Let's learn more about the Mitral Valve in your heart.

Have you ever wondered what goes on inside your heart and how it works? It's really a wonderfully designed, constantly working thing, isn't it? Our heart has four parts that act like little doors. These are what we call 'valves'. These valves are what keep the blood flowing in one direction. One of those valves is the Mitral Valve , which is very important. Let's talk about this in a little more detail, but simply, shall we?

What is the Mitral Valve? What does it actually do?

Simply put, the mitral valve is one of the four main valves in your heart. Think of your heart as a small house with four rooms. Two rooms upstairs and two rooms downstairs. The mitral valve is located between the upper chamber on the left side of the heart (which we call the Left Atrium) and the lower chamber on the left side (which we call the Left Ventricle).

So, the main function of this valve is to open the door for clean, oxygenated blood to flow from the left atrium to the left ventricle. Then, it closes the door so that that blood doesn't flow back up, that is, into the left atrium. It's like a one-way door. This is very important, because the left ventricle is the one that pumps this oxygenated blood throughout the body. That's when every tissue, every cell in our body gets oxygen and nutrients.

We don't usually think about this mitral valve much, do we, until something goes wrong with it? But it's good to know, if there is a problem with this valve, there are advanced medical methods today to treat it. You know, the sound of the heart beating, "thump thump," is the sound of this valve opening and closing.

Where exactly is the Mitral Valve located?

As I mentioned before, this is on the left side of your heart. To be precise, the mitral valve is located between the small chamber at the top of the left side of the heart, called the Left Atrium , and the slightly larger chamber directly below it, the left ventricle , which is the heart's main pump. It is sometimes called the Left Atrioventricular Valve.

What are the parts of the Mitral Valve? How does it look?

The mitral valve is made up of two leaflets made of very delicate but strong tissue. Like two door leaves. One is located in front (anterior leaflet) and the other is located in back (posterior leaflet). These two leaflets open and close every time the heart beats.

These valves are connected to the papillary muscles in the left ventricle by a system of thin, strong cords, like the cords of a parachute. These cords are called chordae tendineae . Think of them like the threads of a toothbrush. These papillary muscles and chordae tendineae work together to make the valve leaflets move properly.

In addition, these two leaflets are attached to a D-shaped ring called the mitral annulus . This annulus is like a junction that connects the tissue of the left atrium to the tissue of the left ventricle. The zone of coaptation, where the two leaflets touch each other when they close, is very important for the valve to function properly.

In general, the mitral valve looks like a parachute . When the two flaps come together, it looks like the lips you see when you close your mouth and smile. This valve is usually about the size of a small paper clip.

What are the common diseases that affect the Mitral Valve?

If our mitral valve is not working properly, the heart has to work harder to pump enough blood to the body. This can be due to several reasons:

• Deterioration with aging: Like anything else, this cut can deteriorate over time.
• Birth defects: Some people may be born with some kind of valve abnormality.
• Damage to the valve or surrounding tissue: For example, it can be caused by a heart attack.
• Infections and inflammatory conditions of the heart muscle: Conditions such as `endocarditis` (an infection of the inner lining of the heart) or `rheumatic fever`.
• Connective tissue diseases: Diseases such as Marfan Syndrome that affect the body's connective tissues.
• Receiving radiation therapy to the chest for cancer treatment during childhood.

These reasons can lead to various problems with the mitral valve. Let's see what the main ones are:

1. Mitral Valve Prolapse

What happens in this case is that the valve leaflets do not close properly and protrude backward into the left atrium. This prevents the valve from closing properly. Over time, this can cause blood to leak backward (regurgitation).

2. Mitral Valve Regurgitation

In this condition, the valve does not close properly, causing blood to leak in the wrong direction, from the left ventricle back into the left atrium . Doctors classify this as primary or secondary depending on the cause. Treatment options may vary accordingly.

3. Mitral Valve Stenosis

This is when the valve becomes narrow or stiff . The valve then does not open properly. As a result, not enough blood passes through the valve and circulates throughout the body.

4. Double-orifice Mitral Valve

This is a problem with the structure of the valve itself. Instead of a single opening in the valve , two or more openings develop. Usually, one of these openings becomes narrow (stenotic) or leaky (leaky).

What are the symptoms of mitral valve problems?

