[Clinical and electroencephalographic aspects of confusional migraine in adults].

The unusual association of acute confusional states with migraine was observed in three adult women. This syndrome, which was previously studied in the content of juvenile migraine, seem to have the following distinctive features: a) sudden onset of confusion and agitation in the course of violent headache attacks; b) possible close relationship with neurological deficits, suggesting basilar migraine; c) demonstration of marked electroencephalographical abnormalities in either one or both posterior quadrants; d) tendency to a rapid recovery, on both clinical and electroencephalographical standpoint. Focal edema in the vertebrobasilar arterial territory appears to be the most likely mechanism.