Overview

What is aortic valve regurgitation?

Aortic valve regurgitation is a problem with the aortic valve. This valve works like a one-way gate, opening so that blood from the left ventricle (the heart's main pump) can be pushed into the aorta, the large artery leaving the heart. From the aorta, blood flows into the other arteries and through the body. When the heart rests between beats, the aortic valve closes to keep blood from flowing backward into the heart. See a picture of how the aortic valve works.

But when you have aortic valve regurgitation, the aortic valve does not close as it should. With each heartbeat, some of the blood leaks back (regurgitates) through the aortic valve into the left ventricle. The body does not get enough blood, so the heart has to work harder to make up for it. See a picture of aortic valve regurgitation.

In most cases, it takes many years for symptoms to start. This is called chronic aortic valve regurgitation. The heart makes up for reduced blood flow by getting bigger so that it can pump out more blood. But if the valve problem is not fixed and the leaking gets worse, symptoms start. At this point, valve replacement surgery is often needed to prevent abnormal heartbeats, heart failure, and permanent damage to the heart.

In rare cases, the valve problem starts suddenly and without warning. This is called acute aortic valve regurgitation. It requires medical help right away.

In some people, only small amounts of blood leak back into the left ventricle. This normally does not cause any symptoms or problems. This topic focuses on the more severe cases where large amounts of blood leak back into the left ventricle.

What causes aortic valve regurgitation?

Any condition that damages the aortic valve can cause aortic valve regurgitation. Common causes of chronic valve problems include:

• Being born with a damaged aortic valve.
• Aging.
• Enlargement of the aorta because of high blood pressure or hardening of the arteries.
• Rheumatic fever.

The most common causes of sudden (acute) aortic valve regurgitation include:

• Endocarditis, which is an infection in the heart.
• Aortic dissection, which means that the inner layer of the aorta separates from the middle layer.
• Problems with a replacement (prosthetic) aortic valve.
• Trauma to the heart valve or aorta.

What are the symptoms?

Early on, people with chronic aortic valve regurgitation often do not have any symptoms. But as the heart pumps harder to make up for the valve problem, the heart gets weaker over time, and symptoms start. These symptoms include:

• Fatigue or weakness.
• Shortness of breath, most often when you are active.
• A fast, slow, or uneven heartbeat (arrhythmia).
• A feeling that your heart is pounding, racing, or beating unevenly (palpitations).
• Chest pain (angina), often brought on by exercise, when the heart has to work harder.
• Fainting.

When the valve problem is acute, these symptoms are sudden, often more intense, and life-threatening.

How is aortic valve regurgitation diagnosed?

Your doctor may suspect that you have this type of valve problem after hearing a heart murmur through a stethoscope. He or she will ask about your symptoms and past health and will want to know if you have any family history of heart disease.

You will get further tests, like an echocardiogram to confirm the diagnosis, to show how much the valve is leaking, and to see how well the left ventricle is working.

How is it treated?

Your treatment will depend on what is causing your valve problem and if you have symptoms.

If your aortic valve regurgitation starts suddenly and is acute, you'll need valve replacement surgery right away.

But in most people, aortic valve regurgitation is chronic and starts slowly. So when people are first diagnosed, treatment is not needed. Your doctor will probably recommend some lifestyle changes to keep your heart healthy. He or she may advise you to:

• Quit smoking. And stay away from secondhand smoke.
• Follow a heart-healthy diet.
• Get regular exercise. Walking is a good choice.
• Stay at a healthy weight.

Even when you aren't getting treatment, your doctor will see you regularly to check on your heart. In some cases, doctors prescribe medicine to lower blood pressure and delay the advance of the disease.

If symptoms appear or your heart does not pump as well, you will probably need valve replacement surgery.

Frequently Asked Questions

Cause

Different factors cause sudden (acute) and long-standing (chronic) aortic valve regurgitation.

