Evidence map›Paper›PMID 33940775›Full record

ArticleAcute and critical care2021

Airway pressure release ventilation in mechanically ventilated patients with COVID-19: a multicenter observational study.

John S Zorbas, Kwok M Ho, Edward Litton, Bradley Wibrow, Edward Fysh, Matthew H Anstey

Open access · diamondAbstract read
In one paragraph

Article in Acute and critical care, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 2 pooled it
1.6field-weighted citation impact, top 16% 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

7 citing papers in PubMed, 2 syntheses or guidelines pooled it, 12 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Review
  6. Article
  7. 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

6 authors at 4 institutions in 1 country.

John S ZorbasIntensive Care Department, Sir Charles Gairdner Hospital, Perth, Australia.
Kwok M HoIntensive Care Department, Royal Perth Hospital, Perth, Australia.
Edward LittonUniversity of Western Australia School of Medicine, Perth, Australia.
Bradley WibrowIntensive Care Department, Sir Charles Gairdner Hospital, Perth, Australia.
Edward FyshIntensive Care Department, St John of God Midland Hospital, Perth, Australia.
Matthew H AnsteyIntensive Care Department, Sir Charles Gairdner Hospital, Perth, Australia.
The University of Western Australia · AUMurdoch University · AUSir Charles Gairdner Hospital · AUSt John of God Hospital · AU

Funding

Department of Health, Government of Western Australia
6 · The paper itself

Abstract

backgroundEvidence prior to the coronavirus disease 2019 (COVID-19) pandemic suggested that, compared with conventional ventilation strategies, airway pressure release ventilation (APRV) can improve oxygenation and reduce mortality in patients with acute respiratory distress syndrome. We aimed to assess the association between APRV use and clinical outcomes among adult patients receiving mechanical ventilation for COVID-19 and hypothesized that APRV use would be associated with improved survival compared with conventional ventilation.

methodsA total of 25 patients with COVID-19 pneumonitis was admitted to intensive care units (ICUs) for invasive ventilation in Perth, Western Australia, between February and May 2020. Eleven of these patients received APRV. The primary outcome was survival to day 90. Secondary outcomes were ventilation-free survival days to day 90, mechanical complications from ventilation, and number of days ventilated.

resultsPatients who received APRV had a lower probability of survival than did those on other forms of ventilation (hazard ratio, 0.17; 95% confidence interval, 0.03-0.89; P=0.036). This finding was independent of indices of severity of illness to predict the use of APRV. Patients who received APRV also had fewer ventilator-free survival days up to 90 days after initiation of ventilation compared to patients who did not receive APRV, and survivors who received APRV had fewer ventilator-free days than survivors who received other forms of ventilation. There were no differences in mechanical complications according to mode of ventilation.

conclusionsBased on the findings of this study, we urge caution with the use of APRV in COVID-19.

Indexed as

COVID-19intensive carerespiration, artificialventilation mode, APRV

Identifiers

PMID33940775
PMCPMC8182154
OpenAlexW3159921365

What OpenQuestion holds

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LicenceCC BY-NC
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.