Contemporary Trends in Oral Anticoagulant Prescription in Atrial Fibrillation Patients at Low to Moderate Risk of Stroke After Guideline-Recommended Change in Use of the CHADS2 to the CHA2DS2-VASc Score for Thromboembolic Risk Assessment Analysis From the National Cardiovascular Data Registry's Outpatient Practice Innovation and Clinical Excellence Atrial Fibrillation Registry
Contemporary Trends in Oral Anticoagulant Prescription in Atrial Fibrillation Patients at Low to Moderate Risk of Stroke After Guideline-Recommended Change in Use of the CHADS2 to the CHA2DS2-VASc Score for Thromboembolic Risk Assessment Analysis From the National Cardiovascular Data Registry's Outpatient Practice Innovation and Clinical Excellence Atrial Fibrillation Registry
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DOI:
10.1161/circoutcomes.116.003476
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发表时间:
2017-05-01
影响因子:
6.9
通讯作者:
Hsu, Jonathan C.
中科院分区:
文献类型:
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作者:
Katz, David F.;Maddox, Thomas M.;Hsu, Jonathan C.
Background-Use of the CHA(2)DS(2)-VASc score instead of the CHADS(2) score for thromboembolic risk stratification and initiation of oral anticoagulation (OAC) was recommended in the 2014 American Heart Association/American College of Cardiology/Heart Rhythm Society atrial fibrillation (AF) guidelines. We sought to define the proportion of patients with AF qualifying for and receiving OAC in contemporary practice by applying the CHA(2)DS(2)-VASc score to patients with a low CHADS(2) score.Methods and Results-Among patients with AF enrolled in the American College of Cardiology National Cardiovascular Data Registry's outpatient Practice Innovation and Clinical Excellence registry (2008-2014) CHADS(2) score of 0 or 1, we calculated the impact of adoption of the CHA(2)DS(2)-VASc score on the proportion of patients with an indication for OAC. We examined trends in prescription of OAC overall, direct OAC (dabigatran/rivaroxaban/apixaban), and multivariable associations between clinical characteristics and OAC use. Of 346 068 patients with AF aged 65 +/- 12 years, 61% were men and 65% were white. In total, 24% of those with CHADS(2)=0 and 81% of those with a CHADS(2)=1 were reclassified as having a definite indication for OAC (CHA(2)DS(2)-VASc score >= 2). OAC use increased from 37% to 48% during the study period, and direct OAC use increased from 5% to 30%. Increasing CHA(2)DS(2)-VASc score (odds ratio, 2.07; 95% confidence interval, 1.97-2.19 for score of 4 versus 0) and rhythm control strategy (odds ratio, 1.34; 95% confidence interval, 1.30-1.39) were associated with increased OAC use.Conclusions-Adoption of the CHA(2)DS(2)-VASc score reclassifies 64.5% of patients with AF with low CHADS(2) scores into a class I indication for OAC prescription. Overall OAC prescription increased between 2011 and 2014.