Pulmonary Atresia with Intact Ventricular Septum: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 2, 2026.
What kind of doctor treats Pulmonary Atresia with Intact Ventricular Septum?
A pediatric cardiologist is a doctor who specializes in heart problems in children. This is the main specialist who treats this condition. Adults who were treated as babies continue with cardiologists who focus on adult congenital heart disease, meaning heart conditions people are born with.
What it is
Pulmonary atresia with intact ventricular septum is a rare heart problem that babies are born with. The word "pulmonary" refers to the lung artery. "Atresia" means a body opening or passage that never formed properly. In this condition, the valve that lets blood flow from the heart to the lungs did not develop. Because of this, blood cannot reach the lungs the usual way. The "intact ventricular septum" part means the wall between the two lower pumping chambers of the heart is whole, with no hole in it.
Because the lung artery is blocked, blood must find another route to the lungs. Babies have an opening before birth called the ductus arteriosus, a small blood vessel that connects the heart to the lung artery. It usually closes shortly after birth. When it does, the baby may not get enough oxygen.
Symptoms
Babies may look blue or gray, breathe fast, and tire easily during feeding. Poor weight gain and unusual sleepiness are also common.
Causes and who gets it
The defect forms early in pregnancy, but the exact cause is usually unknown. It is rare and rarely runs in families.
How doctors diagnose it
A fetal echocardiogram during pregnancy can find it before birth. After birth, an echocardiogram confirms the diagnosis.
Treatment
Prostaglandin medicine keeps the ductus arteriosus open until surgery. Surgery or procedures are needed to restore blood flow to the lungs.
When to see a doctor
If a newborn turns blue, breathes fast, or feeds poorly, seek emergency care immediately. Diagnosed babies need urgent specialist care.
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. Neither type can treat this condition themselves. Surgery and heart procedures always require a specialist team. What these primary care doctors can do is help with everyday health needs, coordinate records between specialists, and manage other conditions like blood pressure or infections. They would refer the patient to a cardiologist for all heart-related care and can be a helpful point of contact for questions between specialist visits.
Common questions
Can a child with this condition live a normal life?
Many children do well after treatment, but outcomes vary a lot. This depends on how the heart formed and what type of surgery is needed. Most will need regular follow-up with a heart specialist for their whole life.
Can this condition be found before birth?
Yes, often it can. A fetal echocardiogram during pregnancy can show the heart defect. This lets doctors plan for care right at delivery.
Does this condition run in families?
In most cases, no family member has had it. Doctors usually cannot point to a specific inherited cause.
Why does the baby turn blue?
Blue or gray coloring happens because the blood is not picking up enough oxygen. When blood low in oxygen travels through the body, the skin can look bluish. This sign in a newborn always needs emergency attention.
Sources
- NIH Genetic and Rare Diseases Information Center - Pulmonary atresia with intact ventricular septum
- MedlinePlus - Congenital Heart Disease
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.
