title: [Irritative midline and parasaggital foci: a clinical and electroencephalographic correlation].
abstract: We report the clinical and electroencephalographic characteristics of thirteen patients with midline spikes (MS), parasaggital foci (PF), or both. Numerous clinical manifestations, including generalized tonic-clonic, complex partial and partial with secondary generalization could be demonstrated. The pattern of the epileptiform manifestation is unpredictable; however, we find generalized tonic-clonic seizure the commonest type (60%). Unfortunately, this data has no statistic value. Neurologic examination was normal in the majority of the patients. Regarding age, there is a marked predominance of children (84%) with MS and/or PF. Sleep constitutes the main activation method (73%) in the search for this kind of epileptiform activity. In conclusion, although the incidence of the MS/PF is quite low (0.4%), the high epileptogenic potential (70%) of them justifies a careful and adequate evaluation of these regions. Special attention must be paid to the normal sleep complexes, mainly in children, which sometimes can mimic true epileptiform activity.
authors: Eletroencefalografia Clínica (EEG), Hospital de Clínicas, Universidade Federal do Paraná (HCUFPR), Brasil.
authors: L
authors: L
authors: de Paola
authors: M O
authors: MO
authors: Balliana
authors: C E
authors: CE
authors: Silvano
authors: D
authors: D
authors: de Paola
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D004569:Electroencephalography; D004828:Epilepsies, Partial / Q000503:physiopathology*; D006801:Humans; D008991:Monitoring, Physiologic; D011379:Prognosis; D012189:Retrospective Studies; D012890:Sleep / Q000502:physiology
vernacular_title: Focos irritativos parassagitais e de linha média: correlação clínico-eletrencefalográfica.