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Updated: Jun 18, 2026

A Simple Cell-based Immunofluorescence Assay to Detect Autoantibody Against the N-Methyl-D-Aspartate (NMDA) Receptor in Blood
Published on: January 9, 2018
[Anti-NMDA-receptor encephalitis]
T de Broucker1, L Martinez-Almoyna
1Service de neurologie, hôpital Delafontaine, 2, rue du Dr-Delafontaine, 93200 Saint-Denis, France.
Abstract:
Anti-NMDA-receptor encephalitis has been described only recently among other causes of paraneoplastic and auto-immune limbic encephalitis. Its frequency is probably underestimated. The very characteristic clinical presentation, the severity of symptoms frequently leading to the intensive care unit, the therapeutic implications of the diagnosis whatever the cause, paraneoplastic or not and, once treated, the possibility of a full recovery or mild sequels in the majority of cases justify a surveillance either in neurology wards or in infectious, psychiatric, intensive care, or pediatric units. The authors review the history of this disease, the available epidemiological data, the characteristic clinical presentation of patients, the differential diagnosis, and the suggested treatment according to an up-to-date literature review.
Insights
Anti-NMDA-receptor encephalitis is an underdiagnosed autoimmune neurological disorder. Early diagnosis and treatment can lead to significant recovery, highlighting the need for broader clinical surveillance.
Area of Science:
- Neurology
- Immunology
- Neuroscience
Context:
- Anti-NMDA-receptor encephalitis is a recently identified autoimmune limbic encephalitis.
- Its prevalence may be underestimated in clinical practice.
- It presents with characteristic, often severe, neurological symptoms requiring intensive care.
Purpose:
- To review the history, epidemiology, clinical presentation, and diagnosis of anti-NMDA-receptor encephalitis.
- To discuss the therapeutic implications and management strategies for this condition.
- To emphasize the importance of surveillance across various medical units.
Summary:
- This review synthesizes current knowledge on anti-NMDA-receptor encephalitis, covering its historical context and epidemiological data.
- It details the distinctive clinical manifestations, differential diagnoses, and recommended treatments based on recent literature.
- The potential for full recovery or mild sequelae after treatment underscores the significance of timely diagnosis.
Impact:
- Highlights the need for increased awareness and surveillance of anti-NMDA-receptor encephalitis in neurology, infectious disease, psychiatric, and pediatric settings.
- Emphasizes that prompt diagnosis and treatment, regardless of underlying cause (paraneoplastic or autoimmune), can significantly improve patient outcomes.
- Supports the integration of diagnostic and management protocols for autoimmune encephalitis across diverse clinical units.
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