학술논문
High MICs for Vancomycin and Daptomycin and Complicated Catheter-Related Bloodstream Infections with Methicillin-Sensitive Staphylococcus aureus
Document Type
article
Author
Rafael San-Juan; Esther Viedma; Fernando Chaves; Antonio Lalueza; Jesús Fortún; Elena Loza; Miquel Pujol; Carmen Ardanuy; Isabel Morales; Marina de Cueto; Elena Resino-Foz; Alejandra Morales-Cartagena; Alicia Rico; María P. Romero; María Ángeles Orellana; Francisco López-Medrano; Mario Fernández-Ruiz; José María Aguado
Source
Emerging Infectious Diseases, Vol 22, Iss 6, Pp 1057-1066 (2016)
Subject
Language
English
ISSN
1080-6040
1080-6059
1080-6059
Abstract
We investigated the prognostic role of high MICs for antistaphylococcal agents in patients with methicillin-sensitive Staphylococcus aureus catheter-related bloodstream infection (MSSA CRBSI). We prospectively reviewed 83 episodes from 5 centers in Spain during April 2011–June 2014 that had optimized clinical management and analyzed the relationship between E-test MICs for vancomycin, daptomycin, oxacillin, and linezolid and development of complicated bacteremia by using multivariate analysis. Complicated MSSA CRBSI occurred in 26 (31.3%) patients; MICs for vancomycin and daptomycin were higher in these patients (optimal cutoff values for predictive accuracy = 1.5 μg/mL and 0.5 μg/mL). High MICs for vancomycin (hazard ratio 2.4, 95% CI 1.2–5.5) and daptomycin (hazard ratio 2.4, 95% CI 1.1–5.9) were independent risk factors for development of complicated MSSA CRBSI. Our data suggest that patients with MSSA CRBSI caused by strains that have high MICs for vancomycin or daptomycin are at increased risk for complications.