6 Dog Breeds Prone to Heart Disease

Heart disease in dogs is often overlooked because early signs can be subtle. However, it can significantly affect a dog’s quality of life—especially in breeds with a higher genetic risk.

Dog Breeds Prone to Heart Disease

• Shih Tzu – Higher risk of degenerative mitral valve disease as they age

• Poodle – Commonly affected by hereditary and age-related heart conditions

• Pomeranian – Prone to heart valve leakage and heart enlargement

• Maltese – Small breed with a high risk of mitral valve disease

• Chihuahua – Despite their size, they have a relatively high risk of heart disease, especially in senior years

• Doberman Pinscher – Frequently affected by dilated cardiomyopathy (DCM)

Warning Signs of Heart Disease in Dogs

• Chronic coughing, especially at night

• Easily tired or reduced activity

• Rapid or labored breathing

• Lethargy or decreased enthusiasm

• Abdominal or limb swelling

• Fainting or sudden weakness

Why Heart Screening Matters

When detected early, heart disease can often be managed to control symptoms and extend your dog’s quality of life. Dogs from high-risk breeds should have regular heart check-ups from around 6 years of age, or earlier if symptoms appear.

Diagnosis and Care

• Annual health checks with heart auscultation

• Chest X-rays and echocardiography to assess severity

• Treatment plans tailored to the condition, such as medications to control symptoms, diuretics, or drugs to improve heart function

📍 At Hato Animal Hospital, our veterinary team provides comprehensive heart health screening and ongoing care to support your dog’s long-term well-being.

Because early detection makes a lifelong difference