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Related Experiment Videos

Renal vein valves.

J A Oleaga, E J Ring, D Freiman

    AJR. American Journal of Roentgenology
    |May 1, 1978
    PubMed
    Summary
    This summary is machine-generated.

    Renal venography revealed valves in 7 of 33 cases, primarily on the left side. These venous valves can complicate procedures and aid in surgical planning for distal splenorenal shunts.

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    Area of Science:

    • Vascular anatomy
    • Interventional radiology

    Background:

    • Renal vein valves are anatomical variations.
    • Their incidence and precise location are not well-established.
    • Potential impact on renal venography and surgical procedures is recognized.

    Purpose of the Study:

    • To determine the incidence of renal vein valves.
    • To describe the anatomical location of identified valves.
    • To assess the clinical significance of these valves in renal venography and surgical interventions.

    Main Methods:

    • Retrospective review of 33 renal venograms.
    • Radiographic identification and characterization of venous valves.
    • Analysis of valve location relative to renal vein tributaries and the inferior vena cava.

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    Main Results:

    • Valves were identified in 7 out of 33 renal venograms (21.2%).
    • Left renal venograms showed a higher incidence (5/22) compared to right (2/11).
    • Right-sided valves were at the renal vein-inferior vena cava junction; left-sided valves varied in location, including tributaries.

    Conclusions:

    • Renal vein valves are demonstrable radiographically.
    • Their presence can pose technical challenges during renal venography.
    • Valve location is important for surgical planning, particularly for distal splenorenal shunts.