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Song J, Wu Y, Chen Z, Zhai D, Zhang C, Chen S. Clinical significance of KRT7 in bladder cancer prognosis. Int J Biol Markers 2024; 39:158-167. [PMID: 38321777 DOI: 10.1177/03936155231224798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
BACKGROUND Typically, the overexpressed keratin 7 (KRT7) is considered a validated therapeutic target and prognosis marker in bladder cancer. However, the crucial roles of KRT7 in the clinical prognosis and immune microenvironment in bladder cancer remain unclear. METHODS Initially, the expression levels of KRT7 in public databases were analyzed that is,Tumor Immune Estimation Resource (TIMER) 2.0 and Gene Expression Profiling Interactive Analysis (GEPIA). Further, the clinical tissue samples from patients (n = 10 pairs) were collected to confirm the expression trends of KRT7 and detected by immunohistochemistry (IHC) analysis. Meanwhile, the relationship between KRT7 and the prognosis of bladder cancer patients was analyzed by Kaplan-Meier plotter estimation and Cox regression analysis. Finally, TIMER 2.0 and IHC staining analyses were performed to calculate the infiltration abundances of three kinds of immune cells in eligible bladder tumor samples. RESULTS The TIMER 2.0 and GEPIA datasets suggested the differences in the expression levels of KRT7 in tumors, in which KRT7 was significantly upregulated in bladder cancer. The KRT7 expression was closely associated with patients' gender, tumor histologic subtypes, T status, and American Joint Committee on Cancer stages. Notably, the increased KRT7 indicated poor overall survival and disease-free survival rates. Moreover, KRT7 expression could be responsible for immune infiltration in the cancer microenvironment of the bladder. Finally, the high expression level of KRT7 increased the presence of regulatory T cells (Tregs) but reduced the infiltration of CD8+ T and natural killer cells. CONCLUSION KRT7 as a biomarker potentiated the prediction of bladder cancer prognosis and the immune microenvironment.
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Affiliation(s)
- Jun Song
- Department of Urology, The Third Affiliated Hospital of Zhejiang Chinese Medicine University, Hangzhou, Zhejiang, PR China
| | - Ye Wu
- Department of Urology, The Third Affiliated Hospital of Zhejiang Chinese Medicine University, Hangzhou, Zhejiang, PR China
| | - Zhongming Chen
- Department of Urology, The Third Affiliated Hospital of Zhejiang Chinese Medicine University, Hangzhou, Zhejiang, PR China
| | - Dong Zhai
- Department of Urology, The Third Affiliated Hospital of Zhejiang Chinese Medicine University, Hangzhou, Zhejiang, PR China
| | - Chunpei Zhang
- Department of Surgery, Sanya People's Hospital, Sanya, Hainan, PR China
| | - Shizhan Chen
- Department of Surgery, Sanya People's Hospital, Sanya, Hainan, PR China
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D'Andrea D, Soria F, Hurle R, Enikeev D, Kotov S, Régnier S, Xylinas E, Lusuardi L, Heidenreich A, Cai C, Frego N, Taraktin M, Ryabov M, Gontero P, Compérat E, Shariat SF. En Bloc Versus Conventional Resection of Primary Bladder Tumor (eBLOC): A Prospective, Multicenter, Open-label, Phase 3 Randomized Controlled Trial. Eur Urol Oncol 2023; 6:508-515. [PMID: 37543464 DOI: 10.1016/j.euo.2023.07.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/24/2023] [Accepted: 07/19/2023] [Indexed: 08/07/2023]
Abstract
BACKGROUND En bloc transurethral resection of the bladder (eTURB) might improve the surgical management of non-muscle-invasive bladder cancer (NMIBC) in comparison to conventional TURB (cTURB). OBJECTIVE To evaluate whether eTURB is superior to cTURB in resection of NMIBC and specimen retrieval. DESIGN, SETTING, AND PARTICIPANTS This was a randomized, multicenter trial in patients with up to three cTa-T1 NMIBC tumors of 1-3 cm in size, who were enrolled from January 2019 to January 2022. INTERVENTION Participants were randomized 1:1 to undergo eTURB (n = 192) or cTURB (n = 192). OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS The primary outcome was the prevalence of detrusor muscle (DM) in the specimen retrieved. Secondary endpoints included bladder perforation, persistent disease at second-look TURB, positive lateral resection margin, positive deep resection margin, operation time, perforation rate, obturator reflex, conversion from eTURB to cTURB, recurrence-free survival, and disease recurrence at 3 mo. RESULTS AND LIMITATIONS A total of 384 patients were randomized to undergo eTURB or cTURB. A total of 452 tumors were resected and analyzed for the primary outcome. eTURB was superior to cTURB in retrieval of DM (80.7% vs 71.1%; mixed-model p = 0.01). Bladder perforation (5.6% vs 12%; difference -6.4%; 95% confidence interval [CI] -12.2% to -0.6%) and obturator reflex (8.4% vs 16%; difference -7.6%; 95% CI -14.3% to -0.9%) were less frequent in the eTURB arm than in the cTURB arm. Operation time did not differ between the two techniques (26 min, interquartile range [IQR] 20-38 for eTURB vs 25 min, IQR 17-35 for cTURB; difference 1 min, 95% CI -25.9 to 4.99). Second-look TURB was performed in 24 patients in the eTURB arm and 34 in the cTURB arm, with no difference in the rate of residual papillary disease (pTa/pT1: 56% vs 55.9%; difference 0.1%, 95% CI -25.5% to 25.7%). At median follow-up of 13 mo (IQR 7-20), 18.4% of the patients in the eTURB arm and 16.7% in the cTURB arm had experienced bladder cancer recurrence (Cox hazard ratio 0.87, 95% CI 0.49-1.52; p = 0.6). CONCLUSIONS In patients with clinical NMIBC with up to three tumors of 1-3 cm in size, tumor removal via eTURB resulted in a higher rate of DM in the pathologic specimen in comparison to cTURB. Moreover, eTURB was associated with lower frequency of obturator reflex and bladder perforation than cTURB was. While improving on the quality indicators for NMIBC, the long-term differential oncologic benefits of eTURB remain uncertain. PATIENT SUMMARY We compared two techniques for removal of bladder tumors and found that tumor removal in a single piece, called en bloc resection, provides a better-quality specimen for pathology analysis and fewer complications in comparison to the conventional method. This trial is registered at ClinicalTrials.gov as NCT03718754.
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Affiliation(s)
- David D'Andrea
- Department of Urology, Medical University of Vienna, Vienna, Austria.
| | - Francesco Soria
- Division of Urology, Department of Surgical Sciences, AOU Città della Salute e della Scienza, Torino School of Medicine, Turin, Italy
| | - Rodolfo Hurle
- Department of Urology, IRCCS Humanitas Clinical and Research Hospital, Rozzano, Italy
| | - Dmitry Enikeev
- Department of Urology, Medical University of Vienna, Vienna, Austria; Institute for Urology and Reproductive Health, Sechenov University, Moscow, Russia
| | - Sergey Kotov
- Department of Urology and Andrology, Pirogov Russian National Research Medical University, Moscow, Russia
| | - Sophie Régnier
- Department of Urology, Bichat-Claude Bernard Hospital, AP-HP, Université Paris Cité, Paris, France
| | - Evanguelos Xylinas
- Department of Urology, Bichat-Claude Bernard Hospital, AP-HP, Université Paris Cité, Paris, France
| | - Lukas Lusuardi
- Department of Urology and Andrology, Paracelsius Medical University, Salzburg, Austria
| | - Axel Heidenreich
- Department of Urology, Uro-oncology, Robot-Assisted and Specialized Surgery, University of Cologne, Cologne, Germany
| | - Chao Cai
- Department of Urology, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Nicola Frego
- Department of Urology, IRCCS Humanitas Clinical and Research Hospital, Rozzano, Italy
| | - Mark Taraktin
- Institute for Urology and Reproductive Health, Sechenov University, Moscow, Russia
| | | | - Paolo Gontero
- Division of Urology, Department of Surgical Sciences, AOU Città della Salute e della Scienza, Torino School of Medicine, Turin, Italy
| | - Eva Compérat
- Department of Pathology, Medical University of Vienna, Vienna, Austria
| | - Shahrokh F Shariat
- Department of Urology, Medical University of Vienna, Vienna, Austria; Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX, USA; Department of Urology, Weill Cornell Medical College, New York, NY, USA; Department of Urology, Second Faculty of Medicine, Charles University, Prague, Czechia
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Enikeev D, Morozov A, Shpikina A, Fajkovic H, Baniel J, Herrmann TRW. A 10-year renaissance of en bloc resection of bladder tumors (ERBT): Are we approaching the peak or is it back to the trough? World J Urol 2023; 41:2607-2615. [PMID: 37244879 DOI: 10.1007/s00345-023-04439-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 05/02/2023] [Indexed: 05/29/2023] Open
Abstract
BACKGROUND The number of studies suggesting that en bloc resection of bladder tumor (ERBT) is superior to transurethral resection of bladder tumor (TURBT) for non-muscle-invasive bladder cancer (NMIBC) management is growing. The aim of this review is to discuss the features of these procedures and to determine the prospects of en bloc in NMIBC management. MATERIALS AND METHODS We conducted a literature search using two databases (Medline and Scopus) and included any research which reported ERBT outcomes. RESULTS The lasers with minimal tissue penetration depth are becoming the main tool for ERBT. Unfortunately, most of the systematic reviews continue to be characterized by high heterogeneity. However, recent studies indicate that ERBT may have the edge when it comes to the detrusor muscle rate and the quality of the histological specimen. ERBT may favor in terms of in-field relapse, but its rate in the studies varies greatly. As for out-field relapse-free survival, the data are still lacking. The strongest evidence supports that ERBT is superior to TURBT in complications rate (bladder perforation). ERBT is feasible irrespective to tumor size and location. CONCLUSIONS ERBT has gained in momentum with the increasingly widespread use of this kind of laser surgery. The introduction of novel sources (TFL and Thulium:YAG pulsed laser) will definitely affect how the field develops and will result in further improvements in safety and precision. The latest trials make us more certain in our belief that ERBT will be beneficial in terms of histological specimen quality, relapse rate and complications rate.
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Affiliation(s)
- Dmitry Enikeev
- Department of Urology, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria.
- Institute for Urology and Reproductive Health, Sechenov University, Moscow, Russia.
