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dc.contributor.authorMartínez Redondo, Javier
dc.contributor.authorComas Rodríguez, Carles
dc.contributor.authorPujol Salud, Jesús
dc.contributor.authorCrespo Pons, Montserrat
dc.contributor.authorGarcía Serrano, Cristina
dc.contributor.authorOrtega Bravo, Marta
dc.contributor.authorPalacín Peruga, Jose María
dc.description.abstractBackground: The COVID-19 pandemic rapidly strained healthcare systems worldwide. The reference standard for diagnosis is a positive reverse transcription polymerase chain reaction (RTPCR) test, but results are not immediate and sensibility is variable. Aim: To evaluate the diagnostic accuracy of lung ultrasound compared to chest X-ray for COVID-19 pneumonia. Design and Setting: A retrospective analysis of symptomatic patients admitted into one primary care centre in Spain between March and September 2020. Method: Patients’ 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. Results: Most 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%) (p < 0.001), but lower specificity (71%) than the chest X-ray (54.02% and 86%, respectively) (p = 0.008) for identifying interstitial lung disease. Moreover, sensitivity of the lung ultrasound for severe interstitial disease was 100%, and was significantly higher than the chest X-ray (58.33%) (p = 0.002). Conclusion: The 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.ca_ES
dc.description.sponsorshipThe APC was funded by Consell Comarcal de la Noguera, Balaguer, Spain and Institut Universitari d’Investigació en Atenció Primària (IDIAP Jordi Gol), Barcelona, Spain.ca_ES
dc.relation.isformatofReproducció del document publicat a
dc.relation.ispartofInternational Journal of Environmental Research and Public Health, 2021, vol. 18, núm. 7, p. 3481ca_ES
dc.rightscc-by (c) Martínez Redondo et al., 2021ca_ES
dc.subjectGeneral practiceca_ES
dc.subjectLung ultrasonographyca_ES
dc.subjectThoracic radiographyca_ES
dc.titleHigher Accuracy of Lung Ultrasound over Chest X-ray for Early Diagnosis of COVID-19 Pneumoniaca_ES

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cc-by (c) Martínez Redondo et al., 2021
Except where otherwise noted, this item's license is described as cc-by (c) Martínez Redondo et al., 2021