What Are the Causes of Heart Disease?

There are several reasons your dog can be affected by heart disease:

Acquired Heart Disease

  • Diseases that develop during the course of your dog’s life
  • Accounts for 95% of all heart conditions
  • There are two principal causes of acquired heart disease:
    • Atrioventricular valvular insufficiency (AVVI), which is also referred to as endocardiosis
    • Dilated cardiomyopathy (DCM)

Congenital Defects

  • Heart problems that your dog is born with
  • Will usually be diagnosed when your dog is very young (ie, still a puppy)
  • Account for a small percentage of the diagnosed heart-related problems




Heart Health Tips

Photo Maintain proper body weight for your dog.

See more tips here.

Tell Us Your Story

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Is Your Dog at Risk of CHF?

St.Bernard Learn more about the risk factors for your dog.