Oncologic Outcomes of Template Versus Radioguided Salvage Lymph Node Dissection for Node-only Recurrent Prostate Cancer on Prostate-specific Membrane Antigen Positron Emission Tomography Scan: Results from a Multi-institutional Collaboration.

In patients treated with salvage lymph node dissection (sLND) for nodal recurrence of prostate cancer, whether radioguided surgery (RGS) might improve oncologic outcomes as compared with template sLND remains unknown.

This study included 259 patients who experienced a prostate-specific antigen (PSA) rise and nodal-only recurrence after radical prostatectomy and underwent pelvic sLND at 11 tertiary referral centers between 2012 and 2022. Lymph node recurrence was documented by prostate-specific membrane antigen positron emission tomography scans. The outcomes included biochemical recurrence (BCR) and clinical recurrence (CR) after sLND. The probability of freedom from each outcome was calculated using Kaplan-Meier analyses. A Cox regression analysis was used to test the hypothesis that surgical technique for sLND (template vs RGS) might be associated with oncologic outcomes. Overall, 80 (31%) and 179 (69%) patients received template and radioguided sLND, respectively. PSA level at sLND was higher in the template than in the radioguided group (median: 1.3 vs 0.6 ng/ml; p < 0.0001), whereas the number of positive nodes on final pathology did not differ between the groups (p = 0.13). The first postoperative PSA level was higher in the template than in the radioguided group (median: 0.5 vs 0.1 ng/ml; p < 0.0001). Overall, there were 181 cases of BCR and 76 cases of CR after sLND. The median follow-up for survivors was 21 mo (interquartile range: 7, 36). The 2-yr BCR-free survival rate for patients in the template versus RGS sLND group was 18% (95% confidence interval [CI]: 9%, 29%) versus 30% (95% CI: 22%, 37%). The 2-yr CR-free survival rate for the template versus RGS sLND group was 51% (95% CI: 35%, 65%) versus 73% (95% CI: 65%, 80%). On multivariable analyses, we did not find evidence of a statistically significant difference between the groups with respect to BCR after sLND (p = 0.7), whereas men treated with RGS had a lower risk of CR after sLND than those receiving template sLND (hazard ratio: 0.51; 95% CI: 0.29, 0.92; p < 0.026). Results of the sensitivity analyses were generally consistent with our main findings. Our data suggest that, in men with node-recurrent prostate cancer treated with sLND, RGS may offer important surgical guidance for surgeons, and this may eventually translate into improved oncologic outcomes. Awaiting further evidence on long-term outcomes of RGS, our study represents the most solid comparative data on different techniques for sLND and provides relevant data for counseling patients with node-only recurrent prostate cancer.

European urology focus. 2025 Aug 18 [Epub ahead of print]

Carlo Andrea Bravi, Sophie Knipper, Axel Heidenreich, Nicola Fossati, Giorgio Gandaglia, Paolo Dell'Oglio, Nazareno Suardi, Daniar Osmonov, Klaus-Peter Juenemann, Jeffrey Karnes, Alexander Kretschmer, Lars Budäus, Fabian Falkenbach, Alexander Buchner, Christian Stief, Andreas Hiester, Peter Albers, Gaetan Devos, Steven Joniau, Hendrik Van Poppel, Bernhard Grubmüller, Shahrokh Shariat, David Pfister, Derya Tilki, Markus Graefen, Inderbir S Gill, Alex Mottrie, Francesco Montorsi, Alberto Briganti, Tobias Maurer

Department of Urology, Northampton General Hospital, Northampton, UK; Department of Urology, The Royal Marsden NHS Foundation Trust, London, UK; Department of Urology, Onze-Lieve-Vrouwziekenhuis Hospital, Aalst, Belgium; Division of Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy. Electronic address: ., Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany; Department of Urology, Vivantes Klinikum am Urban, Berlin, Germany., Department of Urology, University of Cologne, Cologne, Germany; Department of Urology, Medical University Vienna, Vienna, Austria., Department of Urology, Ospedale Regionale di Lugano, Civico USI - Università della Svizzera Italiana, Lugano, Switzerland., Division of Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Milan, Italy., Department of Urology, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy; Department of Urology, Netherlands Cancer Institute-Antoni Van Leeuwenhoek Hospital, Amsterdam, The Netherlands; Interventional Molecular Imaging Laboratory, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands., Department of Urology, Ospedali Civili of Brescia, Brescia, Italy., Department of Urology and Pediatric Urology, University Hospital Schleswig Holstein, Campus Kiel, Kiel, Germany., Department of Urology, Mayo Clinic, Rochester, MN, USA., Department of Urology, Ludwig-Maximilians-University, Munich, Germany., Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany., Department of Urology, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany., Department of Urology, University Hospitals Leuven, Leuven, Belgium., Department of Urology, Medical University of Vienna, Vienna, Austria., Department of Urology, Medical University of Vienna, Vienna, Austria; Institute for Urology and Reproductive Health, Sechenov University, Moscow, Russia., Department of Urology, University of Cologne, Cologne, Germany., USC Institute of Urology, University of Southern California, Los Angeles, CA, USA., Department of Urology, Onze-Lieve-Vrouwziekenhuis Hospital, Aalst, Belgium., Martini-Klinik Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany; Department of Urology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.

Go Beyond the Abstract and Read a Commentary by the Authors