[EEG findings in cortisone psychoses--a retrospective study in 10 patients]

The EEG of 10 patients, suffering from cortisone induced transit syndromes according to H.H. Wieck were studied retrospectively. Four patients with mild forms of transit syndromes and acute onset (appearance of symptoms within one month) showed normal EEG. EEG-alterations (i.e. parenrhythms and aidiorhythms according to H. Penin) were found in 5 patients, suffering from a severe transit syndrome with peracute onset (appearance of symptoms within 7 days). Their EEG became normal after remission of this severe transit syndrome. EEG-alterations were not influenced by the administered cortisone dosage. No epileptic seizures nor epileptic patterns in EEG were seen while under cortisone treatment. The data indicate a good correlation between syndrom severity of cortisone induced transit syndromes and the appearance of pathological EEG-patterns.