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Optimal Extent of Prophylactic Irradiation of Paraaortic Lymph Nodes in Patients with Uterine Cervical Cancer

Authors
 Jinhyun Choi  ;  Hong In Yoon  ;  Jeongshim Lee  ;  Ki Chang Keum  ;  Gwi Eon Kim  ;  Yong Bae Kim 
Citation
 PLoS One, Vol.10(12) : e0145158, 2015 
Journal Title
 PLoS One 
Issue Date
2015
MeSH
Adult ; Aged ; Aged, 80 and over ; Female ; Follow-Up Studies ; Gamma Rays/adverse effects ; Gamma Rays/therapeutic use* ; Gastrointestinal Diseases/etiology ; Humans ; Kaplan-Meier Estimate ; Lymph Nodes/pathology* ; Lymphatic Metastasis/pathology ; Middle Aged ; Neoplasm Staging ; Pelvic Neoplasms/mortality ; Pelvic Neoplasms/radiotherapy* ; Pelvic Neoplasms/secondary ; Positron-Emission Tomography ; Retrospective Studies ; Tomography, X-Ray Computed ; Treatment Outcome ; Uterine Cervical Neoplasms/complications ; Uterine Cervical Neoplasms/mortality ; Uterine Cervical Neoplasms/pathology*
Abstract
PURPOSE: The purpose of this study was to determine optimal extent of prophylactic irradiation of paraaortic lymph nodes (PALN) in patients with uterine cervical cancer who had metastatic pelvic LNs. METHODS AND MATERIALS: We retrospectively evaluated 103 patients with cervical cancer and pelvic lymph node metastasis who were treated with prophylactic semi-extended field radiotherapy (SEFRT) between 1990 and 2012. The semi-extended field included PALN below the second lumbar spine with prescribed doses of 45 to 50 Gy. Survival outcomes were calculated using the Kaplan-Meier method, and acute and late toxicities were scored using the Radiation Therapy Oncology Group and European Organisation for Research and Treatment of Cancer toxicity criteria. RESULTS: The median follow-up after SEFRT was 61 (range 5-296) months. Overall, 28 patients (27.2%) experienced treatment failures, which were classified as local in 8 patients (7.8%), regional in 8 patients (7.8%), and distant in 13 patients (12.6%). Of the regional failures, only two involved PALN failure around the renal artery or the renal hilum area at the upper margin of the semi-extended field. At 5 years, the overall survival was 82%. Grade 3 or higher acute gastrointestinal and genitourinary toxicities occurred in one and two patients, respectively. As a late toxicity, one patient developed grade 3 small bowel obstruction. CONCLUSION: Prophylactic SEFRT provided favorable outcomes with little acute or late gastrointestinal toxicity. For prophylaxis of PALN recurrences, upper part of PALN might not need to be included in patients with uterine cervical cancer and metastatic pelvic LNs.
Files in This Item:
T201504980.pdf Download
DOI
10.1371/journal.pone.0145158
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiation Oncology (방사선종양학교실) > 1. Journal Papers
Yonsei Authors
Keum, Ki Chang(금기창) ORCID logo https://orcid.org/0000-0003-4123-7998
Kim, Yong Bae(김용배) ORCID logo https://orcid.org/0000-0001-7573-6862
Yoon, Hong In(윤홍인) ORCID logo https://orcid.org/0000-0002-2106-6856
Lee, Jeong Shim(이정심)
Choi, Jinhyun(최진현)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/156967
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