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KMID : 0351619770180010095
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Kyungpook Medical Journal
1977 Volume.18 No. 1 p.95 ~ p.104
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Electroencephalographical Findings in Childhood Epileptics
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Abstract
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In order to determine the factors affecting EEG findings in childhood epileptics, the I:LG records and clinical data in 267 children who had the episod´.es of convulsive seizure of unknown causes were analysed. The selected examinees were those w:ho had been taken EEG examination at Kyungpook National University Hospital during the period of 19731976.
Out of the total 267 cases 175(65.5%) showed abnormal EEG. The incidence of abnormal LEG stood highest in the age group under 3years (55%).
The incidence of abnormal EEG in females was significantly higher than that in males, especially :in the age group of 7-9 years.
In the wave patterns of abnormal EEG, the most frequently encountered was slow waves, and followed by the mixture of various wave patterns, isolted spikes, spike and wave in the order of lesser frequency.
The extent of abnormal waves was 43% for generalized, 9:3% for localized, and 14 %for focal; the praportion of generalized abnormalities was significantly- higher in the younger age group than in the .older group, whereas in the older age group localized abnormalities were conspicuously greater in proportion..
The frontal area was most frequent site of localization (57%), and next came temporal, parietal, occipital area in the order of decreasing frequency.
In the degree of EEG abnormality with regard to age group, the proportion of severe abnormality in the younger group was prominently higher than that in older group.
It seems likely that the frequency of seizure, the time elapsed from last seizure to EEG tracing, and anticonvulsant medication failed to have a sensitive influence on the degree, extent and incidence of abnormal EEG.
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