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Living with Subvalvular aortic stenosis

A heart condition in which a fixed narrowing below the aortic valve blocks blood flow out of the left lower chamber.

Understanding Subvalvular aortic stenosis

Subvalvular aortic stenosis is a fixed narrowing below the aortic valve that blocks blood flow out of the left side of the heart.

The blockage is in the passage leading from the left lower heart chamber (left ventricle) to the aortic valve. GARD does not say much more about this condition yet.

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet.

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

    Your doctor may refer you to a specialist who knows rare conditions.

  3. Ask which tests can help

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

  4. Connect with expert centers

    Adult Congenital Heart Association may keep lists of experts for this condition.

Care & treatment

Care team
A doctor familiar with rare conditions, plus specialists as needed
Expert care
Expert lists: Adult Congenital Heart 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 Adult Congenital Heart Association
  • 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 the narrowing in my heart?
How often will heart checks be needed?
Will I need a procedure to relieve the blockage?

Quick facts

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

Also known as: narrowing of blood vessel below aortic heart valve; subaortic stenosis; subvalvar stenosis; subvalvular aortic stenosis, eisenberg type; subvalvular stenosis

Patient organizations

Source: NIH GARD · Subvalvular aortic stenosisGARD ID 5052 · 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 Subvalvular aortic stenosis.

Explore the Subvalvular aortic stenosis blog

Explore research for Subvalvular aortic stenosis

Explore actively recruiting Subvalvular aortic stenosis studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Subvalvular 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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