Diagnosis and initial management of transient ischaemic attack.

Transient ischaemic attack (TIA) is the sudden onset of focal neurological dysfunction of presumed vascular origin that, by definition, resolves within 24 hours (usually much sooner). Its importance as a predictor of completed stroke has only recently been recognised. Updated guidance on the recognition and management of TIA has recently been published as part of the National Clinical Guideline for Stroke. This is a concise version of the TIA component of the full guideline that recommends an urgent response to TIA to prevent subsequent stroke.