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Occurrence of antibiotic resistant enterococci in clinical specimens from a pediatric hospital

100%

Rudy M., Zientara M., Bek T., Martirosian G.

Polish Journal of Microbiology

2005

tom 54

nr 1

Enterococcal infection has become a major clinical problem and E. faecalis and E. faecium are the most frequently isolated species. However, the isolation of other species (E. casseliflavus, E. gallinarwn, E. durans) from clinical materials was reported recently. The aim of this study was to evaluate drug resistance of 97 species of enterococci isolated from clinical specimens of Upper Silesian Health Center of Child and Mother in Katowice. Each strain was tested for susceptibility to vancomycin, teicoplanin, aminoglycosides (gentamycin and streptomycin) and synercid (quinupristine/ dalfopristine) by the E-test method. Fifty three percent of studied enterococci demonstrated high level aminoglycoside resistance (HLAR) (MIC > 1024 μg/ml). Sixty three strains of E. faecalis were sensitive to vancomycin (MIC 1-4 μg/ml), but 5 strains demonstrated low sensitivity (3 strains with MIC = 6 μg/ml and 2 strains with MIC = 24 μg/ml). All studied enterococci were sensitive to teicoplanin (MIC < 2 μg/ml). A high percentage of E. faecium (70%) resistant to synercid was demonstrated (MIC = 2-24 μg/ml). Infection control and monitoring of antibiotic sensitivity among isolated hospital strains may prevent the transmission of resistant strains in a pediatric hospital.

Incidence of extended-spectrum beta-lactamases in clinical isolates of the family Enterobacteriaceae in a pediatric hospital

80%

Radosz-Komoniewska H., Gniadkowski M., Rogala-Zawada D., Nowakowska M., Rudy M., Wiechula B., Martirosian G.

Polish Journal of Microbiology

2004

tom 53

nr 1

The incidence of extended-spectrum β-lactamases (ESBLs) was analyzed in Enterobacteriaceae population circulating in the Upper Silesian Child and Mother Health Center in Katowice (USC&MHC). Altogether 1164 clinical specimens, collected from children hospitalized in 8 different hospital units of USC&MHC were investigated. Five hundred and eighty-five clinical isolates of the family Enterobacteriaceae were identified in specimens collected from 403 patients. Two hundred and twenty-nine Enterobacteriaceae strains (39%) isolated from 162 patients were found to be putative ESBL producers as revealed by double-disc synergy (DDS) test. ESBL activity was the most prevalent in the population of Klebsiella pneumoniae (77%), followed by Klebsiella oxytoca (50%), Serratia marcescens (43%), Escherichia coli (30%), Enterobacter spp. (18%) and Proteus mirabilis (12%). ESBL producers demonstrated also wide resistance to the non-β-lactam antimicrobial co-trimoxazole (93%) and the aminoglycosides netilmicin (88%), gentamicin (84%) and amikacin (79%).

Ograniczanie wyników

2 Polish Journal of Microbiology

2 Martirosian G.

2 Rudy M.

1 Bek T.

1 Gniadkowski M.

1 Nowakowska M.

1 Radosz-Komoniewska H.

1 Rogala-Zawada D.

1 Wiechula B.

1 Zientara M.

1 2005

1 2004

Wyniki wyszukiwania

Occurrence of antibiotic resistant enterococci in clinical specimens from a pediatric hospital

Incidence of extended-spectrum beta-lactamases in clinical isolates of the family Enterobacteriaceae in a pediatric hospital