OBJECTIVE: To describe our "en bloc" technique for nonmuscle invasive @entity150 (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 @entity1 with clinically NMIBC, having @entity5 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 @entity1 , 2 showed a @entity189 and 11 showed muscle invasive @entity150 at the definitive pathology. The study cohort consisted of 74 transitional cell @entity189 NMIBC cases, mean age 71   years        8, presenting with a mean @entity5 diameter of 1.98        0.59   cm and a median number of resected @entity5 per @entity1 of 1 (range 1-4). The 2-year recurrence-free survival was 85.59%. All the en bloc resection of @entity150 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 @entity1494 occurred in only one @entity1 . At multivariable analysis, only gender and the presence of @entity189 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 @entity150 , with a recurrence-free survival of 85% after 2 years.

"En Bloc" Resection of Nonmuscle Invasive XXXX : A Prospective Single-center Study.

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity1494 :: ('MESH:D001745', 'Disease') :: ['bladder perforation'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'tumors'] @entity189 :: ('MESH:D002277', 'Disease') :: ['carcinoma', 'nonurothelial carcinoma'] @entity150 :: ('MESH:D001749', 'Disease') :: ['bladder tumor', 'bladder carcinoma', 'bladder cancer']
@entity150 :: (MESH:D001749,Disease) :: ['Bladder Cancer']
