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- W1625542942 abstract "ABSTRACT To evaluate the value of single and nested PCRs for diagnosis of Pneumocystis carinii pneumonia (PCP) in a variety of respiratorily distressed patient groups, 574 respiratory samples from 334 patients (89 human immunodeficiency virus [HIV]-positive patients, 61 transplant recipients, 66 malignancy patients, 34 otherwise immunosuppressed patients, and 84 immunocompetent patients) were prospectively examined by microscopy and single and nested PCRs. The resulting data were correlated with clinical evidence of PCP. Microscopy and single PCR of bronchoalveolar lavage (BAL) specimens from HIV patients were 100% sensitive and specific in detecting PCP, whereas nested PCR, although being 100% sensitive, reached a specificity of only 97.5%. In the three non-HIV immunosuppressed patient groups, both single and nested PCR invariably produced lower positive predictive values than microscopy. Among immunocompetent patients, the positive predictive values of both PCRs were 0%. Therefore, the diagnostic values of the PCR methods tested do not seem to offer any additional advantage compared to that of conventional microscopy for these patient groups. However, nested PCR identified a significant percentage of clinically silent P. carinii colonizations in about 17 to 20% of immunocompetent and immunosuppressed non-HIV patients." @default.
- W1625542942 created "2016-06-24" @default.
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- W1625542942 date "2000-04-01" @default.
- W1625542942 modified "2023-10-16" @default.
- W1625542942 title "Evaluation of Diagnostic Value and Epidemiological Implications of PCR for <i>Pneumocystis carinii</i> in Different Immunosuppressed and Immunocompetent Patient Groups" @default.
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- W1625542942 doi "https://doi.org/10.1128/jcm.38.4.1461-1467.2000" @default.
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