JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
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Do CHA2 DS2 VASc and HAS-BLED scores influence 'real-world' anticoagulation management in atrial fibrillation? 1556 patient registry from the reference cardiology centre.

INTRODUCTION: Although recommendations for the antithrombotic management of atrial fibrillation (AF) are based on strong evidence, the European guidelines are not fully implemented into practice.

OBJECTIVES: The objective of this study is to analyse antithrombotic treatment in AF in Poland after the publication of the European Society of Cardiology Guidelines in 2012.

PATIENTS AND METHODS: We retrospectively studied 1556 patients with AF from the Reference Cardiology University Centre in Poland in 2012-2014.

RESULTS: CHA2 DS2 VASc and HAS-BLED scores were 3.5 ± 1.7 and 2.4 ± 1.1. Anti-vitamin K agent were prescribed in 59%, with non-vitamin K antagonist oral anticoagulants in 12%, acetylsalicylic acid (ASA) alone in 18%. Older patients (p < 0.0001) and with paroxysmal AF were less likely to receive oral anticoagulation (OAC, p < 0.0001). The risk of stroke according to CHA2 DS2 VASc score was higher in patients who did not receive OAC (p < 0.0001). The use of OAC increased with increasing CHA2 DS2 VASc score but was less frequent in score ≥ 4. The risk of bleeding was higher in patients without OAC (p < 0.0001). The odds of non-vitamin K antagonist oral anticoagulants use were lower for older patients, patients with ischaemic heart disease, chronic heart failure, anaemia, HAS-BLED ≥ 3 and valvular AF. ASA was given in 39% of the patients, especially in paroxysmal AF (p < 0.0001). The odds of ASA alone were higher for older patients, with ischaemic heart disease and history of myocardial infarction (p < 0.0001). The odds of use of ASA as the only treatment were 5.5 times higher for HAS-BLED ≥ 3 (p < 0.0001).

CONCLUSIONS: Antithrombotic management in AF is well implemented in Polish conditions, but we show the lack of pattern concerning who is being treated with OAC and ASA when it comes to the risk of stroke and bleeding.

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