Heart valve surgery (Heart valve repair or replacement surgery)
An overview of surgery to repair or replace a faulty heart valve, covering which valves are affected, repair versus replacement, valve choices and what recovery involves.
✓ Medically reviewed by a GMC-registered consultant · last reviewed September 2026 · next review September 2027 · how we review
In short
- Heart valve surgery repairs or replaces a narrowed or leaking valve so blood flows the right way again.
- Repair is usually preferred where possible (especially for a leaking mitral valve); replacement uses a mechanical or tissue valve, each with trade-offs.
- Mechanical valves last longest but need lifelong blood thinners; tissue valves usually avoid them but tend to wear out and may need replacing.
- This is serious surgery, but for some valves and patients a catheter-based option (such as TAVI) avoids open surgery — a heart team decides what suits you.
A plain-English summary. The detail — including risks and recovery — is below.
At a glance
A general guide. Your surgeon will give you advice for your situation.
Relieves the strain a narrowed or leaking valve puts on the heart
Your valve problem is mild or not causing symptoms, so monitoring may be safer than surgery now.
After open surgery you are cared for in intensive care or a high-dependency unit, with close monitoring, drains and lines that are removed as you...
A named contact and clear out-of-hours route for chest, breathing, rhythm or wound problems.
After open surgery you are cared for in intensive care or a high-dependency unit, with close monitoring, drains...
After open surgery you move to a ward, start walking and do breathing exercises, usually going home around a week...
Tiredness is normal. After open surgery, avoid heavy lifting, pushing and pulling to protect the chest, and do not...
Energy returns and many people resume light work and most activities. Cardiac rehabilitation helps you rebuild...
What is heart valve surgery?
The heart has four valves that act as one-way doors, keeping blood flowing in the right direction. A valve can become narrowed (stenosis), so blood struggles to get through, or leaky (regurgitation), so blood flows backwards. Either way, the heart has to work harder, which can cause breathlessness, tiredness, dizziness, chest tightness or blackouts.
Heart valve surgery either repairs your own valve or replaces it with an artificial one. Where a valve can be repaired — most often a leaking mitral valve — repair is usually preferred, because people often keep better heart function and avoid lifelong blood thinners. When a valve is too damaged, it is replaced with a mechanical valve (very durable but needs lifelong blood thinning) or a tissue valve (usually no lifelong blood thinners but tends to wear out).
The aortic and mitral valves are operated on most often. Surgery may be open (through the breastbone), minimally invasive (smaller cuts), or, for some valves and patients, done with a catheter rather than open surgery (such as TAVI for the aortic valve).
This is serious heart surgery with a real recovery. The decision to operate, the timing, repair versus replacement, and which valve to use should all be discussed with a specialist heart team. This guide is an overview — there are separate, more detailed Vuemedics guides for each specific operation.
Types & techniques
There isn't one single operation. The right approach depends on you — which is something to discuss with your surgeon.
Repair vs replacement, and valve choices
| Point | Repair | Replacement |
|---|---|---|
| Your own valve | Kept and reshaped | Removed and replaced |
| Blood thinners | Often not needed long term | Lifelong if mechanical |
| Best for | Repairable valves, especially mitral | Valves too damaged to repair |
| Wears out? | Durable, but leak can recur | Tissue valves wear; mechanical rarely do |
The right operation and valve depend on which valve is affected, the cause and severity, your age and your priorities. The detailed Vuemedics guides for each procedure go further.
Preparing for your surgery
- Be assessed by a specialist heart team, who decide whether repair, replacement or a catheter procedure suits you best.
- Expect tests such as an echocardiogram (sometimes through the gullet), ECG, blood tests and often a coronary angiogram or CT scan.
- Discuss repair versus replacement and, if relevant, mechanical versus tissue valve, including how lifelong blood thinners would fit your life.
- Tell the team about all medicines and supplements; blood thinners and some others need adjusting beforehand.
- Have a dental check, as treating dental infection first lowers the risk of a valve infection (endocarditis).
