As dogs get older, the risk of heart disease increases. When dogs develop heart disease, their temperament may change and they may leave their owners at any time if they are feeling unwell. What causes heart disease in dogs? What can be done to monitor their heart condition? 

What causes heart disease in dogs?

The main causes of heart disease in dogs are congenital defects and age-related degeneration of the heart valves, making older dogs more prone to heart conditions. Thanks to medical advancements, the average lifespan of dogs is increasing. Yet, as dogs age, heart disease, kidney disease and cancers are the main causes of death in dogs. Common heart diseases in dogs include congenital valve dysplasia, heart valve disease, dilated cardiomyopathy, heartworm infection, etc.

What breeds are prone to heart disease?

Small breeds are more susceptible to heart disease than large breeds, including Chihuahuas, Miniature Poodles, Maltese Dogs, Miniature Schnauzers and Dachshunds, etc. They are more prone to valvular heart diseases. Moreover, male dogs have increased odds of having heart conditions than female dogs. Statistics show that about 30% of dogs aged 13 or older will develop degenerative valve disease. 

As for larger breeds, Golden Retrievers, Dobermans and Labradors are also at risk of developing dilated cardiomyopathy, but it is less common.

Symptoms of Heart Disease in Dogs

If you find that your dog is still panting and breathing hard when you return from a walk, is not as strong as it used to be, does not want to walk after a short dash, requires more downtime, is less and less outgoing, and does not bother to move at all, there is a chance that the dog may have heart disease.

As cardiovascular disease reduces your dog's energy, you may also find that your dog may have a bad appetite and get lighter. Because of the deterioration of heart function, digestion and nutrient absorption functions also decline. In severe cases, the dog may collapse and die suddenly.

“H．E．A．R．T” 5 Tips to Keep Track of Your Dog’s Heart Condition

If you notice that your dog seems to be suffering from a heart condition, here are 5 tips to keep track of your dog's heart condition and keep it safe.

H (Hear) – Listen for abnormal breathing or coughing, and record observations of the dog’s breathing and heartbeat.

E (Exam) - Take your dog for regular health check-ups.

A (Ask) - Ask your vet for professional advice.

R (Relax) - Keep your dog at ease after being diagnosed with heart disease.

T (Treatment) - Depending on the stage of the heart disease, the doctor will administer appropriate medication to prolong survival time.

Do Not Neglect Your Pet’s Health Check-ups

People need medical check-ups as they get older, and so do pets. It is recommended to receive check-ups once a year to keep track of your pet's health and to detect and treat heart disease as early as possible, so that its progression can be effectively controlled and slowed down. If your dog has been diagnosed with heart disease, it should be examined every three months to ensure its well-being and physical condition.