Evidence map›Paper›PMID 34000237›Full record

ReviewThe Lancet. Respiratory medicine2021

A tricompartmental model of lung oxygenation disruption to explain pulmonary and systemic pathology in severe COVID-19.

Dennis McGonagle, Charlie Bridgewood, James F M Meaney

Open access · bronzeAbstract readReview
In one paragraph

Review in The Lancet. Respiratory medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 2 pooled it
3.3field-weighted citation impact, top 6% 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

29 citing papers in PubMed, 2 syntheses or guidelines pooled it, 57 citations in OpenAlex.

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  13. Intrapulmonary Bronchopulmonary Anastomoses in Severe COVID-19-related Acute Respiratory Failure.American journal of respiratory and critical care medicine · 2022
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 3 institutions in 2 countries.

Dennis McGonagleLeeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, UK; National Institute for Health Research Leeds Biomedical Research Centre, Leeds Teaching Hospitals, Leeds, UK. Electronic address: d.g.mcgonagle@leeds.ac.uk.
Charlie BridgewoodLeeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, UK.
James F M MeaneyDepartment of Radiology and Thomas Mitchell Centre for Advanced Medical Imaging, St James Hospital and Trinity College Dublin, Dublin, Ireland. Electronic address: jmeaney@tcd.ie.
NIHR Leeds Musculoskeletal Biomedical Research Unit · GBTrinity College Dublin · IEUniversity of Leeds · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The emergent 21st century betacoronaviruses, including SARS-CoV-2, lead to clinicopathological manifestations with unusual features, such as early-onset chest pain, pulmonary infarction, and pulmonary and systemic thromboembolism that is pathologically linked to extensive capillary, arteriolar, and venular thrombosis. Early ground glass opacities detected by CT, which are reminiscent of lung infarcts associated with pulmonary embolism, point to a novel vascular pathology in COVID-19. Under physiological conditions, normal parenchymal oxygenation is maintained by three sources: the alveolus itself and dual oxygen supply from the pulmonary and bronchial artery circulations. We propose a model in which these three components are disrupted in COVID-19 pneumonia, with severe viral alveolitis and concomitant immunothrombotic obstruction of the pulmonary and bronchiolar circulation. Tricompartmental disruption might have two main consequences: systemic clot embolisation from pulmonary vein territory immunothrombosis, and alveolar-capillary barrier disruption with systemic access of thrombogenic viral material. Our model encompasses the known pathological and clinical features of severe COVID-19, and has implications for understanding patient responses to immunomodulatory therapies, which might exert an anti-inflammatory effect within the vascular compartments.

Indexed as

COVID-19LungHumansModels, BiologicalOxygen ConsumptionPulmonary CirculationPulmonary EmbolismSARS-CoV-2

Identifiers

PMID34000237
PMCPMC8121498
OpenAlexW3161047957

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.