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Video-polysomnography procedures for diagnosis of rapid eye movement sleep behavior disorder (RBD) and the identification of its prodromal stages: Guidelines from the International RBD Study Group

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  • Matteo Cesari
  • Anna Heidbreder
  • Erik K St Louis
  • Friederike Sixel-Döring
  • Donald L Bliwise
  • Luca Baldelli
  • Frederik Bes
  • Maria Livia Fantini
  • Alex Iranzo
  • Stine Knudsen-Heier
  • Geert Mayer
  • Stuart McCarter
  • Jiri Nepozitek
  • Milena Pavlova
  • Federica Provini
  • Joan Santamaria
  • Jun-Sang Sunwoo
  • Aleksandar Videnovic
  • Birgit Högl
  • Poul Jennum
  • Julie A E Christensen
  • Ambra Stefani
  • International RBD Study Group
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Video-polysomnography (v-PSG) is essential for diagnosing rapid eye movement (REM) sleep behavior disorder (RBD). Although there are current American Academy of Sleep Medicine standards to diagnose RBD, several aspects need to be addressed to achieve harmonization across sleep centers. Prodromal RBD is a stage in which symptoms and signs of evolving RBD are present, but do not yet meet established diagnostic criteria for RBD. However, the boundary between prodromal and definite RBD is still unclear. As a common effort of the Neurophysiology Working Group of the International RBD Study Group, this manuscript addresses the need for comprehensive and unambiguous v-PSG recommendations to diagnose RBD and identify prodromal RBD. These include: (1) standardized v-PSG technical settings; (2) specific considerations for REM sleep scoring; (3) harmonized methods for scoring REM sleep without atonia; (4) consistent methods to analyze video and audio recorded during v-PSGs and to classify movements and vocalizations; (5) clear v-PSG guidelines to diagnose RBD and identify prodromal RBD. Each section follows a common template: The current recommendations and methods are presented, their limitations are outlined, and new recommendations are described. Finally, future directions are presented. These v-PSG recommendations are intended for both practicing clinicians and researchers. Classification and quantification of motor events, RBD episodes and vocalizations are however intended for research purposes only. These v-PSG guidelines will allow collection of homogeneous data, providing objective v-PSG measures and making future harmonized multicentric studies and clinical trials possible.

Original languageEnglish
Article numberzsab257
JournalSleep
Volume45
Issue number3
Number of pages20
ISSN1550-9109
DOIs
Publication statusPublished - 14 Mar 2022

Bibliographical note

© Sleep Research Society 2021. Published by Oxford University Press on behalf of the Sleep Research Society. All rights reserved. For permissions, please email: journals.permissions@oup.com.

    Research areas

  • IRBDSG, iRBD, RWA, iRWA, prodromal RBD, PSG

ID: 72156688