Keyword Analysis & Research: ictal

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What is the meaning of ictal?

Freebase (0.00 / 0 votes)Rate this definition: Ictal refers to a physiologic state or event such as a seizure. The word originates from the Latin ictus, meaning a blow or a stroke. In electroencephalography, the recording during an actual seizure is said to be "ictal". There are four ictal states which include pre-ictal, ictal, post-ictal,...

What does ictal mean in EEG?

The word originates from the Latin word ictus, meaning a blow or a stroke. In electroencephalography (EEG), the recording during a seizure is said to be "ictal". The following definitions refer to the temporal relation with seizures.

What is the difference between the ictal and interictal period?

While the postictal period is considered to be the period shortly after a seizure where the brain is still recovering from the seizure, the ictal period is considered to be the seizure itself, and the interictal period to be the period between seizures, when brain activity is more normal and the preictal period that time before a seizure.

What is ictal (seizure) activity?

Ictal (seizure) activity may be manifested by rhythmic activity of many types. By definition, to be considered ictal, a given burst of activity must be associated with an abnormality of movement or mentation.


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