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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

Authors
Kim, M | Kwon, BS | Chang, HK | Lee, S | Chang, SJ  | Choi, JY | Park, SY | Lee, M | Ryu, HS  | Kim, YB
Citation
Journal of gynecologic oncology, 30(3). : e44-e44, 2019
Journal Title
Journal of gynecologic oncology
ISSN
2005-03802005-0399
Abstract
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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DOI
10.3802/jgo.2019.30.e44
PMID
30887761
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Obstetrics & Gynecology
Ajou Authors
유, 희석  |  장, 석준
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