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03.04.2024 | Original Article

Paediatric Escherichia coli urinary tract infection: susceptibility trends and clinical management—a retrospective analysis of a 10-year period

verfasst von: Seán Olann Whelan, Sarah Kyne, Andrew Dore, Mark Glynn, Frances Higgins, Belinda Hanahoe, Frank Moriarty, Edina Moylett, Martin Cormican

Erschienen in: Irish Journal of Medical Science (1971 -)

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Abstract

Background

Escherichia coli is the predominant urinary pathogen in children. Irish and international studies have demonstrated increasing antimicrobial resistance (AMR) to antibiotics such as co-amoxiclav.

Aims

We aimed to (1) examine the AMR patterns of paediatric urinary E. coli isolates, from both hospital and community sources, over a 10-year period; (2) assess the effectiveness of Children’s Health Ireland (CHI) antimicrobial guidance given local susceptibility data; and (3) review the clinical management of an admitted patient sub-set over a 6-year period.

Methods

Pure growth of urinary E. coli from patients aged ≤ 14 from 2012 to 2021 were analysed for AMR. Differences in susceptibility rates were assessed. A retrospective chart review conducted on inpatients aged ≥ 2 months to ≤ 14 years, 2016–2021.

Results

E. coli accounted for 70.8% of likely significant positive pure growth cultures (9314 isolates). Susceptibility to co-amoxiclav significantly increased over time, from 66.7% to 80.4% (2016–2021, p < 0.001). Nitrofurantoin and cefalexin had significantly higher susceptibility rates than trimethoprim (< 70% annually). 85.1% of isolates were susceptible to the combination of co-amoxiclav and gentamicin, recommended for those > 2months and systemically unwell. The additional gain in empiric susceptibility provided by gentamicin above that provided by co-amoxiclav alone has fallen from 16.4% to 6.7% (2016–2021). The 222 clinical cases reviewed showed improved antimicrobial guideline compliance over time.

Conclusions

This study provides important regional AMR data. Co-amoxiclav susceptibility increased significantly over time, contrasting with previous studies. This was temporally associated with stewardship measures reducing co-amoxiclav prescribing. Decreasing utility of gentamicin supports recent CHI guideline updates reducing gentamicin use.
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Metadaten
Titel
Paediatric Escherichia coli urinary tract infection: susceptibility trends and clinical management—a retrospective analysis of a 10-year period
verfasst von
Seán Olann Whelan
Sarah Kyne
Andrew Dore
Mark Glynn
Frances Higgins
Belinda Hanahoe
Frank Moriarty
Edina Moylett
Martin Cormican
Publikationsdatum
03.04.2024
Verlag
Springer International Publishing
Erschienen in
Irish Journal of Medical Science (1971 -)
Print ISSN: 0021-1265
Elektronische ISSN: 1863-4362
DOI
https://doi.org/10.1007/s11845-024-03670-0

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