Background: The risk for invasive bacterial infection (IBI) in young infants with fever increases the use of invasive and therapeutic interventions, such as lumbar puncture (LP) and antimicrobials which may be unnecessary. In the present study, we analyzed whether viral pathogen(s) detection using a respiratory pathogen panel (RPP) alters the use of LP and antibiotics in 29-90-day-old infants presenting with fever to a regional pediatric hospital.
Methods: We collected medical history, clinical presentation, diagnostic tests and results, treatment, disposition, and length of stay (LOS) for selected patients. Data were compared between RPP positive (+) and RPP negative (-) infants. Use of LP and antibiotics were controlled for using regression analysis. P values <0.05 were considered significant.
Results: Among 172 RPP-tested infants, 45.4% had a virus(es). LP and antibiotics were used in 14.2% and 19.5% of infants in RPP(+) and in 17.0% and 28.7% in RPP(-) groups (P=0.60, 0.16), respectively. Nearly half of the infants in both groups were admitted and had comparable LOS. Hospitalization and at least one abnormal laboratory result were associated with a 2-3 times higher chance of LP and antibiotic utilization, irrespective to age and temperature level. No studied infant had been diagnosed with IBI, and 14.5% of infants in the RPP(-) group had bacteriuria.
Conclusions: Detection of viral pathogen(s) did not significantly reduce the use of LP or antimicrobials in young infants with unexplained fever.
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