Pulmonary Atresia: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 2, 2026.
What kind of doctor treats Pulmonary Atresia?
A pediatric cardiologist, a doctor who treats heart problems in children, usually leads the care. Some patients also see a pulmonologist, especially if the lungs were affected. Adult survivors see a cardiologist for adults with congenital heart disease. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What it is
Pulmonary atresia is a heart defect that a baby is born with. The pulmonary valve is the door that lets blood flow from the heart to the lungs. In this condition, the valve is sealed shut, so blood cannot pick up oxygen in the lungs. It is usually found before or soon after birth and needs treatment right away.
Symptoms
Symptoms often show up in the first days of life. A baby may have bluish or grayish skin, lips, or nails, called cyanosis. The baby may breathe fast, tire easily during feeding, or seem pale and sweaty.
Causes and who gets it
Doctors do not fully know why pulmonary atresia happens. It forms during pregnancy, when the pulmonary valve fails to develop. Some cases are linked to genetic conditions, and factors such as poorly controlled diabetes in the mother may raise the chance of heart defects.
How doctors diagnose it
Doctors often spot pulmonary atresia before birth on a fetal ultrasound. After birth, an echocardiogram uses sound waves to make moving pictures of the heart and can show the blocked valve. Other tests may include an electrocardiogram, a chest X-ray, or a cardiac catheterization.
Treatment
Treatment is usually needed soon after birth. Before surgery, babies often get medicine through a vein that keeps a blood vessel called the ductus arteriosus open, letting some blood reach the lungs. Surgeons may repair the valve, place a tube to restore blood flow, or do a series of operations. Many children need regular heart checkups for life.
When to see a doctor
If a baby has bluish skin, fast breathing, poor feeding, or unusual sleepiness, get medical help right away. Pulmonary atresia is an emergency in newborns. Treated patients should keep all follow-up appointments with a heart specialist.
How a direct primary care or concierge doctor fits in
A direct primary care doctor is paid a flat monthly fee instead of billing insurance, while a concierge doctor usually charges more and often works with insurance. Either one can handle regular checkups, vaccines, and other common conditions, and can coordinate care among specialists. They cannot treat pulmonary atresia directly, so they would refer a patient to a cardiologist.
Common questions
Can pulmonary atresia be cured?
Surgery can restore blood flow to the lungs, and many children grow up to live active lives. Most patients need ongoing heart care, and outcomes vary from person to person. Doctors cannot promise a cure for every patient.
Can it be found before birth?
Yes, often. A routine pregnancy ultrasound can show signs of the defect, and a fetal echocardiogram can confirm it. Finding it early lets the medical team plan for care at delivery.
What happens if it is not treated?
Without treatment, a newborn cannot get enough oxygen and will become very sick. This is why doctors treat it in the first days of life. Untreated, the condition is life threatening.
Can children with pulmonary atresia exercise?
Many can be active, but limits depend on the type of repair and how well the heart works. The heart specialist will give guidance on safe activity. Each child's situation is different.
Sources
- MedlinePlus - Pulmonary atresia
- Centers for Disease Control and Prevention - Pulmonary Atresia
- American Heart Association - Pulmonary Atresia
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
