Do you sometimes feel tired? Do you find it hard to breathe when you climb a flight of stairs? Or are you a little skeptical about your little one's development? There can be a number of reasons for these things. But sometimes the cause of this can be a small change in the heart that we are born with. Today we are going to talk about such a condition, related to the blood circulation in the heart, but not very common. This is called PAPVR, which stands for (Partial Anomalous Pulmonary Venous Return).
Do you know what PAPVR (Partial Anomalous Pulmonary Venous Return) is?
Simply put, PAPVR is a congenital heart disease . What happens in this is that there is a slight problem with the way that the purified, oxygenated blood from our lungs returns to the heart. Normally, all this oxygenated blood goes to the left side of the heart. Then, the left side of the heart pumps that blood to the whole body.
But in someone with PAPVR, only a little of this oxygenated blood coming from the lungs goes to the right side of the heart . You know, the right side of the heart normally receives blood that has been used up by the body, which is low in oxygen. So when some of the oxygenated blood goes the wrong way, the amount of blood coming to the right side of the heart just increases. What happens then? The right side of the heart has to work with this extra blood, which means it has to work harder . This extra load can build up on the heart over time, and it can even affect our overall health.
But PAPVR does not affect everyone the same way. It depends on the amount of blood that is diverted. Some people may have a very mild condition, and may not experience any symptoms for the rest of their lives. But if symptoms do occur or other complications arise, our doctors can manage the condition well. In most cases, surgery can successfully treat PAPVR and help you live a long, healthy life.
This is the normal way blood flows in our heart, and how it changes when we have PAPVR.
To understand the impact of PAPVR on blood flow, let's first look at how blood normally flows between our heart and lungs. Think of it like a little journey.
1. First, the body's used, oxygen-depleted blood flows through two large veins (the superior vena cava and the inferior vena cava) and into the upper chamber (the right atrium) on the right side of the heart.
2. Then, this oxygen-poor blood moves from the upper right chamber to the lower right chamber (`(right ventricle)`).
3. This blood is pumped from the lower right chamber to the lungs , which is helped by the pulmonary arteries. In the lungs, this blood is re-oxygenated, as if it has been given a new lease of life.
4. The new, oxygenated blood now returns to the heart through several veins (`(pulmonary veins)`) from the lungs, directly into the upper chamber (`(left atrium)`) on the left side of the heart.
5. This oxygen-rich blood from the upper chamber on the left goes to the lower chamber on the left (`(left ventricle)`).
6. Finally, this oxygen-rich blood from the lower chamber on the left side is distributed throughout the body through the largest blood vessel (the aorta).
You see, normally the blood with less oxygen is in the chambers on the right, and the blood with more oxygen is in the chambers on the left. They don't get mixed up.
But with PAPVR, this method doesn't work properly. PAPVR causes an abnormal blood flow pattern within the heart, called a left-to-right cardiac shunt. "Partially anomalous" means that only a portion of the oxygenated blood from the lungs does not reach the heart normally.
This is because one or more of your pulmonary veins are pumping oxygenated blood into the upper chamber on the right side, instead of into the upper chamber on the left side. What happens then? The oxygen-poor blood in your upper chamber on the right side is mixed with the oxygen-rich blood. So, this mixed blood is pumped into the lower chamber on the right side, into the lungs.
This has two side effects:
- The first is that some of the oxygen-rich blood unnecessarily returns the same way it came, that is, to the lungs.
- Second, the amount of blood your right lower chamber has to pump to your lungs increases . This extra work can put a strain on your heart over time.
Can other heart diseases occur with PAPVR?
Some people may have PAPVR alone, without any other heart disease. This is called "isolated PAPVR". However, many people with PAPVR may also have other abnormalities, such as a hole between the two upper chambers of the heart . This is called an Atrial Septal Defect (ASD).
Very rarely, PAPVR can be associated with a malformation of the right lung and the vein that carries blood to the lung (`(Scimitar syndrome)`).
