Abstract
In 97 cats clinically diagnosed as hypertrophic cardiomyopathy (HCM) at Angell Memorial Animal Hospital in Boston, the occurrence of arrhythmia, congestive heart failure (CHF) and systemic arterial embolism (SAE) as well as heart rate and population characteristics wereevaluated, referring to electrocardiogram (ECG) and M-mode echocardiogram. The mean age ofcases with HCM was 5.3 years, and neutered males were significantly predisposed. The left ventricular free wall (LVFW) was significantly thicker in cats with SAE and in those showing left ventricular hypertrophy (LVH) pattern on ECG. It suggested that the LVFW thicknessmight be a closely related with SAE.