Somatosensory Evoked Potential And Eeg In Children With Focal Idiopathic Epilepsies With And Without Evoked Spikes By Tapping Of The Feet Or Hands

The characteristics of SEP cortical components were studied in 40 children with focal idiopathic epilepsies of childhood. Twenty children had focal idiopathic epilepsies and evoked spikes (FIE-ES) on the EEG and 20 had benign focal epilepsy of childhood with centrotemporal spikes (CTE) but without evoked spikes (ES). These data were compared with those of a control group of 20 normal children. N35 high-amplitude component was more frequent in the CTE group than in the control group (p<0.001). P98 showed high amplitude in 50% of the children of FIE-ES group, and in none of the CTE and control groups (p<0.001). The P98 high amplitude component was more common in the FIE-ES group than in the other groups, and so was the N35 high amplitude component in the CTE group. Lateralization of high-amplitude components of N35 in the CTE group and of P98 in FIE group was not correlated with lateralization of epileptiform activity and evoked spikes. Based on our findings, there are SEPs cortical component differences in childhood focal idiopathic epilepsies according to occurrence or absence of ES.363194198DeMarco, P., Negrin, P., Parietal focal spikes evoked by contralateral tactile somatotopic stimulation in four non-epileptic subjects (1973) Bectroencephalogr Clin Neurophysiol, 34, pp. 308-312DeMarco, P., Evoked parietal spikes and childhood (1980) Arch Neurol, 37, pp. 291-292Dalla Bernadina, B., Sgro, V., Caraballo, R., Sleep and benign partial epilepsies of childhood: EEG and evoked potentials study (1991) Epilepsy Res, (SUPPL. 2), pp. 83-96Fonseca, L.C., Tedrus, G.M.A., Epilepsy syndromes in children with somatossensory evoked spikes (1994) Clin Electroencephalogr, 25, pp. 54-58Fonseca, L.C., Tedrus, G.M.A., Somatosensory evoked spikes and epilepsy seizures: A study of 385 cases (2000) Clin Electroencephalogr, 31, pp. 71-75Fonseca, L.C., Tedrus, G.M.A., Pontas evocadas por estímulos somatossensitivos e atividade epileptiforme no eletrencefalograma em criancas normais (2003) Arq Neuropsiquiatr, 61, pp. 793-795Farnarier, G., Bureau, M., Mancini, J., Regis, H., Etude des potentiels evoqués multimodalitaires dans les épilepsies partielles de l'enfant (1988) Neurophysiol Clin, 18, pp. 243-254Tassinari, C.A., DeMarco, P., Plasmati, R., Extreme somatosensory evoked potentials elicited by tapping of hands and feet in children: A somatosensory cerebral evoked potentials study (1988) Neurophysiol Clin, 18, pp. 123-128Plasmatti, R., Michelucci, R., Forti, A., The neurophysiological features of benign partial epilepsy with rolandic spikes (1992) Epilepsy Res, (SUPPL. 6), pp. 45-48Plasmati, R., Michelucci, R., Savi, F., Giant somatosensory responses evoked by electrical and mechanical stimulation in idiopathic epilepsies of childhood (1990) Neurology, 40, p. 320Plasmati, R., Borghi, A.M., Lucchi, D., Somatosensory evoked potentials in patients with benign epilepsy with rolandic spikes (1996) Epilepsia, 37, p. 88Calzolari, S., Rozza, L., DeMarco, P., Median nerve middle-long latency somatosensory evoked potentials in children with tactile evoked spikes (1997) J Clin Neurophysiol, 14, pp. 523-528Kubota, M., Takeshita, K., Sakakihara, Y., Yanagisawa, M., Magnetoencephalografic study of giant somatosensory evoked responses in patients with rolandic epilepsy (2000) J Child Neurology, 15, pp. 370-379Proposal for revised classification of epilepsies and epileptic syndromes (1989) Epilepsia, 30, pp. 389-399Dalla Bernadina, B., Chiamenti, C., Capovilla, G., Colamaria, V., Benign partial epilepsies in childhood (1985) Epileptic Syndromes in Infancy, Chilhood and Adolescense, pp. 137-149. , Roger J, Bureau M, Dravet C, Dreifuss FE, Perret A, Wolf P, (eds). London, Paris: John Ubbey EurotextFerri, R., Del Gracco, S., Elia, M., Musumeci, S.A., Age-related changes of cortical excitability in subjects with sleep-enhanced centrotemporal spikes: A somatosensory evoked potentials study (2000) Clin Neurophysiol, 111, pp. 591-599Micheloyannis, J., Samara, C., Liakakos, T., Giant somatosensory evoked potentials in children without myoclonic epilepsy (1989) Acta Neurol Scand, 79, pp. 146-149Manganotti, P., Zanette, G., Contribution of motor cortex in generation of evoked spikes in patients with benign rolandic epilepsy (2000) Clin Neurophysiol, 111, pp. 964-974Manganotti, P., Zanette, G., Beltramello, A., Spike topography and functional magnetic resonance imaging (fMRI) in benign rolandic epilepsy with spike evoked by tapping stimulation (1998) Electroencephalogr Clin Neurophysiol, 107, pp. 88-9