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Living with Pulmonary atresia with ventricular septal defect

A rare heart difference present from birth, with a blocked lung valve and a hole between the lower heart chambers.

Understanding Pulmonary atresia with ventricular septal defect

Pulmonary atresia with ventricular septal defect (PA-VSD) is a rare heart malformation present from birth that causes low oxygen levels (cyanosis).

It involves underdevelopment of the path from the right lower heart chamber to the lungs, a blocked pulmonary valve, a hole between the lower chambers (VSD), and extra blood vessels to the lungs. Signs depend on the exact pattern. Some people have few symptoms, some are very blue (cyanotic), and some develop heart failure. It may be a severe form of Tetralogy of Fallot.

Signs & symptoms

Symptoms vary from person to person. GARD describes these features:

  • Blue-tinged skin (cyanosis)
  • Heart failure
  • Few symptoms in some people

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include heart and blood vessel specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

Care & treatment

Care team
Heart and blood vessel specialists (cardiologists)
Expert care
Ask about multidisciplinary care centers for rare conditions
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with rare disease patient organizations for support
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Which pattern of PA-VSD does my child have?
What surgery or treatment is recommended, and when?
Could this be a severe form of Tetralogy of Fallot?

Quick facts

InheritanceAutosomal Dominant

GARD lists autosomal dominant inheritance, meaning one changed copy of a gene is enough. It doesn't name a gene here.

Also known as: pavsd - pulmonary atresia with ventricular septal defect; pulmonary valve atresia with ventricular septal defect

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Pulmonary atresia with ventricular septal defectGARD ID 4588 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Pulmonary atresia with ventricular septal defect.

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