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Related Experiment Videos

Reflux and trapping.

R M Weiss, M Schiff, B Lytton

    Radiology
    |January 11, 1976
    PubMed
    Summary
    This summary is machine-generated.

    Functional ureteral obstruction impedes urine flow but allows retrograde movement. This leads to urine reflux and trapping, particularly at the ureterovesical and ureteropelvic junctions.

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    Area of Science:

    • Urology
    • Nephrology
    • Radiology

    Background:

    • Functional ureteral obstruction is characterized by reduced antegrade urine flow.
    • The pathophysiology involves alterations in ureteral musculature and urine transport dynamics.

    Observation:

    • Urine can move retrograde (backward) through an obstructed ureteral segment.
    • Reduced musculature is a key feature of the obstructing area.

    Findings:

    • The combination of decreased antegrade flow and retrograde urine traversal results in reflux with trapping.
    • Radiographic evidence confirms this phenomenon at the ureterovesical and ureteropelvic junctions.

    Implications:

    • Understanding reflux with trapping is crucial for diagnosing and managing ureteral obstruction.
    • This mechanism may contribute to kidney damage and warrants further investigation in clinical practice.