- Karl Landsteiner Institute of Urology and Andrology, Vienna, Austria.
| | - Andrey Morozov
- Institute for Urology and Reproductive Health, Sechenov University, Moscow, Russia
| | - Anastasia Shpikina
- Institute for Urology and Reproductive Health, Sechenov University, Moscow, Russia
| | - Harun Fajkovic
- Department of Urology, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria
- Karl Landsteiner Institute of Urology and Andrology, Vienna, Austria
| | - Jack Baniel
- Division of Urology, Rabin Medical Center, Petach Tikva, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Thomas R W Herrmann
- Department of Urology, Spital Thurgau AG (STGAG), Frauenfeld, Switzerland
- Department of Urology, Stellenbosch University, Western Cape, South Africa
- Hannover Medical School, MHH Carl Neuberg Str. 1, 30625, Hannover, Germany
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Matsukawa A, Kimura S, Koike Y, Ajisaka S, Aikawa K, Obayashi K, Yanagisawa T, Kimura T, Miki J. Feasibility of Novel Technique of Flexible Cystoscopic En Bloc Snare Resection of Bladder Tumor: f-ESRBT. J Endourol 2023; 37:713-717. [PMID: 36987377 DOI: 10.1089/end.2022.0686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023] Open
Abstract
Background: En bloc resection of bladder tumors (ERBT) has been used as a treatment option to improve pathologic diagnostic accuracy in non-muscle invasive bladder cancer. We report on the feasibility of a novel ERBT technique using an electrosurgical snare with flexible cystoscope: flexible cystoscopic En bloc Snare Resection of Bladder Tumor (f-ESRBT). Methods: We used the electrosurgical snare to resect a superficial bladder tumor after injection of 50% glucose in the submucosa at the tumor base. We collected each resected tumor with a basket catheter and coagulated the resected area with a coagulation electrode. A flexible cystoscope was used for all procedures. Results/Discussion: We performed 10 operations. Mean tumor size was 10.2 ± 7.3 mm and mean surgery time was 13.8 ± 6.8 minutes. All procedures were performed without complications. Results showed f-ESRBT to be simple and minimally invasive and to enable accurate pathologic diagnoses. Conclusion: f-ESRBT is a feasible treatment option for small and non-muscle invasive bladder cancer.
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Affiliation(s)
- Akihiro Matsukawa
- Department of Urology, The Jikei University Kashiwa Hospital, Kashiwa-shi, Chiba, Japan
| | - Shoji Kimura
- Department of Urology, The Jikei University Kashiwa Hospital, Kashiwa-shi, Chiba, Japan
| | - Yuhei Koike
- Department of Urology, The Jikei University Kashiwa Hospital, Kashiwa-shi, Chiba, Japan
| | - Shino Ajisaka
- Department of Urology, The Jikei University Kashiwa Hospital, Kashiwa-shi, Chiba, Japan
| | - Koichi Aikawa
- Department of Urology, The Jikei University Kashiwa Hospital, Kashiwa-shi, Chiba, Japan
| | - Koki Obayashi
- Department of Urology, The Jikei University Kashiwa Hospital, Kashiwa-shi, Chiba, Japan
| | - Takafumi Yanagisawa
- Department of Urology, The Jikei University Kashiwa Hospital, Kashiwa-shi, Chiba, Japan
| | - Takahiro Kimura
- Department of Urology, The Jikei University School of Medicine, Minato-ku, Tokyo, Japan
| | - Jun Miki
- Department of Urology, The Jikei University Kashiwa Hospital, Kashiwa-shi, Chiba, Japan
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Yu EYW, Liu YX, Chen YT, Tang QY, Mehrkanoon S, Wang SZ, Li WC, Zeegers MP, Wesselius A. The effects of the interaction of genetic predisposition with lifestyle factors on bladder cancer risk. BJU Int 2023; 131:443-451. [PMID: 36053730 DOI: 10.1111/bju.15880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To investigate the association of polygenic risk score (PRS) and bladder cancer (BC) risk and whether this PRS can be offset by a healthy lifestyle. METHODS Individuals with BC (n = 563) and non-BC controls (n = 483 957) were identified in the UK Biobank, and adjusted Cox regression models were used. A PRS was constructed based on 34 genetic variants associated with BC development, while a healthy lifestyle score (HLS) was constructed based on three lifestyle factors (i.e., smoking, physical activity, and diet). RESULTS Overall, a negative interaction was observed between the PRS and the HLS (P = 0.02). A 7% higher and 28% lower BC risk per 1-standard deviation (SD) increment in PRS and HLS were observed, respectively. A simultaneous increment of 1 SD in both HLS and PRS was associated with a 6% lower BC risk. In addition, individuals with a high genetic risk and an unfavourable lifestyle showed an increased BC risk compared to individuals with low genetic risk and a favourable lifestyle (hazard ratio 1.55, 95% confidence interval 1.16-1.91; P for trend <0.001). Furthermore, population-attributable fraction (PAF) analysis showed that 12%-15% of the BC cases might have been prevented if individuals had adhered to a healthy lifestyle. CONCLUSION This large-scale cohort study shows that a genetic predisposition combined with unhealthy behaviours have a joint negative effect on the risk of developing BC. Behavioural lifestyle changes should be encouraged for people through comprehensive, multifactorial approaches, although high-risk individuals may be selected based on genetic risk.
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Affiliation(s)
- Evan Yi-Wen Yu
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Epidemiology & Biostatistics, School of Public Health, Southeast University, Nanjing, China
- Department of Epidemiology, CAPHRI Care and Public Health Research Institute, Maastricht University, Maastricht, The Netherlands
| | - Yu-Xiang Liu
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Epidemiology & Biostatistics, School of Public Health, Southeast University, Nanjing, China
| | - Ya-Ting Chen
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Epidemiology & Biostatistics, School of Public Health, Southeast University, Nanjing, China
| | - Qiu-Yi Tang
- Medical School of Southeast University, Nanjing, China
| | - Siamak Mehrkanoon
- Department of Data Science and Knowledge Engineering, Maastricht University, Maastricht, The Netherlands
| | - Shi-Zhi Wang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, China
| | - Wen-Chao Li
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Maurice P Zeegers
- Department of Epidemiology, CAPHRI Care and Public Health Research Institute, Maastricht University, Maastricht, The Netherlands
| | - Anke Wesselius
- Department of Epidemiology, CAPHRI Care and Public Health Research Institute, Maastricht University, Maastricht, The Netherlands
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Tonin E, Shariat SF, Schiavina R, Brunocilla E, D'Andrea D. En-bloc resection of non-muscle invasive bladder cancer: does it really make a difference? Curr Opin Urol 2023; 33:147-151. [PMID: 36710595 DOI: 10.1097/mou.0000000000001073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
PURPOSE OF REVIEW Transurethral resection of bladder tumour (TURBT) followed by pathology investigation of the obtained specimens is the initial step in the management of urinary bladder cancer (UBC). By following the basic principles of oncological surgery, en-bloc resection of bladder tumour (ERBT) aims to overcome the limitations associated with conventional transurethral resection, and to improve the quality of pathological specimens for a better decision making. The current bulk of evidence provides controversial results regarding the superiority of one technique over the other. The aim of this article is to summarize the recent data and provide evidence on this unanswered question. RECENT FINDINGS Despite heterogeneous and controversial data, ERBT seems to have a better safety profile and deliver higher quality pathologic specimens. However, the recent evidence failed to support the hypothesized oncological potential benefits of ERBT in the initial surgical treatment of patients with UBC. SUMMARY ERBT has gained increasing interest globally in the past decade. It continues to represent a promising strategy with a variety of features intended to solve the inherent limitations of TURBT. However, the current quality of evidence does not allow solid conclusions to be drawn about its presumed superiority compared with the conventional technique.
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Affiliation(s)
- Elena Tonin
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
- Division of Urology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Shahrokh F Shariat
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
- Department of Urology, Weill Cornell Medical College, New York, NY
- Department of Urology, University of Texas Southwestern, Dallas, TX, USA
- Department of Urology, Second Faculty of Medicine, Charles University, Prague, Czech Republic
- Hourani Center for Applied Scientific Research, Al-Ahliyya Amman University, Amman, Jordan
| | - Riccardo Schiavina
- Division of Urology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Eugenio Brunocilla
- Division of Urology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - David D'Andrea
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
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Yang Y, Wang C, Li Z, Lu Q, Li Y. Precise diagnosis and treatment of non-muscle invasive bladder cancer - A clinical perspective. Front Oncol 2023; 13:1042552. [PMID: 36798814 PMCID: PMC9927396 DOI: 10.3389/fonc.2023.1042552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 01/20/2023] [Indexed: 02/01/2023] Open
Abstract
According to the guidelines, transurethral resection of bladder tumor (TURBT) followed by intravesical therapy remains the standard strategy for the management of non-muscle invasive bladder cancer (NMIBC). However, even if patients receive standard strategy, the risk of postoperative recurrence and progression is high. From the clinical perspective, the standard strategy needs to be optimized and improved. Compared to conventional TURBT, the technique of en bloc resection of bladder tumor (ERBT) removes the tumor tissue in one piece, thus following the principles of cancer surgery. Meanwhile, the integrity and spatial orientation of tumor tissue is protected during the operation, which is helpful for pathologists to make accurate histopathological analysis. Then, urologists can make a postoperative individualized treatment plan based on the patient's clinical characteristics and histopathological results. To date, there is no strong evidence that NMIBC patients treated with ERBT achieve better oncological prognosis, which indicates that ERBT alone does not yet improve patient outcomes. With the development of enhanced imaging technology and proteogenomics technology, en bloc resection combined with these technologies will make it possible to achieve precise diagnosis and treatment of bladder cancer. In this review, the authors analyze the current existing shortcomings of en bloc resection and points out its future direction, in order to promote continuous optimization of the management strategy of bladder cancer.
