Abstract
To compare early-onset sepsis (EOS) risk estimation and recommendations for infectious evaluation and/or empiric antibiotics using a categorical risk assessment versus the Neonatal Early-Onset Sepsis Calculator in a low-risk population. Retrospective chart review of late preterm (≥350/7-366/7 weeks' gestational age) and term infants born at the Brooke Army Medical Center between January 1, 2012 and August 29, 2019. We evaluated those born via cesarean section with rupture of membranes (ROM) < 10 minutes. Statistical analysis was performed to compare recommendations from a categorical risk assessment versus the calculator. We identified 1,187 infants who met inclusion criteria. A blood culture was obtained within 72 hours after birth from 234 (19.7%) infants and 170 (14.3%) received antibiotics per routine clinical practice, using categorical risk assessment. Respiratory distress was the most common indication for evaluation, occurring in 173 (14.6%) of patients. After applying the Neonatal Early-Onset Sepsis Calculator to this population, the recommendation was to obtain a blood culture on 166 (14%), to start or strongly consider starting empiric antibiotics on 164 (13.8%), and no culture or antibiotics on 1,021 (86%). Utilizing calculator recommendations would have led to a reduction in frequency of blood culture (19.7 vs. 14%, p < 0.0001) but no reduction in empiric antibiotics (14.3 vs. 13.8%, p = 0.53). There were no cases of culture-proven EOS. This population is low risk for development of EOS; however, 19.7% received an evaluation for infection and 14.3% received antibiotics. Utilization of the Neonatal Early-Onset Sepsis Risk Calculator would have led to a significant reduction in the evaluation for EOS but no reduction in antibiotic exposure. Consideration of delivery mode and indication for delivery may be beneficial to include in risk assessments for EOS. · Cesarean section with rupture of membranes at delivery confers low risk for EOS.. · Respiratory distress often triggers an EOS evaluation.. · Delivery mode should be considered in EOS risk..
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