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Seizure vs Syncope

It can be difficult to differentiate seizures from syncope, but directed questions involving the semiology of the episode and associated symptoms can help differentiate the two.

Last updated 3/20/2026

Clinical features more suggestive of seizure

Common seizure semiologies

Clinical features more suggestive of syncope

Syncope triggers

Prior studies

Seizure vs Syncope | NeuroNav