• Martin Stocker, Matteo Fontana, Salhab El Helou, Karl Wegscheider, and Thomas M Berger.
• Neonatal and Pediatric Intensive Care Unit, Children's Hospital of Lucerne, Switzerland. stockermartin@mail.com
• Neonatology. 2010 Jan 1;97(2):165-74.

BackgroundDiagnosis of neonatal early-onset sepsis is difficult because clinical signs and laboratory tests are non-specific. Early antibiotic therapy is crucial for treatment success.ObjectiveTo evaluate the effect of procalcitonin (PCT)-guided decision-making on duration of antibiotic therapy in suspected neonatal early-onset sepsis.MethodsThis single-center, prospective, randomized intervention study was conducted in a tertiary neonatal and pediatric intensive care unit in the Children's Hospital of Lucerne, Switzerland, between June 1, 2005 and December 31, 2006. All term and near-term infants (gestational age >or=34 weeks) with suspected early-onset sepsis were randomly assigned either to standard treatment based on conventional laboratory parameters (standard group) or to PCT-guided treatment (PCT group). Minimum duration of antibiotic therapy was 48-72 h in the standard group, whereas in the PCT group antibiotic therapy was discontinued when two consecutive PCT values were below predefined age-adjusted cut-off values.Results121 newborns were randomly assigned either to the standard group (n = 61) or the PCT group (n = 60). The two groups were similar for baseline demographics, risk factors for early-onset sepsis, likelihood of infection as assessed by the attending physician and early conventional laboratory findings. There was a significant difference in the proportion of newborns treated with antibiotics >or=72 h between the standard group (82%) and the PCT group (55%) (absolute risk reduction 27%; odds ratio 0.27 (95% CI 0.12-0.62), p = 0.002). On average, PCT-guided decision-making resulted in a shortening of 22.4 h of antibiotic therapy. Clinical outcome was similar and favorable in both groups but sample size was insufficient to exclude rare adverse events.ConclusionSerial PCT determinations allow to shorten the duration of antibiotic therapy in term and near-term infants with suspected early-onset sepsis. Before this PCT-guided strategy can be recommended, its safety has to be confirmed in a larger cohort of neonates.Copyright 2009 S. Karger AG, Basel.

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