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Establishment and Characterization of UTI and CAUTI in a Mouse Model
Published on: June 23, 2015
Urinary tract pathogens and resistance pattern
R Chakupurakal1, M Ahmed, D N Sobithadevi
1Department of Paediatrics, Burton Hospitals NHS Foundation Trust, Queen's Hospital, Burton-upon-Trent, Staffordshire, UK.
Insights
Pediatric urinary tract infections show increasing resistance to trimethoprim and Augmentin. Antibiotic choice for UTIs should be guided by local resistance data to ensure effective treatment.
Area of Science:
- Pediatric infectious diseases
- Antimicrobial resistance
- Urology
Background:
- Paediatric urinary tract infections (UTIs) exhibit significant regional variations in bacterial epidemiology and resistance patterns.
- Antibiotic resistance is evolving, necessitating updated treatment guidelines for effective empiric therapy.
Purpose of the Study:
- To retrospectively analyze antibiotic resistance patterns in children diagnosed with culture-proven UTIs.
- To evaluate trends in resistance to commonly prescribed antibiotics over a six-year period.
Main Methods:
- Inclusion of all infants and children with culture-proven UTI between 2002 and 2008.
- Positive urine culture defined as pure growth of a single organism >10^5 CFU/mL.
Main Results:
- A total of 547 UTIs were identified in 337 patients.
- Escherichia coli (E. coli) was the predominant pathogen, accounting for 92% of cases.
- A significant increase in resistance was observed for trimethoprim and Augmentin from 2002 to 2008, while resistance to cefalexin and nitrofurantoin remained low.
Conclusions:
- Increasing resistance to first-line antibiotics (trimethoprim, Augmentin) against E. coli in paediatric UTIs is evident.
- Regional monitoring of urinary pathogen resistance patterns is crucial for guiding antibiotic selection, adhering to NICE guidance.
- Further multi-center studies in the UK are needed to validate these findings.
Background:
Epidemiology and resistance patterns of bacterial pathogens in paediatric urinary tract infections (UTIs) show large inter-regional variability, and rates of bacterial resistance are changing due to different antibiotic treatment. Empiric therapy to treat UTI should be tailored to the surveillance data on the epidemiology and resistance patterns of common uropathogens to reduce treatment failures and emergence of bacterial resistance within the community.
Objective:
A retrospective data review was carried out to evaluate the resistance patterns to commonly used antibiotics in children with culture proven UTIs.
Methods:
All infants and children with culture proven UTI from 2002 to 2008 were included. Urine culture was deemed positive with a pure growth >10(5) (single organism).
Results:
A total of 547 UTIs were confirmed on urine cultures in 337 patients. An average of 78 cases were diagnosed each year. E coli was the most commonly grown pathogen (92%). From 2002 to 2008, rising resistance patterns were noted for trimethoprim (p
Conclusion:
Our data suggest that there has been an increasing resistance trend to the first-line antibiotics like trimethoprim and Augmentin against E coli. In accordance with NICE (National Institute for Health and Clinical Excellence) guidance, each region should monitor resistance patterns to urinary pathogens on a regular basis and use antibiotics with a low resistance pattern. Further studies are required from other centres in the UK to look at similar data.
Related Concept Videos
Urinary Tract Infection I: Introduction
Urine Studies II: Urine Culture and Sensitivity Test
Urinary Tract Infection II: Pathophysiology
Urinary Tract Infection III: Diagnostic Studies and Interprofessional Care
Microbiota of the Urogenital Tract
Development of Antibiotic Resistance

