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Nguyen A, Nguyen A, Fleeting C, Patel A, Bazett N, Hey G, Mandavali A, Brown NJ, Woolridge M, Foreman M, Lucke-Wold B. An Evaluation of Risk Factors for Intracranial Metastases of Sarcomas: A Systematic Review and Meta-Analysis. World Neurosurg 2024; 187:e683-e699. [PMID: 38704144 DOI: 10.1016/j.wneu.2024.04.146] [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: 04/14/2024] [Accepted: 04/23/2024] [Indexed: 05/06/2024]
Abstract
INTRODUCTION Sarcomas, a group of neoplasms comprising both tissue and bone soft tissue tumors, has an increasing prevalence in recent years. Prognosis significantly hinges on early detection, and if not detected early, may consequently metastasize. This review will be the first systematic review and meta-analysis characterizing the presentation and progression of brain metastases from bone and soft tissue cancers. METHODS The PubMed, Scopus, and Web of Science databases were queried to identify studies reporting the incidence of intracranial brain metastases from primary sarcoma to the present. Abstract and full-text screening of 1822 initial articles returned by preliminary search yielded 28 studies for inclusion and data extraction. Qualitative assessment of the studies was conducted in accordance with the Newcastle-Ottawa Scale criteria. Meta-analyses were applied to assess risk factors on outcomes. RESULTS The average age within the cohort was 27.9 years with a male and female prevalence of 59.1% and 40.9%, respectively. The odds ratio for living status (dead/alive) was calculated for several risk factors - male/female [OR 1.14, 95% CI 0.62, 2.07], single/multiple metastases [OR 0.67, 95% CI 0.35, 1.28], lung metastases/not [OR 1.63, 95% CI 0.85, 3.13], surgery/no surgery [OR 0.49, 95% CI 0.20, 1.21]. The standardized mean differences for duration from diagnoses to metastases were likewise analyzed - male/female [SMD 0.13, 95% CI -0.15, 0.42], single/multiple metastases [SMD 0.11, 95% CI -0.20, 0.42], lung metastases/not [SMD -0.03, 95% CI -0.38, 0.32], surgery/no surgery [SMD 0.45, 95% CI -0.18, 1.09]. The standardized mean differences for duration from metastases to death were analyzed - lung metastases/not [SMD 0.43, 95% CI -0.08, 0.95]. CONCLUSIONS Our study observed no statistically significant differences in mortality rate among several patient risk factors. Consequentially, there lacks a clear answer as to whether or not an association between mortality rates exists with these patient factors. As such, it is important to continue research in brain-metastasizing sarcomas despite their relative rarity.
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Affiliation(s)
| | - Andrew Nguyen
- College of Medicine, University of Florida, Gainesville, Florida, USA.
| | - Chance Fleeting
- College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Aashay Patel
- College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Nicholas Bazett
- College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Grace Hey
- College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Akhil Mandavali
- School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - Nolan J Brown
- Department of Neurosurgery, University of California-Irvine, Orange, California, USA
| | - Maxwell Woolridge
- College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Marco Foreman
- College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Brandon Lucke-Wold
- Department of Neurosurgery, University of Florida, Gainesville, Florida, USA
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Ribeiro LM, Bomtempo FF, Rocha RB, Telles JPM, Neto EB, Figueiredo EG. Development and adaptations of the Graded Prognostic Assessment (GPA) scale: a systematic review. Clin Exp Metastasis 2023; 40:445-463. [PMID: 37819546 DOI: 10.1007/s10585-023-10237-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 09/22/2023] [Indexed: 10/13/2023]
Abstract
The Graded Prognostic Assessment (GPA) score has the best accuracy among prognostic scales for patients with brain metastases (BM). A wide range of GPA-derived scales have been established to different types of primary tumor BM. However, there is a high variability between them, and their characteristics have not been described altogether yet. We aim to summarize the features of the existent GPA-derived scales and to compare their predictor factors and their uses in clinical setting. Medline was searched from inception until January 2023 to identify studies related to the development, update, or validation of GPA. The initial search yielded 1,083 results. 16 original studies and 16 validation studies were included, comprising a total of 33,348 patients. 13 different scales were assessed, including: GPA, Diagnosis-Specific GPA, Extracranial Score, Lung-molGPA, Updated Renal GPA, Updated Gastrointestinal GPA, Modified Breast GPA, Integrated Melanoma GPA, Melanoma Mol GPA, Sarcoma GPA, Hepatocellular Carcinoma GPA, Colorectal Cancer GPA, and Uterine Cancer GPA. The most prevalent prognostic predictors were age, Karnofsky Performance Status, number of BM, and presence or absence of extracranial metastases. Treatment modalities consisted of whole brain radiation therapy, stereotactic radiosurgery, surgery, cranial radiotherapy, gamma knife radiosurgery, and BRAF inhibitor therapy. Median survival rates with no treatment and with a specific treatment ranged from 6.1 weeks to 33 months and from 3.1 to 21 months, respectively. Original GPA and GPA-derived scales are valid prognostic tools, but with heterogeneous survival results when compared to each other. More studies are needed to improve scientific evidence of these scales.
