Prognostic value of radical cystoprostatectomy in men with bladder cancer infiltrating prostate versus co-existing prostate cancer: a research study.
BACKGROUND
The aim of the following study is to evaluate the advancement of incidentally diagnosed prostate cancer in specimen after cystoprostatectomies caused by muscle-invasive bladder cancer. Secondly we assessed the survival in patients after radical cystoprostatectomy whose postoperative specimen was characterized by the presence of co-existing prostate cancer or prostate infiltration by urothelial bladder cancer.


METHODS
Between 1993 and 2009 a total of 320 patients with muscle-invasive bladder cancer underwent cystoprostatectomy. The first analyzed group consisted of 52 patients with bladder cancer infiltrating prostate, while the second group consisted of 21 patients with co-existing prostate cancer. In all patients cancer specific survival and progression were analyzed. Average follow up was 75.2 months (range: 0 - 181).


RESULTS
Cancer-specific survival was significantly shorter in group I (p = 0.03). Neoplastic progression in patients from group I was observed in 42.2% of patients, while in patients from group II in 23.6% of patients (p = 0.04). No statistical difference was observed in the percentage of positive lymph nodes between the groups (p = 0.22). The median Gleason score in patients with co-existing prostate cancer was equal to 5. The stage of prostate cancer pT₂/pT₃ was equal to 20 (96%)/1 (4%) patients. 12 (57%) prostate cancers were clinically insignificant. Biochemical recurrence occurred in 2 (9%) patients.


CONCLUSIONS
1. Incidentally diagnosed prostate cancer in specimen after cystoprostatectomies is frequently clinically insignificant and characterized by low progression.2. Patients with bladder cancer infiltrating prostate are characterized by higher percentage of progression and death in comparison with patients with co-existing prostate cancer.
Bryniarski
Piotr
P
Medical University of Silesia, Department of Urology, Zabrze, Poland. piotr.bryniarski@hotmail.com
Fryczkowski
Mieczysław
M
Pawlaczek
Paweł
P
Pliszek
Krzysztof
K
Prokopowicz
Grzegorz
G
Kaletka
Zbigniew
Z
Paradysz
Andrzej
A
D000368:Aged; D001706:Biopsy; D015653:Cystectomy; D005500:Follow-Up Studies; D006801:Humans; D053208:Kaplan-Meier Estimate; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009132:Muscles / Q000473:pathology; D009361:Neoplasm Invasiveness; D009367:Neoplasm Staging; D016609:Neoplasms, Second Primary / Q000401:mortality / Q000473:pathology / Q000601:surgery; D011379:Prognosis; D011467:Prostate / Q000473:pathology / Q000601:surgery; D017430:Prostate-Specific Antigen / Q000378:metabolism; D011468:Prostatectomy; D011471:Prostatic Neoplasms / Q000378:metabolism / Q000401:mortality / Q000473:pathology* / Q000556:secondary* / Q000601:surgery; D001743:Urinary Bladder / Q000473:pathology / Q000601:surgery; D001749:Urinary Bladder Neoplasms / Q000378:metabolism / Q000401:mortality / Q000473:pathology* / Q000601:surgery
D017430:Prostate-Specific Antigen