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Living with Pulmonary arterial hypertension

A progressive condition in which blood pressure in the lung arteries is too high, causing shortness of breath and fainting.

Understanding Pulmonary arterial hypertension

Pulmonary arterial hypertension is a progressive disorder with abnormally high blood pressure in the pulmonary artery, which carries blood from the heart to the lungs.

The tiny arteries in the lungs narrow, which makes it harder for blood to flow through. The heart's right side must work harder, and over time this can damage the right ventricle. It can start at any time in life.

Signs & symptoms

Symptoms vary from person to person. GARD says the most common are:

  • Shortness of breath with activity (dyspnea)
  • Fainting spells
  • Dizziness
  • Swelling in the ankles or legs
  • Chest pain
  • Fast heartbeat

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 genetic specialists and lung and breathing specialists.

  3. Ask which tests can help

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

  4. Connect with expert centers

    Pulmonary Hypertension Association may keep lists of experts for this condition.

Care & treatment

Care team
Genetic specialists (geneticists); Lung and breathing specialists (pulmonologists)
Expert care
Expert lists: Pulmonary Hypertension Association
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 Pulmonary Hypertension Association and other patient organizations
  • 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
Is my pulmonary hypertension inherited, and should I have genetic testing?
Which tests will show how well my heart and lungs are working?
Which specialists should be on my care team?

Quick facts

Symptoms usually startany time in life
InheritanceAutosomal Dominant

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

GeneticRespiratory

Also known as: hypertensive pulmonary arterial disease; increased blood pressure in blood vessels of lungs; pah; primary pulmonary hypertension; pulmonary artery hypertension; pulmonary hypertensive arterial disease

Patient organizations

Source: NIH GARD · Pulmonary arterial hypertensionGARD ID 7501 · 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 arterial hypertension.

Explore the Pulmonary arterial hypertension blog

Explore research for Pulmonary arterial hypertension

Explore actively recruiting Pulmonary arterial hypertension studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Pulmonary arterial hypertension 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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