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Affiliation(s)
| | | | | | - Qiang Lu
- *Correspondence: Qiang Lu, ; Yuanwei Li,
| | - Yuanwei Li
- *Correspondence: Qiang Lu, ; Yuanwei Li,
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Zhang W, Zhou B, Deng J, Han G, Ni W, Nie Q. Retrospective analysis of 1470-/980-nm dual-wavelength laser en bloc resection versus transurethral resection of bladder tumor for primary non-muscle-invasive bladder cancer. Lasers Med Sci 2023; 38:44. [PMID: 36656398 DOI: 10.1007/s10103-023-03708-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 01/11/2023] [Indexed: 01/20/2023]
Abstract
To compare the safety and efficacy of en bloc resection of non-muscle-invasive bladder cancer (NMIBC) using a 1470-/980-nm dual-wavelength laser (DwLRBT) compared to the gold standard, transurethral resection (TURBT). The study group included 251 patients with a confirmed diagnosis of NMIBC, 97 in the DwLRBT group and 154 in the TURBT group. Clinical characteristics, complications, and recurrence-free survival were compared between the two groups. There were no differences between the two groups with regard to age, sex, mean tumor size, mean tumor number, tumor location, risk, fever, and reoperation. Compared to TURBT, DwLRBT was associated with a shorter hospitalization time (mean±standard deviation: 5.81±1.48 days vs. 4.96±1.32, respectively, p=0.001), shorter catheterization time (4.98±1.47 vs. 4.20±1.48 days, respectively; p=0.035), and smaller volume of intraoperative bleeding (8.43±6.21 ml vs. 6.15±5.08, respectively; p=0.003). Recurrence-free survival (RFS) was better for DwLRBT than TURBT in the overall cohort (hazard ratio [HR], 0.4323; 95% confidence interval [CI], 0.2852-0.6554; p=0.0004) and for the following subgroups and tumor types: intermediate-risk (HR, 0.2654; 95%CI, 0.1020-0.6904; p=0.0245) and high-risk (HR, 0.4461; 95% CI, 0.2778-0.7162; p=0.0027) groups; and for pedunculate bladder tumors (HR, 0.4158; 95%CI, 0.2401-0.7202; p=0.0063), single bladder tumors (HR, 0.4136; 95%CI, 0.2376-0.7293; p=0.0072), and multiple bladder tumors (HR, 0.2727; 95%CI, 0.1408-0.5282; p=0.0014). DwLRBT is associated with better operative and postoperative outcomes, including, importantly, a longer RFS, compared to TURBT.
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Affiliation(s)
- Wenqiang Zhang
- Department of Urology, Zhuhai People's Hospital (Zhuhai Hospital affiliated with Jinan University), Zhuhai, 519000, China
| | - Bin Zhou
- Department of Pathology, Zhuhai People's Hospital (Zhuhai Hospital affiliated with Jinan University), Zhuhai, 519000, China
| | - Jian Deng
- Department of Urology, Zhuhai People's Hospital (Zhuhai Hospital affiliated with Jinan University), Zhuhai, 519000, China
| | - Gengyu Han
- Department of Urology, Zhuhai People's Hospital (Zhuhai Hospital affiliated with Jinan University), Zhuhai, 519000, China
| | - Wenjun Ni
- Department of Urology, Zhuhai People's Hospital (Zhuhai Hospital affiliated with Jinan University), Zhuhai, 519000, China.
| | - Qiwei Nie
- Department of Urology, Zhuhai People's Hospital (Zhuhai Hospital affiliated with Jinan University), Zhuhai, 519000, China.
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Chang CW, Tang TY, Geng JH, Jhan JH, Wang HS, Shen JT, Lee YC. The Safety and Efficacy of Vela Laser En-Bloc Endoscopic Resection versus Conventional Transurethral Resection of Bladder Tumor-A Single Center Experience. J Clin Med 2022; 11:jcm11175233. [PMID: 36079164 PMCID: PMC9457292 DOI: 10.3390/jcm11175233] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 08/24/2022] [Accepted: 09/02/2022] [Indexed: 11/16/2022] Open
Abstract
(1) Background: The current gold standard treatment of bladder cancer is conventional transurethral resection of the bladder tumor (CTURBT) using monopolar or bipolar resectoscopes. Laser en-bloc resection of the bladder tumor (LERBT) could achieve a higher quality of the specimen, reduce perioperative complications, and decrease the recurrence rate. Here, we compare the efficacy and safety of en-bloc Vela laser resection versus the conventional monopolar/bipolar resection; (2) Methods: A total of 100 clinically cT1-2 patients with bladder cancer were retrospectively reviewed in this study. Among these patients, 50 patients received LERBT, and 50 patients received CTURBT. The baseline characteristics, operation variables, and clinical outcomes were collected. The primary performance was the presence of muscle layer in the specimen. Perioperative complications and recurrence-free survival (RFS) were also compared. Independent t-test, Chi-square test, Kaplan–Meier curves, and the Cox-regression model were used in the analysis; (3) Results: The median age of the patients in the laser and resectoscope groups was 69.2 and 68.0 years old, respectively. The statistical difference in the presence of the detrusor muscle was 92.0% in the laser group and 70.0% in the CTURBT group (p = 0.005). A lower incidence of bladder perforation (p = 0.041) and major surgical complications (p = 0.046) in the LEBRT group was observed. We found no differences in operation duration, catheterization time, and hospitalization time after adjustment. Additionally, there was no statistical difference in RFS after a median follow-up time of 25 months; (4) Conclusions: Endoscopic laser en-bloc resection of bladder tumor with Vela laser is an effective method with higher muscle inclusion rate and fewer complications.
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Affiliation(s)
- Che-Wei Chang
- Department of Urology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung 81267, Taiwan
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Tsz-Yi Tang
- Department of Urology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung 81267, Taiwan
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Jiun-Hung Geng
- Department of Urology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung 81267, Taiwan
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Jhen-Hao Jhan
- Department of Urology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung 81267, Taiwan
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Hsun-Shuan Wang
- Department of Urology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung 81267, Taiwan
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Jung-Tsung Shen
- Department of Urology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung 81267, Taiwan
| | - Yung-Chin Lee
- Department of Urology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung 81267, Taiwan
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Urology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Correspondence:
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10
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Culpan M, Kazan O, Acar HC, Iplikci A, Atis G, Yildirim A. The probability of residual tumor detection in the second transurethral resection of pT1 urothelial bladder cancer according to the risk factors. Actas Urol Esp 2022; 46:423-430. [PMID: 35725972 DOI: 10.1016/j.acuroe.2022.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/17/2021] [Accepted: 07/23/2021] [Indexed: 12/24/2022]
Abstract
OBJECTIVE To analyze the predictive factors for residual tumors in the second resection after the initial transurethral resection of bladder tumor (TUR-BT) in patients with pT1 tumors and to develop a simple method to predict the probability of residual tumor detection. MATERIAL AND METHODS Patients with pT1 bladder cancer who underwent a second resection within two to six weeks after the initial TUR-BT were included in our retrospective study. The patients' demographics and the tumor characteristics of the initial and second resections were recorded. RESULTS A total of 144 patients were included in our analysis with a 53-month follow-up. In the univariate logistic regression analysis, tumor grade, concomitant carcinoma in situ (CIS), macroscopic appearance of the tumor (solid vs papillary), and presence of a variant histology, were significant risk factors for residual tumor. In the multivariate analysis, tumor grade was the only independent predictor of residual tumor at second TUR (OR: 5.62, 95% CI: 1.228-25.708, p = 0.026). According to our findings, the patients with the highest risk have a 90.9% residual tumor detection probability at the second resection, and the patients with the lowest risk have 25.4%. CONCLUSIONS Tumor grade, macroscopic appearance of the tumor (solid vs papillary), and concomitant CIS, were important predictors of residual tumors at second resection of primary pT1 NMIBC patients. We were able to calculate the probability of residual tumor which helped us determine risk adapted strategies according to these probabilities.
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Affiliation(s)
- M Culpan
- Department of Urology, Istanbul Medeniyet University, Istanbul, Turkey.
| | - O Kazan
- Department of Urology, Faculty of Medicine, Istanbul Medeniyet University, Istanbul, Turkey
| | - H Cansu Acar
- Department of Public Health, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - A Iplikci
- Department of Urology, Faculty of Medicine, Istanbul Medeniyet University, Istanbul, Turkey
| | - G Atis
- Department of Urology, Faculty of Medicine, Istanbul Medeniyet University, Istanbul, Turkey
| | - A Yildirim
- Department of Urology, Faculty of Medicine, Istanbul Medeniyet University, Istanbul, Turkey
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11
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Mori K, Yanagisawa T, Katayama S, Laukhtina E, Pradere B, Mostafaei H, Quhal F, Rajwa P, Moschini M, Soria F, D'andrea D, Abufaraj M, Albisinni S, Krajewski W, Fukuokaya W, Miki J, Kimura T, Egawa S, Teoh JY, Shariat SF. Impact of sex on outcomes after surgery for non-muscle-invasive and muscle-invasive bladder urothelial carcinoma: a systematic review and meta-analysis. World J Urol 2022; 41:909-919. [PMID: 35963957 PMCID: PMC10159976 DOI: 10.1007/s00345-022-04116-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 07/20/2022] [Indexed: 11/29/2022] Open
Abstract
PURPOSE To assess the prognostic value of sex for non-muscle-invasive/muscle-invasive bladder urothelial carcinoma (NMIBC/MIBC) treated with radical surgery. METHODS The PubMed, Web of Science, and Scopus databases were searched in November 2021 according to the Preferred Reporting Items for Systematic Review and Meta-analysis statement. Studies were deemed eligible if they involved the comparison of the overall, cancer-specific, progression, and recurrence-free survival of patients with NMIBC/MIBC. Formal sex-stratified meta-analyses of these outcomes were performed. RESULTS Thirty-one studies, which included 32,525 patients with NMIBC, and 63 studies, which included 85,132 patients with MIBC, were eligible for review and meta-analysis. Female sex was associated with worse cancer-specific survival (pooled hazard ratio [HR], 1.21; 95% confidence interval [CI], 1.11-1.31) and overall survival (pooled HR, 1.02; 95% CI, 1.00-1.05) in patients with MIBC. In contrast, however, sex was not associated with cancer-specific survival (pooled HR, 1.01; 95% CI, 0.70-1.46), progression-free survival (pooled HR, 1.04; 95% CI, 0.88-1.24), and recurrence-free survival (pooled HR, 1.06; 95% CI, 0.98-1.16) in patients with NMIBC. CONCLUSIONS Sex is associated with an increased risk of worse survival outcomes in patients with MIBC but not in those with NMIBC. Given the genetic and social differences between sexes, sex may represent a key factor in the clinical decision-making process.
