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Related Experiment Videos

Whitaker revisited

S H Ripley, J J Somerville

    British Journal of Urology
    |December 1, 1982
    PubMed
    Summary
    This summary is machine-generated.

    Researchers modified the Whitaker test for better upper urinary tract perfusion studies. The new method, measuring flow during constant pressure, offers improved reproducibility and simpler equipment needs for enhanced diagnostic accuracy.

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    Urological research·1984

    Area of Science:

    • Urology
    • Nephrology
    • Surgical Techniques

    Background:

    • Perfusion studies of the upper urinary tract often lack reproducibility.
    • The standard Whitaker technique presents challenges with equipment and data interpretation.

    Purpose of the Study:

    • To develop a modified Whitaker technique for improved reproducibility in upper urinary tract perfusion studies.
    • To compare the modified technique with the standard Whitaker test in a canine model.

    Main Methods:

    • A novel modification of the Whitaker technique was developed, measuring flow rate during constant pressure infusion.
    • The modified technique was compared against the standard Whitaker test in anesthetized dogs with normal ureters.

    Main Results:

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    • The modified technique demonstrated superior reproducibility compared to the standard Whitaker test.
    • The modified method requires less sophisticated equipment and allows for greater flow rates at given pressure measurements.
    • Potential reasons for improved results include avoiding motor-driven syringe pumps and excessive ureteric smooth muscle stimulation.

    Conclusions:

    • The modified Whitaker technique offers a more reproducible and practical approach to upper urinary tract perfusion assessment.
    • This modification simplifies the procedure and enhances the reliability of diagnostic results.
    • Further investigation into ureteric smooth muscle response during perfusion studies is warranted.