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Updated: Jul 12, 2026

Induction and Clinical Scoring of Chronic-Relapsing Experimental Autoimmune Encephalomyelitis
Published on: July 4, 2007
Autoimmune encephalitis in a tertiary hospital in the Philippines
Nikolai Gil D Reyes1, Adrian I Espiritu2, Jerson F Agabao3
1Division of Adult Neurology, Department of Neurosciences, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Manila, Philippines.
Insights
Autoimmune encephalitis (AE) presents diverse symptoms in adults and children, with anti-NMDAR encephalitis being common. Early intervention improves outcomes, particularly in pediatric cases, despite limited diagnostic lab support.
Area of Science:
- Neurology
- Immunology
- Pediatrics
Background:
- Autoimmune encephalitis (AE) is an emerging neurological disorder affecting both adults and children.
- Prompt diagnosis and treatment are crucial due to AE's potentially reversible nature.
Purpose of the Study:
- To characterize the clinical and paraclinical features of AE patients.
- To evaluate treatment outcomes in a Philippine tertiary hospital setting.
Main Methods:
- Retrospective case series design.
- Inclusion of patients with definite autoimmune encephalitis.
Main Results:
- Eighteen patients (12 adults, 6 children) with a majority of anti-N-methyl-d-aspartate receptor (NMDAR) encephalitis.
- Common presentations included psychiatric symptoms and seizures; imaging was often normal. CSF pleocytosis and protein elevation showed variable results.
- High-dose steroids and IVIG were common treatments, with 66.7% overall improved outcomes, especially in children.
Conclusions:
- AE exhibits a broad clinical spectrum with shared and distinct features in adults and children.
- Laboratory investigations offer supportive but limited diagnostic value for AE.
- Early intervention is vital for AE management, influencing treatment and outcomes in the local context.
Background:
Autoimmune encephalitis (AE) is an emerging disorder in adults and children. Due to its potentially reversible nature, prompt recognition and intervention are of utmost importance.
Objective:
To describe the clinical and paraclinical features, as well as treatment outcomes of patients with AE admitted in a Philippine tertiary hospital.
Methods:
Retrospective case series of patients with definite AE.
Results:
Eighteen (18) patients were included (12 adults, 6 children), majority of whom had anti-N-methyl-d-aspartate receptor (NMDAR) encephalitis. The median age of onset was 32 (IQR: 10.8) years old and 13 (IQR: 4.8) years old in the adult and pediatric population, respectively. In both age groups, most presented with psychiatric symptoms and normal imaging findings. Cerebrospinal fluid (CSF) pleocytosis was detected in 8/12 (66.7%) adults and 2/6 (33.3%) children, while CSF protein elevation was only seen in 6/12 (50%) adults. Most patients presented with seizures, and the most frequent electroencephalography (EEG) abnormality detected was slow activity (70.5%). A high proportion of patients received high dose steroids, alone (35.3%) or in combination with intravenous immunoglobulin (IVIG, 52.9%). Overall, 66.7% had improved outcomes, mostly seen in the pediatric population.
Conclusion:
This study highlighted the broad clinical phenotype, as well as the similarities and differences of AE manifestations in adults and children. It demonstrated the limited but supportive role of laboratory investigations in the diagnosis of AE. It also underscored the importance of early intervention in AE and highlighted factors influencing treatment practices and discharge outcomes in the local setting.
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