Transurethral en bloc resection of urinary bladder tumors vs conventional transurethral resection of bladder tumors. Early postoperative outcomes

Abstract

Introduction. Treatment of urinary bladder tumors (UBT) remains an important problem in oncourology. Currently, transurethral resection of urinary bladder (TUR-V) remains the gold standard in the endourologic treatment of UBT. In the last decade many alternative endourologic techniques have been proposed for the treatment of UBT. Aim of the study. Comparative assessment of the efficacy of transurethral En Bloc resection of urinary bladder tumors. Materials and methods. In the period between 08.2017 – 12.2017, 25 patients with average age of 57 years underwent endourological treatment of UBT at the Department of Urology and Surgical Nephrology, Nicolae Testemitanu State University of Medicine and Pharmacy. Patients were divided into two treatment groups: first group - transurethral En Bloc resection of UBT (8 patients), second group – TUR-V of UBT (17 patients). All patients were evaluated after 3 months by cystoscopy whit narrow band imaging (NBI). Results. Average duration of intervention: 39 min vs 33 min. The rate of transitional haematuria and postoperative infections was similar. During NBI cystoscopy tumor recurrence was determined in 3 cases in TUR-V group, and no recurrences in En Bloc resection group. In the En Bloc resection group additional tumors with different localization were found during NBI cystoscopy. Conclusions. Transurethral En Bloc resection of UBT is an effective method in the treatment of UBT. Results of treatment using En Bloc resection are better that conventional TUR-V of bladder tumor. Another advantage of transurethral En Bloc resection of UBT is a better staging of tumor process due to the resection of all urinary bladder wall layers which is very important to determine postoperative tactics.