Transient global amneisa history and symptoms
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History
- Transient global amnesia typically presents with a sudden onset of memory disturbance in a middle-aged or older person.[1]
- The episode is characterized by complete inability to retain new information for several hours.[2]˒[3]
- During the attack, there is anterograde amnesia together with a period of retrograde amnesia that may extend back for hours, days, or longer.[3]
- Patients often reveal their difficulty through repetitive, stereotyped questions, sometimes asked repeatedly at short intervals.[2]
- Personal identity is preserved, and patients can usually state their name and recognize close relatives.[3]
- Episodes may be preceded by physical or mental shock or extreme exertion, such as cold-water exposure, news of a death, sexual intercourse, assault, medical procedures, or severe pain, although many cases have no obvious precipitant.[1]
Symptoms
- Sudden inability to form new memories.[2]˒[3]
- Retrograde memory loss for a period before the event.[3]
- Repetitive questioning.[2]
- Preserved alertness and preservation of other cognitive functions apart from memory.[3]
- No loss of personal identity.[3]
- After the episode, some patients report a mild headache.
- Nausea and dizziness have been reported infrequently.
References
- ↑ 1.0 1.1 Miller JW, Petersen RC, Metter EJ, Millikan CH, Yanagihara T (May 1987). "Transient global amnesia: clinical characteristics and prognosis". Neurology. 37 (5): 733–7. doi:10.1212/wnl.37.5.733. PMID 3574671.
- ↑ 2.0 2.1 2.2 2.3 Caplan LR (October 2022). "Transient global amnesia. What's in a name?". J Neurol Sci. 441: 120348. doi:10.1016/j.jns.2022.120348. PMID 35940029 Check
|pmid=value (help). - ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 Hodges JR, Warlow CP (October 1990). "Syndromes of transient amnesia: towards a classification. A study of 153 cases". J Neurol Neurosurg Psychiatry. 53 (10): 834–43. doi:10.1136/jnnp.53.10.834. PMC 488242. PMID 2266362.