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Affiliation(s)
| | | | | | | | - Eliseu Becco Neto
- Division of Neurosurgery, University of São Paulo, São Paulo, Brazil
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Jędrys W, Leśniak A, Borkowska A, Rutkowski P, Sobczuk P. Brain metastases of sarcoma: a rare phenomenon in rare tumours. J Cancer Res Clin Oncol 2023; 149:18271-18281. [PMID: 37994983 PMCID: PMC10725339 DOI: 10.1007/s00432-023-05451-1] [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: 07/25/2023] [Accepted: 09/29/2023] [Indexed: 11/24/2023]
Abstract
The usual site for distant metastases of sarcoma is lungs, while brain metastasis (BM) occurs much less frequently and usually late in the disease progression. Despite the advancement in cancer treatment, the outcome for patients with brain metastasis is poor, and their lifespan is short. The frequency of BM in sarcoma seems to be affected by the location and histology of the primary tumour. Sarcoma subtypes with a high propensity for brain metastasis are ASPS, leiomyosarcoma and osteosarcoma. There are no clear guidelines for the treatment of sarcoma brain metastasis. However, therapeutic options include surgery, radiotherapy and chemotherapy, and are often combined. Targeted therapies are a promising treatment option for sarcoma but require investigation in patients with BM. The following review presents the data on sarcoma brain metastasis incidence, treatment and prognosis.
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Affiliation(s)
- Wiktoria Jędrys
- Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Skłodowska-Curie National Research Institute of Oncology in Warsaw, Warsaw, Poland
- Faculty of Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Aleksandra Leśniak
- Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Skłodowska-Curie National Research Institute of Oncology in Warsaw, Warsaw, Poland
- Faculty of Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Aneta Borkowska
- Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Skłodowska-Curie National Research Institute of Oncology in Warsaw, Warsaw, Poland
| | - Piotr Rutkowski
- Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Skłodowska-Curie National Research Institute of Oncology in Warsaw, Warsaw, Poland
| | - Paweł Sobczuk
- Department of Soft Tissue/Bone Sarcoma and Melanoma, Maria Skłodowska-Curie National Research Institute of Oncology in Warsaw, Warsaw, Poland.
