The natural history of acute confusional migraine.

Children with migraine, or, less commonly, with no previous history of migraine, may have agitated confusion lasting from several minutes to hours. There is a tendency for the confusional attacks to recur, but they are eventually replaced by typical migraine. The natural history of this syndrome with 1 1/2 to 5 years' follow-up in five children is reported. The mechanism is believed to be cerebral ischemia of one or both hemispheres.