Association between Vancomycin-Resistant Enterococci Bacteremia and Ceftriaxone Usage
| Autor: | Danielle F. Kunz, Loren G. Miller, Mukesh Patel, Eric Chamot, Stephen A. Moser, Rhett M. Shirley, Peter G. Pappas, John W. Baddley, James A. McKinnell |
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| Rok vydání: | 2012 |
| Předmět: |
Male
Microbiology (medical) medicine.medical_specialty Epidemiology medicine.drug_class Antibiotics Article Hospitals Urban Vancomycin Internal medicine medicine Humans Intensive care medicine Retrospective Studies Cross Infection business.industry Contraindications Incidence (epidemiology) Ceftriaxone Vancomycin Resistance Retrospective cohort study Middle Aged biochemical phenomena metabolism and nutrition bacterial infections and mycoses Antimicrobial medicine.disease Anti-Bacterial Agents Infectious Diseases Bacteremia Cohort Alabama Female business Enterococcus medicine.drug |
| Zdroj: | Infection Control & Hospital Epidemiology. 33:718-724 |
| ISSN: | 1559-6834 0899-823X 0195-9417 |
| DOI: | 10.1086/666331 |
| Popis: | Objective.Vancomycin-resistant enterococci (VRE) have become a public health concern with implications for patient mortality and costs. Hospital antibiotic usage may impact VRE incidence, but the relationship is poorly understood. Animal investigations suggest that ceftriaxone may be associated with VRE proliferation. We measured antimicrobial usage and VRE bloodstream infection (VRE-BSI) incidence to test our hypothesis that increased ceftriaxone usage would be associated with a higher incidence of VRE-BSI.Design.Retrospective cohort study.Setting.University of Alabama at Birmingham Medical Center, a 900-bed urban tertiary care hospital.Participants.All patients admitted during the study period contributed data.Methods.We conducted a retrospective analysis of antimicrobial usage and VRE-BSI from 2005 to 2008 (43 months). Antimicrobial usage was quantified as days of therapy (DOTs) per 1,000 patient-days. VRE-BSI incidence was calculated as cases per 1,000 patient-days. Negative binomial regression with adjustment for correlation between consecutive observations was used to measure the association between antimicrobial usage and VRE-BSI incidence at the hospital- and care-unit levels.Results.VRE-BSI incidence increased from 0.06 to 0.17 infections per 1,000 patient-days. Hospital VRE-BSI incidence was associated with prior-month ceftriaxone DOTs (incidence rate ratio, 1.38 per 10 DOTs; P = .005). After controlling for ceftriaxone, prior-month cephalosporin usage (class) was not predictive of VRE-BSI (P = .70). Similarly, prior-month usage of piperacillin-tazobactam, ceftazidime, cefepime, cefazolin, or vancomycin was not predictive of VRE-BSI when considered individually (P ≥ .4 for all comparisons). The final model suggests that type of intensive care unit was related to VRE-BSI incidence.Conclusions.Ceftriaxone usage in the prior month, but not cephalosporin (class) or vancomycin usage, was related to VRE-BSI incidence. These findings suggest that an antimicrobial stewardship program that limits ceftriaxone may reduce nosocomial VRE-BSI incidence. |
| Databáze: | OpenAIRE |
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