Evidence map›Paper›PMID 34665518›Full record

Observational studyThe clinical respiratory journal2022

The role of ventilatory support for long-term outcomes after critical infection with COVID-19: A prospective cohort study.

Gabriel Hanna, Sara Bankler, Anna Schandl, Mari Roël, Anders Hedman, Mikael Andersson Franko, Patrik Lyngå, Anne Geborek, Eva Joelsson-Alm, Mårten Söderberg and 1 more

Open access · hybridAbstract readObservational Study
In one paragraph

Observational study in The clinical respiratory journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.0field-weighted citation impact, top 21% 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

6 citing papers in PubMed, 11 citations in OpenAlex.

  1. Observational
  2. Article
  3. Article
  4. Article
  5. Review
  6. Observational
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

11 authors at 2 institutions in 1 country.

Gabriel HannaDepartment of Radiology, Södersjukhuset, Stockholm, Sweden.
Sara BanklerDepartment of Radiology, Södersjukhuset, Stockholm, Sweden.
Anna SchandlDepartment of Anesthesiology and Intensive Care, Södersjukhuset, Stockholm, Sweden.
Mari RoëlDepartment of Internal Medicine, Södersjukhuset, Stockholm, Sweden.
Anders HedmanDepartment of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, Stockholm, Sweden.
Mikael Andersson FrankoDepartment of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, Stockholm, Sweden.
Patrik LyngåDepartment of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, Stockholm, Sweden.
Anne GeborekDepartment of Internal Medicine, Södersjukhuset, Stockholm, Sweden.
Eva Joelsson-AlmDepartment of Anesthesiology and Intensive Care, Södersjukhuset, Stockholm, Sweden.ORCID https://orcid.org/0000-0002-9041-2468
Mårten SöderbergDepartment of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, Stockholm, Sweden.
Pernilla DarlingtonDepartment of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, Stockholm, Sweden.
Karolinska Institutet · SEStockholm South General Hospital · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe full range of long-term health consequences in intensive care unit (ICU) survivors with COVID-19 is unclear. This study aims to investigate the role of ventilatory support for long-term pulmonary impairment in critically ill patients and further to identify risk factors for prolonged radiological recovery.

methodsA prospective observational study from a single general hospital, including all with COVID-19 admitted to ICU between March and August 2020, investigating the association between ventilatory support and the extent of residual parenchymal changes on chest computed tomography (CT) scan and measurement of lung volumes at follow-up comparing high-flow nasal oxygen (HFNO) or non-invasive ventilation (NIV) with invasive ventilation. A semi-quantitative score (CT involvement score) based on lobar involvement and a total score for all five lobes was used to estimate residual parenchymal changes. The association was calculated with logistic regression and adjusted for age, sex, smoking, and severity of illness.

resultsAmong the 187 eligible, 86 had a chest CT scan and 76 a pulmonary function test at the follow-up with a median time of 6 months after ICU discharge. Residual lung changes were seen in 74%. The extent of pulmonary changes was similar regardless of ventilatory support, but patients with invasive ventilation had a lower total lung capacity 84% versus 92% of predicted (p < 0.001).

conclusionsThe majority of ICU-treated patients with COVID-19 had residual lung changes at 6 months of follow-up regardless of ventilator support or not, but the total lung capacity was lower in those treated with invasive ventilation.

Indexed as

COVID-19Critical IllnessHumansIntensive Care UnitsProspective StudiesSARS-CoV-2COVID-19CTfollow-up study

Identifiers

PMID34665518
PMCPMC8652938
OpenAlexW3206138350

What OpenQuestion holds

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Registered trials

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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.