Ramona Matusevičiūtė1, Ieva Petkutė1, Jolanta Justina Vaškelytė2
1Lithuanian University of Health Sciences, Faculty of Medicine, Kaunas, Lithuania
2Lithuanian University of Health Sciences Kaunas Clinics, Department of Cardiology, Kaunas, Lithuania
Background and aim. Secondary atrial functional mitral regurgitation without left ventricular dysfunction is increasingly being diagnosed in patients with atrial fibrillation (AF). As the population ages and the incidence of AF and heart failure with preserved ejection fraction increases, the diagnosis of atrial functional mitral regurgitation is expected to become a challenging health problem. Therefore, the aim of this study is to evaluate the incidence of atrial functional mitral regurgitation in patients with paroxysmal and persistent atrial fibrillation using 2D echocardiography.
Materials and methods. This study at LSMUL KK analysed 123 patients with AF who underwent 2D echocardiography between January and July, 2021. Patients with primary or secondary mitral regurgitation were excluded and 44 eligible patients were selected. The incidence of atrial functional mitral regurgitation was calculated based on their 2D echocardiography results. Statistical analysis was performed using the IBM SPSS program, the results were considered statistically significant when p < 0.05.
Results. Among 44 analysed patients persistent AF was found in 52.3 %, paroxysmal AF in 47.7 % of patients. 15.9 % of patients did not have mitral regurgitation, 40.9 % had mild, 31.8 % had moderate and 11.4 % had moderate to severe mitral regurgitation. There were no patients with severe mitral regurgitation.
Conclusion. The incidence of atrial functional mitral regurgitation in patients with paroxysmal or persistent atrial fibrillation was 84.1 %. Almost half of those patients had mild mitral regurgitation, while the remaining half had moderate or moderate to severe mitral regurgitation.
Keywords: atrial fibrillation, mitral regurgitation, atrial functional mitral regurgitation, heart failure with preserved ejection fraction.