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Püllen L, Costa PF, Darr C, Hess J, Kesch C, Rehme C, Wahl M, Yirga L, Reis H, Szarvas T, van Leeuwen FWB, Herrmann K, Hadaschik BA, Tschirdewahn S, Krafft U. Near-infrared fluorescence lymph node template region dissection plus backup lymphadenectomy in open radical cystectomy for bladder cancer using an innovative handheld device: A single center experience. J Surg Oncol 2024; 129:1325-1331. [PMID: 38583145 DOI: 10.1002/jso.27618] [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: 01/15/2024] [Accepted: 02/10/2024] [Indexed: 04/09/2024]
Abstract
BACKGROUND The extent of pelvic lymphadenectomy (PLND) as part of radical cystectomy (RC) for bladder cancer (BC) remains unclear. Sentinel-based and lymphangiographic approaches could lead to reduced morbidity without sacrificing oncologic safety. OBJECTIVE To evaluate the feasibility and diagnostic value of fluorescence-guided template sentinel region dissection (FTD) using a handheld near-infrared fluorescence (NIRF) camera in open radical cystectomy. DESIGN, SETTING, AND PARTICIPANTS After peritumoral cystoscopic injection of indocyanine green (ICG) 21 patients underwent open RC with FTD due to BC between June 2019 and June 2021. Intraoperatively, the FIS-00 Hamamatsu Photonics® NIRF camera was used to identify and resect fluorescent template sentinel regions (FTRs) followed by extended pelvic lymphadenectomy (ePLND) as oncological back-up. OUTCOME MEASUREMENT AND STATISTICAL ANALYSIS Descriptive analysis of positive and negative results per template region. RESULTS AND LIMITATIONS FTRs were identified in all 21 cases. Median time (range) from ICG injection to fluorescence detection was 75 (55-125) minutes. On average (SD), 33.4 (9.6) lymph nodes were dissected per patient. Considering template regions as the basis of analysis, 67 (38.3%) of 175 resected regions were NIRF-positive, with 13 (7.4%) regions harboring lymph node metastases. We found no metastatic lymph nodes in NIRF-negative template regions. Outside the standard template, two NIRF-positive benign nodes were identified. CONCLUSION The concept of NIRF-guided FTD proved for this group all lymph node metastases to be found in NIRF-positive template regions. Pending validation in a larger collective, resection of approximately 40% of standard regions may be sufficient and may result in less morbidity.
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Affiliation(s)
- Lukas Püllen
- Department of Urology, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Pedro F Costa
- German Cancer Consortium (DKTK), Heidelberg, Germany
- Department of Nuclear Medicine, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
| | - Christopher Darr
- Department of Urology, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Jochen Hess
- Department of Urology, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Claudia Kesch
- Department of Urology, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Christian Rehme
- Department of Urology, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Milan Wahl
- Department of Urology, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Leubet Yirga
- Department of Urology, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Henning Reis
- Dr. Senckenberg Institute of Pathology, Goethe University Frankfurt, University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Tibor Szarvas
- Department of Urology, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
- Dr. Senckenberg Institute of Pathology, Goethe University Frankfurt, University Hospital Frankfurt, Frankfurt am Main, Germany
- Department of Urology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Fijs W B van Leeuwen
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Centre, Leiden University, Leiden, Netherlands
| | - Ken Herrmann
- German Cancer Consortium (DKTK), Heidelberg, Germany
- Department of Nuclear Medicine, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
| | - Boris A Hadaschik
- Department of Urology, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Stephan Tschirdewahn
- Department of Urology, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Ulrich Krafft
- Department of Urology, West German Cancer Center, University Duisburg Essen, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
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Licari LC, Bologna E, Proietti F, Flammia RS, Bove AM, D'annunzio S, Tuderti G, Leonardo C. Exploring the Applications of Indocyanine Green in Robot-Assisted Urological Surgery: A Comprehensive Review of Fluorescence-Guided Techniques. SENSORS (BASEL, SWITZERLAND) 2023; 23:5497. [PMID: 37420664 DOI: 10.3390/s23125497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/07/2023] [Accepted: 06/09/2023] [Indexed: 07/09/2023]
Abstract
This comprehensive review aims to explore the applications of indocyanine green (ICG) in robot-assisted urological surgery through a detailed examination of fluorescence-guided techniques. An extensive literature search was conducted in PubMed/MEDLINE, EMBASE and Scopus, using keywords such as "indocyanine green," "ICG", "NIRF", "Near Infrared Fluorescence", "robot-assisted", and "urology". Additional suitable articles were collected by manually cross-referencing the bibliography of previously selected papers. The integration of the Firefly® technology in the Da Vinci® robotic system has opened new avenues for the advancement and exploration of different urological procedures. ICG is a fluorophore widely used in near-infrared fluorescence-guided techniques. The synergistic combination of intraoperative support, safety profiles and widespread availability comprises an additional asset that empowers ICG-guided robotic surgery. This overview of the current state of the art illustrates the potential advantages and broad applications of combining ICG-fluorescence guidance with robotic-assisted urological surgery.
