Abstract
An audit was conducted to determine if the benefits of dabigatran treatment, as demonstrated in the RE-LY (Randomized Evaluation of Long-Term Anticoagulation Therapy) trial, are applicable to patients with nonvalvular atrial fibrillation managed by a pharmacist-run anticoagulation clinic (PAC). The records of warfarin-treated patients managed by a PAC program over a three-year period were screened to identify patients with diagnosed nonvalvular atrial fibrillation and a goal International Normalized Ratio (INR) of 2-3; the case selection criteria were similar to those used in the RE-LY trial. Abstracted data included dates and results of INR monitoring and information needed to calculate CHADS2 (Congestive Heart Failure, Hypertension, Age, Diabetes, and Stroke [doubled]) scores. Warfarin time in the therapeutic range (TTR) was the primary endpoint. A pairwise comparison of TTR distributions in subsets of patients grouped by CHADS2 score was performed to test the hypothesis that any two groups had identical distributions. Data on 314 PAC patients, including 9772 INR values, were analyzed. The mean±S.D. TTR was 62.4%±24.5% (median, 66.7%), which was similar to the mean TTR reported in the RE-LY trial (p=0.092). The distribution o...Continue Reading
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