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[A study of the relationship between initial febrile seizures and human herpes virus 6, 7 infections]
1The Nakano Children's Hospital, Osaka. kiyo@pearl.ocn.ne.jp
Insights
Human herpesvirus (HHV) 6 and 7 infections are frequently linked to initial febrile seizures (FS) in young children. This study found HHV 6 or 7 DNA in 84% of patients, confirming their role in at least 34% of FS cases.
Area of Science:
- Virology
- Pediatrics
- Neurology
Context:
- Febrile seizures (FS) are common in children under three.
- Distinguishing infectious causes of FS is crucial for appropriate management.
- Human herpesviruses (HHV) 6 and 7 are known neurotropic viruses.
Purpose:
- To investigate the prevalence and role of Human Herpesvirus (HHV) 6 and 7 in children presenting with initial febrile seizures (FS).
Summary:
- DNA detection of HHV 6 and 7 was performed on peripheral blood mononuclear cells from 56 children (35 boys, 21 girls) under three years old admitted for initial FS.
- HHV 6 or 7 DNA was detected in 84% of patients.
- The study demonstrated that HHV 6 or 7 infections are responsible for at least 34% of initial FS cases.
- Complex febrile seizures were observed in 47% of patients clinically diagnosed with exanthema subitum.
Impact:
- HHV 6 and 7 infections are significant contributors to initial febrile seizures in young children.
- Findings suggest a potential direct invasion of the central nervous system by HHV 6 and 7 as a mechanism for FS.
- This research aids in understanding the etiology of febrile seizures and informs clinical diagnosis and treatment strategies.
Abstract:
The DNA detection of human herpes virus (HHV) 6, 7 was performed in the patients who visited to the Nakano children's hospital because of their initial febrile seizures (FS). Those patients included 35 boys and 21 girls under 3 years of age (mean: 1 year 4 months). DNAs of HHV 6, 7 in the mononuclear cells extracted from peripheral blood were detected in 84% of the patients. This study proved that at least 34% of initial FS are caused by HHV 6 or 7 infections. Forty-seven percents of the patients who were clinically diagnosed as exanthema subitum showed complex type FS. In conclusion, HHV 6 and 7 infections are often related to the occurrence of initial FS, which may be in part caused by their direct invasion to the central nervous system.
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