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Affiliation(s)
- Keiichiro Mori
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.,Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| | - Takafumi Yanagisawa
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.,Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| | - Satoshi Katayama
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.,Department of Urology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Ekaterina Laukhtina
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.,Institute for Urology and Reproductive Health, Sechenov University, Moscow, Russia
| | - Benjamin Pradere
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Hadi Mostafaei
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.,Research Center for Evidence Based Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fahad Quhal
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.,Department of Urology, King Fahad Specialist Hospital, Dammam, Saudi Arabia
| | - Pawel Rajwa
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.,Department of Urology, Medical University of Silesia, Zabrze, Poland
| | - Marco Moschini
- Department of Urology, San Raffaele Hospital, Milan, Italy
| | - Francesco Soria
- Division of Urology, Department of Surgical Sciences, University of Studies of Torino, Turin, Italy
| | - David D'andrea
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Mohammad Abufaraj
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.,Division of Urology, Department of Special Surgery, The University of Jordan, Amman, Jordan
| | - Simone Albisinni
- Department of Urology, University Clinics of Brussels, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium
| | - Wojciech Krajewski
- Department of Department of Minimally Invasive and Robotic Urology, Wrocław Medical University, Wroclaw, Poland
| | - Wataru Fukuokaya
- Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| | - Jun Miki
- Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| | - Takahiro Kimura
- Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| | - Shin Egawa
- Department of Urology, The Jikei University School of Medicine, Tokyo, Japan
| | - Jeremy Yc Teoh
- Department of Surgery, S.H. Ho Urology Centre, The Chinese University of Hong Kong, Hong Kong, China
| | - Shahrokh F Shariat
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria. .,Institute for Urology and Reproductive Health, Sechenov University, Moscow, Russia. .,Division of Urology, Department of Special Surgery, The University of Jordan, Amman, Jordan. .,Department of Urology, Weill Cornell Medical College, New York, NY, USA. .,Department of Urology, University of Texas Southwestern, Dallas, TX, USA. .,Karl Landsteiner Institute of Urology and Andrology, Vienna, Austria. .,Department of Urology, Second Faculty of Medicine, Charles University, Prague, Czech Republic.
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12
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Systematic review and meta-analysis of randomized controlled trials of perioperative outcomes and prognosis of transurethral en-bloc resection vs. conventional transurethral resection for non-muscle-invasive bladder cancer. Int J Surg 2022; 104:106777. [PMID: 35850465 DOI: 10.1016/j.ijsu.2022.106777] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 06/28/2022] [Accepted: 07/07/2022] [Indexed: 01/08/2023]
Abstract
OBJECTIVES This article aimed to perform a systematic review and meta-analysis of randomized controlled trials (RCTs) of perioperative outcomes and prognosis of transurethral en-bloc resection versus conventional transurethral resection for non-muscle-invasive bladder cancer (NMIBC). METHODS We searched MEDLINE, Web of Science, and the Cochrane Controlled Register of Trials (CENTRAL) to find eligible RCTs. The studies were classified by version 2 of the Cochrane risk-of-bias tool for randomized trials. Review Manager 5.4.0 was used to evaluate the data. The certainty of the evidence was assessed using the Guideline Development Tool by GRADEpro GDT. RESULTS Seven RCTs with 1142 patients was included in the present study. The results indicated that bladder perforation (OR = 0.17; 95% CI 0.05 to 0.67; P = 0.01), obturator nerve reflex (OR = 0.03; 95% CI 0.01 to 0.13; P < 0.00001), residual tumor (OR = 0.24; 95% CI 0.08 to 0.77; P = 0.02) and repeat transurethral resection of bladder tumor (re-TURBT) (OR = 0.54; 95% CI 0.34 to 0.85; P = 0.008) were significantly reduced in the en-bloc resection group than the conventional resection group. However, there were no significant differences in hemoglobin deficit (p = 0.31), urethral stricture (p = 0.47), and detrusor muscle presence (P = 0.16) between both groups. Besides, resection time (p = 0.25), operative time (p = 0.20), catheter dwell time (p = 0.24), and length of hospital stay (p = 0.16) were similar in the two groups. Meanwhile, en-bloc resection yielded no advantage for the 3-month (P = 0.11), 6-month (P = 0.05), 1-year (P = 0.61), 2-year (P = 0.53), and 3-year (P = 0.26) tumor recurrence rates. CONCLUSIONS Our meta-analysis shows that transurethral en-bloc resection is associated with comparable outcomes to conventional transurethral resection for recurrence-free survival in NMIBC patients. En-bloc resection is more feasible and safer than conventional resection for NMIBC, with fewer intraoperative complications, less residual tumor, and less re-TURBT.
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13
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Ho CH, Tseng WH, Huang SK, Liu CL, Wu YC, Chiu AW, Ong KH. Association between Smoking and Overall and Specific Mortality in Patients with Bladder Cancer: A Population-based Study. Bladder Cancer 2022; 8:129-138. [PMID: 38993361 PMCID: PMC11181781 DOI: 10.3233/blc-211583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 01/19/2022] [Indexed: 11/15/2022]
Abstract
BACKGROUND The role of smoking in the prognosis of bladder cancer may significantly impact clinical management. It is also a considerable burden to Taiwan's economy and health of its citizens. OBJECTIVE To search Taiwan's National Health Insurance Research Database to determine whether smoking affected overall and cancer-specific mortality of patients with bladder cancer. METHODS We collected data on basic information, tumor stage, and comorbidities. Each smoking case was propensity score-matched by age, sex, and diagnosis year to one control individual among bladder cancer patients. The study comprised a never-smoke and an ever-smoke group, with each group including 4,728 patients after matching. We evaluated the association between smoking and mortalities in patients with bladder cancer. Cox proportional regression modeling was used to estimate hazard ratios (HRs) of overall and cancer-specific mortality rates. Stratified analysis was also performed to estimate risk ratios of overall and cancer-specific mortalities in bladder cancer patients with and without a history of smoking history among different subgroups. RESULTS The overall and specific mortality ratio of patients who were ever smokers were 1.15-fold and 1.16-fold, respectively, compared with those of never smokers (overall: 95% confidence interval [CI], 1.06-1.26, P = 0.0014; specific: 95% CI, 1.03-1. 03, P = 0.0176). Patients with bladder cancer who smoked and had significantly higher overall and specific mortality rates were those with Charlson Comorbidity Index (CCI)≥3 (overall: P = 0.0119; specific: P = 0.0092), diabetes mellitus (DM; overall: P = 0.0046; specific: P = 0.0419), and non-muscle-invasive bladder cancer (NMIBC; overall: P = 0.0038; specific: P = 0.0014). CONCLUSIONS Overall and specific mortality rates were significantly higher in the ever-smoke group than in the never-smoke group. The ever-smoke group with male sex, CCI≥3, DM, and NMIBC had increased risks for overall and specific mortality.
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Affiliation(s)
- Chung-Han Ho
- Department of Medical Research, Chi Mei Medical Center, Tainan, Taiwan
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Wen-Hsin Tseng
- Division of Urology, Department of Surgery, Chi Mei Medical Center, Tainan, Taiwan
| | - Steven K. Huang
- Division of Urology, Department of Surgery, Chi Mei Medical Center, Tainan, Taiwan
| | - Chien-Liang Liu
- Division of Urology, Department of Surgery, Chi Mei Medical Center, Tainan, Taiwan
| | - Yu-Cih Wu
- Department of Medical Research, Chi Mei Medical Center, Tainan, Taiwan
| | - Allen W. Chiu
- Department of Urology, Mackay Memorial Hospital, Taipei, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Khaa Hoo Ong
- Division of General Surgery, Department of Surgery, Chi Mei Medical Center, Tainan, Taiwan
- Institute of Biomedical Science, National SunYat-Sen University, Kaohsiung, Taiwan
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14
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Symeonidis EN, Lo KL, Chui KL, Vakalopoulos I, Sountoulides P. En bloc resection of bladder tumors: challenges and unmet needs in 2021. Future Oncol 2022; 18:2545-2558. [PMID: 35642479 DOI: 10.2217/fon-2021-1228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Non-muscle invasive bladder cancer accounts for the majority of new bladder cancer diagnoses, and endoscopic transurethral resection of bladder tumor (TURBT) represents the standard-of-care. Although a relatively safe and common procedure, TURBT is often hampered by the questionable quality of resection. The evolution of surgical techniques has brought en bloc resection of bladder tumor (ERBT) to the forefront. ERBT has emerged as an alternative to conventional TURBT, incorporating a more delicate en bloc sculpting and tumor excision, in contrast to 'piecemeal' resection by conventional TURBT. ERBT appears safe, feasible and effective with demonstrably higher rates of detrusor muscle in the pathologic specimen, all while providing better staging and obviating the need for a re-TURBT in selected patients. However, the method's adoption in the field is still limited. This review summarizes the recent evidence relevant to ERBT while further highlighting the technique's limitations and unmet needs.
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Affiliation(s)
- Evangelos N Symeonidis
- First Department of Urology, Aristotle University of Thessaloniki, School of Medicine, "G Gennimatas" General Hospital, Thessaloniki, 54635, Greece
| | - Ka-Lun Lo
- Department of Surgery, Division of Urology, The Chinese University of Hong Kong, Hong Kong SAR, The People's Republic of China
| | - Ka-Lun Chui
- Department of Surgery, Division of Urology, The Chinese University of Hong Kong, Hong Kong SAR, The People's Republic of China
| | - Ioannis Vakalopoulos
- First Department of Urology, Aristotle University of Thessaloniki, School of Medicine, "G Gennimatas" General Hospital, Thessaloniki, 54635, Greece
| | - Petros Sountoulides
- First Department of Urology, Aristotle University of Thessaloniki, School of Medicine, "G Gennimatas" General Hospital, Thessaloniki, 54635, Greece
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15
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Symeonidis EN, Baniotis P, Langas G, Stefanidis P, Tsiakaras S, Stratis M, Savvides E, Bouchalakis A, Petras S, Memmos D, Anastasiadis A, Mykoniatis I, Vakalopoulos I, Toutziaris C, Dimitriadis G, Sountoulides P. En bloc resection, is this the future of non-muscle invasive bladder cancer management? Presentation of our technique and brief review of the literature. Urologia 2022; 90:75-79. [PMID: 35467455 DOI: 10.1177/03915603221093739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
INTRODUCTION The quality of the initial transurethral resection of bladder tumors (TURBT) plays a key role in accurate local staging thus affecting treatment decision-making and disease prognosis. TURBT is still the gold standard for non-muscle invasive bladder cancer (NMIBC). However, en bloc resection of bladder tumors (ERBT) gradually expanded as a promising alternative to TURBT, aiming to overcome certain inherent limitations of conventional resection. We hereby describe a step-by-step bipolar ERBT technique and briefly review the current trends surrounding the role of various en bloc techniques in the field. CASE PRESENTATION We present the case of a 65-year old patient undergoing bipolar ERBT for a single, approximately 2 cm, papillary bladder mass. An experienced urologist completed the procedure within 17 min and without any intra- or postoperative complications. No conversion to TURBT was needed, and an adequate specimen for histological assessment was obtained. The patient made an uneventful recovery, and no recurrence was noted at 12-months. CONCLUSION Our initial experience demonstrates that ERBT via bipolar current is relatively quick, safe, and reliable. Prospective comparative clinical trials will examine its efficacy, and long-term oncological superiority in managing NMIBC.
