Common Heart Conditions in Cats: Subtle Signs That Matter

Heart disease in cats can be hard to spot

Heart disease in cats often develops quietly, with few outward signs until the condition is advanced. Because cats are experts at hiding discomfort, heart issues may only be detected during routine veterinary examinations.

At Middle Brighton Vet, we regularly assess heart health as part of wellness checks for cats across Brighton and Bayside, particularly for mature and senior cats.

Common heart conditions in cats

The most common heart condition in cats is Hypertrophic Cardiomyopathy (HCM). This condition causes thickening of the heart muscle, which can reduce the heart’s ability to fill and pump blood effectively.

Other, less common conditions include restrictive cardiomyopathy and dilated cardiomyopathy. Some cats may have underlying heart disease without showing obvious symptoms at home.

Heart murmurs in cats Heart murmurs are sometimes detected during routine veterinary examinations. In cats, a murmur may be related to heart disease, stress, or temporary changes in heart rate. While not all murmurs indicate serious disease, they are an important finding that may prompt further investigation or monitoring over time.

Signs of heart disease in cats

Signs can be subtle and may include:

· Increased breathing rate or effort, especially at rest

· Lethargy or reduced activity

· Reduced appetite

· Occasional coughing

· Sudden weakness or collapse in severe cases

Any noticeable change in behaviour or breathing warrants veterinary assessment.

Diagnosing heart disease in cats

Diagnosis may involve:

· Physical examination and listening for heart murmurs

· Chest X-rays

· Ultrasound of the heart (echocardiography)

· Blood pressure measurement and blood tests where indicated

Early diagnosis allows monitoring and management before serious complications occur.

Managing feline heart disease

While heart disease in cats cannot always be cured, many cats live comfortably with appropriate management. Treatment may include medication, lifestyle adjustments and regular follow-up visits.

Our Bayside veterinary team focuses on minimising stress for cats while providing thorough, proactive care.

When to seek urgent care

If your cat is struggling to breathe, collapses, or becomes suddenly weak, urgent veterinary attention is required.

‍