Initial evaluation and management of transient ischemic attack and minor stroke
نویسنده
چکیده
TIA was originally defined as a sudden onset of a focal neurologic symptom and/or sign lasting less than 24 hours and caused by reversible cerebral ischemia. However, this classic definition of TIA was inadequate for several reasons. Most notably, there is risk of permanent tissue injury (ie, infarction) even when focal transient neurologic symptoms last less than one hour. Furthermore, about one-half of patients with classically defined TIA syndromes (<24 hours in duration) have corresponding appropriate ischemic lesions by brain MRI on diffusion-weighted or perfusion-weighted imaging. (See "Definition of transient ischemic attack", section on 'Relationship of symptom duration and infarction'.)
منابع مشابه
Predicting recurrent stroke after minor stroke and transient ischemic attack.
The risk of a subsequent stroke following an acute transient ischemic attack or minor stroke is high, with 90-day risk at approximately 10%. Identification of those patients at the highest risk for recurrent stroke following a transient ischemic attack or minor stroke may allow risk-specific management strategies to be implemented, such as hospital admission with expedited work-up for those at ...
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