• Chest · Feb 2019

    Effectiveness and Safety of Non-Vitamin K Antagonist Oral Anticoagulants in Atrial Fibrillation Patients with Hypertrophic Cardiomyopathy: A Nationwide Cohort Study.

    • Hyunjean Jung, Pil-Sung Yang, Eunsun Jang, Hee Tae Yu, Tae-Hoon Kim, Jae-Sun Uhm, Jong-Youn Kim, Hui-Nam Pak, Moon-Hyoung Lee, Boyoung Joung, and Lip Gregory Y H GYH Division of Cardiology, Department of Internal Medicine, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, South Korea;.
    • Division of Cardiology, Department of Internal Medicine, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, South Korea.
    • Chest. 2019 Feb 1; 155 (2): 354-363.

    BackgroundChronic anticoagulation is recommended in patients with hypertrophic cardiomyopathy (HCM) and atrial fibrillation (AF). Non-vitamin K antagonist oral anticoagulants (NOACs) are an alternative to warfarin, but there are limited data to support their use in patients with HCM and AF. We sought to compare thromboembolic events, bleeding, and mortality between NOAC and warfarin in patients with HCM and AF.MethodsFrom the Korean National Health Insurance Service database during the period from January 1, 2011, to December 31, 2016, we identified a warfarin-treated group of patients with HCM and AF (n = 955) who were compared with a 1:2 propensity-matched NOAC treated group (n = 1,504).ResultsAfter a median follow-up of 16 months, the incidence rates of ischemic stroke and major bleeding were similar between NOAC- and warfarin-treated patients with HCM and AF. NOAC-treated patients had lower incidence rates for all-cause mortality (5.11 and 10.13 events per 100 person-years for NOAC and warfarin groups) and the composite of fatal cardiovascular events (0.77 and 1.80 events per 100 person-years). Compared with warfarin, use of NOACs was associated with a significantly lower risk of all cause-mortality (hazard ratio, 0.43; 95% CI, 0.32-0.57) and composite fatal cardiovascular events (hazard ratio, 0.39; 95% CI, 0.18-0.82).ConclusionsCompared with warfarin, patients with HCM and AF on NOACs had similar stroke and major bleeding risks, but lower all-cause mortality and composite fatal cardiovascular events. Our data suggest that patients with HCM and AF can be safely and effectively treated with NOACs.Copyright © 2018 American College of Chest Physicians. Published by Elsevier Inc. All rights reserved.

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