Abnormal Ultrasound Findings After a Urinary Tract Infection in Children
Hakkola, Mikael; Tervo, Ida; Pieviläinen, Oskari; Heiskanen, Johan; Honkila, Minna; Pokka, Tytti; Paalanne, Niko; Venhola, Mika; Perhomaa, Marja; Ruuska-Loewald, Terhi (2025-05-27)
Wiley-Blackwell
27.05.2025
Hakkola, M., Tervo, I., Pieviläinen, O., Heiskanen, J., Honkila, M., Pokka, T., Paalanne, N., Venhola, M., Perhomaa, M. and Ruuska-Loewald, T. (2025), Abnormal Ultrasound Findings After a Urinary Tract Infection in Children. Acta Paediatr. https://doi.org/10.1111/apa.70152
https://creativecommons.org/licenses/by-nc/4.0/
© 2025 The Author(s). Acta Paediatrica published by John Wiley & Sons Ltd on behalf of Foundation Acta Paediatrica. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
https://creativecommons.org/licenses/by-nc/4.0/
© 2025 The Author(s). Acta Paediatrica published by John Wiley & Sons Ltd on behalf of Foundation Acta Paediatrica. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
https://creativecommons.org/licenses/by-nc/4.0/
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202505283999
https://urn.fi/URN:NBN:fi:oulu-202505283999
Tiivistelmä
Abstract
Aim:
This study aimed to investigate the occurrence of urinary tract abnormalities detected in the ultrasound screening of children after a urinary tract infection episode, regardless of their age.
Methods:
This cohort study included children aged 0–16 years who underwent urinary tract ultrasound screening after a urinary tract infection between January 1, 2004, and December 31, 2015 in a paediatric university hospital in Finland. We excluded children with previously diagnosed pathologies of the urinary tract.
Results:
A total of 2050 children were included in this study. Among these, 116 (5.7%, 95% confidence interval 4.7%–6.7%) children had an abnormal ultrasound. In children with pyelonephritis, 70% of the abnormal ultrasounds were found in children younger than 2 years old. Age younger than 2 years was not associated with an increased risk of abnormality (odds ratio: 0.99, 95% confidence interval 0.65–1.52). Boys and children with non-Escherichia coli urinary tract infection or recurrent urinary tract infection were associated with a higher risk of having a urinary tract abnormality.
Conclusion:
Limiting ultrasound screening after pyelonephritis to children under 2 years of age, as recommended in many current treatment guidelines, may miss a significant proportion (30%) of children with urinary tract abnormalities.
Aim:
This study aimed to investigate the occurrence of urinary tract abnormalities detected in the ultrasound screening of children after a urinary tract infection episode, regardless of their age.
Methods:
This cohort study included children aged 0–16 years who underwent urinary tract ultrasound screening after a urinary tract infection between January 1, 2004, and December 31, 2015 in a paediatric university hospital in Finland. We excluded children with previously diagnosed pathologies of the urinary tract.
Results:
A total of 2050 children were included in this study. Among these, 116 (5.7%, 95% confidence interval 4.7%–6.7%) children had an abnormal ultrasound. In children with pyelonephritis, 70% of the abnormal ultrasounds were found in children younger than 2 years old. Age younger than 2 years was not associated with an increased risk of abnormality (odds ratio: 0.99, 95% confidence interval 0.65–1.52). Boys and children with non-Escherichia coli urinary tract infection or recurrent urinary tract infection were associated with a higher risk of having a urinary tract abnormality.
Conclusion:
Limiting ultrasound screening after pyelonephritis to children under 2 years of age, as recommended in many current treatment guidelines, may miss a significant proportion (30%) of children with urinary tract abnormalities.
Kokoelmat
- Avoin saatavuus [38329]
Ellei muuten mainita, aineiston lisenssi on https://creativecommons.org/licenses/by-nc/4.0/