Evidence map›Paper›PMID 37461299›Full record

ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association2024

Prodromal dementia with Lewy bodies in REM sleep behavior disorder: A multicenter study.

Stephen Joza, Michele T Hu, Ki-Young Jung, Dieter Kunz, Dario Arnaldi, Jee-Young Lee, Luigi Ferini-Strambi, Elena Antelmi, Friederike Sixel-Döring, Valérie Cochen De Cock and 17 more

Open access · hybridAbstract readMulticenter Study
In one paragraph

Article in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
8.0field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

28 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. Observational
  3. Article
  4. Observational
  5. NADAlzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Where do PDD and DLB SYNdromes fit in neuronal alpha-SYNuclein biological frameworks?Journal of neural transmission (Vienna, Austria : 1996) · 2026
    Review
  11. Article
  12. Article
  13. Article
  14. The Future of Parasomnias.Journal of sleep research · 2025
    Review
  15. Article
  16. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

27 authors at 15 institutions in 6 countries.

Stephen JozaDepartment of Neurology, Montreal Neurological Institute, Montreal, Canada.ORCID 0000-0002-5598-4110
Michele T HuNuffield Department of Clinical Neurosciences, Division of Neurology and Oxford Parkinson's Disease Centre, University of Oxford, Oxford, UK.
Ki-Young JungDepartment of Neurology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Republic of Korea.
Dieter KunzClinic for Sleep & Chronomedicine, St. Hedwig-Krankenhaus, Berlin, Germany.
Dario ArnaldiDepartment of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), Clinical Neurology, University of Genoa, Genoa, Italy.
Jee-Young LeeDepartment of Neurology, Seoul National University College of Medicine, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul, South Korea.
Luigi Ferini-StrambiSleep Disorders Center, Vita-Salute San Raffaele University, Milan, Italy.
Elena AntelmiDIMI Department of Engineering and Medicine of Innovation, University of Verona, Verona, Italy.
Friederike Sixel-DöringDepartment of Neurology and Section on Clinical Neuroscience, Philipps University Marburg, Marburg, Germany.
Valérie Cochen De CockEuroMov Digital Health in Motion, University of Montpellier, IMT Mines Ales, Montpellier, France.
Jacques Y MontplaisirCentre d'Études Avancées en Médecine du Sommeil, Hôpital du Sacré-Cœur de Montréal, Montréal, Quebec, Canada.
Jessica WelchNuffield Department of Clinical Neurosciences, Division of Neurology and Oxford Parkinson's Disease Centre, University of Oxford, Oxford, UK.
Han-Joon KimDepartment of Neurology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Republic of Korea.
Frederik BesClinic for Sleep & Chronomedicine, St. Hedwig-Krankenhaus, Berlin, Germany.
Pietro MattioliDepartment of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), Clinical Neurology, University of Genoa, Genoa, Italy.
Kyung Ah WooDepartment of Neurology, Seoul National University College of Medicine, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul, South Korea.
Sara MarelliSleep Disorders Center, Vita-Salute San Raffaele University, Milan, Italy.
Giuseppe PlazziIRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy.
Brit MollenhauerDepartment of Neurology and Section on Clinical Neuroscience, Philipps University Marburg, Marburg, Germany.
Amelie PelletierDepartment of Neurology, Montreal Neurological Institute, Montreal, Canada.
Jamil RazzaqueNuffield Department of Clinical Neurosciences, Division of Neurology and Oxford Parkinson's Disease Centre, University of Oxford, Oxford, UK.
Jun-Sang SunwooDepartment of Neurology, Kangbuk Samsung Hospital, Seoul, Republic of Korea.
Nicola GirtlerDepartment of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), Clinical Neurology, University of Genoa, Genoa, Italy.
Claudia TrenkwalderParacelsus Elena Klinik, Centre for Movement Disorders, Kassel, Germany.
Jean-François GagnonCentre d'Études Avancées en Médecine du Sommeil, Hôpital du Sacré-Cœur de Montréal, Montréal, Quebec, Canada.
Ronald B PostumaDepartment of Neurology, Montreal Neurological Institute, Montreal, Canada.
International REM Sleep Behavior Disorder Study GroupDepartment of Neurology, Montreal Neurological Institute, Montreal, Canada.
Montreal Neurological Institute and Hospital · CANuffield Orthopaedic Centre · GBOspedale Policlinico San Martino · ITPhilipps University of Marburg · DESeoul National University · KRSeoul National University Hospital · KRSt. Hedwig-Krankenhaus · DEUniversité du Québec à Montréal · CAVita-Salute San Raffaele University · ITKangbuk Samsung Hospital · KRParacelsus Elena Klinik Kassel · DEUniversité de Montpellier · FRUniversity of Genoa · ITUniversity of Modena and Reggio Emilia · ITUniversity of Verona · IT

Funding

Canadian Institutes of Health Research (CIHR)Italian Ministry of HealthMichael J. Fox FoundationNational Research Foundation of Korea (NRF) 2017M3C7A1029688National Research Foundation of Korea (NRF) 2017R1A2B2012280National Research Foundation of Korea (NRF) NRF- 2022R1A2C4001834National Research Foundation of Korea (NRF) NRF-2022R1H1A2092329Parkinson's UK and the National Institute for Health Research (NIHR) Oxford Biomedical Research Centre (BRC)
6 · The paper itself

Abstract

introductionIsolated/idiopathic rapid eye movement sleep behavior disorder (iRBD) is a powerful early predictor of dementia with Lewy bodies (DLB) and Parkinson's disease (PD). This provides an opportunity to directly observe the evolution of prodromal DLB and to identify which cognitive variables are the strongest predictors of evolving dementia.

methodsIRBD participants (n = 754) from 10 centers of the International RBD Study Group underwent annual neuropsychological assessment. Competing risk regression analysis determined optimal predictors of dementia. Linear mixed-effect models determined the annual progression of neuropsychological testing.

resultsReduced attention and executive function, particularly performance on the Trail Making Test Part B, were the strongest identifiers of early DLB. In phenoconverters, the onset of cognitive decline began up to 10 years prior to phenoconversion. Changes in verbal memory best differentiated between DLB and PD subtypes. DISCUSSION: In iRBD, attention and executive dysfunction strongly predict dementia and begin declining several years prior to phenoconversion. HIGHLIGHTS: Cognitive decline in iRBD begins up to 10 years prior to phenoconversion. Attention and executive dysfunction are the strongest predictors of dementia in iRBD. Decline in episodic memory best distinguished dementia-first from parkinsonism-first phenoconversion.

Indexed as

Cognitive DysfunctionLewy Body DiseaseParkinson DiseaseParkinsonian DisordersREM Sleep Behavior DisorderHumansdementia with Lewy bodiesevolutionParkinson's diseasepre-diagnosticprodromal stageREM sleep behavior disorder

Identifiers

PMID37461299
PMCPMC10917000
OpenAlexW4384625889

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.