scholarly journals En Bloc Resection of Bladder Tumor—Is It the Way Forward?

2021 ◽  
Vol 8 ◽  
Author(s):  
Christian Daniel Fankhauser ◽  
Marian Severin Wettstein ◽  
Luca Afferi ◽  
Nico Christian Grossmann ◽  
Hugh Mostafid
Keyword(s):  
Bladder Cancer ◽  
Cancer Patients ◽  
Transurethral Resection ◽  
Bladder Tumor ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
80 And Over ◽  
Bladder Tumors ◽  
En Bloc ◽  
Translational Studies

Transurethral resection of bladder tumors (TURBT) represents the cornerstone in diagnosis and treatment of bladder cancer but recurrence is observed in up to 80% and over- or understaging with TURBT is common. A more recent development to overcome these limitations represents en-bloc resection of bladder tumors (ERBT) which offers several advantages over TURBT. In this report, we briefly review studies assessing outcomes of bladder cancer patients undergoing ERBT. Most randomized and non-randomized trial demonstrate improvement in clinical outcomes for ERBT over TURBT, however more pathological and translational studies are warranted.

scholarly journals Comparative analysis between En-bloc resection and transurethral resection of non-muscular invasive bladder tumors

2021 ◽  
Vol 64 (2) ◽  
pp. 65-69
Author(s):  
Ivan Vladanov ◽  
◽  
Alexei Plesacov ◽  
Vitalie Ghicavii ◽  
◽  
...  
Keyword(s):  
Transurethral Resection ◽  
Bladder Tumor ◽  
Correct Diagnosis ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Detrusor Muscle ◽  
Bladder Tumors ◽  
En Bloc ◽  
Resection Group ◽  
Muscle Invasive

Background: Transurethral resection of the bladder (TURB) tumor was first described by Stern and McCarthy in 1931, and is still considered the gold standard in diagnosis and treatment of non-muscle-invasive bladder cancer. The quality of TURB affects accuracy of histopathologic evaluation, and subsequently impacts the risk of recurrence and patient outcome. New methods that aim to improve the effectiveness of TURB are reviewed, and recent studies are discussed, including resection methods and image enhancement techniques. Material and methods: Between January 2016 and April 2019, within the Urology Clinic of Nicolae Testemitanu State University of Medicine and Pharmacy 108 patients were surgically treated with bladder tumor pathology. Patients were divided in two groups: En-bloc resection group which includes 51 patients and transurethral resection group with 57 patients, the obtained data were comparatively analyzed. Results: Tumor analysis showed that the majority of the patients’ tumors were localized on lateral urinary bladder walls, single bladder tumors were detected in 64 (59%) cases, tumor sizes up to 3 cm were detected in 74 (69%) patients included in the study. Detrusor muscles were detected in 49 (96%) cases of En-bloc group and 45 (79%) cases of TURB group. Most recurrences occurred in patients with high-grade histological result, recurrence rate in En-bloc group occurred in 18% and in TURB group in 37%. Conclusions: The En-bloc resection technique of non-muscle-invasive bladder tumor proved to be a safe and effective method compared to the conventional transurethral resection technique (TURB). This method provides more favorable results for obtaining better quality tumor samples (present of detrusor muscle) that allow to establish correct diagnosis and staging of the disease and reduces the number of recurrences.

scholarly journals TECHNICAL ASPECTS OF LASER EN BLOC RESECTION OF THE BLADDER TUMOR FOR NON-MUSCLE-INVASIVE BLADDER CANCER

2020 ◽  
pp. 53-58
Author(s):  
A. A. Kamalov ◽  
N. I. Sorokin ◽  
A. M. Dymov ◽  
D. A. Kislyakov ◽  
D. M. Kamalov ◽  
...  
Keyword(s):  
Bladder Cancer ◽  
Bladder Tumor ◽  
Bladder Wall ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Invasive Bladder Cancer ◽  
Muscle Invasive Bladder Cancer ◽  
En Bloc ◽  
Scientific Publications ◽  
Muscle Invasive

