What is heart valve disease?
Heart valve disease occurs when one or more of the heart's four valves becomes narrowed (stenosis) or fails to close properly (regurgitation), forcing the heart to work harder. The most common forms in the UK are aortic stenosis and mitral regurgitation, both increasingly frequent with age; congenital valve abnormalities and previous infection can also be responsible. Mild valve disease is common and often needs nothing more than periodic monitoring, but significant disease progresses and can lead to breathlessness, heart failure and rhythm problems if untreated.
Many cases are first suspected when a doctor hears a murmur. Diagnosis and grading rely on an echocardiogram — an ultrasound scan of the heart — sometimes supplemented by ECG, exercise testing, CT or cardiac MRI to plan treatment timing.
Common symptoms
- Breathlessness on exertion or lying flat
- Tiredness and reduced stamina
- Chest tightness or discomfort
- Dizziness or fainting, especially on exertion
- Palpitations
- Swollen ankles
- Sometimes no symptoms — just a murmur found at a check-up
How long will you wait?
The bottleneck starts with diagnostics — routine NHS echocardiograms often take months in many areas — and once severe disease is confirmed, waits for valve surgery or TAVI add further months, a delay that matters because outcomes in severe symptomatic valve disease worsen the longer treatment is deferred.
Privately, you can typically see a cardiologist within 3–7 days, have an echocardiogram within 1–2 weeks, and proceed to surgery or TAVI within 2–6 weeks where indicated.
NHS England median referral-to-treatment wait: 12.4 weeks, with 2.5 million people waiting over 18 weeks (May 2026). Individual waits vary by trust and urgency.
Treatment options
- Regular monitoring. Mild or moderate valve disease is followed with periodic echocardiograms so intervention can be timed correctly.
- Medication. Drugs manage symptoms and complications such as fluid retention or atrial fibrillation, though they cannot fix the valve itself.
- Surgical valve repair or replacement. Open-heart surgery to repair the valve or replace it with a mechanical or tissue valve, the established treatment for severe disease.
- TAVI. Transcatheter aortic valve implantation delivers a new aortic valve via a leg artery, avoiding open surgery for suitable patients.
- Transcatheter mitral repair. Keyhole clip-based techniques treat selected patients with mitral regurgitation who are unsuitable for surgery.
What does private treatment cost?
As a guide, a private echocardiogram typically costs £300–£500, surgical valve replacement £25,000–£40,000 and TAVI £30,000–£45,000, including hospital stay.
Does health insurance cover heart valve disease?
Private medical insurance typically covers valve disease diagnosed after your policy begins, including echocardiography, surgery and — on most comprehensive policies — TAVI, making this one of the highest-value areas of PMI cover. A murmur or valve problem documented before you joined would normally be excluded as pre-existing. Lifelong surveillance echocardiograms of a stable valve may be classed as chronic monitoring, so check your policy's stance.
Frequently asked questions
I have been told I have a heart murmur — should I worry?
Not necessarily. A murmur is simply the sound of turbulent blood flow, and many are 'innocent', particularly in young people, or reflect mild valve changes that never need treatment. The right response is an echocardiogram to establish the cause and severity. If valve disease is found, most cases are mild and simply monitored; only a minority ever progress to needing intervention.
When does a heart valve need to be replaced?
Broadly, when disease becomes severe and either causes symptoms — breathlessness, chest tightness, dizziness — or begins to affect the heart's size and function on the echocardiogram. Intervening at the right moment matters: too early adds unnecessary risk, too late risks lasting heart damage. That is why regular echo surveillance is central to valve care, and why symptomatic severe disease should be treated promptly.
What is the difference between TAVI and open valve surgery?
TAVI delivers a new aortic valve through a catheter inserted in the leg artery, avoiding the opened chest and heart-lung bypass of conventional surgery — recovery is measured in days rather than weeks. Originally reserved for patients too frail for surgery, it is now used across a broader range. Surgery still suits many younger patients and those needing repairs TAVI cannot perform; a heart team advises on the best route.