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Wu Y, Wu H, Lu X, Chen Y, Zhang X, Ju J, Zhang D, Zhu B, Huang S. Development and Evaluation of Targeted Optical Imaging Probes for Image‐Guided Surgery in Head and Neck Cancer. ADVANCED THERAPEUTICS 2022. [DOI: 10.1002/adtp.202100196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yue Wu
- Department of Oral and Maxillofacial Surgery Shandong Provincial Hospital Cheeloo College of Medicine Shandong University Jinan Shandong 250021 China
| | - Haiwei Wu
- Department of Oral and Maxillofacial Surgery Shandong Provincial Hospital Cheeloo College of Medicine Shandong University Jinan Shandong 250021 China
| | - Xiaoya Lu
- Department of Oral and Maxillofacial Surgery Shandong Provincial Hospital Cheeloo College of Medicine Shandong University Jinan Shandong 250021 China
| | - Yi Chen
- Department of Oral and Maxillofacial Surgery Shandong Provincial Hospital Cheeloo College of Medicine Shandong University Jinan Shandong 250021 China
| | - Xue Zhang
- University of Jinan Jinan Shandong 250021 China
| | - Jiandong Ju
- Department of Oral and Maxillofacial Surgery Shandong Provincial Hospital Cheeloo College of Medicine Shandong University Jinan Shandong 250021 China
| | - Dongsheng Zhang
- Department of Oral and Maxillofacial Surgery Shandong Provincial Hospital Cheeloo College of Medicine Shandong University Jinan Shandong 250021 China
| | - Baocun Zhu
- University of Jinan Jinan Shandong 250021 China
| | - Shengyun Huang
- Department of Oral and Maxillofacial Surgery Shandong Provincial Hospital Cheeloo College of Medicine Shandong University Jinan Shandong 250021 China
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Mulawkar PM, Sharma G, Tamhankar A, Shah U, Raheem R. Role of Macroscopic Image Enhancement in Diagnosis of Non-Muscle-Invasive Bladder Cancer: An Analytical Review. Front Surg 2022; 9:762027. [PMID: 35265660 PMCID: PMC8898829 DOI: 10.3389/fsurg.2022.762027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 01/17/2022] [Indexed: 11/18/2022] Open
Abstract
Early diagnosis of non-muscle-invasive bladder cancer (NMIBC) is of paramount importance to prevent morbidity and mortality due to bladder cancer. Although white light imaging (WLI) cystoscopy has long been considered the gold standard in the diagnosis of bladder cancer, it can miss lesions in a substantial percentage of patients and is very likely to miss carcinoma in situ and dysplasia. Tumor margin detection by WLI can be inaccurate. Moreover, WLI could, sometimes, be inadequate in distinguishing inflammation and malignancy. To improve the diagnostic efficacy of cystoscopy, various optical image enhancement modalities have been studied. These image enhancement modalities have been classified as macroscopic, microscopic, or molecular. Photodynamic diagnosis (PDD), narrow band imaging (NBI), and Storz image 1 S enhancement (formerly known as SPIES) are macroscopic image enhancement modalities. A relevant search was performed for literature describing macroscopic image enhancement modalities like PDD, NBI, and image 1 S enhancement. The advantages, limitations, and usefulness of each of these in the diagnosis of bladder cancer were studied. Photodynamic diagnosis requires intravesical instillation of a photosensitizing agent and a special blue light cystoscope system. PDD has been shown to be more sensitive than WLI in the detection of bladder cancer. It is superior to WLI in the detection of flat lesions. Bladder tumor resection (TURBT) by PDD results in more complete resection and reduced recurrence rates. PDD-guided TURBT may have some role in reducing the risk of progression. Narrow band imaging provides increased contrast between normal and abnormal tissues based on neovascularization, thereby augmenting WLI. NBI requires a special light source. There is no need for intravesical contrast instillation. NBI is superior to WLI in the detection of bladder cancer. The addition of NBI to WLI improves the detection of flat lesions like carcinoma in situ. NBI is not useful in predicting invasive tumors or grades of tumors. NBI-directed TURBT reduces recurrence rates and recurrence free survival. But its efficacy in retarding progression is unproven. Image 1 S-enhancement utilizes software-based image enhancement modes without the need for a special light source or intravesical contrast instillation. This system provides high-quality images and identifies additional abnormal-looking areas. Another advantage of this system is simultaneous side-by-side visualization of WLI and enhanced image, providing WLI images as the control for comparison. As with PDD, S-enhancement produces a lower rate of a missed bladder cancer diagnosis. The system significantly improves the diagnosis of NMIBC. The sensitivity and negative predictive value of image 1 S enhancement increase with the increase in cancer grade. A negative test by S-enhancement effectively rules out NMIBC. All the image enhancement modalities have proven their utility in improving detection and short-term cancer control. But none of these modalities have proven their utility in delaying progression, or in long-term cancer control. Cancer progression and long-term control are governed by the biological nature of cancer cells. Early detection by optical enhancement may not be of utility in this regard. Well-designed studies are needed to establish the efficacy of these modalities in the evaluation of patients with bladder cancer. The last word, in this regard, is yet to be written.