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Affiliation(s)
- Leslie Claire Licari
- Urology Unit, Department of Maternal-Child and Urological Sciences, "Sapienza" University of Rome, Policlinico Umberto I Hospital, Viale del Policlinico 155, 00161 Rome, Italy
| | - Eugenio Bologna
- Urology Unit, Department of Maternal-Child and Urological Sciences, "Sapienza" University of Rome, Policlinico Umberto I Hospital, Viale del Policlinico 155, 00161 Rome, Italy
| | - Flavia Proietti
- Department of Urology, IRCCS "Regina Elena" National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
| | - Rocco Simone Flammia
- Urology Unit, Department of Maternal-Child and Urological Sciences, "Sapienza" University of Rome, Policlinico Umberto I Hospital, Viale del Policlinico 155, 00161 Rome, Italy
| | - Alfredo Maria Bove
- Department of Urology, IRCCS "Regina Elena" National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
| | - Simone D'annunzio
- Department of Urology, IRCCS "Regina Elena" National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
| | - Gabriele Tuderti
- Department of Urology, IRCCS "Regina Elena" National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
| | - Costantino Leonardo
- Department of Urology, IRCCS "Regina Elena" National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
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Małkiewicz B, Kiełb P, Kobylański M, Karwacki J, Poterek A, Krajewski W, Zdrojowy R, Szydełko T. Sentinel Lymph Node Techniques in Urologic Oncology: Current Knowledge and Application. Cancers (Basel) 2023; 15:cancers15092495. [PMID: 37173960 PMCID: PMC10177100 DOI: 10.3390/cancers15092495] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 04/23/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023] Open
Abstract
Lymph node (LN) metastases have a significant negative impact on the prognosis of urological malignancies. Unfortunately, current imaging modalities are insufficient when it comes to detecting micrometastases; thus, surgical LN removal is commonly used. However, there is still no established ideal lymph node dissection (LND) template, leading to unnecessary invasive staging and the possibility of missing LN metastases located outside the standard template. To address this issue, the sentinel lymph node (SLN) concept has been proposed. This technique involves identifying and removing the first group of draining LNs, which can accurately stage cancer. While successful in breast cancer and melanoma, the SLN technique in urologic oncology is still considered experimental due to high false-negative rates and lack of data in prostate, bladder, and kidney cancer. Nevertheless, the development of new tracers, imaging modalities, and surgical techniques may improve the potential of the SLN procedures in urological oncology. In this review, we aim to discuss the current knowledge and future contributions of the SLN procedure in the management of urological malignancies.
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Affiliation(s)
- Bartosz Małkiewicz
- University Center of Excellence in Urology, Department of Minimally Invasive and Robotic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Paweł Kiełb
- University Center of Excellence in Urology, Department of Minimally Invasive and Robotic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Maximilian Kobylański
- University Center of Excellence in Urology, Department of Minimally Invasive and Robotic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Jakub Karwacki
- University Center of Excellence in Urology, Department of Minimally Invasive and Robotic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Adrian Poterek
- University Center of Excellence in Urology, Department of Minimally Invasive and Robotic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Wojciech Krajewski
- University Center of Excellence in Urology, Department of Minimally Invasive and Robotic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Romuald Zdrojowy
- University Center of Excellence in Urology, Department of Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Tomasz Szydełko
- University Center of Excellence in Urology, Department of Minimally Invasive and Robotic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland
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Małkiewicz B, Jędrzejuk D, Gurwin A, Wilk K, Knecht-Gurwin K, Kiełb P, Krajewski W, Bolanowski M, Hałoń A, Szydełko T. Diagnostic Value of the Sentinel Lymph Node Technique in Patients with Muscle-Invasive Bladder Cancer. J Clin Med 2023; 12:jcm12093092. [PMID: 37176533 PMCID: PMC10179622 DOI: 10.3390/jcm12093092] [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: 02/13/2023] [Revised: 04/17/2023] [Accepted: 04/23/2023] [Indexed: 05/15/2023] Open
Abstract
BACKGROUND The optimal limits of the bilateral pelvic lymph node dissection (PLND) template in bladder cancer treatment remain controversial. This study aimed to investigate whether radio-guided sentinel node (SLN) detection is a reliable technique for the perioperative localisation of potential lymphatic metastasis during cystectomy for muscle-invasive bladder cancer (MIBC). MATERIALS AND METHODS We studied 54 patients with pT2-pT4 MIBC who underwent cystectomy with extended PLND (ePLND) augmented by the SLN technique. The identification of SLN was performed by preoperative SPECT/CT hybrid lymphoscintigraphy using peritumoral injection of nanocolloid-Tc-99m, followed by intraoperative navigation with a handheld γ-probe. All nodal specimens were collected separately and then fixed in formalin, stained with haematoxylin and eosin, and examined by an experienced uropathologist. RESULTS A total of 1414 LNs were resected and examined for the presence of metastases. The mean number of harvested LNs was 26 (range: 11-50) per patient. In 51 of 54 patients, 192 SLNs were resected. In addition, 20/192 (10.4%) SLNs were located outside of the ePLND area. Overall, 72 metastatic LNs (LN+) were found in 22 of 54 patients (40.7%) and in 24/192 SLNs (12.5%). The SLN technique detected LN+ in 14 of 22 (64%) patients. The SLNs were the only sites of metastasis (SLN+ = LN+) in 6 of 22 (27.3%) LN+ patients, including two cases with foci located in the pararectal region. The diagnostic values for the sensitivity, specificity, positive predictive value, and false-negative rate for the SLN technique were 66.66%, 4.16%, 28.57%, and 33.33%, respectively. Extended lymphadenectomy and its combination with the SLN technique enabled the correct assessment in 96.3 and 100% of patients, respectively. CONCLUSIONS The combination of ePLND and SLN provides a better pN assessment compared to ePLND alone. Although the SLN technique has restrictions that limit its diagnostic value, its use as an addition to lymphadenectomy allows for the visualisation of nonstandard lymph drainage pathways that may be potential metastatic routes.
