医疗干预 医疗干预
背景情况:
- 心房动 (AF) 是中风的重要危险因素,通常是由于左心房附属体 (LAA) 中形成的血块.
- 在心脏手术期间手术封闭LAA (LAAO) 是减轻这种风险的一种策略.
研究的目的:
- 调查LAAO对缺血性中风亚型和心脏手术的AF患者的结果的影响.
- 分析LAAO对中风后功能恢复,死亡率和心脏病特征的影响.
主要方法:
- 对LAAOS III随机试验的后期分析,该试验涉及接受心脏手术的AF和高风险中风患者.
- 术术LAAO加标准护理与单独标准护理之间的结果比较.
- 评估中风的功能性结果 (修改的兰金尺度),30天死亡率,神经成像发现 (皮层心脏病发作) 和中风病因.
主要成果:
- 在7天或出院后,LAAO与修改后的兰金度量得分降低有关 (OR,0.80;95% CI,0.65-0.99).
- 接受LAAO的参与者在中风后的30天死亡率较低 (HR,0.55;95% CI,0.31-0.97).
- 与没有LAAO的组相比,LAAO降低了皮质梗塞和疑似心血管血栓性中风的发生率.
结论:
- 在接受心脏手术的AF患者中,外科LAAO与心血管栓塞性中风风险降低有关.
- LAAO改善功能结果,并减少中风事件后的死亡率.
- 这些发现支持LAAO作为心脏手术的AF患者有益的干预措施.
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