RESUMO
INTRODUCTION: Urinary tract infections (UTIs) are among the most common bacterial diseases of childhood with an increased frequency in infants and young children. METHODS: We conducted a retrospective study of children diagnosed with UTI in the Alessandrescu-Rusescu National Institute for Mother and Child Health, Bucharest, Romania between January 2017 and December 2019. We evaluated the patients' clinical characteristics, laboratory parameters and the resistance profile of the identified uropathogens. RESULTS: A total of 264 children were included in the analysis. Females (71.6%, n=186) and infants (52.7%, n=139) were more commonly affected. The recurrence rate was 27.7% and was positively associated with the presence of renal malformations. Age under 1-year, increased leukocyte and neutrophil counts, and elevated C-reactive protein were associated with hospitalization. E. coli (80.3%, n=212) was the main etiological agent isolated, followed by Proteus mirabilis (9.8%, n=26) and Klebsiella spp. (6.4%, n=17). We identified increased resistance for all germs to common antibiotics used in pediatrics: ampicillin, amoxicillin/clavulanate, cefuroxime, ceftriaxone, and trimethoprim/sulfamethoxazole. CONCLUSIONS: We identified an increased resistance of uropathogens to antimicrobials commonly used in children. Reporting antimicrobial resistance from real-world clinical practice is necessary for accurate mapping and continuous updating of initial treatment recommendations until antibiogram results are received. In Romania and other countries, extensive studies are needed to follow up uropathogen resistance in both children and adults.
RESUMO
OBJECTIVES: To phenotypically and genotypically characterize 11 strains (isolated in four different centres) exhibiting penicillin MIC of 8-32 mg/L among isolates of the SPICE project. Nine isolates were from Romania (9/162; 5.56%) and two from Poland (2/305; 0.66%). METHODS: In vitro susceptibility was determined in triplicate by microdilution (CLSI guidelines), and additionally, MICs of penicillin, cefotaxime and amoxicillin were confirmed in triplicate by agar dilution. Multilocus sequence typing (MLST), PFGE and gene amplification and sequencing were performed. RESULTS: For the nine Romanian isolates, MICs were >/=16 mg/L for penicillin, cefotaxime and amoxicillin, >/=32 mg/L for cefuroxime and cefpodoxime, 4-8 mg/L for cefditoren and >/=128 mg/L for erythromycin and gentamicin. All isolates were non-susceptible to imipenem (MIC = 0.5-1 mg/L) and susceptible to levofloxacin (MIC = 0.5-1 mg/L) and vancomycin (MIC = 0.25-0.5 mg/L). These Romanian strains presented a new cluster in the 595-600 region of PBP2X (YSGIQL-->LSTPWF) conferring 98% homology with Streptococcus mitis PBP2X, with a new MurM allele (seven strains) with eight amino acid changes versus R6. PBP nucleotide sequences were highly conserved suggesting a common origin. Allelic profiles of two strains gave sequence type 321, three strains exhibited a single- and four a double-locus variance. MLST-predicted serotype was 23F in all but one strain (19F), but three strains were 19A by Quellung. CONCLUSIONS: The multidrug high resistance (precluding adequate oral therapy in children), its origin, the prevalence found in Romania and the presence of non-vaccine (7-valent) serotypes should worry the medical community because of a possible clonal diffusion that would limit therapeutic alternatives.
