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.
Adapted from: Holmes GL. Classification of seizures and the epilepsies. In: Schachter SC, Schomer DL, eds. The comprehensive evaluation and treatment of epilepsy. San Diego, CA: Academic Press; 1997. p. 1-36.
With permission from Elsevier (www.elsevier.com)