Análisis espectral del electroencefalograma en pacientes con epilepsia rolándica

objective: to describe abnormalities of the background activity by quantitative analysis in patients with rolandic epilepsy. methods: visual (29 patients) and quantitative eeg (qeeg) (26 patients) analyses were done. absolute and relative power values obtained in the patients were compared with those from a normative database (z-maps). results: q-eeg results showed a significative changes in a 73,08 % of the patients: 73,68 % in slow frequency and 26,31 % in rapid frequency. a focal significative increase in slow frequency in centro-temporal and/or centro-parietal regions was observed in 64,28 %, in the same regions and extratemporal regions in 21,43 % and only slow activity extratemporal in 14,28 % of the patients. conclusions: significative variations in background activity in patients with rolandic epilepsy, suggests a possible relation with the presence of interictal epileptiform discharges or a certain age-related functional immaturity.