[Twilight states in epilepsy].

A total of 82 epileptic patients with twilight states were studied. Such conditions were more frequently encountered in epilepsy due to neuroinfections and brain trauma. Twilight states, as a rule, appear after several years from the onset of the disease, when it was not treated or inadequately treated and indicate an unfavorable development of the epileptic process. It is desirable that twilight states be classified as developing rapidly and with a retarded course. In rapidly developing epileptic disorders the epileptic focus on EEG was more frequently seen in the temporal areas, while in protractd disorders it was seen in the subcortical and stem brain structures. Pneumoencephalography revealed pronounced scarry and cystoadhesive lesions. Twilight states should be differentiated with temporal psychomotor attacks by certain clinical signs.