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  • Title: Radical prostatectomy represents an effective treatment in patients with specimen-confined high pathological Gleason score prostate cancer.
    Author: Lughezzani G, Gallina A, Larcher A, Briganti A, Capitanio U, Suardi N, Lista G, Abrate A, Sangalli MN, Buffi N, Cestari A, Guazzoni G, Rigatti P, Montorsi F.
    Journal: BJU Int; 2013 May; 111(5):723-30. PubMed ID: 22487441.
    Abstract:
    UNLABELLED: WHAT'S KNOWN ON THE SUBJECT? AND WHAT DOES THE STUDY ADD?: To date, only a few studies have addressed the long-term oncological outcomes of radical prostatectomy (RP) in patients with pathological Gleason score ≥ 8 prostate cancer. According to these reports, some individuals with pathological Gleason score ≥ 8 may benefit from RP, with cancer-control outcomes comparable with those of patients with low- and intermediate-risk prostate cancer. The presence of pathological Gleason score 8-10 represents a poor prognostic factor in the outcome of men with prostate cancer. However, in patients with specimen-confined disease, RP and bilateral PLND provided long-term cancer-control outcomes similar to those of patients with more favourable disease characteristics. OBJECTIVES: To evaluate the outcomes of patients with pathological Gleason score 8-10 prostate cancer subjected to radical prostatectomy (RP). To determine the prognostic factors associated with cancer-specific survival (CSS) in this subset of patients. PATIENTS AND METHODS: The study included 580 consecutive patients with pathological Gleason sum 8-10 prostate cancer treated with RP and pelvic lymph node dissection (PLND) at a single European institution between July 1988 and April 2010. All patients had detailed pathological and follow-up data. Pathological Gleason score was determined by a single expert genitourinary pathologist. Biochemical recurrence (BCR) was defined PSA concentration of ≥ 0.2 ng/mL and rising. Kaplan-Meier plots were used to graphically explore BCR-free survival as well as CSS and overall survival (OS) rates. Moreover, univariable and multivariable Cox regression models were fitted to test the predictors of CSS. RESULTS: The mean (median, range) age at surgery was 66.1 (66.4, 41-85) years. The mean (median, range) total PSA concentration was 29.6 (11.1, 0.5-1710) ng/mL. Pathological Gleason score was 8 in 238 (41.0%), 9 in 330 (56.9%) and 10 in 12 (2.1%) patients. Overall, 119 (20.5%), 124 (21.4%), 281 (48.4%) and 56 (9.7%) patients had pT2, pT3a, pT3b and pT4 prostate cancer, respectively. Overall, 275 (47.4%) had LN invasion, while 150 (25.1%) patients had specimen-confined disease (defined as pT2cR0 pN0 or pT3aR0 pN0 prostate cancer). The mean (median, range) follow-up was 53 (47, 1-226) months. At 5 and 10 years after RP, BCR-free survival was 76.7% and 49.6%, respectively. Similarly, the 5- and 10-year CSS rates were 87.3% and 69.5%, respectively. Patients with specimen-confined disease (P < 0.001) and patients with negative LNs (P = 0.012) had significantly better CSS rates than their counterparts with less favourable pathological characteristics. In multivariable Cox regression models, only the presence of specimen-confined disease achieved independent predictor status (P = 0.001). CONCLUSION: Presence of high Gleason score at RP represents a poor prognostic factor in the outcome of patients with prostate cancer. However, RP provides excellent long-term cancer control outcomes in the subset of patients with specimen-confined disease.
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