Abstract W P185: Clinical Predictors of Stroke, TIA and Mimic among Patients with Transient Neurological Dysfunction Admitted to an Emergency Department Observation Unit
2015
Background: In patients with resolved symptoms, transient ischemic attack (TIA) is distinguished from ischemic stroke by neuroimaging evidence of acute infarction. DW-MRI has been shown to be more sensitive at detecting infarction than CT, but is not uniformly available in the acute setting. Hypothesis: We sought to identify predictors of stroke diagnosis among a cohort of clinically suspected TIA patients undergoing an accelerated diagnostic protocol in an emergency department observation unit (EDOU). Methods: We prospectively studied 189 patients treated in the EDOU of a single tertiary care academic medical center. Patients underwent DW-MRI of the brain (unless contraindicated), and bedside neurologist evaluation. A CT scan of the brain was considered optional prior to EDOU admission. We compared the odds of extremity weakness, sensory loss, facial droop, visual disturbance, slurred speech, aphasia, dizziness, and headache between patients with final diagnosis of stroke, TIA and mimic. This study was a...
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