- Stop smoking as far ahead as possible to reduce wound, lung and healing problems.
- Arrange help at home and someone to drive you for several weeks after open surgery.
What happens
Most heart valve operations are done under general anaesthetic. In standard open surgery the surgeon reaches the heart through a cut down the centre of the chest, dividing the breastbone, and a heart-lung machine takes over while the heart is stopped so the valve can be repaired or replaced.
Minimally invasive surgery uses smaller cuts, often on the side of the chest, in selected patients. For some valves and patients, a catheter-based procedure (such as TAVI) treats the valve without open surgery, sometimes with sedation rather than a general anaesthetic.
After open surgery the breastbone is closed with permanent wires and the skin closed with stitches or clips. You wake up in intensive care or a high-dependency unit with monitoring, drains and lines that are removed over the following days. Catheter procedures usually involve a shorter stay and closer rhythm monitoring.
Is this operation right for me?
A good consultation should explore whether it's the right choice for you now — including reasons to wait or consider something else.
May not be suitable if…
- Your valve problem is mild or not causing symptoms, so monitoring may be safer than surgery now.
- You are too frail or unwell for open-heart surgery, where a catheter-based option or medical management may be considered.
- A mechanical valve is being considered but you cannot safely take lifelong blood thinners.
- Severe other illness means the risks of surgery outweigh the likely benefit.
Delay surgery if…
- You have an active infection, including dental infection, that should be treated first.
- Symptoms are mild and there is time to confirm severity and the best treatment.
- Important results are missing, such as an up-to-date echocardiogram, angiogram or CT.
- Blood thinners or other medicines need safe adjustment before surgery.
- You need time to stop smoking or optimise other conditions.
Alternatives to discuss
- Valve repair instead of replacement where the valve can be fixed.
- Catheter-based options (such as TAVI or a mitral clip) for selected patients.
- Careful monitoring with echocardiograms if the valve disease is not yet severe.
- Medicines to manage symptoms and other heart conditions, though they do not fix the valve.
- A second opinion or formal heart-team review if the best option is unclear.
Before you decide
Use this as a shared-decision checklist. The aim is not just “can this be done?”, but whether it is right for you, now, with the risks and alternatives clearly understood.
What matters most to me?
Think about symptoms, daily life, work, caring responsibilities, sport, fertility, travel, appearance and anxiety — the right choice depends on your priorities, not just the medical facts.
What are all my options?
Ask about waiting, monitoring, medicines, rehabilitation, a smaller or larger procedure, a different test, NHS referral, or a second opinion where that would help.
What would make me pause?
Active infection, pregnancy, unstable medical problems, smoking, medicines that increase bleeding, poor support at home, or feeling pressured are all reasons to slow down and get tailored advice.
What happens if I do nothing today?
For some problems, waiting is safe; for others, delay can make treatment harder. A good consultation should explain the trade-off in plain English.
Anaesthetic choices
The safest option depends on the operation, your health, the facility and your surgeon/anaesthetist. Ask what is planned and why.
Benefits
- Relieves the strain a narrowed or leaking valve puts on the heart
- Often improves breathlessness, tiredness, dizziness and exercise tolerance
- Can improve survival when severe valve disease is causing symptoms
- Repair keeps your own valve and usually preserves heart function well
- Restores reliable, one-way blood flow through the heart
Risks & complications
- Tiredness, low mood and poor appetite for several weeks after open surgery
- Chest-wound pain and tightness as the breastbone or chest heals
- An irregular heartbeat (often atrial fibrillation) in the first days
- Temporary problems with memory and concentration
- Wound or chest infection
- Bleeding needing a return to theatre or a blood transfusion
- A heart-rhythm problem needing a permanent pacemaker
- A temporary effect on kidney function
- Bleeding problems if you have a mechanical valve needing lifelong blood thinners
- Stroke during or soon after the operation
- Infection of a repaired or replaced valve (endocarditis), which is serious
- A remaining or returning leak, or a problem with the new valve, needing further treatment
- Death — uncommon for planned valve surgery, but a real risk that rises with age and other illness
The main risks to weigh are stroke, bleeding, rhythm problems needing a pacemaker, valve infection, and rarely death — and they rise with age, frailty, heart function and other illness. Mitral surgery generally carries somewhat higher risk than isolated aortic surgery, and combined operations carry more risk than single ones. Ask which specific operation is planned, whether repair is possible, and for your own estimated risk. The detailed Vuemedics guides cover each procedure more fully.
