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导电减速在肌缩侧面硬化症的电子诊断概况

Nizar Souayah¹, Ankit Pahwa², Mustafa Jaffry¹

¹Department of Neurology, Rutgers University, New Jersey Medical School, 90 Bergen Street DOC 8100, Newark, NJ, 07101, USA.

|July 31, 2023

概括

在肌缩侧面硬化症 (ALS) 中,运动神经传导速度减慢主要是由于轴突损失. 然而,特定的模式可能表明额外的脱髓化,使其与专属轴突退化的区别.

科学领域:

神经学神经学
神经生理学神经生理学
电动肌图学电动肌图学

背景情况:

运动神经传导的减缓可能是轴突损失的结果.
脱线神经病变表现出特有的电诊断发现.
肌缩侧面硬化症 (ALS) 是一种进展性神经退行性疾病,影响运动神经元.

研究的目的:

为了研究ALS患者运动神经传导减速的概况.
确定电诊断标准,以区分ALS中的轴突损失与脱髓化.
确定超出极限的极限,在ALS中不太可能发生排他性轴突损失.

主要方法:

线性回归分析用于定义慢性炎症性脱髓化多神经病 (CIDP) 患者的脱髓化置信区间.
导电速度 (CV),距离延迟 (DML) 和F波延迟 (F) 被评估与复合肌动力潜力 (CMAP) 幅度相关.
然后,这些CIDP衍生的间隔被应用于分析95名ALS患者的电诊断数据.

主要成果:

在ALS患者中,CV减速,延长的DML和异常的F波分别在22.2%,19.6%和47.1%的神经中观察到.
在ALS中导电减速主要影响多个神经段,与CMAP幅度依赖于轴突损失的减速一致.
没有一个ALS患者在定义的脱髓化范围内的两个以上神经中表现出心血管减速.

结论:

这些发现表明,虽然轴突损失是ALS减速的主要原因,但在脱髓化范围内的两个神经中减速的存在表明获得的脱髓化或其他机制的潜在贡献.
这项研究提供了电子诊断标准,以帮助区分ALS与其他神经病变.
需要对额外的机制进行进一步的研究,这些机制有助于ALS的电诊断概况.

关键词:

肌缩性侧面硬化症 (AMLS) 是一种疾病.在CMAP中使用CMAP.慢性炎症性脱髓化的多神经病变.导电减速导电减速导电减速神经病变是一种神经病变.

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