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Treatment outcomes of curative radiotherapy in patients with vulvar cancer: results of the retrospective KROG 1203 study

Authors
 Youngkyong Kim  ;  Joo-Young Kim  ;  Ja Young Kim  ;  Nam Kwon Lee  ;  Jin Hee Kim  ;  Yong Bae Kim  ;  Young Seok Kim  ;  Juree Kim  ;  Yeon-Sil Kim  ;  Dae Sik Yang  ;  Yeon-Joo Kim 
Citation
 RADIATION ONCOLOGY JOURNAL, Vol.33(3) : 198-206, 2015 
Journal Title
RADIATION ONCOLOGY JOURNAL
ISSN
 2234-1900 
Issue Date
2015
Keywords
Radiotherapy ; Risk factor ; Survival ; Vulvar cancer
Abstract
PURPOSE: We evaluated the prognostic factors and clinical outcomes of 56 patients with vulvar cancer treated with curative radiotherapy (RT) or concurrent chemoradiotherapy. MATERIALS AND METHODS: Overall survival (OS) and disease-free survival (DFS) were assessed retrospectively. Prognostic factors evaluated included age, International Federation of Gynecology and Obstetrics (FIGO) stage, TNM classification, tumor size, treatment modality, RT duration, and RT field. The association between the tumor human papillomavirus (HPV) status and survival was analyzed in 35 patients. RESULTS: During the median follow-up of 2.8 years (range, 0.3 to 18.9 years), 21 patients (37.5%) experienced treatment failure. Fifteen patients (27%) had local failure: nine (16%) local failure only, three (5%) locoregional failure, two (4%) local and distant failure, and one (2%) locoregional and distant failure. Of 56 patients, seven (13%) had persistent disease at the first follow-up at 2 months and all but one died within a year after completing RT. The 5-year OS and DFS were 51.6% and 44.0%, respectively. In multivariate analysis, clinical size ≥3 cm predicted a poor prognostic factor for DFS (p = 0.040) and age (≥70 years) was poor prognostic for DFS (p = 0.032) and OS (p = 0.048). Patients with HPV-positive tumors tended to have better 5-year OS and DFS, but the differences were not significant statistically. CONCLUSION: Clinical size ≥3 cm was a significant prognostic factor for DFS. However, age was the most important prognostic factor for DFS and OS in patients treated with curative RT. Further studies are needed to determine which treatment should be considered for old age ≥70 years.
Files in This Item:
T201506645.pdf Download
DOI
10.3857/roj.2015.33.3.198
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiation Oncology (방사선종양학교실) > 1. Journal Papers
Yonsei Authors
Kim, Yong Bae(김용배) ORCID logo https://orcid.org/0000-0001-7573-6862
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/155719
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