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Affiliation(s)
- Evangelos N Symeonidis
- First Department of Urology, School of Medicine, "G. Gennimatas" General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Panagiotis Baniotis
- First Department of Urology, School of Medicine, "G. Gennimatas" General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Georgios Langas
- First Department of Urology, School of Medicine, "G. Gennimatas" General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Panagiotis Stefanidis
- First Department of Urology, School of Medicine, "G. Gennimatas" General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Stavros Tsiakaras
- First Department of Urology, School of Medicine, "G. Gennimatas" General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Michail Stratis
- First Department of Urology, School of Medicine, "G. Gennimatas" General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Eliophotos Savvides
- First Department of Urology, School of Medicine, "G. Gennimatas" General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Athanasios Bouchalakis
- First Department of Urology, School of Medicine, "G. Gennimatas" General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Stefanos Petras
- Department of Pathology, "G. Gennimatas" General Hospital, Thessaloniki, Greece
| | - Dimitrios Memmos
- First Department of Urology, School of Medicine, "G. Gennimatas" General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Anastasios Anastasiadis
- First Department of Urology, School of Medicine, "G. Gennimatas" General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Ioannis Mykoniatis
- First Department of Urology, School of Medicine, "G. Gennimatas" General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Ioannis Vakalopoulos
- First Department of Urology, School of Medicine, "G. Gennimatas" General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Chrysovalantis Toutziaris
- First Department of Urology, School of Medicine, "G. Gennimatas" General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Georgios Dimitriadis
- First Department of Urology, School of Medicine, "G. Gennimatas" General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Petros Sountoulides
- First Department of Urology, School of Medicine, "G. Gennimatas" General Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
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16
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Teoh JYC, Kamat AM, Black PC, Grivas P, Shariat SF, Babjuk M. Recurrence mechanisms of non-muscle-invasive bladder cancer - a clinical perspective. Nat Rev Urol 2022; 19:280-294. [PMID: 35361927 DOI: 10.1038/s41585-022-00578-1] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/17/2022] [Indexed: 12/24/2022]
Abstract
Non-muscle-invasive bladder cancer (NMIBC) is an early-stage cancer without invasion into the detrusor muscle layer. Transurethral resection of bladder tumour (TURBT) is a diagnostic and potentially curative procedure for NMIBC, but has some limitations, including difficulties in ascertaining complete tumour removal upon piecemeal resection and the possibility of tumour re-implantation after the procedure. The oncological control of NMIBC is far from satisfactory, with a 1-year recurrence rate of 15-61%, and a 5-year recurrence rate of 31-78%. Various recurrence mechanisms have been described for NMIBC, such as undetected tumours upon cystoscopy, incomplete resection during TURBT, tumour re-implantation after TURBT, drop metastasis from upper tract urothelial carcinoma and field change cancerization. Understanding the recurrence mechanisms from a clinical perspective has strong implications for the optimization of NMIBC oncological outcomes, as a cure for patients with NMIBC can only be achieved by tackling all possible recurrence mechanisms in a comprehensive manner.
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Affiliation(s)
- Jeremy Yuen-Chun Teoh
- S.H. Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong, Hong Kong, China. .,European Association of Urology-Young Academic Urologists (EAU-YAU) Urothelial Cancer Working Group, Amsterdam, Netherlands.
| | - Ashish M Kamat
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Peter C Black
- Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada
| | - Petros Grivas
- Division of Oncology, Department of Medicine, University of Washington, Washington, USA.,Fred Hutchinson Cancer Research Center, Seattle Cancer Care Alliance, Seattle, WA, USA
| | - Shahrokh F Shariat
- Department of Urology, Medical University of Vienna, Vienna, Austria.,Department of Urology, Weill Cornell Medical College, New York, NY, USA.,Department of Urology, University of Texas Southwestern, Dallas, TX, USA.,Institute for Urology and Reproductive Health, Sechenov University, Moscow, Russia.,Hourani Center for Applied Scientific Research, Al-Ahliyya Amman University, Amman, Jordan.,Department of Urology, 2nd Faculty of Medicine, Hospital Motol, Charles University, Prague, Czech Republic
| | - Marek Babjuk
- Department of Urology, Medical University of Vienna, Vienna, Austria.,Department of Urology, 2nd Faculty of Medicine, Hospital Motol, Charles University, Prague, Czech Republic
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17
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La probabilidad de detección de tumor residual en la segunda resección transuretral del cáncer de vejiga urotelial PT1 según los factores de riesgo. Actas Urol Esp 2022. [DOI: 10.1016/j.acuro.2021.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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18
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Jahnen M, Kirchhoff FP, Gschwend JE, Straub M. [Transurethral resection of the urinary bladder : Status quo and outlook on new developments]. Urologe A 2021; 60:1416-1423. [PMID: 34652474 DOI: 10.1007/s00120-021-01679-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/16/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND Transurethral resection of the urinary bladder (TURB) is the standard intervention in the diagnostic workup and treatment of non-muscle invasive bladder cancer. In order to minimize cancer recurrence and potential complications, continuous technical development of TURB is of high clinical interest. OBJECTIVES Presentation of the current standards and discussion of technological changes. MATERIALS AND METHODS Analysis of the current guideline recommendations and literature research. RESULTS The limitations of classic monopolar TURB is supplemented by new resection methods (en bloc) and technologies (bipolar and laser resection). Along with improved visualization through partially established technologies of photodynamic and digital image enhancement, there is potential for optimization regarding the likelihood of recurrences and complications as well as the histological quality of the resected material. CONCLUSION A positive impact on the oncological value and safety of TURB seems possible through the use of modern technologies. Further establishment up to evidence-based guideline recommendations are necessary.
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Affiliation(s)
- Matthias Jahnen
- Klinik und Poliklinik für Urologie, Universitätsklinikum rechts der Isar, Technische Universität München, Ismaninger Straße 22, 81675, München, Deutschland
| | - Florian P Kirchhoff
- Klinik und Poliklinik für Urologie, Universitätsklinikum rechts der Isar, Technische Universität München, Ismaninger Straße 22, 81675, München, Deutschland
| | - Jürgen E Gschwend
- Klinik und Poliklinik für Urologie, Universitätsklinikum rechts der Isar, Technische Universität München, Ismaninger Straße 22, 81675, München, Deutschland
| | - Michael Straub
- Klinik und Poliklinik für Urologie, Universitätsklinikum rechts der Isar, Technische Universität München, Ismaninger Straße 22, 81675, München, Deutschland.
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19
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Yu C, Jordahl KM, Bassett JK, Joo JE, Wong EM, Brinkman MT, Schmidt DF, Bolton DM, Makalic E, Brasky TM, Shadyab AH, Tinker LF, Longano A, Hopper JL, English DR, Milne RL, Bhatti P, Southey MC, Giles GG, Dugué PA. Smoking Methylation Marks for Prediction of Urothelial Cancer Risk. Cancer Epidemiol Biomarkers Prev 2021; 30:2197-2206. [PMID: 34526299 DOI: 10.1158/1055-9965.epi-21-0313] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/22/2021] [Accepted: 09/10/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Self-reported information may not accurately capture smoking exposure. We aimed to evaluate whether smoking-associated DNA methylation markers improve urothelial cell carcinoma (UCC) risk prediction. METHODS Conditional logistic regression was used to assess associations between blood-based methylation and UCC risk using two matched case-control samples: 404 pairs from the Melbourne Collaborative Cohort Study (MCCS) and 440 pairs from the Women's Health Initiative (WHI) cohort. Results were pooled using fixed-effects meta-analysis. We developed methylation-based predictors of UCC and evaluated their prediction accuracy on two replication data sets using the area under the curve (AUC). RESULTS The meta-analysis identified associations (P < 4.7 × 10-5) for 29 of 1,061 smoking-associated methylation sites, but these were substantially attenuated after adjustment for self-reported smoking. Nominally significant associations (P < 0.05) were found for 387 (36%) and 86 (8%) of smoking-associated markers without/with adjustment for self-reported smoking, respectively, with same direction of association as with smoking for 387 (100%) and 79 (92%) markers. A Lasso-based predictor was associated with UCC risk in one replication data set in MCCS [N = 134; odds ratio per SD (OR) = 1.37; 95% CI, 1.00-1.90] after confounder adjustment; AUC = 0.66, compared with AUC = 0.64 without methylation information. Limited evidence of replication was found in the second testing data set in WHI (N = 440; OR = 1.09; 95% CI, 0.91-1.30). CONCLUSIONS Combination of smoking-associated methylation marks may provide some improvement to UCC risk prediction. Our findings need further evaluation using larger data sets. IMPACT DNA methylation may be associated with UCC risk beyond traditional smoking assessment and could contribute to some improvements in stratification of UCC risk in the general population.
