Evidence map›Paper›PMID 33801638›Full record

ArticleInternational journal of environmental research and public health2021

Higher Accuracy of Lung Ultrasound over Chest X-ray for Early Diagnosis of COVID-19 Pneumonia.

Javier Martínez Redondo, Carles Comas Rodríguez, Jesús Pujol Salud, Montserrat Crespo Pons, Cristina García Serrano, Marta Ortega Bravo, Jose María Palacín Peruga

Open access · goldAbstract read
In one paragraph

Article in International journal of environmental research and public health, 2021. 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
3.5field-weighted citation impact, top 7% 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.

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  10. Point-of-Care Ultrasound for Earlier Detection of Pediatric Pneumonia.Clinical practice and cases in emergency medicine · 2024
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  11. Article
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  14. COVID-19 pneumonia: lessons learned, challenges, and preparing for the future.Diagnostic and interventional radiology (Ankara, Turkey) · 2022
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  20. The Risk of Hospitalization in COVID-19 Patients Can Be Predicted by Lung Ultrasound in Primary Care.International journal of environmental research and public health · 2021
    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

7 authors at 3 institutions in 1 country.

Javier Martínez RedondoBalaguer Primary Care Center, Institut Català de la Salut (ICS), 25600 Lleida, Spain.
Carles Comas RodríguezDepartment of Mathematics, Campus Cappont, University of Lleida, 25001 Lleida, Spain.
Jesús Pujol SaludBalaguer Primary Care Center, Institut Català de la Salut (ICS), 25600 Lleida, Spain.
Montserrat Crespo PonsBalaguer Primary Care Center, Institut Català de la Salut (ICS), 25600 Lleida, Spain.
Cristina García SerranoBalaguer Primary Care Center, Institut Català de la Salut (ICS), 25600 Lleida, Spain.
Marta Ortega BravoResearch Group in Therapies in Primary Care (GRETAPS), 25007 Lleida, Spain.ORCID 0000-0002-0765-6841
Jose María Palacín PerugaOnze de Setembre Primary Care Center, Institut Català de la Salut (ICS), Passeig Onze de Setembre, 10, 25005 Lleida, Spain.
Institut Català de la Salut · ESUniversitat de Lleida · ESInstitut Universitari d'Investigació en Atenció Primària Jordi Gol · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe COVID-19 pandemic rapidly strained healthcare systems worldwide. The reference standard for diagnosis is a positive reverse transcription polymerase chain reaction (RT-PCR) test, but results are not immediate and sensibility is variable.

aimTo evaluate the diagnostic accuracy of lung ultrasound compared to chest X-ray for COVID-19 pneumonia. DESIGN AND

settingA retrospective analysis of symptomatic patients admitted into one primary care centre in Spain between March and September 2020.

methodPatients' chest X-rays and lung ultrasounds were categorized as normal or pathologic. RT-PCR confirmed COVID-19 infection. Pathologic lung ultrasound images were further categorized as showing either local or diffuse interstitial disease. McNemar and Fisher tests were used to compare diagnostic accuracy.

resultsMost of the 212 patients presented fever at admission, either as a standalone symptom (37.74% of patients) or together with others (72.17% of patients). The positive predictive value of the lung ultrasound was 90% for the diffuse interstitial pattern and 46.92% for local pattern. The lung ultrasound had a significantly higher sensitivity (82.75%) (

conclusionThe lung ultrasound is more accurate than the chest X-ray for identifying patients with COVID-19 pneumonia and it is especially useful for those presenting diffuse interstitial disease.

Indexed as

COVID-19PandemicsEarly DiagnosisHumansLungRetrospective StudiesSARS-CoV-2Sensitivity and SpecificitySpainTomography, X-Ray ComputedX-RaysCOVID-19general practicelung ultrasonographythoracic radiography

Identifiers

PMID33801638
PMCPMC8037158
OpenAlexW3141743484

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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.