Comparison of Peri-operative and Early Oncological Outcomes of Robot-Assisted vs. Open Salvage Lymph Node Dissection in Recurrent Prostate Cancer

Introduction: Salvage lymph node dissection (sLND) has been proposed as a treatment option for prostate cancer patients with lymph node (LN) recurrence following radical prostatectomy to delay or avoid palliative androgen deprivation therapy (ADT). Historically sLND has been performed using an open...

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Main Authors: Gaëtan Devos, Tim Muilwijk, Yannic Raskin, Victor Calderon, Lisa Moris, Thomas Van den Broeck, Charlien Berghen, Gert De Meerleer, Maarten Albersen, Hendrik Van Poppel, Wouter Everaerts, Steven Joniau
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-09-01
Series:Frontiers in Oncology
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Online Access:https://www.frontiersin.org/article/10.3389/fonc.2019.00781/full
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author Gaëtan Devos
Tim Muilwijk
Yannic Raskin
Victor Calderon
Lisa Moris
Lisa Moris
Thomas Van den Broeck
Charlien Berghen
Gert De Meerleer
Maarten Albersen
Hendrik Van Poppel
Wouter Everaerts
Steven Joniau
author_facet Gaëtan Devos
Tim Muilwijk
Yannic Raskin
Victor Calderon
Lisa Moris
Lisa Moris
Thomas Van den Broeck
Charlien Berghen
Gert De Meerleer
Maarten Albersen
Hendrik Van Poppel
Wouter Everaerts
Steven Joniau
author_sort Gaëtan Devos
collection DOAJ
description Introduction: Salvage lymph node dissection (sLND) has been proposed as a treatment option for prostate cancer patients with lymph node (LN) recurrence following radical prostatectomy to delay or avoid palliative androgen deprivation therapy (ADT). Historically sLND has been performed using an open approach, with its associated morbidity. A limited number of studies have reported peri-operative outcomes following robot-assisted sLND. However, a direct comparison with the open approach has hitherto not yet been reported. This study investigates whether robot-assisted sLND is associated with better peri-operative outcomes compared to the open approach. Early oncological outcomes are also compared.Patients and methods: In this retrospective study, clinical data were collected from 60 patients undergoing open sLND between 2010–2016 and 30 patients undergoing robot-assisted sLND between 2016 and 2018 at our tertiary referral center. The primary objective of the study was to compare peri-operative outcomes (length of stay, estimated blood loss, operative time, intra-operative, and postoperative complications) and LN yield between both procedures. As secondary objective early oncological outcome [biochemical recurrence-free survival (BRFS) and clinical recurrence-free survival (CRFS)] was compared. Variables of interest were compared using the chi-squared test (categorical variables), two sample t-test, and Mann-Whitney U-test (continuous variables). To compare BRFS and CRFS, Kaplan-Meier analysis, and log-rank tests were performed.Results: Robotic sLND was associated with reduced blood loss (median 100 vs. 275cc; p < 0.0001) and shorter length of stay (median 2 vs. 7 days; p < 0.0001) compared to open sLND. Moreover, postoperative complications within 30 days after surgery were more prevalent in the open sLND group compared to the robotic group (41.6% vs. 20%, p = 0.04). No significant differences in LN yield (for each sLND template), BRFS, and CRFS were detected between both groups.Conclusion: Robot-assisted sLND is associated with significantly reduced peri-operative morbidity compared to open sLND. No difference in LN yield, BRFS and CRFS was seen between both groups. Modern imaging techniques underestimate the tumor burden and therefore, the surgical sLND template should not be limited to the positive spots on pre-operative imaging.
