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Living with Familial focal epilepsy with variable foci

An uncommon inherited epilepsy in which seizures start in one part of the brain, and the part can differ between relatives.

Understanding Familial focal epilepsy with variable foci

Familial focal epilepsy with variable foci (FFEVF) is an uncommon form of epilepsy that runs in families.

Seizures can start at any age from infancy to adulthood. They begin in one region of the brain, often the temporal or frontal lobe. In some people the seizure spreads to the whole brain. Relatives may have seizures starting in different brain areas. Some people also have a brain difference called focal cortical dysplasia, and seizures may be hard to control with medicine. Most people have normal intelligence.

Signs & symptoms

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

  • Seizures that start in one part of the brain (focal)
  • Grand mal seizures (tonic-clonic)
  • Seizures during sleep
  • Behavior problems in some people
  • Learning or thinking difficulties in some people
  • A feeling of deja vu before a seizure

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 brain and nervous system specialists, genetic specialists and seizure and epilepsy 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

    Epilepsy Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Genetic specialists (geneticists); Seizure and epilepsy specialists (epileptologist)
Expert care
Expert lists: Epilepsy Foundation
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 Epilepsy Foundation
  • 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
Can genetic testing find the gene change in our family?
Would a brain scan check for focal cortical dysplasia?
What are the options if medicine does not control the seizures?

Quick facts

Symptoms usually starta variety of ages
InheritanceAutosomal Dominant

This condition is autosomal dominant, which means a change in one copy of the gene can cause it. GARD does not name the gene here.

GeneticNeurological

Also known as: epilepsy, familial focal, with variable foci; familial partial epilepsy with variable foci; ffevf; ffevf - familial focal epilepsy with variable foci; fpevf

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Familial focal epilepsy with variable fociGARD ID 13295 · 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 Familial focal epilepsy with variable foci.

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