Evidence map›Paper›PMID 33257441›Full record

Observational studyBMJ open respiratory research2020

Characterisation and outcomes of ARDS secondary to pneumonia in patients with and without SARS-CoV-2: a single-centre experience.

Rahul Y Mahida, Minesh Chotalia, Joseph Alderman, Chhaya Patel, Amber Hayden, Ruchi Desai, Emily Beesley, Louise E Crowley, Marina Soltan, Mansoor Bangash and 3 more

Abstract readObservational Study
In one paragraph

Observational study in BMJ open respiratory research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 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

13 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Observational
  7. Review
  8. Article
  9. Observational
  10. Observational
  11. Review
  12. Article
  13. Article
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

13 authors.

Rahul Y MahidaBirmingham Acute Care Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK r.mahida@bham.ac.uk.ORCID http://orcid.org/0000-0003-1100-8684
Minesh ChotaliaBirmingham Acute Care Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.
Joseph AldermanBirmingham Acute Care Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.
Chhaya PatelSchool of Medical Sciences, The University of Manchester, Manchester, Manchester, UK.
Amber HaydenSchool of Medical and Dental Sciences, University of Birmingham, Birmingham, Birmingham, UK.
Ruchi DesaiSchool of Medical and Dental Sciences, University of Birmingham, Birmingham, Birmingham, UK.
Emily BeesleySchool of Medical and Dental Sciences, University of Birmingham, Birmingham, Birmingham, UK.
Louise E CrowleyBirmingham Acute Care Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.
Marina SoltanBirmingham Acute Care Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.
Mansoor BangashBirmingham Acute Care Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.
Dhruv ParekhBirmingham Acute Care Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.ORCID http://orcid.org/0000-0002-1508-8362
Jaimin PatelBirmingham Acute Care Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.
David R ThickettBirmingham Acute Care Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK.

Funding

Medical Research Council MR/N021185/1Medical Research Council MR/S002782/1
6 · The paper itself

Abstract

introductionAcute respiratory distress syndrome (ARDS) is the major cause of mortality in patients with SARS-CoV-2 pneumonia. It appears that development of 'cytokine storm' in patients with SARS-CoV-2 pneumonia precipitates progression to ARDS. However, severity scores on admission do not predict severity or mortality in patients with SARS-CoV-2 pneumonia. Our objective was to determine whether patients with SARS-CoV-2 ARDS are clinically distinct, therefore requiring alternative management strategies, compared with other patients with ARDS. We report a single-centre retrospective study comparing the characteristics and outcomes of patients with ARDS with and without SARS-CoV-2.

methodsTwo intensive care unit (ICU) cohorts of patients at the Queen Elizabeth Hospital Birmingham were analysed: SARS-CoV-2 patients admitted between 11 March and 21 April 2020 and all patients with community-acquired pneumonia (CAP) from bacterial or viral infection who developed ARDS between 1 January 2017 and 1 November 2019. All data were routinely collected on the hospital's electronic patient records.

resultsA greater proportion of SARS-CoV-2 patients were from an Asian ethnic group (p=0.002). SARS-CoV-2 patients had lower circulating leucocytes, neutrophils and monocytes (p<0.0001), but higher CRP (p=0.016) on ICU admission. SARS-CoV-2 patients required a longer duration of mechanical ventilation (p=0.01), but had lower vasopressor requirements (p=0.016). DISCUSSION: The clinical syndromes and respiratory mechanics of SARS-CoV-2 and CAP-ARDS are broadly similar. However, SARS-CoV-2 patients initially have a lower requirement for vasopressor support, fewer circulating leukocytes and require prolonged ventilation support. Further studies are required to determine whether the dysregulated inflammation observed in SARS-CoV-2 ARDS may contribute to the increased duration of respiratory failure.

Indexed as

Patient Outcome AssessmentCohort StudiesCOVID-19C-Reactive ProteinCritical CareEthnicityFemaleHumansLeukocytesMaleMiddle AgedMonocytesNeutrophilsRespiration, ArtificialRespiratory Distress SyndromeRespiratory MechanicsC-Reactive ProteinVasoconstrictor AgentsARDSpneumoniaviral infection

Identifiers

PMID33257441
PMCPMC7705425

What OpenQuestion holds

Textmetadata
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.