Unraveling the pathophysiology of feline hypertrophic cardiomyopathy - an interdisciplinary approch

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Feline hypertrophic cardiomyopathy (HCM) is a common, spontaneous disease of adult, predominantly male cats. A genetic cause is reported, but cats can have a mutation and not develop the disease and cats without mutation can present with disease characteristics. Also, other factors that influence the disease are so far not known. HCM is characterized by thickening of the left cardiac chamber wall, with structural and functional changes. This results in increased stiffness and dysfunction of the heart and can cause arrhythmia, thrombus formation and heart failure. However, the clinical signs and progression of the disease are highly variable, and little agreement exists about the clinical and pathological disease parameter.