Transient Global Amnesia Due to Hippocampal Infarction

Shin, Joon Hyun; Yu, Kyung Ho; Lee, Bo Ram; Lee, Byung Chul

Original Article

Journal of the Korean Geriatrics Society 2000;4(4):288-292.
Published online December 31, 2000.

Transient Global Amnesia Due to Hippocampal Infarction

Joon Hyun Shin, Kyung Ho Yu, Bo Ram Lee, Byung Chul Lee

해마부 뇌경색에 의한 일과성 구상 건망증

Abstract

Transient global amnesia(TGA) is not a rare event in the elderly, which is characterized by transient inability to form the new memory traces plus retrograde amnesia with benign prognosis. The etiology is unknown, but suggested causes have included transient ischemic attack, migraine, epilepsy, brain tumor, drug intoxication, other toxic/metabolic disturbances, or hysteria. Especially, TGA associated with ischemic stroke is important on the elderly patients and necessary to be differentiated with other causes, for stroke prevention. As far as we know, the case of TGA due to cerebral infarction confirmed by brain imaging study is extremely rare in the literature. We report the case of 67 year-old female patient with typical TGA showing ischemic lesion on the right temporal area on MRI and discussed its significance as one of the cause of TGA.

Key Words: Transient global amnesia, Cerebral infarction

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