Radical retropubic prostatectomy for prostate cancer with microscopic bladder neck involvement: survival and prognostic implications.
OBJECTIVE
To report the oncological outcome of 106 patients who had locally advanced prostate cancer with microscopic bladder neck invasion, identified in a series of 1129 patients surgically treated with retropubic radical prostatectomy over a 12-year period.


METHODS
All specimens were reviewed. Microscopic bladder neck invasion was defined as the presence of neoplastic cells within the smooth muscle bundles of the bladder neck, with no accompanying prostatic glandular tissue on the corresponding slide. Survival was analysed for different subgroups in relation to several variables.


RESULTS
The follow-up (median 7.2 years, mean 6.68, range 0.3-14) was available for 106 patients with microscopic bladder neck invasion. Seminal vesicle invasion was present in 69.8% of the cases, lymph node involvement in 29.2%, apex infiltration in 31.8%, and positive surgical margins in 23.6%. Biochemical progression occurred in 61 (57.5%) patients, and 25 of them died from cancer. The mean (sd) biochemical progression-free survival was 0.68 (0.05), 0.59 (0.05), 0.40 (0.05) and 0.38 (0.05) at 1, 2, 5 and 10 years, respectively. Age, Gleason score and lymph node invasion were independent prognostic factors on multivariate analysis. Overall and cancer-specific survival rates were 0.75 (0.04) and 0.80 (0.04) at 5 years and 0.57 (0.04) and 0.75 (0.04) at 10 years, respectively. Univariate analysis showed that seminal vesicle invasion, lymph node involvement and surgical Gleason score > or =8 significantly increased the risk of death. On multivariate analysis only the surgical Gleason score had an independent prognostic role with regard to overall survival (P = 0.01; odds ratio 2.82, 95% confidence interval 1.2-6.4) and cancer-specific survival (P < 0.001; 8.6, 2.5-28.8).


CONCLUSIONS
In this series, overall and cancer-specific survival rates were comparable to those reported for surgically treated cT3 prostate cancers. The lack of need for external urinary diversion during the entire follow-up significantly contributed to the patients' quality of life.
Department of Urology, University of Florence, Italy. gordon@unifi.it
Donata
D
Villari
Gabriella
G
Nesi
Alessandro
A
Della Melina
Domenico
D
Palli
Marco
M
Ceroti
Marco
M
Castigli
Maria Teresa
MT
Filocamo
Vincenzo
V
Li Marzi
Giulio
G
Nicita
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D004812:Epidemiologic Methods; D006801:Humans; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D011379:Prognosis; D011468:Prostatectomy / Q000379:methods*; D011471:Prostatic Neoplasms / Q000401:mortality / Q000473:pathology* / Q000601:surgery; D001749:Urinary Bladder Neoplasms / Q000401:mortality / Q000473:pathology* / Q000556:secondary / Q000601:surgery