Delirious behavior in children with influenza: its clinical features and EEG findings

The clinical characteristics and electroencephalogram (EEG) findings in delirious behavior in children with influenza were studied in order to differentiate it from influenza-associated encephalitis/encephalopathy. Fifteen consecutive children with delirious behavior associated with influenza were i...

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Bibliographic Details
Published in:Brain & development (Tokyo. 1979) 2005-06, Vol.27 (4), p.271-274
Main Authors: Okumura, Akihisa, Nakano, Takashi, Fukumoto, Yukiko, Higuchi, Kazuo, Kamiya, Hitoshi, Watanabe, Kazuyoshi, Morishima, Tsuneo
Format: Article
Language:English
Subjects:
Adolescent
Brain - diagnostic imaging
Brain - pathology
Child
Child, Preschool
Delirium
Delirium - diagnosis
Delirium - etiology
Delirium - physiopathology
Electroencephalogram
Electroencephalography
Female
Fever - etiology
Humans
Influenza
Influenza, Human - complications
Magnetic Resonance Imaging
Male
Seizures - etiology
Tomography, X-Ray Computed
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Summary:The clinical characteristics and electroencephalogram (EEG) findings in delirious behavior in children with influenza were studied in order to differentiate it from influenza-associated encephalitis/encephalopathy. Fifteen consecutive children with delirious behavior associated with influenza were investigated. Their clinical courses were investigated using medical records. EEG was obtained during the delirious behavior, when possible. The body temperature during the delirious behavior was 39.0 °C or higher in 13 children. A subtle reduction of consciousness was observed in 10 children. Seizures were observed in five children. EEG revealed some mildly abnormal findings in 13 children, including mild slowing of the background activity, insertion of semirhythmic high voltage slow waves, and appearance of relatively high voltage semirhythmic theta waves. The EEG findings normalized after the delirious behavior had disappeared. EEG revealed transient and mild abnormalities in children with delirious behavior but without encephalitis/encephalopathy, and thus might be useful for diagnostic evaluation in such condition.
ISSN:0387-7604
1872-7131
DOI:10.1016/j.braindev.2004.07.005