Skip to content
knowrare
HealthSignal
Your condition community

Living with Genetic developmental and epileptic encephalopathy

A condition that causes seizures in newborns, usually within the first three months of life.

Understanding Genetic developmental and epileptic encephalopathy

Genetic developmental and epileptic encephalopathy, also called early infantile epileptic encephalopathy (EIEE), is a brain disorder with seizures in newborns.

Seizures usually start within the first three months of life. Infants may mainly have tonic seizures, which stiffen the muscles, but can also have partial seizures or, rarely, myoclonic seizures (jerks or twitches). Most infants show underdeveloped cerebral hemispheres (parts of the brain) or structural differences.

Signs & symptoms

GARD describes the main feature as seizures:

  • Seizures in the first months of life
  • Tonic seizures (muscle stiffening)
  • Partial seizures
  • Myoclonic seizures (jerks or twitches), less often

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 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

    FamilieSCN2A Foundation and Epilepsy Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Seizure and epilepsy specialists (epileptologist)
Expert care
Expert lists: FamilieSCN2A Foundation, 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 FamilieSCN2A Foundation 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
Can genetic or metabolic testing find the cause for my child?
Which seizure medicines or treatments might help?
Which specialists, such as a pediatric neurologist, should follow my child?

Quick facts

Some cases are caused by metabolic disorders or by changes in several different genes. GARD says the cause can't be determined for many cases.

Patient organizations

Source: NIH GARD · Genetic developmental and epileptic encephalopathyGARD ID 9255 · 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 Genetic developmental and epileptic encephalopathy.

Explore the Genetic developmental and epileptic encephalopathy blog

Explore research for Genetic developmental and epileptic encephalopathy

Explore actively recruiting Genetic developmental and epileptic encephalopathy studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Genetic developmental and epileptic encephalopathy 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

Powered by HealthSpark, our AI chat helper

I can help you find recruiting Genetic developmental and epileptic encephalopathy studies. Enter a ZIP code, address or city below and I'll look within 50 miles.

Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

Get Signals for Genetic developmental and epileptic encephalopathy

Stay in the loop with community stories and updates from medical researchers.

HealthStoryfor Genetic developmental and epileptic encephalopathy

Create a living journal that talks back

HealthStory evolves private journaling with a living AI journal that talks back and asks thoughtful questions, helping you capture your Genetic developmental and epileptic encephalopathy experiences more deeply and prepare for better conversations with your doctors and care team.

Start your journal

Your journal is private. Sharing your story publicly is a separate choice, made with Share your story above.