by admin-blog-kh | April 30, 2026 4:59 am
You or a loved one has been told that there is a problem with your mitral valve and has to undergo open-heart surgery. The first decision to be made is whether the mitral valve should be repaired or replaced. This article explores these two techniques, their key differences and which method leads to better outcomes.
The human heart has four chambers: two upper chambers the left and right atria and two lower chambers the left and right ventricles. Oxygen-rich blood from the lungs enters the left atrium, which then contracts to push the blood into the left ventricle.
This flow is controlled by the mitral valve, a vital structure that opens to allow blood to pass into the left ventricle and then closes tightly to prevent any backflow.
Once in the left ventricle, the purified blood is pumped into the aorta, from where it circulates throughout the body.
When the mitral valve does not function properly, the valve becomes stiff and narrow (stenosis) due to ageing, previous heart attacks or infection (rheumatic fever); the heart needs to put in more effort to pump blood through the valve. Mitral valve dysfunction can also cause leaky (regurgitation) valves, wherein blood flows in the reverse direction, reducing the amount of blood pumped forward. Both stenosis and regurgitation can cause the following symptoms:
Based on the cause of mitral valve dysfunction, the surgeon decides whether a repair or replacement of the valve is required. The traditional method to repair or replace the valve is open-heart surgery; however, newer, less invasive and robotic techniques are being used, where the chest incision size is small, reducing the pain post-surgery.
Compared with mitral valve replacement, where the damaged valve is removed and replaced with an artificial valve, mitral valve repair involves repairing the natural valve with rings or stitches. Unlike mitral valve replacement, mitral valve repair does not require the patient to take blood thinners, the hospital stay is shorter and recovery time is faster.
Repair is always preferred as one avoids the complications that arise from placing a foreign material in the body; in addition, the recovery is faster and the heart performance is better.
In mitral valve repair, the surgeon reshapes, reinforces or stitches the faulty valve. The torn leaflets are reshaped with stitches or small artificial cords. Calcium deposits are removed for valves to open and close better. An annuloplasty ring is placed at the base of the valve to maintain the shape and tightness. Sometimes, the tissue pieces called cords have to be removed or replaced to control the motion of the valve.
Repair is recommended for patients with mitral valve regurgitation caused due to ageing or weak connective tissues, those with mitral valve problems since birth and certain cases of infection, such as endocarditis, and rheumatic valve disease.
We thank P. Manohar doctor and Surgeon Dr Anbarasu for my wife’s mitral valve repair surgery and also my wife says about ICU nurses nursing very well with patience. We thank particularly Sandhiya poovizhi and Abinaya nurses My wife is Viji Sree Lakshmi and I thank Doctor Anbarasu team doctors we don’t know their names. Ward nurses also treating very well. Thank you.
– Gunaseelan Thiyagu
We did a Mitral valve replacement surgery for my mom at Kauvery with Dr Anbarasu and Dr Manokar successfully. We are very happy with the doctors, staff, support staff and all services. Definitely recommend.
– Divya Jaiger
It was good hospital service where I have admitted my mom for mitral valve replacement surgery. where they tooked lot of care and made operation into success one.. Thanks a lot to Dr. Manoj. S and Dr. A.R. Raghuram sir. For me now the both doctors are equal to God who saved my mom.
– Sathiya
Replacement may be necessary when there is calcium buildup, a severely damaged or deformed valve, in some cases of ischaemic or rheumatic valve disease, unsuccessful repairs in the past or when repair cannot restore valve function.
Mechanical valves: They are made of metal or carbon and are long-lasting. The patient has to take blood-thinning medications daily to prevent blood clotting.
Biological valves: These valves are made of animal tissue. Patients are not required to take blood thinners. The valve may wear out in 10-20 years, requiring another replacement.
Both surgeries carry some general risks:
Most people will experience relief from breathlessness, improved energy levels, and a return to their active lifestyle. Patients must attend follow-up visits regularly to ensure the replaced or repaired valve is functioning properly.
Your doctor will recommend cardiac rehabilitation[5], wherein you are educated about caring for your heart and exercises to recover from valve surgery. A healthy lifestyle, including quitting smoking, maintaining a healthy weight, eating nutritious food, managing stress, and getting 7-8 hours of uninterrupted sleep, is crucial following surgery. Regularly monitor blood pressure, diabetes and cholesterol levels to ensure they are under control.
Most surgeons prefer mitral valve repair to replacement as it results in better survival rates, fewer complications and better heart function. The need for medications and additional surgeries is lower with repair. However, repair requires skilled surgeons and is not performed at all cardiac centres. Repair may not be suitable in cases where the valve is severely infected or damaged. In such cases, replacement is a lifesaver. The choice of surgery is determined by the cause of valve dysfunction and the surgical team’s expertise. Do not hesitate to ask your doctor if a mitral valve repair is possible, and choose a centre with an experienced team to perform the surgery.
Why is mitral valve repair preferred over replacement?
Repair preserves your natural valve, improves heart function, and reduces complications. It also avoids lifelong blood thinners in most cases.
When is mitral valve replacement necessary?
Replacement is recommended when the valve is severely damaged, calcified, or infected, and cannot be safely repaired.
Is mitral valve repair safer than replacement?
In many cases, yes. Repair has lower risk of complications, shorter hospital stay, and better long-term survival when performed by experienced surgeons.
How long does recovery take after mitral valve surgery?
Most patients start recovering within weeks. Minimally invasive techniques can reduce recovery time compared to traditional open-heart surgery.
Will I need lifelong medication after valve surgery?
Patients with repaired valves usually don’t need lifelong blood thinners. Those with mechanical valve replacements typically require them permanently.
How long do replacement valves last?
Mechanical valves can last a lifetime, while biological valves usually last 10–20 years and may need replacement later.
What are the risks of mitral valve surgery?
Common risks include bleeding, infection, and irregular heartbeat. Choosing an experienced cardiac team reduces these risks significantly.
Where can I get expert treatment for mitral valve disease?
For advanced cardiac care and experienced surgeons[6], Kauvery Hospital offers comprehensive diagnosis, minimally invasive procedures, and personalised heart care.
Kauvery Hospital is globally known for its multidisciplinary services at all its Centers of Excellence, and for its comprehensive, Avant-Grade technology, especially in diagnostics and remedial care in heart diseases, transplantation, vascular and neurosciences medicine. Located in the heart of Trichy (Tennur, Royal Road and Alexandria Road (Cantonment), Chennai (Alwarpet, Radial Road & Vadapalani), Hosur, Salem, Tirunelveli and Bengaluru, the hospital also renders adult and paediatric trauma care.
Chennai Alwarpet – 044 4000 6000 • Chennai Radial Road – 044 6111 6111 • Chennai Vadapalani – 044 4000 6000 • Trichy – Cantonment – 0431 4077777 • Trichy – Heartcity – 0431 4077777 • Trichy – Tennur – 0431 4022555 • Maa Kauvery Trichy – 0431 4077777 • Kauvery Cancer Institute, Trichy – 0431 4077777 • Hosur – 04344 272727 • Salem – 0427 2677777 • Tirunelveli – 0462 4006000 • Bengaluru – 080 6801 68011
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