Hypertrophic cardiomyopathy (HCM) is a very common heart disease of cats causing their heart muscle to become thicker than normal. A substantial percentage of cats with HCM die suddenly, but the cause of sudden death has not been investigated. Recently developed, small monitors that can record heart rate and the heart rhythm continuously for 24 hours have become available and can be worn by the cat at home during normal activity. This study is designed to assess cardiac rhythms in cats with HCM in order to define the presence and severity of cardiac arrhythmias plus assessing those arrhythmias vary on different days while better understanding the effects of structural heart changes on cardiac rhythm. (Ricky Fund Study)
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