Association of empiric antibiotic selection and clinical outcomes in hospitalised children with severe orbital infections: a retrospective cohort study

on behalf of Periorbital and Orbital Cellulitis (POC) Multicenter Study Group and the Canadian Paediatric Inpatient Research Network (PIRN)

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Abstract

Objective To determine the association of initial empiric antibiotic regimens with clinical outcomes in hospitalised children with severe orbital infections. Design Multi-centre observational cohort study using data from 2009 to 2018 clinical records. Setting Canadian children’s hospitals (7) and community hospitals (3). Patients Children between 2 months and 18 years hospitalised for >24 hours with severe orbital infections. Interventions Empiric intravenous antibiotic regimen in the first 24 hours of hospitalisation. Main outcome measures Length of hospital stay and surgical intervention using multivariable median regression and multivariate logistic regression, with adjustment for covariates. Results Of 1421 patients, 60.0% were male and the median age was 5.5 years (IQR 2.4–9.9). Median length of stay was 86.4 hours (IQR 56.9–137.5) and 180 (12.7%) received surgical intervention. Patients receiving broad-spectrum empiric antibiotics had an increased median length of stay, ranging from an additional 13.8 hours (third generation cephalosporin and anaerobic coverage) to 19.5 hours (third generation cephalosporin, staphylococcal and anaerobic coverage). No antibiotic regimen was associated with a change in the odds of surgical intervention. These findings remained unchanged in sensitivity analyses restricted to more severely ill patients. There was a twofold increase in the percentage of patients receiving the broadest empiric antibiotic regimens containing both staphylococcal and anaerobic coverage from 17.8% in 2009 to 40.3% in 2018. Conclusions Empiric use of broad-spectrum antibiotics with staphylococci and anaerobic coverage was associated with longer length of stay and similar rates of surgery in children with orbital infections. There is an urgent need for comparative effectiveness studies of various antibiotic regimes.

Original languageEnglish (US)
Article number23326175
JournalArchives of disease in childhood
DOIs
StateAccepted/In press - 2024

Funding

PJG has received grants from the Canadian Institutes of Health Research (CIHR), the PSI Foundation and The Hospital for Sick Children. He has received non-financial support from the EBMLive Steering Committee (expenses reimbursed to attend conferences) and the CIHR Institute of Human Development, Child and Youth Health (as a member of the institute advisory board, expenses reimbursed to attend meetings), is a member of the CMAJ Open and BMJ Evidence-Based Medicine Editorial Board. OD was supported by a Chercheur Boursier Clinicien Award, from the Fonds de recherche du Qu\u00E9bec \u2013 Sant\u00E9. PP has received grants from the Hospital for Sick Children Foundation and CIHR. The other authors have no conflicts of interest to disclose. The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors. The Pediatric Outcomes Research Team (PORT) is supported by a grant from the Hospital for Sick Children Foundation.

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health

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