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Gagliardi F, De Domenico P, Snider S, Nizzola MG, Mortini P. Efficacy of neoadjuvant stereotactic radiotherapy in brain metastases from solid cancer: a systematic review of literature and meta-analysis. Neurosurg Rev 2023; 46:130. [PMID: 37256368 DOI: 10.1007/s10143-023-02031-2] [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: 09/19/2022] [Revised: 04/18/2023] [Accepted: 05/08/2023] [Indexed: 06/01/2023]
Abstract
Neoadjuvant stereotactic radiotherapy (NaSRT) is a novel strategy for brain metastasis (BM) treatment, promising to achieve good local control, improved survival, and low toxicity. This is a systematic review of available literature and meta-analysis of 8 articles eligible for inclusion after searching MEDLINE via PubMed, Web-of-science, Cochrane Wiley, and Embase databases up to March 2023. A total of 484 patients undergoing NaSRT to treat 507 lesions were included. The median age was 60.9 (IQR 57-63) years, with a median tumor volume of 12.1 (IQR 9-14) cm3. The most frequent histology was non-small-cell lung cancer (41.3%), followed by breast (18.8%), and melanoma (14.3%). Lesions had a preferred supratentorial location (77.4%). Most of the studies used a single fraction schedule (91% of patients, n = 440). Treatment parameters were homogeneous and showed a median dose of 18 (IQR 15.5-20.5) Gy at a median of 80% isodose. Surgery was performed after a median of 1.5 (IQR 1-2.4) days and achieved gross-total extent in 94% of cases. Median follow-up was 12.9 (IQR 10-15.7) months. NaSRT showed an overall mortality rate of 58% (95% CI 43-73) at the last follow-up. Actuarial outcomes rates were 60% (95% CI 55-64) for 1-year overall survival (1y-OS), 38% (95% CI 33-43) for 2y-OS, 29% (95% CI 24-34) for 3y-OS; overall 15% (95% CI 11-19) for local failure, 46% (95% CI 37-55) for distant brain failure, 6% (95% CI 3-8) for radionecrosis, and 5% (95% CI 3-8) for leptomeningeal dissemination. The median local progression-free survival time was 10.4 (IQR 9.5-11.4) months, while the median survival without distant failure was 7.4 (IQR 6.9-8) months. The median OS time for the entire cohort was 17 (IQR 14.9-17.9) months. Existing data suggest that NaSRT is effective and safe in the treatment of BMs, achieving good local control on BMs with and low incidence of radionecrosis and leptomeningeal dissemination. Distant control appears limited compared to other radiation regimens.
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Affiliation(s)
- Filippo Gagliardi
- Department of Neurosurgery and Gamma Knife Radiosurgery, San Raffaele Scientific Institute, Vita-Salute University, Via Olgettina, 60, 20132, Milan, Italy.
| | - Pierfrancesco De Domenico
- Department of Neurosurgery and Gamma Knife Radiosurgery, San Raffaele Scientific Institute, Vita-Salute University, Via Olgettina, 60, 20132, Milan, Italy
| | - Silvia Snider
- Department of Neurosurgery and Gamma Knife Radiosurgery, San Raffaele Scientific Institute, Vita-Salute University, Via Olgettina, 60, 20132, Milan, Italy
| | - Maria Grazia Nizzola
- Department of Neurosurgery and Gamma Knife Radiosurgery, San Raffaele Scientific Institute, Vita-Salute University, Via Olgettina, 60, 20132, Milan, Italy
| | - Pietro Mortini
- Department of Neurosurgery and Gamma Knife Radiosurgery, San Raffaele Scientific Institute, Vita-Salute University, Via Olgettina, 60, 20132, Milan, Italy
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Toda Y, Kobayashi E, Kubota D, Miyakita Y, Narita Y, Kawai A. A retrospective analysis of the prognosis of Japanese patients with sarcoma brain metastasis. Cancer Med 2023; 12:9471-9481. [PMID: 36811144 PMCID: PMC10166921 DOI: 10.1002/cam4.5710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 02/02/2023] [Accepted: 02/08/2023] [Indexed: 02/24/2023] Open
Abstract
BACKGROUND Bone and soft tissue sarcomas are rare tumors and extremely rarely metastasize to the brain. Previous studies have examined the characteristics and poor prognostic factors in cases of sarcoma brain metastasis (BM). Due to the rarity of cases of BM from sarcoma, limited data exist concerning the prognostic factors and treatment strategies. METHODS A retrospective single-center study was performed on sarcoma patients with BM. The clinicopathological characteristics and treatment options for BM of sarcoma were investigated to identify predictive prognostic factors. RESULTS Between 2006 and 2021, 32 patients treated for newly diagnosed BM at our hospital were retrieved among 3133 bone and soft tissue sarcoma patients via our database. The most common symptom was headache (34%), and the most common histological subtypes were alveolar soft part sarcoma (ASPS) and undifferentiated pleomorphic sarcoma (25%). Non-ASPS (p = 0.022), presence of lung metastasis (p = 0.046), a short duration between initial metastasis, and the diagnosis of brain metastasis (p = 0.020), and the absence of stereotactic radiosurgery for BM (p = 0.0094) were significantly correlated with a poor prognosis. CONCLUSIONS In conclusion, the prognosis of patients with brain metastases of sarcomas is still dismal, but it is necessary to be aware of the factors associated with a relatively favorable prognosis and to select treatment options appropriately.
