The joy of bringing a newborn baby home is indescribable, right? But sometimes, along with that joy, there are times when a little fear comes to mind. Any mother or father would be worried if they saw that their baby's lips and fingertips were a little blue. If they saw something like this, it could be due to a congenital heart condition. Today we are talking about Pulmonary Atresia , a serious but treatable heart condition.
Simply put, what is Pulmonary Atresia?
This may sound a bit complicated, but let's keep it simple. Our heart is like a small house with four rooms. The main job of the two rooms on the right side of this house (the right atrium and the ventricle) is to collect the "dirty" blood that has run out of oxygen as it travels throughout the body, and send it to the lungs to be cleaned.
Blood is sent to the lungs through a large blood vessel called the Pulmonary Artery . At the beginning of this blood vessel, there is a valve that acts like a door. We call it the Pulmonary Valve . When this door opens, the blood passes into the lungs.
Now imagine, what happens if this door, the pulmonary valve, is not formed at birth, or if it is completely closed? That is the condition we call Pulmonary Atresia .
Simply put, in this condition, the main gate that sends oxygenated blood from the heart to the lungs is blocked from birth. As a result, oxygen-poor, blue-colored blood circulates throughout the body.
This is a very rare condition. Even in a country like America, only one in 6,700 babies born have this condition.
Other heart defects that may be seen with this condition
A baby with pulmonary atresia may have several other heart problems in addition to this main defect.
- Right side of the heart not developing properly: The right ventricle, which pumps blood to the lungs, and the tricuspid valve above it may not develop properly and be small.
- A hole in the heart: Normally, a baby has a small hole (Foramen Ovale) between the two upper chambers (atria) of the heart when it is in the womb. This closes after birth. However, in some babies, the hole may remain open. Also, there may be a hole in the wall between the two lower chambers (ventricles) of the heart (Ventricular Septal Defect - VSD). This hole allows blood with low oxygen levels to mix with blood with high oxygen levels.
How do you know if your baby has this condition? Symptoms
Symptoms of Pulmonary Atresia usually begin to appear within the first few hours or days after birth. The main and most easily recognizable symptom is:A condition called cyanosis .
This means that the baby's lips, fingertips, and toes appear blue due to a lack of oxygen in the blood. This blue color is why some people call this condition "blue baby syndrome."
| Symptom | Description |
|---|---|
| Blue skin (Cyanosis) | Blue or purple discoloration of the lips, fingertips, and under the nails. |
| Difficulty breathing | Rapid breathing, labored breathing (Dyspnea). |
| Unusual tiredness | The baby doesn't even have the strength to suckle, and is constantly sleepy. |
| Difficulty drinking milk | Refusing to drink milk because it makes you dizzy even after drinking a little. |
| Cold, clammy skin | When you touch the baby's limbs, they feel cold and sticky, like sweat. |
| Frequent crying/restlessness | The baby is in discomfort and is constantly crying for no reason. |
Why does this happen? Causes and risk factors
The exact cause of this condition is not yet known . This heart defect occurs within the first 8 weeks of a baby's development in the womb. However, certain factors have been found to increase the risk.
- Genetic factors: The risk is higher if someone in the family has congenital heart disease or certain genetic diseases (e.g. DiGeorge's syndrome).
- Mother's health during pregnancy:
- Smoking during pregnancy.
- Diabetes not being properly controlled.
- Use of certain medications (teratogenic drugs) that are not suitable for use during pregnancy.
- Parental factors:
- Having a congenital heart disease in one of the parents.
- Advanced maternal age.
How do doctors accurately diagnose this disease?
In most cases, these conditions can be identified before the baby is born, that is, through scans performed during pregnancy.
- During pregnancy: If the doctor has any doubts about the baby's heart during a routine scan (ultrasound), he or she will refer you for a special scan called a fetal echocardiogram . This allows the baby's heart function and structure to be seen very clearly.
