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Validation of Clinical Treatment Score post-5 years (CTS5) risk stratification in premenopausal breast cancer patients and Ki-67 labelling index

Authors
 Janghee Lee  ;  Chihwan Cha  ;  Sung Gwe Ahn  ;  Dooreh Kim  ;  Soeun Park  ;  Soong June Bae  ;  Jeeye Kim  ;  Hyung Seok Park  ;  Seho Park  ;  Seung Il Kim  ;  Byeong-Woo Park  ;  Joon Jeong 
Citation
 SCIENTIFIC REPORTS, Vol.10(1) : 16850, 2020-10 
Journal Title
 SCIENTIFIC REPORTS 
Issue Date
2020-10
Abstract
This study aimed to validate the Clinical Treatment Score post-5 years (CTS5)-based risk stratification in a cohort comprising pre- and postmenopausal patients with estrogen receptor (ER)-positive breast cancer. We investigated the clinicopathologic parameters including Ki-67 labelling index (LI) to identify factors affecting late distant recurrence (DR). Women with ER-positive breast cancer who were free of DR for 5 years were identified between January 2004 and December 2009. We investigated the risk of late DR (5-10 years) according to the CTS5 risk group. Cox regression analysis was used to determine the prognostic performance of CTS5 and identify factors associated with late DR. In all, 680 women were included. Of these, 379 (55.7%) were premenopausal and 301 (44.3%) were postmenopausal. At a median follow-up of 118 months, 32 women had late DR. CTS5 was a significant prognostic factor for late DR in both pre- and postmenopausal women. In the low CTS5 group, high Ki-67 LI (> 20%) was a significant risk factor for late DR. CTS5 is a useful tool for assessing the risk of late DR in pre- and postmenopausal women with ER-positive breast cancer. Extended endocrine therapy can be considered in patients with high Ki-67 LI (> 20%) in the low CTS5 group.
Files in This Item:
T202004277.pdf Download
DOI
10.1038/s41598-020-74055-3
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Surgery (외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Seung Il(김승일)
Kim, Jee Ye(김지예) ORCID logo https://orcid.org/0000-0003-3936-4410
Park, Byeong Woo(박병우) ORCID logo https://orcid.org/0000-0003-1353-2607
Park, Se Ho(박세호) ORCID logo https://orcid.org/0000-0001-8089-2755
Park, So Eun(박소은)
Park, Hyung Seok(박형석) ORCID logo https://orcid.org/0000-0001-5322-6036
Bae, Soong June(배숭준) ORCID logo https://orcid.org/0000-0002-0012-9694
Ahn, Sung Gwe(안성귀) ORCID logo https://orcid.org/0000-0002-8778-9686
Jeong, Joon(정준) ORCID logo https://orcid.org/0000-0003-0397-0005
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/180182
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