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Living with Congenital aortopulmonary window

A rare heart difference from birth in which there is an opening between the aorta and the pulmonary artery.

Understanding Congenital aortopulmonary window

Congenital aortopulmonary window is a rare heart defect present from birth in which the aorta and the pulmonary artery are connected.

The opening is between the ascending aorta and the pulmonary trunk, and both heart valves are normally formed. It may occur alone or with other differences. Serious effects such as heart failure or high lung blood pressure typically develop early in life.

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet. The summary describes:

  • Heart failure (congestive heart failure)
  • High blood pressure in the lungs (pulmonary hypertension)

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
What treatment options exist for the opening?
How often should the heart be checked?
Are other heart or body differences present?

Quick facts

GARD doesn't describe a cause for this condition yet.

Also known as: congenital aortopulmonary artery fistula; congenital aortopulmonary septal defect

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Congenital aortopulmonary windowGARD ID 738 · 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 Congenital aortopulmonary window.

Explore the Congenital aortopulmonary window blog

Explore research for Congenital aortopulmonary window

Explore actively recruiting Congenital aortopulmonary window studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Congenital aortopulmonary window with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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