The purpose of this symposium is to review recent advances in child epileptology. Seven symposiasts discussed various aspects of clinical and basic epileptology ranging from classification, diagnosis, pathophysiology to drug therapy and comprehensive treatment.
We designed a new cassette EEG recording system which consists of a recording block (an ambulatorytype data recorder and a newly developed pre-amplifier) and a reproduction block (a fixed-type data recorder, a personal computer equipped with A/D converting board and an intervening EEG device for a bandpass filter). This system was applied to 36 epileptic children, and 33 ictal records were obtained. The seizure type could be precisely classified by a comparative analysis of the data computed from this system and from the ictal symptoms. Three representative cases were presented with actual analysis procedures.
てんかんと睡眠の関連につきこれまでの知見を概観し, 特に徐波睡眠中広汎性棘徐波の連続する非痙攣性てんかん重積状態すなわちepilepsy with electrical status epilepticus duringslow sleep, peculiar type of non convulsive status epilepticus in childhood, atypical benignpartialepilepsyにつき臨床的脳波学的に検討した. 前2者において高率に知的退行がみられ, これは上記脳波像の最終抑制年齢および徐波睡眠でのspike-wave indexと相関していた. 3病型とも思春期前は難治であるが, 16歳までに寛解し年齢依存性の病態が示唆された. またcoherenceand phase analysisによりsecondary bilateral synchronyが多数を占めることが示された.