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Affiliation(s)
- Chenglong Yu
- Precision Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, Victoria, Australia
| | - Kristina M Jordahl
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington.,Department of Epidemiology, School of Public Health, University of Washington, Seattle, Washington
| | - Julie K Bassett
- Cancer Epidemiology Division, Cancer Council Victoria, Melbourne, Victoria, Australia
| | - Jihoon Eric Joo
- Department of Clinical Pathology, Melbourne Medical School, The University of Melbourne, Parkville, Victoria, Australia
| | - Ee Ming Wong
- Precision Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, Victoria, Australia
| | - Maree T Brinkman
- Cancer Epidemiology Division, Cancer Council Victoria, Melbourne, Victoria, Australia
| | - Daniel F Schmidt
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Victoria, Australia.,Department of Data Science & AI, Faculty of IT, Monash University, Clayton, Victoria, Australia
| | - Damien M Bolton
- Department of Surgery, University of Melbourne and Olivia Newton-John Cancer Centre, Austin Hospital, Melbourne, Victoria, Australia
| | - Enes Makalic
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Theodore M Brasky
- Division of Medical Oncology, The Ohio State University College of Medicine, Columbus, Ohio
| | - Aladdin H Shadyab
- Herbert Wertheim School of Public Health and Human Longevity Science, University of California, San Diego, La Jolla, California
| | - Lesley F Tinker
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Anthony Longano
- Department of Anatomical Pathology, Eastern Health, Box Hill Hospital, Box Hill, Victoria, Australia
| | - John L Hopper
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Dallas R English
- Cancer Epidemiology Division, Cancer Council Victoria, Melbourne, Victoria, Australia.,Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Roger L Milne
- Precision Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, Victoria, Australia.,Cancer Epidemiology Division, Cancer Council Victoria, Melbourne, Victoria, Australia.,Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Parveen Bhatti
- Cancer Control Research, BC Cancer Research Centre, Vancouver, British Columbia, Canada
| | - Melissa C Southey
- Precision Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, Victoria, Australia.,Cancer Epidemiology Division, Cancer Council Victoria, Melbourne, Victoria, Australia.,Department of Clinical Pathology, Melbourne Medical School, The University of Melbourne, Parkville, Victoria, Australia
| | - Graham G Giles
- Precision Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, Victoria, Australia.,Cancer Epidemiology Division, Cancer Council Victoria, Melbourne, Victoria, Australia.,Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Pierre-Antoine Dugué
- Precision Medicine, School of Clinical Sciences at Monash Health, Monash University, Clayton, Victoria, Australia. .,Cancer Epidemiology Division, Cancer Council Victoria, Melbourne, Victoria, Australia.,Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Victoria, Australia
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20
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Bonfante G, Puliatti S, Sighinolfi MC, Eissa A, Ciarlariello S, Ferrari R, Ticonosco M, Goezen AS, Guven S, Rassweiler J, Bianchi G, Rocco B, Micali S. A survey-based study on the spread of en-bloc resection of bladder tumors among IEA and ESUT members. Minerva Urol Nephrol 2021; 73:413-416. [PMID: 34494413 DOI: 10.23736/s2724-6051.21.04627-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Giulia Bonfante
- Department of Urology, University of Modena and Reggio Emilia, Modena, Italy -
| | - Stefano Puliatti
- Department of Urology, University of Modena and Reggio Emilia, Modena, Italy.,ORSI Academy, Melle, Belgium.,Department of Urology, Onze Lieve Vrouwe Hospital, Aalst, Belgium
| | - Maria C Sighinolfi
- Department of Urology, University of Modena and Reggio Emilia, Modena, Italy
| | - Ahmed Eissa
- Department of Urology, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Silvia Ciarlariello
- Department of Urology, University of Modena and Reggio Emilia, Modena, Italy
| | - Riccardo Ferrari
- Department of Urology, University of Modena and Reggio Emilia, Modena, Italy
| | - Marco Ticonosco
- Department of Urology, University of Modena and Reggio Emilia, Modena, Italy
| | - Ali Serdar Goezen
- Department of Urology, SLK-Kliniken Heilbronn, University of Heidelberg, Heidelberg, Germany
| | - Selcuk Guven
- Department of Urology, Necmettin Erbakan University, Meram School of Medicine, Konya, Turkey
| | - Jens Rassweiler
- Department of Urology, SLK-Kliniken Heilbronn, University of Heidelberg, Heidelberg, Germany
| | - Giampaolo Bianchi
- Department of Urology, University of Modena and Reggio Emilia, Modena, Italy
| | - Bernardo Rocco
- Department of Urology, University of Modena and Reggio Emilia, Modena, Italy
| | - Salvatore Micali
- Department of Urology, University of Modena and Reggio Emilia, Modena, Italy
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21
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Application of SPRi Biosensors for Determination of 20S Proteasome and UCH-L1 Levels in the Serum and Urine of Transitional Bladder Cancer Patients. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11177835] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The ubiquitin–proteasome system (UPS) participates in the degradation of proteins which play an important role in regulating the cell cycle, apoptosis, and angiogenesis, as well as in the immune system. These processes are important in carcinogenesis. Transitional cell carcinoma (TCC) is one of the predominant types of bladder cancer. The relationship between the ubiquitin–proteasome system and cancer progression has become a topic of increasing interest among researchers. In this work, we propose an application of surface plasmon resonance imaging (SPRi)-based biosensors for the detection of 20S proteasome and ubiquitin carboxy-terminal hydrolase L1 (UCH-L1) in the blood serum and urine of patients with TCC. The aim of the study was to determine 20S proteasome and UCH-L1 concentrations and to correlate the results with clinicopathological parameters. The group of subjects consisted of 82 patients with confirmed TCC, in addition to a control group of 27 healthy volunteers. It was found that 20S proteasome and UCH-L1 concentrations were significantly elevated in both the serum and urine of TCC patients, compared with the healthy subjects. There was a correlation between 20S proteasome concentrations in serum and urine, as well as between serum proteasome and UCH-L1 concentration. The SPRi biosensor sensitive to 20S proteasome using PSI inhibitor as the receptor, and the SPRi biosensor sensitive to the UCH-L1 protein using the protein-specific antibody as the receptor is suitable for the determination of 20S proteasome and UCH-L1 in body fluids and can serve as useful tools in the investigation of cancer biomarkers.
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22
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Dobruch J, Oszczudłowski M. Bladder Cancer: Current Challenges and Future Directions. MEDICINA (KAUNAS, LITHUANIA) 2021; 57:749. [PMID: 34440955 PMCID: PMC8402079 DOI: 10.3390/medicina57080749] [Citation(s) in RCA: 129] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 07/18/2021] [Accepted: 07/20/2021] [Indexed: 12/24/2022]
Abstract
Bladder cancer (BCa) is the most common malignancy of the urinary tract and one of the most prevalent cancers worldwide. While the clinical approach to BCa has remained largely unchanged for many years, recent discoveries have paved the way to a new era of diagnosis and management of the disease. BCa-specific mortality started to decrease in the regions with a wide range of activities leading to greater social awareness of the risk factors and the decline in carcinogenic exposure. The urologic community refines the role of transurethral surgery towards more rigorous and high-quality techniques. New agents have been approved for patients with BCG failure who faced radical cystectomy so far. Although radical removal of the bladder is the gold standard for muscle invasive cancer management, the extent and clinical value of lymphadenectomy is currently heavily challenged in randomized trials. Furthermore, alternatives to perioperative chemotherapy have arisen to increase the likelihood of complete treatment delivery and successful oncological outcomes. Finally, improvements in molecular biology and our understanding of tumorigenesis open the era of personalized medicine in bladder cancer. In the present review, the status and future directions in bladder cancer epidemiology, diagnosis and management are thoroughly discussed.
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Affiliation(s)
- Jakub Dobruch
- Centre of Postgraduate Medical Education, Department of Urology, 00-416 Warsaw, Poland;
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23
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Schuettfort VM, Pradere B, Compérat E, Abufaraj M, Shariat SF. Novel transurethral resection technologies and training modalities in the management of nonmuscle invasive bladder cancer: a comprehensive review. Curr Opin Urol 2021; 31:324-331. [PMID: 33973535 DOI: 10.1097/mou.0000000000000892] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW Conventional transurethral resection (TURBT) with tumor fragmentation is the primary step in the surgical treatment of nonmuscle invasive bladder cancer. Recently, new surgical techniques and training modalities have emerged with the aim to overcome short-comings of TURBT and improve oncologic outcomes. In this review, we provide a comprehensive update of recent techniques/techniques that aim to improve upon conventional TURBT and beyond. RECENT FINDINGS A systemic approach during conventional TURBT that features the use of a surgical checklist has been shown to improve recurrence-free survival. Several simulators have been developed and validated to provide additional training opportunities. However, transfer of improved simulator performance into real world surgery still requires validation. While there is no convincing data that demonstrate superior outcomes with bipolar TURBT, en-bloc resection already promises to offer lower rates of complications as well as potentially lower recurrence probabilities in select patients. SUMMARY TURBT remains the quintessential procedure for the diagnosis and treatment of bladder cancer. Urologists need to be aware of the importance and challenges of this procedure. Aside of embracing new resection techniques and a conceptual-systematic approach, training opportunities should be expanded upon to improve patient outcomes.
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Affiliation(s)
- Victor M Schuettfort
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
- Department of Urology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Benjamin Pradere
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Eva Compérat
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Mohammad Abufaraj
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
- Division of Urology, Department of Special Surgery, Jordan University Hospital, The University of Jordan, Amman, Jordan
| | - Shahrokh F Shariat
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
- Division of Urology, Department of Special Surgery, Jordan University Hospital, The University of Jordan, Amman, Jordan
- Institute for Urology and Reproductive Health, Sechenov University, Moscow, Russia
- Department of Urology, Weill Cornell Medical College, New York, New York
- Department of Urology, University of Texas Southwestern, Dallas, Texas, USA
- Department of Urology, Second Faculty of Medicine, Charles University, Prague, Czech Republic
- Karl Landsteiner Institute of Urology and Andrology, Vienna, Austria
- European Association of Urology Research Foundation, Arnhem, The Netherlands
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24
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Rojewski AM, Fucito LM, Baker NL, Palmer AM, Foster MG, Warren GW, Bernstein SL, Toll BA. Preoperative contingency management intervention for smoking abstinence in cancer patients: trial protocol for a multisite randomised controlled trial. BMJ Open 2021; 11:e051226. [PMID: 34187835 PMCID: PMC8245459 DOI: 10.1136/bmjopen-2021-051226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
INTRODUCTION Continued smoking following a cancer diagnosis has substantial health risks including increased overall and cancer-specific mortality, risk of secondary malignancies, cancer treatment toxicity and risk of surgical complications. These risks can be mitigated by quitting smoking. The preoperative period represents a prime opportunity in which to administer robust smoking cessation treatment to both improve health and support and improve surgical outcomes. We will conduct a randomised clinical trial to evaluate the effectiveness of financial incentives delivered contingent on biochemically verified smoking abstinence (contingency management (CM)) in patients with cancer undergoing surgery. METHODS AND ANALYSIS The study will take place across two study sites, and participants (N=282) who smoke, are diagnosed with or suspected to have any type of operable cancer and have a surgical procedure scheduled in the next 10 days to 5 weeks will be randomised to receive standard care plus Monitoring Only or CM prior to surgery. All patients will receive breath carbon monoxide (CO) tests three times per week, nicotine replacement therapy and counselling. The CM group will also earn payments for self-reported smoking abstinence confirmed by CO breath test ≤4 ppm on an escalating schedule of reinforcement (with a reset if they smoked). Point prevalence abstinence (PPA) outcomes (self-report of 7-day abstinence confirmed by CO≤4 ppm and/or anabasine ≤2 ng/mL) will be assessed on the day of surgery and 6 months after surgery. The effect of CM on 7-day PPA at the time of surgery and 6-month follow-up will be modelled using generalised linear mixed effects models. ETHICS AND DISSEMINATION This study has been reviewed and approved by the Medical University of South Carolina Institutional Review Board. We will disseminate our scientific results through traditional research-oriented outlets such as presentations at scientific meetings and publications in peer-reviewed journals. TRIAL REGISTRATION NUMBER NCT04605458.
