Abstract
Objective
The standard therapy for high-grade endometrial cancer is surgery but the therapeutic effects of pelvic and paraaortic lymph node dissection (LND) are poorly investigated. In this study, we retrospectively evaluated overall survival, recurrence rates and recurrence-free survival among patients with high-grade type I and II endometrial carcinoma who underwent LND.
Methods
This study included 284 patients who are recorded in the German Tumor Centre Regensburg form 1998 to 2015 and were selected by cancer grading, the absence of secondary tumors, primary surgery including hysterectomy and available follow-up. 244 of the 284 patients in this cohort were unequivocally classified as R0 after resection.
Results
A significantly increased overall survival was observed for systematic LND of 25 or more paraaortic and pelvic lymph nodes versus patients who did not undergo such intervention (p < 0.001) or had elective LND of 1–24 lymph nodes both in univariable (p = 0.016) and multivariable (p = 0.014) analysis. A similar observation was made for recurrence-free survival of patients in the cohort who underwent complete tumor resection (R0). In addition, a reduced cumulative recurrence rate was observed for patients with systematic LND.
Conclusions
Our study provides evidence that the systematic removal of 25 or more pelvic and paraaortic lymph nodes reduces the recurrence rate and that it is beneficial for the long-term overall and recurrence-free survival of patients with high-grade endometrial cancer.
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Thomas Papathemelis, Sophia Scharl, Karin Kronberger, Michael Gerken, Anton Scharl, Armin Pauer and Monika Klinkhammer-Schalke all declare that they have no conflict of interest.
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Supplementary material Figure S1. Overall survival of patients with stage FIGO I according to lymphadenectomy (TIFF 919 kb)
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Supplementary material Figure S2. Overall survival of patients with stage FIGO II according to lymphadenectomy (TIFF 919 kb)
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Supplementary material Figure S3. Overall survival of patients with stage FIGO III according to lymphadenectomy (TIFF 919 kb)
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Supplementary material Figure S4. Overall survival of patients with type I G3 carcinoma according to lymphadenectomy (TIFF 919 kb)
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Supplementary material Figure S5. Overall survival of patients with carcinosarcoma according to lymphadenectomy (TIFF 919 kb)
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Supplementary material Figure S6. Overall survival of patients with type II carcinoma according to lymphadenectomy (TIFF 919 kb)
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Supplementary material Figure S7. Cumulative rate of recurrences in R0-resected patients according to lymphadenectomy (TIFF 919 kb)
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Supplementary material Figure S10. Overall survival according to extension of lymphadenectomy in patients with paraaortic and pelvic lymphadenectomy (TIFF 919 kb)
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Supplementary material Figure S11. Overall survival according to extension of lymphadenectomy in patients with pelvic and other lymphadenectomy (TIFF 919 kb)
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Supplementary material Figure S12. Overall survival according to region of lymphadenectomy in patients with systematic lymphadenectomy (TIFF 919 kb)
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Supplementary material Figure S13. Overall survival according to region of lymphadenectomy in patients with elective lymphadenectomy (TIFF 919 kb)
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Papathemelis, T., Scharl, S., Kronberger, K. et al. Survival benefit of pelvic and paraaortic lymphadenectomy in high-grade endometrial carcinoma: a retrospective population-based cohort analysis. J Cancer Res Clin Oncol 143, 2555–2562 (2017). https://doi.org/10.1007/s00432-017-2508-1
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DOI: https://doi.org/10.1007/s00432-017-2508-1