OBJECTIVES: Cancer control outcomes after partial cystectomy (PC) are not well studied. We compared the population-based rates of overall (OS) and cause-specific survival (CSS) in patients with urothelial carcinoma of the urinary bladder (UCB) treated with PC or radical cystectomy (RC). METHODS: Within the Surveillance Epidemiology and End Results-9 database, we identified 7243 patients treated with PC (n = 1573) or RC (n = 5670), who had pathologic T(1-4)N(1-2)M(0) UCB. Matched Kaplan-Meier survival analyses compared the effect of PC vs RC on OS and CSS. RESULTS: In the entire cohort, the OS and CSS estimates at 5 years were 57.2% and 76.4%, respectively, for PC patients and 50.2% and 65.8%, respectively, for RC patients (P < .001). In the cohort matched for age, race, pT stage, pN stage, tumor grade, and year of surgery, at 5 years the OS and CSS estimates were 56.0% and 73.5%, respectively, for PC patients, and 50.9% and 67.5%, respectively, for RC patients (OS, P = .03 and CSS, P < .001). When the number of removed lymph nodes was added to the matching criteria, the 5-year OS and CSS estimates were 57.2% and 70.3%, respectively, for PC patients, and 54.6% and 69.2%, respectively, for RC patients (HR 1.1, P = .3 and HR 1.1, P = .5). CONCLUSIONS: Partial cystectomy does not undermine cancer control in appropriately selected patients with UCB.
OBJECTIVES:Cancer control outcomes after partial cystectomy (PC) are not well studied. We compared the population-based rates of overall (OS) and cause-specific survival (CSS) in patients with urothelial carcinoma of the urinary bladder (UCB) treated with PC or radical cystectomy (RC). METHODS: Within the Surveillance Epidemiology and End Results-9 database, we identified 7243 patients treated with PC (n = 1573) or RC (n = 5670), who had pathologic T(1-4)N(1-2)M(0) UCB. Matched Kaplan-Meier survival analyses compared the effect of PC vs RC on OS and CSS. RESULTS: In the entire cohort, the OS and CSS estimates at 5 years were 57.2% and 76.4%, respectively, for PC patients and 50.2% and 65.8%, respectively, for RC patients (P < .001). In the cohort matched for age, race, pT stage, pN stage, tumor grade, and year of surgery, at 5 years the OS and CSS estimates were 56.0% and 73.5%, respectively, for PC patients, and 50.9% and 67.5%, respectively, for RC patients (OS, P = .03 and CSS, P < .001). When the number of removed lymph nodes was added to the matching criteria, the 5-year OS and CSS estimates were 57.2% and 70.3%, respectively, for PC patients, and 54.6% and 69.2%, respectively, for RC patients (HR 1.1, P = .3 and HR 1.1, P = .5). CONCLUSIONS: Partial cystectomy does not undermine cancer control in appropriately selected patients with UCB.
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