Hypertrophic cardiomyopathy (HCM) is the most common heart disease in cats, and managing welfare across the disease trajectory requires proactive monitoring, careful medication management, and quality of life assessment.
Cats with HCM often live comfortable lives for extended periods when well managed, but welfare can deteriorate rapidly with acute decompensation. The sudden onset of respiratory distress or paralysis from ATE causes significant suffering. Owners need support recognising deterioration signs, and clear emergency protocols improve outcomes. End-of-life planning should begin early, as HCM can progress unpredictably. Stress reduction during veterinary visits is particularly important, as anxiety can trigger acute decompensation.