• Paweł Kawczyński and Andrzej Piotrowski.
• Oddział Neonatologii Kliniki Perinatologii Instytutu Ginekologii i Połoznictwa w Lodzi.
• Ginekol Pol. 2004 Jun 1;75(6):439-44.

ObjectivesSensitive, reliable and early parameters of bacterial infection are extremely valuable in diagnosis of nosocomial infections in neonatal intensive care unit. In this study procalcitonin (PCT) and C-reactive protein (CRP) were evaluated for their diagnostic relevance in neonatal late onset sepsis.DesignClinical studyMaterials And MethodsWe analysed inflammatory parameters in 48 newborn infants admitted to the Intensive Care Unit of Institute of Paediatrics in Lodz who suffered from nosocomial sepsis. They were sampled for PCT and CRP levels at the time of the onset of signs and 24 hours later. CRP was determined by an nephelometric method and PCT was determined by an immunoluminometric assay.ResultsAt the onset of Gram negative sepsis 14 from 17 contaminated newborns had significantly increased CRP levels and 15 of them had increased levels of PCT After 24 hours 100% of them had elevated PCT and CRP levels. At the onset of Gram positive sepsis only 18 from 31 neonates with positive blood culture had increased CRP levels and 28 of them had elevated concentrations of PCT. This difference was statistically significant. After 24 hours 26 of them had elevated CRP and 100% had increased PCT concentrations--this difference was not significant.ConclusionMeasurement of procalcitonin concentrations may be useful for early diagnosis of late onset sepsis in neonates.

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