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We know that cardiac disease can directly influence the brain: the burden of atrial fibrillation (AF), one of the most important risk factors for ischemic stroke, continues to grow with the increase in the age of the population and the frequency of mechanical triggers.1 Patients with AF and other risk factors, in particular ischemic stroke (measured using the CHA2DS2 VASc score), should receive oral anticoagulation to prevent further ischemic strokes or systemic embolism. A recent US study2 showed a high prevalence of inadequate use or underuse of therapeutic anticoagulation in patients with AF prior to their stroke. Determining stroke etiology is crucial for informing patients, their caregivers, and families about recurrence risk and the best choices for adequate secondary prevention. With rigorous workup, up to a quarter of patients with ischemic stroke have AF newly detected.3
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- © 2018 American Academy of Neurology
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