Favorable clinical outcomes of three-dimensional computer-optimized high-dose-rate prostate brachytherapy in the management of localized prostate cancer. Academic Article uri icon

Overview

abstract

  • PURPOSE: To report PSA relapse-free survival and toxicity outcomes of prostate cancer patients who have undergone three-dimensional computer-optimized high-dose-rate (HDR) brachytherapy with external beam radiotherapy as definitive treatment. METHODS AND MATERIALS: One hundred five patients consecutively treated between 1998 and 2004 are reported. All patients were treated with HDR boost with lr 192 (5.5-7.0 Gy), based upon postimplant CT three-dimensional treatment planning using an in-house treatment plan optimization algorithm. Three-dimensional conformal external beam radiotherapy (45-50.4 Gy) was also administered 3 weeks after the HDR procedure. Toxicity was measured using National Cancer Institutes Common Toxicity Criteria and International Prostate Symptom Score indices. RESULTS: With a median followup of 44 months (8-79 months), the 5-year PSA relapse-free survival outcomes for low, intermediate and high-risk patients were 100%, 98%, and 92%, respectively, Median urinary toxicity, and 93% of patients denied rectal problems at the time of last followup. Erectile dysfunction was noted in 47% patients at the time of last followup, but overall 80% were able to achieve vaginal penetration when those who responded to sildenafil were included. CONCLUSION: Computer-optimized three-dimensional HDR prostate brachytherapy provides excellent disease control for even high risk localized prostate cancer. Significant toxicity has been minimal.

publication date

  • January 1, 2006

Research

keywords

  • Imaging, Three-Dimensional
  • Prostatic Neoplasms
  • Radiotherapy Planning, Computer-Assisted
  • Tomography, X-Ray Computed

Identity

Scopus Document Identifier

  • 33746041768

Digital Object Identifier (DOI)

  • 10.1016/j.brachy.2006.03.004

PubMed ID

  • 16864067

Additional Document Info

volume

  • 5

issue

  • 3