In addition, some patients with TEA also notice an impaired ability to navigate around new and familiar routes called topographical amnesia. Results from our studies have also shown that TEA is associated with two particular types of memory difficulty between attacks:Īccelerated forgetting and Autobiographical amnesia Transient epileptic amnesia (TEA) (which involves brief, recurrent, witnessed episodes of transient amnesia with evidence of EEG abnormalities) was also in the. Memory difficulties involve a mixture of anterograde and retrograde amnesia.Clinicians often make an incorrect initial diagnosis of the condition Transient epileptic amnesia (TEA) is an underestimated condition in emergency clinical setting, where most of transient amnesic episodes tend to be classified as transient global amnesia (TGA).Often associated with hallucinations of smell & involuntary movements (automatisms).The amnesic attacks are recurrent (average 12 per year).The amnesic attack is brief (typically 30-60 minutes duration).The syndrome predominantly occurs in men (male to female ratio 2:1).Onset typically occurs in late-middle to old age (median 62 years).A clear response to anti-epileptic drugsīutler and colleagues recruited 50 patients with TEA using these diagnostic criteria in order to assess the clinical features of the syndrome.The experience of other common epileptic symptoms, such as, involuntary movements, hallucinations of smell or feeling a swirling sensation in your tummy. Cognitive functions besides memory remain intact (e.g.Consequently, transient epileptic amnesia may be readily misdiagnosed as a nonepileptic memory dysfunction in older individuals. Recurrent witnessed episodes of amnesia Transient epileptic amnesia is a rare but probably underrecognized form of temporal lobe epilepsy, which typically manifests as episodic isolated memory loss.Distinguishing TEA from other causes of amnesic attacks is an important step in developing successful treatment programmes for this form of amnesia and its associated memory deficits.Ī diagnosis of TEA requires the following: The diagnosis of transient epileptic amnesia was made on the basis of the following criteria: (1) there was a history of recurrent witnessed episodes of transient amnesia (2) cognitive functions other than memory were judged to be intact during typical episodes by a reliable witness (3) there was evidence for a diagnosis of epilepsy. Transient epileptic amnesia (TEA) is a subtype of medial temporal lobe epilepsy with late onset. TEA is often misdiagnosed as either transient global amnesia (TGA) or psychogenic amnesia. It has recently been recognised that transient amnesia can also be caused by epilepsy. The main differential diagnosis is transient global amnesia (TGA). TEA is characterized by recurrent episodes of acute transient amnesia lasting less than one hour. There are a number of well recognised causes of transient amnesia, the most common probably being head injury, followed by transient global amnesia, migraine, drugs and rarely, transient ischemic attacks (“mini strokes”). Transient epileptic amnesia (TEA) is a subtype of medial temporal lobe epilepsy with late onset. “Transient amnesia” refers to repeated attacks of memory loss. Given the favourable outcome with antiseizure treatment, our case study illustrates the role of long-term EEG monitoring in patients with recurrent transient amnesia to establish a correct diagnosis. Treatment with levetiracetam resulted in complete recovery and seizure freedom that was confirmed on a second long-term EEG. MRI was normal and diagnosis was made using long-term EEG (27Â hours), revealing 10 right-sided temporal lobe seizures with subtle clinical symptoms lasting up to 86Â seconds. Here, we report a 58-year-old male patient with recurrent episodes of antero- and retrograde amnesia. Effective antiseizure treatment is usually rapid in patients with TEA, which underlines the need for prompt diagnosis. Seizures are characterized by amnesia, usually lasting less than one hour, and interictal memory deficits that are common. Transient epileptic amnesia (TEA) is a distinct syndrome affecting middle-aged persons without concurrent brain disease or disposition to epileptic seizures.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |