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Review
. 2021 Oct-Dec;68(4):251-263.
doi: 10.29262/ram.v68i4.953.

[Neuropsychiatric aspects of anti-NMDA receptor encephalitis]

[Article in Spanish]
Affiliations
Review

[Neuropsychiatric aspects of anti-NMDA receptor encephalitis]

[Article in Spanish]
Miguel Restrepo-Martínez et al. Rev Alerg Mex. 2021 Oct-Dec.

Abstract

Anti-N-methyl-D-aspartate (NMDA) receptor encephalitis is a potentially lethal clinical entity that belongs to the group of antibody-mediated encephalitis against synaptic proteins. It shows IgG antibodies against the NR1 subunit of the NMDA receptor (NMDA-R), which have been associated with psychiatric and neurological symptoms that develop in stages in the course of the disease. The predominance of neuropsychiatric symptoms in the early stages of the disease results in an increased number of patients that search for psychiatric evaluation as their first contact with the health system. For this reason, it is vital for physicians to recognize this entity as an important differential diagnosis in their clinical practice because, despite the severity of this condition, more than 75 % of patients achieve a substantial recovery with appropriate and timely treatment. We present a review of the literature on this disease, with special emphasis on the neuropsychiatric aspects.

La encefalitis por anticuerpos contra el receptor anti-N-metil-D-aspartato (NMDA) es una entidad clínica potencialmente letal perteneciente al grupo de las encefalitis mediadas por anticuerpos contra proteínas sinápticas. En esta se demuestran anticuerpos IgG contra el receptor de NMDA (NMDAr), asociados con síntomas psiquiátricos y neurológicos que se desarrollan por estadios en el curso de la enfermedad. El predominio de síntomas neuropsiquiátricos en las etapas tempranas provoca que un elevado porcentaje de pacientes busquen evaluación psiquiátrica como un primer contacto con el sistema de salud. Por esta razón, es vital que los médicos reconozcan esta entidad como un diagnóstico diferencial importante en la práctica clínica, puesto que, a pesar de la gravedad de esta condición, más de 75 % de los pacientes logra una recuperación sustancial con un tratamiento adecuado y oportuno. Presentamos una revisión de la literatura sobre esta enfermedad, con especial énfasis en los aspectos neuropsiquiátricos.

Keywords: Autoimmune encephalitis; Clinical presentation; NMDA-R; Neuropsychiatric symptoms.

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