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).