Hypertrophic cardiomyopathy is the most common heart disease in cats. Early detection through screening allows interventions that may prevent life-threatening complications.
HCM is often a silent disease until a life-threatening event occurs — acute heart failure or aortic thromboembolism both represent severe welfare emergencies. Aortic thromboembolism causes sudden paralysis and extreme pain in the hind limbs. Screening echocardiography in at-risk breeds allows identification of pre-clinical disease and antiplatelet treatment before catastrophic events. Owners managing cats with HCM require clear guidance on emergency signs and when to seek immediate veterinary attention.