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Living with Neonatal-onset encephalopathy with rigidity and seizures

A rare genetic brain condition with stiffness and hard-to-control seizures starting in the newborn period.

Understanding Neonatal-onset encephalopathy with rigidity and seizures

Neonatal-onset encephalopathy with rigidity and seizures is a rare genetic nervous system condition that starts at birth.

Babies have stiffness and seizures that are hard to control. Jerking can begin before birth. Babies have small heads, are not visually attentive, do not feed independently, and make little developmental progress. Pauses in breathing and slow heartbeat are frequent. A milder course has been described in some people.

Signs & symptoms

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

  • Stiff muscles (rigidity)
  • Seizures, including muscle jerks
  • Pauses in breathing (apnea)
  • Slow heartbeat (bradycardia)
  • Feeding difficulties
  • Delayed development

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. Consider genetic testing

    Changes in BRAT1 are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

  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
Should we have genetic testing for the BRAT1 gene?
Which treatments can help control seizures?
How can we support feeding and breathing?

Quick facts

Symptoms usually startNewborn
InheritanceAutosomal Recessive
GenesBRAT1

GARD lists changes in the BRAT1 gene. A child inherits a changed copy of the gene from each parent (autosomal recessive).

GeneticNeurological

Also known as: lethal neonatal rigidity-multifocal seizure syndrome; lethal neonatal rigidity, multifocal seizure syndrome; lethal neonatal spasticity-epileptic encephalopathy syndrome; lethal neonatal spasticity, epileptic encephalopathy syndrome

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Neonatal-onset encephalopathy with rigidity and seizuresGARD ID 17718 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

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