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- W2301965892 abstract "Objective To describe our “en bloc” technique for nonmuscle invasive bladder cancer (NMIBC), assess the quality of resection, and report the midterm oncological outcome. Materials and Methods This is an observational prospective longitudinal study, from June 2010 to February 2014, enrolling patients with clinically NMIBC, having tumors of ≤3 cm and ≤4 lesions who underwent electrical en bloc bladder resection. The primary study end point was recurrence-free survival. Secondary outcomes were feasibility, safety, the presence of detrusor muscle, and the recurrence rate at the first follow-up cystoscopy (3 months). Statistical analysis was complemented with multivariable analysis. Results Of 87 enrolled patients, 2 showed a nonurothelial carcinoma and 11 showed muscle invasive bladder carcinoma at the definitive pathology. The study cohort consisted of 74 transitional cell carcinoma NMIBC cases, mean age 71 years ± 8, presenting with a mean tumor diameter of 1.98 ± 0.59 cm and a median number of resected tumors per patients of 1 (range 1-4). The 2-year recurrence-free survival was 85.59%. All the en bloc resection of bladder tumor samples showed the presence of detrusor muscle and the recurrence rate at the first follow-up cystoscopy (3 months) was 5.4% (4/74). An extraperitoneal bladder perforation occurred in only one patient. At multivariable analysis, only gender and the presence of carcinoma in situ were independent predictors of recurrence. The midterm follow-up and the absence of a control group are the main limitations. Conclusion Our findings confirmed the feasibility and safety of en bloc resection of bladder tumor, with a recurrence-free survival of 85% after 2 years. To describe our “en bloc” technique for nonmuscle invasive bladder cancer (NMIBC), assess the quality of resection, and report the midterm oncological outcome. This is an observational prospective longitudinal study, from June 2010 to February 2014, enrolling patients with clinically NMIBC, having tumors of ≤3 cm and ≤4 lesions who underwent electrical en bloc bladder resection. The primary study end point was recurrence-free survival. Secondary outcomes were feasibility, safety, the presence of detrusor muscle, and the recurrence rate at the first follow-up cystoscopy (3 months). Statistical analysis was complemented with multivariable analysis. Of 87 enrolled patients, 2 showed a nonurothelial carcinoma and 11 showed muscle invasive bladder carcinoma at the definitive pathology. The study cohort consisted of 74 transitional cell carcinoma NMIBC cases, mean age 71 years ± 8, presenting with a mean tumor diameter of 1.98 ± 0.59 cm and a median number of resected tumors per patients of 1 (range 1-4). The 2-year recurrence-free survival was 85.59%. All the en bloc resection of bladder tumor samples showed the presence of detrusor muscle and the recurrence rate at the first follow-up cystoscopy (3 months) was 5.4% (4/74). An extraperitoneal bladder perforation occurred in only one patient. At multivariable analysis, only gender and the presence of carcinoma in situ were independent predictors of recurrence. The midterm follow-up and the absence of a control group are the main limitations. Our findings confirmed the feasibility and safety of en bloc resection of bladder tumor, with a recurrence-free survival of 85% after 2 years." @default.
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- W2301965892 date "2016-04-01" @default.
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- W2301965892 title "“En Bloc” Resection of Nonmuscle Invasive Bladder Cancer: A Prospective Single-center Study" @default.
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- W2301965892 doi "https://doi.org/10.1016/j.urology.2016.01.004" @default.
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