- After the baby is born: If the doctor hears an abnormal sound (heart murmur) when listening to the baby's heart, or if the baby is blue, this disease is suspected. Then, several tests are done to confirm the disease.
| Test | What does this do? |
|---|---|
| Pulse Oximetry | A small clip-like device is attached to the baby's big toe and measures the amount of oxygen in the blood. |
| Chest X-ray | It gives a rough idea of the size, shape, and how blood flows to the lungs. |
| Electrocardiogram (ECG) | The electrical activity of the heart is measured to see if there is any pressure on the heart muscle or if there is an abnormal rhythm. |
| Echocardiogram (Echo) | This is the most important test . It's like a heart scan. The structure of the heart, the function of the valves, the way blood flows, and whether there are any holes can be seen very clearly. |
What are the treatments for this?
Pulmonary Atresia should be treated as soon as it is diagnosed. It cannot be completely cured with medication. However, medication and other methods are used to save the baby's life and stabilize the condition until it is ready for surgery. The final solution is to perform a series of surgeries .
1. Immediate treatment (medicines and procedures)
- Treatment: After a baby is born, there is a special blood vessel (Ductus Arteriosus) that normally closes. A medicine called Alprostadil is given through a vein (IV) to keep this blood vessel open. When this blood vessel is open, some of the oxygen-poor blood can go to the lungs to get oxygen. This is a temporary solution.
- Procedures: Sometimes, a stent is placed to keep the blood vessel open. Or a septostomy is done to enlarge the hole between the two upper chambers of the heart. These are done to improve blood flow a little.
2. Surgery (surgery)
The type of surgery the baby needs depends on the development of the right side of his heart and whether or not there are holes in the heart.
The important thing is that these surgeries do not completely "cure" the disease. Instead, they restore the heart's function as much as possible, allowing the baby to live a normal life.
Many children undergo a series of three stages of open-heart surgery , which are performed within the first few years of a baby's life.
1. First surgery (BTT Shunt): This is usually done within the first few days after the baby is born. Here, a small artificial tube (shunt) is connected to a branch of a main artery that supplies blood to the body, which is the artery that carries blood to the lungs. This creates a new path for blood to flow to the lungs.
2. Second surgery (Glenn Procedure): This surgery is performed when the baby is between 4 and 8 months old . Here, the previously inserted tube is removed and the oxygen-poor blood from the upper body is connected directly to the lungs.
3. Third surgery (Fontan Procedure): This is the final stage of this series of surgeries. The baby is between 2 and 4 years old.This is done in between. Here, the oxygen-poor blood coming from the lower part of the body is also directed directly to the lungs.
Once these three surgeries are complete, all the oxygen-poor blood in the body goes directly to the lungs to receive oxygen, instead of going to the right side of the heart.
What happens after the surgery?
Because these are major surgeries, the baby will need to stay in the hospital, in the intensive care unit (ICU), for about a week or two. They will need things like a ventilator to help them breathe, monitors to monitor their heart function, and painkillers.
Some babies may not be able to suckle after surgery. In such cases, milk is given through a nasogastric tube. Even after you go home, you should pay close attention to your baby's weight and growth.
The most important thing is that this child will have to be under the supervision of a cardiologist for the rest of his life . It is imperative to go to the clinics for checkups at the scheduled times.
As you get older, you may need more surgeries or other treatments. Also, regular medical checkups are very important because there is a risk of complications such as arrhythmia and heart failure.
Take-Home Message
- Pulmonary atresia is a serious congenital heart disease in which the valve that carries blood from the heart to the lungs becomes blocked.
- The main symptom is blue discoloration of the baby's lips and fingertips (cyanosis). Difficulty breathing and a reluctance to drink milk may also be seen.
- This condition can be diagnosed through scans during pregnancy or immediately after the baby is born.
- The treatment is a series of open-heart surgeries performed in stages. Although these do not cure the disease, they give the child the opportunity to live a good life.
- These children require lifelong supervision and follow-up by a cardiologist.
- If your child has these symptoms, don't panic and see a doctor as soon as possible. Quick diagnosis and treatment are crucial to saving the child's life.
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