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Michalik B, Engels S, Otterbach MC, Frerichs J, Suhrhoff PE, van Oosterom MN, Maurer MH, Wawroschek F, Winter A. A new bimodal approach for sentinel lymph node imaging in prostate cancer using a magnetic and fluorescent hybrid tracer. Eur J Nucl Med Mol Imaging 2024; 51:2922-2928. [PMID: 37999812 PMCID: PMC11300469 DOI: 10.1007/s00259-023-06522-8] [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: 10/05/2023] [Accepted: 11/13/2023] [Indexed: 11/25/2023]
Abstract
PURPOSE To obtain initial data on sentinel lymph node (SLN) visualisation by pre-operative magnetic resonance imaging (MRI) and intra-operative bimodal SLN identification using a new magnetic fluorescent hybrid tracer in prostate cancer (PCa) patients. METHODS Ten patients at > 5% risk for lymph node (LN) invasion were included. The day before surgery, a magnetic fluorescent hybrid tracer consisting of superparamagnetic iron oxide nanoparticles (SPION) and indocyanine green was transrectally injected into the prostate. Five hours after injection, transversal pelvic MRI scans were recorded and T2*-weighed images were screened for pelvic LNs with SPION uptake. Intra-operatively, magnetically active and/or fluorescent SLNs were detected by a handheld magnetometer and near-infrared fluorescence imaging (FI). Extended pelvic lymph node dissection (PLND) and radical prostatectomy completed the surgery. All resected specimens were checked ex situ for magnetic activity and fluorescence and were histopathologically examined. RESULTS Pre-operative MRI identified 145 pelvic LNs with SPION uptake. In total, 75 (median 6, range 3‒13) magnetically active SLNs were resected, including 14 SLNs not seen on MRI. FI identified 89 fluorescent LNs (median 8.5, range 4‒13) of which 15 LNs were not magnetically active. Concordance of the different techniques was 70% for pre-operative MRI vs. magnetometer-guided PLND and 88% for magnetic vs. fluorescent SLN detection. CONCLUSION These are the first promising results of bimodal, magnetic fluorescent SLN detection in PCa patients. Our magnetic fluorescent hybrid approach provides the surgeon a pre-operative lymphatic roadmap by using MRI and intra-operative visual guidance through the application of a fluorescent lymphatic agent. The diagnostic accuracy of our new hybrid approach has to be evaluated in further studies. TRIAL REGISTRATION DRKS00032808. Registered 04 October 2023, retrospectively registered.
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Affiliation(s)
- Bianca Michalik
- University Hospital for Urology, Klinikum Oldenburg, Department of Human Medicine, School of Medicine and Health Sciences, Carl Von Ossietzky University Oldenburg, Oldenburg, Germany
| | - Svenja Engels
- University Hospital for Urology, Klinikum Oldenburg, Department of Human Medicine, School of Medicine and Health Sciences, Carl Von Ossietzky University Oldenburg, Oldenburg, Germany
| | - Maximilian C Otterbach
- University Institute for Diagnostic and Interventional Radiology, Klinikum Oldenburg, Department of Human Medicine, School of Medicine and Health Sciences, Carl Von Ossietzky University Oldenburg, Oldenburg, Germany
| | - Jorina Frerichs
- University Hospital for Urology, Klinikum Oldenburg, Department of Human Medicine, School of Medicine and Health Sciences, Carl Von Ossietzky University Oldenburg, Oldenburg, Germany
| | - Paula E Suhrhoff
- University Hospital for Urology, Klinikum Oldenburg, Department of Human Medicine, School of Medicine and Health Sciences, Carl Von Ossietzky University Oldenburg, Oldenburg, Germany
| | - Matthias N van Oosterom
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Martin H Maurer
- University Institute for Diagnostic and Interventional Radiology, Klinikum Oldenburg, Department of Human Medicine, School of Medicine and Health Sciences, Carl Von Ossietzky University Oldenburg, Oldenburg, Germany
| | - Friedhelm Wawroschek
- University Hospital for Urology, Klinikum Oldenburg, Department of Human Medicine, School of Medicine and Health Sciences, Carl Von Ossietzky University Oldenburg, Oldenburg, Germany
| | - Alexander Winter
- University Hospital for Urology, Klinikum Oldenburg, Department of Human Medicine, School of Medicine and Health Sciences, Carl Von Ossietzky University Oldenburg, Oldenburg, Germany.
