Picture 5. Wakefulness EEG findings showing focal bursts of left-sided parieto-occipital and temporal spike-wave discharges.
During a period of a year, the boy had one tonic-clonic generalized seizure per month, and no focal seizures were noted. The wakefulness EEG findings revealed basic brain activity of regular alpha rhythm with intermittent photic stimulation and hyperventilation activation of focal bursts of frontal and temporal spike-and-waves.
A round two-year period of focal seizures followed, and the wakefulness EEG findings showed regular alpha activity with multifocal bilateral paroxysmal discharges of spike-and-wave 2 c/s, lasting 3-4 seconds (see picture 6).