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Affiliation(s)
- Bartosz Małkiewicz
- Department of Minimally Invasive and Robotic Urology, University Center of Excellence in Urology, Wroclaw Medical University, 50-556 Wrocław, Poland
| | - Diana Jędrzejuk
- Department of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, 50-367 Wrocław, Poland
| | - Adam Gurwin
- Department of Minimally Invasive and Robotic Urology, University Center of Excellence in Urology, Wroclaw Medical University, 50-556 Wrocław, Poland
| | - Karol Wilk
- Department of Minimally Invasive and Robotic Urology, University Center of Excellence in Urology, Wroclaw Medical University, 50-556 Wrocław, Poland
| | - Klaudia Knecht-Gurwin
- Department of Dermatology, Venereology and Allergology, Wroclaw Medical University, 50-368 Wroclaw, Poland
| | - Paweł Kiełb
- Department of Minimally Invasive and Robotic Urology, University Center of Excellence in Urology, Wroclaw Medical University, 50-556 Wrocław, Poland
| | - Wojciech Krajewski
- Department of Minimally Invasive and Robotic Urology, University Center of Excellence in Urology, Wroclaw Medical University, 50-556 Wrocław, Poland
| | - Marek Bolanowski
- Department of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, 50-367 Wrocław, Poland
| | - Agnieszka Hałoń
- Department of Clinical and Experimental Pathology, Wrocław Medical University, 50-556 Wrocław, Poland
| | - Tomasz Szydełko
- Department of Minimally Invasive and Robotic Urology, University Center of Excellence in Urology, Wroclaw Medical University, 50-556 Wrocław, Poland
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Cassinotti E, Al-Taher M, Antoniou SA, Arezzo A, Baldari L, Boni L, Bonino MA, Bouvy ND, Brodie R, Carus T, Chand M, Diana M, Eussen MMM, Francis N, Guida A, Gontero P, Haney CM, Jansen M, Mintz Y, Morales-Conde S, Muller-Stich BP, Nakajima K, Nickel F, Oderda M, Parise P, Rosati R, Schijven MP, Silecchia G, Soares AS, Urakawa S, Vettoretto N. European Association for Endoscopic Surgery (EAES) consensus on Indocyanine Green (ICG) fluorescence-guided surgery. Surg Endosc 2023; 37:1629-1648. [PMID: 36781468 PMCID: PMC10017637 DOI: 10.1007/s00464-023-09928-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 01/28/2023] [Indexed: 02/15/2023]
Abstract
BACKGROUND In recent years, the use of Indocyanine Green (ICG) fluorescence-guided surgery during open and laparoscopic procedures has exponentially expanded across various clinical settings. The European Association of Endoscopic Surgery (EAES) initiated a consensus development conference on this topic with the aim of creating evidence-based statements and recommendations for the surgical community. METHODS An expert panel of surgeons has been selected and invited to participate to this project. Systematic reviews of the PubMed, Embase and Cochrane libraries were performed to identify evidence on potential benefits of ICG fluorescence-guided surgery on clinical practice and patient outcomes. Statements and recommendations were prepared and unanimously agreed by the panel; they were then submitted to all EAES members through a two-rounds online survey and results presented at the EAES annual congress, Barcelona, November 2021. RESULTS A total of 18,273 abstracts were screened with 117 articles included. 22 statements and 16 recommendations were generated and approved. In some areas, such as the use of ICG fluorescence-guided surgery during laparoscopic cholecystectomy, the perfusion assessment in colorectal surgery and the search for the sentinel lymph nodes in gynaecological malignancies, the large number of evidences in literature has allowed us to strongly recommend the use of ICG for a better anatomical definition and a reduction in post-operative complications. CONCLUSIONS Overall, from the systematic literature review performed by the experts panel and the survey extended to all EAES members, ICG fluorescence-guided surgery could be considered a safe and effective technology. Future robust clinical research is required to specifically validate multiple organ-specific applications and the potential benefits of this technique on clinical outcomes.
