[Catamnesis of patients sustaining the acute period of epidemic encephalitis in Primor'e].

The authors studied 20 patients (12 males and 8 females) from 5--40 years of age who had acute forms of epidemic encephalitis. Progressive development was marked only in 2 patients (in one case typical parkinsonism, in the other--a hallucinatory-paranoid schizophrenoform syndrome). In the majority of the cases neurological symptoms of the acute period gradually subsided up till a full disappearance (in 8 out of 20 cases). Among the residual of symptoms of contemporary epidemic encephalitis special attention should be drawn to blepharoclonus and blepharospasm, converging both monocular nistagmus and peculiar "psychic equivalents" of parkinsonism in the form of akairia. These symptoms may be used for a retrospective diagnosis of epidemic encephalitis.