Short-term Prognosis After Emergency Department Diagnosis of TIA

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Abstract
Transient ischemic attacks (TIAs) are common1: approximately 300,000 TIAs occur each year in the United States based on recent estimates of stroke incidence.2,3 A recent survey suggested a much higher incidence, with 1 in 15 of those older than age 65 years reporting a history of TIA.4 About 15% of patients experiencing stroke report a history of TIA.5 Effective prevention of subsequent stroke in patients with TIAs could significantly reduce the overall stroke incidence.6