Subacute encephalopathy: clinical features, laboratory data, neuroimaging, and outcomes.

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Subacute encephalopathy: clinical features, laboratory data, neuroimaging, and outcomes. Abstract Text:

Akihisa Okumura,Hiroyuki Kidokoro,Kazuya Itomi,Koichi Maruyama,Tetsuo Kubota,Yoko Kondo,Seiko Itomi,Naoko Uemura,Jun Natsume,Kazuyoshi Watanabe,Tsuneo Morishima,

We sought to clarify the clinical, laboratory, neuroradiologic, and neurophysiologic features of the "subacute" subtype of encephalopathy. We retrospectively identified nine patients with subacute encephalopathy out of 97 patients diagnosed as manifesting acute encephalopathy. Neurologic symptoms, clinical course, laboratory data, neuroradiologic and electroencephalographic findings, and outcomes were reviewed through medical records. The median age of patients was 44 months (range, 28-156 months). The initial neurologic sign was a brief seizure in 4, a prolonged seizure in 3, delirious behavior in 1, and a loss of consciousness in 1. Loss of consciousness the next day was subtle in 4, and mild in 5. However, a worsening of consciousness was observed 3-7 days after onset. Laboratory data were unremarkable, and electroencephalography during the early phase found abnormalities in 4 of 7 patients. Magnetic resonance imaging revealed no abnormalities during the early phase, and mild cortical atrophy during the late phase. All but one patient had various degrees of neurologic sequelae. Subacute encephalopathy was characterized by a delayed worsening of neurologic symptoms, mild cortical atrophy on late magnetic resonance imaging, and poor neurologic outcomes. Recognition of this type of acute encephalopathy is important, and a method to promote early diagnosis is desirable.

Subacute encephalopathy: clinical features, laboratory data, neuroimaging, and outcomes. Publishing Authors By Initials

A Okumura,H Kidokoro,K Itomi,K Maruyama,T Kubota,Y Kondo,S Itomi,N Uemura,J Natsume,K Watanabe,T Morishima,

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Subacute encephalopathy: clinical features, laboratory data, neuroimaging, and outcomes. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Pediatric neurology

VOLUME: 38

Page Numbers: 111-7

Journal Abbreviation: Pediatr. Neurol.

ISSN: 0887-8994

DAY: 21

MONTH: Feb

YEAR: 2008

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LANGUAGE: eng

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AFFILIATION: Department of Pediatrics, Juntendo University School of Medicine, Tokyo, Japan; Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan.

Country: United States

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MEDLINETA: Pediatr Neurol

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