[Clinico-neurophysiological features of migraine with and without aura].

Clinical phenomenon of migraine aura and comparison of main types of migraine were studied, using a method of visual evoked potentials (VEP) in 46 patients with migraine with aura, in 30--without aura and in 10 healthy controls. Common features as well as differences were revealed. Patients with migraine with aura were distinguished by significantly higher mean amplitudes of P300 component and by more frequents unstable VEP registration as compared to those without aura. Qualitative changes of amplitude and configuration and reduction of latent P300 period concomitant with headache side had the same frequency in both groups. In intra-group clinico-neurophysiological analysis, in regard to visual aura phenomena, the attacks with simple phenomena were the most severe in frequency, combinations with other aura symptoms, clinical and neurophysiological signs of visual system hyperexcitability.