Does radical prostatectomy in the presence of positive pelvic lymph nodes enhance survival?

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Abstract
A retrospective review was performed on all patients with stage D1 prostate cancer treated at Duke University Medical Center between 1975 and 1989. A total of 156 patients underwent staging pelvic lymph-node dissection for clinically organ-confined prostate cancer (stage A or B) but were found to have disease metastatic to the pelvic lymph nodes (stage D1). Of this population, 42 patients also underwent radical prostatectomy (group 1), leaving 114 who did not have their prostate removed (group 2). The median cancer-specific survival was 11.2 years for group 1 versus 5.8 years for group 2 (P=0.005). In patients with one or two positive lymph nodes the median cancer-specific survival was 10.2 years for group 1 versus 5.9 years for group 2 (P=0.015). There was no difference in survival if three or more lymph nodes were positive. Adjuvant treatment with immediate androgen deprivation and/or postoperative radiation therapy failed to improve the survival experience. The incidence of local problems, including stricture formation, bleeding, or regrowth of cancer requiring dilation or surgical intervention (transurethral prostatectomy) averaged 9.5% in group 1 and 24.6% in group 2. These data show that patients with limited node-positive disease selected for radical prostatectomy experience a survival advantage over those denied such therapy and that this advantage is independent of adjunctive therapy.