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Affiliation(s)
- E Cassinotti
- Department of General and Minimally Invasive Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico di Milano, University of Milan, Via Francesco Sforza 35, 20121, Milan, Italy.
| | - M Al-Taher
- Research Institute Against Digestive Cancer (IRCAD), Strasbourg, France
| | - S A Antoniou
- Department of Surgery, Papageorgiou General Hospital, Thessaloniki, Greece
| | - A Arezzo
- Department of Surgical Sciences, University of Torino, Turin, Italy
| | - L Baldari
- Department of General and Minimally Invasive Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico di Milano, University of Milan, Via Francesco Sforza 35, 20121, Milan, Italy
| | - L Boni
- Department of General and Minimally Invasive Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico di Milano, University of Milan, Via Francesco Sforza 35, 20121, Milan, Italy
| | - M A Bonino
- Department of Surgery, Geneva University Hospitals, Geneva, Switzerland
| | - N D Bouvy
- Department of Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
| | - R Brodie
- Department of General Surgery, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - T Carus
- Niels-Stensen-Kliniken, Elisabeth-Hospital, Thuine, Germany
| | - M Chand
- Wellcome/EPSRC Centre for Interventional and Surgical Sciences (WEISS), University College London, London, UK
- Division of Surgery and Interventional Sciences, University College London, London, UK
| | - M Diana
- IHU Strasbourg, Institute of Image-Guided Surgery and IRCAD, Research Institute Against Cancer of the Digestive System, Strasbourg, France
| | - M M M Eussen
- Department of Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
| | - N Francis
- Department of General Surgery, Yeovil District Hospital NHS Foundation Trust, Yeovil, UK
| | - A Guida
- Department of Medico-Surgical Sciences and Translation Medicine, Faculty of Medicine and Psychology, Sapienza University of Rome, Rome, Italy
| | - P Gontero
- Division of Urology, Department of Surgical Science, AOU Città della Salute e della Scienza di Torino, University of Turin, Turin, Italy
| | - C M Haney
- Department of General, Visceral, and Transplantation Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - M Jansen
- Department of Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Y Mintz
- Department of General Surgery, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
- Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - S Morales-Conde
- Unit of Innovation in Minimally Invasive Surgery, Department of General Surgery, University Hospital Virgen del Rocío, University of Sevilla, Seville, Spain
| | - B P Muller-Stich
- Department of General, Visceral, and Transplantation Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - K Nakajima
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - F Nickel
- Department of General, Visceral, and Transplantation Surgery, Heidelberg University Hospital, Heidelberg, Germany
| | - M Oderda
- Division of Urology, Department of Surgical Science, AOU Città della Salute e della Scienza di Torino, University of Turin, Turin, Italy
| | - P Parise
- U.O.C. Chirurgia Generale, Policlinico di Abano Terme, Abano Terme, PD, Italy
| | - R Rosati
- Department of Gastrointestinal Surgery, San Raffaele Hospital, Milan, Italy
| | - M P Schijven
- Department of Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam, North Holland, The Netherlands
- Amsterdam Gastroenterology and Metabolism, Amsterdam UMC, Amsterdam, North Holland, The Netherlands
- Amsterdam Public Health, Digital Health, Amsterdam UMC, Amsterdam, North Holland, The Netherlands
| | - G Silecchia
- Department of Medico-Surgical Sciences and Translation Medicine, Faculty of Medicine and Psychology, Sapienza University of Rome, Rome, Italy
| | - A S Soares
- Wellcome/EPSRC Centre for Interventional and Surgical Sciences (WEISS), University College London, London, UK
- Division of Surgery and Interventional Sciences, University College London, London, UK
| | - S Urakawa
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - N Vettoretto
- U.O.C. Chirurgia Generale, ASST Spedali Civili di Brescia P.O. Montichiari, Ospedale di Montichiari, Montichiari, Italy
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Pavlov VN, Urmantsev MF, Bakeev MR. Opportunities of ICG-fluorescent imaging of lymph nodes during radical cystectomy in patients with bladder cancer: A review. JOURNAL OF MODERN ONCOLOGY 2023. [DOI: 10.26442/18151434.2022.4.201874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Today, the "golden standard" for the treatment of aggressive forms of bladder cancer is radical cystectomy. An important stage is the pelvic lymphadenectomy. This procedure is crucial for staging the tumor process, determining the subsequent treatment tactics and improving the results of surgery. Currently, the concept of a signaling lymph node (LN) is actively developing, which allows reducing the necessary level of dissection of the pelvic LN. Reducing the number of resected LN increases the level of surgical safety of the patient. The leading method of intraoperative visualization of signal LN is the fluorescence of indocyanine green in the near infrared range of the spectrum. The prospects of this diagnostic method for radical cystectomy in patients with bladder cancer determine the vector of future scientific research in this area.
