ArticleJournal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine2025
Agrypnia excitata: a clinical biomarker of acute relapse in anti-N-methyl-D-aspartate receptor encephalitis.
Article in Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Sleep disorders have been described in anti-N-methyl-D-aspartate receptor encephalitis including insomnia, hypersomnia, narcolepsy, and sleep-disordered breathing. A patient presented with typical features of anti-N-methyl-D-aspartate receptor encephalitis associated with a right ovarian teratoma. After 2 months of clinical improvement with immunotherapy, the patient deteriorated. A 24-hour video electroencephalography-polysomnography revealed a severe sleep quantity deficit, a total destruction of sleep architecture consisting of short clusters of N1 and rapid eye movement sleep stages, associated with motor and autonomic hyperactivity. These features were consistent with agrypnia excitata and were associated with disease reactivation due to a left ovarian teratoma. A new course of immunotherapy and surgery improved clinical symptoms and normalized sleep patterns. Agrypnia excitata, the most severe form of status dissociatus, was a sleep biomarker of disease relapse in this patient. Polysomnographic studies in the acute phase of anti-N-methyl-D-aspartate receptor encephalitis are lacking and are needed to better understand the evolution of sleep patterns. CITATION: Jeantin L, Cousyn L, Navarro V, Nguyen-Michel V-H. Agrypnia excitata: a clinical biomarker of acute relapse in anti-N-methyl-D-aspartate receptor encephalitis.
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