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Long-term outcomes of LDR-brachytherapy for localized prostate cancer
Lauri Mäkelä1, Anssi Pétas2, Arto Mikkola2
1Comprehensive Cancer Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
Introduction:
This retrospective study aims to evaluate the long-term efficacy and urinary toxicity of LDR-brachytherapy for localized prostate cancer.
Materials And Methods:
235 primary prostate cancer patients treated with LDR-brachytherapy and subsequently followed up in our center were included in this study. Biochemical relapse free survival (bRFS), overall survival (OS), and cancer-specific survival (CSS) were evaluated. Additionally, the incidence of late urinary complications was recorded.
Results:
Median follow-up time was 11,6 years. 181 patients (77%) were classified as low-risk patients, while 52 patients (22,1%) were intermediate risk. The overall bRFS was 83,8% at 5 years and 72,4% at 10 years. 5- and 10-year OS were 97,8% and 87,8% respectively. There was no statistically significant difference in bRFS or OS between different risk groups. The rate of late urinary complications was 8,9%. Volume of prostate had a statistically significant effect on bRFS, as smaller prostate volumes led to worse bRFS.
Conclusions:
This retrospective study shows that LDR brachytherapy is an effective treatment for low- and intermediate risk prostate cancer patients with relatively low but still significant risk of late urinary complications.
