Echocardiographic predictors of first onset of atrial fibrillation in dogs with myxomatous mitral valve disease

Baron Toaldo, Marco; Mazzoldi, Chiara; Romito, Giovanni; Poser, Helen; Contiero, Barbara; Cipone, Mario; Guglielmini, Carlo

doi:10.1111/jvim.15860

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Baron Toaldo, M., Mazzoldi, C., Romito, G., Poser, H., Contiero, B., Cipone, M., & Guglielmini, C. (2020). Echocardiographic predictors of first onset of atrial fibrillation in dogs with myxomatous mitral valve disease. Journal of Veterinary Internal Medicine, 34(5), 1787–1793. https://doi.org/10.1111/jvim.15860

Abstract

Background Atrial fibrillation (AF) occurs in dogs with myxomatous mitral valve disease (MMVD) as a consequence of left atrial (LA) dilatation, and it affects survival and quality of life. Objectives To evaluate the usefulness of echocardiography in predicting the first occurrence of AF in dogs with MMVD. Animals Forty‐four client‐owned dogs with MMVD, 22 dogs that developed AF, and 22 dogs that maintained sinus rhythm. Methods Retrospective observational study. Medical databases were reviewed for dogs that developed AF during the yea