Heart diseases are almost as common in dogs as in human subject. The clinical signs of heart disease depend on the type of disease and severity, but initially it is asymptomatic in most cases. Auscultation, electrocardiography, echocardiography and some biochemical tests are most useful diagnostic procedures employed in recognizing the cardiac diseases in dogs. Presently access to echocardiographic facility in veterinary practice has brought about a revolution in the early and precise diagnosis and management of cardiac diseases in dogs. Some congenital cardiac defects can be repaired or corrected with surgery, while other conditions can be managed with medical therapy using one or a combination of drugs. Quality of life and life expectancy can be improved with early diagnosis and treatment in congestive heart failure cases. Even though most forms cannot be prevented, heart disease caused by heartworms can easily be avoided with preventative medical therapy. With the advent of modern diagnostic modalities and increased awareness among pet owners, cardiac diseases in dogs are being attended in clinical practice.
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