ictal

Full Definition

The term 'ictal' describes phenomena that occur during the actual seizure event, as opposed to interictal (between seizures) or postictal (after seizures) periods. Ictal manifestations include the specific symptoms and signs observed during the seizure, such as motor movements, altered consciousness, or autonomic changes. Ictal EEG recordings capture the electrical activity during seizures and are crucial for seizure localization and classification. Understanding the ictal semiology helps determine seizure type and appropriate treatment.

Usage

Usage note: From Latin 'ictus' meaning stroke or seizure. Commonly combined with other terms (ictal phase, ictal symptoms).

In Context

• "The ictal EEG showed rhythmic theta activity in the left temporal region." — EEG monitoring report
• "Ictal symptoms included right arm tonic posturing and impaired awareness." — Seizure description