定量脑血量下降与大核心患者的不良结果有关
Vivek Yedavalli1, Hamza Adel Salim1, Janet Mei1
1Department of Radiology, Division of Neuroradiology, Johns Hopkins Medical Center, Baltimore, MD (V.Y., H.A.S., J.M., D.A.L., A.B., M.H., L.L., F.D., N.Z.H., H.L., V.C.U., E.B.M., A.E.H., R.L.).
Stroke
|August 26, 2024
概括
大脑血液体积 (CBV) <42%和≥68毫升最好预测急性缺血性中风患者接受机械血栓切除术 (MT) 的不良结果. 这种定量测量有助于选择患者接受中风治疗,改善中风护理.
科学领域:
- 神经学 神经学
- 放射学 放射学是一门学科.
- 脑卒中医学 脑卒中医学
背景情况:
- 机械血栓切除术 (MT) 是有效的急性缺血性中风与大血管封闭.
- 目前用于MT患者选择的成像值缺乏标准化.
- 阿尔伯塔中风计划早期计算机断层扫描得分的可靠性问题需要定量性缺血测量.
研究的目的:
- 确定最准确的计算机断层扫描输液参数,用于预测急性缺血性中风-大血管封闭患者的大缺血核心的不良结果.
- 建立一个量化措施,以改善MT患者的选择.
主要方法:
- 从两个中风中心 (从2019年7月至2023年1月) 追溯分析59名患有大缺血核心的患者.
- 以相对脑血流<30%和≥50毫升或阿尔伯塔中风计划早期计算机断层扫描得分<6.6来定义的缺血核心.
- 接收机运行特征分析以确定脑血量 (CBV),相对脑血流量和最大时间的最佳值.
- 主要结局:不良的90天修改的兰金尺度得分 (4-6).
- 根据临床因素调整的多变量模型.
主要成果:
- CBV<42%和≥68mL与不良结局 (90天mRS4-6) 强烈相关,AUC在总和MT-only队列中为0.90.
- 患有CBV<42%和≥68毫升的患者的相对脑血流量显著增加,最大体积的时间和HIR更高.
- 结合CBV<42%和≥68mL的多变量模型稳定地预测了糟糕的结果 (仅在MT小组中的AUC为0.87).
结论:
- 在大核心缺血性中风患者中,CBV<42%和≥68mL是不良结果的高效预测指标.
- 这种定量输液参数增强了机械血栓切除术患者的选择.
- 研究结果支持将这种CBV值纳入急性中风管理协议.
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