How rare is PAPVR?
Researchers estimate that approximately 4 to 7 out of every 1,000 people have PAPVR. However, the number could be much higher, as some people may never experience any symptoms and may never be diagnosed with the condition.
What are the symptoms of PAPVR?
If the amount of blood going to the wrong side (called `shunting`) is low, PAPVR does not always cause symptoms. However, when this `shunting` increases, you may notice symptoms. Young children may have symptoms if they have the condition along with other heart conditions. However, most people with PAPVR begin to develop symptoms in their 20s or 30s .
Symptoms in young children:
- Developmental delays.
- Getting tired quickly while exercising or playing.
- Frequent respiratory infections (e.g., chest congestion).
- Shortness of breath.
- Difficulty gaining weight.
Symptoms in adults:
- Difficulty breathing.
- Feeling tired all the time (`(Fatigue)`).
- Feeling an abnormal heart rate (`(Heart palpitations)`).
- Chest pain (`(Chest pain)`).
- Heart rate increases.
- Frequent respiratory infections.
Why does this PAPVR occur?
Like other congenital heart diseases, PAPVR occurs when the heart does not form properly during fetal development . Normally, during the first few weeks of pregnancy, four pulmonary veins form from a common pulmonary vein. These veins connect to the left upper chamber of the fetal heart. However, if there are any changes in this process, the pulmonary vein can connect to the right upper chamber instead of the left upper chamber, or to other nearby veins (such as the superior vena cava or left brachiocephalic vein). This is when PAPVR occurs.
What are the possible complications of PAPVR?
Left-to-right shunts that have been left untreated for a long time can reverse and lead to a serious condition called Eisenmenger syndrome. Therefore, it is important to seek medical advice immediately if you have symptoms.
How do you know if you have PAPVR?
Doctors diagnose PAPVR with a physical exam and other special tests . While examining you, your doctor will listen to your heart with a stethoscope. Some people with PAPVR may hear an abnormal heart sound (a heart murmur). If this is suspected, your doctor will order further tests.
The age at which PAPVR is diagnosed varies from person to person. It can be diagnosed in infancy, or it can be diagnosed in late adulthood. You can have PAPVR, but not have any symptoms, so you may not know it for a lifetime. Sometimes, the condition is discovered incidentally during a test done for something else.
What tests are performed?
Tests that help diagnose PAPVR are:
- Echocardiogram (Echocardiogram) - specifically a transesophageal echocardiogram (TEE). This takes an ultrasound picture of the heart.
- Heart MRI (Heart MRI).
- Cardiac computed tomography (CT) scan.
Does PAPVR require surgery?
Some children and adults need to have PAPVR repair surgery to correct the path of blood flow through the heart. Children who are diagnosed with PAPVR are more likely to need surgery than adults. This is because they often have PAPVR along with other heart conditions that require surgery.
Doctors recommend surgery only if it is absolutely necessary to relieve symptoms or prevent future complications . You or your child may need surgery if PAPVR causes significant left-to-right shunting. This means that a significant amount of blood that should be going to the body is going back to the right side of the heart and lungs. This can cause uncomfortable symptoms and complications such as high blood pressure in the lungs (pulmonary hypertension - PAH) or heart failure. Your doctor will use imaging tests to determine the extent of this shunting.
Surgery can often successfully treat PAPVR. It is important to talk to your doctor about the details of your surgery and what to expect.
The surgical technique may vary depending on the shape of your heart and pulmonary veins. In general, surgeons aim to reroute blood flow so that oxygenated blood flows into the left chambers of the heart.
However, most people will not need surgery . If your PAPVR is mild, your doctor will monitor your condition. If you develop symptoms or show signs of complications, your doctor may recommend surgery at that time.
Can PAPVR be prevented?
Unfortunately, there's no way to prevent PAPVR. It's something we're born with. However, if you're planning to get pregnant, talk to your doctor about ways to reduce your risk of having a baby with a congenital heart defect. Here are some tips:
- Completely avoid alcohol, drugs, tobacco products, and secondhand smoke.