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Omorphos NP, Ghose A, Hayes JD, Kandala A, Dasgupta P, Sharma A, Vasdev N. The increasing indications of FDG-PET/CT in the staging and management of Invasive Bladder Cancer. Urol Oncol 2022; 40:434-441. [DOI: 10.1016/j.urolonc.2022.05.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 03/20/2022] [Accepted: 05/14/2022] [Indexed: 11/24/2022]
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Extent of lymph node dissection and impact on survival in radical cystectomy for advanced bladder cancer. Curr Opin Urol 2022; 32:607-613. [PMID: 36101521 DOI: 10.1097/mou.0000000000001035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW In patients with muscle invasive bladder cancer (MIBC) or unresectable non-MIBC, radical cystectomy is routinely combined with bilateral pelvic lymph node dissection (LND) owing to the oncological benefits found in recurrence-free survival (RFS), overall survival (OS) and cancer-specific survival (CSS) compared with radical cystectomy alone. However, the optimal anatomic extent of LND is still unclear. RECENT FINDINGS Retrospective studies were consistent in reporting oncological benefits of extended LND over nonextended LND. A recent RCT (the LEA trial) failed to demonstrate any benefit in terms of RFS, CSS and OS of super-extended LND over standard LND. Several confounding factors hindered the interpretation of the results, leaving the question of the right extent for LND still open. Results of a similar study, the SWOG S1011 are, therefore, highly anticipated. This study differed from the LEA study in several aspects but might also turn out to be a negative study. SUMMARY There are still no firm data on the oncological benefit brought by more extended LND in patients with MIBC. Survival benefits seem limited, at least in the general population. Other factors could influence the impact of LND on survival, including the administration of adjuvant and neoadjuvant chemotherapies.
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Rietbergen DD, van Gennep EJ, KleinJan GH, Donswijk M, Valdés Olmos RA, van Rhijn BW, van der Poel HG, van Leeuwen FW. Evaluation of the Hybrid Tracer Indocyanine Green- 99m Tc-Nanocolloid for Sentinel Node Biopsy in Bladder Cancer-A Prospective Pilot Study. Clin Nucl Med 2022; 47:774-780. [PMID: 35713891 PMCID: PMC9351699 DOI: 10.1097/rlu.0000000000004301] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 05/05/2022] [Accepted: 05/05/2022] [Indexed: 11/26/2022]
Abstract
RATIONALE In muscle-invasive bladder cancer (MIBC), lymph node invasion has proven to be an independent predictor of disease recurrence and cancer-specific survival. We evaluated the feasibility of targeting the sentinel node (SN) for biopsy in MIBC patients using the hybrid tracer indocyanine green (ICG)- 99m Tc-nanocolloid for simultaneous radioguidance and fluorescence guidance. METHODS Twenty histologically confirmed cN0M0 MIBC patients (mean age, 63.3 years; range, 30-82 years), scheduled for radical cystectomy with SN biopsy and extended pelvic lymph node dissection (ePLND), were prospectively included. Twelve patients were operated on following neoadjuvant chemotherapy. The patients received lymphoscintigraphy as well as SPECT/CT after 4 transurethral injections of ICG- 99m Tc-nanocolloid (mean, 208 MBq; range, 172-229 MBq) around the tumor/scar in the detrusor muscle of the bladder on the day before radical cystectomy. Sentinel node resection was performed under radioguidance and fluorescence guidance. RESULTS Nineteen patients could be analyzed. On preoperative imaging, SNs could be identified in 10 patients (53%; mean, 1.6 SN/patient), which revealed drainage pathways outside the ePLND in 20% of the patients. Interesting to note is that 2 patients (10%) with preoperative nonvisualization displayed fluorescent and radioactive SNs during surgery. Location of the primary tumor near the left lateral side of the bladder seemed to be a factor for nonvisualization. Nodal harvesting with ePLND varied among patients (mean, 23.3). Histopathology confirmed tumor-positive nodes in 4 (21%) of all patients. In the 2 patients where an SN could be identified, the ePLND specimens were tumor-negative. All patients with tumor-positive nodes had advanced disease (stage III). CONCLUSION Sentinel node biopsy in bladder cancer using the hybrid tracer ICG- 99m Tc-nanocolloid is feasible, and preoperative imaging is predictive for the ability to perform SN biopsy in 83% of the patients who displayed an SN. In patients with a successful preoperative SN mapping using lymphoscintigraphy and SPECT/CT, the intraoperative SN guidance and detection were effective, even outside the ePLND area. As such, this study underscores the critical role that preoperative imaging plays in challenging image-guided surgery applications.