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Affiliation(s)
- Prashant Motiram Mulawkar
- Department of Urology, Tirthankar Superspeciality Hospital, Akola, India
- Tutor in Urology, University of Edinburgh, Edinburgh, United Kingdom
- *Correspondence: Prashant Motiram Mulawkar
| | | | | | - Utsav Shah
- Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Rickaz Raheem
- Milton Keynes University Hospital, Eaglestone, United Kingdom
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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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Ahmadi H, Daneshmand S. Multiparametric cystoscopy: is the future here yet? Transl Androl Urol 2021; 10:1-6. [PMID: 33532288 PMCID: PMC7844506 DOI: 10.21037/tau-20-1012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Hamed Ahmadi
- Department of Urology, University of Southern California, Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - Siamak Daneshmand
- Department of Urology, University of Southern California, Norris Comprehensive Cancer Center, Los Angeles, CA, USA
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[Enhanced imaging in urological endoscopy]. Urologe A 2020; 60:8-18. [PMID: 33301070 DOI: 10.1007/s00120-020-01400-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/16/2020] [Indexed: 10/22/2022]
Abstract
White light cystoscopy and the concise documentation of pathological findings are standard diagnostic procedures in urology. Additional imaging modalities and technical innovations may support clinicians in the detection of bladder tumors. Modern endoscopy systems provide ultra-high-resolution imaging and the option of digital contrast enhancement. Photodynamic diagnostics and narrow band imaging are well-established in clinical routine and have shown significant benefits in the detection of bladder cancer. By means of multispectral imaging, different modalities can now be combined in real-time. Probe-based procedures such as optical coherence tomography (OCT) or Raman spectroscopy can further contribute to advanced imaging through an "optical biopsy" which may primarily improve diagnostics in the upper urinary tract. The aim of all techniques is to optimize the detection rate in order to achieve a more accurate diagnosis, resection and lower recurrence rates. Current research projects aim to digitalize the documentation of endoscopy and also make it more patient- and user-friendly. In the future, the use of image processing and artificial intelligence may automatically support the surgeon during endoscopy.
