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Risk of major vascular events in patients without traditional risk factors after transient ischemic attack or minor ischemic stroke: An international prospective cohort.
Risk of major vascular events in patients without traditional risk factors after transient ischemic attack or minor ischemic stroke: An international prospective cohort. European stroke journal Uchiyama, S., Hoshino, T., Minematsu, K., Meledje, M. L., Charles, H., Albers, G. W., Caplan, L. R., Donnan, G. A., Ferro, J. M., Hennerici, M. G., Molina, C., Rothwell, P. M., Wong, L. K., Amarenco, P. 2024: 23969873241300071Abstract
To investigate the clinical characteristics in patients without traditional risk factors (TRFs) after transient ischemic attack or minor ischemic stroke, who were recruited in the TIAregistry.org.A total of 3847 patients were analyzed. TRFs included hypertension, diabetes, hypercholesterolemia, current smoking, and atrial fibrillation. Background characteristics and outcomes at 1 and 5?years in patients without TRFs were compared to those in patients with TRFs. The primary outcome was major cardiovascular event (MACE), which was non-fatal stroke, non-fatal acute coronary syndrome, or vascular death. To evaluate the causes, we applied the ASCOD (atherosclerosis, small vessel disease, cardiac pathology, other causes or dissection) grading system.One-year risk of MACE (5.3% vs 6.3%, hazard ratio (HR) 0.84, 95% confidence interval (CI) 0.53-1.31) was comparable between patients without TRFs (n?=?402) and those with TRFs (n?=?3445). Five-year risk of MACE was significantly lower in patients without TRFs than in those with TRFs (7.9% vs 13.9%, HR 0.57, 95% CI 0.39-0.82). In patients without TRFs, causal atherosclerosis was a potent risk factor (HR 5.67, 95% CI 2.68-12.02) and ipsilateral extra- or intra-cranial arterial stenosis was only significant predictor of MACE (interaction p?=?0.0046) at 5?years.The 5-year risk of MACE was lower in patients without TRFs than those with TRFs, although a certain level of risk persisted in the absence of TRFs. The most significant predictor of MACE in patients without TRFs was arterial stenosis.
View details for DOI 10.1177/23969873241300071
View details for PubMedID 39569585