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Diagn Microbiol Infect Dis. 2013 Aug;76(4):464-9. doi: 10.1016/j.diagmicrobio.2013.04.023. Epub 2013 May 25.

The role of procalcitonin in the identification of invasive fungal infection-a systemic review and meta-analysis.

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Clinical Laboratory, Shenzhen Shajing Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.


We aimed to summarize evidence on the accuracy of procalcitonin (PCT) test in differentiating fungal infection from other causes of infection. We searched electronic database for original researches that reported diagnostic performance of PCT alone or compare with other biomarkers to diagnose invasive fungal infection (IFI). We included 8 qualifying studies studying 474 episodes of suspected fungal infection with 155 (32.7%) probable or proven IFIs. Four studies compared IFI to bacterial sepsis, in which the pooled positive likelihood ratios and negative likelihood ratios were 4.65 (95% confidence interval [CI], 2.46-8.79) and 0.15 (95% CI, 0.05-0.41), respectively. Another 4 studies compared IFI to uninfected individuals, in which the pooled positive likelihood ratios and negative likelihood ratios were 4.01 (95% CI, 2.04-7.88) and 0.23 (0.07-0.77), respectively. The existing literature suggests good diagnostic accuracy for the PCT test for discrimination between IFIs and bacterial infection or noninfectious conditions. Given the high heterogeneity, medical decisions should be based on both PCT test results and clinical findings.


Bacterial sepsis; Invasive fungal infection; Procalcitonin

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