I have presented data on 182 patients with epilepsy who were examined between the year 1966 and September 1974 and in who an electroencephalographic study has been carried out. 182 patients have been examined at the Seoul National University hospital. The fits were not associated with any other known organic disease.
The following conclusions can be drawn by comparing the etiology, the clinical picture and the electroencephalographic findings in the present material: 142 (77.6%) had grand mal, 14 (7.7%) petit mal and 27(14x7%) psychemotor seizures. Among petit mal seizures, 4(2.2%) had pure petit mal, 7 (3.8%) infantile spasm and 3(1.696) akinetic seizures.
The age of first physical examination were not characteristic in grand mal but specific age distribution were noted in petit mal and psycomotor seizures.
The age of onset of fits were characteristic in petit mal. Pure petit mal, infantile spasm and akinetic seizure began from one to nine years of age, under three years of age and from one to five years of age, respectively. Psychomotor seizure began from one to nine years of age.
There was an excess of boys. Male to femlea ratio was 1.5 to 1. Only a minority of the children had had perinatal abnormaltiy. Postnatal brain damage were slightly more frequent than perinatal abnormality. Among postnatal abnormality trauma and inflammation were most frequent.
The attacks occured most often irregularly in day and night. Attacks during sleep were more frequent than those of awakening period.
Hyperkinetic behavior were most frequent in behavior and emotional disturbances.
In EEG, slow wave, wave burst were most frequent and single spike, multiple spike, irregular spikes and waves were in order in frequency.
Three cycles per second spike and wave in pure petit mal and hypsarrhythmia in infantile spasm were revealed in all cases. These findings correlated with clinical findings well.
Normal electroencephalography revealed in 13.3% of total cases. Good seizure control can be achieved in 55.9% of patients.
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