A case of mortor neuron syndrome with onset 9 months after electrical injury

K. Tashiro, I. Inoue, Y. Ohyagi, M. Osoegawa, M. Fujimoto, H. Furuya, T. Yamada, Jun-Ichi Kira

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A 72-year-old man noticed progressive weakness of both upper limbs, more severe on the left side, 9 months after an electric shock of a 20,000V alternating current He had diffuse scars of superficial burns with skin graft in four limbs, more on the right side. A neurological examination revealed diffuse muscle atrophy, weakness and fasciculation in both upper limbs, predominantly on the left side, hyper-reflexia in four limbs with mildly exaggerated jaw jerk, left Babinski sign, and mild decrease of touch and pain sensation in the right C6 and C7 segments. Painful dysesthesia was present in the left hand and right lower limb. The search for serum antibodies against GM1, GM2, GM3, GD1a, Gd1b, GQ1b, GA1, and GT1b was negative. No abnormality except mild cervical spondylotic changes was evident in the magnetic resonance imaging of the brain and spinal cord. The upper limb motor evoked potentials (MEPs) were not elicited by the left cortical stimulation and the central motor conduction time by the right cortical stimulation was remarkably prolonged in the upper limb MEPs. Nerve conduction study showed a delay of motor conduction velocity and distal latency in the right median and bilateral ulnar nerves with low amplitude and delayed velocity of sensory nerves of those nerves. Needle EMG revealed diffuse ongoing denervation potentials in bilateral upper limbs and giant motor unit potentials in the right triceps and first dorsal interossei muscles. These findings indicate that the delayed motor neuron syndrome induced by electrical shock is characteristic for having demyelination as well as axonal changes in both central and peripheral nervous systems.

Original languageEnglish
Pages (from-to)732-735
Number of pages4
JournalClinical Neurology
Volume40
Issue number7
Publication statusPublished - Dec 27 2000

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Upper Extremity
Neurons
Wounds and Injuries
Motor Evoked Potentials
Shock
Extremities
Babinski's Reflex
Fasciculation
Ulnar Nerve
Muscular Atrophy
Paresthesia
Neural Conduction
Muscle Weakness
Peripheral Nervous System
Neurologic Examination
Touch
Motor Neurons
Demyelinating Diseases
Denervation
Jaw

All Science Journal Classification (ASJC) codes

  • Clinical Neurology

Cite this

Tashiro, K., Inoue, I., Ohyagi, Y., Osoegawa, M., Fujimoto, M., Furuya, H., ... Kira, J-I. (2000). A case of mortor neuron syndrome with onset 9 months after electrical injury. Clinical Neurology, 40(7), 732-735.

A case of mortor neuron syndrome with onset 9 months after electrical injury. / Tashiro, K.; Inoue, I.; Ohyagi, Y.; Osoegawa, M.; Fujimoto, M.; Furuya, H.; Yamada, T.; Kira, Jun-Ichi.

In: Clinical Neurology, Vol. 40, No. 7, 27.12.2000, p. 732-735.

Research output: Contribution to journalArticle

Tashiro, K, Inoue, I, Ohyagi, Y, Osoegawa, M, Fujimoto, M, Furuya, H, Yamada, T & Kira, J-I 2000, 'A case of mortor neuron syndrome with onset 9 months after electrical injury', Clinical Neurology, vol. 40, no. 7, pp. 732-735.
Tashiro K, Inoue I, Ohyagi Y, Osoegawa M, Fujimoto M, Furuya H et al. A case of mortor neuron syndrome with onset 9 months after electrical injury. Clinical Neurology. 2000 Dec 27;40(7):732-735.
Tashiro, K. ; Inoue, I. ; Ohyagi, Y. ; Osoegawa, M. ; Fujimoto, M. ; Furuya, H. ; Yamada, T. ; Kira, Jun-Ichi. / A case of mortor neuron syndrome with onset 9 months after electrical injury. In: Clinical Neurology. 2000 ; Vol. 40, No. 7. pp. 732-735.
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