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Urinary tract infections in children: why they occur and how to prevent them
1University of Missouri-Kansas City School of Medicine, USA.
Insights
Identifying and treating voiding dysfunction is key to preventing recurrent urinary tract infections (UTIs) in children. This approach is more effective than other interventions for managing pediatric UTIs.
Area of Science:
- Pediatric Urology
- Infectious Diseases
Background:
- Urinary tract infections (UTIs) commonly arise from bacterial colonization of the periurethral area.
- While uncircumcised male infants face higher initial UTI risk, infections predominantly affect females later.
- Risk factors in girls include antibiotic use disrupting flora and voiding dysfunction.
Purpose of the Study:
- To highlight the significance of voiding dysfunction in pediatric UTIs.
- To guide the appropriate use of diagnostic imaging following UTIs in children.
Main Methods:
- Review of risk factors and management strategies for pediatric UTIs.
- Discussion of individualized imaging protocols based on clinical presentation.
- Emphasis on ultrasonography and voiding cystourethrogram for acute pyelonephritis.
Main Results:
- Voiding dysfunction is the primary target for preventing recurrent UTIs in children.
- Individualized imaging is crucial; acute pyelonephritis necessitates bladder and upper tract imaging.
- Routine imaging may be unnecessary for older children with uncomplicated cystitis.
Conclusions:
- Effective management of pediatric UTIs hinges on addressing voiding dysfunction.
- Diagnostic imaging strategies for UTIs should be tailored to the individual child's clinical status.
- Prompt treatment response can obviate the need for imaging in some pediatric cystitis cases.
Abstract:
Urinary tract infections (UTIs) usually occur as a consequence of colonization of the periurethral area by a virulent organism that subsequently gains access to the bladder. During the first few months of life, uncircumcised male infants are at increased risk for UTIs, but thereafter UTIs predominate in females. An important risk factor for UTIs in girls is antibiotic therapy, which disrupts the normal periurethral flora and fosters the growth of uropathogenic bacteria. Another risk factor is voiding dysfunction. Currently, the most effective intervention for preventing recurrent UTIs in children is the identification and treatment of voiding dysfunction. Imaging evaluation of the urinary tract following a UTI should be individualized, based on the child's clinical presentation and on clinical judgment. Both bladder and upper urinary tract imaging with ultrasonography and a voiding cystourethrogram should be obtained in an infant or child with acute pyelonephritis. Imaging studies may not be required, however, in older children with cystitis who respond promptly to treatment.