Published figures to discuss
Risk after heart valve surgery varies a great deal with the specific operation, your age, frailty, heart function and other illness, so a single figure can mislead. UK outcomes are audited nationally and published by hospital and surgeon. The ranges below are broad and general; the detailed Vuemedics guides for each procedure give more specific figures, and your personal risk should be estimated for you.
| Figure | Reported range | How to interpret it | Source / confidence |
|---|---|---|---|
| Death from planned valve surgery | Often in the low single figures of percent for isolated valve surgery, rising with age, mitral surgery and combined operations | Isolated aortic valve replacement is generally lower-risk than mitral surgery; UK results are audited nationally (NICOR/SCTS). | NHS — Heart valve replacementnhs.ukSource-linked context |
| Stroke around the time of surgery | Roughly 1–2% on average, higher with older age and arterial disease | Ask for your individual estimate for the specific operation planned. | NHS — Heart valve replacementnhs.ukPublished figure |
| Need for a permanent pacemaker | A small percentage, and higher after some catheter procedures such as TAVI | Depends on the valve and procedure; ask your team for the relevant figure. | Guide sourcesClinical context |
These are literature figures, not a personalised prediction. Your own risks and likely benefits depend on your circumstances, your health, and how your care is carried out and followed up.
Recovery — what to expect, and when
Recovery depends on the operation. Open surgery needs the breastbone to heal, so most people take about 2–3 months to recover fully, while minimally invasive and catheter-based procedures are usually quicker.
- Feeling drained or emotional for the first few weeks after open surgery
- A tight, sore or numb feeling along the chest wound
- Disturbed sleep and a reduced appetite early on
- Clicking or aching in the breastbone that eases as it heals
- Hearing a faint clicking from a mechanical valve, which is normal
Aftercare
- Take all medicines as prescribed; if you have a mechanical valve, never miss your blood thinner and attend monitoring.
- Keep wounds clean and dry and watch for signs of infection.
- Build up walking gradually rather than resting completely.
- After open surgery, avoid heavy lifting, pushing and pulling for about 3 months while the breastbone heals.
- Do not drive until your team and the driving authority's rules allow — that is the DVLA in England, Scotland and Wales, or the DVA in Northern Ireland.
- Tell any dentist or doctor you have had valve surgery, as you may need antibiotics for some procedures.
- Attend cardiac rehabilitation and keep follow-up appointments, including echocardiograms.
- Someone to drive you home and help for the first days
- A supply of your medicines and, if relevant, your blood-thinner monitoring plan
- Loose, comfortable clothing that does not press on the wound or access site
- A cushion to hold against your chest when coughing (after open surgery)
- Help arranged with shopping, cooking and chores for several weeks
- An alert card or note that you have had heart valve surgery
- Clinic and out-of-hours contact numbers saved
Scars and how they heal
After open surgery you will have a scar down the centre of the chest where the breastbone was opened. Minimally invasive surgery leaves smaller scars, often on the side of the chest, and catheter procedures usually leave only a small mark at the access site (often the groin). Scars are firm and pink at first and usually fade over many months; protecting them from strong sun while healing helps.
