Myxomatous Valvular Degeneration

Body function:

Heart & Blood

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Myxomatous valvular degeneration, also known as degenerative valve disease, is the most common heart disease in dogs. It is a genetic condition, though its precise genetic causes are poorly understood. The condition causes the thickening and elongation of the heart valves, affecting their ability to close properly.

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List of affected breeds:

Genetic research has linked this gene and condition in the following breeds:

Cavalier King Charles Spaniel

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What does this mean for a dog with this trait?

There is no cure for myxomatous valvular generation. Medications can slow down heat enlargement or help with symptoms of congestive heart failure.

Symptoms

Symptoms of myxomatous valvular degeneration typically begin with a heart murmur. As the condition progresses, dogs may experience signs of congestive heart failure, like difficulty breathing, coughing, weakness, and exercise intolerance. Once congestive heart failure occurs, life prognosis is 12 to 18 months. In some cases, the disease can lead to sudden death.

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