- Attend all prenatal appointments with your doctor.
- Work with your doctor to manage any other underlying health conditions you may have (e.g., diabetes, high blood pressure).
Can someone with PAPVR live a normal life?
It is entirely possible to live a long, healthy life with PAPVR. Many people live for years without any symptoms or complications. Even those who need surgery usually have good results. However, results can vary depending on other heart disease or underlying conditions a person has. So it is best to talk to your doctor about what to expect based on your individual situation.
If you have PAPVR, how do you take care of yourself? / How do you take care of your child?
Living with a congenital heart condition can be stressful at times. It's important to remember to take things one day at a time. Here are some general tips you can follow:
- Seek treatment from a cardiologist who specializes in adult congenital heart disease. He or she will monitor your condition through regular checkups and testing.
- Ask your doctor what types of exercise are right for you. Together, you can create an exercise plan.
- Follow a heart-healthy diet (e.g., the Mediterranean Diet).
- Take all medications exactly as prescribed by your doctor.
- Avoid smoking and all tobacco products. Ask your doctor if you need help quitting smoking.
If your child has PAPVR, ask his doctor how to best care for him. Your child may need to follow special guidelines for exercise or other activities, especially if he also has other congenital heart conditions.
When do you need to see a doctor?
See your doctor on the schedule recommended by him. Regular follow-up appointments and imaging tests are important to monitor the status of PAPVR and manage complications.
Call your doctor immediately if you or your child experience any of the following:
- If new symptoms appear or existing symptoms change.
- If there are side effects from the medication.
- If you have any questions or concerns.
In what situations do you need to go to the Emergency Treatment Unit (ETU) ?
If you or your child shows any of these symptoms, call 911 or your local emergency number immediately:
- Heart rate that is too fast (100-150 beats per minute) and does not slow down.
- Loss of consciousness and fainting.
- Excessive shortness of breath in relation to exercise and/or not relieved by rest.
- Sudden and severe chest pain.
- A sudden and severe headache.
- Sudden weakness or numbness in the arms or legs.
Important questions to ask your doctor
Talk to your doctor about your condition and what to expect in the future. Here are some questions you can ask:
If you have PAPVR:
- How serious is my condition?
- What lifestyle changes do I need to make?
- Will I need surgery?
- What are the benefits and risks of surgery?
- What will my future be like?
If your child has PAPVR, ask their doctor:
- How serious is my child's condition?
- Does my child have any other congenital heart diseases?
- Will my child need surgery or other treatment?
- How can I take care of my child at home?
- Does he have any activity restrictions?
- What resources are available to help my child understand this in an age-appropriate way?
What is the difference between PAPVR and TAPVR?
PAPVR is different from a condition called ``Total Anomalous Pulmonary Venous Return (TAPVR)``. In a person with TAPVR, all of the veins in the lungs are connected to the heart in an abnormal way. TAPVR is a more serious condition than most forms of PAPVR, and usually requires emergency treatment shortly after birth. However, both PAPVR and TAPVR are similar in that they interfere with the normal way blood flows through the heart.
Finally, remember these things:
PAPVR may not affect your life at all. Or, it may cause symptoms or complications that require treatment. However, it is normal for you to feel stressed or anxious about PAPVR. If your child has PAPVR, it is also normal for you to be concerned about their well-being. These feelings are very normal, and don't feel bad about them.
Share your concerns with your doctor. Ask about resources that can help you and your family. Learning more about congenital heart disease – whether it affects you, your child, or a loved one – can help you better manage your condition. Talking to a counselor can also help you put your mind at ease. During this journey, never hesitate to ask your doctor about any questions or concerns you may have. You are not alone.
` PAPVR, heart disease, congenital diseases, lungs, blood circulation, heart surgery, congenital heart disease, pulmonary veins, heart surgery
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