Evidence map›Paper›PMID 29546638›Full record

ArticleEuropean journal of applied physiology2018

Assessing breath-by-breath alveolar gas exchange: is the contiguity in time of breaths mandatory?

Valentina Cettolo, Maria Pia Francescato

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Article in European journal of applied physiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
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

9 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Current definitions of the breathing cycle in alveolar breath-by-breath gas exchange analysis.American journal of physiology. Regulatory, integrative and comparative physiology · 2023
    Review
  7. Interchangeability between two breath-by-breath OEuropean journal of applied physiology · 2020
    Article
  8. Article
  9. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors.

Valentina CettoloDepartment of Medicine, University of Udine, P.le Kolbe 4, 33100, Udine, Italy.
Maria Pia FrancescatoDepartment of Medicine, University of Udine, P.le Kolbe 4, 33100, Udine, Italy. mariapia.francescato@uniud.it.ORCID http://orcid.org/0000-0002-7892-863X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeA new algorithm is illustrated for the determination of breath-by-breath alveolar gas exchange that neglects the contiguity in time of breaths, i.e. it allows the breaths to be partially superimposed or disjoined in time.

methodsTraces of oxygen, carbon dioxide fractions, and ventilatory flow were recorded continuously over 20 min in 15 healthy subjects in resting conditions; at 5-min intervals, subjects voluntarily hyperventilated for ~ 30 s to induce abrupt changes in lung gas stores. Gas exchange data were calculated applying the new algorithm and were compared to those yielded by a reference algorithm, also providing values at the alveolar level.

resultsAverage O

conclusionThe new algorithm, which assumes each breath as the leading subject, was able to effectively account for changes in lung gas stores without requiring any predetermined value or off-line optimisation procedure.

Indexed as

AlgorithmsInhalationPulmonary Gas ExchangeAdultFemaleHumansMaleMiddle AgedOxygen ConsumptionTimeHyperventilationOxygen uptakeRespiratory cycle

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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.