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Meta-analysis of vesicoureteral reflux and urinary tract infection in children
Mika Venhola1, Niilo-Pekka Huttunen, Matti Uhari
1Department of Pediatrics, Oulu University Hospital, Oulu, Finland. mika.venhola@ppshp.fi
Insights
Surgical treatment effectively resolves vesicoureteral reflux (VUR) in children. However, medical and surgical approaches show no significant differences in preventing recurrent urinary tract infections (UTIs), promoting kidney growth, or reducing renal scarring.
Area of Science:
- Pediatric Urology
- Nephrology
- Evidence-Based Medicine
Background:
- Vesicoureteral reflux (VUR) is a common condition in children, often associated with urinary tract infections (UTIs).
- Treatment options include medical management and surgical correction, with ongoing debate regarding their comparative efficacy.
- Assessing long-term outcomes like renal growth and scarring is crucial for guiding treatment decisions.
Purpose of the Study:
- To conduct a meta-analysis evaluating the efficacy of medical versus surgical treatment for VUR in children.
- To compare outcomes including the recurrence of UTIs, renal growth, and renal scarring between treatment groups.
Main Methods:
- A comprehensive MEDLINE search was performed for English-language articles published between 1966 and 2002.
- 139 articles were selected for detailed review, supplemented by additional sources from reference lists.
- Five studies met the criteria for inclusion in the meta-analysis, with independent reviewer verification.
Main Results:
- Surgical treatment demonstrated superior efficacy in abolishing VUR compared to medical management (OR = 0.033).
- No statistically significant differences were observed between surgical and medical treatments regarding UTI recurrence (OR = 0.80), kidney growth (OR = 2.46), or renal scarring (OR = 1.05).
- Data limitations precluded evaluation of treatment differences between boys and girls.
Conclusions:
- While surgery effectively resolves VUR, clinical outcomes beyond reflux resolution do not significantly differ between medical and surgical treatments.
- Conservative management is recommended as the initial approach for children with UTIs and significant VUR.
- Surgical intervention should be reserved for cases with antimicrobial intolerance or persistent, clinically significant VUR after extended follow-up.
Objective:
We evaluated the efficacy of medical and surgical treatment of vesicoureteral reflux (VUR) in children by means of a meta-analysis, using the recurrence of urinary tract infections (UTIs), renal growth and renal scarring as endpoints.
Material And Methods:
We performed a MEDLINE search for articles published in the English language between 1966 and 2002. Of 639 relevant articles found, 139 were chosen for a close review and the main database was supplemented with some additional articles derived from the references of these reviewed articles. Five studies were found acceptable for a meta-analysis. We reviewed all articles independently. All reviewers had to approve the accepted articles and data that were used in this meta-analysis.
Results:
Operative treatment of VUR was better than medical treatment in terms of abolishing reflux (OR = 0.033; 95% CI 0.010-0.107). We found no statistically significant differences between surgically and medically treated patients in terms of kidney growth (OR = 2.46; 95% CI 0.74-8.16), scarring (OR = 1.05; 95% CI 0.71-1.55) or recurrence of UTIs (OR = 0.80; 95% CI 0.49-1.29). We could not evaluate possible differences in the parameters monitored between boys and girls because of a lack of data.
Conclusions:
Although surgical treatment of VUR is a common pediatric urologic procedure, the data relating to it are scanty. We found no clinically significant differences between surgical and medical treatment for VUR other than in the resolution of VUR itself. On the basis of present evidence we suggest that a child with UTI and significant VUR should be treated conservatively at first and that surgical treatment should be reserved for children who experience problems with antimicrobials or persistent clinically significant VUR after several years of follow-up.
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