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A COMPUTED TOMOGRAPHY STUDY OF MYOTONIC DYSTROPHY Shuhei Kawazawa 1 , Yukio Kusunose 1 , Takahide Hara 1 , Kazuhiko Kodama 1 , Hiroshi Nogaki 1 , Michio Yamada 1 1Department of Neuropsychiatry, Yamaguchi University pp.737-741
Published Date 1984/8/1
DOI https://doi.org/10.11477/mf.1406205358
  • Abstract
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Mental symptom is one of the characteristic features in myotonic dystophy, but documentation of mental signs including pathological changes of the brain has been imprecise. An attempt to show the involvement of the central nervous system by CT scan and EEG has been done in our depart-ment.

The material consists of 14 patients 10 males and 4 females, from 15 to 50 years of age. CT scan of the 14 patients showed diffuse enlargement of lateral and third ventricles without definite atrophy of cerebral cortex and brainstem. Mea-surements of various parts of the ventricles showed a difference and an increase with age of values compared with that obtained from 49 neurologically normal persons (P<0.01).

Main findings of EEG taken from 7 patients were slowing and low voltage of background ac-tivity, and 4 patients showed monotonous alpha waves. Both asymmetry and paroxysmal waves were not found. There was no significant correla-tion between the degree of ventricular enlargement and the frequency of the alpha activity (P>0.05).

Our study reveals that the ventricular enlarge-ment is more correlated with aging than the seve-rity of muscle involvement or the degree of mental deterioration. This fact possibly reflects a progres-sive nature of the pathology of the brain, espe-cially the white matter.


Copyright © 1984, 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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