Diagnostic Performance of Bronchoalveolar Lavage (1,3)-β-d-Glucan Assay for Pneumocystis jirovecii Pneumonia

Autor: Shiwei Zhou, Kathleen A. Linder, Carol A. Kauffman, Blair J. Richards, Steve Kleiboeker, Marisa H. Miceli
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Journal of Fungi, Vol 6, Iss 4, p 200 (2020)
Druh dokumentu: article
ISSN: 2309-608X
DOI: 10.3390/jof6040200
Popis: We evaluated the performance of the (1,3)-β-d-glucan (BDG) assay on bronchoalveolar lavage fluid (BALF) as a possible aid to the diagnosis of Pneumocystis jirovecii pneumonia. BALF samples from 18 patients with well-characterized proven, probable, and possible Pneumocystis pneumonia and 18 well-matched controls were tested. We found that the best test performance was observed with a cut-off value of 128 pg/mL; receiver operating characteristic/area under the curve (ROC/AUC) was 0.70 (95% CI 0.52–0.87). Sensitivity and specificity were 78% and 56%, respectively; positive predictive value was 64%, and negative predictive value was 71%. The low specificity that we noted limits the utility of BALF BDG as a diagnostic tool for Pneumocystis pneumonia.
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