ABSTRACT

Myocardial diseases (cardiomyopathies) cause a spectrum of pathophysiologic and structural abnormalities in cats1-3. As a group, they are the most common cause of heart disease in cats2, 4. Myocardial disease occurs secondary to an identifiable cause in some cats, but the disease is idiopathic in many. General categories of myocardial disease are hypertrophic, restrictive, dilated, and arrhythmogenic right ventricular cardiomyopathy (ARVC)1, 3. Features of more than one category can coexist in an individual, and some cats are considered to have ‘indeterminate’ or unclassified myocardial disease. Systemic thromboembolism (TE) remains a troubling complication in cats with myocardial disease.