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Clinical outcomes in patients treated with radiotherapy after surgery for cervical cancer

Radiation Oncology Journal
2017년 35권 1호 p.39 ~ p.47
 ( Yang Kyung-Mi ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Radiation Oncology

 ( Park Won ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Radiation Oncology
 ( Huh Seung-Jae ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Radiation Oncology
 ( Bae Duk-Soo ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Obstetrics and Gynaecology
 ( Kim Byoung-Gie ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Obstetrics and Gynaecology
 ( Lee Jeong-Won ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Obstetrics and Gynaecology

Abstract

Purpose: The purpose of this study was to analyze clinical outcomes from cervical cancer and stratify patients into risk groups for prognostic factors for early-stage disease.

Materials and Methods: We retrospectively reviewed patients with stage IB or IIA cervical cancer treated with adjuvant radiotherapy (RT) or concurrent chemoradiotherapy (CCRT) following primary surgery at Samsung Medical Center from 2001 to 2011. Adjuvant RT was added for patients with intermediate-risk factors, and adjuvant CCRT was performed on high-risk patients after surgery.

Results: We reviewed 247 patients?149 in the high-risk group and 98 in intermediate-risk group. The median follow-up was 62 months. Loco-regional failure (LRF) alone occurred in 7 patients (2.8%), distant metastasis alone in 37 patients (15.0%) and LRF with DM in 4 patients (1.6%). The 5-year disease-free survival (DFS) and overall survival (OS) rates for both groups were 79.7% and 87.6%, respectively. In the high-risk group, the 5-year DFS and OS probabilities were 72.5% and 81.9%, respectively. Histologic type, pathologic tumor size, and the number of pelvic lymph node (PLN) metastasis were significant prognostic factors for DFS and OS. We suggest a scoring system (0?3) using these prognostic factors to predict poor prognosis in high-risk patients. Using this system, patients with higher scores have higher recurrence and lower survival rates.

Conclusion: In the high-risk cervical-cancer group who received primary surgery and adjuvant CCRT, non-squamous type, large tumor size and the number of PLN metastasis were significant prognostic factors, and the number of these factors was associated with survival rates.

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