Chronic aortic valve regurgitation

Causes of chronic aortic valve regurgitation include:

• Congenital heart defects. Some people are born with aortic valves that have only one (unicuspid valve) or two (bicuspid valve) leaflets, instead of the normal valve with three leaflets (tricuspid valve). The structure of these abnormal valves often prevents them from closing completely when the heart is at rest, allowing blood to leak back into the left ventricle. These types of valves are also more susceptible to deposits forming on the surface, which can further impair the valve's ability to close properly.
• Aging. The aortic valve deteriorates with the normal wear and tear on the valve that comes with age.
• Rheumatic fever.Rheumatic fever used to be the most common cause of valvular problems in the United States. But the widespread use of antibiotics has nearly eliminated it in recent years. Rheumatic fever can develop from an untreated strep throat infection. Although people generally have rheumatic fever as children, the effects often are not evident until adulthood. It can lead to chronic scarring of the leaflets of the valves and prevent them from closing completely, causing regurgitation.
• Infection in the heart (infective endocarditis).Endocarditis is a common cause of aortic valve regurgitation. When bacteria begin growing on the valve or inside the heart, they form a colony, known as a vegetation, which may grow to be several centimeters in size. These colonies can prevent the valve from closing completely, causing regurgitation. The bacteria also can eat through the valve leaflet, leaving a hole through which blood can leak backward.
• Enlarged aorta (dilation of the aortic root). The portion of the aorta that is connected to the heart is called the aortic root. If it becomes enlarged (aortic root dilation), it can lead to regurgitation by pulling the leaflets of the valve apart and out of shape, causing them to leak. Aortic root dilation can be caused by age, high blood pressure, a disorder of the body's connective tissues (Marfan's syndrome), syphilis, and autoimmune diseases, in which your immune system begins to attack your own body's cells.
• The diet medicine fen-phen. Fen-phen was a popular diet drug that was taken off the U.S. market in 1997 because of its link to heart valve disease, including aortic valve regurgitation.
• Radiation treatments for cancer. In rare cases, radiation treatments to the chest, especially in young people, can damage the aortic valve.

Acute aortic valve regurgitation

Acute regurgitation can be caused by:

• Endocarditis, an infection in the heart. Endocarditis is the most common cause of acute regurgitation.
• Problems with the replacement (prosthetic) aortic valve. Some people who have had surgery to replace the aortic valve develop aortic valve regurgitation with the new valve.
• Aortic dissection. In aortic dissection, blood can leak into a tear in the inner lining of the aorta, causing the walls of the aorta to separate. When a separation occurs, blood can seep into the middle layer of the aorta and damage the vessel and the structure of the aortic valve.
• Trauma to the chest. An injury, such as hitting the dashboard with your chest in a car accident, can damage the valve.

Acute aortic valve regurgitation is an emergency that must be treated immediately with surgery.

Symptoms

Many young people who have aortic valve regurgitation do not have symptoms. When symptoms finally appear, they often indicate that the heart is significantly affected. Whether these symptoms come on gradually (as in chronic regurgitation) or more suddenly (as in acute regurgitation), they may be confused with symptoms of heart failure. See a picture of aortic valve regurgitation.

If only a small amount of blood is leaking back through the aortic valve, you may not have symptoms, and heart function may not be affected. As the amount of leakage increases, symptoms usually appear, and the function of the heart may be affected.

Acute aortic valve regurgitation is an emergency. Symptoms include:

• Shortness of breath, especially with activity.
• Fatigue and weakness.
• Fainting (syncope).
• Trouble breathing at night.
• Swelling in the legs and sometimes the rest of the body (edema).
• Awareness of the heartbeat (palpitations), especially when lying on the left side.
• Dizziness and lightheadedness.
• Abnormal heartbeats (arrhythmias).
• Chest pain (angina), often brought on by exertion (sometimes a sign of severe aortic valve regurgitation).

If acute aortic valve regurgitation develops (for example, from an infection in the heart [endocarditis]), the only symptoms may be severe shortness of breath, a rapid heart rate, and lightheadedness.

What Increases Your Risk

The risk factors for aortic valve regurgitation are:

• Congenital heart defects, such as being born with an aortic valve with one (unicuspid) or two (bicuspid) flaps, called leaflets, rather than three.
• Old age.
• Male gender.

Tell your doctor if one of your close family members has a congenital aortic valve defect, because you may be at risk for having one.

As you age, your valves sustain greater wear and are more likely to leak, increasing the risk of aortic regurgitation. Also, men are more likely than women to develop the condition.

Age; a disorder of the connective tissues (Marfan's syndrome); high blood pressure; autoimmune diseases, in which your immune system begins to attack your body's own cells; and syphilis put you at increased risk for developing an enlarged aorta, which in turn increases your risk for regurgitation.

When to Call a Doctor

Call your doctor if you have symptoms of aortic valve regurgitation such as fainting, chest pain, or shortness of breath. For more information, see the Symptoms section of this topic. Your doctor will confirm whether you have valve problems or some other condition.

