The definition of a transient ischemic attack (TIA) has evolved over the past decade from a clinical diagnosis to a tissue-based definition based on neuroimaging results. TIA shares the same pathophysiology as stroke, which occurs in up to 5% of patients within 48 hours of the TIA and 10% within 90 days. This rate is decreasing, likely due to improved diagnostic and management strategies. Decision support scores have been developed to risk stratify patients, which include clinical and radiological elements. Antiplatelet and anticoagulant therapy, as well as carotid endarterectomy/stenting have been shown to reduce the stroke occurrence after TIA.
Keywords: Stroke; TIA; Transient ischemic attack.
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