Lung Ultrasound Score in Evaluating the Severity of Coronavirus Disease 2019 (COVID-19) Pneumonia.
Ultrasound Med Biol
; 46(11): 2938-2944, 2020 11.
Article
in English
| MEDLINE | ID: covidwho-672029
ABSTRACT
The purpose of this study is to observe the potential of lung ultrasound in evaluating the severity of coronavirus disease 2019 (COVID-19) pneumonia. Lung ultrasound was performed in ten zones of the patients' chest walls. The features of the ultrasound images were observed, and a lung ultrasound score (LUS) was recorded. The ultrasound features and scores were compared between the refractory group (PaO2/FiO2 ≤ 100 mm Hg or on extracorporeal membrane oxygenation) and the non-refractory group. The prediction value of the LUS was studied by receiver operating characteristic (ROC) curve analysis. In total, 7 patients were enrolled in the refractory group and 28 in the non-refractory group. B-line patterns and shred signs were the most common signs in all patients. Patients in the refractory group had significantly more ground-glass signs (median 6 [interquartile range {IQR}, 2.5-6.5] vs. median 0 [IQR, 0-3]), consolidation signs (median 1 [IQR, 1-1.5] vs. median 0 [IQR, 0-3]) and pleural effusions (median 5 [IQR, 1.5-6] vs. median 0 [IQR, 0-0.25]). The LUS was significantly higher in the refractory group (33.00 [IQR 27.50-34.00] vs. 25.50 [IQR 22.75-30.00]). The ROC of the LUS showed a cutoff score of 32 with a specificity of 0.893 and a sensitivity of 0.571 in diagnosing refractory respiratory failure among patients. In COVID-19 patients, lung ultrasound is a promising diagnostic tool in diagnosing patients with refractory pneumonia.
Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Pneumonia, Viral
/
Ultrasonography
/
Coronavirus Infections
Type of study:
Diagnostic study
/
Experimental Studies
/
Observational study
/
Prognostic study
Topics:
Variants
Limits:
Female
/
Humans
/
Male
/
Middle aged
Country/Region as subject:
Asia
Language:
English
Journal:
Ultrasound Med Biol
Year:
2020
Document Type:
Article
Affiliation country:
J.ultrasmedbio.2020.07.024
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