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Whole‐brain radiotherapy vs. Localized radiotherapy after resection of brain metastases in the era of targeted therapy: A retrospective study

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dc.contributor.authorKoo, J-
dc.contributor.authorRoh, TH-
dc.contributor.authorLee, SR-
dc.contributor.authorHeo, J-
dc.contributor.authorOh, YT-
dc.contributor.authorKim, SH-
dc.date.accessioned2022-12-26T00:39:06Z-
dc.date.available2022-12-26T00:39:06Z-
dc.date.issued2021-
dc.identifier.urihttp://repository.ajou.ac.kr/handle/201003/23465-
dc.description.abstractWhether targeted therapy (TT) and radiotherapy impact survival after resection of brain metastases (BM) is unknown. The purpose of this study was to analyze the factors affecting overall survival (OS), local control (LC), distant control (DC), and leptomeningeal metastases (LMM) in patients who had undergone resection of BM. We retrospectively analyzed 124 consecutive patients who had undergone resection of BM between 2004 and 2020. Patient information about age, sex, Karnofsky Performance Scale (KPS), origin of cancer, synchronicity, tumor size, status of primary cancer, use of TT, extent of resection, and postoperative radiotherapy was collected. Radiation therapy was categorized into whole‐brain radiotherapy (WBRT), localized radiotherapy (local brain radiotherapy or stereotactic radiosurgery (LBRT/SRS)), and no radiation. We identified factors that affect OS, LC, DC, and LMM. In multivariable analysis, significant factors for OS were higher KPS score (≥90) (HR 0.53, p = 0.011), use of TT (HR 0.43, p = 0.001), controlled primary disease (HR 0.63, p = 0.047), and single BM (HR 0.55, p = 0.016). Significant factors for LC were gross total resection (HR 0.29, p = 0.014) and origin of cancer (p = 0.041). Both WBRT and LBRT/SRS showed superior LC than no radiation (HR 0.32, p = 0.034 and HR 0.38, p = 0.018, respectively). Significant factors for DC were use of TT (HR 0.54, p = 0.022) and single BM (HR 0.47, p = 0.004). Reduced incidence of LMM was associated with use of TT (HR 0.42, p = 0.038), synchronicity (HR 0.25, p = 0.028), and controlled primary cancer (HR 0.44, p = 0.047). TT was associated with prolonged OS, improved DC, and reduced LMM in resected BM patients. WBRT and LBRT/SRS showed similar benefits on LC. Consid-ering the extended survival of cancer patients and the long‐term effect of WBRT on cognitive func-tion, LBRT/SRS appears to be a good option after resection of BM.-
dc.language.isoen-
dc.titleWhole‐brain radiotherapy vs. Localized radiotherapy after resection of brain metastases in the era of targeted therapy: A retrospective study-
dc.typeArticle-
dc.identifier.pmid34572938-
dc.identifier.urlhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8472558/-
dc.subject.keywordBrain metastases-
dc.subject.keywordRadiosurgery-
dc.subject.keywordSurgery-
dc.subject.keywordSurvival-
dc.subject.keywordTargeted therapy-
dc.contributor.affiliatedAuthorRoh, TH-
dc.contributor.affiliatedAuthorHeo, J-
dc.contributor.affiliatedAuthorOh, YT-
dc.contributor.affiliatedAuthorKim, SH-
dc.type.localJournal Papers-
dc.identifier.doi10.3390/cancers13184711-
dc.citation.titleCancers-
dc.citation.volume13-
dc.citation.number18-
dc.citation.date2021-
dc.citation.startPage4711-
dc.citation.endPage4711-
dc.identifier.bibliographicCitationCancers, 13(18). : 4711-4711, 2021-
dc.identifier.eissn2072-6694-
dc.relation.journalidJ020726694-
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Neurosurgery
Journal Papers > School of Medicine / Graduate School of Medicine > Radiation Oncology
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