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Affiliation(s)
- Daphne D.D. Rietbergen
- From the Interventional Molecular Imaging Laboratory, Department of Radiology
- Nuclear Medicine Section, Department of Radiology
| | | | | | | | - Renato A. Valdés Olmos
- From the Interventional Molecular Imaging Laboratory, Department of Radiology
- Nuclear Medicine Section, Department of Radiology
| | | | | | - Fijs W.B. van Leeuwen
- From the Interventional Molecular Imaging Laboratory, Department of Radiology
- Department of Urology, Leiden University Medical Center, Leiden
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Methods of Sentinel Lymph Node Detection and Management in Urinary Bladder Cancer—A Narrative Review. Curr Oncol 2022; 29:1335-1348. [PMID: 35323314 PMCID: PMC8947662 DOI: 10.3390/curroncol29030114] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 02/17/2022] [Accepted: 02/21/2022] [Indexed: 11/17/2022] Open
Abstract
Introduction: Detection of lymph node status in bladder cancer significantly impacts clinical decisions regarding its management. There is a wide range of detection modalities for this task, including lymphoscintigraphy, computed tomography, magnetic resonance imaging, single-photon emission computed tomography, positron emission tomography, and fluoroscopy. We aimed to study the pre- and intraoperative detection modalities of sentinel lymph nodes in urinary bladder cancer. Method: This narrative review was performed by searching the PubMed and EMBASE libraries using the following search terms: (“Transitional cell carcinoma of the bladder” OR “urothelial cancer” OR “urinary bladder cancer” OR “bladder cancer”) AND ((“sentinel lymph node”) OR (“lymphatic mapping”) OR (“lymphoscintigraphy”) OR (“lymphangiography”) OR (“lymph node metastases”)). Studies analysing the effectiveness and outcomes of sentinel lymph node detection in bladder cancer were included, while non-English language, duplicates, and non-article studies were excluded. After analysing the libraries and a further manual search of bibliographies, 31 studies were included in this paper. We followed the RAMESES publication standard for narrative reviews to produce this paper. Results: Of the 31 studies included, 7 studies included multiple detection methods; 5 studies included lymphoscintigraphy; 5 studies included computed tomography and/or single-photon emission computed tomography; 5 studies included fluoroscopy; 4 studies included magnetic resonance imaging; and 5 studies included positron emission tomography. Discussion: Anatomical, radioactive, and functional detection modalities have been studied independently and in combination. The consensus is that preoperative detection with imaging helps guide surgical management and intraoperative detection methods help capture any lymph nodes that may have been missed. Each of these types of detection represent their own set of benefits and drawbacks, but there is currently limited evidence to support any change in overall practice to replace conventional staging.
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Małkiewicz B, Kiełb P, Gurwin A, Knecht K, Wilk K, Dobruch J, Zdrojowy R. The Usefulness of Lymphadenectomy in Bladder Cancer-Current Status. ACTA ACUST UNITED AC 2021; 57:medicina57050415. [PMID: 33922894 PMCID: PMC8145304 DOI: 10.3390/medicina57050415] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 04/19/2021] [Accepted: 04/23/2021] [Indexed: 12/13/2022]
Abstract
The purpose of this review is to present the current status of lymph node dissection (LND) during radical cystectomy in patients with bladder cancer (BCa). Despite the growing body of evidence of LND utility at the time of radical cystectomy (RC) in high-risk nonmuscle-invasive and muscle-invasive BCa (MIBC), therapeutic and prognostic value and optimal extent of LND remain unsolved issues. Recently published results of the first prospective, a randomized trial assessing the therapeutic benefit of extended versus limited LND during RC, failed to demonstrate survival improvement with the extended template. Although LND is the most accurate staging procedure, the direct therapeutic effect is still not evident from the current literature, limiting the possibility of establishing clear recommendations. This indicates the need for robust and adequately powered clinical trials.
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Affiliation(s)
- Bartosz Małkiewicz
- Department of Urology and Oncologic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland; (P.K.); (A.G.); (K.K.); (K.W.); (R.Z.)
- Correspondence: ; Tel.: +48-506-158-136
| | - Paweł Kiełb
- Department of Urology and Oncologic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland; (P.K.); (A.G.); (K.K.); (K.W.); (R.Z.)
| | - Adam Gurwin
- Department of Urology and Oncologic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland; (P.K.); (A.G.); (K.K.); (K.W.); (R.Z.)
| | - Klaudia Knecht
- Department of Urology and Oncologic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland; (P.K.); (A.G.); (K.K.); (K.W.); (R.Z.)
| | - Karol Wilk
- Department of Urology and Oncologic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland; (P.K.); (A.G.); (K.K.); (K.W.); (R.Z.)
| | - Jakub Dobruch
- First Department of Urology, Centre of Postgraduate Medical Education, 01-813 Warsaw, Poland;
| | - Romuald Zdrojowy
- Department of Urology and Oncologic Urology, Wroclaw Medical University, 50-556 Wroclaw, Poland; (P.K.); (A.G.); (K.K.); (K.W.); (R.Z.)
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12
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Clinton TN, Huang C, Goh AC. Is there an oncological benefit to extended lymphadenectomy for muscle-invasive bladder cancer? Transl Androl Urol 2021; 9:2956-2964. [PMID: 33457268 PMCID: PMC7807354 DOI: 10.21037/tau-20-406] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
The full optimal extent of a pelvic lymph node dissection (PLND) at time of radical cystectomy (RC) has not yet been determined. The diagnostic role of LND is clear and is extremely important for identifying those who may benefit from adjuvant therapy. While retrospective analyses have demonstrated improved survival when the number of lymph nodes is increased and extended LNDs (eLNDs) are performed, these results have yet to be borne out in prospective randomized phase III trials. The recently published LEA AUO AB 25/02 trial is a promising attempt to determine the efficacy of eLND, but unfortunately falls short because of its limited design and therefore, did not demonstrate an improvement in recurrence-free survival (RFS). In an era of increased utilization of neoadjuvant chemotherapy (NAC) providing survival benefit, the ability to demonstrate improved survival with eLND is even more challenging. Currently, we are awaiting the results of SWOG S1011, expectations of achieving a positive trial with improved RFS remains unlikely.
