Clinical Scenario:
A 3-year-old girl is investigated after two episodes of culture-proven febrile urinary tract infection, both treated appropriately. MCU demonstrates unilateral grade II vesicoureteric reflux. DMSA scan shows normal renal perfusion without cortical scarring. She has normal blood pressure and renal function. Her parents are concerned about the possibility of renal damage and ask whether surgery is required.
What is the most appropriate management?
A. Continue antibiotic prophylaxis with surveillance
B. Endoscopic injection of a bulking agent
C. Immediate ureteric reimplantation
D. Nephrectomy of the affected kidney
E. No follow-up is required
Correct answer & Explanation:
Correct answer: A. Continue antibiotic prophylaxis with surveillance
Explanation
This child has low-grade (grade II) unilateral VUR, normal renal function, no renal scarring, and no evidence of ongoing renal injury. In this setting, conservative management with appropriate surveillance is preferred over immediate surgical correction.
VUR, particularly lower-grade reflux, may resolve spontaneously with time. The main objectives of management are to prevent recurrent febrile UTIs and renal injury while avoiding unnecessary invasive treatment. Continuous antibiotic prophylaxis can be considered, particularly in a child with a history of recurrent febrile UTI.
Why the other options are incorrect
- B. Endoscopic injection — Incorrect: Endoscopic correction is an accepted treatment option for VUR, but immediate intervention is not justified in this child with grade II reflux and no renal scarring.
- C. Immediate ureteric reimplantation — Incorrect: Open surgery is highly effective but is generally reserved for selected children in whom conservative management is unsuccessful or who have significant risk factors such as breakthrough febrile UTIs or renal injury.
- D. Nephrectomy — Incorrect: There is no indication for nephrectomy; the kidney is structurally and functionally preserved.
- E. No follow-up — Incorrect: A child with VUR and previous febrile UTIs requires clinical surveillance, with attention to recurrent infection and renal health.
Exam Pearl
Low-grade VUR + no renal scarring + clinically stable child → think conservative management, not immediate surgery.
Conversely, breakthrough febrile UTIs, progressive renal scarring or significant renal functional deterioration despite appropriate medical management should make you consider definitive correction.
Reference: American Urological Association, Management and Screening of Primary Vesicoureteral Reflux in Children: AUA Guideline. The guideline notes that surgical treatment is an option when intervention is appropriate, while management should take into account reflux grade, febrile UTIs and renal injury.
AUA Vesicoureteral Reflux Guideline
