Crisis del lóbulo temporal registrada mediante magnetoencefalografía: caso clínico

AUTOR(ES)

Amo, Carlos, Santiuste, Marta, Maestú, Fernando, Fernández, Alberto, Egatz, Renata, González-Hidalgo, Mercedes, Saldaña, Cristóbal, Sáiz, Antonio, Ortiz, Tomás

FONTE

Arquivos de Neuro-Psiquiatria

DATA DE PUBLICAÇÃO

2004-09

RESUMO

Ictal onset localization is a important factor in presurgical evaluation of epilepsy. This paper describes the localization of a seizure onset recorded by magnetoencephalography (MEG) from a 12-year-old male patient who suffered from complex partial drug-resistant seizures. MRI revealed a 20mm diameter lesion located in left hippocampus. Scalp EEG showed left temporal theta waves. Interictal MEG registrations detected isolated spike-wave activity posterior and inferior to the MRI lesion. Ictal MEG showed continuous spike-wave activity (2 Hz). Dipole localization sited seizure onset in the inferior left temporal gyrus, the same localization of the interictal MEG activity. This ictal activity spreads bilaterally to frontal areas. Intrasurgical electrocorticography recording confirmed interictal MEG results.

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