Related Experiment Videos
[Correlation of vesico-ureteral reflux and recurrent urinary tract infections with increased bacterial adherence]
P Hagen1, A Hobisch, J P Guggenbichler
1Klinik für Urologie, Universitätsklinik Innsbruck.
Insights
Recurrent urinary tract infections (UTIs) in children with vesico-ureteral reflux are not primarily caused by bacterial adherence. Our study indicates other factors are more significant in developing these infections.
Area of Science:
- Urology
- Pediatric Nephrology
- Infectious Diseases
Background:
- Unimpeded urinary flow and complete bladder voiding are crucial for preventing urinary tract infections (UTIs).
- Recurrent UTIs are often linked to functional and anatomical urinary tract disorders, particularly in children with vesico-ureteral reflux (VUR).
- Bacterial adherence, influenced by receptor density and germ affinity, is a known factor in UTI development.
Purpose of the Study:
- To investigate the role of bacterial adherence in the development of recurrent urinary tract infections secondary to vesico-ureteral reflux in children.
- To determine the relative importance of bacterial adherence compared to other factors in VUR-associated UTIs.
Main Methods:
- The study assessed bacterial adherence in pediatric patients with vesico-ureteral reflux.
- Quantitative and qualitative analyses were performed to evaluate germ-receptor interactions.
- Comparison of adherence levels was made between patients with and without recurrent UTIs.
Main Results:
- Bacterial adherence was found to play a minor role in the pathogenesis of recurrent UTIs in children with VUR.
- The study suggests that factors beyond bacterial adherence are more critical in VUR-associated recurrent UTIs.
- Findings indicate a reduced significance of germ-receptor interactions in this specific patient group.
Conclusions:
- Bacterial adherence is not the primary driver of recurrent urinary tract infections in pediatric patients with vesico-ureteral reflux.
- Further research should focus on other contributing factors, such as anatomical abnormalities and host defense mechanisms, in VUR-associated UTIs.
Abstract:
Unimpeded urinary flow and voiding of the bladder without residual urine are essential for the prevention of urinary tract infections. Therefore, recurrent urinary tract infections are most commonly found in patients with functional and anatomic disorders of the urinary tract. Children suffering from vesico-ureteral reflux are especially susceptible to recurrent urinary tract infections. The interaction between germ and target cell, i.e. between antigen and receptor, is another important factor in the development of urinary tract infections. This so-called bacterial adherence is variable and depends upon receptor density as well as the affinity of the germ to the receptor. However, our study showed that this bacterial adherence plays a minor role in the development of recurrent urinary tract infections secondary to vesico-ureteral reflux.