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Rehabilitation Practice and Science

Translated Title

中樞運動神經誘發電位在預測中風病人運動功能恢復上所佔之角色

Abstract

Electromagnetic stimulation of the motor cortex to produce motor evoked potentials (MEP) recorded from the surface electromyogram in skeletal muscleis a painless, safe and non-invasive means of evaluating the descending motor pathway function in humans.Seventy nine ischemic stroke patients with hemiplegia or hemiparesis participated as the control group(in this study. Electromagnetic stimulation was performed to identify the correlation between MEP findings and clinical motor functional status as well as findings of CT scans. In addition, the motor status of the hemiplegic limb was evaluated by using Brunnstrom staging and the functional status of the stroke patient was evaluated by using Functional Independence Measure (FIM). According to those results, cortical MEP findings in stroke patients correlated well with both the motor function status clinically and the brain lesion radiologically. In the twenty seven cases with infarction involving total middle cerebral artery territory (cortical and subcortical areas), the cortical MEP was absent in twenty six (96%). Among the ten cases with infarction only involving the cortical area, the cortical MEP was absent in one (10%) case. Among the fifty six cases with poor motor status, absence of MEP waveform was found in forty eight (86%). In the other twenty three cases who had a better motor status, only one (4.3%) failed to detect MEP waveform. Above findings suggested the potential role of MEP as a predictor of motor recovery following a stroke.

Language

Traditional Chinese

First Page

117

Last Page

122

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