Acute aortic valve regurgitation comes on suddenly. Symptoms include severe shortness of breath, a rapid heart rate, lightheadedness, weakness, confusion, and chest pain.

Acute aortic valve regurgitation is a medical emergency. Call 911 immediately.

Who to See

Health professionals who can diagnose aortic valve regurgitation include:

• Family medicine doctors.
• General practitioners.
• Internists.
• Emergency medicine specialists.

After you have been diagnosed, you may be referred to a cardiologist, who specializes in heart diseases. The specialist will monitor your condition and help determine when valve replacement is needed.

Exams and Tests

You should have a physical exam periodically, with the frequency depending on your age, overall health, and risk factors for various conditions. Most heart valve problems are discovered by a doctor while listening to the heart with a stethoscope. If your doctor finds aortic valve regurgitation during a routine physical, the condition will likely not have progressed to the point of being severe and needing immediate treatment. By treating the condition early, you may be able to extend, possibly even by several years, the time before you need valve replacement surgery. Because all artificial valves eventually wear out, this could mean one fewer valve replacement in your lifetime.

In testing for aortic valve regurgitation, your doctor will try to determine whether you have the condition and what type of regurgitation you have (acute or chronic). The doctor also will want to assess how severe the regurgitation is and whether you have any complications, such as abnormal heartbeats (arrhythmias) or heart failure.

A medical history and physical exam are a routine part of any evaluation of how well your heart is working. Aortic valve regurgitation can generally be diagnosed by physical exam.

Further testing may be needed to find out how much the valve is leaking. Tests also are needed if you have symptoms, because they can easily be confused with symptoms of several other heart conditions, including coronary artery disease (CAD) and heart failure. Aortic valve regurgitation also can be confused with other heart valve conditions.

During the physical exam, your doctor will listen for an extra heart sound (a murmur). If you have a certain type of heart murmur, your doctor may suspect aortic valve regurgitation and suggest further tests, which may include:

• Echocardiogram (echo)/transesophageal echocardiogram (TEE). Echocardiography (echo) can be used to look at the heart valves and the shape of the leaflets and to see whether the valves are leaking. Echocardiograms also measure the ability of the lower left heart chamber (left ventricle) to fill with blood and pump properly. Echo also helps measure heart size and may show whether the heart muscle is abnormally thickened because of aortic valve regurgitation. Doctors use an echo to guide treatment decisions, such as whether to perform valve surgery, which may be needed if there is evidence of an enlarged left ventricle (a sign of heart failure).
• Electrocardiogram (ECG, EKG). The results of electrocardiography (electrocardiogram) may show abnormal electrical activity, suggesting that your heart is enlarged or has an increased workload caused by the backflow of blood or by an arrhythmia.
• Chest X-ray. If you have aortic valve regurgitation, a chest X-ray may show that the lower left ventricle is enlarged. In some cases, the blood vessel leaving the heart (aorta) may be enlarged just beyond the aortic valve.
• Exercise electrocardiogram. Exercise electrocardiography may be needed to see how the heart responds to exercise in a person who does not exercise regularly or when symptoms are present.
• Angiogram/aortogram. During an angiogram of the aorta (aortogram), a thin, flexible tube called a catheter is placed into the femoral artery in the upper thigh and threaded to the left ventricle and aorta. Dye is then injected through the catheter, and the flow of the dye through the aortic valve can help your doctor determine how much the aortic valve is leaking. Also, coronary angiogram, in which the coronary arteries are viewed, is usually done at the same time.
• Radionuclide ventriculogram (nuclear scanning). Ventriculography can measure how well the left ventricle is pumping and how much blood is pumped out of the chamber with each heartbeat.

If you have aortic valve regurgitation, you will see your doctor for regular exams including an echocardiogram. How often you have an echocardiogram depends on the severity of your regurgitation. Mild regurgitation requires an echocardiogram every 2 to 3 years. A moderate condition requires an echo every year. And with severe regurgitation, you may have to have an echo every 4 to 6 months.

Treatment Overview

Treatment for aortic valve regurgitation usually depends on whether you have symptoms from your leaky heart valve and whether your heart is pumping effectively. Other factors that play a part in treatment decisions include your age (older people may be at greater-than-average risk for complications of some treatments), risks associated with surgery, and the experience of the doctor and health care facility performing the procedures.

If you have symptoms, surgical treatment may be needed. If your symptoms develop suddenly (acute aortic regurgitation), immediate surgery to replace the valve is usually needed.

