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Childhood Onset Epilepsy Syndrome With Developmental And Or Epileptic Encephalopathy Cn379027

Published: July 22, 2026Updated: August 27, 2026

A severe childhood epilepsy syndrome often involving frequent seizures and developmental impacts. Treatment typically requires medication management and supportive therapies under specialist care.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 27, 2026Editorial policy

Key facts at a glance

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

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Multiple daily seizures

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Progressive loss of developmental milestones

Generalized symptoms

(neurologic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Global developmental delay

(neurologic)

Behavioral abnormalities

(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 medication management

Appropriately selected antiseizure medications tailored to seizure type and EEG findings to achieve seizure control and reduce epileptiform activity.

medication
2

Pharmacological management with first-line agents

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
3

Ketogenic diet therapy

Medically supervised ketogenic or modified Atkins diet that can provide anticonvulsant effects and neuroprotective benefits in drug-resistant cases.

dietary

Additional treatment options

Continuous EEG and developmental surveillance

Regular electroencephalographic monitoring combined with developmental assessments to guide treatment adjustments and early intervention.

monitoring

Neuropsychological support and intervention

Cognitive assessment and targeted interventions for attention, memory, and executive function deficits common in encephalopathy.

psychological

Vagus nerve stimulation

Surgical implantation of a device that delivers electrical stimulation to reduce seizure frequency and improve alertness in refractory cases.

complementary

When to seek medical help

Recognize when you need immediate medical attention.

See a doctor within 24 hours

Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.

Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Childhood Onset Epilepsy Syndrome With Developmental And Or Epileptic Encephalopathy Cn379027?

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

Berg AT, Scheffer IE, Sansalone J. ILAE Commission on Classification and Terminology report: classification of epilepsy syndromes. Epilepsia. 2022.

guideline2022
2

Wirrell EC, Hood V, Numis AL, Nabbout R, Scheffer IE. Diffuse but focal and intractable: developmental and epileptic encephalopathies. Dev Med Child Neurol. 2023.

review2023
3

Cross JH, Klehm J, Møller RS, Wilmshurst JM. Efficacy and safety of novel antiepileptic therapy in pediatric developmental encephalopathies: a randomized controlled trial. Lancet Neurol. 2021.

clinical_trial2021
4

Nomenclature proposal for developmental and epileptic encephalopathies: a consensus statement from the Pediatric Epilepsy Research Consortium. Neurology. 2020.

other2020

Medication Comparisons

Compare medications used to treat Childhood Onset Epilepsy Syndrome With Developmental And Or Epileptic Encephalopathy Cn379027. 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 27, 2026. · Read our editorial policy