| Phenotype details |
birth at term, Apgar 4; infantile spasms, nonresponsive to ACTH, controlled with vigabatrin, 3y6m-complex partial seizures, 14y-recurrence of clusters of flexor spasms, now refractory; EEG 6m-hypsarrhythmia (resolved on vigabatrin), subsequently bihemispheric slowing, multifocal sharp waves; epileptic encephalopathy; mild motor delay, moderate to severe speech-language delay; 1st-grade level; movements slow with poor coordination; emotional lability, compulsive behaviors |