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Hypersomnolence Disorder

Akachimere Uzosike, David Neubauer, M.D.
Hypersomnolence Disorder is a topic covered in the Johns Hopkins Psychiatry Guide.

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  • Hypersomnolence disorder is characterized by repeated excessive sleepiness after at least seven hours of a main sleep period.
    • In other words, repeated excessive sleepiness despite getting at least seven hours of sleep.
  • Individuals with hypersomnolence and cataplexy are diagnosed with narcolepsy, as are hypersomnolent patients with specific sleep testing results.
  • Hypersomnolence disorder is considered a sleep-wake disorder in DSM-5[1]

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Last updated: November 22, 2017


Uzosike, Akachimere, and David Neubauer. "Hypersomnolence Disorder." Johns Hopkins Psychiatry Guide, 2017. Johns Hopkins Guide, www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Psychiatry_Guide/787084/all/Hypersomnolence_Disorder.
Uzosike A, Neubauer D. Hypersomnolence Disorder. Johns Hopkins Psychiatry Guide. 2017. https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Psychiatry_Guide/787084/all/Hypersomnolence_Disorder. Accessed July 18, 2019.
Uzosike, A., & Neubauer, D. (2017). Hypersomnolence Disorder. In Johns Hopkins Psychiatry Guide. Available from https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Psychiatry_Guide/787084/all/Hypersomnolence_Disorder
Uzosike A, Neubauer D. Hypersomnolence Disorder [Internet]. In: Johns Hopkins Psychiatry Guide. ; 2017. [cited 2019 July 18]. Available from: https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Psychiatry_Guide/787084/all/Hypersomnolence_Disorder.
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TY - ELEC T1 - Hypersomnolence Disorder ID - 787084 A1 - Uzosike,Akachimere, AU - Neubauer,David,M.D. Y1 - 2017/11/22/ BT - Johns Hopkins Psychiatry Guide UR - https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Psychiatry_Guide/787084/all/Hypersomnolence_Disorder DB - Johns Hopkins Guide DP - Unbound Medicine ER -