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Published on: July 24, 2016
[Three cases with acute encephalopathy related with adenovirus type 7 infection]
1Department of Pediatrics, Urafune Hospital of Yokohama City University, School of Medicine.
Insights
Acute encephalopathy in children linked to adenovirus type 7 (AD-7) infection presents with delayed seizures and abnormal blood markers. Steroid therapy showed promise, suggesting a post-infectious encephalitis mechanism possibly involving cytokine effects.
Area of Science:
- Pediatric Neurology
- Infectious Diseases
- Neuroimaging
Background:
- Adenovirus type 7 (AD-7) infections can lead to severe neurological complications in children.
- Acute encephalopathy is a critical condition requiring prompt diagnosis and management.
Observation:
- Studied clinical and CT findings in 3 children with AD-7 associated acute encephalopathy.
- Observed seizures occurring 8-10 days post-pyrexia onset.
- Noted abnormal serum markers (elevated AST, LDH, CRP; decreased WBC, serum protein) and absence of CSF leukocytosis.
Findings:
- All patients exhibited mild brain atrophy on CT scans.
- One patient responded positively to steroid pulse therapy.
- Pathogenesis remains unclear but suggests a post-infectious encephalitis.
Implications:
- Findings implicate cytokine dysregulation in the pathogenesis of AD-7 encephalopathy.
- Highlights the potential role of neuroimaging and specific therapies in managing this condition.
- Emphasizes the need for further research into AD-7 associated neurological sequelae.
Abstract:
We studied the clinical and CT findings of 3 children with acute encephalopathy associated with adenovirus type 7 (AD-7) infection. Seizures in all the patients developed from 8 to 10 days after the onset of pyrexia. The values of serum AST, LDH and CRP elevated and those of WBC and serum protein decreased at the onset of encephalopathy. None of the patients had CSF leukocytosis. CT showed mild brain atrophy in all patients. A steroid pulse therapy was effective in one patient. The pathogenesis of encephalopathy is unknown. However, its onset and the success of the steroid pulse therapy suggested that it is a post infectious encephalitis. These findings, as well as the data of blood examination and of previous reports, implicated adverse effects of cytokines in the pathogenesis of this encephalopathy.
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