Types of Heart Disease

• Three types of canine heart disease exist. Regular visits to your veterinarian ensure early detection.
  
  

Subvalvular Aortic Stenosis

• Although rare, a hereditary condition called subvalvular aortic stenosis occurs in Stafford bull terriers. The condition is caused by an obstruction in the heart, causing a murmur, and has been detected as early as four weeks old.
  
  

Endocardiosis

• When heart valves cannot close properly, it causes an abnormal blood flow called chronic valvular disease or endocardiosis. The condition can occur in Stafford bulls 6 years or older and is managed well with diet and exercise.
  
  

Dilated Cardiomyopathy

• As the muscles of the heart weaken, a condition called dilated cardiomyopathy occurs. The flow of blood slows, causing fluid to leak from the capillaries into the dog's lungs.
  
  

Symptoms and Treatment

• Symptoms of heart disease include suppressed appetite, weight loss, irregular or rapid breathing, coughing and lethargy.
  
  

Prognosis

• Valvular disease and dilated cardiomyopathy can cause heart failure--when one side of the heart does more work to compensate for the inefficiency of the other side, the muscles can fail and the heart is unable to pump blood properly.