症状性内动脉样硬化中输血受损和早期缺血性中风复发:BIORISK ICAS研究
Shadi Yaghi1,2, Farhan Khan1, Skylar Lewis1
1Department of Neurology, The Warren Alpert Medical School of Brown University, Providence, RI (S.Y., F.K., S.L., A.S., L.S., K.F.).
Stroke
|October 23, 2025
概括
表明血液流动不良的生物标志物,如前部循环边缘区心脏病发作和低输血不匹配,预测内动脉样硬化 (ICAS) 患者的复发性缺血性中风. 这些发现凸显了 perfusion 成像对于风险分层的重要性.
科学领域:
- 神经学 神经学
- 血管医学 血管医学
- 放射学 放射学是一门学科.
背景情况:
- 内动脉样硬化 (ICAS) 显著增加了早期复发性缺血性中风的风险.
- 评估远端输液受损的生物标志物对于识别高风险患者至关重要.
研究的目的:
- 调查前循环边缘区心脏病发作和低输血不匹配与症状ICAS患者在90天内复发性缺血性中风之间的关联.
- 评估输液成像在预测中风复发中的实用性.
主要方法:
- 在BIORISK ICAS研究中,包括患有症状ICAS的住院患者 (50%至99%的狭窄).
- 追溯分析使用多变量考克斯回归来评估前循环边缘区心脏病发作和低输血不匹配与90天复发性缺血性中风之间的关联.
- 在一组患者中分析了输液成像数据 (Tmax>6s).
主要成果:
- 前循环边缘区心脏病发作与复发性缺血性中风风险增加1.40倍有关 (aHR,1.40 [95% CI,1.02-1.93]).
- 低输液不匹配 (≥10毫升) 与复发性缺血性中风风险增加1.83倍有关 (aHR,1.83 [95% CI,1.03-3.28).
- 经过对临床变量进行调整后,这些关联仍然显著.
结论:
- 远端输液受损的生物标志物,包括前循环边缘区心脏病发作和低输液不匹配,与ICAS患者复发性缺血性中风的风险较高有关.
- 这些发现提倡在ICAS管理中使用输液成像,以及对早期再输液策略的未来研究.
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