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.
PURPOSE: To report PSA relapse-free survival and toxicity outcomes of prostate cancerpatients 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.
Authors: Nicholas G Zaorsky; Brian J Davis; Paul L Nguyen; Timothy N Showalter; Peter J Hoskin; Yasuo Yoshioka; Gerard C Morton; Eric M Horwitz Journal: Nat Rev Urol Date: 2017-06-30 Impact factor: 14.432
Authors: Chiara Marigliano; Olivio F Donati; Hebert Alberto Vargas; Oguz Akin; Debra A Goldman; James A Eastham; Michael J Zelefsky; Hedvig Hricak Journal: Eur J Radiol Date: 2013-09-22 Impact factor: 3.528
Authors: Michael J Zelefsky; James A Eastham; Angel M Cronin; Zvi Fuks; Zhigang Zhang; Yoshiya Yamada; Andrew Vickers; Peter T Scardino Journal: J Clin Oncol Date: 2010-02-16 Impact factor: 44.544
Authors: Brent D Weinberg; Ravi B Patel; Hanping Wu; Elvin Blanco; Carlton C Barnett; Agata A Exner; Gerald M Saidel; Jinming Gao Journal: Med Biol Eng Comput Date: 2008-06-04 Impact factor: 2.602
Authors: Antonio Cassio Assis Pellizzon; João Salvajoli; Paulo Novaes; Maria Maia; Ricardo Fogaroli; Doglas Gides; Rodrigues Horriot Journal: Int J Med Sci Date: 2008-06-04 Impact factor: 3.738