Quantitative analysis of the features of fasciculation potentials and their relation with muscle strength in amyotrophic lateral sclerosis

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• 作者：Kota Bokuda ; Toshio Shimizu ; Hideki Kimura ; Toshihiro Yamazaki…
• 关键词：Amyotrophic lateral sclerosis ; Fasciculation potential ; Electromyography ; Quantitative analysis ; Muscle strength
• 刊名：Neurological Sciences
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：37
• 期：12
• 页码：1939-1945
• 全文大小：601 KB
• 刊物类别：Medicine
• 刊物主题：Medicine & Public Health
  Neurology
  Neuroradiology
  Neurosurgery
  Psychiatry
  
• 出版者：Springer Milan
• ISSN：1590-3478
• 卷排序：37

文摘

This study aimed to quantitatively analyze fasciculation potentials (FPs) and to investigate their relationship with muscle strength in amyotrophic lateral sclerosis (ALS). Fifty-one patients with sporadic ALS or progressive muscular atrophy (25 men, 26 women, mean age of 68 years) underwent needle EMG. We determined the duration, phase number, and amplitude of FPs from three muscles (upper trapezius, biceps brachii, and tibialis anterior) and examined their relations with muscle strength. In total, 878 FPs were analyzed. FP duration displayed a significant negative relation with the strength of all three muscles; the weaker muscles showed longer durations of FPs than the muscles with normal strength. The amplitude and phase number were not related with muscle strength, but there were significant correlations between the duration and amplitude of FPs in the trapezius and tibialis anterior muscles. The longer duration of FPs in muscles with weak strength suggests that the morphological changes of FPs were caused by temporal dispersion through progressively degenerating and/or immature reinnervating motor branches, and were observed uniformly in different muscles along with disease progression.