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Matsuda R, Hasegawa M, Tamamoto T, Inooka N, Morimoto T, Maeoka R, Nakazawa T, Ochi T, Miyasaka T, Hontsu S, Yamaki K, Miura S, Yamada S, Nishimura F, Nakagawa I, Park YS, Nakase H. Clinical Results and Hematologic Predictors of Linear Accelerator-Based Stereotactic Radiosurgery or Fractionated Stereotactic Radiotherapy for Brain Metastasis in Patients Aged 75 Years or Older: A Retrospective Study. World Neurosurg 2024; 183:e944-e952. [PMID: 38244685 DOI: 10.1016/j.wneu.2024.01.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 01/11/2024] [Accepted: 01/12/2024] [Indexed: 01/22/2024]
Abstract
OBJECTIVE This study aimed to evaluate prognostic factors including pre-radiosurgical blood count in elderly patients (EPs) with brain metastasis (BM) who were treated using linear accelerator (LINAC)-based stereotactic radiosurgery (SRS) and fractionated stereotactic radiotherapy (fSRT) with a micro-multileaf collimator. METHODS Between January 2011 and November 2021, 101 consecutive EPs with BM were treated by LINAC-based SRS or fSRT using LINAC with a micro-multileaf collimator. EPs were defined as patients aged ≥75 years. RESULTS The tumors originated from the lungs (n = 90; 89.1%), colon (n = 2; 2.0%), and others (n = 9; 8.8%) in these EPs. The median pretreatment Karnofsky Performance Status was 80 (range, 40-100). The median follow-up time was 10 months (range, 0-76), as was the median survival. The 6-month, 1-year, and 2-year survival in the EP group was 58.3%, 43.2%, and 28.5%, respectively. Freedom from local failure at 6 months and 1 and 2 years was 97%, 95%, and 91.5%, respectively. Freedom from distant failure at 6 months and 1 and 2 years in EPs was 70.6%, 59.4%, and 54.2%, respectively. A high neutrophil/lymphocyte ratio >5.33 was an unfavorable predictor of prognosis for EPs with BMs treated with SRS and fSRT (P < 0.001). In the EPs, the prognostic factors associated with prolonged survival in the Cox proportional hazards model were being female and a good pretreatment Karnofsky Performance Status. CONCLUSIONS The findings of our study highlight the efficacy of LINAC-based SRS and fSRT with a micro-multileaf collimator in the treatment of EPs with BMs. Neutrophil/lymphocyte ratio can be an important factor in treatment decisions for EPs with BMs.
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Affiliation(s)
- Ryosuke Matsuda
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan.
| | - Masatoshi Hasegawa
- Department of Radiation Oncology, Nara Medical University, Kashihara, Nara, Japan
| | - Tetsuro Tamamoto
- Department of Radiation Oncology, Nara Medical University, Kashihara, Nara, Japan; Department of Medical Informatics, Nara Medical University Hospital, Kashihara, Nara, Japan
| | - Nobuyoshi Inooka
- Department of Radiation Oncology, Nara Medical University, Kashihara, Nara, Japan
| | - Takayuki Morimoto
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Ryosuke Maeoka
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Tsutomu Nakazawa
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Tomoko Ochi
- Department of Respiratory Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Toshiteru Miyasaka
- Department of Respiratory Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Shigeto Hontsu
- Department of Respiratory Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Kaori Yamaki
- Department of Radiation Oncology, Nara Medical University, Kashihara, Nara, Japan
| | - Sachiko Miura
- Department of Radiation Oncology, Nara Medical University, Kashihara, Nara, Japan
| | - Shuichi Yamada
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Fumihiko Nishimura
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Ichiro Nakagawa
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
| | - Hiroyuki Nakase
- Department of Neurosurgery, Nara Medical University, Kashihara, Nara, Japan
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Koo J, Roh TH, Lee SR, Heo J, Oh YT, Kim SH. Whole-Brain Radiotherapy vs. Localized Radiotherapy after Resection of Brain Metastases in the Era of Targeted Therapy: A Retrospective Study. Cancers (Basel) 2021; 13:cancers13184711. [PMID: 34572938 PMCID: PMC8472558 DOI: 10.3390/cancers13184711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/10/2021] [Accepted: 09/17/2021] [Indexed: 11/30/2022] Open
Abstract
Simple Summary The paradigm shift from cytotoxic chemotherapy to molecular targeted therapy dramatically improved the survival and quality of life of cancer patients. In radio-oncological aspects, there also was a paradigm shift from whole-brain radiotherapy to localized radiotherapy including stereotactic radiosurgery. This retrospective study analyzed 124 consecutive patients who had undergone surgical resection of brain metastases. We found targeted therapies to improve overall survival and distant control with decreased incidence of leptomeningeal metastasis. Our data suggest that localized radiotherapy is sufficient after resection of brain metastases when systemic targeted therapy is available. Abstract Whether 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. Considering the extended survival of cancer patients and the long-term effect of WBRT on cognitive function, LBRT/SRS appears to be a good option after resection of BM.
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Affiliation(s)
- Jaho Koo
- Gamma Knife Center, Brain Tumor Center, Department of Neurosurgery, Ajou University Hospital, Ajou University School of Medicine, Suwon 16499, Korea; (J.K.); (S.R.L.); (S.-H.K.)
| | - Tae Hoon Roh
- Gamma Knife Center, Brain Tumor Center, Department of Neurosurgery, Ajou University Hospital, Ajou University School of Medicine, Suwon 16499, Korea; (J.K.); (S.R.L.); (S.-H.K.)
- Correspondence:
| | - Sang Ryul Lee
- Gamma Knife Center, Brain Tumor Center, Department of Neurosurgery, Ajou University Hospital, Ajou University School of Medicine, Suwon 16499, Korea; (J.K.); (S.R.L.); (S.-H.K.)
| | - Jaesung Heo
- Brain Tumor Center, Department of Radiation Oncology, Ajou University Hospital, Ajou University School of Medicine, Suwon 16499, Korea; (J.H.); (Y.-T.O.)
| | - Young-Taek Oh
- Brain Tumor Center, Department of Radiation Oncology, Ajou University Hospital, Ajou University School of Medicine, Suwon 16499, Korea; (J.H.); (Y.-T.O.)
| | - Se-Hyuk Kim
- Gamma Knife Center, Brain Tumor Center, Department of Neurosurgery, Ajou University Hospital, Ajou University School of Medicine, Suwon 16499, Korea; (J.K.); (S.R.L.); (S.-H.K.)
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