Prostate Cancer Prevention (PDQ®): Prevention - Health Professional Information [NCI] - Significance
Treatment options available for prostate cancer include radical prostatectomy, external-beam radiation therapy, brachytherapy, cryotherapy, focal ablation, androgen deprivation with luteinizing hormone-releasing hormone analogs and/or antiandrogens, intermittent androgen deprivation, cytotoxic agents, and active surveillance. Of all the means of management, only radical prostatectomy has been tested in a randomized clinical trial to assess survival benefit. In this study, prostatectomy was found to be superior to surveillance in men with localized prostate cancer in terms of reduced rates of metastases (relative hazard [RH] = 0.63; 95% confidence interval [CI], 0.41–0.96) and disease specific (RH = 0.5; 95% CI, 0.27–0.91) and overall mortalities. The relative efficacy of radical prostatectomy to the other forms of treatment has not been adequately addressed. Confounding issues in the treatment of prostate cancer include side effects with treatment, inability to predict the natural history of a given cancer, patient comorbidity that may affect an individual's likelihood of surviving long enough to be at risk for disease morbidity and mortality, and an increasing body of evidence suggesting that with careful PSA monitoring following treatment, a substantial fraction of patients may suffer disease recurrence .
Because of considerable uncertainty regarding the efficacy of treatment and the difficulty with selecting patients for whom there is a known risk of disease progression, opinion in the medical community is divided regarding screening for carcinoma of the prostate. While both digital rectal examination and PSA screening have demonstrated reasonable performance characteristics (sensitivity, specificity, and positive predictive value) for the early detection of prostate cancer, conflicting outcomes of randomized trials examining the impact of screening on mortality has led to some organizations to recommend for and others to recommend against screening.[16,17]
The tremendous impact of prostate cancer on the U.S. population and the financial burden of the disease for both patients and society have led to an increased interest in primary disease prevention.
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