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Assessing the upper motor neuron in amyotrophic lateral sclerosis using the triple stimulation technique: A multicenter prospective study
Clinical Neurophysiology ( IF 3.7 ) Pub Date : 2021-08-12 , DOI: 10.1016/j.clinph.2021.08.003
Aude-Marie Grapperon 1 , Annie Verschueren 1 , Elisabeth Jouve 2 , Régine Morizot-Koutlidis 3 , Timothée Lenglet 3 , Pierre-François Pradat 4 , François Salachas 4 , Emilien Bernard 5 , Stéphanie Delstanche 6 , Alain Maertens de Noordhout 6 , Nathalie Guy 7 , Véronique Danel 8 , Arnaud Delval 9 , Emilien Delmont 1 , Anne-Sophie Rolland 8 , Pulse Study Group 10 , Laurent Jomir 5 , David Devos 8 , François Wang 11 , Shahram Attarian 1
Affiliation  

Objective

To evaluate the relevance of transcranial magnetic stimulation (TMS) using triple stimulation technique (TST) to assess corticospinal function in amyotrophic lateral sclerosis (ALS) in a large-scale multicenter study.

Methods

Six ALS centers performed TST and conventional TMS in upper limbs in 98 ALS patients during their first visit to the center. Clinical evaluation of patients included the revised ALS Functional Rating Scale (ALSFRS-R) and upper motor neuron (UMN) score.

Results

TST amplitude ratio was decreased in 62% of patients whereas conventional TMS amplitude ratio was decreased in 25% of patients and central motor conduction time was increased in 16% of patients. TST amplitude ratio was correlated with ALSFRS-R and UMN score. TST amplitude ratio results were not different between the centers.

Conclusions

TST is a TMS technique applicable in daily clinical practice in ALS centers for the detection of UMN dysfunction, more sensitive than conventional TMS and related to the clinical condition of the patients.

Significance

This multicenter study shows that TST can be a routine clinical tool to evaluate UMN dysfunction at the diagnostic assessment of ALS patients.



中文翻译:

使用三重刺激技术评估肌萎缩侧索硬化的上运动神经元:一项多中心前瞻性研究

客观的

在一项大规模多中心研究中,使用三重刺激技术 (TST) 评估经颅磁刺激 (TMS) 以评估肌萎缩侧索硬化 (ALS) 的皮质脊髓功能的相关性。

方法

六个 ALS 中心在 98 名 ALS 患者第一次访问该中心时对其上肢进行了 TST 和常规 TMS。患者的临床评估包括修订后的 ALS 功能评定量表 (ALSFRS-R) 和上运动神经元 (UMN) 评分。

结果

62% 的患者 TST 幅度​​比降低,而传统 TMS 幅度比在 25% 的患者中降低,16% 的患者中枢运动传导时间增加。TST 振幅比与 ALSFRS-R 和 UMN 评分相关。TST 幅度​​比结果在中心之间没有差异。

结论

TST是一种适用于ALS中心日常临床实践的TMS技术,用于检测UMN功能障碍,比传统TMS更敏感,并且与患者的临床状况相关。

意义

这项多中心研究表明,TST 可以成为 ALS 患者诊断评估中评估 UMN 功能障碍的常规临床工具。

更新日期:2021-08-27
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