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Published on: July 4, 2007
The Diagnostic Challenge and Prognosis of Autoimmune Encephalitis in Children: A Single-Center Retrospective Study
1Department of Pediatric Neurology, The Affiliated Children's Hospital, Capital Institute of Pediatrics, Beijing, China.
Insights
Autoimmune encephalitis (AE) in children presents with varied symptoms and requires cerebrospinal fluid antibody testing for diagnosis. Early treatment and monitoring are crucial for better outcomes in pediatric AE.
Area of Science:
- Pediatric Neurology
- Immunology
- Neuroscience
Background:
- Autoimmune encephalitis (AE) is a challenging immune-mediated neurological disorder in children.
- Diagnosis is complicated by diverse clinical presentations.
Purpose of the Study:
- To characterize the clinical features of pediatric AE.
- To evaluate diagnostic methods, including antibody assays, EEG, and MRI.
- To assess therapeutic outcomes in children with AE.
Main Methods:
- Retrospective analysis of 18 pediatric AE cases.
- Antibody testing in cerebrospinal fluid (CSF) and serum via indirect immunofluorescence.
- Electroencephalography (EEG) and magnetic resonance imaging (MRI) for neural signal assessment.
- Recording and analysis of demographics, symptoms, treatments, and outcomes.
Main Results:
- Common symptoms include convulsions and emotional disturbances.
- CSF antibody assays are crucial for diagnosis; serum tests have limitations for specific antibodies.
- EEG and MRI revealed abnormalities in most patients.
- High recovery rates (72.22%) were achieved with methylprednisolone, prednisone, and gamma globulin, but poor outcomes occurred in two patients.
Conclusions:
- Pediatric AE has diverse manifestations, with CSF antibodies, EEG, and MRI being key diagnostic tools.
- Young age, progressive symptoms, and delayed treatment are associated with poor outcomes.
Background:
Autoimmune encephalitis (AE) is an immune-mediated encephalitis; nevertheless, its diagnosis in children remains challenging. This study aimed to reveal the clinical characteristics, diagnostic processes, and therapeutic outcomes of AE in children.
Methods:
A total of 18 children with AE were enrolled. Antibody assay was performed in the cerebrospinal fluid (CSF) and serum samples by indirect immunofluorescence. Electroencephalography (EEG) and magnetic resonance imaging (MRI) were monitored to reflect abnormal neural signals. In addition, demographics data, neurological symptoms, therapeutic strategies, and outcomes were recorded and analyzed.
Results:
Convulsion (50.00%) and emotional disturbance (44.44%) were common clinical symptoms of AE. The biochemical parameters in the CSF had a relatively low diagnostic value. Antibodies in the CSF were dominant in the diagnosis of AE but those in the serum were limited in the diagnosis of anti-MOG or anti-LGI1 AE. In addition, all children showed abnormalities in EEG (72.22%) or MRI (66.67%). Methylprednisolone combined with sequential oral prednisone (83.33%) and gamma globulin (88.89%) were the dominant drugs, achieving an overall recovery rate of 72.22%. However, there were still two patients who had poor outcomes, including Patient 3 with a young age (two years old) and progressive symptom and Patient 12 with a long disease course before treatment (>120 days).
Conclusions:
The clinical manifestations of AE are varied in children. Antibody in the CSF was dominant, and EEG and MRI were instructive in the diagnosis of AE. Young age, progressive symptom, and prolonged disease course before treatment may contribute to poor outcomes.
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