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Engels S, Michalik B, Dirks L, van Oosterom MN, Wawroschek F, Winter A. A Fluorescent and Magnetic Hybrid Tracer for Improved Sentinel Lymphadenectomy in Prostate Cancer Patients. Biomedicines 2023; 11:2779. [PMID: 37893150 PMCID: PMC10604386 DOI: 10.3390/biomedicines11102779] [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: 09/01/2023] [Revised: 10/07/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023] Open
Abstract
In prostate cancer, sentinel lymph node dissection (sLND) offers a personalized procedure with staging ability which is at least equivalent to extended LND while inducing lower morbidity. A bimodal fluorescent-radioactive approach was introduced to improve sentinel LN (SLN) detection. We present the first in-human case series on exploring the use of a fluorescent-magnetic hybrid tracer in a radiation-free sLND procedure. Superparamagnetic iron oxide nanoparticles and indocyanine green were administered simultaneously in five prostate cancer patients scheduled for extended LND, sLND and radical prostatectomy. In situ and ex vivo fluorescence and magnetic signals were documented for each LN sample detected via a laparoscopic fluorescence imaging and magnetometer system. Fluorescence and magnetic activity could be detected in all patients. Overall, 19 lymph node spots could be detected in situ, 14 of which were fluorescently active and 18 of which were magnetically active. In two patients, no fluorescent LNs could be detected in situ. The separation of the LN samples resulted in a total number of 30 SLNs resected. Ex vivo measurements confirmed fluorescence in all but two magnetically active SLNs. One LN detected in situ with both modalities was subsequently shown to contain a metastasis. This study provides the first promising results of a bimodal, radiation-free sLND, combining the advantages of both the magnetic and fluorescence approaches.
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Affiliation(s)
- Svenja Engels
- University Hospital for Urology, Klinikum Oldenburg, Department of Human Medicine, School of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany; (S.E.); (B.M.); (L.D.); (F.W.)
| | - Bianca Michalik
- University Hospital for Urology, Klinikum Oldenburg, Department of Human Medicine, School of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany; (S.E.); (B.M.); (L.D.); (F.W.)
| | - Lena Dirks
- University Hospital for Urology, Klinikum Oldenburg, Department of Human Medicine, School of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany; (S.E.); (B.M.); (L.D.); (F.W.)
| | - Matthias N. van Oosterom
- Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands;
| | - Friedhelm Wawroschek
- University Hospital for Urology, Klinikum Oldenburg, Department of Human Medicine, School of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany; (S.E.); (B.M.); (L.D.); (F.W.)
| | - Alexander Winter
- University Hospital for Urology, Klinikum Oldenburg, Department of Human Medicine, School of Medicine and Health Sciences, Carl von Ossietzky University Oldenburg, 26129 Oldenburg, Germany; (S.E.); (B.M.); (L.D.); (F.W.)
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Rossin G, Zorzi F, De Pablos-Rodríguez P, Biasatti A, Marenco J, Ongaro L, Perotti A, Tulone G, Traunero F, Piasentin A, Gomez-Ferrer A, Zucchi A, Trombetta C, Simonato A, Rubio-Briones J, Bartoletti R, Ramírez-Backhaus M, Claps F. Sentinel Lymph Node Biopsy in Prostate Cancer: An Overview of Diagnostic Performance, Oncological Outcomes, Safety, and Feasibility. Diagnostics (Basel) 2023; 13:2543. [PMID: 37568905 PMCID: PMC10416990 DOI: 10.3390/diagnostics13152543] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/24/2023] [Accepted: 07/29/2023] [Indexed: 08/13/2023] Open
Abstract
Sentinel node biopsy (SNB) for prostate cancer (PCa) represents an innovative technique aimed at improving nodal staging accuracy. The routinary adoption of this procedure in patients undergoing radical prostatectomy (RP) might be crucial to identify candidates who could effectively benefit from extensive pelvic lymph nodal dissection (ePLND). Despite some promising results, SNB for PCa is still considered experimental due to the lack of solid evidence and procedural standardization. In this regard, our narrative review aimed to analyze the most recent literature in this field, providing an overview of both the diagnostic accuracy measures and the oncological outcomes of SNB.
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Affiliation(s)
- Giulio Rossin
- Urological Clinic, Department of Medicine, Surgery and Health Sciences, University of Trieste, Strada di Fiume, 447, 34149 Trieste, Italy; (G.R.); (F.Z.); (A.B.); (L.O.); (F.T.); (A.P.); (C.T.)
| | - Federico Zorzi
- Urological Clinic, Department of Medicine, Surgery and Health Sciences, University of Trieste, Strada di Fiume, 447, 34149 Trieste, Italy; (G.R.); (F.Z.); (A.B.); (L.O.); (F.T.); (A.P.); (C.T.)
| | - Pedro De Pablos-Rodríguez
- Department of Urology, Valencian Oncology Institute Foundation, FIVO, 46009 Valencia, Spain; (P.D.P.-R.); (J.M.); (A.G.-F.); (M.R.-B.)
| | - Arianna Biasatti
- Urological Clinic, Department of Medicine, Surgery and Health Sciences, University of Trieste, Strada di Fiume, 447, 34149 Trieste, Italy; (G.R.); (F.Z.); (A.B.); (L.O.); (F.T.); (A.P.); (C.T.)
| | - Josè Marenco
- Department of Urology, Valencian Oncology Institute Foundation, FIVO, 46009 Valencia, Spain; (P.D.P.-R.); (J.M.); (A.G.-F.); (M.R.-B.)
| | - Luca Ongaro
- Urological Clinic, Department of Medicine, Surgery and Health Sciences, University of Trieste, Strada di Fiume, 447, 34149 Trieste, Italy; (G.R.); (F.Z.); (A.B.); (L.O.); (F.T.); (A.P.); (C.T.)
