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transient global amnesia
Etiology:
- associated with triggers that cause transient intracranial venous hypertension
- Valsalva maneuver
- sexual activity
- emotional shock
- risk factors for recurrence
- earlier age of 1st episode
- history of migraine or family history of migraine
Epidemiology:
- middle age or older adults
Clinical manifestations:
- antegrade amnesia, profound memory loss & disorientation
- duration 4-6 hours
Radiology:
- neuroimaging, usually are normal
Complications:
- often no sequelae occur
General
amnesia
References
- Morris KA, Rabinstein AA, Young NP et al.
Factors associated with risk of recurrent transient global amnesia.
JAMA Neurol 2020 Aug 31; [e-pub]
PMID: 32865551
https://jamanetwork.com/journals/jamaneurology/fullarticle/2770030