What Causes Disability After Transient Ischemic Attack and Minor Stroke?
- 1 November 2012
- journal article
- research article
- Published by Ovid Technologies (Wolters Kluwer Health) in Stroke
- Vol. 43 (11), 3018-3022
- https://doi.org/10.1161/strokeaha.112.665141
Abstract
Background and Purpose—Minor stroke and transient ischemic attack portend a significant risk of disability. Three possible mechanisms for this include disability not captured by the National Institutes of Health Stroke Scale, symptom progression, or recurrent stroke. We sought to assess the relative impact of these mechanisms on disability in a population of patients with transient ischemic attack and minor stroke. Methods—Five hundred ten consecutive minor stroke (National Institutes of Health Stroke Scale <4) or patients with transient ischemic attack who were previously not disabled and had a CT/CT angiography completed within 24 hours of symptom onset were prospectively enrolled. Disability was assessed at 90 days using the modified Rankin Scale. Predictors of disability (modified Rankin Scale ≥2) and the relative impact of the initial event versus recurrent events were assessed. Results—Seventy-four of 499 (15%; 95% CI, 12%–18%) patients had a disabled outcome. Baseline factors predicting disability ...Keywords
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