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Factors influencing post-recurrence survival in bladder cancer following radical cystectomy
Anirban P Mitra1, David I Quinn, Tanya B Dorff
1Department of Pathology, University of Southern California Keck School of Medicine, Los Angeles, CA, USA.
Objective:
To identify prognostic indicators that influence post-recurrence survival following radical cystectomy for bladder cancer.
Patients And Methods:
In all, 2029 patients with bladder cancer underwent radical cystectomy with intent to cure between 1971 and 2005 at our institution. Of these, 447 patients (22%) developed non-urinary tract recurrence and were chosen for further analysis. Clinicopathological characteristics were analysed by univariate and multivariate analysis to identify factors prognostic for post-recurrence survival.
Results:
Median time to recurrence was 13.21 months and median post-recurrence overall survival was 5.59 months. Pathological stage (P < 0.001), intravesical therapy (P= 0.035), tumour upstaging (P < 0.001), lymph node density (P < 0.001) and recurrence site (P= 0.017) were associated with time to recurrence. Age (P= 0.042), type of urinary diversion (P < 0.014), surgical margin status (P= 0.049), pathological stage (P < 0.001), lymph node density (P < 0.001), time to recurrence (P < 0.001), recurrence site (P < 0.001) and post-recurrence chemotherapy administration (P < 0.001) were univariately prognostic for post-recurrence overall survival. Multivariate analysis confirmed the associations of pathological stage, type of urinary diversion, lymph node density, time to recurrence after cystectomy, site of recurrence and post-recurrence chemotherapy administration with outcome following bladder cancer recurrence. Median post-recurrence survival with either local or distant recurrence was 7.95 months and 5.95 months, respectively, whereas patients with both local and distant recurrences had median post-recurrence survival of 3.98 months.
Conclusions:
Bladder cancer recurrence forebodes poor prognosis, with 6 months' median survival following recurrence. Advanced pathological stage, positive surgical margins, high lymph node density and early recurrence portends poorer outcome. Although patients with local recurrence have a slightly better prognosis, those with disease recurrence at local and distant sites perform very poorly; nearly 97% of all patients with recurrence eventually succumb to the disease. Chemotherapy administration following recurrence may improve survival, although further studies are needed to exclude selection bias.
