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Early consideration of anti-NMDAR encephalitis in unexplained encephalopathy
1Department of Paediatrics, The Chinese University of Hong Kong, Shatin, Hong Kong.
Insights
Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis is increasingly recognized in children. Prompt treatment with intravenous immunoglobulin is crucial for patients presenting with subtle neurological symptoms.
Area of Science:
- Neurology
- Immunology
- Pediatrics
Background:
- Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis diagnosis has expanded with antibody identification.
- The condition is increasingly recognized in pediatric populations.
Observation:
- Younger patients with anti-NMDAR encephalitis are less likely to present with tumors.
- Common early symptoms include behavioral changes, speech problems, seizures, and abnormal movements.
- A case presented with subtle, non-specific symptoms.
Findings:
- The presented case demonstrated a prompt response to intravenous immunoglobulin therapy.
- This highlights the effectiveness of immunotherapy in specific neurological conditions.
Implications:
- Considering anti-NMDAR encephalitis is important for unexplained neurological conditions in children.
- Early diagnosis and treatment can lead to better patient outcomes.
- This expands the understanding of the clinical spectrum of anti-NMDAR encephalitis.
Abstract:
With the identification of anti-NMDAR (N-methyl-D-aspartate receptor) antibody, the spectrum of anti-NMDAR encephalitis has been expanding. The condition is also increasingly recognised in children, though younger patients are less likely to have tumours, while behavioural and speech problems, seizures, and abnormal movements are common early presenting features. Here we present yet another case with subtle, non-specific clinical symptoms that responded promptly to intravenous immunoglobulin. We believe this illustrates the importance of considering this uncommon differential diagnosis in the management of unexplained neurological conditions.
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