Evidence map›Paper›PMID 25246315›Full record

ArticleParkinsonism & related disorders2014

Comparison of voluntary and reflex cough effectiveness in Parkinson's disease.

Karen Wheeler Hegland, Michelle S Troche, Alexandra E Brandimore, Paul W Davenport, Michael S Okun

Open access · greenAbstract readComparative Study
In one paragraph

Article in Parkinsonism & related disorders, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
10.3field-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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 51 citations in OpenAlex.

  1. Guideline
  2. Review
  3. Article
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  6. Article
  7. Review
  8. Article
  9. Dysphagia in Parkinson Disease: Part I - Pathophysiology and Diagnostic Practices.Current physical medicine and rehabilitation reports · 2023
    Article
  10. Examining the Influence of Chemosensation on Laryngeal Health and Disorders.Journal of voice : official journal of the Voice Foundation · 2023
    Review
  11. Observational
  12. Review
  13. 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

5 authors at 1 institution in 1 country.

Karen Wheeler HeglandDepartment of Speech Language and Hearing Sciences, College of Public Health and Health Professions, University of Florida, Gainesville, FL, USA; Center for Movement Disorders and Neurorestoration, College of Medicine, University of Florida, Gainesville, FL, USA. Electronic address: kwheeler@ufl.edu.
Michelle S TrocheDepartment of Speech Language and Hearing Sciences, College of Public Health and Health Professions, University of Florida, Gainesville, FL, USA; Center for Movement Disorders and Neurorestoration, College of Medicine, University of Florida, Gainesville, FL, USA.
Alexandra E BrandimoreDepartment of Speech Language and Hearing Sciences, College of Public Health and Health Professions, University of Florida, Gainesville, FL, USA; Center for Movement Disorders and Neurorestoration, College of Medicine, University of Florida, Gainesville, FL, USA.
Paul W DavenportDepartment of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA.
Michael S OkunCenter for Movement Disorders and Neurorestoration, College of Medicine, University of Florida, Gainesville, FL, USA; Department of Neurology, College of Medicine, University of Florida, Gainesville, FL, USA.
University of Florida · US

Funding

UF Clinical and Translational Science AwardUL1TR000064 · NCATS · UNIVERSITY OF FLORIDA · PI NELSON, DAVID R · 2012 to 2014
$12.2M
UF Clinical and Translational Science AwardKL2TR000065 · NCATS · UNIVERSITY OF FLORIDA · PI NELSON, DAVID R · 2012 to 2014
$1.6M
NCATS NIH HHS KL2 TR000065NCATS NIH HHS KL2TR000065NCATS NIH HHS UL1 TR000064NCATS NIH HHS UL1TR000064
6 · The paper itself

Abstract

introductionMultiple airway protective mechanisms are impacted with Parkinson's disease (PD), including swallowing and cough. Cough serves to eject material from the lower airways, and can be produced voluntarily (on command) and reflexively in response to aspirate material or other airway irritants. Voluntary cough effectiveness is reduced in PD however it is not known whether reflex cough is affected as well. The goal of this study was to compare the effectiveness between voluntary and reflex cough in patients with idiopathic PD.

methodsTwenty patients with idiopathic PD participated. Cough airflow data were recorded via facemask in line with a pneumotachograph. A side delivery port connected the nebulizer for delivery of capsaicin, which was used to induce cough. Three voluntary coughs and three reflex coughs were analyzed from each participant. A two-way repeated measures analysis of variance was used to compare voluntary versus reflex cough airflow parameters.

resultsSignificant differences were found for peak expiratory flow rate (PEFR) and cough expired volume (CEV) between voluntary and reflex cough. Specifically, both PEFR and CEV were reduced for reflex as compared to voluntary cough.

conclusionCough PEFR and CEV are indicative of cough effectiveness in terms of the ability to remove material from the lower airways. Differences between these two cough types likely reflect differences in the coordination of the respiratory and laryngeal subsystems. Clinicians should be aware that evaluation of cough function using voluntary cough tasks overestimates the PEFR and CEV that would be achieved during reflex cough in patients with PD.

Indexed as

AdultAgedAged, 80 and overCoughDeglutitionDeglutition DisordersFemaleHumansMaleMiddle AgedParkinson DiseasePeak Expiratory Flow RateReflexAirway protectionCoughParkinson's diseaseReflex coughVoluntary cough

Identifiers

PMID25246315
PMCPMC5450039
OpenAlexW2171443756

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.