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Japanese

DIRECTION-CHANGING POSITIONAL NYSTAGMUS DEMONSTRATED BY ELECTRONYSTAGMOGRAPHY Kimihisa Nomura 1 pp.935-941
Published Date 1980/11/20
DOI https://doi.org/10.11477/mf.1492209171
  • Abstract
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 Positional nystagmus which beats to the right in the left lateral position and to the left in the right lateral postion was noticed in 62 (13.2%) out of 469 patients with open eyes in dark examined by electronystagmography.

 Amplitude, frequency, slow phase velosity and duration of this nystagmus were not useful to differentiate central vestibular disorders from peripheral ones.

 When this nystagmus was detected under Frenzel glasses, disturbance of the brainstem or cerebellum is mostly suspected. Moderate abnormality of the results of eye tracking test and optokinetic pattern test coexisting with this nystagmus suggest central vestibular disorder. Damped pendular rotation test is available to detect the vascular disturbance as a background of diseases and this nystagmus.


Copyright © 1980, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 印刷版ISSN 0386-9679 医学書院

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