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Living with Paroxysmal familial ventricular fibrillation

A rare inherited heart rhythm condition with episodes of dangerously fast, chaotic heartbeats in an otherwise healthy heart.

Understanding Paroxysmal familial ventricular fibrillation

Paroxysmal familial ventricular fibrillation is a rare inherited heart rhythm condition.

People have ventricular fibrillation, which is a fast, disorganized heart rhythm, even though the heart's structure and function are normal. J waves on the heart tracing are linked to a higher chance of events at night and of repeat events. It can start at any time in life.

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

    Specialists who may be involved include genetic specialists and 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
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
Which heart tests, such as a heart tracing, should I have?
What treatments are available to protect my heart rhythm?
Should my relatives be screened?

Quick facts

Symptoms usually startany time in life
InheritanceAutosomal Dominant

Changes in the genes (also called variants) cause this condition. It is autosomal dominant, which means one changed copy of the gene is enough to cause it. GARD doesn't list a specific gene.

Genetic

Also known as: familial paroxysmal ventricular fibrillation, non brugada type; idiopathic ventricular fibrillation; idiopathic ventricular fibrillation, non brugada type; ivf; paroxysmal familial ventricular fibrillation (disorder); paroxysmal ventricular fibrillation

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Paroxysmal familial ventricular fibrillationGARD ID 4227 · 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 Paroxysmal familial ventricular fibrillation.

Explore the Paroxysmal familial ventricular fibrillation blog

Explore research for Paroxysmal familial ventricular fibrillation

Explore actively recruiting Paroxysmal familial ventricular fibrillation studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Paroxysmal familial ventricular fibrillation 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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