ED evaluation of transient global amnesia.

Transient global amnesia is an unusual syndrome involving a transient memory loss and inability to form new memories, without affecting other cognitive functions. Although the patient often lacks insight into the problem, the syndrome is very frightening for family members, who frequently present to the ED. The evaluation of the syndrome is the subject of some controversy. This review presents current understanding about the causes of transient global amnesia and an approach to the ED evaluation of the syndrome.