| | - Alessandro Perotti
- Department of Translational Research and New Technologies, University of Pisa, 56126 Pisa, Italy; (A.P.); (A.Z.); (R.B.)
| | - Gabriele Tulone
- Urology Clinic, Department of Surgical, Oncological and Stomatological Sciences, University of Palermo, 90133 Palermo, Italy; (G.T.); (A.S.)
| | - Fabio Traunero
- Urological Clinic, Department of Medicine, Surgery and Health Sciences, University of Trieste, Strada di Fiume, 447, 34149 Trieste, Italy; (G.R.); (F.Z.); (A.B.); (L.O.); (F.T.); (A.P.); (C.T.)
| | - Andrea Piasentin
- Urological Clinic, Department of Medicine, Surgery and Health Sciences, University of Trieste, Strada di Fiume, 447, 34149 Trieste, Italy; (G.R.); (F.Z.); (A.B.); (L.O.); (F.T.); (A.P.); (C.T.)
| | - Alvaro Gomez-Ferrer
- Department of Urology, Valencian Oncology Institute Foundation, FIVO, 46009 Valencia, Spain; (P.D.P.-R.); (J.M.); (A.G.-F.); (M.R.-B.)
| | - Alessandro Zucchi
- Department of Translational Research and New Technologies, University of Pisa, 56126 Pisa, Italy; (A.P.); (A.Z.); (R.B.)
| | - Carlo Trombetta
- Urological Clinic, Department of Medicine, Surgery and Health Sciences, University of Trieste, Strada di Fiume, 447, 34149 Trieste, Italy; (G.R.); (F.Z.); (A.B.); (L.O.); (F.T.); (A.P.); (C.T.)
| | - Alchiede Simonato
- Urology Clinic, Department of Surgical, Oncological and Stomatological Sciences, University of Palermo, 90133 Palermo, Italy; (G.T.); (A.S.)
| | - José Rubio-Briones
- Clínica de Urología, Hospital VITHAS 9 de Octubre, 46015 Valencia, Spain;
| | - Riccardo Bartoletti
- Department of Translational Research and New Technologies, University of Pisa, 56126 Pisa, Italy; (A.P.); (A.Z.); (R.B.)
| | - Miguel Ramírez-Backhaus
- Department of Urology, Valencian Oncology Institute Foundation, FIVO, 46009 Valencia, Spain; (P.D.P.-R.); (J.M.); (A.G.-F.); (M.R.-B.)
| | - Francesco Claps
- Urological Clinic, Department of Medicine, Surgery and Health Sciences, University of Trieste, Strada di Fiume, 447, 34149 Trieste, Italy; (G.R.); (F.Z.); (A.B.); (L.O.); (F.T.); (A.P.); (C.T.)
- Department of Urology, Valencian Oncology Institute Foundation, FIVO, 46009 Valencia, Spain; (P.D.P.-R.); (J.M.); (A.G.-F.); (M.R.-B.)
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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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Hu J, Yu Y, Liu W, Zhong J, Zhou X, Xi H. The survival benefit of different lymph node yields in radical prostatectomy for pN1M0 prostate cancer patients: Implications from a population-based study. Front Oncol 2022; 12:953069. [PMID: 36033541 PMCID: PMC9404339 DOI: 10.3389/fonc.2022.953069] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 07/14/2022] [Indexed: 11/13/2022] Open
Abstract
Background and objectivesThe extent and survival benefits of lymph node dissection (LND) in radical prostatectomy (RP) for pN1M0 prostate cancer (PCa) patients remained unclear and were controversial. This study aimed to determine the survival benefit of different lymph node yields in RP for pN1M0 PCa patients.MethodspN1M0 PCa patients who received RP and LND were identified in Surveillance Epidemiology and End Results (SEER) (2010–2015). Patients were divided into two groups in SEER based on the removal of one to three regional lymph nodes (LND1 group) or four or more regional lymph nodes (LND4 group). Kaplan–Meier methods were used to calculate cancer-specific survival (CSS) and overall survival (OS).ResultsIn total, 2,200 patients were identified; 264 patients received LND1 and 1,936 patients received LND4. CSS had no significant difference between the LND4 and LND1 groups (101mon vs. 98mon, p = 0.064), and OS was higher in LND4 patients compared with LND1 patients (97mon vs. 93mon, p = 0.024); for patients with Gleason score = 9 or 10 and T3b or T4, 5-year OS was higher in patients undergoing LND4 (80.9%; 95% CI, 79.0–82.8) compared with those undergoing LND1 (67.5%; 95% CI, 60.8–74.2) (p = 0.009).ConclusionMore lymph node yield provided better survival for patients with Gleason score = 9 or 10 and T3b or T4, but not for other pN1M0 PCa patients. The extent of LND would be determined after a comprehensive evaluation including Gleason score, tumor stage, and the general condition of the patient.
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Affiliation(s)
- Jieping Hu
- *Correspondence: Haibo Xi, ; Jieping Hu,
| | | | | | | | | | - Haibo Xi
- *Correspondence: Haibo Xi, ; Jieping Hu,
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