TIA- Transient ischemic attack:

Authors

  • ศรวิทย์ เจียรนัยศิลป์ คณะแพทยศาสตร์โรงพยาบาลรามาธิบดี มหาวิทยาลัยมหิดล

Keywords:

TIA, transient ischemic attack, stroke risk stratification, Atrial fibrillation, atherosclerosis, stroke prevention

Abstract

A transient ischemic attack (TIA) is a stroke-warning event and represents a neurological emergency. Patients presenting with a high-risk TIA or minor stroke should be evaluated promptly, ideally within 24 hours. Accurate diagnosis of a true TIA and differentiating it from its mimics is always importance. Acute TIA carries higher risk than events occurring for several weeks. The risk predicting score, such as ABCD2 score, has been used for clinical risk stratification. Brain imaging, usually with a non-contrast CT scan, is indicated to exclude other pathology such as tumor and hemorrhage. However, the test of choice for TIA patients is a MRI scan. TIA is not an etiologic diagnosis; there are many possible causes. Patients with symptomatic large artery atherosclerosis have a higher risk of early stroke recurrence compared to those of other common causes. Carotid endarterectomy for significant extra-cranial carotid stenosis is most effective when performed within the first two weeks after ischemic event and its benefit declines with time. Atrial fibrillation (AF) is the most common cardiac cause of stroke and anticoagulant is highly beneficial for secondary stroke prevention. Antiplatelet therapy is the best options for non-cardioembolic TIA. Nevertheless, All patients benefit from stroke risk factors modification, particularly BP control.

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Published

2019-02-14

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เจียรนัยศิลป์ ศ. TIA- Transient ischemic attack:. J Thai Stroke Soc [Internet]. 2019 Feb. 14 [cited 2024 Jul. 20];14(3):153-65. Available from: https://he01.tci-thaijo.org/index.php/jtss/article/view/172402

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