Evidence map›Paper›PMID 29228942›Full record

ArticleBMC pulmonary medicine2017

Multiple breath washout testing in adults with pulmonary disease and healthy controls - can fewer measurements eventually be more?

Frederik Trinkmann, Johannes Götzmann, Daniel Saur, Michele Schroeter, Katharina Roth, Ksenija Stach, Martin Borggrefe, Joachim Saur, Ibrahim Akin, Julia D Michels

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in BMC pulmonary medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03176745 (Determination of the Optimal Number of Multiple Breath Washout Tests in Adults With Pulmonary Disease and Healthy Controls), which is not on this map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.8field-weighted citation impact, top 23% 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.

NCT03176745 completednot on this map

Determination of the Optimal Number of Multiple Breath Washout Tests in Adults With Pulmonary Disease and Healthy Controls

TypeobservationalSponsorUniversitätsmedizin MannheimRan2015 to 2017Enrolled153ConditionsHealthy Controls, Chronic Obstructive Pulmonary Disease, Bronchial Asthma, SarcoidosisArmsmultiple breath washout
3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. 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

10 authors at 1 institution in 1 country.

Frederik Trinkmann1st Department of Medicine (Cardiology, Angiology, Pulmonary and Intensive Care), University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany. frederik.trinkmann@umm.de.ORCID http://orcid.org/0000-0001-5877-877X
Johannes Götzmann1st Department of Medicine (Cardiology, Angiology, Pulmonary and Intensive Care), University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.
Daniel Saur1st Department of Medicine (Cardiology, Angiology, Pulmonary and Intensive Care), University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.
Michele Schroeter1st Department of Medicine (Cardiology, Angiology, Pulmonary and Intensive Care), University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.
Katharina Roth1st Department of Medicine (Cardiology, Angiology, Pulmonary and Intensive Care), University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.
Ksenija Stach1st Department of Medicine (Cardiology, Angiology, Pulmonary and Intensive Care), University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.
Martin Borggrefe1st Department of Medicine (Cardiology, Angiology, Pulmonary and Intensive Care), University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.
Joachim Saur1st Department of Medicine (Cardiology, Angiology, Pulmonary and Intensive Care), University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.
Ibrahim Akin1st Department of Medicine (Cardiology, Angiology, Pulmonary and Intensive Care), University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.
Julia D Michels1st Department of Medicine (Cardiology, Angiology, Pulmonary and Intensive Care), University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.
Heidelberg University · DE

Funding

Deutsche Forschungsgemeinschaft (DFG) and Universität Heidelberg (DE) Open Access Publishing funding programmeMarkedsmodningsfonden Tilpasning af en ny lungefunktionsmälingMs. Ester Knorr private donationUniversität Heidelberg MEAMEDMA
6 · The paper itself

Abstract

backgroundMultiple breath washout (MBW) became a valuable research tool assessing ventilation heterogeneity. However, routine clinical application still faces several challenges. Deriving MBW parameters from three technically acceptable measurements according to current recommendations prolongs test times. We therefore aimed to evaluate reporting only duplicate measurements in healthy adults and pulmonary disease.

methodsOne hundred and fifty-three subjects prospectively underwent conventional lung function testing and closed-circuit SF

resultsLung clearance index (LCI) differed significantly among 19 controls (7.4 ± 0.8), 19 patients with sarcoidosis (8.1 ± 1.2), 32 with bronchial asthma (9.2 ± 1.9) and 33 with COPD (10.8 ± 2.2, p < 0.001). Within-test repeatability was high (coefficient of variation between 2.5% in controls and 3.6% in COPD) and remained unchanged when only including the first two measurements. Likewise, LCI remained stable with mean absolute changes ranging from 0.9 ± 0.8% in controls to 1.5 ± 0.9% in COPD (p = 0.1). Mean test time reduction differed significantly between groups reaching 200 s in COPD (p = 0.01).

conclusionsDuplicate SF

trial registrationNCT03176745 , June 2, 2017 retrospectively registered.

Indexed as

LungAdultAsthmaFemaleHumansMalePulmonary Disease, Chronic ObstructiveReproducibility of ResultsRespiratory Function TestsSarcoidosis, PulmonaryAdultsDuplicate measurementsLung clearance indexMultiple breath washoutPulmonary disease

Identifiers

PMID29228942
PMCPMC5725793
OpenAlexW2775609529

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.