Fig. 1

EEG recordings of case 1. a 2.5- to 3.5-Hz generalized spike-and-wave discharges associated with symptoms of being confused, slow in speech and disoriented. b The EEG started to return to normal once the patient was given intravenous administration of 10 mg of diazepam. c Resolution of generalized spike and-wave pattern within 2 min after intravenous administration of 10 mg of diazepam. d Thirty minutes later, EEG showed 2.5- to 3-Hz spike-and-wave, spikes and slow waves with frontal and central predominance again. e Within 3 min after another 10 mg of diazepam, normal background EEG rhythms reappeared. f Although the EEG evolved into spike-and-wave pattern again, the patient became free from symptoms: being clear in consciousness, fluent in speech and capable of responding correctly. g The EEG returned to normal eventually with a total clinical remission