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KMID : 0978920100110020191
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Korean Journal of Clinical Geriatrics
2010 Volume.11 No. 2 p.191 ~ p.196
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Motor Neuron Disease after Heatstroke; A Case Report
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Lee Ha-Lim
Jeong Jeom-Sun
Lim Oh-Kyung
Park Ki-Deok
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Abstract
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Heat stroke is a medical emergency, with the two cardinal features being raised core body temperature(＞40oC) and central nervous system dysfunction. Most cases of neurologic deficit after heatstroke are associated with cerebellum, basal ganglia, peripheral nerve, spinal cord. But, we describe a case of motor neuron disease without peripheral nerve injury after heatstroke. A 60-years-old male was found in his bed on an electric blanket wrapped him up with several under-wears. When admitted, his mental state was drowsy and body temperature was above 41oC. After regained consciousness, quadriplegia became apparent without other sensory deficits. No abnormality was observed on Brain, cervical, thoracic and lumbo-sacral magnetic resonance imaging. But brain positron emission tomography shows mild symmetric hypo-metabolism in the brain, especially bilateral cerebellum. Nerve conduction study and needle electromyography are suggestive of motor neuron disease. We conclude his irreversible neurologic deficits induced by brain hypo-metabolism and thermal insult on motor neuron. In addition, Impaired thermoregulation due to alprazolam, fluoxetine can be responsible for the development of heat stroke.
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KEYWORD
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Heat stroke, Motor neuron disease, Electrodiagnosis
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