[Irritative midline and parasaggital foci: a clinical and electroencephalographic correlation].
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.
de Paola
L
L
Eletroencefalografia Clínica (EEG), Hospital de Clínicas, Universidade Federal do Paraná (HCUFPR), Brasil.
Balliana
M O
MO
Silvano
C E
CE
de Paola
D
D
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
Focos irritativos parassagitais e de linha média: correlação clínico-eletrencefalográfica.