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Erectile function after permanent prostate brachytherapy.

Gregory S Merrick1, Wayne M Butler, Robert W Galbreath

  • 1Schiffler Cancer Center, Wheeling Hospital, Wheeling, WV 26003-6300, USA. schifonc@wheelinghosp.com

International Journal of Radiation Oncology, Biology, Physics
|April 18, 2002
PubMed
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Permanent prostate brachytherapy resulted in a 39% potency preservation rate after 6 years. Pretreatment potency, supplemental external beam radiotherapy (EBRT), and diabetes were key factors. Sildenafil improved outcomes, with 92% potency when used.

Area of Science:

  • Urology
  • Radiation Oncology
  • Sexual Medicine

Background:

  • Permanent prostate brachytherapy is a treatment for prostate cancer.
  • Erectile dysfunction (ED) is a potential side effect impacting quality of life.
  • Understanding factors influencing post-treatment erectile function is crucial.

Purpose of the Study:

  • To determine the incidence of potency preservation after permanent prostate brachytherapy.
  • To evaluate the impact of clinical and treatment parameters on erectile function.
  • To assess the efficacy of sildenafil for brachytherapy-induced ED.

Main Methods:

  • A cohort of 425 patients undergoing permanent prostate brachytherapy was studied.
  • 209 potent patients completed the International Index of Erectile Function (IIEF) questionnaire.

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  • Clinical factors (age, diabetes) and treatment parameters (EBRT, radiation dose) were analyzed.

    • Main Results:

    • A 6-year follow-up showed a 39% potency preservation rate (IIEF score ≥11).
    • Pretreatment potency, supplemental external beam radiotherapy (EBRT), and diabetes were significant predictors.
    • Sildenafil use resulted in an 85% favorable response rate, improving overall potency to 92% with its use.

    Conclusions:

    • Brachytherapy-induced ED may be more common than previously reported.
    • Pretreatment erectile function, supplemental EBRT, and diabetes significantly influenced outcomes.
    • Sildenafil is effective in managing brachytherapy-induced ED, significantly improving potency rates.