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Meessen S, Rother J, Zheng X, Eckstein M, Kriegmair MC, Hernandez D, Grychtol B, Deliolanis NC, Bolenz C, Günes C. Establishment of Real-Time Multispectral Imaging for the Detection of Bladder Cancer Using a Preclinical in Vivo Model. Bladder Cancer 2020. [DOI: 10.3233/blc-200314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND: Emerging imaging technologies such as real-time multispectral imaging (rMSI) hold great potential for simultaneous visualization of multiple target structures using fluorophores on various tumours including bladder cancer (BC). These technologies, however, require a multi-step preclinical evaluation process, including mouse models. OBJECTIVE: To demonstrate the suitability of the new rMSI technology for the detection of premalignant lesions and malignant BC in a preclinical mouse model using contrast agents. METHODS: Tumours were induced by N-butyl-N-(4-hydroxybutyl)-nitrosamine (BBN), which is known to induce BC in rodent models. In total, 30 mice (C57BL/6) were fed with 0.1% BBN ad libitum in drinking water for up to 5 months. Bladders were excised at 3 (n = 6) and 5 months (n = 24) of treatment and incubated ex vivo with Hexaminolevulinat (HAL, Hexvix®), CD47-FITC, CD90.2-FITC or a combination of CD90.2-FITC/CD47-FITC and HAL. The bladders were analyzed by an endoscopic rMSI prototype system equipped with a spectral filter (Chroma), a 4 mm endoscope (Karl Storz) with 30° optic, a LED light source and a PC with a microcontroller board. RESULTS: 5-month treatment of mice with 0.1% BBN led to the formation of squamous carcinoma (46%, n = 11) while urothelial carcinoma was observed only in one mouse (4%, n = 1). Carcinoma in situ (CIS) was detectable in twelve out of twenty-four mice (50%, n = 12) treated for 5 month and in three out of six mice (50%, n = 3) treated for 3 months.The metabolite of HAL, protoporphyrin IX (PpIX), could be reliably and specifically detected in all of mouse bladder tumours and CIS. However, detection of the CD90.2 surface marker was less reliable, potentially due to species- or tumour-subtype specificity. CONCLUSIONS: This model offers the potential for preclinical imaging studies with combined fluorescence targets, e.g. HAL, in combination with BC-specific antibodies.
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Affiliation(s)
| | - Jan Rother
- Medical Faculty Mannheim – Heidelberg University, Mannheim, Germany
| | - Xi Zheng
- Department of Urology, Ulm University, Ulm, Germany
| | - Markus Eckstein
- Department of Pathology, University Hospital Erlangen, Erlangen, Germany
| | | | - David Hernandez
- Medical Faculty Mannheim – Heidelberg University, Mannheim, Germany
| | - Bartłomiej Grychtol
- Medical Faculty Mannheim – Heidelberg University, Mannheim, Germany
- Fraunhofer IPA, Project Group for Automation in Medicine and Biotechnology, Mannheim, Germany
| | - Nikolaos C. Deliolanis
- Medical Faculty Mannheim – Heidelberg University, Mannheim, Germany
- Fraunhofer IPA, Project Group for Automation in Medicine and Biotechnology, Mannheim, Germany
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Evaluation of autofluorescence and photodynamic diagnosis in assessment of bladder lesions. Photodiagnosis Photodyn Ther 2020; 30:101719. [PMID: 32165336 DOI: 10.1016/j.pdpdt.2020.101719] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 02/16/2020] [Accepted: 03/06/2020] [Indexed: 12/24/2022]
Abstract
The ability to detect and diagnose bladder cancer early and precisely is crucial for effective treatment. The aim of this study is to assess the utility of optical biopsy performed with autofluorescence cystoscopy (AFC) using the Onco-LIFE system with numerical color values (NCVs) and by ALA/PDD. Histopathological examination of material obtained during TURBT and/or biopsy of the bladder was carried out in 251 patients. In the case of 35 patients, the selection of the specimen collected for histopathological examination was based using ALA/PDD. In the remaining 216 patients, tissue was collected based on the findings of AFC with NCV. Using AFC, the observed NCV ranged from 0 to 3.86; the highest mean NCV was observed in neoplastic muscle invasive lesions and was equal to 3.18. Furthermore, non-muscle invasive tumors were characterized by a mean NCV equal to 1.54. Tissue with inflammation, metaplasia, and healthy tissue demonstrated significantly lower mean NCV values. The presence of a muscle-invasive tumor increased the NCV by approximately 2.86 compared to healthy tissue. The rates of postoperative complications depend on the examining operator and are observed more often, as much as 65.7 % during ALA/PDD. AFC with NCV using the Onco-LIFE system, as well as ALA/PDD are helpful tools for early diagnosis of bladder precancerous and cancer lesions and for performing targeted biopsies. A significant correlation was found between lesion NCV index and the grade of dysplasia or tumor malignancy. Tissue with inflammation, metaplasia, and healthy tissue demonstrated significantly lower mean NCV values. AFE with NCV have a significantly higher sensitivity than specificity. Low rates of postoperative complications are correlated to the experience of the endoscopist and with AFE/NCV in comparison of ALA/PDD.