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Affiliation(s)
- Alana M Rojewski
- Public Health Sciences, Medical University of South Carolina, Charleston, South Carolina, USA
- Hollings Cancer Center, Charleston, South Carolina, USA
| | - Lisa M Fucito
- Psychiatry, Yale School of Medicine, New Haven, Connecticut, USA
| | - Nathaniel L Baker
- Public Health Sciences, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Amanda M Palmer
- Public Health Sciences, Medical University of South Carolina, Charleston, South Carolina, USA
- Pulmonary, Critical Care, Allergy, and Sleep Medicine, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Madeline G Foster
- Public Health Sciences, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Graham W Warren
- Hollings Cancer Center, Charleston, South Carolina, USA
- Radiation Oncology, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Steven L Bernstein
- Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA
- Emergency Medicine, Yale School of Medicine, New Haven, Connecticut, USA
- Geisel School of Medicine at Dartmouth, Hanover, New Hampshire, USA
| | - Benjamin A Toll
- Public Health Sciences, Medical University of South Carolina, Charleston, South Carolina, USA
- Hollings Cancer Center, Charleston, South Carolina, USA
- Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, South Carolina, USA
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25
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Paciotti M, Casale P, Colombo P, Fasulo V, Saita A, Lughezzani G, Contieri R, Buffi NM, Lazzeri M, Guazzoni G, Hurle R. Long-term Follow-up After En Bloc Transurethral Resection of Non-muscle-invasive Bladder Cancer: Results from a Single-center Experience. EUR UROL SUPPL 2021; 26:64-71. [PMID: 34337509 PMCID: PMC8317892 DOI: 10.1016/j.euros.2021.01.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/28/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND En bloc resection (ERBT) is a valid alternative to piecemeal resection for non-muscle-invasive bladder cancer (NMIBC), guaranteeing pathological outcomes. However, very few studies investigated long-term oncological outcomes of ERBT. OBJECTIVE To report long-term oncological outcome of ERBT. DESIGN SETTING AND PARTICIPANTS This is a retrospective analysis of prospectively collected data. We included patients who underwent ERBT from June 2010 to February 2014, and were diagnosed with NMIBC at pathology evaluation. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS The primary study endpoint was recurrence-free survival at 5 yr. Secondary outcomes were presence of detrusor muscle, recurrence rate at the first follow-up cystoscopy, progression to muscle-invasive bladder cancer (MIBC) at 5 yr, and factors associated with long-term oncological outcomes. Kaplan-Meier curves were used to describe recurrence-free survival time. A univariate analysis was used to investigate factors associated with recurrence. RESULTS AND LIMITATIONS Overall, 74 patients were included in this study. The median age was 71 (66-76) yr. Most of the patients presented with only one bladder tumor, and the median tumor diameter was 2 (interquartile range [IQR] 1-2.5) cm. After histopathological examination, eight, 35, and 31 patients were diagnosed with low-, intermediate-, and high-risk disease, respectively. All the en bloc resected tumors showed the presence of detrusor muscle. The median follow-up was 72 (IQR 66-90) mo. The recurrence rate at the first follow-up cystoscopy was 5.4% (four out of 74 patients). Overall, 57 (77%) patients were free of recurrence at 5 yr. No progression to MIBC was observed: progression-free survival was 100%. Limitations include retrospective design and small size. CONCLUSIONS Our findings showed that ERBT for NMIBC presents an optimal long-term oncological outcome. Further studies with larger cohorts are necessary for confirming our preliminary results and for a direct comparison with the traditional piecemeal resection. PATIENT SUMMARY In case of superficial bladder tumors, transurethral resection of the entire tumor and its base in one piece seems to provide good long-term results in terms of recurrence and progression rates.
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Affiliation(s)
- Marco Paciotti
- Department of Urology, Humanitas Clinical and Research Hospital - IRCCS, Rozzano, MI, Italy
- Department of Biomedical Science, Humanitas University, Pieve Emanuele, Milano, Italy
| | - Paolo Casale
- Department of Urology, Humanitas Clinical and Research Hospital - IRCCS, Rozzano, MI, Italy
| | - Piergiuseppe Colombo
- Department of Pathology, Humanitas Clinical and Research Hospital - IRCCS, Rozzano, MI, Italy
| | - Vittorio Fasulo
- Department of Urology, Humanitas Clinical and Research Hospital - IRCCS, Rozzano, MI, Italy
- Department of Biomedical Science, Humanitas University, Pieve Emanuele, Milano, Italy
| | - Alberto Saita
- Department of Urology, Humanitas Clinical and Research Hospital - IRCCS, Rozzano, MI, Italy
| | - Giovanni Lughezzani
- Department of Urology, Humanitas Clinical and Research Hospital - IRCCS, Rozzano, MI, Italy
- Department of Biomedical Science, Humanitas University, Pieve Emanuele, Milano, Italy
| | - Roberto Contieri
- Department of Urology, Humanitas Clinical and Research Hospital - IRCCS, Rozzano, MI, Italy
- Department of Biomedical Science, Humanitas University, Pieve Emanuele, Milano, Italy
| | - Nicolò Maria Buffi
- Department of Urology, Humanitas Clinical and Research Hospital - IRCCS, Rozzano, MI, Italy
- Department of Biomedical Science, Humanitas University, Pieve Emanuele, Milano, Italy
| | - Massimo Lazzeri
- Department of Urology, Humanitas Clinical and Research Hospital - IRCCS, Rozzano, MI, Italy
| | - Giorgio Guazzoni
- Department of Urology, Humanitas Clinical and Research Hospital - IRCCS, Rozzano, MI, Italy
- Department of Biomedical Science, Humanitas University, Pieve Emanuele, Milano, Italy
| | - Rodolfo Hurle
- Department of Urology, Humanitas Clinical and Research Hospital - IRCCS, Rozzano, MI, Italy
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26
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Teoh JYC, Mayor N, Li KM, Lo KL, Ng CF, Mostafid H. En-bloc resection of bladder tumour as primary treatment for patients with non-muscle-invasive bladder cancer: routine implementation in a multi-centre setting. World J Urol 2021; 39:3353-3358. [PMID: 33774705 DOI: 10.1007/s00345-021-03675-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 03/16/2021] [Indexed: 10/21/2022] Open
Abstract
PURPOSE To investigate the technical success rate and 30-day complications of en-bloc resection of bladder tumour (ERBT) upon routine implementation regardless of tumour size. METHODS This is a prospective, multi-centre, study on routine implementation of ERBT for patients with bladder tumours requiring transurethral surgery. Surgeons were allowed to cross over to conventional transurethral resection of bladder tumour (TURBT) when necessary. We performed an analysis for patients who had ERBT/TURBT as the definitive treatment. Study outcomes included the technical success rate of ERBT and 30-day complication rate. Multivariate logistic regression analysis was performed to investigate for predictors of a successful ERBT and factors associated with 30-day complications. RESULTS A total of 135 patients were included in this study. The majority of the patients (80.0%) had bladder tumours of ≤ 3 cm. ERBT was successful in 99 patients, resulting in an overall technical success rate of 73.3%. When stratified according to tumour size, the technical success rates of ERBT were 94.3%, 82.2%, 75%, 84.3% and 29.6% for bladder tumour sizes of < 1 cm, 1.01-2 cm, 2.01-3 cm, ≤ 3 cm and > 3 cm respectively. Upon multivariate analysis, tumour size was the only significant factor predicting the success of ERBT (OR 0.920, 95% CI 0.882-0.960, p < 0.001). Moreover, ERBT was not a significant factor associated with 30-day complications. CONCLUSION EBRT achieved a good technical success rate for the majority of patients with bladder tumours ≤ 3 cm. Regardless of tumour size, EBRT-first approach was safe to implement into routine clinical practice.
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Affiliation(s)
- Jeremy Yuen-Chun Teoh
- Department of Surgery, S.H. Ho Urology Centre, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China.
| | - Nikhil Mayor
- Department of Urology, Royal Surrey County Hospital, Guildford, Surrey, UK
| | - Kai-Man Li
- Department of Surgery, North District Hospital, Hong Kong, China
| | - Ka-Lun Lo
- Department of Surgery, North District Hospital, Hong Kong, China
| | - Chi-Fai Ng
- Department of Surgery, S.H. Ho Urology Centre, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Hugh Mostafid
- Department of Urology, Royal Surrey County Hospital, Guildford, Surrey, UK.
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27
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Transurethral resection of bladder tumor and the need for re-transurethral resection of bladder tumor: time to change our practice? Curr Opin Urol 2020; 30:370-376. [PMID: 32205809 DOI: 10.1097/mou.0000000000000751] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
PURPOSE OF REVIEW To summarize the current knowledge on the role of repeated transurethral resection of the bladder (re-TURBT) at the light of recently published trials that indicate the possibility to safely avoid it in well selected patients. RECENT FINDINGS Recently published trials tried to predict the histology of re-TURBT with the aim of improving patients' selection for this procedure. The en bloc resection technique seems to improve the quality of the resection, thereby diminishing and even eliminating the risk of upstaging and the residual disease rate after TURBT. Moreover, the introduction of multiparametric MRI (mpMRI) in bladder cancer showed initial promising results and aims, in the next future, to play a role in the selection of patients for re-TURBT. SUMMARY International guidelines agree to recommend re-TURBT in case of incomplete first resection and in T1 tumors. Conversely, the performance of re-TURBT in case of high-grade/high-risk Ta or in case of absence of detrusor muscle in TURBT specimen remains a matter of debate. Re-TURBT aims to reduce the risk of understaging the disease and to remove residual disease in case of persistent nonmuscle invasive bladder cancer. Actually, upstaging at re-TURBT is not a negligible event in T1 tumors (8-15%), while is quite uncommon in case of Ta tumors (0.4%). Residual disease at re-TURBT is usually found in the majority of patients (55-60%) and seems to impact oncological outcomes, even if recent evidence mitigated its relevance as prognostic factor.
