RESUMO
Se estudió la prevalencia de diferentes especies de Enterococcus y su resistencia a antimicrobianos en cepas aisladas en 5 hospitales del norte de Chile. Un total de 249 cepas de Enterococcus spp fueron incluidas en el estudio. Las principales fuentes de obtención fueron muestras de orinas y heridas operatorias. Se identificaron 5 especies de Enterococcus, siendo E. faecalis y E. faecium las especies aisladas con mayor frecuencia en todos los hospitales. Se observó una alta susceptibilidad a los antimicrobianos β-lactámicos, resistencia moderada a tetracilina, ciprofloxacina y eritromicina, y resistencia elevada a cloranfenicol. No se detectó resistencia a vancomicina y aproximadamente, 12% de las cepas de Enterococcus sp presentó resistencia a altas concentraciones de gentamicina. En 30% del total de las cepas de Enterococcus estudiadas se observó resistencia a 3 y más antimicrobianos.
Assuntos
Humanos , Antibacterianos/farmacologia , Enterococcus/isolamento & purificação , Enterococcus , Infecção Hospitalar/microbiologia , Infecções por Bactérias Gram-Positivas/epidemiologia , Infecções por Bactérias Gram-Positivas/tratamento farmacológico , Resistência a Múltiplos Medicamentos , Chile , Testes de Sensibilidade Microbiana , Prevalência , Especificidade da EspécieRESUMO
The prevalence of different species of Enterococcus and the resistance to antimicrobial drugs was studied in strains isolated in 5 hospitals of Northern Chile. A total of 249 of Enterococcus spp strains were included in this study. Enterococci were mostly isolated from urine and wounds. Among five species identified, E. faecalis and E. faecium were most frequently isolated in the all hospitals. High susceptibility to beta-lactam antibiotics, moderate resistance to tetracycline, ciprofloxacin and erythromycin, and high resistance to chloramphenicol was observed. Vancomycin resistance was absent. Approximately 12% of Enterococcus spp strains presented high level of gentamicin resistance. Multiresistance to 3 or more antimicrobial agents was detected in 30% of total Enterococcus strains studied.