[Electroencephalographic findings in tick-borne encephalitis].

Changes of EEG-activity of 10 patients with serologically proved tick-borne encephalitis have been investigated. The most common pathologic signs is the frequency reduction of the basic activity and groups of delta-waves with a frontal pregnancy. The pathologic activity of the EEG mostly coincides with the appearance of organic-psychosyndrome of the patients between 12 and 24 days after the tick-bite. Hypothesis on pathological mechanisms of transitoric EEG-phenomenas and their diagnostical significance are discussed on the basic of literary dates.