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[Urinary tract infections in childhood. Old and new aspects]
1Abt. Pädiatrische Nephrologie, Univ.-Klinikum Essen.
Insights
Urinary tract infections (UTIs) are common in children, especially girls. Prompt diagnosis and tailored treatment are crucial to prevent kidney damage and long-term complications from recurrent infections.
Area of Science:
- Pediatrics
- Infectious Diseases
- Nephrology
Context:
- Urinary tract infections (UTIs) represent a significant health concern in childhood, affecting approximately 5% of girls and 0.5% of boys.
- While boys are more affected in infancy, girls remain susceptible until age twelve, highlighting a gender-specific predisposition.
- Pediatricians frequently encounter the challenge of diagnosing and treating childhood UTIs effectively.
Purpose:
- To emphasize the importance of timely and accurate diagnosis of UTIs in children.
- To differentiate between infections that do not cause renal damage (bacteriuria, cystourethritis) and those that can lead to severe consequences (recurrent pyelonephritis).
- To highlight the role of both mechanical and functional risk factors, including impaired bladder function and local immunologic impairments, in predisposing children to recurrent UTIs.
Summary:
- Recurrent pyelonephritis, unlike asymptomatic bacteriuria or cystourethritis, can result in irreversible kidney scarring and potentially lead to renal failure requiring dialysis.
- Risk factors for recurrent UTIs include mechanical issues (obstruction, reflux) and increasingly recognized functional factors like impaired bladder function.
- Local immunologic impairments, such as P1-blood-group antigen characteristics, decreased urothelial function, and increased urothelial colonization, also contribute to UTI susceptibility.
Impact:
- Highlights the necessity of age-appropriate and individualized diagnostic and treatment strategies for childhood UTIs.
- Aims to prevent long-term renal damage, including dialysis-requiring renal failure.
- Stresses the importance of avoiding unnecessary diagnostic and therapeutic interventions, optimizing patient care.
Abstract:
Urinary tract infections are one of the most frequent infections during childhood. About 5% of all girls and 0.5% of all boys are suffering from at least one urinary tract infection until the end of schooltime. While the boys predominate in the first year of life with decreasing incidence of infection later on the girls remain predisposed up to an age of twelve. Each pediatrician faces every day the problem of a quick diagnosis and an appropriate therapy of urinary tract infections. While symptomless bacteriuria and cystourethritis do not destroy the renal parenchyma recurrent pyelonephritis may cause irreversible parenchyma scars up to a dialysis demanding renal failure. Besides the well-known mechanical risk factors (i.e. obstruction, reflux) functional risk factors like impaired bladder function alone as well as combined with mechanical ones are gaining in significance. Another factor predisponing to recurrent urinary tract infections is a local immunologic impairment of the urinary tract (i.e. P1-blood-group antigen, decreased urothelial function, increased urothelial colonisation). Age-appropriate and individual diagnosis and treatment are necessary first to avoid late damages and second to protect the children against unnecessary diagnostic and therapeutical managements.