Article ID Journal Published Year Pages File Type
3084694 Pediatric Neurology 2015 4 Pages PDF
Abstract

BackgroundHuman herpesviruses-6 and -7 have been associated with febrile seizures and with encephalitis, the latter predominantly in immunocompromised individuals. Acute hemorrhagic encephalitis is frequently a fatal disease that can occur in the setting of viral infection or can be a postinfectious phenomenon, often with no cause identified. Although hemorrhagic encephalitis has been reported with human herpesvirus-6 infection, only one individual, an immunocompromised child, has been documented with human herpesvirus-7 infection. The role of immunosuppression is not well-established in the management of this rare condition.Patient descriptionWe present an 11-year-old boy with hemorrhagic brainstem encephalitis who underwent extensive infectious and autoimmune testing, positive only for human herpesvirus-7 in the cerebrospinal fluid. The patient recovered after treatment with intravenous immunoglobulin, high-dose steroids, and plasma exchange.ConclusionThis is the first report of hemorrhagic brainstem encephalitis with human herpesvirus-7 in a previously healthy individual, adding to existing reports of late-onset human herpesvirus-7 infection associated with encephalitis in children. It also underscores that aggressive immunosuppression may be used early in the course of this disorder and may be beneficial for recovery.

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