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Epilepsy Behav Case Rep. 2014 May 4;2:100-1. doi: 10.1016/j.ebcr.2014.03.008. eCollection 2014.

Transient global amnesia mimics: Transient epileptic amnesia.

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1
Department of Neurology, Geneva University Hospital, Switzerland.

Abstract

We describe the case of a 79-year-old patient referred for suspected transient global amnesia, after an episode of anterograde amnesia which lasted 90 min. An EEG, performed after the episode, showed bilateral temporal electrographic seizures, orienting the diagnosis toward a transient epileptic amnesia. Transient epileptic amnesia is defined by temporal lobe epilepsy characterized by recurrent transient amnestic episodes of 30-90 min in duration, sometimes associated with olfactory hallucinations or oral automatisms. Response to antiepileptic drugs is excellent. We would like to raise awareness toward this epileptic amnesia when facing atypical or recurrent transient amnestic episodes.

KEYWORDS:

AEDs, antiepileptic drugs; EEG, electroencephalogram; TEA, transient epileptic amnesia; TGA, transient global amnesia; Temporal lobe epilepsy; Transient epileptic amnesia; Transient global amnesia

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