Syndrome catatonique précoce et encéphalite à auto-anticorps antirécepteurs-NMDA : une mise au point Early-onset catatonic syndrome and anti-NMDA receptor encephalitis: A clinical update
2015
Anti-NMDAR encephalitis is a serious central nervous system disorder, not well known, that may lead to non specific psychiatric symptoms, ranging from psychosis to catatonia. We report the case of a 15-year-old girl, without significant medical history, hospitalized in a context of first-episode psychosis, quickly followed by agitated and stuporous catatonia, with only poor response to benzodiazepine treatment. Titration of autoantibodies in the cerebrospinal fluid confirmed the diagnosis of anti-NMDAR encephalitis. Recovery was obtained thanks to corticotherapy and immunosuppressive agents. In complement to this clinical report, we propose a literature update on anti-NMDA-R encephalitis and the excitatory/inhibitory imbalance as the potential mechanism at the root of catatonia. © 2015 Elsevier Masson SAS. All rights reserved.
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