Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Infant urinary tract infection in Sweden — A national study of current diagnostic procedures, imaging and treatment

Lindén, Magnus ; Rosenblad, Therese LU ; Rosenborg, Karin ; Hansson, Sverker and Brandström, Per (2024) In Pediatric Nephrology 39(11). p.3251-3262
Abstract

Background: Urinary tract infection (UTI) in infants is a common, potentially life-threatening bacterial infection, and must be managed carefully through the entire chain of care from diagnosis, choice of treatment, follow-up and risk stratification of future complications. This Swedish nationwide study of infant UTI was conducted to evaluate the current management of infant UTI, yield of investigations and the Swedish UTI guidelines’ ability to detect abnormalities of importance in the urinary tract. Methods: Infants < 1 year with a first episode of UTI were included in a prospective multicenter study. Treatment and follow-up were provided by local pediatricians. Clinical and laboratory findings and imaging results were reported to... (More)

Background: Urinary tract infection (UTI) in infants is a common, potentially life-threatening bacterial infection, and must be managed carefully through the entire chain of care from diagnosis, choice of treatment, follow-up and risk stratification of future complications. This Swedish nationwide study of infant UTI was conducted to evaluate the current management of infant UTI, yield of investigations and the Swedish UTI guidelines’ ability to detect abnormalities of importance in the urinary tract. Methods: Infants < 1 year with a first episode of UTI were included in a prospective multicenter study. Treatment and follow-up were provided by local pediatricians. Clinical and laboratory findings and imaging results were reported to the coordinating center. The current management and results were compared with a previous Swedish study. Results: One thousand three hundred six infants were included. Urine sampling was performed with clean catch technique in 93% of patients. Initial oral antibiotic treatment was used in 63%, predominantly third generation cephalosporines. Permanent kidney abnormalities were found in 10% and dilating vesicoureteral reflux (VUR) in 8%. Higher rates of male gender, non-E. coli infection and ultrasound dilatation were seen in infants < 1 month. UTI recurrences were reported in 18%. Conclusions: Infant UTI is still generating a considerable amount of follow-up examinations. There is a significant shift towards clean catch as the main urine sampling method. Voiding cystourethrography is performed less frequently reducing the findings of low grade VUR. The incidence of renal scarring is comparable with earlier studies which suggests that the Swedish guidelines are able to identify individuals with risk for long-term complications. Graphical abstract: A higher resolution version of the Graphical abstract is available as Supplementary information (Figure presented.)

(Less)
Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Clinical guidelines, Infant, Kidney damage, Urinary tract infection, Urine sampling, Vesicoureteral reflux
in
Pediatric Nephrology
volume
39
issue
11
pages
12 pages
publisher
Springer
external identifiers
  • pmid:39008116
  • scopus:85198624166
ISSN
0931-041X
DOI
10.1007/s00467-024-06415-4
language
English
LU publication?
yes
id
4de9252b-5836-4b6b-9135-98960616f021
date added to LUP
2024-11-28 11:48:45
date last changed
2025-07-11 06:34:04
@article{4de9252b-5836-4b6b-9135-98960616f021,
  abstract     = {{<p>Background: Urinary tract infection (UTI) in infants is a common, potentially life-threatening bacterial infection, and must be managed carefully through the entire chain of care from diagnosis, choice of treatment, follow-up and risk stratification of future complications. This Swedish nationwide study of infant UTI was conducted to evaluate the current management of infant UTI, yield of investigations and the Swedish UTI guidelines’ ability to detect abnormalities of importance in the urinary tract. Methods: Infants &lt; 1 year with a first episode of UTI were included in a prospective multicenter study. Treatment and follow-up were provided by local pediatricians. Clinical and laboratory findings and imaging results were reported to the coordinating center. The current management and results were compared with a previous Swedish study. Results: One thousand three hundred six infants were included. Urine sampling was performed with clean catch technique in 93% of patients. Initial oral antibiotic treatment was used in 63%, predominantly third generation cephalosporines. Permanent kidney abnormalities were found in 10% and dilating vesicoureteral reflux (VUR) in 8%. Higher rates of male gender, non-E. coli infection and ultrasound dilatation were seen in infants &lt; 1 month. UTI recurrences were reported in 18%. Conclusions: Infant UTI is still generating a considerable amount of follow-up examinations. There is a significant shift towards clean catch as the main urine sampling method. Voiding cystourethrography is performed less frequently reducing the findings of low grade VUR. The incidence of renal scarring is comparable with earlier studies which suggests that the Swedish guidelines are able to identify individuals with risk for long-term complications. Graphical abstract: A higher resolution version of the Graphical abstract is available as Supplementary information (Figure presented.)</p>}},
  author       = {{Lindén, Magnus and Rosenblad, Therese and Rosenborg, Karin and Hansson, Sverker and Brandström, Per}},
  issn         = {{0931-041X}},
  keywords     = {{Clinical guidelines; Infant; Kidney damage; Urinary tract infection; Urine sampling; Vesicoureteral reflux}},
  language     = {{eng}},
  number       = {{11}},
  pages        = {{3251--3262}},
  publisher    = {{Springer}},
  series       = {{Pediatric Nephrology}},
  title        = {{Infant urinary tract infection in Sweden — A national study of current diagnostic procedures, imaging and treatment}},
  url          = {{http://dx.doi.org/10.1007/s00467-024-06415-4}},
  doi          = {{10.1007/s00467-024-06415-4}},
  volume       = {{39}},
  year         = {{2024}},
}