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February 2023; 13 (1) Clinical/Scientific Note

Howl

Nightmare or REM Sleep Behavior Disorder?

Maria Jose Abenza-Abildúa, Vanesa Lores-Gutiérrez, Guadalupe Gutiérrez-Cueto, Eugenio Suárez-Gisbert, Carlos Pérez-López
First published January 18, 2023, DOI: https://doi.org/10.1212/CPJ.0000000000200093
Maria Jose Abenza-Abildúa
Neurology Department (MJA-A), Infanta Sofía University Hospital; Pneumology Department (VL-G, GG-C), Infanta Sofía University Hospital; Psychiatry Department (ES-G), Infanta Sofía University Hospital; and Neurosurgery Department (CP-L), La Paz University Hospital, Madrid, Spain.
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Vanesa Lores-Gutiérrez
Neurology Department (MJA-A), Infanta Sofía University Hospital; Pneumology Department (VL-G, GG-C), Infanta Sofía University Hospital; Psychiatry Department (ES-G), Infanta Sofía University Hospital; and Neurosurgery Department (CP-L), La Paz University Hospital, Madrid, Spain.
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Guadalupe Gutiérrez-Cueto
Neurology Department (MJA-A), Infanta Sofía University Hospital; Pneumology Department (VL-G, GG-C), Infanta Sofía University Hospital; Psychiatry Department (ES-G), Infanta Sofía University Hospital; and Neurosurgery Department (CP-L), La Paz University Hospital, Madrid, Spain.
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Eugenio Suárez-Gisbert
Neurology Department (MJA-A), Infanta Sofía University Hospital; Pneumology Department (VL-G, GG-C), Infanta Sofía University Hospital; Psychiatry Department (ES-G), Infanta Sofía University Hospital; and Neurosurgery Department (CP-L), La Paz University Hospital, Madrid, Spain.
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Carlos Pérez-López
Neurology Department (MJA-A), Infanta Sofía University Hospital; Pneumology Department (VL-G, GG-C), Infanta Sofía University Hospital; Psychiatry Department (ES-G), Infanta Sofía University Hospital; and Neurosurgery Department (CP-L), La Paz University Hospital, Madrid, Spain.
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Citation
Howl
Nightmare or REM Sleep Behavior Disorder?
Maria Jose Abenza-Abildúa, Vanesa Lores-Gutiérrez, Guadalupe Gutiérrez-Cueto, Eugenio Suárez-Gisbert, Carlos Pérez-López
Neurol Clin Pract Feb 2023, 13 (1) e200093; DOI: 10.1212/CPJ.0000000000200093

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Abstract

Objective Nightmare disorder consists of the appearance of unpleasant and vivid, repeated dreams, with a situation of discomfort and anguish on awakening. Its prevalence is 3%–4% in adults. They do not associate muscle mobilization during this phase. REM sleep behavior disorder (RSBD) is a rare parasomnia (0.5% of people older than 60 years of age), characterized by the presence of unpleasant dreams, with violent content, and vigorous movements of limbs (kicks and punches), reflecting a loss of muscle atony typical of the REM phase of sleep. Language (screams and words) can also be emitted. The same clinical manifestations of RSBD can appear in other sleep disorders. The diagnosis requires the performance of a polysomnography.

Methods We present the case of a 41-year-old man referred for vivid and unpleasant dreams, beginning in the last year, related to work stress.

Results The polysomnography showed the loss of atony in the REM phase and emission of a prolonged howl after which the patient continues in the REM phase.

Discussion Prolonged howling is a very rare symptom in sleep disorders, and very atypical in RSBD, so polysomnography is essential to confirm the diagnosis and rule out other parasomnias.

Footnotes

  • Funding information and disclosures are provided at the end of the article. Full disclosure form information provided by the authors is available with the full text of this article at Neurology.org/cp.

  • Received July 5, 2022.
  • Accepted September 7, 2022.
  • © 2023 American Academy of Neurology
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