Abstract
Objective
The primary therapy for intermediate- and high-risk endometrial cancer includes pelvic and paraaortic lymph node evaluation. Laparoscopic surgery is an increasingly popular intervention due to decreased risk and better short-term morbidity; however, a recent study casts doubt on the benefit of this approach in terms of oncological safety. In this cancer registry study, we sought to evaluate the benefit of laparoscopy versus laparotomy and retrospectively compared overall survival, recurrence rates, and recurrence-free survival among patients with intermediate- and high-risk endometrial cancer who underwent either laparoscopic or open surgery.
Methods
This observational study included 419 patients who have been treated from 2011 to 2017. We employed Kaplan–Meier method, and univariable and multivariable Cox-regression to compare overall survival, recurrence rates, and recurrence-free survival in 110 patients, who underwent laparoscopic, with 309 patients, who underwent open surgery. To address the confounding bias in this retrospective study, we also performed a propensity score matching (PSM) analysis including 357 patients (laparoscopy: n = 107; open surgery: n = 250).
Results
We found a benefit for laparoscopic over open surgery in patients with intermediate- and high-risk endometrial cancer for overall survival in both univariable (p = 0.002; PSM: p = 0.016) and multivariable analyses (p = 0.019; PSM: p = 0.007). In contrast, there was no statistically significant difference between both patient groups regarding the cumulative recurrence rates. A univariable analysis identified a significant benefit for laparoscopy regarding recurrence-free survival (p = 0.003; PSM: p = 0.029) but a multivariable analysis failed to confirm this finding (p = 0.108; PSM: p = 0.118).
Conclusions
Our study provides evidence that laparoscopic systematic lymphadenectomy does not present a lower oncological efficacy than open surgery in the treatment of patients with endometrial cancer.
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Thomas Papathemelis, Helen Oppermann, Stella Grafl, Michael Gerken, Armin Pauer, Sophia Scharl, Anton Scharl, Elisabeth Inwald, Atanas Ignatov, Olaf Ortmann, Monika Klinkhammer-Schalke, Alexander Hein, Matthias W. Beckmann and Michael P. Lux declare that they have no conflict of interest.
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All procedures performed in this study were in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki Declaration and its later amendments. This article does not contain any studies with human participants or animals performed by any of the authors.
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Papathemelis, T., Oppermann, H., Grafl, S. et al. Long-term outcome of patients with intermediate- and high-risk endometrial cancer after pelvic and paraaortic lymph node dissection: a comparison of laparoscopic vs. open procedure . J Cancer Res Clin Oncol 146, 961–969 (2020). https://doi.org/10.1007/s00432-019-03122-8
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DOI: https://doi.org/10.1007/s00432-019-03122-8