A heart murmur is an abnormal heart sound caused by atypical pumping of the heart. Doctors and veterinarians can identify heart murmurs with a stethoscope. Treatments and prognosis of murmurs in dogs depend on the underlying cause, as well as the dog's health, age, and breed. Caught early, heart murmurs often indicate a defect or disease that can be treated or managed. When your dog is diagnosed with a heart murmur, asking your veterinarian the right questions will ensure you know what to expect and how best to care for your dog.
The contraction and relaxation of the heart muscle delivers blood throughout the body by way of the blood vessels. A heart murmur occurs when the normal pumping of the heart is disturbed by an abnormal flow of blood. This disturbance may stem from a defect, disease, or infection of the valves or vessels of your dog's circulatory system, or the blood itself.
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