在抗粉胺β免疫疗法期间,右皮层损伤先于腰部微出血
Akihiro Shindo1, Yoshinori Hirata1, Hidekazu Tomimoto1
1Department of Neurology, Mie University Graduate School of Medicine, Japan.
Internal medicine (Tokyo, Japan)
|May 14, 2025
概括
与粉样蛋白相关的成像异常 (ARIA) 可能在阿尔茨海默病治疗期间发生. 新的白质变化可能表明未来的大脑微型血流,一种ARIA-H,在抗粉样蛋白治疗期间.
科学领域:
- 神经学 神经学
- 阿尔茨海默氏症疾病研究研究
- 放射学 放射学是一门学科.
背景情况:
- 与粉样蛋白相关的成像异常 (ARIA) 是已知的抗粉样蛋白β (Aβ) 单克隆抗体治疗阿尔茨海默病 (AD) 的并发症.
- ARIA包括水/溢出 (ARIA-E) 和血红蛋白沉积 (ARIA-H).
研究的目的:
- 报告在aducanumab临床试验期间观察到的一例新型脑微血病 (CMB).
- 在接受抗Aβ治疗的患者中调查ARIA-H的潜在前体征.
主要方法:
- 一位70多岁的日本妇女的案例介绍,由于AD导致轻度认知障碍.
- 用了粉样质正子辐射断层扫描来确认AD.
- 使用磁共振成像 (MRI),特别是流体减弱反转恢复 (FLAIR),监测大脑变化.
- 观察并描述了一种新的叶片大脑微血流 (CMB).
主要成果:
- 患者在治疗后出现了一种新的叶片大脑微型血流 (CMB).
- 最初的MRI揭示了FLAIR上的近皮层白质过强度.
- 这些超强度后来被确定为一种新的CMB,表明ARIA-H.
结论:
- 副皮层白质过强度可能是ARIA-H.的早期指标.
- 这些发现表明,在抗粉胺治疗期间,可能会发生与大脑粉胺血管病变相关的变化.
- 密切监测这种白质病变对于患者的安全至关重要.
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