NEWMAN H W
Calif Med. 1954 Feb;80(2):59-61.
In light of the considerable divergence of opinion among various investigators regarding the incidence of electroencephalographic abnormality in patients with convulsive disorders, the author made a study of his own records of 430 patients with a diagnosis of epilepsy. In 122 the seizures were symptomatic, in the remainder idiopathic, and the overall incidence of electroencephalographic abnormality was little different in the two groups. In the whole series 64.9 per cent showed abnormal tracings, while in those under 16 years of age the incidence was 71.8 per cent. The highest incidence was in patients in whom seizures had begun when they were between 10 and 15 years of age and in those with a duration of seizures from 5 to 10 years. Of patients with clinical petit mal, 76 per cent had abnormal records, but only 34.6 showed petit mal complexes. Lateralized or focal abnormality was three times as frequent in the symptomatic as in the idiopathic group.
鉴于不同研究者对于惊厥性疾病患者脑电图异常发生率的观点存在相当大的分歧，作者对自己记录的430例诊断为癫痫的患者进行了研究。其中122例发作是症状性的，其余为特发性的，两组脑电图异常的总体发生率几乎没有差异。在整个系列中，64.9%显示有异常记录，而16岁以下患者的发生率为71.8%。发生率最高的是那些在10至15岁开始发作的患者以及发作持续时间为5至10年的患者。临床失神发作患者中，76%有异常记录，但只有34.6%显示有失神发作复合体。症状性组中侧化或局灶性异常的发生率是特发性组的三倍。
