Figure 1 (Continued).

Summary of the clinical course of the patient (A). Seizures occurred approximately 10 times/d during the first month after the seizure onset. One and a half months later, the patient's condition deteriorated with epileptic spasms occurring in clusters accompanied by hypsarrhythmia on EEG (B). Several days after adding vigabatrin, the patient became seizure-free and her condition steadily improved, but still with hypsarrhythmia 1 mo later (C). EEG = electroencephalography.