Diagnostic Approach to Transient Global Amnesia

Diagnostic Considerations

The European Society of Cardiology suggests ruling out conditions that mimic TGA but require urgent treatment, including stroke and TIA, which share overlapping features but carry significantly worse prognosis, and epileptic seizures, which may present with acute confusion and memory impairment 1
Routine MRI is not recommended in typical TGA without focal neurological signs, according to the American Academy of Neurology, but consider neuroimaging if the patient has focal neurological symptoms, recurrent or brief episodes, or suspected alternative etiologies 2

The American Heart Association indicates that unlike TIA, TGA does not require aggressive cardiovascular risk factor modification, as there is no increased risk of stroke or cardiovascular events in patients who have had TGA, and mortality rates are not elevated in TGA patients 3, 4, 5
The American Academy of Neurology recommends against inappropriate antiplatelet or anticoagulation therapy with bleeding risks, unnecessary statin therapy, and patient anxiety about stroke risk, as these are not warranted for TGA patients 4, 5