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  • Title: Prostate cancer-specific mortality and the extent of therapy in healthy elderly men with high-risk prostate cancer.
    Author: Hoffman KE, Chen MH, Moran BJ, Braccioforte MH, Dosoretz D, Salenius S, Katin MJ, Ross R, D'Amico AV.
    Journal: Cancer; 2010 Jun 01; 116(11):2590-5. PubMed ID: 20310055.
    Abstract:
    BACKGROUND: The risk of prostate cancer-specific mortality (PCSM) in healthy elderly men may depend on extent of treatment. The authors of this report compared the use of brachytherapy alone with combined brachytherapy, external-beam radiation to the prostate and seminal vesicles, and androgen-suppression therapy (CMT) in this population. METHODS: The study cohort comprised 764 men aged > or = 65 years with high-risk prostate cancer (T3 or T4N0M0, prostate-specific antigen >20 ng/mL, and/or Gleason score 8-10) who received either brachytherapy alone (n = 206) or CMT (n = 558) at the Chicago Prostate Cancer Center or at a 21st Century Oncology facility. Men either had no history of myocardial infarction (MI) or had a history of MI treated with a stent or surgical intervention. Fine and Gray regression analysis was used to identify the factors associated with PCSM. RESULTS: The median patient age was 73 years (interquartile range, 70-77 years). After a median follow-up of 4.9 years, 25 men died of prostate cancer. After adjusting for age and prostate cancer prognostic factors, the risk of PCSM was significantly less (adjusted hazard ratio, 0.29; 95% confidence interval, 0.12-0.68; P = .004) for men who received CMT than for men who received brachytherapy alone. Other factors that were associated significantly with an increased risk of PCSM included a Gleason score of 8 to 10 (P = .017). CONCLUSIONS: Elderly men who had high-risk prostate cancer without cardiovascular disease or with surgically corrected cardiovascular disease had a lower risk of PCSM when they received CMT than when they received brachytherapy alone. These results support aggressive locoregional treatment in healthy elderly men with high-risk prostate cancer.
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