Evidence map›Paper›PMID 36435803›Full record

ArticleJournal of translational medicine2022

Unilateral acute lung injury in pig: a promising animal model.

Johannes Geilen, Matthias Kainz, Bernhard Zapletal, Silvana Geleff, Wilfried Wisser, Barbara Bohle, Thomas Schweiger, Marcus J Schultz, Edda Tschernko

Open access · goldAbstract read
In one paragraph

Article in Journal of translational medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.2field-weighted citation impact, top 20% 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

8 citing papers in PubMed, 8 citations in OpenAlex.

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  8. A body map of super-enhancers and their function in pig.Frontiers in veterinary science · 2023
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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

9 authors at 3 institutions in 2 countries.

Johannes GeilenDivision of Cardiothoracic and Vascular Anesthesia & Critical Care Medicine, Department of Anesthesia, General Intensive Care and Pain Management, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.
Matthias KainzDivision of Cardiothoracic and Vascular Anesthesia & Critical Care Medicine, Department of Anesthesia, General Intensive Care and Pain Management, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.
Bernhard ZapletalDivision of Cardiothoracic and Vascular Anesthesia & Critical Care Medicine, Department of Anesthesia, General Intensive Care and Pain Management, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria.
Silvana GeleffDepartment of Pathology, Medical University of Vienna, Vienna, Austria.
Wilfried WisserDepartment of Cardiac Surgery, Medical University of Vienna, Vienna, Austria.
Barbara BohleDepartment of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria.
Thomas SchweigerDepartment of Thoracic Surgery, Medical University of Vienna, Vienna, Austria.
Marcus J SchultzDepartment of Intensive Care, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
Edda TschernkoDivision of Cardiothoracic and Vascular Anesthesia & Critical Care Medicine, Department of Anesthesia, General Intensive Care and Pain Management, Medical University of Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria. edda.tschernko@meduniwien.ac.at.ORCID 0000-0002-4074-2266
Medical University of Vienna · ATAmsterdam UMC Location University of Amsterdam · NLVienna General Hospital · AT

Funding

Austrian Science Fund FWF P 32953Austrian Science Fund FWF P32953
6 · The paper itself

Abstract

backgroundAcute lung injury (ALI) occurs in 23% unilateral. Models of unilateral ALI were developed and used previously without clearly demonstrating the strictly unilateral nature and severity of lung injury by the key parameters characterizing ALI as defined by the American Thoracic Society (ATS). Thus, the use of unilateral ALI remained rare despite the innovative approach. Therefore, we developed a unilateral model of ALI and focused on the crucial parameters characterizing ALI. This model can serve for direct comparisons between the injured and intact lungs within single animals, thus, reducing the number of animals required for valid experimental conclusions.

methodsWe established the model in nine pigs, followed by an evaluation of key parameters in six pigs (main study). Pigs were ventilated using an adapted left double-lumen tube for lung separation and two ventilators. ALI was induced in the left lung with cyclic rinsing (NaCl 0.9% + Triton® X-100), after which pigs were ventilated for different time spans to test for the timing of ALI onset. Ventilatory and metabolic parameters were evaluated, and bronchoalveolar lavage (BAL) was performed for measurements of inflammatory mediators. Finally, histopathological specimens were collected and examined in respect of characteristics defining the lung injury score (LIS) as suggested by the ATS.

resultsAfter adjustments of the model (n = 9) we were able to induce strictly left unilateral ALI in all six pigs of the evaluation study. The median lung injury score was 0.72 (IQR 0.62-0.79) in the left lung vs 0.14 (IQR 0.14-0.16; p < 0.05) in the right lung, confirming unilateral ALI. A significant and sustained drop in pulmonary compliance (C

conclusionsWe established a model of unilateral ALI in pigs, confirmed by histopathology, and typical changes in respiratory mechanics and an inflammatory response. This thoroughly evaluated model could serve as a basis for future studies and for comparing pathophysiological and pharmacological changes in the uninjured and injured lung within the same animal.

Indexed as

Acute Lung InjuryAnimalsBronchoalveolar LavageBronchoalveolar Lavage FluidDisease Models, AnimalLungSwineUnited StatesAcute lung injuryLarge animal modelUnilateral mechanical ventilation

Identifiers

PMID36435803
PMCPMC9701381
OpenAlexW4310295584

What OpenQuestion holds

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LicenceCC BY
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.