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Demographic, Clinical, and Angiographic Characteristics of Atrial Fibrillation Patients Suffering from de Novo Acute Myocardial Infarction: A Subgroup Analysis of the MINOCA-TR Study Population

Background: Atrial fibrillation (AF) prevalence in patients with acute myocardial infarction (MI) ranges from 3% to 25%. However demographic, clinical, and angiographic characteristics of AF patients who admitted with de novo MI are unclear. The aim of this study was to investigate the prevalence of patients presenting with de novo MI with AF. Methods: The study was performed as a sub-study of the MINOCA-TR (Myocardial Infarction with Non-obstructive Coronary Arteries in Turkish Population) Registry, a multicenter, cross-sectional, observational, all-comer registry. MI patients without a known history of stable coronary artery disease and/or prior coronary revascularization were enrolled in the study. Patients were divided into AF and Non-AF groups according to presenting cardiac rhythm. Results: A total of 1793 patients were screened and 1626 were included in the study. The mean age was 61.5 (12.5) years. 70.7% of patients were men. The prevalence of AF was 3.1% (51 patients). AF patients were older [73.4 (9.4) vs. 61.0 (12.4) years, p<0.001] than non-AF patients. The proportion of women to men in the AF group was also higher than in the non-AF group (43.1% vs. 28.7%, p=0.027). Only 1 out of every 5 AF patients (10 patients, 19.6%) was using oral anticoagulants (OAC). Conclusions: AF prevalence in patients presenting with de novo MI was lower than previous studies that issued on AF prevalence in MI cohorts. The majority of AF patients did not have any knowledge of their arrhythmia and were not undergoing OAC therapy at admission, emphasizing the vital role of successful diagnostic strategies, patient education, and implementations for guideline adaptation.

Credits: Ali Coner, Cenk Ekmekci, Gokhan Aydin, Yasemin Kilavuz Dogan, Ozlem Arican Ozluk, Salih Kilic, Yunus Celik, Ismail Ungan, Mustafa Begenc Tascanov, Ramazan Duz, Veli Polat, Hakan Ozkan, Mehmet Ozyasar, Kamil Tuluce, Abdullah Icli, Devrim Kurt, Nurullah Cetin, Murat Gul, Sinan Inci, Mehdi Zoghi, Oktay Ergene, Ugur Onsel Turk

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