Changes of interictal epileptiform discharges during medication withdrawal and seizures: A scalp EEG marker of epileptogenicity

Autor: Pia De Stefano, Eric Ménétré, Serge Vulliémoz, Pieter Van Mierlo, Margitta Seeck
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Clinical Neurophysiology Practice, Vol 7, Iss , Pp 279-284 (2022)
Druh dokumentu: article
ISSN: 2467-981X
DOI: 10.1016/j.cnp.2022.09.004
Popis: Objective: To determine the influence of antiseizure medication (ASM) withdrawal on interictal epileptogenic discharges (IEDs) in scalp-EEG and seizure propensity. Methods: We included 35 adult unifocal epilepsy patients admitted for presurgical evaluation in the EEG and Epilepsy Unit of Geneva between 2016 and 2020, monitored for at least 5 days. ASM was individually tapered down, and automated IED detection was performed using Epilog PreOp (Epilog NV, Belgium, Ghent). We compared spike rate per hour (SR) at day 1 when patients were on full medication (baseline) with SR at the day with the lowest dose of medication. To determine possible peri-ictal changes of SR, we compared SR 8 h before and after a seizure with the SR at the same time of the baseline day. Results: Our results showed a significant increase in spiking activity in the day of lowest drug load if compared to spike rate at day on full medication (p
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