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Affiliation(s)
- Timothy N Clinton
- Urology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Chun Huang
- Urology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Alvin C Goh
- Urology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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13
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Packiam VT, Tsivian M, Boorjian SA. The evolving role of lymphadenectomy for bladder cancer: why, when, and how. Transl Androl Urol 2020; 9:3082-3093. [PMID: 33457281 PMCID: PMC7807370 DOI: 10.21037/tau.2019.06.01] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Radical cystectomy (RC) represents a standard treatment for non-metastatic muscle-invasive and select high-risk non-muscle invasive bladder cancer. Lymphadenectomy performed at time of RC identifies nodal metastases in up to 25% of patients despite normal imaging. There has been an increasing utilization of pelvic lymph node dissection (PLND) with RC since 1950, and in fact lymph node dissection is now recommended in contemporary National Comprehensive Cancer Network (NCCN) guidelines. Benefits of removing of nodal disease include improved staging, guidance for adjuvant treatment, and potentially improved oncologic outcomes. Advantages of dissection have been suggested among both node-negative and node-positive patients. Numerous studies have attempted to define the optimal dissection characteristics of lymphadenectomy with regard to nodal yield and anatomic boundaries of dissection. The ideal extent of lymphadenectomy remains uncertain due to the retrospective and non-randomized nature of the majority of existing reports, which are thereby limited by significant confounding and selection bias. Two randomized controlled trials have investigated this issue, one of which LEA AUO AB 25/02 recently reported its outcomes, demonstrating no significant improvement in 5-year outcomes with an extended dissection. Meanwhile, the Southwest Oncology Group 1011 trial has completed enrollment and data are maturing. While current data preclude definitive recommendations, herein we review the why, when, and how to perform a PLND for bladder cancer.
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14
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Zarifmahmoudi L, Ghorbani H, Sadeghi R, Sadri K, Tavakkoli M, Keshvari M, Salehi M. Sentinel lymph node biopsy in muscle-invasive bladder cancer: single-center experience. Ann Nucl Med 2020; 34:718-724. [PMID: 32656648 DOI: 10.1007/s12149-020-01502-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 06/28/2020] [Indexed: 12/27/2022]
Abstract
OBJECTIVE In this study, the validity of sentinel node biopsy procedure as our index test was assessed and compared with bilateral pelvic lymphadenectomy for staging and detecting the regional lymph nodes metastasis in patients with muscle-invasive bladder cancer (MIBC). METHODS Consecutive series of cases with T1-T4 urothelial MIBC were included. Following the injection of radiotracer, sentinel nodes were sought using a handheld gamma probe and all hot nodes were harvested. Bilateral pelvic lymphadenectomy was done for all patients following sentinel node biopsy. The tumor specimen, sentinel nodes, and excised lymph nodes were evaluated histopathologically. Same as the other midline tumors, detection rate and false negative rates were calculated using patient basis and side basis methods. RESULTS By evaluating each patient as a unit of analysis, sentinel nodes were detected in 35 of 41 patients (85%), 13/16 (81%) of the neoadjuvant chemotherapy (NAC) and 22/25 (88%) of the no-neoadjuvant chemotherapy (No-NAC) participants. The false negative rate was 3/7 (42%): 1/3 (33%) for NAC, and 2/4 (50%) for No-NAC patients. By evaluating each hemipelvis as a unit of analysis, sentinel nodes were detected in 53 of 82 hemipelves (65%), 19/32 (66%) of the NAC, and 34/50 (68%) of the No-NAC hemipelves. No false-negative result was found by assessing each hemipelvis as a unit of analysis. CONCLUSIONS Sentinel node biopsy is a feasible method for lymph node staging in MIBC, including patients with a history of NAC. To optimize the sensitivity, the decision regarding the lymphadenectomy is best to be based on the pathological status of sentinel node harvested from each hemipelvis separately as the unilateral finding of a sentinel node, does not rule out the possibility of metastatic involvement of contralateral pelvic lymph nodes.
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Affiliation(s)
- Leili Zarifmahmoudi
- Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamidreza Ghorbani
- Department of Urology, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Ramin Sadeghi
- Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Kayvan Sadri
- Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahmoud Tavakkoli
- Department of Urology, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maliheh Keshvari
- Department of Urology, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maryam Salehi
- Department of Community Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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15
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van Manen L, Handgraaf HJM, Diana M, Dijkstra J, Ishizawa T, Vahrmeijer AL, Mieog JSD. A practical guide for the use of indocyanine green and methylene blue in fluorescence-guided abdominal surgery. J Surg Oncol 2018; 118:283-300. [PMID: 29938401 PMCID: PMC6175214 DOI: 10.1002/jso.25105] [Citation(s) in RCA: 186] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 04/21/2018] [Indexed: 12/14/2022]
Abstract
Near-infrared (NIR) fluorescence imaging is gaining clinical acceptance over the last years and has been used for detection of lymph nodes, several tumor types, vital structures and tissue perfusion. This review focuses on NIR fluorescence imaging with indocyanine green and methylene blue for different clinical applications in abdominal surgery with an emphasis on oncology, based on a systematic literature search. Furthermore, practical information on doses, injection times, and intraoperative use are provided.