The treatment for acute aortic regurgitation is usually limited to immediate surgery, so this treatment overview will discuss the treatment of chronic aortic valve regurgitation.

Initial treatment

Your doctor will assess the cause and severity of your aortic valve regurgitation and how effectively your heart is able to compensate for it. In addition to some preliminary tests—including routine blood tests and an electrocardiogram—an exercise electrocardiogram (also called exercise EKG or cardiac stress test) can be done. This test will help you and your doctor see whether you have any symptoms while you are exercising.

An echocardiogram will probably be done too. The echocardiogram measures how much your valve is leaking, the size of your left ventricle, and your ejection fraction. These measurements help your doctor know when surgery is needed.

If your regurgitation is mild and you do not have any symptoms, your doctor may not prescribe daily heart medicines. If you have had rheumatic fever, you may need to take antibiotics daily for the following 5 to 10 years, depending on your heart's condition.

If your regurgitation is moderate to severe, your doctor may prescribe a high blood pressure medicine. These medicines include the calcium channel blocker nifedipine, an angiotensin-converting enzyme (ACE) inhibitor or an angiotensin II receptor blocker (ARB), or the vasodilator hydralazine.

Since your heart is already working overtime to keep up with your body's needs, your doctor will probably recommend specific lifestyle changes to decrease your heart's workload.

• If you smoke, try to quit. Medicines and counseling can help you quit for good.
• Your doctor will also recommend that you follow a heart-healthy diet.
• If you do not have symptoms of aortic valve regurgitation, and your left ventricle is working well, your doctor may recommend regular, light aerobic exercise, such as walking. But do not start an exercise program on your own without first discussing it with your doctor. Your doctor may recommend you have tests to see what sort of exercise is safe for you.
• Good dental hygiene and regular dental checkups are important. Poor dental health can increase the risk of bacteria spreading to your heart.
• Avoid getting sick from the flu. Get a flu shot every year.

Report any symptoms of chest pain, fainting, and shortness of breath to your doctor immediately. You will also need to follow up after 2 or 3 months for another screening and have regular appointments to find out whether your condition is getting worse.

Ongoing treatment

Symptoms of chronic aortic valve regurgitation most commonly develop when you are in your 40s or 50s, but there is no way to gauge how quickly symptoms will develop in each case. Some people remain free of symptoms for decades, while in others, progression to symptoms takes 2 to 3 years.

Regardless, you will need to have regular echocardiograms (echos) to find out whether your aortic regurgitation is getting worse. The echocardiogram estimates your ejection fraction—the amount of blood that is leaving your left ventricle, the heart's main pump—and the size of your left ventricle. A declining ejection fraction and an increasing diameter of your left ventricle indicate decreasing heart function and worsening regurgitation.

Mild regurgitation requires an evaluation with an echocardiogram every 2 to 3 years. A moderate condition requires an echo every year. And with severe regurgitation, you may have to have an echo every 4 to 6 months.

The American College of Cardiology/American Heart Association (ACC/AHA) guidelines recommend having aortic valve replacement surgery if you have severe regurgitation and one of the following conditions:¹

• You have symptoms.
• Your ejection fraction drops below 50% at rest.
• Your left ventricle enlarges to more than 55 millimeters at rest.
• You are going to have another open-heart surgery such as coronary artery bypass graft surgery.

Your doctor may recommend that you have surgery even if you do not have symptoms, because symptoms typically only occur after the condition has progressed to the point that it has already damaged the heart.

It is extremely important that you report any symptoms or changes in your symptoms to your doctor. Your doctor will rely on you to provide an accurate assessment of how you feel and how your symptoms have changed since your last visit.

If you are not already taking medicines, at some point your doctor may prescribe a high blood pressure medicine. These medicines include the calcium channel blocker nifedipine, an angiotensin-converting enzyme (ACE) inhibitor or an angiotensin II receptor blocker (ARB), or the vasodilator hydralazine.

If aortic valve regurgitation causes chest pain, medicines called nitrates (nitroglycerin) can sometimes be tried to help relieve the pain. Antiarrhythmic medicines may be needed if aortic valve regurgitation leads to abnormal heart rhythms (arrhythmias). If aortic valve regurgitation causes heart failure, medicines such as digoxin and diuretics are often used to help the heart pump more effectively.

People who have had rheumatic fever may need to take antibiotics daily for 5 to 10 years after the infection, depending on the damage to the heart.

