Paige, C. F., J. A. Abbott, et al. (2009). “Prevalence of cardiomyopathy in apparently healthy cats.” J Am Vet Med Assoc 234(11): 1398-1403.
The purpose of the study was to determine the prevalence of cardiomyopathy and the relationship between cardiomyopathy and heart murmurs in apparently healthy cats. The study included 103 privately owned and apparently healthy cats that were physically and echocardiographically examined independently by two investigators. Left ventricular wall thickness was determined using 2-dimensional echocardiography in short-axis and long-axis views. Sixteen of the cats examined had heart murmurs detected; of these, 5 had cardiomyopathy. Cardiomyopathy was also identified in 16 cats; 15 had hypertrophic cardiomyopathy (HCM), and one had arrhythmogenic right ventricular cardiomyopathy. The sensitivity and specificity of auscultatory detection of a heart murmur for diagnosis of cardiomyopathy were 31% and 87%, respectively. The findings of this study indicated that cardiomyopathy is common in healthy cats. In addition, detection of a heart murmur is not a reliable indicator of cardiomyopathy in apparently healthy cats. [VT] >> PubMed Abstract
Related articles: Rush, J., L. Freeman, et al. (2002). “Population and survival characteristics of cats with hypertrophic cardiomyopathy: 260 cases (1990-1999).” J Amer Vet Med Assoc 220(2): 202-207. >> PubMed Abstract
Zimmering, T. M., F. Meneses, et al. (2009). “Measurement of N-terminal proatrial natriuretic peptide in plasma of cats with and without cardiomyopathy.” American Journal of Veterinary Research 70(2): 216-222. >> PubMed Abstract
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