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Radiation Therapy for Prostate Cancer.

Hiram A Gay1, Jeff M Michalski1

  • 1Hiram A. Gay, MD, and Jeff M. Michalski, MD, MBA, is Professor and Vice Chair, Radiation Oncology, Washington University School of Medicine, St. Louis, Missouri.

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Radiotherapy provides prostate cancer cure rates comparable to surgery, with better outcomes for sexual function and urinary continence. Combining external beam and brachytherapy improves results for high-risk patients.

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Area of Science:

  • Oncology
  • Radiation Oncology
  • Urologic Oncology

Background:

  • Prostate cancer is a significant health concern in Missouri, with nearly 3000 new cases and 500 deaths annually.
  • Radiotherapy is a primary treatment option for prostate cancer, offering alternatives to surgical intervention.

Purpose of the Study:

  • To review the efficacy and side effect profiles of radiotherapy for prostate cancer.
  • To discuss the role of different radiotherapy modalities, including external beam and brachytherapy, in managing prostate cancer.
  • To emphasize the importance of timely salvage radiotherapy after prostatectomy.

Main Methods:

  • Review of current treatment guidelines and clinical evidence for prostate cancer radiotherapy.
  • Comparison of radiotherapy outcomes (cure rates, side effects) with prostatectomy.
  • Discussion of combined-modality treatments and salvage radiotherapy protocols.

Main Results:

  • Radiotherapy demonstrates cure rates similar to prostatectomy for prostate cancer.
  • Radiotherapy is associated with fewer long-term sexual side effects and minimal impact on urinary continence compared to surgery.
  • Combination therapy (external beam plus brachytherapy) enhances biochemical control in high-risk prostate cancer.
  • Prompt initiation of salvage radiotherapy post-prostatectomy is crucial.

Conclusions:

  • Radiotherapy is an effective treatment for prostate cancer, offering comparable efficacy to surgery with a favorable side effect profile.
  • Combined-modality radiotherapy represents an advanced approach for high-risk disease.
  • Adherence to timely salvage radiotherapy protocols is essential for optimizing outcomes after prostatectomy.