Fonseca L C, Tedrus G M
Department of Neuropsychiatry, Pontificia Universidade Católica de Campinas, Brazil.
Clin Electroencephalogr. 2000 Apr;31(2):71-5. doi: 10.1177/155005940003100204.
We examined 385 children whose EEG showed high voltage potentials evoked by taps applied to one or both feet or hands (SES). The relationship between characteristics of SES and the occurrence of epileptic seizures and the characterization of epileptic syndromes were studied. Ninety-one children (23.6%) had epilepsy, 42 (10.9%) had only febrile convulsions and 252 children had other complaints. Epilepsy occurred in a higher proportion of cases when: SES by foot tapping were multiphasic, with high amplitude or SES were obtained by hand stimulation and there was spontaneous epileptiform activity in the EEG. The following epileptic syndromes were diagnosed: benign childhood epilepsy with centrotemporal spikes in 21 cases, benign epilepsy of childhood with occipital paroxysms in 2, benign psychomotor epilepsy in 1, "partial idiopathic others" in 43, generalized idiopathic in 8, symptomatic epilepsies in 13 and undetermined in 3 cases. In most cases SES were observed in children without evidence of cerebral organic lesion, suggesting the existence of an age-related, functional mechanism. Some characteristics of SES and the occurrence of spontaneous epileptiform activity showed a positive association with epileptic seizures. SES occurred in different types of partial and generalized epilepsies of childhood but in nearly 50% of the cases with epilepsy, there was a benign condition involving mainly the parietal lobe with versive, unilateral and sleep-generalized seizures.
我们检查了385名儿童，他们的脑电图显示，轻拍一只或两只脚或手（体感诱发电位）可诱发高电压电位。研究了体感诱发电位的特征与癫痫发作的发生以及癫痫综合征的特征之间的关系。91名儿童（23.6%）患有癫痫，42名（10.9%）仅有热性惊厥，252名儿童有其他病症。当出现以下情况时，癫痫的发生率较高：通过足部轻拍获得的体感诱发电位为多相、高振幅，或通过手部刺激获得体感诱发电位，且脑电图中有自发癫痫样活动。诊断出以下癫痫综合征：21例为伴有中央颞区棘波的儿童良性癫痫，2例为伴有枕叶阵发的儿童良性癫痫，1例为良性精神运动性癫痫，43例为“部分特发性其他类型”，8例为全身性特发性癫痫，13例为症状性癫痫，3例未明确。在大多数情况下，在没有脑器质性病变证据的儿童中观察到体感诱发电位，这表明存在一种与年龄相关的功能机制。体感诱发电位的一些特征和自发癫痫样活动的出现与癫痫发作呈正相关。体感诱发电位出现在儿童不同类型的部分性和全身性癫痫中，但在近50%的癫痫病例中，存在一种主要累及顶叶的良性病症，伴有旋转性、单侧性和睡眠全身性发作。
