We studied quantitative electrocorticography (ECoG) in 33 patients with medically refractory partial seizures who underwent temporal lobectomy. Preresection of ECoG revealed epileptiform abnormalities in areas that were not involved on scalp EEG in 8 patients. Twenty-six patients had epileptiform activity on ECoG posterior to the anticipated surgical margin. There were no significant outcome differences between patients with and without epileptiform activity on postresection ECoG. However, patients with 5 or less spikes on postresection ECoG had a better outcome (72.7% grade I or II) versus those with more than 5 spikes (54.5%).
QUANTITATIVE ELECTROCORTICOGRAPHY IN PATIENTS UNDERGOING TEMPORAL LOBECTOMY / O. DEVINSKY, M. CANEVINI, S. SATO, E. BROMFIELD, C. KUFTA, W. THEODORE. - In: JOURNAL OF EPILEPSY. - ISSN 0896-6974. - 5:3(1992), pp. 178-185.
QUANTITATIVE ELECTROCORTICOGRAPHY IN PATIENTS UNDERGOING TEMPORAL LOBECTOMY
M. CANEVINISecondo
;
1992
Abstract
We studied quantitative electrocorticography (ECoG) in 33 patients with medically refractory partial seizures who underwent temporal lobectomy. Preresection of ECoG revealed epileptiform abnormalities in areas that were not involved on scalp EEG in 8 patients. Twenty-six patients had epileptiform activity on ECoG posterior to the anticipated surgical margin. There were no significant outcome differences between patients with and without epileptiform activity on postresection ECoG. However, patients with 5 or less spikes on postresection ECoG had a better outcome (72.7% grade I or II) versus those with more than 5 spikes (54.5%).
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