Avoid getting sick from the flu. Get a flu shot every year.

Your doctor will stress that you quit smoking and avoid secondhand smoke, eat a heart-healthy diet, limit your sodium intake, and possibly follow an exercise program. If you can exercise, do activities that raise your heart rate. Prescribed exercise is often part of a cardiac rehabilitation program.

Treatment if the condition gets worse

If your aortic valve regurgitation is getting worse and your heart is not able to compensate for the extra workload, your doctor will recommend that you have aortic valve replacement surgery, even if you do not have symptoms. But if you have symptoms, aortic valve replacement surgery is the only cure for aortic regurgitation.

The American College of Cardiology/American Heart Association (ACC/AHA) guidelines recommend having aortic valve replacement surgery if you have severe regurgitation and one of the following conditions:¹

• You have symptoms.
• Your ejection fraction drops below 50% at rest.
• Your left ventricle enlarges to more than 55 millimeters at rest.
• You are going to have another open-heart surgery such as coronary artery bypass graft surgery.

Your doctor may recommend that you have surgery even if you do not have symptoms, because symptoms typically only occur after the condition has progressed to the point that it has already damaged the heart.

Other risk factors, including age, speed of deterioration, and overall health, will also be considered in deciding the timing of surgery.

A small number of people may suffer from other severe and debilitating conditions that make valve replacement surgery too dangerous. Also, some people may choose not to have valve replacement surgery for personal or philosophical reasons. For example, a person may believe that he or she does not have enough remaining years to make surgery worthwhile.

People with symptomatic aortic valve regurgitation who do not have corrective surgery face progression to the severe stages of heart failure and, on average, have a life expectancy of 2 to 4 years. This means they will probably have to cope with an end stage to the disease. As you near the end stage of your condition, you may want to consider making advance directives, which are documents that allow you to determine the type of care you wish to receive in case you are not able to make your wishes known at the end of your life. For more information, see the topic Care at the End of Life.

Ongoing Concerns

After you are diagnosed with long-lasting (chronic) aortic valve regurgitation, be sure to work with your doctor to monitor the condition of your valve and report immediately any shortness of breath, fainting, chest pain, or other symptoms. (Symptoms of acute aortic valve regurgitation come on suddenly. Acute regurgitation is an emergency that requires immediate valve replacement surgery.)

If you do not have symptoms

Many people are surprised when diagnosed with chronic aortic valve regurgitation, because they do not have symptoms. People who have chronic regurgitation, even when it's moderate or severe, can have a good prognosis for many years.

Even though you may feel fine, it is important to guard against a false sense of security during this stage of chronic aortic valve regurgitation. Significant damage can occur to your heart during this period.

If you have symptoms

If you have symptoms, valve replacement surgery is the only cure for aortic valve regurgitation. If you cannot or choose not to have surgery, you likely will develop heart failure and your life span will be greatly reduced. The condition usually reduces average life expectancy to about 2 years if you develop heart failure and 4 years if you develop chest pain (angina).² With corrective surgery, you may reach a normal life expectancy. For more information, see the topic Heart Failure.

Symptoms of chronic regurgitation most commonly develop in a person's 40s or 50s. But there is no way to gauge how quickly symptoms will develop in any one person. Some people can remain symptom-free for decades. In others, progression to symptoms takes 2 to 3 years. You may develop symptoms more quickly if the left ventricle does not contract fully (depressed systolic function).

Complications may develop from severe, symptomatic chronic aortic valve regurgitation. Heart failure, an infection in your heart (endocarditis), and irregular heartbeats (arrhythmias) are all common complications of aortic valve regurgitation that can be delayed if not prevented entirely. Reducing your risk factors for these conditions can help prevent complications. For instance, because both high blood pressure (hypertension) and regurgitation can cause heart failure, if you have both it is especially important to control your blood pressure.

It may be better to have valve replacement surgery before symptoms develop from regurgitation. If the left ventricle becomes significantly enlarged, heart damage can be irreversible. The left ventricle can enlarge even while you are symptom-free. For this reason, visit your doctor regularly for appropriate monitoring.

Living With Aortic Regurgitation

Having aortic valve regurgitation means your heart is working overtime to keep up with your body's needs. So your doctor will probably recommend specific lifestyle changes to decrease your heart's workload.

