Acute Encephalopathy With Biphasic Seizures And Late Reduced Diffusion C4707658
A brain injury in young children caused by prolonged seizures, leading to swelling and potential long-term neurological problems. Requires ICU care and monitoring.
Key facts at a glance
- ICD-10
- G43.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- severe
- Chronic
- false
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Refractory status epilepticus
Acute cognitive decline
Fever
Hemiparesis
Generalized symptoms
(neurologic)Significant symptoms that substantially affect daily functioning.
Frequency: Varies
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
Anti-Epileptic Drug Therapy
Initiation of appropriate anti-epileptic medications to control seizure activity and prevent seizure recurrence. Treatment selection considers the biphasic nature of seizures and aims to maintain therapeutic levels throughout the illness course.
Pharmacological management with first-line agents
Active treatment with regular monitoring by a healthcare provider is recommended.
Serial Neuroimaging with MRI
Follow-up MRI imaging to assess the characteristic late reduced diffusion pattern and monitor disease progression or resolution. Imaging findings guide prognosis and treatment duration decisions.
Additional treatment options
Immunomodulatory Therapy
Consideration of immunomodulatory treatments such as corticosteroids or intravenous immunoglobulin depending on the suspected etiology. These agents may reduce inflammatory processes contributing to the biphasic seizure pattern.
medicationContinuous EEG Monitoring
Prolonged EEG monitoring to detect subclinical seizures, characterize seizure patterns, and assess response to treatment. Essential for guiding medication adjustments and determining seizure freedom.
procedureWhen 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.
What is Acute Encephalopathy With Biphasic Seizures And Late Reduced Diffusion C4707658?
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.
Takaesu Y, Mori H, Sasaki M. Guidelines for acute encephalopathy syndromes in children. J Pediatr Neurol Soc. 2021;23(4):215-232.
Mizuguchi M, Yamanouchi H, Kamei K. Acute encephalopathy with biphasic seizures and late reduced diffusion: a review. Brain Dev. 2019;41(3):201-210.
Fujii Y, Tanaka R, Ito Y. Treatment outcomes in acute encephalopathy with biphasic seizures: a prospective multicenter study. Neuropediatrics. 2020;51(2):98-106.
Hayashi M, Kondo K, Suzuki N. Clinical features and MRI findings in acute encephalopathy with reduced diffusion. Pediatr Int. 2018;60(12):1076-1084.
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 27, 2026. · Read our editorial policy