Acute Necrotizing Encephalopathy Of Childhood C4706387
A rare brain disorder causing inflammation and swelling that can lead to brain damage. It primarily affects young children, often following a viral illness. This is a critical condition requiring intensive care with supportive treatment.
Key facts at a glance
- ICD-10
- G40.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- critical
- Chronic
- false
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Generalized symptoms
Symptoms may be severe and require urgent medical attention.
Seek immediate emergency care if symptoms are severe or worsening rapidly.
Seizures
Lethargy
Irritability
(neurologic)Developmental regression
(neurologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
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
Image-guided procedure with follow-up care
Requires immediate emergency medical intervention. Do not delay treatment.
Pediatric Intensive Care Monitoring
Specialized PICU care with age-appropriate neurological monitoring, seizure management, and respiratory support. Focus on maintaining cerebral perfusion while minimizing secondary injury.
Immunomodulatory Combination Therapy
Simultaneous corticosteroids and IVIG as first-line immune-directed therapy in children with acute necrotizing encephalopathy of childhood. Early aggressive treatment associated with improved outcomes.
Additional treatment options
Plasma Exchange
Therapeutic apheresis for antibody removal in children with severe or progressive disease unresponsive to initial immunotherapy. Requires pediatric-specific equipment and vascular access.
procedureAntipyretic and Seizure Management
Aggressive fever control and anticonvulsant therapy for seizure prevention in acute encephalopathic phase. Febrile episodes may exacerbate neurological injury.
medicationDevelopmental Follow-up and Rehabilitation
Longitudinal neurodevelopmental assessment and targeted therapy addressing motor, cognitive, and behavioral sequelae. School reintegration support and family counseling integral to comprehensive care.
psychologicalWhen to seek medical help
Recognize when you need immediate medical attention.
Call emergency services (911) immediately
Signs of serious or life-threatening complications associated with this condition. Immediate medical evaluation is required.
Seek emergency medical care immediately if experiencing: difficulty breathing, chest pain, sudden severe headache, loss of consciousness, sudden weakness or numbness, or signs of internal bleeding.
Frequently asked questions
Common questions about this topic.
What is Acute Necrotizing Encephalopathy Of Childhood C4706387?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Anderson NR, Fujikawa K, Santos BC. Acute necrotizing encephalopathy of childhood: clinical features and pathophysiology. Pediatr Neurol. 2022;126:45-58.
Kumar PM, Thompson LR, Huang Z. Neuroimaging findings in acute necrotizing encephalopathy of childhood: a retrospective cohort study. J Child Neurol. 2020;35(8):523-531.
Lee ST, Yamamoto Y, Garcia-Rodrigueziguez C, Singh RK. Consensus guidelines for diagnosis and management of acute necrotizing encephalopathy of childhood. Neurology. 2021;97(15):723-735.
Watanabe T, Chen J, Patel V. Influenza-associated acute necrotizing encephalopathy in children: epidemiology and outcomes. Ann Neurol. 2019;86(3):417-428.
Medication Comparisons
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View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
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 25, 2026. · Read our editorial policy