Understanding Bicuspid Aortic Valve

Human life depends on the heart, making it one of the most important organs in the body. Known to be the size of one’s fist, this organ acts as a pump that helps in circulating blood and oxygen to different parts of the body. However, some people are born with heart defects. This is known as a congenital heart defect or heart condition. 

There are various types of defects a heart might have; one of them is a bicuspid aortic valve (BAV). In this condition, the aortic valve does not have its normal structure, causing trouble in the function of the heart. If not treated in time, it can cause danger to one’s life. Thus, it is important to understand what it is, detect its early signs, learn its causes and treatment options.  

What is a Bicuspid Aortic Valve? 

BAV (bicuspid aortic valve) heart disease is a condition that is present at birth. In this condition, patients have only two out of three flaps or cusps in the aortic valve. This causes trouble in the closing and opening of the valve. 

These flaps, sometimes called leaflets, open and shut to regulate the blood flow between the heart and the aorta. It ensures oxygen-rich blood flows out of the heart and into the aorta. It also ensures the blood does not flow backwards into the heart. Thus, it is very important for these flaps to open widely and close tightly when needed. 

If this opening and closing of flaps does not happen the right way, one may suffer from more health issues. While two flaps may still do the job, having three flaps is more effective. People with BAV have a heart that is forced to work harder, which can lead to serious health complications. 

What are the Symptoms of a Bicuspid Aortic Valve?

The following is how you can detect this condition:

Symptoms in Babies

In infants, this condition may show early signs that affect breathing, feeding, and overall growth.

• Pale or bluish skin (cyanosis)
• Difficulty feeding or tiring quickly during feeds
• Poor weight gain or slow growth
• Rapid breathing
• Sweating during feeding
• Unusual fussiness or irritability

Symptoms in Adults

In adults, symptoms often develop gradually and may worsen over time, affecting daily activities.

• Persistent fatigue, even after mild activity
• Chest pain or a feeling of tightness
• Shortness of breath, especially during exertion
• Dizziness or light-headedness
• Fainting spells
• Irregular heartbeats (palpitations)

Causes of Bicuspid Aortic Valve

The bicuspid aortic valve develops during foetal heart formation before birth. The exact cause of this condition is not yet known to healthcare professionals. However, genetic factors and family history may play a role. It could be a condition of a close relative as well. Thus, if you notice or know about such a condition in the family, it is always wise to have it checked as quickly as possible.

What Complications Do People with a Bicuspid Aortic Valve Have?

If proper treatment is not given to people with BAV, it could lead to serious health issues, such as:

1. Heart Failure

   If a person develops aortic valve stenosis, it could force their heart to work harder. Pushing blood through the valve becomes difficult, and the main pumping chamber of the heart (known as the left ventricle) gets thick and big. As a result, the heart may struggle to pump blood effectively and over time, it could cause heart failure. People who smoke or have high cholesterol are at a higher risk of this, as it can speed up the process. 

2. Aortic Aneurysm Rupture and Dissection. 

   People who have a bicuspid aortic valve are also at higher risk of having an enlarged aorta above their valve. And when this part of the heart gets bigger, the walls begin to lose their strength. It also stretches out of shape. Thus, it can cause an aortic aneurysm, otherwise known as bulging of the aorta. If this bulging of the aorta gets too big, it can rupture or dissect. This, in turn, causes danger to life; hence, it's known as a life-threatening emergency.

3. Aortic Stenosis

   Aortic stenosis occurs when the aortic valve becomes stiff and narrowed, restricting the flow of blood from the heart to the rest of the body. This makes the heart work harder to pump blood, which can lead to thickening of the heart muscle over time. As the condition progresses, it may cause symptoms such as chest pain, fatigue, dizziness, or fainting. If left untreated, severe cases can increase the risk of heart failure and other serious complications.

4. Aortic Regurgitation

   Aortic regurgitation happens when the aortic valve does not close properly, allowing blood to flow back into the heart instead of moving forward. This backflow increases the volume of blood the heart must handle, causing it to work harder and potentially enlarge over time. People with this condition may experience fatigue, shortness of breath, or palpitations. In more advanced stages, it can reduce the heart’s efficiency and may require medical treatment or surgery.

