Can procalcitonin be a diagnostic marker for catheter-related blood stream infection?

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The potential role of procalcitonin (PCT) in the diagnosis of catheter-related bloodstream infection (CRBSIs) is still unclear and requires further research” Ozsurekci et al (2016).

Abstract:

OBJECTIVE: The potential role of procalcitonin (PCT) in the diagnosis of catheter-related bloodstream infection (CRBSIs) is still unclear and requires further research. The diagnostic value of serum PCT for the diagnosis of CRBSI in children is evaluated here.

METHOD: This study was conducted between October 2013 and November 2014, and included patients with suspected CRBSI from 1 month to 18 years of age who were febrile, with no focus of infection, and had a central venous catheter. Levels of PCT and other serum markers were measured, and their utility as CRBSI markers was assessed. Additionally, the clinical performance of a new, automated, rapid, and quantitative assay for the detection of PCT was tested.

RESULTS: Among the 49 patients, 24 were diagnosed with CRBSI. The PCT-Kryptor and PCT-RTA values were significantly higher in proven CRBSI compared to those in unproven CRBSI (p=0.03 and p=0.03, respectively). There were no differences in white blood cell count and C-reactive protein (CRP) levels between proven CRBSI and unproven CRBSI. Among the 24 patients with CRBSI, CRP was significantly higher among those with Gram-negative bacterial infection than in those with Gram-positive bacterial infections. PCT-Kryptor was also significantly higher among patients with Gram-negative bacterial infection than in those with Gram-positive bacterial infections (p=0.01 and p=0.02, respectively).

CONCLUSIONS: The authors suggest that PCT could be a helpful rapid diagnostic marker in children with suspected CRBSIs.

Full Text

Reference:

Ozsurekci, Y., Oktay Arıkan, K., Bayhan, C., Karadağ-Öncel, E., Emre Aycan, A., Gürbüz, V., Hasçelik, G. and Ceyhan, M. (2016) Can procalcitonin be a diagnostic marker for catheter-related blood stream infection in children? Jornal de Pediatria. April 27th. [Epub ahead of print].

doi: 10.1016/j.jped.2015.11.004.

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