Prospective observational cohort study of early recurrent TIA

OBJECTIVES: To evaluate the frequency, clinical and etiologic features, and short- and long-term outcomes of early recurrent TIA. METHODS: This prospective observational cohort study enrolled all consecutive patients with TIA referred to our emergency department and diagnosed by a vascular neurologist. Expedited assessment and best secondary prevention were performed within 24 hours. Primary endpoints were stroke and a composite outcome including stroke, acute coronary syndrome, and vascular death at 3, 12, and, for a subset of patients, 60 months; secondary outcomes were TIA relapse, cerebral hemorrhage, new-onset atrial fibrillation, and death resulting from other causes. Concordance between index TIA and subsequent stroke etiologies was also evaluated. RESULTS: score >6 predicted a higher risk of stroke recurrence over the entire follow-up. CONCLUSIONS: Our study evaluated long-term outcome after early recurrent TIA. Our observations support the importance of promptly detecting and treating patients with early recurrent TIAs to reduce the high early and long-term risk of poor clinical outcomes.