5. Infective Endocarditis

   This is an infection of the inner lining of the heart or its valves, which people with this condition are more prone to developing. It usually occurs when bacteria enter the bloodstream and attach to damaged areas of the heart. Symptoms may include fever, fatigue, and unexplained weight loss. If not treated promptly, it can damage the heart valves and lead to serious complications, making early diagnosis and treatment essential.

    

Diagnosis for Bicuspid Aortic Valve

This condition may be identified at different stages of life, depending on when signs are noticed or tests are performed.

• Before birth: It may sometimes be detected through a prenatal heart ultrasound scan.
• During childhood: It can be diagnosed when symptoms linked to other heart issues appear, leading to further evaluation.
• During routine check-ups: Doctors may suspect it after hearing an unusual heart sound (murmur).
• Further testing: If a murmur is detected, imaging tests are carried out to assess the heart’s structure and function.

How is the Bicuspid Aortic Valve Treated?

The treatment for this heart condition can vary from person to person. The following is a deeper dive into how it is treated:

Medication for BAV

There’s no particular medicine to cure this condition. However, your doctor may prescribe you a few pills to help treat the symptoms of BAV. 

Surgery for BAV

Surgery may be required if BAV leads to serious issues such as valve narrowing, leakage, or an enlarged aorta. In such cases, doctors try to repair or replace the affected valve or aorta. This is done in the following ways:

1. Aortic Valve Replacement

The damaged valve is removed and replaced with either a mechanical valve or a biological (tissue) valve. Tissue valves may wear out over time and need replacement, while mechanical valves usually last longer but require lifelong blood-thinning medication. In some cases, a complex procedure called the Ross procedure may be performed.

2. Aortic Root and Ascending Aorta Surgery

If the aorta is enlarged, the affected portion is removed and replaced with a synthetic tube (graft). Depending on the condition, the aortic valve may also be repaired or replaced during the procedure.

3. Balloon Valvuloplasty

This is a less invasive procedure mainly used in children or in adults who are not fit for surgery. A catheter with a balloon is guided to the valve and inflated to widen the narrowed opening. However, the effect may be temporary in adults.

People with BAV are usually treated by a cardiologist who specialises in congenital heart conditions; they are known as a congenital cardiologist. These doctors will personalise your treatment plan based on the severity of your condition.  

Conclusion

A Bicuspid Aortic Valve is a lifelong heart condition that requires ongoing care. Individuals with this condition are usually advised to undergo regular check-ups and seek medical attention when needed. Over time, the cost of consultations, tests, and treatments can add up and become difficult to manage.

To ease this financial burden and ensure continued access to quality healthcare, it is important to plan ahead. One way to do this is by opting for a reliable health insurance plan. For NRIs, Niva Bupa’s NRI health insurance plans can be a suitable option, helping to cover medical expenses and ensuring that family members receive timely care without added financial stress. 

FAQs

1. Can a bicuspid aortic valve be prevented?

No, one cannot prevent BAV condition as it is something people are born with. However, adopting certain lifestyle changes can help you avoid bigger heart-related concerns. 

2. What complications may one face after bicuspid aortic valve treatment?

People who have undergone treatment for BAV have a low risk of facing complications. However, some possible risks include infection, bleeding, blood clots, heart attacks, stroke, arrhythmia and reduced kidney function. Always be sure to talk to your doctor and follow up with checkups post-treatment. 

3. How long can one live with a BAV?

People with a bicuspid aortic valve have a normal life expectancy. However, they must keep checking with their doctor to ensure there are no rising health concerns, especially related to the heart. 

4. Is BAV a serious health concern?

Yes, it is. If this condition is not treated and a checkup is not performed on time, it can cause heart failure or an aortic aneurysm. Therefore, regular monitoring and medical care are important.

5. Which tests are conducted to diagnose a bicuspid aortic valve?

A doctor will conduct tests such as an echocardiogram, CT (computed tomography) scans, and a heart MRI (magnetic resonance imaging). In some cases, they might also ask you to undergo genetic testing.

6. Which exercise is suitable for people with a Bicuspid Aortic Valve?

Swimming is often a good option for individuals with this condition. It is a low-impact activity that helps improve endurance and supports overall heart health. Like other aerobic exercises, it can be done around 3 to 5 times a week, based on a doctor’s advice.