Evidence map›Paper›PMID 30744629›Full record

ArticleRespiratory research2019

What links ventilator driving pressure with survival in the acute respiratory distress syndrome? A computational study.

Anup Das, Luigi Camporota, Jonathan G Hardman, Declan G Bates

Abstract read
In one paragraph

Article in Respiratory research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
–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

23 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
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  9. Changes in Driving Pressure vs Oxygenation as Predictor of Mortality in Moderate to Severe Acute Respiratory Distress Syndrome Patients Receiving Prone Position Ventilation.Indian journal of critical care medicine : peer-reviewed, official publication of Indian Society of Critical Care Medicine · 2024
    Article
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  11. The Impact of Mechanical Energy Assessment on Mechanical Ventilation: A Comprehensive Review and Practical Application.Medical science monitor : international medical journal of experimental and clinical research · 2023
    Review
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  19. ECCOFrontiers in medicine · 2021
    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

4 authors.

Anup DasSchool of Engineering, University of Warwick, Coventry, UK.ORCID http://orcid.org/0000-0002-2918-4208
Luigi CamporotaIntensive Care Medicine, Guy's and St Thomas' NHS Foundation Trust and Division of Asthma Allergy and Lung Biology, King's College London, London, UK.
Jonathan G HardmanQueen's Medical Centre, Nottingham University Hospitals NHS Trust and School of Medicine, University of Nottingham, Nottingham, UK.
Declan G BatesSchool of Engineering, University of Warwick, Coventry, UK. D.Bates@warwick.ac.uk.

Funding

Engineering and Physical Sciences Research Council EP/P023444/1Medical Research Council G1002017Medical Research Council MR/K019783/1
6 · The paper itself

Abstract

backgroundRecent analyses of patient data in acute respiratory distress syndrome (ARDS) showed that a lower ventilator driving pressure was associated with reduced relative risk of mortality. These findings await full validation in prospective clinical trials.

methodsTo investigate the association between driving pressures and ventilator induced lung injury (VILI), we calibrated a high fidelity computational simulator of cardiopulmonary pathophysiology against a clinical dataset, capturing the responses to changes in mechanical ventilation of 25 adult ARDS patients. Each of these in silico patients was subjected to the same range of values of driving pressure and positive end expiratory pressure (PEEP) used in the previous analyses of clinical trial data. The resulting effects on several physiological variables and proposed indices of VILI were computed and compared with data relating ventilator settings with relative risk of death.

resultsThree VILI indices: dynamic strain, mechanical power and tidal recruitment, showed a strong correlation with the reported relative risk of death across all ranges of driving pressures and PEEP. Other variables, such as alveolar pressure, oxygen delivery and lung compliance, correlated poorly with the data on relative risk of death.

conclusionsOur results suggest a credible mechanistic explanation for the proposed association between driving pressure and relative risk of death. While dynamic strain and tidal recruitment are difficult to measure routinely in patients, the easily computed VILI indicator known as mechanical power also showed a strong correlation with mortality risk, highlighting its potential usefulness in designing more protective ventilation strategies for this patient group.

Indexed as

Air PressureVentilators, MechanicalAdultAlgorithmsComputer SimulationFemaleHumansLung ComplianceMaleOxygen Inhalation TherapyPositive-Pressure RespirationProspective StudiesPulmonary AlveoliRespiratory Distress SyndromeRisk AssessmentVentilator-Induced Lung InjuryAcute respiratory distress syndromeDriving pressureDynamic strainMechanical powerMechanical ventilationTidal recruitment

Identifiers

PMID30744629
PMCPMC6371576

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Registered trials

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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.