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KMID : 0860920070090010036
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Journal of the Korean Association EMG-Electrodiagnostic Medicine
2007 Volume.9 No. 1 p.36 ~ p.42
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Utility of Quantitative Electromyography in the Evaluation of Carpal Tunnel Syndrome
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Cho Soo-Kyung
Park Yoon-Ghil
Lee Sang-Chul
Moon Jae-Ho
Min Kyoung-Hoon
Park Yong-Bum
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Abstract
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Objectives: The purpose of this study is to evaluate quantitative electromyography (QEMG) of carpal tunnel syndrome.
Methods: Thirty six healthy controls and 24 patients who were diagnosed having carpal tunnel syndrome were included in this study. The quantitative EMG study of abductor pollicis longus (APB) muscles were performed in both control and patients group. Turns, activity, mean amplitude, envelop amplitude and number of small segments (NSS) were obtained automatically.
Results: Mean amplitude and envelop amplitude were likely to be located in left-upper quadrant of nor- mal cloud and NSS were in right lower quadrant in some cases. However the differences were not statisti- cally significant. Disease duration and unit residue of each parameter (mean amplitude, envelop ampli-tude and NSS) did not have close correlation.
Conclusion: In this study, quantitative EMG has limited value in the diagnosis of carpal tunnel syn-drome.
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KEYWORD
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Carpal tunnel syndrome, Quantitative electromyography
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