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A Simple Cell-based Immunofluorescence Assay to Detect Autoantibody Against the N-Methyl-D-Aspartate (NMDA) Receptor in Blood
07:20

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Anti-N-methyl D-aspartate receptor encephalitis in childhood

Felippe Borlot1, Mara Lucia F Santos, Marcia Bandeira

  • 1Hospital Santa Marcelina, São Paulo, Brazil. felippe@dfvneuro.com.br

Jornal De Pediatria
|March 30, 2012
PubMed

Insights

Pediatricians should consider anti-N-methyl-D-aspartate receptor (NMDAr) encephalitis in children presenting with neuropsychiatric and movement disorders. Early diagnosis and immunosuppression can lead to significant neurological recovery.

Area of Science:

  • Neurology
  • Immunology
  • Pediatrics

Background:

  • Encephalitis diagnosis often focuses on infectious causes.
  • Anti-N-methyl-D-aspartate receptor (NMDAr) encephalitis is a treatable autoimmune condition.
  • Recognizing NMDAr encephalitis in children is crucial for timely intervention.

Observation:

  • Three pediatric patients exhibited initial neuropsychiatric symptoms (personality change, anxiety, confusion, speech regression) followed by encephalopathy and movement disorders (choreoathetoid/dystonic).
  • NMDAr antibodies were detected in serum and cerebrospinal fluid after excluding infectious etiologies.
  • Neoplasm screening was negative in these pediatric cases.

Findings:

  • Clinical presentation of anti-NMDAr encephalitis in children mirrors adult cases.
  • Immunosuppressive therapy resulted in full neurological recovery for two patients.
  • One patient experienced residual mild dystonic posture.

Implications:

  • Anti-NMDAr encephalitis should be considered in the differential diagnosis of pediatric encephalitis.
  • Pediatricians must be aware of this treatable autoimmune disorder.
  • Prompt diagnosis and treatment can improve neurological outcomes in children with NMDAr encephalitis.
Abstract

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