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Updated: May 5, 2026

Transmesenteric Laparoscopic Pyeloplasty in Trendelenburg Position for Horseshoe Kidney with Hydronephrosis
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Primary obstructed megaureter (POM) in children.

V Nagy, M Baca, A Boor

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    Summary
    This summary is machine-generated.

    Early surgical intervention for non-refluxing posterior urethral valves (PUV) in children can significantly reduce hydronephrosis and preserve kidney function. This approach minimizes long-term kidney damage compared to conservative management.

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    Area of Science:

    • Pediatric Urology
    • Nephrology
    • Surgical Innovation

    Background:

    • Posterior urethral valves (PUV) are a common congenital anomaly in male infants, potentially leading to severe urinary tract damage.
    • Management strategies for non-refluxing PUV include surgical intervention and conservative approaches, with varying outcomes.
    • Assessing the long-term impact on renal function and hydronephrosis is crucial for optimal patient care.

    Purpose of the Study:

    • To compare the efficacy of surgical versus conservative treatment for non-refluxing posterior urethral valves (PUV) in children.
    • To evaluate the impact of different treatment modalities on hydronephrosis and separate kidney function.
    • To identify optimal management strategies for preserving renal function in infants with PUV.

    Main Methods:

    • Retrospective analysis of 45 children (52 ureters) treated for non-refluxing PUV between 2000-2009.
    • Group I: Surgical treatment (24 children, 26 ureters); Group II: Conservative treatment (21 children, 26 ureters).
    • Comprehensive assessments included urine analysis, ultrasonography (USG), DTPA99mTc scans, biochemical tests, and micturating cystourethrography.

    Main Results:

    • Surgical treatment showed significant differences in hydronephrosis grades and T1/2 prolongation compared to conservative management.
    • In the surgical group, 54.2% had adjusted health conditions and 20.85% showed improvement on DTPA99mTc scans.
    • The conservative group demonstrated significant differences in hydronephrosis grades and ureteral dilation, with 52.39% adjusted and 28.57% improved kidney function.

    Conclusions:

    • Early surgical treatment for non-refluxing PUV is associated with better outcomes in preserving kidney function.
    • Surgical intervention helps minimize renal damage and prevent future complications in pediatric patients with impaired kidney function.
    • Timely surgical management is recommended for non-refluxing PUV to safeguard long-term renal health.