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Updated: Jan 4, 2026

An Immature Murine Model of Reversible Unilateral Ureteral Obstruction
Published on: April 4, 2025
[Long-term evolution of vesicoureteral reflux in children]
Mohamed Amine Oukhouya1, Saad Andaloussi1, Mohammed Tazi1
1Service de Chirurgie Pédiatrique, CHU Hassan II, Faculté de Médecine et de Pharmacie, Fès, Maroc.
Insights
Vesicoureteral reflux (VUR) in children often leads to urinary tract infections and potential kidney damage. Surgical intervention, like Cohen reimplantation, shows high success rates in resolving VUR and improving renal function.
Area of Science:
- Pediatric Surgery
- Urology
- Nephrology
Background:
- Vesicoureteral reflux (VUR) is a common condition in children, necessitating long-term monitoring to prevent chronic renal failure.
- Understanding the epidemiological and diagnostic features of VUR is crucial for effective management.
Observation:
- A retrospective study analyzed 42 pediatric patients with suspected VUR over six years.
- The mean age at diagnosis was 3 years and 2 months, with a male-to-female ratio of 1.8.
- Urinary tract infection (UTI) was the primary presentation in 90.4% of cases, with 54.8% exhibiting impaired renal function.
Findings:
- Isolated VUR occurred in 81% of patients; 19% had secondary or associated VUR.
- Treatment involved antibiotics for UTIs (90.4%), prophylaxis for recurrence, and Cohen reimplantation (97.62%).
- Surgical intervention was indicated for high-grade VUR (IV-V) and medically refractory cases, achieving a 92.68% VUR resolution rate and 95.23% renal function recovery.
Implications:
- Early diagnosis and appropriate management, including surgical repair, significantly improve outcomes for children with VUR.
- Successful VUR treatment reduces UTI recurrence and preserves renal function, preventing long-term complications.
- Positive parental perception of clinical outcomes highlights the effectiveness of current management strategies.
Abstract:
Vesicoureteral reflux is very common in children, requiring a long follow-up period to reduce its progression toward chronic renal failure. This study aims to analyze the epidemiological diagnostic features, the management of vesicoureteral reflux and long term course of patients with this disease. We conducted a retrospective study of 42 patients with suspected vesicoureteral reflux hospitalized in the Department of Visceral Paediatric Surgery at the Hassan II University Hospital of Fez over a period of 6 years from January 2010 to December 2015. Mean age of patients at diagnosis was 3 years and 2 months. The boy is to girl sex ratio was 1.8. Vesicoureteral reflux was isolated in 81% of patients and secondary or associated in 19% of patients. The most common initial manifestation was urinary tract infection (90.4%). Renal function was impaired in 54.8% of children. The treatment was based on antibiotics against diagnosed UTI (90.4%), antibiotic prophylaxis in the case of recurrence and Cohen reimplantation (97.62%). Surgical indication readily concerned all patients with grades IV and V vesicoureteral reflux (73.9%) as well as patients with impaired kidneys and 26.1% of patients after medical treatment. Early and late postoperative course was in general satisfactory: disappearance of vesicoureteral reflux in 92.68% of cases. Upper urinary tract regressed except for 9.52% of patients; 95.23% of patients had complete recovery of renal function. There was a reduction in UTI recurrence (in 19.04% of cases after surgery). The majority of parents judged positively the clinical course of their children (54.76%) after surgery.
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