Heart disease is amongst the top ten most common causes of feline death. Yet despite this, diagnosing and treating feline cardiomyopathy, is very challenging for veterinary surgeons and veterinary nurses. Many cats present with congestive heart failure, or aortic thromboembolism or even sudden cardiac death as the first presenting sign. Guidelines are currently being published to help veterinary surgeons classify, diagnose and manage feline heart disease. This new understanding and consensus of what can be a difficult and challenging subject will be discussed, so that the veterinary nurse can apply the latest evidence-based nursing to their practice. The session will cover the prevalence and aetiology of feline cardiomyopathies, new terminology and classification systems specifically designed for cats, relevance and efficacy of diagnostic testing, treatment and nursing care. The session will be fully interactive and suitable for all levels of knowledge.