Evidence map›Paper›PMID 28761996›Full record

ArticleJournal of clinical monitoring and computing2018

Discrepancy between in vivo and in vitro comparisons of forced oscillation devices.

Sabine C Zimmermann, Joanna C Watts, Amy Bertolin, Kanika Jetmalani, Gregory G King, Cindy Thamrin

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Journal of clinical monitoring and computing, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

14 citing papers in PubMed, 31 citations in OpenAlex.

  1. Trial
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Lung Function Assessment by Impulse Oscillometry in Adults.Therapeutics and clinical risk management · 2020
    Review
  9. Article
  10. Article
  11. Dismantling airway disease with the use of new pulmonary function indices.European respiratory review : an official journal of the European Respiratory Society · 2019
    Review
  12. Article
  13. Article
  14. 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

6 authors at 1 institution in 1 country.

Sabine C ZimmermannWoolcock Institute of Medical Research, University of Sydney, Sydney, Australia. sabine.zimmermann@sydney.edu.au.
Joanna C WattsWoolcock Institute of Medical Research, University of Sydney, Sydney, Australia.
Amy BertolinWoolcock Institute of Medical Research, University of Sydney, Sydney, Australia.
Kanika JetmalaniWoolcock Institute of Medical Research, University of Sydney, Sydney, Australia.
Gregory G KingWoolcock Institute of Medical Research, University of Sydney, Sydney, Australia.
Cindy ThamrinWoolcock Institute of Medical Research, University of Sydney, Sydney, Australia.ORCID http://orcid.org/0000-0003-3284-3558
The University of Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The forced oscillation technique (FOT) is an emerging clinical lung function test, with commercial devices becoming increasingly available. However comparability across existing devices has not been established. We evaluated in vivo and in vitro measurements made using three commercial devices against a custom-built device (WIMR): Resmon Pro Diary (Restech srl, Italy), tremoFlo C-100 (Thorasys Medical Systems, Canada), Jaeger Masterscope CT IOS (CareFusion, Hoechberg, Germany). Respiratory system resistance Rrs and reactance Xrs at 5 Hz were examined in twelve healthy subjects (mean age 33 ± 11 years, 7 males), and in two test standards of known resistance and reactance. Subjects performed three measurements during tidal breathing on the four devices in random order. Total, inspiratory and expiratory Rrs and Xrs were calculated and compared using one-way repeated measures ANOVA and Bonferroni post-hoc tests. Rrs did not differ between devices, with <10% deviation from predicted, except for the IOS device. With Xrs, similar values were seen between the WIMR and Resmon devices and between the tremoFlo and IOS devices. No differences were observed using test standards; deviation from theoretical value was <2% for resistance and <5% for reactance. The WIMR, tremoFlo and Resmon Pro but not IOS devices measure similar Rrs, whereas there was more disparity across devices in the estimation of Xrs parameters. The discrepancy between in vivo and in vitro measurements suggest that FOT validation procedures need to take into account the breathing pattern, either using biological controls or a breathing model.

Indexed as

Equipment DesignAdultFemaleHealthy VolunteersHumansIn Vitro TechniquesMaleMonitoring, PhysiologicOscillometryReproducibility of ResultsRespirationRespiratory Function TestsSignal Processing, Computer-AssistedSoftwareYoung AdultAirway physiologyForced oscillation techniqueMonitoringPulmonary function testingResistance

Identifiers

PMID28761996
OpenAlexW2742159658

What OpenQuestion holds

Textmetadata
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.