Journal article

Postictal suppression and seizure durations: A patient-specific, long-term iEEG analysis

Daniel E Payne, Philippa J Karoly, Dean R Freestone, Ray Boston, Wendyl D'Souza, Ewan Nurse, Levin Kuhlmann, Mark J Cook, David B Grayden

EPILEPSIA | WILEY | Published : 2018

Abstract

OBJECTIVE: We report on patient-specific durations of postictal periods in long-term intracranial electroencephalography (iEEG) recordings. The objective was to investigate the relationship between seizure duration and postictal suppression duration. METHODS: Long-term recording iEEG from 9 patients (>50 seizures recorded) were analyzed. In total, 2310 seizures were recorded during a total of 13.8 years of recording. Postictal suppression duration was calculated as the duration after seizure termination until total signal energy returned to background levels. The relationship between seizure duration and postictal suppression duration was quantified using the correlation coefficient (r). The..

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