ictal
Pronunciation: IK-tal
Relating to or occurring during an epileptic seizure episode.
Full Definition
Ictal refers to the period during which an epileptic seizure is actively occurring, from onset through termination. This term is used to describe phenomena, symptoms, or findings that manifest specifically during seizure activity. Ictal events contrast with interictal (between seizures) and postictal (after seizure) periods. In clinical documentation, ictal phenomena may include altered consciousness, motor manifestations, autonomic changes, or behavioral automatisms. Ictal EEG changes are crucial for seizure localization and classification in epilepsy evaluation.
Usage
Usage note: Always distinguish from postictal and interictal when describing seizure-related phenomena.
In Context
- "Ictal EEG demonstrated rhythmic theta activity in the left temporal region." — EEG interpretation report
- "The patient exhibited ictal automatisms including lip smacking and fumbling movements." — Seizure semiology description