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Diagnostic accuracy of the 1,3-beta-d-glucan test and lactate dehydrogenase for pneumocystis pneumonia in non-HIV patients
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Diagnostic accuracy of the 1,3-beta-d-glucan test and lactate dehydrogenase for pneumocystis pneumonia in non-HIV patients
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Journal Article
Diagnostic accuracy of the 1,3-beta-d-glucan test and lactate dehydrogenase for pneumocystis pneumonia in non-HIV patients
2021
Overview
We evaluated the serum levels of (1–3)-beta-
d
-glucan (BG) and lactate dehydrogenase (LDH) as a tool to support pneumocystis pneumonia (PCP) diagnostic procedures in non-HIV patients. We retrospectively collected non-HIV (human immunodeficiency virus) patients presenting clinical features of PCP between April 1st, 2013, and December 31st, 2018. A total of 225 included patients were tested for
Pneumocystis jirovecii
by polymerase chain reaction (PCR) and methenamine silver staining. Based on different exclusion criteria, 179 cases were included in the BG group, and 196 cases were included in the LDH group. In each group, cases with positive immunofluorescence (IF) microscopy and PCR were considered proven PCP, while cases with only positive PCR were considered probable PCP. Fifty patients with negative IF and PCR results and proven to be non-PCP infection were chosen randomly as the control group. The cut-off levels of BG and LDH to distinguish non-PCP from probable PCP were 110 pg/mL and 296 U/L with 88% sensitivity and 86% specificity, and 66% sensitivity and 88% specificity, respectively. The cut-off levels of BG and LDH to distinguish non-PCP from proven PCP were 285.8 pg/mL and 379 U/L with 92% sensitivity and 96% specificity, and 85% sensitivity and 77% specificity, respectively. The cut-off levels of BG and LDH to distinguish non-PCP from proven/probable PCP were 144.1 pg/mL and 363 U/L with 90% sensitivity, 86% specificity and 80% sensitivity, 76% specificity respectively. BG and LDH are reliable indicators for detecting
P. jirovecii
infection in HIV-uninfected immunocompromised patients.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
