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A New Technique for Treating Low-risk Prostate Cancer—Super Active Surveillance
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Long Term Patient Reported Urinary Function Following External Beam Radiotherapy for Prostate Cancer.

S Chin1, A J Hayden1, V Gebski2

  • 1Sydney West Radiation Oncology Network, Westmead/Nepean Hospitals, Sydney, NSW, Australia.

Clinical Oncology (Royal College of Radiologists (Great Britain))
|February 17, 2017
PubMed
Summary
This summary is machine-generated.

External beam radiotherapy (EBRT) for prostate cancer generally leads to stable or improved urinary function and quality of life. Patients with more severe baseline symptoms experienced a lower risk of persistent worsening after EBRT.

Keywords:
External beam radiotherapylower urinary tract symptomsprostate cancerquality of life

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Area of Science:

  • Oncology
  • Radiation Oncology
  • Urology

Background:

  • Localized prostate cancer treatment often involves external beam radiotherapy (EBRT).
  • Long-term patient-reported outcomes regarding urinary function and quality of life (uQoL) after EBRT are crucial for treatment evaluation.
  • Understanding post-treatment urinary dynamics is essential for patient counseling and decision-making.

Purpose of the Study:

  • To assess long-term patient-reported urinary function and urinary-related quality of life (uQoL) following definitive external beam radiotherapy (EBRT) for localized prostate cancer.
  • To analyze the impact of baseline urinary symptom severity on post-treatment outcomes.
  • To provide data for counseling men undergoing prostate cancer treatment.

Main Methods:

  • A cohort of 574 men treated with definitive prostate EBRT (70-78 Gy) with or without androgen deprivation therapy (ADT) between 2000-2009 was studied.
  • Patients were evaluated using the International Prostate Symptom Score (IPSS) at baseline and at intervals post-treatment.
  • Median follow-up was 44 months, with analysis focusing on changes in IPSS and uQoL.

Main Results:

  • The majority of patients experienced stable or improved urinary symptoms and uQoL post-EBRT.
  • Patients with moderate to severe baseline urinary symptoms (IPSS 8-35) showed significant improvement or stability at 48 months.
  • The cumulative risk of persistent urinary symptom increase at 48 months decreased with higher baseline IPSS scores (16% mild, 10% moderate, 6% severe).
  • Good uQoL reported at baseline increased from 94% to 95% for mild, 54% to 83% for moderate, and 11% to 69% for severe baseline IPSS groups at 48 months.

Conclusions:

  • Definitive EBRT for prostate cancer, with or without ADT, generally results in stable or improved urinary function and uQoL.
  • Men with worse baseline urinary symptoms or uQoL demonstrated a decreased risk of persistent worsening post-treatment.
  • Baseline urinary status is a valuable factor for predicting post-EBRT outcomes and for patient counseling during treatment decisions.