Evidence map›Paper›PMID 18180906›Full record

ArticleIntensive care medicine2008

Rats surviving injurious mechanical ventilation show reversible pulmonary, vascular and inflammatory changes.

Nicolás Nin, José A Lorente, Marta de Paula, Mariam El Assar, Susana Vallejo, Oscar Peñuelas, Pilar Fernández-Segoviano, Antonio Ferruelo, Alberto Sánchez-Ferrer, Andrés Esteban

Abstract readEvaluation Study
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In one paragraph

Article in Intensive care medicine, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed.

  1. Review
  2. TLR4 is required for macrophage efferocytosis during resolution of ventilator-induced lung injury.American journal of physiology. Lung cellular and molecular physiology · 2021
    Article
  3. Effect of low-level laser therapy on the inflammatory response in an experimental model of ventilator-induced lung injury.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2020
    Article
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  14. Review
  15. Pre-treatment with dexamethasone attenuates experimental ventilator-induced lung injury.Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors.

Nicolás NinServicio de Cuidados Intensivos and CIBER de Enfermedades Respiratorias CB06/06/0044, Instituto de Salud Carlos III, Hospital Universitario de Getafe, Carretera de Toledo, Km. 12,500, 28905 Madrid, Spain.
José A Lorente
Marta de Paula
Mariam El Assar
Susana Vallejo
Oscar Peñuelas
Pilar Fernández-Segoviano
Antonio Ferruelo
Alberto Sánchez-Ferrer
Andrés Esteban

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo describe the time course of the changes in pulmonary and vascular function, and systemic inflammation induced by injurious mechanical ventilation.

designExperimental study in an animal model of ventilator-induced lung injury.

settingAnimal research laboratory.

methodsAnesthetized male adult Sprague-Dawley rats were ventilated with VT 9 ml/kg and PEEP 5 cmH2O, or VT 35 ml/kg and zero PEEP for 1 h, and were killed. Other rats received ventilation for 1 h with high VT, to observe survival (n=36), or to be monitored and killed at different points in time (24, 72 and 168 h; n=7 in each group). Blood samples for measuring biochemical parameters were obtained. Post-mortem, a bronchoalveolar lavage (BAL) was performed, the aorta and pulmonary microvessels were isolated to examine ex-vivo vascular responses and pulmonary slices were examined (light microscopy). MEASUREMENTS AND

resultsMortality in rats ventilated with high VT was 19 of 36 (54%). Mechanical ventilation was associated with hypotension, hypoxaemia and membrane hyaline formation. AST, ALT, IL-6, MIP-2 serum and BAL fluid concentrations, as well as VEGF BAL fluid concentration, were increased in rats ventilated with high VT. Lung injury score was elevated. Aortic vascular responses to acetylcholine and norepinephrine, and microvascular responses to acetylcholine, were impaired. These changes resolved by 24-72 h.

conclusionsInjurious ventilation is associated with respiratory and vascular dysfunction, accompanied by pulmonary and systemic inflammation. The survival rate was about 50%. In survivors, most induced changes completely normalized by 24-72 h after the insult.

Indexed as

AnimalsAortaBiomarkersHemodynamicsInflammationLungMaleMicrocirculationPositive-Pressure RespirationPulmonary Gas ExchangeRandom AllocationRatsRats, Sprague-DawleyRespiratory Distress SyndromeRespiratory MechanicsSurvival AnalysisBiomarkers

Identifiers

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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.