Evidence map›Paper›PMID 34815326›Full record

Observational studyRespiratory care2022

Lung Ultrasound Findings Associated With COVID-19 ARDS, ICU Admission, and All-Cause Mortality.

Caroline Espersen, Elke Platz, Kristoffer Grundtvig Skaarup, Mats Christian Højbjerg Lassen, Jannie Nørgaard Lind, Niklas Dyrby Johansen, Morten Sengeløv, Alia Saed Alhakak, Anne Bjerg Nielsen, Henning Bundgaard and 16 more

Registry-linked trialOpen access · bronzeAbstract readObservational StudyMulticenter Study
In one paragraph

Observational study in Respiratory care, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04377035 (The ECHOVID-19 Study - A Prospective Cohort Study Investigating the Acute Effect of COVID-19 on the Heart and Lung by Ultrasound), which is not on this map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 22% 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.

NCT04377035 completednot on this map

The ECHOVID-19 Study - A Prospective Cohort Study Investigating the Acute Effect of COVID-19 on the Heart and Lung by Ultrasound

TypeobservationalSponsorUniversity Hospital, Gentofte, CopenhagenRan2020 to 2021Enrolled305ConditionsCOVID-19
3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. Observational
  3. Article
  4. Lung Ultrasound in Critical Care: A Narrative Review.Diagnostics (Basel, Switzerland) · 2025
    Review
  5. Predictors of B-line count in hospitalized patients with COVID-19.Frontiers in cardiovascular medicine · 2025
    Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Observational
  12. 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

26 authors at 5 institutions in 2 countries.

Caroline EspersenCardiovascular Non-Invasive Imaging Research Laboratory, Department of Cardiology, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark.
Elke PlatzCardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.
Kristoffer Grundtvig SkaarupCardiovascular Non-Invasive Imaging Research Laboratory, Department of Cardiology, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark.
Mats Christian Højbjerg LassenCardiovascular Non-Invasive Imaging Research Laboratory, Department of Cardiology, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark.
Jannie Nørgaard LindCardiovascular Non-Invasive Imaging Research Laboratory, Department of Cardiology, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark.
Niklas Dyrby JohansenCardiovascular Non-Invasive Imaging Research Laboratory, Department of Cardiology, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark.
Morten SengeløvCardiovascular Non-Invasive Imaging Research Laboratory, Department of Cardiology, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark.
Alia Saed AlhakakCardiovascular Non-Invasive Imaging Research Laboratory, Department of Cardiology, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark.
Anne Bjerg NielsenCardiovascular Non-Invasive Imaging Research Laboratory, Department of Cardiology, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark.
Henning BundgaardDepartment of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
Christian HassagerDepartment of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
Reza JabbariDepartment of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
Jørn CarlsenDepartment of Cardiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
Ole KirkDepartment of Infectious Diseases, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
Matias Greve LindholmDepartment of Cardiology, Zealand University Hospital Roskilde, University of Copenhagen, Copenhagen, Denmark.
Ole Peter KristiansenDepartment of Cardiology, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Copenhagen, Denmark.
Olav Wendelboe NielsenDepartment of Cardiology, Bispebjerg and Frederiksberg Hospital, University of Copenhagen, Copenhagen, Denmark.
Klaus Nielsen JeschkeDepartment of Respiratory Medicine, Copenhagen University Hospital-Hvidovre, Hvidovre, Denmark.
Charlotte Suppli UlrikDepartment of Respiratory Medicine, Copenhagen University Hospital-Hvidovre, Hvidovre, Denmark.
Pradeesh SivapalanDepartment of Medicine, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark.
Gunnar GislasonCardiovascular Non-Invasive Imaging Research Laboratory, Department of Cardiology, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark.
Kasper IversenCardiovascular Non-Invasive Imaging Research Laboratory, Department of Cardiology, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark.
Jens Ulrik Stæhr JensenDepartment of Medicine, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark.
Morten SchouCardiovascular Non-Invasive Imaging Research Laboratory, Department of Cardiology, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark.
Søren Helbo SkaarupDepartment of Respiratory Medicine, Aarhus University Hospital, University of Aarhus, Aarhus, Denmark.
Tor Biering-SørensenCardiovascular Non-Invasive Imaging Research Laboratory, Department of Cardiology, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark tor.biering-soerensen@regionh.dk.
University of Copenhagen · DKGentofte Hospital · DKHvidovre Hospital · DKAarhus University Hospital · DKBrigham and Women's Hospital · US

Funding

Improving Pulmonary Congestion Assessment in Heart Failure with Preserved Ejection FractionR01HL148439 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI PLATZ, ELKE · 2020 to 2024
$2.1M
NHLBI NIH HHS R01 HL148439
6 · The paper itself

Abstract

backgroundAs lung ultrasound (LUS) has emerged as a diagnostic tool in patients with COVID-19, we sought to investigate the association between LUS findings and the composite in-hospital outcome of ARDS incidence, ICU admission, and all-cause mortality.

methodsIn this prospective, multi-center, observational study, adults with laboratory-confirmed SARS-CoV-2 infection were enrolled from non-ICU in-patient units. Subjects underwent an LUS evaluating a total of 8 zones. Images were analyzed off-line, blinded to clinical variables and outcomes. A LUS score was developed to integrate LUS findings: ≥ 3 B-lines corresponded to a score of 1, confluent B-lines to a score of 2, and subpleural or lobar consolidation to a score of 3. The total LUS score ranged from 0-24 per subject.

resultsAmong 215 enrolled subjects, 168 with LUS data and no current signs of ARDS or ICU admission (mean age 59 y, 56% male) were included. One hundred thirty-six (81%) subjects had pathologic LUS findings in ≥ 1 zone (≥ 3 B-lines, confluent B-lines, or consolidations). Markers of disease severity at baseline were higher in subjects with the composite outcome (

conclusionsPathologic findings on LUS were common a median of 3 d after admission in this cohort of non-ICU hospitalized subjects with COVID-19 and did not differ among subjects who experienced the composite outcome of incident ARDS, ICU admission, and all-cause mortality compared to subjects who did not. These findings should be confirmed in future investigations. The study is registered at Clinicaltrials.gov (NCT04377035).

Indexed as

COVID-19Respiratory Distress SyndromeAdultFemaleHumansLungMaleMiddle AgedProspective StudiesSARS-CoV-2UltrasonographyCOVID-19in-hospital outcomeslung ultrasoundrisk stratification

Identifiers

PMID34815326
PMCPMC10408365
OpenAlexW3216497918

What OpenQuestion holds

Textmetadata
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Registered trials

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.