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Salud Pública de México

versión impresa ISSN 0036-3634

Resumen

VELAZQUEZ-ACOSTA, Consuelo; CORNEJO-JUAREZ, Patricia  y  VOLKOW-FERNANDEZ, Patricia. Bacterial resistance from urine cultures at an oncological center: follow-up to 10 years. Salud pública Méx [online]. 2016, vol.58, n.4, pp.446-452. ISSN 0036-3634.  https://doi.org/10.21149/spm.v58i4.8025.

Objective:

To describe the incidence and patterns of bacterial resistance in urine samples from a tertiary care oncology hospital in Mexico, from 2004 to 2013.

Materials and methods:

We included the strains obtained from urine cultures, describing separately multidrug-resistant (MDR) bacteria. We analyzed the susceptibility to different antibiotics.

Results:

51 202 urine cultures were processed during the study; 14 480 (28.3%) cultures were positive. In 11 427 samples Gram negative (79%) were isolated, 2 080 Gram positive (14.4%), and 973 yeasts (6.6%). Escherichia coli was the most frequent bacteria identified (56.1%); 24% of the community strains and 65.7% of the nosocomial were extended-spectrum beta-lactamase producers (ESBL). Klebsiella pneumoniae was isolated in 705 samples (4.8%); 115 were ESBL (16%), 13.1% from community and 29.8% from nosocomial source. Pseudomonas aeruginosa was identified in 593 cultures (4.1%): 9% from community and 51% nosocomial.

Conclusions:

MDR bacteria were more frequent in nosocomial isolates. It should be a priority to intensify the rational use of antimicrobials in the community and antibiotic stewardship in the hospital.

Palabras llave : urine; nosocomial; bacterial resistance to antibiotics; Mexico.

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