![]() ![]() After these episodes, however, the patient remembered what happened during those events. The patient’s memories gradually returned over a period of 20 minutes. He continued to ask when the nephew was married and why he was married so early. ![]() The patient did not remember his nephew’s wedding, which had taken place 4 days prior. Similar symptoms were observed again on the next day. The symptoms lasted for about 10 minutes and then disappeared. He could not remember his job and kept asking why he had to go to work despite his wife’s repeated explanations. Two days before admission, the patient experienced an episode of transient amnesia that began abruptly during breakfast. The patient had no other notable past medical or psychiatric disease. We will then discuss the mechanisms underlying our observations.Ī 77-year-old right-handed man was admitted to our department with recurrent episodes of transient amnesia. These episodes were caused by non-dominant temporal lobe epilepsy. They were amnesic during the episodes, but remembered the events after the episodes. Here we report the cases of two patients with TEA who presented with amnesia with preserved consciousness. Although TEA is distinguished from TGA by a relatively brief duration (less than an hour), high frequency of episodes, common occurrence upon waking, patients with TEA generally cannot remember the amnestic episodes. TEA closely resembles TGA because transient amnesia is sometimes the sole manifestation of the seizures. 1, 2 Transient epileptic amnesia (TEA) is a sub-type of mesial temporal lobe epilepsy characterized by recurrent episodes of transient memory disturbances. TGA usually lasts for a few hours and is accompanied by typical behavioral changes. The most common cause of transient amnesia is transient global amnesia (TGA), which is characterized by the abrupt onset of anterograde amnesia without disturbances in other cognitive functions. Transient amnesia is a commonly encountered clinical manifestation with diverse causes. ![]()
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