⚠ Get urgent help if…
- Signs of stroke — face drooping, arm weakness or slurred speech — call 999 immediately
- Sudden or worsening breathlessness, or fainting
- Chest pain that does not settle
- A wound that is increasingly red, hot, swollen or leaking, or a clicking, unstable breastbone
- Fever or feeling generally unwell, which can signal a valve or wound infection
- Unusual bruising, or bleeding that won't stop, if you take blood thinners
- A fast or very irregular heartbeat with dizziness
Who to contact: your surgeon or clinic first (keep their number to hand). For urgent advice when you can't reach them, call NHS 111. In an emergency, call 999.
General guidance — it doesn't replace the specific advice your surgeon gives you.
Results & realistic expectations
Successful valve surgery relieves the strain a faulty valve puts on the heart, and many people notice less breathlessness and more energy as they recover. When severe valve disease was causing symptoms, surgery can also improve how long and how well you live.
Surgery does not make the heart young again, and some changes from long-standing valve disease may not fully reverse. Repaired valves can occasionally leak again, tissue valves tend to wear over time, and any repaired or replaced valve carries a small ongoing risk of infection — so lifelong follow-up and good dental care matter.
How long the result lasts depends on the operation. A mechanical valve rarely wears out (but needs lifelong blood thinning); a tissue valve usually lasts a number of years (often around 15–20 for the aortic valve) before it may need replacing; and a repaired valve is generally durable, though a leak can recur in a minority of people. Worn tissue valves can sometimes be treated with a catheter valve-in-valve. Your surgeon will explain what is realistic for your specific operation.
Combining with other procedures
Valve operations are sometimes combined in one procedure, for example a valve and a coronary artery bypass, surgery on two valves, or a procedure to treat atrial fibrillation. Combining procedures increases the size and risk of the operation, so the heart team will discuss whether doing everything at once is right for you.
Follow-up & long-term care
You will usually be reviewed in the weeks after surgery to check your wounds, heart rhythm and recovery, with cardiac rehabilitation alongside. Longer term you will have periodic checks, often including echocardiograms to watch the valve, and (for a mechanical valve) regular blood-thinner monitoring for life.
- Lifelong blood-thinning medicine and regular blood tests if you have a mechanical valve
- Good dental care and telling clinicians you have had valve surgery, to reduce infection risk
- Periodic echocardiograms to check the valve over time
- Managing blood pressure and other heart risk factors
- Prompt review if breathlessness, dizziness or fainting returns
Revision and secondary surgery reality
- Tissue valves tend to wear over time and may need replacing; mechanical valves rarely do.
- A repaired valve can occasionally leak again and need further treatment.
- Worn tissue valves can sometimes be treated with a catheter valve-in-valve rather than repeat open surgery.
- Repeat (redo) heart surgery is technically harder and carries higher risk than a first operation.
Ask your surgeon for their own revision rate, what counts as a revision, and what is included in the written aftercare policy.
What good aftercare looks like
- A named contact and clear out-of-hours route for chest, breathing, rhythm or wound problems.
- A structured cardiac rehabilitation programme.
- Clear medicine instructions and, for mechanical valves, a reliable blood-thinner monitoring plan.
- Advice on dental care and antibiotic cover to reduce valve-infection risk.
- Planned echocardiogram follow-up to watch the valve over time.
What affects the cost
Costs vary a great deal between people and providers, and we don't publish prices. What matters is understanding what drives the cost and making sure your quote is complete. The main things that affect it:
- Surgeon's and anaesthetist's fees, and the specialist heart-team assessment
- Operating theatre, perfusion (heart-lung machine) and intensive-care time
- Whether the valve is repaired or replaced, and the type of valve or device used
- Whether surgery is open, minimally invasive or catheter-based, and whether procedures are combined
- Length of hospital and intensive-care stay, longer if complications occur
- Pre-operative tests, including echocardiography and often CT or angiography
- Cardiac rehabilitation and follow-up echocardiograms
- The surgeon's and anaesthetist's fees
- Theatre, perfusion and intensive-care charges
- Any valve or device cost, and what is included if the plan changes during surgery
- Pre-operative tests and assessments
- Expected hospital length of stay and the cost of extra days
- Follow-up appointments, echocardiograms and, if relevant, blood-thinner monitoring
- What happens, and who pays, if there is a complication, longer stay or readmission
On the NHS? Heart valve surgery is commonly provided by the NHS when clinically indicated; private care is mainly used for choice of surgeon, hospital or timing rather than a different operation.
