Evidence map›Paper›PMID 33544218›Full record

ArticleJournal of neurology2021

Effects of Levodopa on quality of sleep and nocturnal movements in Parkinson's Disease.

Eva Schaeffer, Thomas Vaterrodt, Laura Zaunbrecher, Inga Liepelt-Scarfone, Kirsten Emmert, Benjamin Roeben, Morad Elshehabi, Clint Hansen, Sara Becker, Susanne Nussbaum and 4 more

Open access · hybridAbstract read
In one paragraph

Article in Journal of neurology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.0field-weighted citation impact, top 12% 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

19 citing papers in PubMed, 22 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
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  5. Review
  6. Update on sleep disorders in advanced Parkinson's disease: a narrative review.Journal of neural transmission (Vienna, Austria : 1996) · 2025
    Review
  7. Article
  8. Article
  9. Article
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  11. Characterization of Sleep Structure and Autonomic Dysfunction in REM Sleep Behavior Disorder.IEEE open journal of engineering in medicine and biology · 2024
    Article
  12. Effect ofFrontiers in pharmacology · 2024
    Article
  13. Article
  14. Article
  15. Management of Sleep Disturbances in Parkinson's Disease.Journal of Parkinson's disease · 2022
    Review
  16. Article
  17. Article
  18. Article
  19. Article
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

14 authors at 4 institutions in 1 country.

Eva SchaefferDepartment of Neurology, Christian-Albrecht-University Kiel, Arnold-Heller-Straße 3, Kiel, Germany. eva.schaeffer@uksh.de.ORCID http://orcid.org/0000-0002-0792-4383
Thomas VaterrodtDepartment for Neurology, SHG-Kliniken Sonnenberg, Saarbrücken, Germany.
Laura ZaunbrecherDepartment of Neurodegeneration, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany.
Inga Liepelt-ScarfoneDepartment of Neurodegeneration, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany.
Kirsten EmmertDepartment of Neurology, Christian-Albrecht-University Kiel, Arnold-Heller-Straße 3, Kiel, Germany.
Benjamin RoebenDepartment of Neurodegeneration, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany.
Morad ElshehabiDepartment of Neurology, Christian-Albrecht-University Kiel, Arnold-Heller-Straße 3, Kiel, Germany.
Clint HansenDepartment of Neurology, Christian-Albrecht-University Kiel, Arnold-Heller-Straße 3, Kiel, Germany.
Sara BeckerDepartment of Neurodegeneration, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany.
Susanne NussbaumDepartment of Neurodegeneration, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany.
Jan-Hinrich BuschDepartment of Neurodegeneration, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany.
Matthis SynofzikDepartment of Neurodegeneration, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany.
Daniela BergDepartment of Neurology, Christian-Albrecht-University Kiel, Arnold-Heller-Straße 3, Kiel, Germany.
Walter MaetzlerDepartment of Neurology, Christian-Albrecht-University Kiel, Arnold-Heller-Straße 3, Kiel, Germany.
Christian-Albrechts-Universität zu Kiel · DEHertie Institute for Clinical Brain Research · DEGerman Center for Neurodegenerative Diseases · DESonneberg Observatory · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSleep disturbances are common in Parkinson's Disease (PD), with nocturnal akinesia being one of the most burdensome. Levodopa is frequently used in clinical routine to improve nocturnal akinesia, although evidence is not well proven.

methodsWe assessed associations of Levodopa intake with quality of sleep and perception of nocturnal akinesia in three PD cohorts, using the Parkinson's Disease Sleep Scale (PDSS-2) in two cohorts and a question on nocturnal immobility in one cohort. In one cohort also objective assessment of mobility during sleep was performed, using mobile health technology.

resultsIn an independent analysis of all three cohorts (in total n = 1124 PD patients), patients taking Levodopa CR reported a significantly higher burden by nocturnal akinesia than patients without Levodopa. Higher Levodopa intake and MDS-UPDRS part IV scores (indicating motor fluctuations) predicted worse PDSS-2 and higher subjective nocturnal immobility scores, while disease duration and severity were not predictive. Levodopa intake was not associated with objectively changed mobility during sleep.

conclusionOur results showed an association of higher Levodopa intake with perception of worse quality of sleep and nocturnal immobility in PD, indicating that Levodopa alone might not be suitable to improve subjective feeling of nocturnal akinesia in PD. In contrast, Levodopa intake was not relevantly associated with objectively measured mobility during sleep. PD patients with motor fluctuations may be particularly affected by subjective perception of nocturnal mobility. This study should motivate further pathophysiological and clinical investigations on the cause of perception of immobility during sleep in PD.

Indexed as

Parkinson DiseaseSleep Wake DisordersAntiparkinson AgentsHumansLevodopaMovementSleepAntiparkinson AgentsLevodopaHypokinesiaLevodopaParkinson DiseaseSleep

Identifiers

PMID33544218
PMCPMC8216994
OpenAlexW3127957401

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.