Low-dose-rate brachytherapy for patients with transurethral resection before implantation in prostate cancer. Longterm results

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Vol. 42 (1): 47-52, January – February, 2016

doi: 10.1590/S1677-5538.IBJU.2014.0531


ORIGINAL ARTICLE

Low-dose-rate brachytherapy for patients with transurethral resection before implantation in prostate cancer. Longterm results

Pedro J. Prada 1, Javier Anchuelo 1, Ana Garcia Blanco 1, Gema Paya 1, Juan Cardenal 1, Enrique Acuna 1, Maria Ferri 1, Andres Vazquez 2, Maite Pacheco, Jesica Sanchez 2
1 Department of Radiation Oncology, Hospital Universitario Marqués de Valdecilla, Santander, Cantabria, Spain; 2 Department of Radiation Physics, Hospital Universitario Marqués de Valdecilla, Santander, Cantabria, Spain


ABSTRACT
Objectives: We analyzed the long-term oncologic outcome for patients with prostate cancer and transurethral resection who were treated using low-dose-rate (LDR) prostate brachytherapy.
Methods and Materials: From January 2001 to December 2005, 57 consecutive patients were treated with clinically localized prostate cancer. No patients received external beam radiation. All of them underwent LDR prostate brachytherapy. Biochemical failure was defined according to the “Phoenix consensus”. Patients were stratified as low and intermediate risk based on The Memorial Sloan Kettering group definition.
Results: The median follow-up time for these 57 patients was 104 months. The overall survival according to Kaplan-Meier estimates was 88% (±6%) at 5 years and 77% (±6%) at 12 years. The 5 and 10 years for failure in tumour-free survival (TFS) was 96% and respectively (±2%), whereas for biochemical control was 94% and respectively (±3%) at 5 and 10 years, 98% (±1%) of patients being free of local recurrence. A patient reported incontinence after treatment (1.7%). The chronic genitourinary complains grade I were 7% and grade II, 10%. At six months 94% of patients reported no change in bowel function.
Conclusions: The excellent long-term results and low morbidity presented, as well as the many advantages of prostate brachytherapy over other treatments, demonstrates that brachytherapy is an effective treatment for patients with transurethral resection and clinical organ-confined prostate cancer.

Keywords: Brachytherapy; Transurethral Resection of Prostate; Prostatic Neoplasms

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