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Article . 2019
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Resistencia emergente a la mupirocina en aislados de Staphylococcus aureus resistente a meticilina en un hospital pediátrico terciario en la Argentina

Authors: Vázquez, Nicolás M; Cáceres Guidó, Paulo; Fiorilli, Graciela; Moreno, Silvia;

Resistencia emergente a la mupirocina en aislados de Staphylococcus aureus resistente a meticilina en un hospital pediátrico terciario en la Argentina

Abstract

En América Latina, existen escasos estudios sobre la resistencia a mupirocina y producción de bioflm en Staphylococcus aureus resistente a la meticilina (SARM). En este trabajo, se investigó la resistencia a mupirocina en SARM aislados de pacientes pediátricos con bacteremia y su capacidad para producir bioflm. Se estudió la resistencia a antibióticos por Kirby-Bauer y microdilución en caldo. Se cuantifcó el bioflm bacteriano por ensayo de cristal violeta. El 2,3 % (5/217) de los aislados de SARM presentaron un alto nivel de resistencia a mupirocina con una concentración inhibitoria mínima de >512 µg/ml, además de resistencia cruzada con clindamicina, eritromicina, gentamicina y ciprofoxacina. Notablemente, dichos aislados formaron bioflm en un nivel moderado-alto. Este primer reporte en Argentina de aislados clínicos de SARM resistentes a la mupirocina es clave para seguir su evolución en el tiempo a nivel local y en la región de América Latina.

In Latin America, few studies have been done in mupirocin resistance and biofilm formation in methicillin-resistant Staphylococcus aureus (MRSA). This study investigated mupirocin-resistance in MRSA isolates from pediatric patients with bacteremia and their ability to form bioflm. Antibiotic resistance was analyzed with the Kirby-Bauer test and the broth microdilution method. Bacterial bioflm formation was measured using the crystal violet assay. Among MRSA isolates, 2.3 % (5/217) exhibited a high level of mupirocin-resistance with a minimum inhibitory concentration of > 512 µg/mL, in addition to cross-resistance with clindamycin, erythromycin, gentamicin, and ciprofoxacin. Remarkably, bioflm formation in such isolates was moderate to high. This is the frst report published in Argentina on clinical isolates of mupirocinresistant MRSA and it is critical for following its evolution over time at a local level and in the Latin American region.

Fil: Vázquez, Nicolás Martín. Universidad Maimónides; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina

Fil: Moreno, Silvia. Universidad Maimónides; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina

Fil: Caceres Guido, Paulo Arturo. Gobierno de la Ciudad de Buenos Aires. Hospital de Pediatría "Juan P. Garrahan"; Argentina

Fil: Fiorilli, Graciela. Gobierno de la Ciudad de Buenos Aires. Hospital de Pediatría "Juan P. Garrahan"; Argentina

Country
Argentina
Keywords

Staphylococcus aureus, Biofilm, Pediatría, PAEDIATRICS, Paediatrics, Resistencia a medicamentos, RESISTANCE TO DRUGS, Mupirocin, https://purl.org/becyt/ford/1.6, MUPIROCIN, Resistance to drugs, BIOFILM, https://purl.org/becyt/ford/1, STAPHYLOCOCCUS AUREUS, Mupirocina

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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