Abstract

CABRERA P, Francisco; GUERRA O, Randy; FANDINO, Franky J  and  BARRIOS L., Andrés. Surface electroencephalogram and interictal epileptiform activity in children and teenagers with diagnosis of epilepsy. Acta Neurol Colomb. [online]. 2013, vol.29, n.2, pp.95-102. ISSN 0120-8748.

Introduction: electroencephalography studies (EEG) constitutes the technique of choice for the diagnosis and classification of epilepsies. Objective: the aim of this study was to determine surface electroencephalographic findings in pediatric population with epilepsy. Materials and methodos: a descriptive, retrospective, comparative study of 2 groups of patients diagnosed with epilepsy between the ages of 5 and 10 years (group 1) 10-19 years (group 2) By mean of conventional EEG register we determined the prevalence of abnormalities in each group. Results: (76.54%) of total discharge epileptiform activity findings, 72.6% were activated or increased by hyperventilation maneuver; 38.7% spontaneously activated by sleep stages I-II (p <0.05, 95%). The most compromised irritative area was left temporal with 29.51%, followed by (24.59%) of the frontal area. (22.58%) showed paroxysmal slow waves discharges, (21.1%) angular slow waves, spikes and spike-waves with 14.52% respectively (p<0.05, IC95%). Conclusions: surface electroencephalography evidence interictal epileptiform activity in wakefulness and spontaneous sleep in a high percentage of pediatric patients, being the left temporal and frontal areas the most irritatives zones. Paroxysmal slow wave was the most frequent interictal activity for children under 10 years of age, unlike spikes, edge waves and sharp waves that tend to appear in older children.

Keywords : Electroencephalography; Interictal; Epileptiform; Paroxysm.

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