Aims: To describe the rate of early- and late-onset sepsis in neonates admitted to the neonatal intensive care unit at the Royal Women's Hospital and to compare the rate of late-onset sepsis (LOS) with a published (2008) cohort from the same unit. The secondary aim was to examine clinicians' compliance with antibiotic guidelines.
Methods: Infants born <32 weeks' gestation or <1500 g admitted between 1 July 2011 and 31 December 2011 were included. Strict definitions of sepsis and compliance with antibiotic guidelines were applied.
Results: One hundred and seventy-two infants met the inclusion criteria, with 152 having blood culture evaluations for early-onset sepsis (EOS) and 58 having 109 evaluations for LOS. Definite EOS occurred in 1.3% with Escherichia coli isolated. The rate of definite LOS in 2011 of 22% was not significantly different than the 27% in 2008, with coagulase-negative staphylococcus the main isolate. Antibiotic continuation beyond 72 h in infants with negative blood cultures was the main reason for non-compliance with antibiotic guidelines.
Conclusions: The rate of EOS is comparable with published reports and the rate of LOS has remained stable over a 3-year period. Discontinuation of antibiotics with negative septic markers and blood cultures at 48-72 h is encouraged.
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