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Prognostic value of seminal vesicle involvement due to prostate cancer in radical prostatectomy specimens.

Abstract：

OBJECTIVE:To study the influence, in terms of prognosis, of the finding of seminal vesicle involvement in patients with prostate adenocarcinoma treated with radical prostatectomy. MATERIAL AND METHOD:We reviewed a series of patients with seminal vesicle involvement with clinically localized prostate adenocarcinoma who underwent radical prostatectomy between 1989 and 2009, focusing on their clinical-pathological characteristics, biochemical progression-free survival (BPFS) and specific survival (SS). We assessed the variables that influenced BPFS and designed a risk model. RESULTS:A total of 127 out of 1,132 patients who underwent surgery (11%) presented seminal vesicle invasion (i.e., pT3b). In the multivariate study of the entire series (Cox model), pT3b affects the BPFS (HR: 2; 95% CI: 1.4-3.3; P=.001). Other influential factors were the affected borders, initial prostate-specific antigen levels, pathological Gleason score and the presence of palpated tumor. The pT3b tumors have poorer clinical-pathological variables when compared with pT2 and pT3a tumors. Sixty-five percent of the patients evidenced biochemical progression. The BPFS was significantly poorer for pT3b (40 ± 4% and 28 ± 4% at 5 and 10 years, respectively) than for pT2 and pT3a (P<.0001). The SS was also poorer in patients with pT3b tumors (91 ± 2% and 76 ± 4% at 5 and 10 years, respectively) (P<.0001). The predictors within the pT3b patient group were: PSA levels >10 ng/mL (HR: 1.9; 95% CI: 1.04-3.6; P=.04) and pathological Gleason score 8-10 (HR: 2.1; 95% CI: 1.2-3.5; P=.03). We designed a risk model that accounts for the variables involved, which entails 2 groups with different BPFS (P=.004): Group 1 (0-1 variable), with a BPFS of 46 ± 7% and 27 ± 8% at 5 and 10 years, respectively; and Group 2 (2 variables), with a BPFS of 14 ± 7% and 5 ± 5% at 5 and 10 years, respectively. CONCLUSION:Seminal vesicle involvement severely and negatively affects the BPFS and SS. We designed a risk model with the independent influential variables in BPFS (pathological Gleason score 8-10 and PSA levels >10 ng/mL). This model confirms that pT3b tumors are a heterogeneous group, which includes an important group with better prognosis when surgical treatment is performed.

journal_name

Actas Urol Esp

journal_title

Actas urologicas espanolas

authors

Algarra R,Barba J,Merino I,Tienza A,Tolosa E,Robles JE,Zudaire J

doi

10.1016/j.acuro.2014.05.009

subject

Has Abstract

pub_date

2015-04-01 00:00:00

pages

144-53

issue

eissn

0210-4806

issn

1699-7980

pii

S0210-4806(14)00202-2

journal_volume

pub_type

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Prognostic value of seminal vesicle involvement due to prostate cancer in radical prostatectomy specimens.