Epileptic amnesia

Is dissociative amnesia different from simple amnesia? Can epilepsy cause amnesia? What does an epileptic seizure sound like? What is acquired epileptic aphasia?

The duration of episodes of amnesia is usually less than an hour.

The attacks are frequent, usually around times each year in untreated patients. Two third of patients also. The spells tend to occur on waking from sleep. A diagnosis of TEA requires the following: Recurrent witnessed episodes of amnesia.

Cognitive functions besides memory remain intact (e.g. language, attention and decision-making). Evidence for the diagnosis of epilepsy. The experience of other common epileptic symptoms , such.

Consequently, transient epileptic amnesia may be readily misdiagnosed as a nonepileptic memory dysfunction in older individuals. Transient epileptic amnesia is a rare but probably underrecognized form of temporal lobe epilepsy , which typically manifests as episodic isolated memory loss. Attacks must be witnessed and information given by a capable observer who was present for most. Clear-cut anterograde amnesia during the attack.

No change in level of consciousness or cognition (except for amnesia ). No focal neurological symptoms during the attack and no significant. Patients with TEA usually cannot remember the episodes. Electroencephalographic (EEG) abnormalities are usually localized on the dominant or bilateral temporal lobes. This is called transient epileptic amnesia (TEA).

This type of epilepsy mainly affects middle-aged adults. Seizures occur about once a month. People with TEA often find they forget recent memories quickly, but they also forget important episodes in their own lives, often from years before they developed epilepsy.

It is associated with novel forms of interictal memory disturbance: accelerated long-term forgetting,. In addition to the amnesic episodes, many patients describe significant interictal memory difficulties. Performance on standard neuropsychological tests is often normal.

For many years this condition has been associated with the nonepileptic condition of transient global amnesia (TGA) and still today is poorly recognized by clinicians. Description of a Transient Epileptic Attack (TEA) Before: An individual may be made aware that an attack is about to begin by a feeling of discomfort in the stomach or by the detection of a strange smell or a taste in the mouth. Others, however, will have no warning before the onset of memory loss.

Objective: Characterize the demographic, clinical, electrographic, and neuroimaging profiles of transient epileptic amnesia (TEA). Background: TEA is a focal epilepsy characterized by transient episodes of isolated amnesia. With typical onset in late adulthood and frequent interictal memory impairment,. It represents an underdiagnosed type of temporal lobe epilepsy.

Summary Describe diagnostic criteria for transient epileptic amnesia (TEA). Distinguish clinical features of TEA from transient global amnesia and psychogenic amnesia. Recognize the types of persistent amnesia seen in patients with TEA. Identify the most likely anatomic seizure focus of patients. Amnesia is often a symptom in epilepsy, and for that reason people with known epilepsy are disqualified from most studies of TGA.

In a study where strict criteria were applied to TGA diagnosis, no epileptic features were seen in EEGs of over 1patients with TGA.