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Bolenz C, Rother J, Meessen S, Grychtol B, Majlesara A, Gharabaghi N, Günes C, Ritter M, Deliolanis N, Michel MS, Kriegmair MC. [The development of real-time multispectral imaging for the diagnostics of bladder cancer]. Urologe A 2019; 58:1435-1442. [PMID: 31531693 DOI: 10.1007/s00120-019-01037-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The performance of white light (WL) cystoscopy in the diagnostics of bladder cancer can be optimized by the use of modern imaging modalities, such as photodynamic diagnostics (PDD) and narrow band imaging (NBI). Real-time multispectral imaging (rMSI) enables simultaneous imaging of reflectance and fluorescence modalities in multiple spectral bands. We created a multiparametric cystoscopy image by digital overlapping of several modalities, e.g. WL, enhanced vascular contrast (EVC), raw fluorescence mode, protoporphyrin IX and autofluorescence (AF). The technical development and the subsequent clinical implementation of rMSI required a structured preclinical evaluation process, including both ex vivo and in vivo trials before the technology can be applied in patients. This review article presents the phases of testing, validation and the first clinical application of rMSI in urological endoscopy.
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Affiliation(s)
- C Bolenz
- Klinik für Urologie und Kinderurologie, Universitätsklinikum Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Deutschland.
| | - J Rother
- Medizinische Fakultät Mannheim, Universität Heidelberg, Mannheim, Deutschland
| | - S Meessen
- Klinik für Urologie und Kinderurologie, Universitätsklinikum Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Deutschland
| | - B Grychtol
- Medizinische Fakultät Mannheim, Universität Heidelberg, Mannheim, Deutschland.,Fraunhofer-Institut für Produktionstechnik und Automatisierung, Mannheim, Deutschland
| | - A Majlesara
- Klinik für Allgemein-, Viszeral- und Transplantationschirurgie, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
| | - N Gharabaghi
- Klinik für Allgemein-, Viszeral- und Transplantationschirurgie, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
| | - C Günes
- Klinik für Urologie und Kinderurologie, Universitätsklinikum Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Deutschland
| | - M Ritter
- Klinik für Urologie, Universitätsklinikum Bonn, Bonn, Deutschland
| | - N Deliolanis
- Medizinische Fakultät Mannheim, Universität Heidelberg, Mannheim, Deutschland.,Fraunhofer-Institut für Produktionstechnik und Automatisierung, Mannheim, Deutschland
| | - M S Michel
- Klinik für Urologie, Universitätsmedizin Mannheim, Medizinische Fakultät Mannheim, Universität Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Deutschland
| | - M C Kriegmair
- Klinik für Urologie, Universitätsmedizin Mannheim, Medizinische Fakultät Mannheim, Universität Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Deutschland.
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Kriegmair MC, Rother J, Grychtol B, Theuring M, Ritter M, Günes C, Michel MS, Deliolanis NC, Bolenz C. Multiparametric Cystoscopy for Detection of Bladder Cancer Using Real-time Multispectral Imaging. Eur Urol 2019; 77:251-259. [PMID: 31563499 DOI: 10.1016/j.eururo.2019.08.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 08/15/2019] [Indexed: 10/25/2022]
Abstract
BACKGROUND Various imaging modalities can be used in addition to white light (WL) to improve detection of bladder cancer (BC). OBJECTIVE To use real-time multispectral imaging (rMSI) during urethrocystoscopy to combine different imaging modalities to achieve multiparametric cystoscopy (MPC). DESIGN, SETTING, AND PARTICIPANTS The rMSI system consisted of a camera with a spectral filter, a multi-LED light source, a microcontroller, and a computer for display and data acquisition. MSI with this system was achieved via temporal multiplexing. SURGICAL PROCEDURE MPC was performed in ten patients with a diagnosed bladder tumor. MEASUREMENTS We gathered evidence to prove the feasibility of our approach. In addition, experienced urologists performed post-interventional evaluation of images of individual lesions. Images were independently rated in a semiquantitative manner for each modality. A statistical model was built for pairwise comparisons across modalities. RESULTS AND LIMITATIONS Overall, 31 lesions were detected using the rMSI set-up. Histopathology revealed malignancy in 27 lesions. All lesions could be visualized simultaneously in five modalities: WL, enhanced vascular contrast (EVC), blue light fluorescence, protoporphyrin IX fluorescence, and autofluorescence. EVC and photodynamic diagnosis images were merged in real time into one MP image. Using the recorded images, two observers identified all malignant lesions via MPC, whereas the single modalities did not arouse substantial suspicion for some lesions. The MP images of malignant lesions were rated significantly more suspicious than the images from single imaging modalities. CONCLUSIONS We demonstrated for the first time the application of rMSI in endourology and we established MPC for detection of BC. This approach allows existing imaging modalities to be combined, and it may significantly improve the detection of bladder cancer. PATIENT SUMMARY Real-time multispectral imaging was successfully used to combine different imaging aids for more comprehensive illustration of bladder tumors for surgeons. In the future, this technique may allow better detection of bladder tumors and more complete endoscopic resection in cases of cancer.