• If you smoke, try to quit. Medicines and counseling can help you quit for good.
• Your doctor will also recommend that you follow a heart-healthy diet and limit your sodium intake.
• If you do not have symptoms of aortic valve regurgitation and your left ventricle is working well, your doctor may recommend regular, light aerobic exercise, such as walking. But do not start an exercise program on your own without first talking with your doctor. Your doctor may recommend you have tests to see what sort of exercise is safe for you.
• If you are overweight, you may want to try to lose weight to reduce your heart's workload. For more information on losing weight, see the topic Weight Management. The American Heart Association (AHA) publishes dietary guidelines for general heart health.
• Practice good dental hygiene and have regular checkups. Good dental health is especially important, because bacteria can spread from infected teeth and gums to the heart valves.
• Avoid getting sick from the flu. Get a flu shot every year.

If you have an artificial valve, you may need to take antibiotics before you have certain dental or surgical procedures. The antibiotics help prevent an infection in your heart called endocarditis.

People who have had rheumatic fever may need to take antibiotics for 5 to 10 years following the infection, depending on the damage to the heart.

If you have severe aortic valve regurgitation, your doctor will probably recommend that you avoid strenuous physical activity.

If you have chronic aortic regurgitation, you are likely to live for many years without symptoms. During this symptom-free period, you need to monitor the function of the lower left chamber of the heart (left ventricle) with regular doctor visits and echocardiogram tests. How often you need to see your doctor depends on the severity of your condition. Follow-up visits are generally scheduled every 6 to 12 months.

Report any symptoms of chest pain, fainting, and shortness of breath to your doctor immediately. These are signs that you are likely to need surgery.

Medications

Treatment for chronic aortic valve regurgitation includes medicines to reduce blood pressure. If you have valve replacement surgery, you will need to take medicines to prevent infection and blood clots around the artificial valve.

If your regurgitation is moderate to severe, your doctor may prescribe a high blood pressure medicine. These medicines include the calcium channel blocker nifedipine, an angiotensin-converting enzyme (ACE) inhibitor or an angiotensin II receptor blocker (ARB), or the vasodilator hydralazine.

If aortic valve regurgitation causes chest pain, medicines called nitrates (nitroglycerin) can sometimes be tried to help relieve the pain. Antiarrhythmic medicines may be needed if the regurgitation leads to irregular heart rhythms (arrhythmias). If aortic valve regurgitation causes heart failure, medicines are often used to help the heart pump more effectively. These include digoxin and diuretics.

If your valve is replaced with an artificial heart valve made of plastic, metal, or cloth, you will have to take anticoagulant medicine, such as warfarin (Coumadin), for the rest of your life to prevent blood clots.

When you take warfarin, you need to take extra steps to avoid bleeding problems. You need to:

• Get regular blood tests.
• Prevent falls and injuries.
• Eat a steady diet, and pay attention to foods that contain vitamin K.
• Tell your doctors about all other medicines and vitamins that you take.

For more information, see:

Warfarin: Taking your medicine safely.

If you have an artificial valve, you may need to take antibiotics before you have certain dental or surgical procedures. The antibiotics help prevent an infection in your heart called endocarditis.

People who have had rheumatic fever may need to take antibiotics for 5 to 10 years after the infection, depending on the damage to the heart.

Surgery

Valve replacement surgery is the only cure for sudden (acute) aortic valve regurgitation or for long-term (chronic) regurgitation when symptoms develop or signs show that the lower left heart chamber (left ventricle) is starting to fail.

The American College of Cardiology/American Heart Association (ACC/AHA) guidelines recommend having aortic valve replacement surgery if you have severe regurgitation and one of the following conditions:¹

• You have symptoms.
• Your ejection fraction drops below 50% at rest.
• Your left ventricle enlarges to more than 55 millimeters at rest.
• You are going to have another open-heart surgery such as coronary artery bypass graft surgery.

Your doctor may recommend that you have surgery even if you do not have symptoms, because symptoms typically only occur after the condition has progressed to the point that it has already damaged the heart.

If you choose to have aortic valve replacement surgery, you can expect to live to a normal or near-normal life expectancy. There are some risks associated with surgery. But the risk of dying during surgery overall is still reasonably low (5% or less).¹ You may be at higher risk for complications if your left ventricle is working poorly. Surgery may not be recommended in some people who are in extremely poor health.

If you have valve replacement surgery, a mechanical or tissue valve will be used to replace your heart valve. Before you have surgery, you and your doctor will decide on which type of valve is right for you. To help with this decision, see:

Heart valve problems: Should I choose a mechanical valve or tissue valve to replace my heart valve?