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Transient global amnesia - UpToDate

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Transient global amnesia INTRODUCTION Transient global amnesia (TGA) is a clinical syndrome characterized by the acute onset of anterograde amnesia (the inability to form new memories) [1-4]. Patients with TGA frequently ask repetitive questions reflecting disorientation and may have variable inability to recall general or personal information (retrograde amnesia) while the episode lasts. During the episode of TGA, other cognitive functions are normal. Episodes are self-limited, and by definition resolve within 24 hours, with recovery of the symptoms of memory function, except for what…

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