What is mitral valve regurgitation?

Mitral Valve Regurgitation

What is mitral valve regurgitation?

Mitral valve regurgitation is a problem that happens when the mitral valve does not close tightly enough. The closed valve lets blood leak (regurgitate) from the lower chamber of the heart back into the upper chamber. Your heart has to work harder to pump this extra blood.

Primary mitral regurgitation happens when there is a problem with the shape of the valve. The shape is not normal.

Secondary regurgitation happens when another heart problem affects the heart muscle, typically in the lower left chamber of the heart. Changes in the heart muscle cause the valve to not close tightly. The shape of the valve is typically normal.

Small leaks usually aren't a problem. But if the leak becomes severe over time, it may lead to heart failure.

The regurgitation usually develops over time (chronic mitral regurgitation). But sometimes it happens suddenly (acute mitral regurgitation). This is an emergency.

What are the symptoms of mitral valve regurgitation?

Symptoms of chronic mitral valve regurgitation may take decades to appear. They include being tired or short of breath when you are active.

Because you may not have symptoms, a specific type of heart murmur might be the first sign your doctor notices.

If you develop heart failure, you may have other symptoms. They include:

  • Shortness of breath with activity. This can later develop into shortness of breath at rest and at night.
  • Tiredness and weakness.
  • A buildup of fluid in the legs and feet. This buildup is called edema.

Acute mitral valve regurgitation is an emergency. Symptoms come on quickly. They include severe shortness of breath, fast heart rate, lightheadedness, weakness, confusion, and chest pain.

How is mitral valve regurgitation diagnosed?

When your doctor suspects that you have mitral valve regurgitation, you will be asked about your past health and have a physical exam.

To diagnose the problem and check your heart, you'll likely have an echocardiogram.

Your doctor may also order tests to check your heart. These tests may include an electrocardiogram, MRI, and cardiac catheterization.

How is mitral valve regurgitation treated?

Treatment for chronic mitral valve regurgitation includes regular tests to check how well the valve and the heart are working. You may take medicine to treat problems caused by the regurgitation. Or you may take medicine to treat a heart problem that's causing it. Your doctor will likely recommend a heart-healthy lifestyle.

If your condition becomes severe, you may choose to have the valve repaired or replaced. You and your doctor can talk about a few things to decide. These things include the cause of the regurgitation, the anatomy of the valve, if you have symptoms, how well your heart is pumping blood, and your feelings about having surgery or a procedure.

Treatment for acute mitral valve regurgitation occurs while you are in the hospital or the emergency room. You need surgery right away to repair or replace the valve.

How can you care for yourself when you have mitral valve regurgitation?

  • Be safe with medicines. Take your medicines exactly as prescribed. Call your doctor if you think you are having a problem with your medicine. You will get more details on the specific medicines your doctor prescribes.
  • Call your doctor if you have new symptoms or your symptoms get worse.
  • Eat heart-healthy foods. These include vegetables, fruits, nuts, beans, lean meat, fish, and whole grains. Limit sodium, sugar, and alcohol.
  • Be active. Ask your doctor what type and level of exercise is safe for you. Let your doctor know if your ability to exercise changes.
  • Do not smoke. If you need help quitting, talk to your doctor about stop-smoking programs and medicines. These can increase your chances of quitting for good.
  • Stay at a healthy weight. Lose weight if you need to.
  • Manage other health problems. If you think you may have a problem with alcohol or drug use, talk to your doctor.
  • Avoid infections such as COVID-19, colds, and the flu. Get the flu vaccine every year. Get a pneumococcal vaccine. If you have had one before, ask your doctor whether you need another dose. Stay up to date on your COVID-19 vaccines.
  • Take care of your teeth and gums. Get regular dental checkups. Good dental health is important because bacteria can spread from infected teeth and gums to the heart valves.

Mitral valve regurgitation: When to call

Call 911 anytime you think you may need emergency care. For example, call if:

  • You have severe trouble breathing.
  • You cough up pink, foamy mucus.
  • You have symptoms of a heart attack. These may include:
    • Chest pain or pressure, or a strange feeling in the chest.
    • Sweating.
    • Shortness of breath.
    • Nausea or vomiting.
    • Pain, pressure, or a strange feeling in the back, neck, jaw, or upper belly or in one or both shoulders or arms.
    • Lightheadedness or sudden weakness.
    • A fast or irregular heartbeat.
    After you call 911, the operator may tell you to chew 1 adult-strength or 2 to 4 low-dose aspirin. Wait for an ambulance. Do not try to drive yourself.

Call your doctor now or seek immediate medical care if:

  • You have new symptoms or your symptoms get worse.
  • You have new or increased shortness of breath.
  • You are dizzy or lightheaded, or you feel like you may faint.
  • You have sudden weight gain, such as more than 2 to 3 pounds in a day or 5 pounds in a week. (Your doctor may suggest a different range of weight gain.)
  • You have new or increased swelling in your legs, ankles, or feet.
  • You are suddenly so tired or weak that you cannot do your usual activities.

Watch closely for changes in your health, and be sure to contact your doctor if you develop new symptoms.

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The content above contains general health information provided by Healthwise, Incorporated, and reviewed by its medical experts. This content should not replace the advice of your healthcare provider. Not all treatments or services described are offered as services by us. For recommended treatments, please consult your healthcare provider.

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