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The addition of radiotherapy to breast-conserving surgery improves survival for elderly patients with early breast cancer

PURPOSE: To evaluate whether adjuvant radiotherapy (RT) after breast-conserving surgery (BCS) was associated with better survival among elderly (≥70 years) breast cancer patients with T1-2N0 and estrogen receptor (ER) positive disease. METHODS: We included patients who met the inclusion criteria bet...

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Autores principales: Yang, Shi-Ping, Tan, Lu-Lu, Zhou, Ping, Lian, Chen-Lu, Wu, San-Gang, He, Zhen-Yu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9727219/
https://www.ncbi.nlm.nih.gov/pubmed/36505844
http://dx.doi.org/10.3389/fonc.2022.917054
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author Yang, Shi-Ping
Tan, Lu-Lu
Zhou, Ping
Lian, Chen-Lu
Wu, San-Gang
He, Zhen-Yu
author_facet Yang, Shi-Ping
Tan, Lu-Lu
Zhou, Ping
Lian, Chen-Lu
Wu, San-Gang
He, Zhen-Yu
author_sort Yang, Shi-Ping
collection PubMed
description PURPOSE: To evaluate whether adjuvant radiotherapy (RT) after breast-conserving surgery (BCS) was associated with better survival among elderly (≥70 years) breast cancer patients with T1-2N0 and estrogen receptor (ER) positive disease. METHODS: We included patients who met the inclusion criteria between 2010 and 2014 from the Surveillance, Epidemiology, and End Results program. Patients were subdivided into three groups based on surgery and RT: BCS alone, BCS plus RT, and refusal of RT. The primary outcomes were breast cancer-specific survival (BCSS) and overall survival (OS). Chi-squared tests, Kaplan–Meier method, and Multivariate Cox regression analysis were used for statistical analysis. Propensity score matching (PSM) was performed to minimize the potential selection bias. RESULTS: A total of 26586 patients were included in this analysis. The median follow-up was 66 months. Of these patients, 15591 (58.6%) patients received RT, RT was recommended but not performed due to patient refusal for 1270 (4.8%) patients, and RT was not recommended for 9725 (36.6%) patients. The 5-year BCSS was 98.3% for patients receiving RT, 97.1% for patients refusal of RT, and 96.4% for patients not recommended RT (P<0.001). The 5-year OS was 88.6% for patients receiving RT, 77.6% for patients who refused RT, and 72.1% for patients not recommended RT (P<0.001). Multivariate Cox regression analyses showed that patients who received adjuvant RT after BCS had significantly better BCSS (hazard ratio [HR] 0.523, 95%confidence interval [CI] 0.447-0.612, P<0.001) and OS (HR 0.589, 95%CI 0.558-0.622, P<0.001) compared to those without RT. A total of 7721 pairs of patients were matched successfully between those with and without RT using PSM. The results also showed that patients who received RT after BCS had significantly better BCSS (HR 562, 95%CI 0.467-0.676, P<0.001) and OS (HR 0.612, 95%CI 0.0.575-0.652, P<0.001) compared to those without RT. CONCLUSIONS: These data suggest that individual counseling is important for treatment decision-making in elderly breast cancer patients with T1-2N0 and ER-positive disease. Given the relatively lower toxicity of modern RT techniques, adjuvant RT should be recommended in patients with high life expectancy.
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spelling pubmed-97272192022-12-08 The addition of radiotherapy to breast-conserving surgery improves survival for elderly patients with early breast cancer Yang, Shi-Ping Tan, Lu-Lu Zhou, Ping Lian, Chen-Lu Wu, San-Gang He, Zhen-Yu Front Oncol Oncology PURPOSE: To evaluate whether adjuvant radiotherapy (RT) after breast-conserving surgery (BCS) was associated with better survival among elderly (≥70 years) breast cancer patients with T1-2N0 and estrogen receptor (ER) positive disease. METHODS: We included patients who met the inclusion criteria between 2010 and 2014 from the Surveillance, Epidemiology, and End Results program. Patients were subdivided into three groups based on surgery and RT: BCS alone, BCS plus RT, and refusal of RT. The primary outcomes were breast cancer-specific survival (BCSS) and overall survival (OS). Chi-squared tests, Kaplan–Meier method, and Multivariate Cox regression analysis were used for statistical analysis. Propensity score matching (PSM) was performed to minimize the potential selection bias. RESULTS: A total of 26586 patients were included in this analysis. The median follow-up was 66 months. Of these patients, 15591 (58.6%) patients received RT, RT was recommended but not performed due to patient refusal for 1270 (4.8%) patients, and RT was not recommended for 9725 (36.6%) patients. The 5-year BCSS was 98.3% for patients receiving RT, 97.1% for patients refusal of RT, and 96.4% for patients not recommended RT (P<0.001). The 5-year OS was 88.6% for patients receiving RT, 77.6% for patients who refused RT, and 72.1% for patients not recommended RT (P<0.001). Multivariate Cox regression analyses showed that patients who received adjuvant RT after BCS had significantly better BCSS (hazard ratio [HR] 0.523, 95%confidence interval [CI] 0.447-0.612, P<0.001) and OS (HR 0.589, 95%CI 0.558-0.622, P<0.001) compared to those without RT. A total of 7721 pairs of patients were matched successfully between those with and without RT using PSM. The results also showed that patients who received RT after BCS had significantly better BCSS (HR 562, 95%CI 0.467-0.676, P<0.001) and OS (HR 0.612, 95%CI 0.0.575-0.652, P<0.001) compared to those without RT. CONCLUSIONS: These data suggest that individual counseling is important for treatment decision-making in elderly breast cancer patients with T1-2N0 and ER-positive disease. Given the relatively lower toxicity of modern RT techniques, adjuvant RT should be recommended in patients with high life expectancy. Frontiers Media S.A. 2022-11-23 /pmc/articles/PMC9727219/ /pubmed/36505844 http://dx.doi.org/10.3389/fonc.2022.917054 Text en Copyright © 2022 Yang, Tan, Zhou, Lian, Wu and He https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Oncology
Yang, Shi-Ping
Tan, Lu-Lu
Zhou, Ping
Lian, Chen-Lu
Wu, San-Gang
He, Zhen-Yu
The addition of radiotherapy to breast-conserving surgery improves survival for elderly patients with early breast cancer
title The addition of radiotherapy to breast-conserving surgery improves survival for elderly patients with early breast cancer
title_full The addition of radiotherapy to breast-conserving surgery improves survival for elderly patients with early breast cancer
title_fullStr The addition of radiotherapy to breast-conserving surgery improves survival for elderly patients with early breast cancer
title_full_unstemmed The addition of radiotherapy to breast-conserving surgery improves survival for elderly patients with early breast cancer
title_short The addition of radiotherapy to breast-conserving surgery improves survival for elderly patients with early breast cancer
title_sort addition of radiotherapy to breast-conserving surgery improves survival for elderly patients with early breast cancer
topic Oncology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9727219/
https://www.ncbi.nlm.nih.gov/pubmed/36505844
http://dx.doi.org/10.3389/fonc.2022.917054
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