In most cases, there may be no symptoms at first , even if there is a problem with the mitral valve. You may not notice any changes for years. But over time, this condition can gradually worsen. Then, as you get older, symptoms begin to appear. Let's see what those symptoms are:

• Heart Murmur: This can be heard by a doctor during a heart exam with a stethoscope. It is often the first sign of valve disease.
• Dizziness.
• Fainting.
• Fatigue: Not just tiredness, but a feeling of extreme fatigue.
• Chest pain.
• Heart Palpitations: A feeling as if the heart is racing or beating rapidly in the chest.
• Dyspnea: Difficulty breathing, especially when you are tired, doing heavy work, or when you are lying down.

Remember, if you have one or more of these symptoms, you should definitely see a doctor . It's important to recognize them before they become serious.

What could happen if these conditions become serious?

If mitral valve disease is not managed properly, serious, life-threatening conditions can develop. For example:

• Irregular heartbeat (Arrhythmia).
• Fluid buildup in your lungs.
• Heart failure.
• Pulmonary Hypertension: This means increased blood pressure in the lungs.
• Stroke.
• Sudden cardiac arrest/cardiac arrest.

It is because of these serious complications that it is recommended that if you have symptoms of mitral valve disease, you seek medical advice as soon as possible .

What tests are performed to check the health of the mitral valve?

Doctors do various tests to find out how your mitral valve is working and if there are any problems with it. Some of them include:

• Auscultation: This is the most basic test.
• Echocardiogram: This is like an ultrasound scan of the heart. It can look at things like the function and shape of the valves.
• Electrocardiogram (EKG/ECG): A test that measures the electrical activity of the heart.
• Heart MRI (Magnetic Resonance Imaging): Detailed images of the heart can be obtained.
• Exercise Stress Test: This tests how your heart responds when you exercise.
• Chest X-ray.
• CT scan (Computed Tomography - CT scan).
• Cardiac Catheterization: This involves passing a small tube (catheter) through a blood vessel into the heart to examine it.

What are the treatments for mitral valve disease?

Treatment depends on the type of mitral valve problem and its severity. Here are some common treatments:

• Medications: For example, diuretics (medicines to remove excess fluid from the body) or antihypertensives (medicines to control blood pressure) may be prescribed.
• Mitral Valve Commissurotomy: This is done for people with stenosis. It is a surgery to open the narrowed valve.
• Mitral Valve Repair: Whenever possible, doctors try to repair your own valve.
• Mitral Valve Replacement: If the valve cannot be repaired, an artificial valve is implanted instead.

How do we keep our heart valves healthy?

Sometimes we may not be able to prevent mitral valve problems from developing, especially if they are congenital. However, there are many things we can do to keep our hearts healthy in general. These things can help reduce the risk of developing valve disease:

• Avoid smoking and using tobacco products completely.
• Limit your use of caffeine and alcohol, or stop if possible.
• Manage stress. Things like yoga and meditation can help.
• Keep your teeth and skin clean. This can help prevent infections from entering.
• Control blood pressure and cholesterol levels.
• Eat a heart-healthy diet low in saturated and trans fats. Eat more vegetables, fruits, legumes, and whole grains.
• Be physically active most days of the week. Do something like walking, running, or swimming.

When should you seek medical advice?

If you have been diagnosed with mitral valve disease, it is very important to have regular medical check-ups . Your family doctor or a cardiologist will monitor you. Then, if any complications arise, they can be identified quickly and treatment can begin. It is also very important to take the medication prescribed by the doctor exactly and on time .

Remember, if your mitral valve is not working properly, your heart has to work harder. This can cause symptoms. But the good news is that with today's advanced medical science, there are many treatments that can help control these symptoms, prevent complications, or delay them. Some treatments may be less invasive than you think. So, take charge of your health and talk to your doctor about your options.

Take-Home Message

• The mitral valve is an important valve on the left side of the heart that helps blood flow in one direction.
• Various factors, such as age, birth defects, and infections, can cause problems with this.
• If you experience symptoms such as difficulty breathing, chest pain, or extreme fatigue, seek medical advice immediately.
• Mitral valve disease can be managed with proper treatment and healthy lifestyle changes.
• Take care of your heart and get regular medical checkups.

I hope you find this information useful. Stay healthy!

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