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KMID : 1137020190300030044
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Journal of Gynecologic Oncology
2019 Volume.30 No. 3 p.44 ~ p.44
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Survival outcomes of adjuvant radiotherapy and chemotherapy in women with stage I serous papillary and clear cell carcinoma of the endometrium: a Korean multicenter study
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Kim Mi-Seon
Kwon Byung-Su
Chang Ha-Kyun
Lee Seung-Mee
Chang Suk-Joon
Choi Jin-Young
Park Sang-Yoon
Lee Maria
Ryu Hee-Sug
Kim Yong-Beom
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Abstract
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Objective: To compare the survival outcomes of adjuvant radiotherapy and chemotherapy in women with uterine-confined endometrial cancer with uterine papillary serous carcinoma (UPSC) or clear cell carcinoma (CCC).
Methods: Medical records of 80 women who underwent surgical staging for endometrial cancer were retrospectively reviewed. Stage I UPSC and CCC were pathologically confirmed after surgery. Survival outcomes were compared between the adjuvant radiotherapy and chemotherapy groups.
Results: Fifty-four (67.5%) and 26 (32.5%) women had UPSC and CCC, respectively. Adjuvant therapy was administered to 59/80 (73.8%) women (25 radiotherapy and 34 chemotherapy). High preoperative serum cancer antigen-125 level (25.1±20.2 vs. 11.5±6.5 IU/mL, p<0.001), open surgery (71.2% vs. 28.6%, p=0.001), myometrial invasion (MI) ≥1/2 (33.9% vs. 0, p=0.002), and lymphovascular space invasion (LVSI; 28.8% vs. 4.8%, p=0.023) were frequent in women who received adjuvant therapy compared to those who did not. However, the histologic type, MI ≥1/2, and LVSI did not differ between women who received adjuvant radiotherapy and those who received chemotherapy. The 5-year progression-free survival (78.9% vs. 80.1%, p>0.999) and overall survival (77.5% vs. 87.8%, p=0.373) rates were similar between the groups. Neither radiotherapy (hazard ratio [HR]=1.810; 95% confidence interval [CI]=0.297?11.027; p=0.520) nor chemotherapy (HR=1.638; 95% CI=0.288?9.321; p=0.578) after surgery was independently associated with disease recurrence.
Conclusion: Our findings showed similar survival outcomes for adjuvant radiotherapy and chemotherapy in stage I UPSC and CCC of the endometrium. Further large study with analysis stratified by MI or LVSI is required.
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KEYWORD
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Endometrial Neoplasms, Adenocarcinoma, Papillary, Adenocarcinoma, Clear Cell, Chemotherapy, Adjuvant, Radiotherapy, Adjuvant
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