Analysis estimates high prevalence of undiagnosed atrial fibrillation in the U.S

Healio (3/27, Schaffer) reports, “An analysis of five U.S. medical claims databases” published online in the journal Clinical Cardiology “suggests as many as 23% of 5.6 million to 6.6 million presumptive atrial fibrillation cases are undiagnosed, with many undiagnosed patients likely eligible for oral anticoagulant treatment.” In coming to this conclusion, the study team “analyzed patient information from five U.S. medical claims data sets from 2012 to 2017,” then “estimated undiagnosed AF based on the observed incidence of ischemic stroke, systemic embolism and AF incidence after a stroke or systemic embolism.”

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