Comparative efficacy of intraoperative radiotherapy and external boost irradiation in early-stage breast cancer: a systematic review and meta-analysis

External boost radiotherapy (EBRT) and intraoperative radiotherapy (IORT) are shown to be effective in patients with early-stage breast cancer. However, the difference between IORT and EBRT for patients’ prognosis remains to be elucidated. The purpose of this meta-analysis is to investigate differen...

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Main Authors: Jiaxin Liu, Xiaowei Shi, Zhenbo Niu, Cheng Qian
Format: Article
Language:English
Published: PeerJ Inc. 2023-09-01
Series:PeerJ
Subjects:
Online Access:https://peerj.com/articles/15949.pdf
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author Jiaxin Liu
Xiaowei Shi
Zhenbo Niu
Cheng Qian
author_facet Jiaxin Liu
Xiaowei Shi
Zhenbo Niu
Cheng Qian
author_sort Jiaxin Liu
collection DOAJ
description External boost radiotherapy (EBRT) and intraoperative radiotherapy (IORT) are shown to be effective in patients with early-stage breast cancer. However, the difference between IORT and EBRT for patients’ prognosis remains to be elucidated. The purpose of this meta-analysis is to investigate differences in local recurrence (LR), distant metastases, disease free survival (DFS), and overall survival (OS) between these two therapies. We searched the Cochrane Library, PubMed, Web of Science and Embase, from inception to Jan 10th, 2022. We used The Cochrane risk-of-bias assessment tool to assess the risk of bias of the included studies, and the STATA15.0 tool was used for the meta-analyses. Eight studies were ultimately included. Meta-analysis demonstrated that there was an inconsistent finding in the long-term risk of LR between the two radiotherapies, and there was no significant difference in short-term risk of LR, the metastasis rate, DFS, and OS IORT would be more convenient, less time-consuming, less costly, and more effective at reducing side effects and toxicity. However, these benefits must be balanced against the potential for increased risk of LR in the long term.
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spelling doaj.art-dedda2093b5747ea92ab05c6e530f0c22023-12-02T23:38:22ZengPeerJ Inc.PeerJ2167-83592023-09-0111e1594910.7717/peerj.15949Comparative efficacy of intraoperative radiotherapy and external boost irradiation in early-stage breast cancer: a systematic review and meta-analysisJiaxin Liu0Xiaowei Shi1Zhenbo Niu2Cheng Qian3Xiamen Hospital, Fudan University Shanghai Cancer Center, Xiamen, ChinaXiamen Hospital, Fudan University Shanghai Cancer Center, Xiamen, ChinaAffiliated Cancer Hospital of Harbin Medical University, Harbin, ChinaAffiliated Cancer Hospital of Harbin Medical University, Harbin, ChinaExternal boost radiotherapy (EBRT) and intraoperative radiotherapy (IORT) are shown to be effective in patients with early-stage breast cancer. However, the difference between IORT and EBRT for patients’ prognosis remains to be elucidated. The purpose of this meta-analysis is to investigate differences in local recurrence (LR), distant metastases, disease free survival (DFS), and overall survival (OS) between these two therapies. We searched the Cochrane Library, PubMed, Web of Science and Embase, from inception to Jan 10th, 2022. We used The Cochrane risk-of-bias assessment tool to assess the risk of bias of the included studies, and the STATA15.0 tool was used for the meta-analyses. Eight studies were ultimately included. Meta-analysis demonstrated that there was an inconsistent finding in the long-term risk of LR between the two radiotherapies, and there was no significant difference in short-term risk of LR, the metastasis rate, DFS, and OS IORT would be more convenient, less time-consuming, less costly, and more effective at reducing side effects and toxicity. However, these benefits must be balanced against the potential for increased risk of LR in the long term.https://peerj.com/articles/15949.pdfIntraoperative radiation therapyExternal irradiation therapyBreast cancerMeta-analysisRCT
spellingShingle Jiaxin Liu
Xiaowei Shi
Zhenbo Niu
Cheng Qian
Comparative efficacy of intraoperative radiotherapy and external boost irradiation in early-stage breast cancer: a systematic review and meta-analysis
PeerJ
Intraoperative radiation therapy
External irradiation therapy
Breast cancer
Meta-analysis
RCT
title Comparative efficacy of intraoperative radiotherapy and external boost irradiation in early-stage breast cancer: a systematic review and meta-analysis
title_full Comparative efficacy of intraoperative radiotherapy and external boost irradiation in early-stage breast cancer: a systematic review and meta-analysis
title_fullStr Comparative efficacy of intraoperative radiotherapy and external boost irradiation in early-stage breast cancer: a systematic review and meta-analysis
title_full_unstemmed Comparative efficacy of intraoperative radiotherapy and external boost irradiation in early-stage breast cancer: a systematic review and meta-analysis
title_short Comparative efficacy of intraoperative radiotherapy and external boost irradiation in early-stage breast cancer: a systematic review and meta-analysis
title_sort comparative efficacy of intraoperative radiotherapy and external boost irradiation in early stage breast cancer a systematic review and meta analysis
topic Intraoperative radiation therapy
External irradiation therapy
Breast cancer
Meta-analysis
RCT
url https://peerj.com/articles/15949.pdf
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