Heart valve disease, its symptoms and treatment options
Valves can narrow or leak, often over many years. How valve disease is detected, monitored and treated, including minimally invasive options.
In short
The four heart valves keep blood moving in one direction. A valve can become narrowed, so that blood is obstructed, or it can fail to close properly, so that blood leaks backwards. Both develop slowly in most cases, and symptoms such as breathlessness, reduced exercise capacity, chest discomfort or ankle swelling may appear only late. An echocardiogram is the key test. Many people are monitored for years without needing treatment; where intervention becomes appropriate, options include surgery and catheter-based procedures such as TAVI and TEER.
Call 999 if you develop severe breathlessness at rest, chest pain, or if you faint. Fainting, chest pain on exertion or breathlessness that has clearly worsened are important developments in known valve disease and need prompt assessment.
Key facts
- Valve disease is often silent for years and may first be noticed as a murmur during a routine examination.
- An echocardiogram establishes which valve is affected, the mechanism and the severity.
- Severity on a scan and the need for treatment are not the same thing; symptoms and heart function both matter.
- Regular surveillance allows intervention to be timed before irreversible damage to the heart muscle occurs.
- Catheter-based treatments have made intervention possible for many patients for whom open surgery carries high risk.
Narrowing and leaking
Each of the four valves opens to let blood through and closes to stop it returning. Two things can go wrong. Stenosis is narrowing: the valve does not open fully, and the heart must work harder to push blood past it. Regurgitation is leaking: the valve does not close fully, and blood flows backwards, so that some of each beat is wasted.
The valves most often involved in adults are the aortic valve, where narrowing becomes more common with age, and the mitral valve, where leaking is the more frequent problem. Tricuspid regurgitation is increasingly recognised, often alongside disease elsewhere in the heart.
Why symptoms appear late
The heart compensates well. Muscle thickens to overcome a narrowed valve; chambers enlarge to accommodate a leaking one. These adaptations maintain normal function for years, which is why significant valve disease can exist with no symptoms at all.
When symptoms do appear, they are typically breathlessness on exertion, reduced exercise capacity, fatigue, chest discomfort, palpitations, ankle swelling, or light-headedness. Fainting or chest pain on exertion in someone with known aortic stenosis is a particularly important development.
Because symptoms come on gradually, people often adjust their activity without noticing. A useful question in clinic is not whether you are breathless, but whether you are doing as much as you were two years ago.
How it is assessed
Valve disease is frequently first suspected from a murmur heard during examination. Echocardiography is then the definitive test: it shows which valve is affected, why it is not working, how severe the problem is, and how the heart chambers have responded.
Further assessment may include an ECG, blood tests, exercise testing to obtain an objective measure of capacity, a transoesophageal echocardiogram for a more detailed view, cardiac MRI, or CT imaging where a procedure is being planned.
When treatment is considered
A severe valve lesion on a scan does not by itself mean treatment is needed. The decision weighs the severity, whether symptoms are present, and whether the heart muscle or chambers are beginning to show strain. Timing matters: intervening too early exposes someone to unnecessary risk, while waiting too long allows damage that does not fully recover.
This is why surveillance echocardiography at planned intervals is a genuine treatment strategy rather than simply waiting. For most people with moderate disease, careful monitoring is the correct management for a long period.
The treatment options
Where intervention is appropriate, decisions are normally made by a specialist heart team rather than an individual clinician.
Surgical repair or replacement remains the established treatment for many patients, particularly younger ones. Catheter-based treatment, performed through a blood vessel rather than by opening the chest, has transformed options for others: transcatheter aortic valve implantation for aortic stenosis, and transcatheter edge-to-edge repair for mitral or tricuspid regurgitation.
Which is appropriate depends on the valve, the mechanism, your age, other medical conditions and your own priorities. All of this is discussed before any decision is made.
Sources
This page provides general information and does not replace individual medical advice, diagnosis or emergency care. Decisions about tests and treatment depend on your own history, examination and results.