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Journal of the Korean Academy of Rehabilitation Medicine 1996;20(4):25.
A Study on Normal Values of Upper Limb Short-Latency Somatosensory Evoked Potentials in Korean Adults
Dong-Sik Park, M.D., Seog-Jae Lee, M.D., Min-Cheol Joo M.D. , Dong-Hoon Kim, M.D.
Department of Rehabilitation Medicine, Wonkwang University School of Medicine
한국 정상 성인의 상지에서의 Short-Latency체성감각유발전위에 대한 연구
박동식, 이석재, 주민철, 김동훈
원광대학교 의과대학 재활의학과
Abstract

Somatosensory Evoked Potential(SEP) study was useful for the electrodiagnostic evaluation of the peripheral nerve, spinal cord and cerebral cortex.

SEPs were recorded on the Erb's point, C5 spinous process and scalp in response to median, ulnar and radial nerve stimulation at the wrist of 25 normal subjects.

The purpose of this study was to provide Korean standard value of upper limb short latency SEP. Following results were obtained.

1) The mean latencies of the N9, N13, N20 potentials were 9.62±0.53, 13.14±0.71, 19.06±0.88msec; 9.93±0.59, 13.93±0.96, 19.58±1.03msec; 10.81±0.87, 14.96±1.13, 20.87±1.17msec respectively in median, ulnar and radial SEPs.

2) The mean amplitudes of the N9, N13, N20 potentials were 5.03±2.25, 2.42±0.75, 6.57±2.61mV; 2.50±1.31, 1.30±0.58, 3.45±1.58mV; 1.18±0.50, 0.74±0.17, 2.34±1.31mV respectively in median, ulnar and radial SEPs.

3) There was significant correlation between the arm length and the latency, and between the height and the latency.

Key Words: Somatosensory evoked potentials, Normative values, Latency, Amplitude


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