Differential Diagnosis
A differential diagnosis should include:
- Thrombosis of the basilar artery
- Cardioembolic stroke
- Complex partial seizures
- Frontal lobe epilepsy
- Lacunar syndromes
- Migraine variants
- Posterior cerebral artery stroke
- Syncope and related paroxysmal spells
- Temporal lobe epilepsy
If the event lasts less than one hour, transient epileptic amnesia (TEA) might be implicated.
If the condition lasts longer than 24 hours, it is not considered TGA by definition. A diagnostic investigation would then probably focus on some form of undetected ischemic attack or cranial bleed.
Read more about this topic: Transient Global Amnesia
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