Evidence map›Paper›PMID 22340757›Full record

ArticleEuropean journal of neurology2012

Periodic leg movements in sleep in elderly patients with Parkinsonism and Alzheimer's disease.

D L Bliwise, L M Trotti, J A Yesavage, D B Rye

Abstract read
In one paragraph

Article in European journal of neurology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.4field-weighted citation impact, top 19% 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

10 citing papers in PubMed, 34 citations in OpenAlex.

  1. Associations among sleep-disordered breathing, arousal response, and risk of mild cognitive impairment in a northern Taiwan population.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2022
    Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Melatonin for Sleep Disorders in Patients with Neurodegenerative Diseases.Current neurology and neuroscience reports · 2016
    Review
  9. Article
  10. 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

4 authors at 2 institutions in 1 country.

D L BliwiseDepartment of Neurology, Emory University School of Medicine, Atlanta, GA, USA. dbliwis@emory.edu
L M Trotti
J A Yesavage
D B Rye
Emory University · USStanford University · US

Funding

Sleep/Wake Contiuum in Lewy Body DiseaseR01NS050595 · NINDS · EMORY UNIVERSITY · PI BLIWISE, DONALD L. · 2006 to 2010
$1.7M
Biomarkers of Aging in the Bay Area Sleep CohortR01AG020269 · NIA · EMORY UNIVERSITY · PI BLIWISE, DONALD L. · 2003 to 2005
$896k
STATE-DEPENDENT MOTOR CONTROL IN NEUROLOGIC DISEASER01NS035345 · NINDS · EMORY UNIVERSITY · PI BLIWISE, DONALD L. · 1996 to 1998
–
NIA NIH HHS R01 AG020269NINDS NIH HHS NS-050595NINDS NIH HHS NS-35345NINDS NIH HHS R01 NS035345NINDS NIH HHS R01 NS050595
6 · The paper itself

Abstract

backgroundPeriodic leg movements in sleep (PLMS) are non-epileptiform, repetitive movements of the lower limbs that have been associated with apparent dopamine deficiency. We hypothesized that elderly patients with a disease characterized primarily by dopamine depletion (Parkinsonism) would have higher rates of PLMS than age-matched controls or a different neurodegenerative condition not primarily involving a hypodopaminergic state, Alzheimer's disease (AD).

methodsWe compared rates of PLMS derived from in-laboratory overnight polysomnography in patients with Parkinsonism (n = 79), AD (n = 28), and non-neurologically impaired, community-based controls (n = 187).

resultsPatients with Parkinsonism not receiving levodopa had significantly higher rates of PLMS than did patients with Parkinsonism receiving levodopa as well as higher rates than seen in AD and controls. Other medications did not appear to exert the pronounced effect of levodopa on PLMS in this Parkinsonian patient population. The symptom of leg kicking was reported more frequently in Parkinsonism and was associated with higher rates of PLMS. Caregiver reported leg kicking was unrelated to PLMS in AD.

conclusionsResults are broadly compatible with a dopaminergic hypothesis for PLMS in Parkinsonism. The clinical significance of the negative findings in patients with AD requires further investigation.

Indexed as

AgedAlzheimer DiseaseElectromyographyFemaleHumansLower ExtremityMaleMiddle AgedMovementParkinsonian DisordersPolysomnographyPsychiatric Status Rating ScalesResidence CharacteristicsRestless Legs SyndromeSeverity of Illness Index

Identifiers

PMID22340757
PMCPMC3351548
OpenAlexW1483046739

What OpenQuestion holds

Textmetadata
LicenceTDM
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.