Meanings of ictal events in English

Intracranial monitoring lasted an average of 8.2 days, with ictal events recorded in all cases.

Sleep stages were visually scored following standard criteria, and ictal events were classified according to the international classification of seizures.

Results: Current source density and simultaneous multiunit activity analyses indicate that the ictal events of spasms are initiated in infragranular cortical layers.

Nine of 17 patients had seizures during the polysomnographic recording; nocturnal ictal events occurred mostly during non-REM sleep stage 2.