Inflammation of the meninges (meningitis) and brain (encephalitis) associated with clinical evidence of neurologic dysfunction
System(s) affected: nervous
Major and minor diagnostic criteria have been proposed for probable and confirmed encephalitis of infectious or autoimmune etiology.
Assess risk factors in all cases of encephalitis.
Many patients require intensive care.
In general, empiric therapy with acyclovir (dose below) is appropriate in cases of suspected encephalitis while awaiting formal diagnosis (1)[A].
Postencephalitis sequelae are primarily neurologic. Guide follow-up accordingly (e.g., anticonvulsants for seizures).
Physical therapy may be necessary.
Autore G, Bernardi L, Perrone S, et al. Update on viral infections involving the central nervous system in pediatric patients.
Children (Basel). 2021;8(9):782. ...
A86 Unspecified viral encephalitis
A85.2 Arthropod-borne viral encephalitis, unspecified
A84.9 Tick-borne viral encephalitis, unspecified
A83.9 Mosquito-borne viral encephalitis, unspecified
Patients with suspected encephalitis should have MRI and CSF analysis (using PCR) unless otherwise contraindicated.
Preventive measures include protective clothing, vector control, and ...
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