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Comparison of clinical categories for Escherichia coli harboring specific qnrand chromosomal-mediated fluoroquinolone resistance determinants according to CLSI and EUCAST / Comparación de las categorías clínicas de cepas de Escherichia coli que contienen definidos mecanismos cromosómicos y plasmídicos de resistencia a quinolonas según CLSI y EUCAST
Machuca, Jesús; Briales, Alejandra; Díaz-de-Alba, Paula; Martínez-Martínez, Luis; Rodríguez-Martínez, José-Manuel; Pascual, Álvaro.
Affiliation
  • Machuca, Jesús; University Hospital Virgen Macarena. Infectious Diseases and Clinical Microbiology Unit. Seville. Spain
  • Briales, Alejandra; University of Seville. Department of Microbiology. Seville. Spain
  • Díaz-de-Alba, Paula; University of Seville. Department of Microbiology. Seville. Spain
  • Martínez-Martínez, Luis; University of Cantabria. Department of Molecular Biology. Santander. Spain
  • Rodríguez-Martínez, José-Manuel; Instituto de Salud Carlos III. Madrid. Spain
  • Pascual, Álvaro; Instituto de Salud Carlos III. Madrid. Spain
Enferm. infecc. microbiol. clín. (Ed. impr.) ; 34(3): 188-190, mar. 2016. graf
Article in English | IBECS | ID: ibc-150733
Responsible library: ES1.1
Localization: BNCS
ABSTRACT
EUCAST breakpoints are more restrictive than those defined by CLSI. This study highlights the discrepancies between CLSI and EUCAST in a well characterized isogenic Escherichia coli collection and their correlations with specific quinolone resistance mechanisms. The greatest number of discrepancies was observed in strains containing 2-4 resistance mechanisms (MIC values on the borderline of clinical resistance). Bearing in mind that quinolones are concentration dependent antimicrobial agents, small changes in MIC may have relevant consequences for treatment

outcomes:

RESUMEN
Los puntos de corte de EUCAST son más restrictivos que los definidos por CLSI. Este estudio analiza las discrepancias entre CLSI y EUCAST en una colección isogénica de Escherichia coli y su correlación con mecanismos específicos de resistencia a quinolonas. El mayor número de discrepancias se observó en cepas que contienen 2-4 mecanismos de resistencia (con CMI en el límite de la resistencia clínica). Teniendo en cuenta que las quinolonas son agentes antimicrobianos concentración-dependientes, pequeños cambios en el valor de la CMI pueden tener consecuencias relevantes para el resultado del tratamiento
Subject(s)

Full text: Available Collection: National databases / Spain Health context: Neglected Diseases Health problem: Neglected Diseases / Zoonoses Database: IBECS Main subject: Fluoroquinolones / Escherichia coli / Escherichia coli Infections Limits: Humans Language: English Journal: Enferm. infecc. microbiol. clín. (Ed. impr.) Year: 2016 Document type: Article Institution/Affiliation country: Instituto de Salud Carlos III/Spain / University Hospital Virgen Macarena/Spain / University of Cantabria/Spain / University of Seville/Spain

Full text: Available Collection: National databases / Spain Health context: Neglected Diseases Health problem: Neglected Diseases / Zoonoses Database: IBECS Main subject: Fluoroquinolones / Escherichia coli / Escherichia coli Infections Limits: Humans Language: English Journal: Enferm. infecc. microbiol. clín. (Ed. impr.) Year: 2016 Document type: Article Institution/Affiliation country: Instituto de Salud Carlos III/Spain / University Hospital Virgen Macarena/Spain / University of Cantabria/Spain / University of Seville/Spain
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