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Understanding Mitral Valve Regurgitation: Symptoms, Causes, and Treatment Options

Alan Lucks | MD

Medically reviewed by Alan Lucks | MD, Alan Lucks MDPC Private Practice - New York on July 2nd, 2023.

Key Takeaways

  • The mitral valve sits between the left atrium and left ventricle, and when it fails to seal completely, up to 50% of blood can leak backward instead of flowing to the body.

  • Symptoms typically don't appear until the condition is moderate to severe, which can take 10-20 years to develop—explaining why many cases go undetected during routine checkups.

  • Rheumatic fever from untreated strep throat remains the leading cause worldwide, while mitral valve prolapse affects 2-3% of the population and is more common in women.

  • Surgical repair is preferred over replacement when possible, with repair success rates above 95% at experienced centers and lower long-term complications than artificial valves.

  • ACE inhibitors like lisinopril (starting at 2.5-5mg daily) can reduce the workload on the heart, while severe cases may require diuretics to manage fluid buildup.

Mitral valve regurgitation is a heart condition where the mitral valve doesn't close properly, causing blood to flow backward in the heart. This can lead to symptoms like fatigue, shortness of breath, and chest pain. In this article, we'll explain what mitral valve regurgitation is, its symptoms, causes, risk factors, and treatment options.

What Is Mitral Valve Regurgitation?

Mitral valve regurgitation occurs when the mitral valve, which separates the left atrium and left ventricle of the heart, doesn't close tightly. This allows blood to leak backward into the left atrium instead of flowing forward to the rest of the body. Over time, this can cause the heart to work harder and lead to complications like heart failure.

Understanding Mitral Valve Regurgitation: Symptoms, Causes, and Treatment Options

Symptoms of Mitral Valve Regurgitation

Symptoms of mitral valve regurgitation may include:

  • Fatigue

  • Shortness of breath, especially with activity

  • Chest pain

  • Heart palpitations

  • Swelling in the feet and ankles

In some cases, people with mitral valve regurgitation may not experience any symptoms. However, if left untreated, the condition can worsen and lead to serious complications.

Causes and Risk Factors of Mitral Valve Regurgitation

Mitral valve regurgitation can be caused by several factors, including:

  • Mitral valve prolapse

  • Rheumatic heart disease

  • Heart attack

  • Congenital heart defects

  • Cardiomyopathy

  • Endocarditis

Risk factors for mitral valve regurgitation include:

  • Age over 65

  • Family history of heart valve disorders

  • Lifestyle factors like smoking and obesity

  • Certain medical conditions like high blood pressure and diabetes

Diagnosing Mitral Valve Regurgitation

To diagnose mitral valve regurgitation, your doctor will listen to your heart with a stethoscope. If they hear a heart murmur, they may recommend additional tests, such as:

  • Echocardiogram

  • Electrocardiogram (ECG or EKG)

  • Chest X-ray

  • Cardiac MRI

  • Exercise stress test

These tests can help your doctor determine the severity of your condition and develop an appropriate treatment plan.

Treatment Options for Mitral Valve Regurgitation

Treatment for mitral valve regurgitation depends on the severity of the condition. In mild cases, treatment may not be necessary. However, if the condition is more severe, treatment options may include:

  • Medications to manage symptoms and prevent complications

  • Mitral valve repair surgery to fix the damaged valve

  • Mitral valve replacement surgery to replace the damaged valve with an artificial one

Your doctor will work with you to determine the best treatment plan based on your individual needs and medical history.

Living with Mitral Valve Regurgitation

If you have mitral valve regurgitation, there are several things you can do to manage your condition and improve your quality of life:

  • Follow your treatment plan and attend all scheduled appointments with your doctor

  • Eat a heart-healthy diet low in salt, sugar, and saturated fat

  • Exercise regularly as recommended by your doctor

  • Manage stress through relaxation techniques, meditation, or therapy

  • Quit smoking and avoid secondhand smoke

Joining a support group for people with heart valve disorders can also be helpful in managing the emotional aspects of living with mitral valve regurgitation.

If you suspect you may have mitral valve regurgitation, don't hesitate to speak with your doctor. With proper diagnosis and treatment, many people with this condition are able to live full, active lives.

The Bottom Line

Early detection through echocardiogram is crucial since symptoms often don't appear until significant heart damage has occurred. Surgical repair offers excellent outcomes when performed before the heart muscle weakens permanently. If you're experiencing unexplained fatigue or shortness of breath during normal activities, Doctronic can help you understand whether cardiac evaluation is needed.

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