Evidence map›Paper›PMID 35243617›Full record

Observational studyAnaesthesia2022

Cardiovascular subphenotypes in patients with COVID-19 pneumonitis whose lungs are mechanically ventilated: a single-centre retrospective observational study.

M Chotalia, M Ali, J E Alderman, J M Patel, D Parekh, M N Bangash

Open access · hybridAbstract readObservational Study
In one paragraph

Observational study in Anaesthesia, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
4.4field-weighted citation impact, top 4% 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

21 citing papers in PubMed, 31 citations in OpenAlex.

  1. Review
  2. Right ventricular-protective ventilation in acute respiratory distress syndrome: phenotypes, monitoring and ventilatory management.European respiratory review : an official journal of the European Respiratory Society · 2026
    Review
  3. Review
  4. Article
  5. Article
  6. Evaluation and Management of Sepsis in Pulmonary Hypertension.Journal of intensive care medicine · 2025
    Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Review
  16. The impact of COVID-19 and COVID vaccination on cardiovascular outcomes.European heart journal supplements : journal of the European Society of Cardiology · 2023
    Article
  17. Review
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

M ChotaliaDepartment of Anaesthesia and Critical Care Medicine, Queen Elizabeth Hospital, Birmingham, UK.
M AliDepartment of Anaesthesia and Critical Care Medicine, Queen Elizabeth Hospital, UK.
J E AldermanDepartment of Anaesthesia and Critical Care Medicine, Queen Elizabeth Hospital, UK.
J M PatelDepartment of Anaesthesia and Critical Care Medicine, Queen Elizabeth Hospital, UK.
D ParekhDepartment of Anaesthesia and Critical Care Medicine, Queen Elizabeth Hospital, UK.
M N BangashDepartment of Anaesthesia and Critical Care Medicine, Queen Elizabeth Hospital, UK.
Queen Elizabeth Hospital · GBQueen Elizabeth Hospital Birmingham · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Unsupervised clustering methods of transthoracic echocardiography variables have not been used to characterise circulatory failure mechanisms in patients with COVID-19 pneumonitis. We conducted a retrospective, single-centre cohort study in ICU patients with COVID-19 pneumonitis whose lungs were mechanically ventilated and who underwent transthoracic echocardiography between March 2020 and May 2021. We performed latent class analysis of echocardiographic and haemodynamic variables. We characterised the identified subphenotypes by comparing their clinical parameters, treatment responses and 90-day mortality rates. We included 305 patients with a median (IQR [range]) age 59 (49-66 [16-83]) y. Of these, 219 (72%) were male, 199 (65%) had moderate acute respiratory distress syndrome and 113 (37%) did not survive more than 90 days. Latent class analysis identified three cardiovascular subphenotypes: class 1 (52%; normal right ventricular function); class 2 (31%; right ventricular dilation with mostly preserved systolic function); and class 3 (17%; right ventricular dilation with systolic impairment). The three subphenotypes differed in their clinical characteristics and response to prone ventilation and outcomes, with 90-day mortality rates of 22%, 42% and 73%, respectively (p < 0.001). We conclude that the identified subphenotypes aligned with right ventricular pathophysiology rather than the accepted definitions of right ventricular dysfunction, and these identified classifications were associated with clinical outcomes.

Indexed as

COVID-19Cohort StudiesFemaleHumansLungMaleMiddle AgedRespiration, ArtificialRetrospective Studiesacute respiratory distress syndromeright ventricular dysfunctionright ventricular failuretransthoracic echocardiography

Identifiers

PMID35243617
PMCPMC9314994
OpenAlexW4214855482

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.