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Cancer. 2010 Jun 1;116(11):2590-5. doi: 10.1002/cncr.24974.

Prostate cancer-specific mortality and the extent of therapy in healthy elderly men with high-risk prostate cancer.

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  • 1Department of Radiation Oncology, Brigham and Women's Hospital and Dana-Farber Cancer Institute, Boston, Massachusetts, USA. khoffman2@mdanderson.org

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.

(c) 2010 American Cancer Society.

PMID:
20310055
[PubMed - indexed for MEDLINE]
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