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Induction and Clinical Scoring of Chronic-Relapsing Experimental Autoimmune Encephalomyelitis
Published on: July 4, 2007
Anakinra in Severe RSV-Associated Autoinflammatory Encephalopathy With Delayed ADEM-Like Changes
Oi-Wa Chan1, Yi-Ting Cheng2, Yi-Hsuan Liu2
1Division of Pediatric Critical Care Medicine and Pediatric Neurocritical Care Center, Chang Gung Children's Hospital and Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Taoyuan, Taiwan.
Pediatrics
|August 4, 2026
Summary
Respiratory syncytial virus (RSV)-associated encephalopathy can cause severe neurological issues. A subset of children may benefit from IL-1 receptor antagonist anakinra, targeting autoinflammatory pathways.
Area of Science:
- Pediatric Neurology
- Immunology
- Infectious Diseases
Background:
- Respiratory syncytial virus (RSV)-associated encephalopathy is a rare but severe complication in children.
- Neuroinflammation, not direct viral invasion, is increasingly implicated in the neurological injury of some patients.
- Current treatments for severe cases are often ineffective.
Purpose of the Study:
- To describe two cases of pediatric RSV-associated encephalopathy.
- To investigate the potential role of IL-1-driven autoinflammation in disease pathogenesis.
- To evaluate the efficacy of anakinra in refractory cases.
Main Methods:
- Case report of two previously healthy children with RSV-associated encephalopathy.
- Clinical assessment, serial brain magnetic resonance imaging (MRI), and laboratory investigations including serum cytokine levels.
- Treatment with high-dose corticosteroids, intravenous immunoglobulin, IL-6 blockade, and anakinra.
Main Results:
- Both patients presented with rapidly progressive encephalopathy post-RSV infection.
- Initial MRI scans were normal, with follow-up showing white matter lesions resembling acute disseminated encephalomyelitis.
- Patients were refractory to standard treatments but showed neurologic and radiologic recovery after anakinra administration.
- Elevated serum IL-1β levels were noted in one patient.
Conclusions:
- An IL-1-driven autoinflammatory process may contribute to severe RSV-associated encephalopathy in select children.
- Repeat neuroimaging is crucial for diagnosing evolving neurological damage.
- Targeted immunomodulation with anakinra may be a viable treatment option for refractory cases.
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