55 93

Cited 0 times in

The Impact of Post-Mastectomy Radiotherapy on Survival Outcomes in Breast Cancer Patients Who Underwent Neoadjuvant Chemotherapy

Authors
 Janghee Lee  ;  Jee-Ye Kim  ;  Soong-June Bae  ;  Yeona Cho  ;  Jung-Hwan Ji  ;  Dooreh Kim  ;  Sung-Gwe Ahn  ;  Hyung-Seok Park  ;  Seho Park  ;  Seung-Il Kim  ;  Byeong-Woo Park  ;  Joon Jeong 
Citation
 CANCERS, Vol.13(24) : 6205, 2021-12 
Journal Title
CANCERS
Issue Date
2021-12
Keywords
breast cancer ; neoadjuvant chemotherapy ; neoadjuvant response index ; post-mastectomy radiotherapy ; propensity score matching
Abstract
This study aimed to determine whether post-mastectomy radiotherapy (PMRT) is beneficial for the prognosis of patients who achieved pathologic complete response (pCR), or who had minimal residual disease, after undergoing neoadjuvant chemotherapy (NAC). Patients who underwent a total mastectomy between 2006 and 2018, after NAC, were included. Patients who did not receive PMRT were matched using 1:3 propensity score matching (PSM). Kaplan-Meier survival curves were used to compare locoregional recurrence-free survival (LRRFS) and overall survival (OS). A total of 368 patients were included after 1:3 PSM. PMRT improved the LRRFS (p = 0.016) and OS (p = 0.017) rates of patients who underwent NAC. However, PMRT did not affect the prognosis of patients with pCR (LRRFS: p = 0.999; OS: p = 0.453). In addition, PMRT had a limited effect on LRRFS and OS in patients who responded well to NAC, with a neoadjuvant response index (NRI) value of 0.7-1.0 (LRRFS: p = 0.568; OS: p = 0.875). PMRT improved the OS of patients with a large residual tumor burden, such as nodal metastases or pathologic stage II/III. The benefits of PMRT vary depending on the patients' response to NAC, although PMRT is useful for treating patients who underwent NAC. PMRT can be omitted, not only in patients with pCR, but also in good responders with an NRI value of 0.7-1.0.
Files in This Item:
T202125132.pdf Download
DOI
10.3390/cancers13246205
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiation Oncology (방사선종양학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Surgery (외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Dooreh(김두레)
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, 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
Cho, Yeona(조연아) ORCID logo https://orcid.org/0000-0002-1202-0880
Ji, Junghwan(지정환)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/187696
사서에게 알리기
  feedback

qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse

Links