Journal
ARCHIVES OF DISEASE IN CHILDHOOD-FETAL AND NEONATAL EDITION
Volume 97, Issue 5, Pages F368-F370Publisher
BMJ PUBLISHING GROUP
DOI: 10.1136/fetalneonatal-2010-194100
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Funding
- Italian Ministry of Health research grant [99010661]
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Objective To investigate the accuracy of procalcitonin (PCT) as a diagnostic marker of nosocomial sepsis (NS) and define the most accurate cut-off to distinguish infected from uninfected neonates. Setting Six neonatal intensive care units (NICUs). Patients 762 neonates admitted to six NICUs during a 28-month observational study for whom at least one serum sample was taken on admission. Main outcome measures Positive and negative predictive values at different PCT cut-off levels. Results The overall probability of an NS was doubled or more if PCT was >0.5 ng/ml. In very-low-birth-weight (VLBW) infants, a cut-off of >2.4 ng/ml gave a positive predictive value of NS near to 50% with a probability of a false-positive diagnosis of NS in about 10% of the patients. Conclusions In VLBW neonates, a serum PCT value >2.4 ng/ml prompts early empirical antibiotic therapy, while in normal-birth-weight infants, a PCT value <= 2.4 ng/ml carries a low risk of missing an NS.
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