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Affiliation(s)
| | - Jan Rother
- Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Bartłomiej Grychtol
- Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany; Project Group for Automation in Medicine and Biotechnology, Fraunhofer IPA, Mannheim, Germany
| | - Martin Theuring
- Project Group for Automation in Medicine and Biotechnology, Fraunhofer IPA, Mannheim, Germany
| | - Manuel Ritter
- Department of Urology, University of Bonn, Bonn, Germany
| | - Cagatay Günes
- Department of Urology, University of Ulm, Ulm, Germany
| | - Maurice S Michel
- Department of Urology, University Medical Centre Mannheim, Mannheim, Germany
| | - Nikolaos C Deliolanis
- Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany; Project Group for Automation in Medicine and Biotechnology, Fraunhofer IPA, Mannheim, Germany
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Current concept of transurethral resection of bladder cancer: from re-transurethral resection of bladder cancer to en-bloc resection. Curr Opin Urol 2019; 28:591-597. [PMID: 30102624 DOI: 10.1097/mou.0000000000000542] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW Transurethral resection of bladder cancer (TURB) is the critical step in the management of nonmuscle invasive bladder cancer (NMIBC). This review presents new improvements in the strategy and technique of TURB as well as in technological developments used for tumour visualization and removal. RECENT FINDINGS The goal of TURB is to perform complete resection of NMIBC. Tumor visualization during procedure can be improved by enhanced optical technologies. Fluorescence-guided photodynamic diagnosis (PDD) and narrow-band imaging (NBI) used during TURB can improve tumour detection and potentially reduce recurrence rate, their influence on progression, however, remains controversial. TURB can be performed using monopolar or bipolar electrocautery without significant differences in results or safety. To overcome limitations of traditional TURB, the technique of en-bloc resection was introduced to improve the quality of tumour removal. In selected cases, an early re-resection (re-TURB) within 2-6 weeks after initial procedure is recommended. SUMMARY TURB is a fundamental step in diagnosis and treatment of NMIBC. Urologists should be aware of promising innovations including new imaging and surgical techniques and their potential benefits. Hopefully, new technologies and performance of TURB bring improved outcomes, which can alter the indication criteria for re-TURB.
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Bochenek K, Aebisher D, Międzybrodzka A, Cieślar G, Kawczyk-Krupka A. Methods for bladder cancer diagnosis - The role of autofluorescence and photodynamic diagnosis. Photodiagnosis Photodyn Ther 2019; 27:141-148. [PMID: 31152879 DOI: 10.1016/j.pdpdt.2019.05.036] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 05/26/2019] [Accepted: 05/28/2019] [Indexed: 11/19/2022]
Abstract
Bladder cancer is one of the most common Genito-urinary malignant tumors in humans. Improved diagnostic and therapeutic methods that aim to reduce rates of recurrence and progression of bladder cancer are needed. In current publications, one can find information on such methods as Raman spectroscopy, ultraviolet autofluorescence microscopy, confocal laser endoscopy, photoacoustic imaging, molecular imaging, multi-photon microscopy and many other new diagnostic techniques. These methods do not show significant adverse effects and are procedures well tolerated by patients as they use mostly physical phenomena that are neutral towards the human body. This review highlights the techniques of autofluorescence (AF) or laser induced fluorescence (LIF) and photodynamic diagnostics (PDD) which have been widely clinically studied for many years as a complement to cystoscopy. These methods can be performed during standard cystoscopy and they can be used in routine practice. This review shows that Autofluorescent and Photodynamic diagnostics are effective and have great potential in enhancing the diagnosis of bladder cancer. However, more research should be performed to help realize their full potential.
