Epilepsy with grand mal seizures on awakening is an uncommon syndrome in which generalized tonic-clonic seizures occur exclusively or predominantly shortly after awakening.38 The onset is usually in the second decade. If patients have other seizure types, they are usually absence or myoclonic seizures. Photosensitivity is a common feature.
The EEG typically shows generalized spike-wave activity.
Reviewed and revised January 2004 by Gregory L. Holmes, MD, Dartmouth Medical School
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