Prognostic factors for and outcome of locally advanced prostate cancer after radical prostatectomy
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Study Type - Therapy (case series) Level of Evidence 2b Objective To present the outcomes of cT3N0M0 prostate cancer after radical prostatectomy (RP) and determine the prognostic factors in biochemical progression-free survival (BPFS), clinical progression-free survival (CPFS), cancer-specific survival (CSS) and overall survival (OS) after long-term follow-up of 10 years. Patients and Methods In all, 164 patients who were assessed as clinical T3 prostate cancer by digital rectal examination (DRE), underwent RP and bilateral pelvic lymphadenectomy at Erasmus MC between 1977 and 2004 without neoadjuvant treatment. Preoperative staging computed tomography showed no signs of metastasis. Kaplan-Meier curves were constructed to show BPFS, CPFS, CSS and OS. Cox proportional hazard analysis was used to determine prognostic indicators of disease progression. Results The mean (range) follow-up was 100 (1-291) months. At 5, 10 and 15 years, BPFS was 50.4%, 43.0% and 38.3%, respectively, CPFS was 79.7%, 68.7% and 63.5%, CSS was 93.4%, 80.3% and 66.3%, and OS was 87.1%, 67.2% and 37.4%. Multivariate Cox proportional hazard analysis showed that surgical tumour grade, margin and node status were significant factors in CPFS and CSS. Surgical tumour grade, node status and preoperative PSA level were significant factors in BPFS Conclusion RP for clinically locally advanced prostate cancer may produce acceptable long-term BPFS, which is comparable with published results of radiotherapy with adjuvant endocrine therapy. Pathological tumour grade and node status were significant predicting factors in BPFS and CPFS, as well as tumour-specific survival after 100 months follow-up.