Subjective and objective characteristics of altered consciousness during epileptic seizures

Epilepsy & Behavior : E&B
Nuria Campora, Silvia Kochen

Abstract

Conscious states are inner states and processes of awareness. These states are by definition subjective. We analyzed subjective and objective characteristics of alteration of consciousness (AOC) during epileptic seizures, including its involvement in both the level of awareness and subjective content of consciousness. We evaluated AOC using the Consciousness Seizure Scale, the Ictal Consciousness Inventory, and a new structured survey developed by our group: the Seizure Perception Survey, which incorporates patients' subjective experiences before and after they watch a video-electroencephalographic recording of their own seizure. We included 35 patients (105 seizures) with drug-resistant epilepsy. Most seizures caused profound AOC. The content of consciousness was lower during temporal seizures with profound AOC. We uncovered a correlation between the subjective perception and objective duration of a seizure using the Seizure Perception Survey regarding memory; the patients had a better recall of ictal onset during wakefulness regardless of the epileptogenic zone, laterality, or magnitude of AOC. Nonetheless, the recovery of memory at the end of a seizure took more time in patients who showed greater AOC, less vivid content of ...Continue Reading

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Citations

Aug 31, 2016·The International Journal of Neuroscience·Fangfang XieWei Shi
Sep 22, 2020·British Journal of Anaesthesia·Benjamin F Gruenbaum

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