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spelling doaj.art-d33a69a31ea74897accaffbcb345934f2022-12-22T02:17:24ZengFrontiers Media S.A.Frontiers in Oncology2234-943X2019-09-01910.3389/fonc.2019.00781478511Comparison of Peri-operative and Early Oncological Outcomes of Robot-Assisted vs. Open Salvage Lymph Node Dissection in Recurrent Prostate CancerGaëtan Devos0Tim Muilwijk1Yannic Raskin2Victor Calderon3Lisa Moris4Lisa Moris5Thomas Van den Broeck6Charlien Berghen7Gert De Meerleer8Maarten Albersen9Hendrik Van Poppel10Wouter Everaerts11Steven Joniau12Department of Urology, University Hospitals Leuven, Leuven, BelgiumDepartment of Urology, University Hospitals Leuven, Leuven, BelgiumDepartment of Urology, University Hospitals Leuven, Leuven, BelgiumDepartment of Urology, University Hospitals Leuven, Leuven, BelgiumDepartment of Urology, University Hospitals Leuven, Leuven, BelgiumLaboratory of Molecular Endocrinology, KU Leuven, Leuven, BelgiumLaboratory of Molecular Endocrinology, KU Leuven, Leuven, BelgiumDepartment of Radiation Oncology, University Hospitals Leuven, Leuven, BelgiumDepartment of Radiation Oncology, University Hospitals Leuven, Leuven, BelgiumDepartment of Urology, University Hospitals Leuven, Leuven, BelgiumDepartment of Urology, University Hospitals Leuven, Leuven, BelgiumDepartment of Urology, University Hospitals Leuven, Leuven, BelgiumDepartment of Urology, University Hospitals Leuven, Leuven, BelgiumIntroduction: Salvage lymph node dissection (sLND) has been proposed as a treatment option for prostate cancer patients with lymph node (LN) recurrence following radical prostatectomy to delay or avoid palliative androgen deprivation therapy (ADT). Historically sLND has been performed using an open approach, with its associated morbidity. A limited number of studies have reported peri-operative outcomes following robot-assisted sLND. However, a direct comparison with the open approach has hitherto not yet been reported. This study investigates whether robot-assisted sLND is associated with better peri-operative outcomes compared to the open approach. Early oncological outcomes are also compared.Patients and methods: In this retrospective study, clinical data were collected from 60 patients undergoing open sLND between 2010–2016 and 30 patients undergoing robot-assisted sLND between 2016 and 2018 at our tertiary referral center. The primary objective of the study was to compare peri-operative outcomes (length of stay, estimated blood loss, operative time, intra-operative, and postoperative complications) and LN yield between both procedures. As secondary objective early oncological outcome [biochemical recurrence-free survival (BRFS) and clinical recurrence-free survival (CRFS)] was compared. Variables of interest were compared using the chi-squared test (categorical variables), two sample t-test, and Mann-Whitney U-test (continuous variables). To compare BRFS and CRFS, Kaplan-Meier analysis, and log-rank tests were performed.Results: Robotic sLND was associated with reduced blood loss (median 100 vs. 275cc; p < 0.0001) and shorter length of stay (median 2 vs. 7 days; p < 0.0001) compared to open sLND. Moreover, postoperative complications within 30 days after surgery were more prevalent in the open sLND group compared to the robotic group (41.6% vs. 20%, p = 0.04). No significant differences in LN yield (for each sLND template), BRFS, and CRFS were detected between both groups.Conclusion: Robot-assisted sLND is associated with significantly reduced peri-operative morbidity compared to open sLND. No difference in LN yield, BRFS and CRFS was seen between both groups. Modern imaging techniques underestimate the tumor burden and therefore, the surgical sLND template should not be limited to the positive spots on pre-operative imaging.https://www.frontiersin.org/article/10.3389/fonc.2019.00781/fullprostate cancersalvage lymph node dissectionlymph node recurrencerobot-assisted approachopen approach
spellingShingle Gaëtan Devos
Tim Muilwijk
Yannic Raskin
Victor Calderon
Lisa Moris
Lisa Moris
Thomas Van den Broeck
Charlien Berghen
Gert De Meerleer
Maarten Albersen
Hendrik Van Poppel
Wouter Everaerts
Steven Joniau
Comparison of Peri-operative and Early Oncological Outcomes of Robot-Assisted vs. Open Salvage Lymph Node Dissection in Recurrent Prostate Cancer
Frontiers in Oncology
prostate cancer
salvage lymph node dissection
lymph node recurrence
robot-assisted approach
open approach
title Comparison of Peri-operative and Early Oncological Outcomes of Robot-Assisted vs. Open Salvage Lymph Node Dissection in Recurrent Prostate Cancer
title_full Comparison of Peri-operative and Early Oncological Outcomes of Robot-Assisted vs. Open Salvage Lymph Node Dissection in Recurrent Prostate Cancer
title_fullStr Comparison of Peri-operative and Early Oncological Outcomes of Robot-Assisted vs. Open Salvage Lymph Node Dissection in Recurrent Prostate Cancer
title_full_unstemmed Comparison of Peri-operative and Early Oncological Outcomes of Robot-Assisted vs. Open Salvage Lymph Node Dissection in Recurrent Prostate Cancer
title_short Comparison of Peri-operative and Early Oncological Outcomes of Robot-Assisted vs. Open Salvage Lymph Node Dissection in Recurrent Prostate Cancer
title_sort comparison of peri operative and early oncological outcomes of robot assisted vs open salvage lymph node dissection in recurrent prostate cancer
topic prostate cancer
salvage lymph node dissection
lymph node recurrence
robot-assisted approach
open approach
url https://www.frontiersin.org/article/10.3389/fonc.2019.00781/full
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