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EEG and epilepsy

Editor,—We welcome the debate on the timing of EEG examinations.1 The practice of delaying the EEG until after a second seizure began when epilepsy syndromes were unrecognised. The EEG was then of little help in predicting prognosis or guiding treatment, but has been transformed by the recognition of epilepsy syndromes. Although some of these syndromes may be difficult to diagnose,2 others—for example, benign childhood epilepsy with centrotemporal spikes, and juvenile myoclonic epilepsy, have easily recognised clinical …