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Affiliation(s)
- Kamil Bochenek
- School of Medicine and Dentistry in Zabrze, Department of Internal Diseases, Angiology and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, 15 Batory St., 41-902 Bytom, Poland; Urovita- Silesian Center of Urology, 11 Strzelców Bytomskich St., 41-500 Chorzów, Poland
| | - David Aebisher
- Department of Photomedicine and Physical Chemistry, Faculty of Medicine, University of Rzeszów, Tadeusza Rejtana Avenue 16 C, 35-310 Rzeszów, Poland
| | - Anna Międzybrodzka
- School of Medicine and Dentistry in Zabrze, Department of Internal Diseases, Angiology and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, 15 Batory St., 41-902 Bytom, Poland; Non-Public Health Care Institution, Katowice Str. 3, 43-426 Dębowiec, Poland
| | - Grzegorz Cieślar
- School of Medicine and Dentistry in Zabrze, Department of Internal Diseases, Angiology and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, 15 Batory St., 41-902 Bytom, Poland
| | - Aleksandra Kawczyk-Krupka
- School of Medicine and Dentistry in Zabrze, Department of Internal Diseases, Angiology and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, 15 Batory St., 41-902 Bytom, Poland.
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Grasso G, Torregrossa F, Leone L. Maximizing the Extent of Resection in High-Grade Glioma. World Neurosurg 2019; 123:256-258. [DOI: 10.1016/j.wneu.2018.12.037] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 12/05/2018] [Indexed: 11/29/2022]
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Novel real-time optical imaging modalities for the detection of neoplastic lesions in urology: a systematic review. Surg Endosc 2018; 33:1349-1367. [PMID: 30421080 PMCID: PMC6484817 DOI: 10.1007/s00464-018-6578-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Accepted: 11/02/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Current optical diagnostic techniques for malignancies are limited in their diagnostic accuracy and lack the ability to further characterise disease, leading to the rapidly increasing development of novel imaging methods within urology. This systematic review critically appraises the literature for novel imagining modalities, in the detection and staging of urological cancer and assesses their effectiveness via their utility and accuracy. METHODS A systematic literature search utilising MEDLINE, EMBASE and Cochrane Library Database was conducted from 1970 to September 2018 by two independent reviewers. Studies were included if they assessed real-time imaging modalities not already approved in guidelines, in vivo and in humans. Outcome measures included diagnostic accuracy and utility parameters, including feasibility and cost. RESULTS Of 5475 articles identified from screening, a final 46 were included. Imaging modalities for bladder cancer included optical coherence tomography (OCT), confocal laser endomicroscopy, autofluorescence and spectroscopic techniques. OCT was the most widely investigated, with 12 studies demonstrating improvements in overall diagnostic accuracy (sensitivity 74.5-100% and specificity 60-98.5%). Upper urinary tract malignancy diagnosis was assessed using photodynamic diagnosis (PDD), narrow band imaging, optical coherence tomography and confocal laser endomicroscopy. Only PDD demonstrated consistent improvements in overall diagnostic accuracy in five trials (sensitivity 94-96% and specificity 96.6-100%). Limited evidence for optical coherence tomography in percutaneous renal biopsy was identified, with anecdotal evidence for any modality in penile cancer. CONCLUSIONS Evidence supporting the efficacy for identified novel imaging modalities remains limited at present. However, OCT for bladder cancer and PDD in upper tract malignancy demonstrate the best potential for improvement in overall diagnostic accuracy. OCT may additionally aid intraoperative decision making via real-time staging of disease. Both modalities require ongoing investigation through larger, well-conducted clinical trials to assess their diagnostic accuracy, use as an intraoperative staging aid and how to best utilise them within clinical practice.
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