You're entitled to your total cost in writing — including aftercare and any revision — before you decide.
Consent traps and marketing red flags
These are not small details. They are often where patients lose choice, time to reflect, or realistic expectations.
Consent traps
- Not being told which specific operation is planned, or whether repair is possible.
- Valve choice (mechanical vs tissue) decided without a full discussion of the trade-offs for your life.
- Risks of stroke, pacemaker, bleeding and death not given as your personal estimate.
- Lifelong blood thinning and its monitoring not explained before agreeing to a mechanical valve.
- No written aftercare, dental-care and warning-signs plan before discharge.
Marketing red flags
- Describing major heart surgery as 'routine' or 'low risk' without your own figures.
- Promising a 'permanent' fix without mentioning valve wear, recurrent leak or infection risk.
- Pushing a particular approach (keyhole, catheter or a valve type) as best for everyone.
- Downplaying recovery time, breastbone healing or the value of cardiac rehabilitation.
Choosing a surgeon safely
- Check your surgeon is on the GMC Specialist Register for this area.
- Make sure they practise at a CQC-registered location, and look for membership of bodies like BAAPS or BAPRAS.
- You're entitled to a two-stage consent process with time to reflect (a cooling-off period). The surgeon who will operate must consent you — not a salesperson.
- Be wary of pressure: time-limited offers, discounts or deposits taken before you've had time to think are red flags, not bargains.
- You're entitled to your total cost in writing — including aftercare and any revision — before you decide.
Questions to ask your medical professional
Take this to your consultation. A good surgeon will welcome every one of these.
- Which valve is affected, and will it be repaired or replaced?
- If replaced, do you recommend a mechanical or tissue valve for me, and why?
- Could I have a minimally invasive or catheter-based procedure instead of open surgery?
- What is my personal estimated risk of stroke, pacemaker, bleeding and death?
- How experienced are you and this centre with my specific operation?
- What follow-up and valve checks will I need over the years?
- Are you on the GMC Specialist Register for this area, and which Royal College or professional body are you a member of?
- Will you be the surgeon who carries out my operation, and who looks after me afterwards?
- What are the risks for someone like me, and how often do your own patients have a problem or need it repeated or redone?
- What does a realistic result look like — and what can this operation not achieve?
- What are my options, including waiting, doing nothing for now, or choosing a different approach?
- Can I have written information, results and aftercare instructions in a format I can use, including any accessibility or communication support I need?
- What is the total cost in writing, including any follow-ups, and how much time do I have to decide?
Frequently asked questions
Is my valve repaired or replaced?
Mechanical or tissue valve — which is better?
Can valve problems be treated without open surgery?
How long is the recovery?
Will I need blood thinners?
Is valve surgery available on the NHS?
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How we made this page
Medically reviewed by a GMC-registered consultant. Written in plain English, checked against NHS, NICE, GMC and relevant Royal College / specialist-society guidance, and kept under review. No clinic paid to appear on this page, and we publish no pricing. This is general information to help you prepare — it is not a substitute for advice from your own clinician. How we review our guides →
Source hierarchy: UK regulator and NHS/NICE guidance first, then relevant Royal College or specialist-society guidance, then peer-reviewed evidence for procedure-specific figures where available.
Sources & standards: British Heart Foundation — Heart valve surgery NHS — Heart valve replacement NICE NG208 — Heart valve disease in adults Society for Cardiothoracic Surgery (SCTS) — patient information DVLA — assessing fitness to drive DVA Northern Ireland — telling DVA about a medical condition
Reviews reflect patients' experience of care, not clinical outcomes. For procedure volumes and outcome data see PHIN.
Last medically reviewed 2026-09-21. Spotted something wrong or out of date? Report an error in this guide.
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