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Patient-reported long-term rectal function after permanent interstitial brachytherapy for clinically localized
Peter F Orio1, Gregory S Merrick, Robert W Galbreath
1Brigham and Women's Hospital, Dana Farber Cancer Institute, Harvard University, Boston, MA, USA.
Brachytherapy
|May 8, 2012
Summary
Long-term rectal function after prostate brachytherapy is generally favorable. Most patients report stable or improved bowel function, with few experiencing significant issues. Careful use of supplemental radiation may enhance outcomes.
Area of Science:
- Urology
- Radiation Oncology
Background:
- Prostate brachytherapy is a common treatment for localized prostate cancer.
- Long-term outcomes, particularly regarding quality of life, are crucial for patient management.
Purpose of the Study:
- To assess the long-term effects of prostate brachytherapy on rectal function.
- To evaluate the impact of supplemental therapies on rectal function after brachytherapy.
Main Methods:
- Prospective evaluation of rectal function using the rectal function assessment score (R-FAS) in 129 prostate brachytherapy patients.
- Median follow-up of 14 years.
- Analysis of clinical, treatment, and dosimetric parameters influencing bowel function.
Main Results:
- The cohort's R-FAS was 3.35, indicating favorable long-term rectal function.
- 78.3% of patients reported unchanged bowel function; only 7.8% reported worsening.
- Preimplant bowel movements, tobacco use, and diabetes correlated with R-FAS. Supplemental external beam radiation was linked to poorer perceived rectal quality of life.
Conclusions:
- Prostate brachytherapy offers favorable long-term rectal function for most patients.
- Minimizing supplemental external beam radiation, with attention to rectal doses, may optimize long-term outcomes.
