Prospective study of patients with TIA in an emergency department setting. Demographic data, vascular risk factors, and ABCD2 score were analysed. TIA aetiology was classified according to TOAST criteria. All patients underwent early vascular studies (< 72 hours), including TTE, carotid ultrasound, and transcranial Doppler. Primary endpoints were recurrence of stroke or TIA, myocardial infarction (MI), or vascular death during the first year.
We evaluated 92 patients enrolled over 24 months. Mean age was 68.3 ± 13 years and 61% were male. The mean ABCD2 score was 3 points (≥5 in 30%). The distribution of TIA subtypes was as follows: 12% large-artery atherosclerosis; 30% cardioembolism; 10% small-vessel occlusion; 40% undetermined cause; and 8% rare causes. Findings from the early TTE led to a change in treatment strategy in 6 patients (6.5%) who displayed normal physical examination and ECG findings. At one year of follow-up, 3 patients had experienced stroke (3.2%) and 1 patient experienced MI (1%); no vascular deaths were identified.
In our TIA patients, early vascular study and detecting patients with silent cardiomyopathy may have contributed to the low rate of vascular disease recurrence.