Written by Dimitrios Vrachatis, Specialist Cardiologist, PhD, National and Kapodistrian University of Athens.
Tricuspid Valve Disease and Its Management
The tricuspid valve helps maintain correct blood flow between the right atrium and right ventricle. Disease affecting it can cause significant cardiovascular complications if not accurately diagnosed and effectively treated.
There are two main categories: tricuspid regurgitation (TR) and tricuspid stenosis. Regurgitation, the more common form, occurs when the valve does not close properly, allowing blood to flow back into the right atrium during ventricular contraction. Stenosis is a narrowing of the valve that obstructs flow from the atrium to the ventricle.
Causes and Risk Factors
Causes include both congenital and acquired factors. Congenital conditions, such as Ebstein’s anomaly, are present at birth and affect the valve’s structure. Acquired causes include rheumatic heart disease, endocarditis, an infection of the heart valves, and certain medicines or illicit drugs that can damage them.
Risk factors include age, previous infective endocarditis, other cardiac conditions such as left-sided valve disease, and conditions causing right heart enlargement and increased pressure, such as pulmonary hypertension.
Symptoms and Clinical Features
Symptoms often resemble those of heart failure, caused by backward flow or obstruction due to valve dysfunction. They include fatigue, swelling of the legs and abdomen, pulsations in the neck veins and, in severe cases, liver congestion and failure. Symptoms may remain subtle or unnoticed until the disease has progressed considerably.
How is tricuspid valve disease diagnosed?
Diagnosis combines clinical assessment, imaging and sometimes invasive investigations. Echocardiography, cardiac MRI, electrocardiography and cardiac catheterisation can all provide valuable information.
How is tricuspid valve disease treated?
Treatment depends on severity, symptoms and the underlying cause.
- When surgery is not immediately necessary or is contraindicated, treatment focuses on symptoms and underlying causes. This may include diuretics to reduce swelling, heart failure medication and treatment of conditions such as pulmonary hypertension.
- Surgery is considered for symptomatic patients or those with severe valve dysfunction. Options include repair or replacement. Repair is preferred because of better outcomes and a lower complication risk. Replacement is considered when repair is not feasible.
- Technological advances have introduced catheter-based repair, offering a less invasive option for high-risk patients. Although still at an early stage, these procedures have shown promising results in reducing regurgitation and improving symptoms.
Studies show that surgical correction, particularly before advanced heart failure symptoms develop, improves survival and quality of life. Progress in minimally invasive techniques may broaden treatment options for patients who are not candidates for conventional surgery.
Prevention
Given the complexity of tricuspid valve disease and its links with broader cardiovascular and systemic conditions, prevention is important. This includes managing high blood pressure, smoking and obesity, which contribute to valve disease. Early identification and treatment of these factors can help prevent its development or progression.
Both regurgitation and stenosis present challenges because of their varied causes and clinical features. Advances in imaging, surgery and minimally invasive procedures have substantially improved management and prognosis. A patient-centred approach, with early diagnosis and individualised treatment, is essential to optimise outcomes.