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Abstract
PURPOSE OF REVIEW En bloc resection of bladder tumor (ERBT) is an innovative new surgical technique, the use of which is becoming increasingly widespread. In this review, we analyze the recent literature and explore new developments, which may impact the future role of en bloc bladder surgery. RECENT FINDINGS ERBT increases the frequency with which detrusor muscle is present in the specimen (to 95%) and offers a significant improvement in the quality of the resection specimen, thereby helping with T1 substaging. Furthermore, the laser treatment reduces the rate of obturator nerve-related bladder perforation. SUMMARY ERBT represents a considerable advancement in the surgical management of nonmuscle-invasive bladder cancer. It delivers excellent oncological results and is a well tolerated procedure. VIDEO In the accompanying video, we shortly report the different modalities and energy sources used for bladder cancer resection. The three strategies are currently employed at the Fundació Puigvert (Barcelona). VIDEO ABSTRACT:.
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29
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Maheshwari PN, Arora AM. Authors Reply Re: Maheshwari PN, Arora AM, Sane MS, Jadhao VG. Safety, feasibility, and quality of holmium laser en bloc resection of nonmuscle invasive bladder tumors: A single-center experience. Indian J Urol 2020;36:106-11. Indian J Urol 2020; 36:237-238. [PMID: 33082648 PMCID: PMC7531366 DOI: 10.4103/iju.iju_212_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 04/30/2020] [Indexed: 11/25/2022] Open
Affiliation(s)
| | - Amandeep M Arora
- Department of Urology, Fortis Hospital Mulund, Mumbai, Maharashtra, India
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30
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Kamalov AA, Sorokin NI, Dymov AM, Kislyakov DA, Kamalov DM, Dzitiev VK, Pshihachev AM, Strigunov AA, Afanasyevskaya EV, Tivtikyan AS, Nesterova OY. TECHNICAL ASPECTS OF LASER EN BLOC RESECTION OF THE BLADDER TUMOR FOR NON-MUSCLE-INVASIVE BLADDER CANCER. SURGICAL PRACTICE 2020. [DOI: 10.38181/2223-2427-2020-1-53-58] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
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.
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Affiliation(s)
| | | | - A. M. Dymov
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University)
| | - D. A. Kislyakov
- Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University)
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Grimberg DC, Shah A, Inman BA. En Bloc Resection of Bladder Tumors: Style or Substance? Eur Urol 2020; 78:570-571. [PMID: 32527690 DOI: 10.1016/j.eururo.2020.05.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 05/14/2020] [Indexed: 11/30/2022]
Affiliation(s)
- Dominic C Grimberg
- Division of Urology, Duke Cancer Institute, Duke University Medical Center, Durham, NC, USA
| | - Ankeet Shah
- Division of Urology, Duke Cancer Institute, Duke University Medical Center, Durham, NC, USA
| | - Brant A Inman
- Division of Urology, Duke Cancer Institute, Duke University Medical Center, Durham, NC, USA.
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Yang Y, Liu C, Yang X, Wang D. Transurethral en bloc resection with monopolar current for non-muscle invasive bladder cancer based on TNM system. Transl Cancer Res 2020; 9:2210-2219. [PMID: 35117581 PMCID: PMC8798135 DOI: 10.21037/tcr.2020.03.48] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 02/28/2020] [Indexed: 11/28/2022]
Abstract
Background To evaluate the surgical safety and quality of transurethral en bloc resection with monopolar current for non-muscle invasive bladder cancer (NMIBC) based on the tumour, node, metastasis (TNM) classification system, and report the midterm oncological outcome. Methods From October 2015 to June 2017, en bloc resection of bladder tumor (ERBT) and transurethral resection of bladder tumor (TURBT) were performed in 96 and 87 patients clinically diagnosed with NMIBC in the prospective case-control trial, respectively. Operative details, intraoperative and postoperative complications regarded as safety outcomes were documented. The quality of ERBT was judged by the histopathological examination of tumor specimens from initial resection and second TURBT, random bladder biopsy and follow-up recurrence rate. Results Operative time, obturator nerve reflex, irrigation and catheterization time were similar in the two groups. Bladder perforation was occurred in 2 patients during ERBT and 9 patients during TURBT (2/96 vs. 9/87, P=0.019). Compared with TURBT group, the ratio of detrusor muscle (DM) identified in pathologic T1 tumor specimens was higher (P=0.024), but lower in pathologic Ta tumor specimens in ERBT group (P<0.001). The residual tumor identified in ERBT group was lower than that in TURBT group during second TURBT (2/28 vs. 10/32, P=0.020). The recurrence-free survival rate did not differ significantly between the two groups after 24 months follow-up. Conclusions ERBT based on TNM system is a safe and feasible technique to treat patients with NMIBC. Besides, ERBT may reduce the proportion of bladder perforation and residual tumor during initial resection.
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Affiliation(s)
- Yongjun Yang
- First Clinical Medical College, Shanxi Medical University, Taiyuan 030000, China
| | - Chao Liu
- First Clinical Medical College, Shanxi Medical University, Taiyuan 030000, China
| | - Xiaofeng Yang
- First Clinical Medical College, Shanxi Medical University, Taiyuan 030000, China
| | - Dongwen Wang
- First Clinical Medical College, Shanxi Medical University, Taiyuan 030000, China
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Mostafid H, Babjuk M, Bochner B, Lerner SP, Witjes F, Palou J, Roupret M, Shariat S, Gontero P, van Rhijn B, Zigeuner R, Sylvester R, Comperat E, Burger M, Malavaud B, Soloway M, Williams S, Black P, Daneshmand S, Steinberg G, Brausi M, Catto J, Kamat AM. Transurethral Resection of Bladder Tumour: The Neglected Procedure in the Technology Race in Bladder Cancer. Eur Urol 2020; 77:669-670. [PMID: 32192815 DOI: 10.1016/j.eururo.2020.03.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 03/05/2020] [Indexed: 10/24/2022]
Abstract
Transurethral resection of bladder tumour is the initial, most critical step in the management of bladder cancer; as such, this is a call to arms for the urological community to it the due diligence it deserves regarding technology and training.
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Affiliation(s)
| | - Marko Babjuk
- Department of Urology, Hospital Motol, Second Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Bernard Bochner
- Urologic Surgery Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Seth P Lerner
- Scott Department of Urology, Baylor College of Medicine, Houston, TX, USA
| | - Fred Witjes
- Nijmegen Medical Centre, Radboud University, Nijmegen, The Netherlands
| | - Joan Palou
- Department of Urology, Fundacio Puigvert, Universidad Autonoma de Barcelona, Barcelona, Spain
| | - Morgan Roupret
- Department of Urology, Hopital Pitie-Salpetriere, Assistance Publique-Hopitaux de Paris Sorbonne Universitaire, Paris, France
| | - Sharokh Shariat
- Department of Urology and Comprehensive Cancer Centre, Vienna General Hospital, Medical University of Vienna, Vienna, Austria
| | - Paolo Gontero
- Division of Urology, Molinette Hospital, University of Torino School of Medicine, Torino, Italy
| | - Bas van Rhijn
- Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - Richard Zigeuner
- Department of Urology, Medical University of Graz, Graz, Austria
| | | | - Eva Comperat
- Department of Pathology, Hopital Tenon, Group Hospitalier Est Parisian, Assistance Publique Hopitaux de Paris, Paris, France
| | - Maximilian Burger
- Department of Urology, Caritas St Josef Medical Centre, University of Regensburg, Regensburg, Germany
| | - Bernard Malavaud
- Department of Urology, Institut Universitaire du Cancer, Toulouse, France
| | | | | | - Peter Black
- Department of Urologic Sciences, University of British Columbia, Vancouver, Canada
| | - Siamak Daneshmand
- Institute of Urology, USC/Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - Gary Steinberg
- Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA
| | | | - Jim Catto
- Academic Urology Unit, University of Sheffield, Sheffield, UK
| | - Ashish M Kamat
- Department of Urology, MD Anderson Cancer Center, Houston, TX, USA.
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Yang Y, Yang X, Liu C, Li J. Preliminary study on the application of en bloc resection combined with near-infrared molecular imaging technique in the diagnosis and treatment of bladder cancer. World J Urol 2020; 38:3169-3176. [PMID: 32130476 DOI: 10.1007/s00345-020-03143-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Accepted: 02/19/2020] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND To evaluate the surgical safety of en bloc resection of bladder tumor (ERBT) and the effectiveness of ERBT combined with near-infrared (NIR) imaging technique in the diagnosis and treatment of non-muscle invasive bladder cancer (NMIBC). METHODS From October 2017 to June 2018, 26 patients newly diagnosed with single NMIBC were included in this retrospectively trial. All patients received ERBT with monopolar current. After surgery, the fresh specimen was incubated with anti-CD47-Alexa Fluor 790, and then imaged under NIR imaging technique. Operative details, intraoperative and postoperative complications of ERBT regarded as safety outcomes, the mean fluorescence intensity (MFI) of tumor tissue and adjacent normal background tissue, and 12 months follow-up data were analyzed. RESULTS Of 26 collected patients, obturator nerve reflex was occurred in six patients during tumor resection, and only one patient was observed with bladder perforation. In NIR gray image, the gray scale of MFI of tumor tissue were 132.31 ± 6.67 and the adjacent normal background tissue were 52.27 ± 12.09. The result showed a significantly higher MFI signals in tumor tissue compared to adjacent normal background tissue (P < 0.001). The recurrence-free survival rate at 12 month was 96.15%. CONCLUSIONS ERBT with monopolar current is a safe and feasible technique to treat patients with NMIBC. A integrated bladder tumor tissue-bound anti-CD47-Alexa Fluor 790 was detected under NIR light, and the NIR image indicates that higher MFI signals in surgical margin is a predictive factor for residual tumor in patients with NMIBC after ERBT.
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Affiliation(s)
- Yongjun Yang
- First Clinical Medical College, Shanxi Medical University, Taiyuan, China
| | - Xiaofeng Yang
- First Clinical Medical College, Shanxi Medical University, Taiyuan, China.
| | - Chao Liu
- First Clinical Medical College, Shanxi Medical University, Taiyuan, China
| | - Jiawei Li
- First Clinical Medical College, Shanxi Medical University, Taiyuan, China
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