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Journal of the Korean Academy of Rehabilitation Medicine 2005;29(6):563-567.
Relationship of National Institute of Health Stroke Scale and Motor Evoked Potentials in Subjects with Stroke.
Jung, Han Young , Kim, Tae Hwan , Park, Jin Hee
Department of Rehabilitation Medicine, Inha University College of Medicine, Korea. rmjung@inha.ac.kr
뇌졸중 환자에서 NIHSS검사와 운동유발전위와의 연관관계
정한영, 김태환, 박진희
인하대학교 의과대학 재활의학교실
Abstract
Objective
To investigate the relationship between National Institute of Health Stroke Scale (NIHSS) and motor evoked potential (MEP) after stroke, measured by transcranial magnetic stimulation (TMS).
Method
Forty six subjects with the middle cerebral artery ischaemic/hemorrhagic stroke were examined with NIHSS and TMS. According to the responsiveness of MEP in the affected muscles, subjects were divided into 2 groups: Group I consisted of 26 subjects responsive to TMS of the affected hemisphere and group II, 20 subjects unresponsive to TMS. NIHSS score was expressed as a sum of NIHSS total score, NIHSS arm and leg subscore.
Results
The resting motor threshold (rMT) and the ampli-tude of MEP in group I were 75.1% and 13.5 uV, respectively. Although NIHSS leg subscore was no statistical difference between two groups, NIHSS total score and NIHSS arm subscore in group I were statistically lower than those in group II. In group I, the rMT had a correlation with NIHSS total score and NIHSS arm subscore (r=0.39, r=0.49, p<0.05), but did not with NIHSS leg subscore (r=0.07, p>0.05).
Conclusion
The NIHSS has relationship with cortical neurophysiological changes in the affected cerebral cortex in stroke. Therefore, it would be a useful tool to evaluate the status of motor function of hemiplegic stroke. (J Korean Acad Rehab Med 2005; 29: 563-567)
Key Words: National Institute of Health Stroke Scale (NIHSS), Transcranial Magnetic Stimulation (TMS), Stroke


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