运动和非运动特征的演变在异常/孤立的REM睡眠行为障碍队列中
Aline Delva1, Seyed-Mohammad Fereshtehnejad2, Andrew Vo1
1Montreal Neurological Institute-Hospital, McGill University, Montreal, Canada.
Neurology
|September 8, 2025
概括
异常性REM睡眠行为障碍 (iRBD) 患者在帕金森病 (PD),勒维体痴呆症 (DLB) 或多系统缩 (MSA) 诊断前几年就会出现渐进的运动和非运动症状. 显而易见的临床轨迹出现,有助于早期发现疾病和临床试验分层.
科学领域:
- 神经学 神经学
- 睡眠医学 睡眠医学
- 神经退行性疾病 神经退行性疾病
背景情况:
- 突发性同核蛋白病,包括异常/孤立的REM睡眠行为障碍 (iRBD),在临床诊断帕金森病 (PD),勒维体痴呆症 (DLB) 或多个系统缩 (MSA) 之前几年表现出轻微的表现.
- 对iRBD患者的纵向研究为早期疾病表型提供了洞察力,有可能改善临床试验分层,终点定义和表转化预测.
研究的目的:
- 通过评估从iRBD到被诊断为PD,DLB或MSA的临床演变来更新和扩展以前的研究.
- 分析iRBD患者在诊断前长达14年的临床发展轨迹.
主要方法:
- 一个前性队列研究,每年对95名经过多睡眠检查证明的IRBD患者进行跟踪.
- 进行了全面的运动和非运动评估,直到满足PD,DLB或MSA的诊断标准 (光转化).
- 混合效应模型被用来比较iRBD患者的临床轨迹与预期的年龄轨迹以及PD和DLB变异器之间的临床轨迹.
主要成果:
- 运动功能在诊断前的10年表现出缓慢的进展,在转换前大约4年加速.
- 全球认知和色彩视觉在phenoconversion发生前4-5年显著下降;从14年前开始明显出现低血,并线性进展.
- 与PD转换器相比,DLB转换器表现出更快的认知和色彩视觉下降.
结论:
- 患有iRBD的个体在公开的协核蛋白病变诊断前几年就表现出正在演变的运动和非运动障碍.
- 临床特征在不同的时间出现,有些是线性进展,有些则在表态转化之前加速.
- 产节性PD,MSA和DLB的轨迹重叠,但在运动功能,认知和色彩视觉方面显示出不同的模式.
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