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J Clin Oncol. 2009 Sep 10;27(26):4300-5. doi: 10.1200/JCO.2008.18.2501. Epub 2009 Jul 27.

Prostate cancer-specific mortality after radical prostatectomy for patients treated in the prostate-specific antigen era.

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  • 1Glickman Urological and Kidney Institute and Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, OH, USA.

Abstract

PURPOSE:

The long-term risk of prostate cancer-specific mortality (PCSM) after radical prostatectomy is poorly defined for patients treated in the era of widespread prostate-specific antigen (PSA) screening. Models that predict the risk of PCSM are needed for patient counseling and clinical trial design.

METHODS:

A multi-institutional cohort of 12,677 patients treated with radical prostatectomy between 1987 and 2005 was analyzed for the risk of PCSM. Patient clinical information and treatment outcome was modeled using Fine and Gray competing risk regression analysis to predict PCSM.

RESULTS:

Fifteen-year PCSM and all-cause mortality were 12% and 38%, respectively. The estimated PCSM ranged from 5% to 38% for patients in the lowest and highest quartiles of predicted risk of PSA-defined recurrence, based on a popular nomogram. Biopsy Gleason grade, PSA, and year of surgery were associated with PCSM. A nomogram predicting the 15-year risk of PCSM was developed, and the externally validated concordance index was 0.82. Neither preoperative PSA velocity nor body mass index improved the model's accuracy. Only 4% of contemporary patients had a predicted 15-year PCSM of greater than 5%.

CONCLUSION:

Few patients will die from prostate cancer within 15 years of radical prostatectomy, despite the presence of adverse clinical features. This favorable prognosis may be related to the effectiveness of radical prostatectomy (with or without secondary therapy) or the low lethality of screen-detected cancers. Given the limited ability to identify contemporary patients at substantially elevated risk of PCSM on the basis of clinical features alone, the need for novel markers specifically associated with the biology of lethal prostate cancer is evident.

Comment in

PMID:
19636023
[PubMed - indexed for MEDLINE]
PMCID:
PMC3651598
Free PMC Article
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