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Effect of Posture and Postural Fixation in Repetitive Nerve Stimulation Test Izumi Mori 1 , Osamu Hasegawa 1 1Department of Neurology, Yokohama City University School of Medicine Keyword: repetitive nerve stimulation test , incremental response , posture , postural fixation pp.867-870
Published Date 1999/10/1
DOI https://doi.org/10.11477/mf.1406901499
  • Abstract
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Repetitive nerve stimulation ( RNS ) test is recog-nized as being useful in the diagnosis of myasthenia gravis. We investigated incremental response at high rate stimulation . Healthy 20 median nerves were stimulated with 120% of supramaximal intensity. Com-pound muscle action potential (CMAP) was recorded with a surface electrode on the abductor pollicis bre-vis. In a single stimulus the amplitude of CMAP in the passive and voluntary flexion position of the thumb in-creased by 8% and 34% compared with that of the mid-position.


Copyright © 1999, Igaku-Shoin Ltd. All rights reserved.

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

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