期刊
PROSTATE
卷 83, 期 11, 页码 1068-1075出版社
WILEY
DOI: 10.1002/pros.24548
关键词
biochemical relapse-free survival; brachytherapy; HDR; LDR; prostate cancer; relapse
This study compared the clinical outcomes of high-dose-rate (HDR) and low-dose-rate (LDR) brachytherapy for primary prostate cancer, and found that LDR brachytherapy had better biochemical relapse-free survival and overall survival rates compared to HDR brachytherapy.
PurposeTo compare the clinical outcomes of single-fraction high-dose-rate (HDR) brachytherapy and single-fraction low-dose-rate (LDR) brachytherapy as the sole treatment for primary prostate cancer. Material and MethodsA quasi-randomized study that allocated, from March 2008 to February 2012, 129 low and intermediate risk prostate cancer patients to one single-fraction HDR of 19 Gy (61 patients) or to a 145 Gy I-125 LDR permanent implant (68 patients. Biochemical relapse-free survival (bRFS) and overall survival (OS) were compared using the Kaplan-Meier method and Cox regression analysis. ResultsAfter a median follow-up of 72 months in the HDR group, 26 patients relapsed, and after a median follow-up of 84 months in the LDR group, 7 patients relapsed (p < 0.0001). The 5-year bRFS was significantly better for the LDR group than for the HDR group (93.7% and 61.1%, respectively) (p < 0.0001). The 5-year OS also was significantly better in the LDR group (95.5% vs. 89.9%) (p = 0.0436). ConclusionsPermanent LDR prostate implant brachytherapy offers better clinical outcomes than single-fraction HDR for prostate cancer.
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