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What Is Valvular Heart Disease? Common Types of Valve Disorders
Valvular heart disease is a condition in which one or more of the heart valves (the mitral valve, tricuspid valve, aortic valve, or pulmonary valve) become damaged, disrupting the normal flow of blood through the heart. It is one of the most common cardiovascular diseases, particularly among older adults and individuals with a history of rheumatic fever, hypertension, or other heart conditions.
The most common types of heart valve disorders include:
- Valve regurgitation (Valve insufficiency): The valve does not close completely, allowing blood to leak backward into the previous heart chamber during contraction. As a result, the heart must work harder to compensate for the lost blood volume.
- Valve stenosis: The valve becomes thickened, stiff, or calcified, narrowing the valve opening and restricting blood flow through the heart.
- Combined valve disease: Some patients experience both valve stenosis and regurgitation affecting the same valve, making treatment more complex.
The most common types of valvular heart disease seen in clinical practice include:
- Mitral valve regurgitation
- Mitral valve stenosis
- Aortic valve stenosis
- Aortic valve regurgitation
- Tricuspid valve regurgitation
Symptoms of Valvular Heart Disease
In the early stages, many people experience few or no symptoms because the heart is still able to compensate for the impaired valve function. Most patients are diagnosed during routine health checkups or through echocardiography.
As the disease progresses, patients may experience:
- Shortness of breath during physical activity or while lying down.
- Fatigue and reduced exercise tolerance.
- Palpitations, rapid heartbeat, or irregular heart rhythm.
- Chest pain or chest discomfort.
- Dizziness or fainting.
- Swelling of the legs or ankles.
- Persistent cough or coughing up blood in severe cases of mitral valve stenosis.
If these symptoms occur frequently or become progressively worse, patients should seek evaluation at a cardiovascular specialty clinic as soon as possible.
Is Valvular Heart Disease Dangerous?
Cardiologists agree that valvular heart disease is a serious condition if left undiagnosed or untreated. In the early stages, the heart can compensate by increasing its workload to maintain adequate blood circulation, so patients may notice few or no symptoms. However, prolonged valve stenosis or regurgitation gradually weakens the heart and can lead to severe complications.
Chronic Heart Failure
The heart must pump harder over time to compensate for blood leakage or restricted blood flow. This causes the heart chambers to enlarge, weakens the heart muscle, and may eventually result in heart failure.
Atrial Fibrillation and Stroke
Patients with mitral valve disease are particularly prone to left atrial enlargement, increasing the risk of atrial fibrillation. Blood can pool within the enlarged atrium, forming blood clots that may travel to the brain and cause a stroke.
Pulmonary Hypertension
Elevated pressure in the pulmonary circulation can lead to shortness of breath, reduced exercise capacity, and eventually right-sided heart failure if left untreated.
Infective Endocarditis
Damaged heart valves provide an ideal surface for bacteria to attach and multiply, leading to infective endocarditis that can rapidly destroy valve tissue without prompt treatment.
When Is Heart Valve Surgery Necessary?
Not every patient with valvular heart disease requires surgery. The decision to repair or replace a heart valve depends on the severity of valve damage, clinical symptoms, and overall heart function.
Surgical intervention is generally recommended in the following situations:
- Severe valve stenosis or regurgitation: The valve opening is significantly narrowed or the amount of backward blood flow is substantial.
- Significant symptoms: Such as shortness of breath, chest pain, fainting, leg swelling, or reduced physical activity.
- Reduced left ventricular function (EF < 50%): Even if symptoms are minimal or absent.
- Patients undergoing other cardiac surgery: Such as coronary artery bypass grafting (CABG), where valve repair or replacement can be performed simultaneously if indicated.
Today, in addition to conventional open-heart valve replacement, selected patients may undergo valve repair or Transcatheter Aortic Valve Implantation (TAVI), a minimally invasive procedure that shortens recovery time.
To determine the optimal timing for heart valve surgery, a detailed evaluation of valve anatomy, leaflet motion, and blood flow across the valve is essential. Doppler echocardiography (Vivid) remains the cornerstone imaging modality for comprehensive assessment and surgical planning.
Xem video 
Vivid Echocardiography System
Can Valvular Heart Disease Be Prevented?
Although not every case can be prevented, the risk of developing valvular heart disease can be significantly reduced by:
- Treating streptococcal throat infections promptly to prevent rheumatic fever.
- Maintaining good control of hypertension, diabetes, and high cholesterol.
- Avoiding smoking.
- Following a heart-healthy diet and exercising regularly.
- Having regular cardiovascular checkups, especially for adults over 50 or those with a history of heart disease.
- Undergoing echocardiography if a heart murmur or suspicious cardiac symptoms are detected.
Conclusion
Valvular heart disease can be effectively managed when detected early. Regular cardiovascular checkups combined with echocardiography using advanced imaging systems play a vital role in protecting heart health, enabling physicians to accurately evaluate valve function and determine the most appropriate timing for medical treatment or surgical intervention.
Frequently Asked Questions
1.
Can valvular heart disease be cured completely?
It depends on the underlying cause and the severity of the condition. Mild cases can often be managed with medication and regular follow-up, while severe valve disease may require valve repair or valve replacement to restore heart function.
2. Does mild heart valve regurgitation require surgery?
In most cases, no. Mild valve regurgitation typically does not require surgery and can be managed with regular monitoring and follow-up examinations as recommended by a cardiologist.
3. How often should I have an echocardiogram?
The frequency of echocardiography depends on the severity of your condition and your individual risk factors. For people at higher risk or those experiencing symptoms, a cardiologist will recommend an appropriate follow-up schedule.
4. Can echocardiography detect valvular heart disease?
Yes. Doppler echocardiography is the primary imaging method for diagnosing and evaluating valvular heart disease. It allows physicians to assess valve structure, blood flow, and the severity of valve stenosis or regurgitation.
5. Who should undergo an echocardiogram to check for valvular heart disease?
People with symptoms such as shortness of breath, palpitations, chest pain, fatigue during exercise, a heart murmur, or risk factors including age over 50, rheumatic fever, hypertension, or a family history of heart disease should consider an echocardiogram as recommended by their physician.
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