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Affiliation(s)
- Labrinus van Manen
- Department of Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Michele Diana
- IHU-Strasbourg, Institute of Image-Guided Surgery, Strasbourg, France.,IRCAD, Research Institute against Cancer of the Digestive System, Strasbourg, France.,Department of General, Digestive and Endocrine Surgery, University Hospital of Strasbourg, Strasbourg, France
| | - Jouke Dijkstra
- Division of Image Processing, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Takeaki Ishizawa
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | | | - Jan Sven David Mieog
- Department of Surgery, Leiden University Medical Center, Leiden, The Netherlands
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Nowacki M, Peterson M, Kloskowski T, McCabe E, Guiral DC, Polom K, Pietkun K, Zegarska B, Pokrywczynska M, Drewa T, Roviello F, Medina EA, Habib SL, Zegarski W. Nanoparticle as a novel tool in hyperthermic intraperitoneal and pressurized intraperitoneal aerosol chemotheprapy to treat patients with peritoneal carcinomatosis. Oncotarget 2017; 8:78208-78224. [PMID: 29100461 PMCID: PMC5652850 DOI: 10.18632/oncotarget.20596] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 08/15/2017] [Indexed: 12/11/2022] Open
Abstract
The treatment of peritoneal surface malignances has changed considerably over the last thirty years. Unfortunately, the palliative is the only current treatment for peritoneal carcinomatosis (PC). Two primary intraperitoneal chemotherapeutic methods are used. The first is combination of cytoreductive surgery (CRS) and Hyperthermic IntraPEritoneal Chemotherapy (HIPEC), which has become the gold standard for many cases of PC. The second is Pressurized IntraPeritoneal Aerosol Chemotheprapy (PIPAC), which is promising direction to minimally invasive as safedrug delivery. These methods were improved through multicenter studies and clinical trials that yield important insights and solutions. Major method development has been made through nanomedicine, specifically nanoparticles. Here, we are presenting the latest advances of nanoparticles and their application to precision diagnostics and improved treatment strategies for PC. These advances will likely develop both HIPEC and PIPAC methods that used for in vitro and in vivo studies. Several benefits of using nanoparticles will be discussed including: 1) Nanoparticles as drug delivery systems; 2) Nanoparticles and Near Infrred (NIR) Irradiation; 3) use of nanoparticles in perioperative diagnostic and individualized treatment planning; 4) use of nanoparticles as anticancer dressing's, hydrogels and as active beeds for optimal reccurence prevention; and 5) finally the curent in vitro and in vivo studies and clinical trials of nanoparticles. The current review highlighted use of nanoparticles as novel tools in improving drug delivery to be effective for treatment patients with peritoneal carcinomatosis.
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Affiliation(s)
- Maciej Nowacki
- Chair of Department of Surgical Oncology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Oncology Centre of Franciszek Łukaszczyk Memorial Hospital, Bydgoszcz, Poland
| | - Margarita Peterson
- Department of Plastic and Reconstructive Surgery, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Tomasz Kloskowski
- Chair of Urology, Department of Regenerative Medicine, Ludwik Rydygier's Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Toruń, Poland
| | - Eleanor McCabe
- Department of Plastic and Reconstructive Surgery, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Delia Cortes Guiral
- Department of General Surgery (Peritoneal Surface Surgical Oncology), Fundación Jiménez Díaz Hospital, Madrid, Spain
| | - Karol Polom
- General Surgery and Surgical Oncology Department, University of Siena, Siena, Italy
- Department of Surgical Oncology, Medical University of Gdansk, Gdansk, Poland
| | - Katarzyna Pietkun
- Chair of Cosmetology and Aesthetic Dermatology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun. Bydgoszcz, Poland
| | - Barbara Zegarska
- Chair of Cosmetology and Aesthetic Dermatology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun. Bydgoszcz, Poland
| | - Marta Pokrywczynska
- Chair of Urology, Department of Regenerative Medicine, Ludwik Rydygier's Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Toruń, Poland
| | - Tomasz Drewa
- Chair of Urology, Department of Regenerative Medicine, Ludwik Rydygier's Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Toruń, Poland
| | - Franco Roviello
- Chair of Cosmetology and Aesthetic Dermatology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun. Bydgoszcz, Poland
| | - Edward A. Medina
- Department of Pathology, University of Texas Health, San Antonio, TX, USA
| | - Samy L. Habib
- Department of Cell Systems and Anatomy, University of Texas Health Geriatric Research Education, San Antonio, TX, USA
- South Texas Veterans Health Care System, San Antonio, TX, USA
| | - Wojciech Zegarski
- Chair of Department of Surgical Oncology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Oncology Centre of Franciszek Łukaszczyk Memorial Hospital, Bydgoszcz, Poland
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