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Comorbidities and Antithrombotic Treatment Pattern in Patients With Atrial Fibrillationopen access

Authors
Bang, Oh YoungKim, SiinOn, Young KeunLee, Myung-YongJang, Sung-WonHan, SeongwookRyu, JaeyunKang, SeongsikSuh, Hae SunKim, Young-Hoon
Issue Date
4-3월-2022
Publisher
FRONTIERS MEDIA SA
Keywords
stroke; systemic embolism; NOAC; warfarin; atrial fibrillation
Citation
FRONTIERS IN NEUROLOGY, v.13
Indexed
SCIE
SCOPUS
Journal Title
FRONTIERS IN NEUROLOGY
Volume
13
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/141911
DOI
10.3389/fneur.2022.761603
ISSN
1664-2295
Abstract
ObjectiveNon-vitamin K antagonist oral anticoagulants (NOACs) are proven alternatives to warfarin for preventing stroke in patients with non-valvular atrial fibrillation. We aimed to examine the treatment patterns and patient factors associated with the use of antiplatelet agents, warfarin, and NOACs in clinical practice. MethodsWe conducted a retrospective cohort study using the Korean Health Insurance Review & Assessment Service database. Patients receiving antithrombotics were identified before and after the introduction of NOACs (from August 1, 2013 to December 30, 2014 and July 1, 2015 to November 30, 2016, respectively). Patients were included if they were aged >= 18 years, had an atrial fibrillation diagnosis, and had a CHA(2)DS(2)-VASc score >= 2. Treatment pattern was assessed by classifying patients into NOAC, warfarin, or antiplatelet users based on the first date of antithrombotic prescription. Clinical factors associated with the type of antithrombotics chosen were examined using logistic regression analyses. ResultsWe identified 129,465 and 196,243 patients before and after the introduction of NOACs, respectively. The proportion of antiplatelet users was 60.7 and 53.0% before and after the introduction of NOACs, respectively. The proportion of warfarin users was higher in patients with low HAS-BLED score, high CHA(2)DS(2)-VASc score, or stroke before the NOAC era. A similar trend was observed for NOAC and warfarin users after the introduction of NOAC. Compared with antiplatelets, warfarin and NOAC uses were significantly associated with CHA(2)DS(2)-VASc score and stroke, whereas presence of myocardial infarction (MI) and peripheral arterial disease were significantly associated with antiplatelets prescription. For comparisons between NOAC and warfarin, HAS-BLED and CHA(2)DS(2)-VASc scores showed significant associations with NOAC use, whereas comorbidities including MI were significantly associated with warfarin use. ConclusionsThe treatment pattern of antithrombotics did not change with the introduction of NOACs. However, comorbidities served as an important factor in choosing treatment regardless of NOAC entry.
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