| Phenotype details |
delayed development prior to seizure onset, sat-2.5y, no speech, standing with support, not walking; onset seizures 36m, drop attacks, severe intellectual disability, walks with assistance, reaches for spoon; focal impaired awareness seizures; seizure offset ongoing; EEG diffuse moderate background slowing, multifocal discharges, generalized spike-wave, generalised paroxysmal fast activity; MRI brain normal; episodes of hyperventilation, severe autistic behavior, no dysmorphic features |