Antibiotic treatment and antimicrobial resistance in children with urinary tract infections

J Glob Antimicrob Resist. 2020 Mar:20:4-10. doi: 10.1016/j.jgar.2019.06.016. Epub 2019 Jun 25.

Abstract

Objectives: The aim of this study was to describe antibiotic prescribing patterns and antimicrobial resistance rates in hospitalised children with febrile and afebrile urinary tract infections (UTIs).

Methods: Antibiotic prescriptions and antibiograms for neonates, infants and older children with UTI admitted to a general district hospital in Central Greece were evaluated. Data covering a 5-year period were collected retrospectively from the Paediatric Department's Electronic Clinical Archive. Patients were included based on clinical and microbiological criteria. Antimicrobial susceptibility was determined by the Kirby-Bauer disk diffusion method.

Results: A total of 230 patients were included in the study. Among 459 prescriptions identified, amikacin (31.2%) was the most common antibiotic prescribed in this population, followed by amoxicillin/clavulanic acid (17.4%) and ampicillin (13.5%). Children received prolonged intravenous (i.v.) treatments for febrile (mean ± S.D., 5.4 ± 1.45 days) and afebrile UTIs (mean ± S.D., 4.4 ± 1.64 days). A total of 236 pathogens were isolated. The main causative organism was Escherichia coli (79.2%) with high reported resistance rates to ampicillin (42.0%), trimethoprim/sulfamethoxazole (26.5%) and amoxicillin/clavulanic acid (12.2%); lower resistance rates were identified for third-generation cephalosporins (1.7%), nitrofurantoin (2.3%), ciprofloxacin (1.4%) and amikacin (0.9%). Klebsiella spp. isolates were highly resistant to cefaclor (27.3%).

Conclusion: High prescribing rates for amikacin and penicillins (± β-lactamase inhibitors) and prolonged i.v. treatments were observed. Escherichia coli was highly resistant to ampicillin, whilst third-generation cephalosporins exhibited greater in vitro efficacy. Establishment of antimicrobial stewardship programmes and regular monitoring of antimicrobial resistance could help to minimise inappropriate prescribing for UTIs.

Keywords: Antibiotic prescribing; Antimicrobial resistance; Children; UTI; Urinary tract infection.

MeSH terms

  • Administration, Intravenous
  • Adolescent
  • Amikacin / administration & dosage*
  • Amikacin / pharmacology
  • Amoxicillin-Potassium Clavulanate Combination / administration & dosage*
  • Amoxicillin-Potassium Clavulanate Combination / pharmacology
  • Ampicillin / administration & dosage*
  • Ampicillin / pharmacology
  • Anti-Bacterial Agents / administration & dosage*
  • Anti-Bacterial Agents / pharmacology
  • Antimicrobial Stewardship
  • Child
  • Child, Preschool
  • Disk Diffusion Antimicrobial Tests
  • Drug Resistance, Multiple, Bacterial
  • Escherichia coli / drug effects
  • Escherichia coli / isolation & purification
  • Female
  • Fever / drug therapy
  • Fever / microbiology*
  • Greece
  • Humans
  • Infant
  • Infant, Newborn
  • Klebsiella / drug effects
  • Klebsiella / isolation & purification
  • Male
  • Retrospective Studies
  • Urinary Tract Infections / drug therapy*
  • Urinary Tract Infections / microbiology

Substances

  • Anti-Bacterial Agents
  • Amoxicillin-Potassium Clavulanate Combination
  • Ampicillin
  • Amikacin