Myxomatous degeneration

Myxomatous degeneration is a pathological condition where connective tissue, particularly of the heart valves, undergoes fibrous change and acquires a tumorous appearance. This condition is most commonly associated with the mitral valve, but can affect any of the heart valves.

Etiology

The exact cause of myxomatous degeneration is unknown, but it is believed to be related to genetic factors, as it is often seen in certain breeds of dogs, such as the Cavalier King Charles Spaniel. Other factors that may contribute to the development of this condition include age, sex, and certain underlying medical conditions.

Pathophysiology

In myxomatous degeneration, the connective tissue of the heart valves becomes weakened and stretched, leading to the formation of small, tumor-like nodules. These nodules can interfere with the normal functioning of the heart valves, leading to conditions such as mitral valve prolapse and mitral regurgitation.

Clinical Presentation

Patients with myxomatous degeneration may present with a variety of symptoms, depending on the severity of the condition and the specific heart valves affected. Common symptoms include shortness of breath, fatigue, palpitations, and chest pain. In severe cases, myxomatous degeneration can lead to heart failure.

Diagnosis

Diagnosis of myxomatous degeneration is typically made through a combination of physical examination, medical history, and imaging studies. Echocardiography is the most commonly used imaging technique for diagnosing this condition.

Treatment

Treatment for myxomatous degeneration depends on the severity of the condition and the specific heart valves affected. In mild cases, treatment may involve regular monitoring and lifestyle modifications. In more severe cases, surgical intervention may be necessary to repair or replace the affected heart valves.

See Also

• Mitral valve prolapse
• Mitral regurgitation
• Echocardiography

Myxomatous degeneration Resources
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