Urinary infection produced by enterococcus faecalis and enterococcus faecium associated with bladder catheterization: risk factors and evaluation of resistance patterns

Background and objectives: Urinary tract infection (UTI) is one of the most common infections in hospitalized and outpatients. Bladder catheterization is an important risk factor. The increase in antibiotic resistance can make the treatment of these infections a challenge. The main objective of this study is to analize the resistance and sensitivity rates of UTIs in catheterized patients caused by Enterococcus (E.faecium and E.faecalis). Associated risk factors were also studied. Materials and methods: Retrospective observational study of patients with urinary infection associated to catheterization caused by E.faecium and E.faecalis during 2020 in al Internal Medicina Unit. Results: Ampicillin was the antibiotic with the highest resistance rate in the case of E.faecium (94.4%), while 93.05% of E.faecalis presented resistance to Gentamicin. Teicoplanin and Vancomycin were the ones with the lowest rates. Regarding risk factors, dementia, catheterization > 5 days, previous antibiotic therapy, immunosuppresion, and institutionalized patients were statistically significant. Conclusions: It is important to know the epidemiology of UTIs in each area, as well as the raties of resistance and risk factors in order to provide the most adequate treatment possible, and to avoid the increase in resistance.