Abstract: In recent decades bladder cancer has become one of the most topical problems of modern healthcare due to its widespread distribution. This makes it necessary to investigate new effective methods of surgical treatment.Objective: Assessment of the effectiveness of en bloc resection of the bladder with tumor by analyzing scientific publications on this matter.Materials and methods: We have analyzed current articles related to this topic on the databases Pubmed and Google Scholar. The search was performed using the keywords «Bladder Tumor», «En bloc resection of the bladder wall», «non-muscle-invasive bladder cancer».Results: Most studies confirm the advantages of laser en bloc resection over other methods in terms of such parameters as the frequency of recurrence, macrohematuria, and the quality of morphological material.Conclusions: Laser en bloc resection of a bladder tumor without invasion of the muscle layer is a safe and effective operation that has a number of advantages over classical transurethral resection, namely: no obturator syndrome, high-quality material for pathomorphological research, low recurrence rate.

scholarly journals ANALYSIS OF ENDOUROLOGICAL TREATMENT TECHNIQUES OF URINARY BLADDER TUMORS

InterConf ◽  
2021 ◽  
pp. 290-298
Author(s):  
Ivan Vladanov ◽  
Alexei Plesacov ◽  
Vitalii Ghicavii
Keyword(s):  
Urinary Bladder ◽  
Transurethral Resection ◽  
Standard Technique ◽  
Tumor Stage ◽  
En Bloc Resection ◽  
Bloc Resection ◽  
Diagnosis And Treatment ◽  
Bladder Tumors ◽  
En Bloc ◽  
Treatment Techniques

Transurethral resection is very important not only for diagnosis and treatment of NMIBC, but also for its management. The application field of transurethral resection includes establishing histological diagnosis, determination of prognostic factors including the tumor stage, complete resection of all detected tumors of urinary bladder. Transurethral resection of bladder tumor (TURBT) is the standard technique for the diagnosis and treatment of non-muscle invasive bladder cancer. This method has also some limitations. One of the limitations is the insufficient assessment of the resection depth. It leads to the necessity of intravesical tumor fragmentation, but its disadvantage is that it limits the histopathological evaluation. In order to improve the treatment outcome for patients with non-muscular invasive bladder tumors, several new techniques such as En-bloc resection were proposed.

scholarly journals Comparison of the Safety and efficacy of enucleation of nonmuscle-invasive bladder cancer versus transurethral resection of nonmuscle-invasive bladder cancer: a systematic review and meta-analysis

2019 ◽  
Author(s):  
Ting Huang ◽  
Haixiao Wu ◽  
Qing Yang ◽  
Han Wu ◽  
Heng Zhang
Keyword(s):  
Systematic Review ◽  
Bladder Cancer ◽  
Transurethral Resection ◽  
Bladder Tumor ◽  
Meta Analysis ◽  
En Bloc Resection ◽  
Invasive Bladder Cancer ◽  
Controlled Trials ◽  
En Bloc ◽  
Nonmuscle Invasive Bladder Cancer

Abstract Purpose: Transurethral resection of bladder tumor (TURBT) via a wire loop has been regarded as a standard procedure dealing with nonmuscle-invasive bladder cancer (NMIBC) for a long time, and en-bloc resection of bladder tumors (ERBT) is a promising alternative to conventional transurethral resection of bladder tumor.
A few studys assessing the two techniques were reported. The objective of our study is to review the published literature and compare en-bloc resection for non–muscle-invasive bladder cancer (NMIBC) with conventional transurethral resection of bladder tumor (TURBT) in terms of safety and efficacy. Methods: We performed a systematic review and meta-analysis based on randomized controlled trials (RCTs) and non-randomized controlled trials(nRCTs) and some retrospective studys which were searched and sreened. A systematic search up to the 1st of March 2019 was conducted in the following databases: PubMed, Web of Science,the Cochrane Central Register of Controlled Trials and Embase. Data such as resection techniques, morbidity, specimens’ quality, and recurrence were collected from the manuscripts.Results: Sixteen studies were included in this systematic review finnally.No statistical difference is detectded between the two techniques regarding operative time,the 2-year recurrence-free survival and the occurrence of ureterostenosis.Analysis of some complications showed that ERBT was better than TURBT for NMIBC, including obturator nerve reflex, cystic stimulation rate, bladder perforation, operation time,duration of catheterization, postoperation duration of postoperation bladder irritation and length of hospital stay. In addition, detrusor miss rate is lower in ERBT group,the 1-year and 3-year recurrence-free survival improved in the ERBT group than in the TURBT group. Conclusions: This systematic review and meta-analysis suggests that ERBT technique is a feasible, safe procedures that may provide an alternative treatment for NMIBC.

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