Abstract
We present clinical and EEG findings in 4 children with basilar migraine (BM) (three female and one male, age 11 to 13.5 years). All patients had an EEG during the acute attack and a follow-up EEG within 4 to 18 days. In two patients the EEG, done within 4 h of the onset of symptoms (initial stage), showed diffuse polymorphic subdelta-delta activity. In two other children the EEG, performed 16 h after the onset of symptoms, showed delta-theta activity predominant over the occipital regions. Resolution of these abnormalities during follow-up was observed in all patients. We wish to stress the danger of misinterpretation of the slow wave activity in the EEG of patients with BM attacks. Together with the clinical findings and their evolution, EEG results should not be interpreted as a sign of a structural brain-stem lesion, such as infarction or inflammation.
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