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Living with Supravalvar aortic stenosis

A heart defect present from before birth that narrows the large blood vessel leaving the heart, just above the aortic valve.

Understanding Supravalvar aortic stenosis

Supravalvular aortic stenosis (SVAS) is a heart defect in which the aorta is narrowed just above the aortic valve.

It develops before birth. The aorta is the large vessel that carries blood from the heart to the body. Some people also have narrowing in other blood vessels, most often the artery from the heart to the lungs. A heart murmur can often be heard. Without treatment, narrowing can lead to shortness of breath and chest pain. Severity varies a lot, even within a family, and some people never have symptoms.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Heart murmur
  • Shortness of breath
  • Chest pain (angina)
  • Fainting spells
  • Irregular heart rhythm
  • High blood pressure (less common)

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 heart and blood vessel specialists.

  3. Consider genetic testing

    Changes in ELN are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

Care & treatment

Care team
Genetic specialists (geneticists); 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
How severe is my aorta narrowing?
How often should heart imaging be done?
Would ELN gene testing help our family?

Quick facts

Symptoms usually startany time in life
InheritanceAutosomal Dominant
GenesELN

Changes in the ELN gene cause this condition. It is autosomal dominant, meaning one changed copy of the gene can cause it.

Genetic

Also known as: supra-valvular aortic stenosis; supravalvar aortic stenosis, eisenberg type; supravalvular aortic stenosis; supravalvular aortic stenosis (disease); svas; svas - supravalvar aortic stenosis

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Supravalvar aortic stenosisGARD ID 743 · 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 Supravalvar aortic stenosis.

Explore the Supravalvar aortic stenosis blog

Explore research for Supravalvar aortic stenosis

Explore actively recruiting Supravalvar aortic stenosis studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Supravalvar aortic stenosis 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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