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Posterior urethral valves: current concepts in diagnosis and treatment
Insights
Early valve resection is effective for pediatric posterior urethral valves, leading to improved blood pressure and stable kidney function without permanent urinary diversion. Long-term observation focusing on renal health is recommended over imaging.
Area of Science:
- Pediatric Urology
- Nephrology
- Surgical Management
Background:
- Posterior urethral valves (PUV) are a common cause of bladder outlet obstruction in male infants.
- Management strategies have evolved, with a focus on preserving renal function.
Purpose of the Study:
- To evaluate the long-term outcomes of different treatment approaches for pediatric posterior urethral valves.
- To assess the correlation between treatment modality and renal function, blood pressure, and upper tract changes.
Main Methods:
- Retrospective review of 10 pediatric cases of posterior urethral valves treated between 1969 and present.
- Comparison of outcomes between early upper tract diversion and valve resection with observation.
Main Results:
- No deaths or permanent urinary diversions were observed in either treatment group.
- All hypertensive patients became normotensive postoperatively.
- Creatinine clearance stabilized or improved in 9 out of 10 cases.
- Upper tract dilatation resolved slowly, with urogram findings not consistently correlating with improved renal clearance.
Conclusions:
- Early valve resection or fulguration followed by observation is a viable treatment for pediatric posterior urethral valves.
- Emphasis should be placed on monitoring renal function, blood pressure, and infection rather than solely on urographic appearance.
Abstract:
Since 1969 we have treated 10 pediatric cases of posterior urethral valves. Of these patients 5 underwent early upper tract diversion and 5 underwent valve resection and observation. There were no deaths and no patients with permanent urinary diversion. All patients in whom blood pressure was recorded were hypertensive preoperatively and normotensive postoperatively. Creatinine clearances stabilized or improved in all but 1 case, although the urogram findings did not correlate well with improved clearance. Dilatation of the upper tracts resolved slowly in all cases. The current treatment should include early valve resection or fulguration followed by observation with emphasis on renal function, blood pressure and infection as opposed to the urographic appearance of the collecting system.