Every individual has many incidents stored in his memory. Memory played an extremely important part of the development of human society. Memory improvement techniques are pretty simple to learn but they require a lot of practice and constant use, otherwise there is hardly any benefits.
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Thursday, April 19, 2018

Transient global amnesia

Transient global amnesia is a sudden and temporary impairment of memory that lasts up to 24 hours. During transient global amnesia a person is not able to recall new information (anterograde amnesia), and may also have difficulty recalling old memories (retrograde amnesia).

The main symptom of transient global amnesia is repetitive questioning and disorientation. During the attack the person is alert and able to communicate and remains aware of their personal identity. The patient maintains personal knowledge, usually knowledge of family members, preserved remote memories and intellect.

Transient global amnesia typically occurs in an elderly or middle-aged patient, lasts from 1 to 24 h, and then resolves spontaneously and completely. It has an incidence of five per 100,000 populations per year. There has been no racial or sexual predilection reported. Precipitating events such as cold temperature, sexual intercourse, and compromising situations (e.g., an elderly man in the midst of an extramarital affair, or bathing in the cold waters of the North Atlantic) have been reported in some cases.

Patients are often noted to have a high level of agitation and anxiety. This can lead to repetition and perseveration with those affected typically asking the same questions again and again in a very methodical manner, and often with similar gestures and vocal intonation.

The most widely accepted view was that transient global amnesia is due to thromboembolic cerebrovascular disease; some authors have advocated an epileptic cause and aetiological claims have also been made for migraine.

In addition, single cases have been reported in association with a wide range of conditions including brain tumors, drug over-dosage, polycythemia and intra-cerebral and subarachnoid hemorrhage.
Transient global amnesia

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