Resumen

COLLADO GARCIA, Oscar et al. Bacterial species associated with urinary tract infections. AMC [online]. 2017, vol.21, n.4, pp.479-486. ISSN 1025-0255.

Background: urinary tract infections are one of the main causes of disease infections in the medical practice. There are other less common bacteria found in hospitals environment that join the usual ones, which make the patients’ response to treatments more difficult. Objective: to establish the participation of bacterial species in urinary infections diagnosed to patients assisted at Amalia Simoni Hospital in Camagüey. Methods: a transversal, descriptive, observational study was conducted at a microbiology laboratory where the information concerning urine tests that had been made for seven years (January, 2008 until December, 2014) was selected. Those conducting to bacterial isolation with the identification of the species, or genera, were the only ones considered. Neither the age nor the sex of patients was taken into account. A frequency analysis for establishing the percentage of participation of each species was done. Results: 2 510 urine cultures, corresponding to single-bacterial urosepsis, demonstrate the participation of 11 genera; seven of them included 19 species whose uropathogenic value was confirmed. E. coli prevailed (53,46 %), followed by Citrobacter freundii (13,54 %), Pantoea agglomerans (12,86 %), Acinetobacter spp. (4,02 %), Staphylococcus haemolyticus (3,66 %), and others with smaller quantities including Stenotrophomonas maltophilia and Myroides spp., that were not reportedly in Cuba in this type of infection. There was a prevalence of gram-negative bacteria (92,47 %) while the unique gram-positive corresponded to Staphylococcus (7,53 %). Conclusions: even though E. coli still prevails in the analyzed infection, a great number of gram-negative species increases. The high presentation of P. agglomerans,and the presence of Acinetobacter spp. Stenotrophomonas maltophilia and even Myroides spp. could be associated with selective processes inducted by a wide and intense hospitality antibiotics therapy, something to be considered in future research.

Palabras clave : URINARY TRACT INFECTIONS; ACINETOBACTER; ESCHERICHIA COLI; GRAM-NEGATIVE BACTERIA; OBSERVATIONAL STUDY.

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