Perfil microbiológico e de resistência bacteriana em urinoculturas de pacientes ambulatoriais no HU/UFS

Abstract

Objectives: To describe the bacterial resistance and urinary tract infections profile among the outpatients at the Universidade Federal de Sergipe’s academic hospital. Methods: This is a transversal observational study, in which 386 positive urine cultures were analyzed in the period of 2013 to 2014. The samples were cultivated in the CLED and Mc Conkey system. The bacterial identification and the sensitivity test were performed in panels on the MicroScan WalkAway automatized system. Contents: Enterobacteria were responsible for 85,39% of the isolated bacteria. Among this group Escherichia coli stands out, being responsible for more than half the infections. Escherichia coli presented low sensitivity to some of the most commonly used antibiotics for urinary infections, such as co-trimoxazole (56,37%), ampicillin/sulbactam (50%), ampicillin (45,1%) and cefalotin (45,1%). Escherichia coli showed greater sensitivity to nitrofurantoin (95,59%) than to ciprofloxacin (73,53%) or gentamicin (94,12%). Urinary pathogens in general presented a 37,81% sensitivity to ampicillin, 78,83% to nitrofurantoin, 77,03% to ciprofloxacin, 77,93% to levofloxacin and a 59,08% sensitivity to co-trimoxazole. Conclusions: The etiological profile did not differ much from the literature. A high rate of community-acquired urinary infection bacterial resistance was observed. Notably bacteria were more sensitive to nitrofurantoin and cefuroxime that sulfamethoxazole/trimethoprim, ampicillin/sulbatam and cephalothin.