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Isolated Extensor Digitorum Brevis Involvement in the Population of Normal Systemic Nerve Conduction Velocities Eri Mimura 1 , Osamu Hasegawa 2 , Nobuo Kirigaya 1 , Naomi Wada 1 , Gakuji Gondo 3 1Division of Clinical Laboratory, Yokohama City University Hospital 2Department of Neurology, Yokohama City University Schobl of Medicine 3Department of Neurosurgery, Yokohama City University Schobl of Medicine Keyword: peroneal nerve , extensor digitorum brevis , normal nerve conduction , motor nerve conduction studies , compound muscle action potential(CMAP) pp.969-972
Published Date 2000/11/1
DOI https://doi.org/10.11477/mf.1406901675
  • Abstract
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To investigate the characteristics of isolated atrophy in extensor digitorum brevis (EDB), we analysed 262 patients whose polyneuropathy index (PNI) was 90% or more than the normal mean value. The PNI was determined as the mean percentage of the normal in 12 indices concerning to the velocity or long distance latency in motor nerve conduction studies. Latencies were adjusted to 160 cm height. Amplitude of com-pound muscle action potential (CMAP) in EDBshowed no correlation with the patient's age. Similar result was obtained as well when studied in 115 pa-tients whose PNI level was 95% or more than the mean normal value.


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電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

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