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Impact of lymph node ratio in patients with stage IIIC endometrial carcinoma treated with postoperative radiotherapy
Cem Onal1,2, Sezin Yuce Sari3, Guler Yavas2
1Department of Radiation Oncology, Baskent University Faculty of Medicine, Adana Dr. Turgut Noyan Research & Treatment Center, Adana 01120, Turkey.
Abstract:
Aim: To evaluate the prognostic value of the lymph node ratio (LNR) and other clinicopathological factors in patients with stage IIIC endometrial cancer. Methods: Factors affecting overall survival (OS) and progression-free survival (PFS) were assessed in 397 patients with stage IIIC endometrial cancer treated with postoperative radiotherapy. Patients undergoing the removal of at least ten lymph nodes were included in the study. Results: The 5-year OS and PFS rates were 58% and 52%, respectively, with a median follow-up time of 35.7 months. The LNR cutoff value was 9.6%. In the multivariate analysis, advanced age (≥60 years), grade III tumor, presence of cervical stromal invasion, higher LNR and lack of adjuvant chemotherapy were independent predictors for worse OS and PFS. Conclusion: The LNR is an independent predictor for OS and PFS in patients with stage IIIC endometrial cancer treated with postoperative radiotherapy.
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