てんかん性健忘

Epileptic Amnesia

「てんかん性健忘」の範疇で，認知症高齢者の増加に伴い重要な病態と認識されつつある「一過性てんかん性健忘（transient epileptic amnesia：TEA）」，それに高率で合併する「accelerated long-term forgetting（加速的長期健忘）」，「autobiographical amnesia（自伝的健忘）」，さらにTEA症候群の概念を拡張した「一過性てんかん性健忘複合症候群（TEA complex syndrome：TEACS）」の定義やその意義，もう1つの重要な病態である「アルツハイマー病類似てんかん性認知障害（epileptic cognitive impairment resembling Alzheimer disease：ECI-A）」について，自験例を挙げて解説した。

Abstract

With the rise in the number of elderly individuals with dementia, the importance of the following two types of epileptic amnesia has become increasingly recognized. One is transient epileptic amnesia (TEA), which is known to have a high frequency of complications such as accelerated long-term forgetting and autobiographical amnesia; the definition and significance of the TEA complex syndrome (TEACS), an extension of the TEA concept, are described. The other is epileptic cognitive impairment resembling Alzheimer's disease (ECI-A), the definition and characteristics of which are presented along with cases encountered by the author, as reported for TEACS.