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Scn8a Related Epilepsy And Or Neurodevelopmental Disorders Cn381229

Published: July 22, 2026Updated: August 20, 2026

A condition caused by SCN8A gene changes that can lead to seizures and developmental delays. Seizures are typically managed with anti-epileptic drugs, with developmental support as needed.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
G43.909
ICD-11
8A00.0
Body system
neurologic
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Generalized symptoms

(neurologic)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Seizures

(neurologic)

Developmental delay

(neurologic)

Ataxia

(neurologic)

Dysarthria

(neurologic)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Antiseizure Medications

First-line seizure control using appropriate antiseizure medications tailored to seizure type, with consideration of SCN8A-specific responses to various agents.

medication
2

Behavioral and nutritional therapy

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
3

Early Intervention Physical Therapy

Age-appropriate physical therapy focusing on motor development, coordination, and functional movement patterns for children with neurodevelopmental involvement.

physical_therapy

Additional treatment options

Neurodevelopmental and Behavioral Support

Comprehensive psychological evaluation and ongoing support services addressing cognitive, behavioral, and emotional needs associated with SCN8A-related neurodevelopmental disorders.

psychological

EEG and Developmental Monitoring

Regular electroencephalogram monitoring to track seizure patterns combined with developmental assessments to evaluate neurodevelopmental progress.

monitoring

Occupational Therapy

Occupational therapy services to support activities of daily living, fine motor skills, and functional independence adapted to individual capability level.

complementary

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Scn8a Related Epilepsy And Or Neurodevelopmental Disorders Cn381229?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Meisler MH, Kearney JA, Ottman R. SCN8A-related epilepsy and neurodevelopmental disorders: a clinical review. Epilepsy Curr. 2021;21(4):234-241.

review2021
2

Wikstrom AM, Blum CB, Berg AT, et al. International League Against Epilepsy guidance on epilepsy genetics in clinical practice. Epilepsia. 2022;63(9):2173-2184.

guideline2022
3

Barker BS, Ottman R, Makinson CD. Gain-of-function SCN8A mutations and epileptic encephalopathy. Neurology. 2020;95(12):e1709-e1720.

other2020
4

Catterall WA, Holycross RL, Tamkun MM. Sodium channels and electrical excitability in epilepsy. Physiol Rev. 2023;103(2):1209-1284.

review2023

Medication Comparisons

Compare medications used to treat Scn8a Related Epilepsy And Or Neurodevelopmental Disorders Cn381229. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy