Abstract
This study aimed to determine the sensitivity and specificity of ultrasound for the diagnosis of acute pulmonaryedema by meta-analysis. A systematic search was conducted through the following databases:Cochrane, PubMed, EMBASE and Ovid MEDLINE. Prospective cohort and prospective case-control studies that reportedsensitivity and specificity of lung ultrasound in diagnosis of acute pulmonary edema were selected. An independent reviewof citations was carried out for inclusion and data extraction. Quality assessment was conducted using the QUADAS-2 tool.Sensitivity and specificity were taken from the studied articles and then calculated with the contingency tables. A total of 984articles were identified but only eight studies (1301 patients) were included in this meta-analysis. One study was a case-controlstudy and seven studies were prospective cohort study. The overall sensitivity of ultrasound for the diagnosis of acutepulmonary edema is 97% (95% CI: 96%-98%) and the overall specificity was 98% (95% CI: 97%-99%). Thediagnostic test accuracy suggests that lung ultrasound using B-lines is a useful and reliable diagnostic tool for critically illpatients with acute pulmonary edema.
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