Ictal and interictal EEG findings in children with migraine

We describe the electroencephalographic findings in nine pediatric migraineurs during the ictal phase of pain. We observed abnormal patterns on electroencephalography (EEG) in seven patients with migraine with aura and in two patients with basilar migraine. These patients were also evaluated with EEG during headache-free interval, at least 7 days after the ictal event; these interictal findings were unremarkable, confirming the observations reported in the literature. Finally, we review migraine and its EEG characteristics as reported in the literature, and discuss the value of EEG performed during interictal and ictal phases of migraine.