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Japanese

Acute Non-Herpetic Viral Encephalitis of Juvenile Onset : Analysis of 11 Cases Based on Initial Clinical Symptoms Hiroshi Kataoka 1,2 , Nobuo Kohara 1 , Wakiro Sato 1 , Manabu Sakaguchi 1 , Michi Kawamoto 1 , Shinn Takano 1 1Department of Neurology, Kobe City General Hospital 2Department of Neurology, Nara Medical University Keyword: non-herpetic encephalitis , initial neurological symptom , psychiatric symptom , outcome pp.599-606
Published Date 2005/7/1
DOI https://doi.org/10.11477/mf.1406100056
  • Abstract
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We investigated clinical features of juvenile patients presenting non-herpetic viral acute encephalitis (4 men and 7 women, aged of onset ; 23.7±3.3 years) without malignancy and immunodeficiency. We divided the patients into two groups according to initial neurological symptoms : psychiatric symptoms mimicking schizophrenia (group P, n=5), seizure (group S, n=6), and compared clinical manifestations among the two groups. Symptoms frequently seen in initial phase of the illness were neck stiffness (4 cases, 36%), involuntary movement (7 cases, 64%) and convulsion (8 cases, 73%). There were no significant difference among the groups except seizure. Patients in group P had more CSF cells and CSF lymphocytes compared with other groups (p<0.05 and p<0.01, respectively). Abnormal intensities in T2-weighted magnetic resonance images were found in 4 cases (36%). The term from the onset to leaving hospital of group P (213±227 days) was longer than that of group S (98±85 days), although it did not reach a significant difference.

 These findings indicate that juvenile acute non-herpetic encephalitis initially presenting psychiatric symptoms was serious and had relatively poor prognosis.

(Received : October 19, 2004)


Copyright © 2005, 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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