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Corpus cavernosography. Pressure flow and radiography.

F A Puyau, R W Lewis

    Investigative Radiology
    |November 1, 1983
    PubMed
    Summary
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    This study on erectile dysfunction found that prominent venous drainage can prevent artificial erection in some impotent men. Evaluating pressure flow dynamics and corpus cavernosograms helps identify these cases.

    Area of Science:

    • Urology
    • Andrology
    • Medical Imaging

    Background:

    • Erectile dysfunction (ED) affects a significant number of men, impacting quality of life.
    • Understanding the underlying physiological mechanisms of ED is crucial for effective treatment.
    • Corpus cavernosography and pressure-flow studies are diagnostic tools for evaluating penile hemodynamics.

    Purpose of the Study:

    • To evaluate the role of corpus cavernosograms and pressure-flow dynamics in assessing erectile dysfunction.
    • To correlate findings from these diagnostic methods with the ability to achieve artificial erection.
    • To identify specific hemodynamic factors, such as venous drainage, contributing to impotence.

    Main Methods:

    • Twenty-eight impotent men were evaluated using corpus cavernosograms and pressure-flow dynamics.

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  • Artificial erection was induced via saline infusion, with pressure rises serving as a key criterion.
  • Cavernosograms were graded based on venous channel filling, penile tissue staining, and anatomical integrity.

    • Main Results:

    • Men with the lowest intracavernous pressure rises showed significant evidence of prominent venous drainage and failed to achieve erection.
    • Those achieving artificial erection at 120 ml/min exhibited the least evidence of venous drainage.
    • Abnormal arteriograms were present in eight patients, correlating with varying degrees of erectile response.

    Conclusions:

    • Artificial erection can be successfully induced in a subset of impotent men.
    • Prominent venous drainage is a significant factor that can prevent the development of artificial erection.
    • Corpus cavernosography and pressure-flow dynamics are valuable for diagnosing the causes of erectile dysfunction.