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Affiliation(s)
- Yu Toda
- Department of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Eisuke Kobayashi
- Department of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Daisuke Kubota
- Department of Medicine for Orthopaedics and Motor Organ, Juntendo University School of Medicine, Tokyo, Japan
| | - Yasuji Miyakita
- Department of Neurosurgery and Neuro-Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Yoshitaka Narita
- Department of Neurosurgery and Neuro-Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Akira Kawai
- Department of Musculoskeletal Oncology, National Cancer Center Hospital, Tokyo, Japan
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NAKAGAKI Y, KAI K, KOMOHARA Y, TAKEZAKI T, KURODA J, SHINOJIMA N, SHIMOMURA M, KAWAKAMI F, MIKAMI Y, MUKASA A. Gliosarcoma with Systemic Metastasis Showing Favorable Response to Ifosfamide, Carboplatin, and Etoposide Chemotherapy: An Autopsy Case Report. NMC Case Rep J 2022; 9:263-268. [PMID: 36186622 PMCID: PMC9484818 DOI: 10.2176/jns-nmc.2022-0075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 06/06/2022] [Indexed: 11/20/2022] Open
Abstract
Gliosarcoma is a rare malignant neoplasm. It accounts for approximately 2% of all glioblastomas. To date, there is no established treatment method for gliosarcoma, and a variety of therapies, such as surgical resection, radiotherapy, and chemotherapy, are typically employed. Here, we describe a patient with gliosarcoma who, despite multiple tumor metastases throughout the body, including the lungs and lymph nodes, achieved a relatively long survival due to salvage therapy with local irradiation and remarkably effective chemotherapy with low-dose ifosfamide, carboplatin, and etoposide therapy. When the patient died, we performed autopsy and confirmed the nature of the primary and metastatic tumor cells that had spread throughout the patient's body. Clinical and systemic histological studies also suggested the possibility of re-metastasis to the brain from systemic metastatic foci. Gliosarcoma appears to have characteristics similar to sarcoma as well as a higher risk of systemic metastasis. Therefore, a careful follow-up is necessary in such patients.
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Affiliation(s)
- Yuki NAKAGAKI
- Department of Neurosurgery, Graduate School of Medical Sciences, Kumamoto University
| | - Keitaro KAI
- Department of Neurosurgery, Graduate School of Medical Sciences, Kumamoto University
| | - Yoshihiro KOMOHARA
- Department of Cell Pathology, Graduate School of Medical Sciences, Kumamoto University
| | - Tatsuya TAKEZAKI
- Department of Neurosurgery, Graduate School of Medical Sciences, Kumamoto University
| | - Junichiro KURODA
- Department of Neurosurgery, Graduate School of Medical Sciences, Kumamoto University
| | - Naoki SHINOJIMA
- Department of Diagnostic Pathology, Graduate School of Medical Sciences, Kumamoto University
| | - Mari SHIMOMURA
- Department of Diagnostic Pathology, Graduate School of Medical Sciences, Kumamoto University
| | - Fumi KAWAKAMI
- Department of Diagnostic Pathology, Graduate School of Medical Sciences, Kumamoto University
| | - Yoshiki MIKAMI
- Department of Diagnostic Pathology, Graduate School of Medical Sciences, Kumamoto University
| | - Akitake MUKASA
- Department of Neurosurgery, Graduate School of Medical Sciences, Kumamoto University
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Wang Y, Delisle M, Smith D, Alshamsan B, Srikanthan A. Clinical outcomes of brain metastasectomy from soft tissue and bone sarcomas: a systematic review. Int J Clin Oncol 2022; 27:1767-1779. [PMID: 35994183 DOI: 10.1007/s10147-022-02227-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 07/31/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Brain metastasis in sarcomas is associated with a poor prognosis. Data regarding prognostic factors and clinical outcomes of surgical resection of brain metastasis from sarcomas are limited. The objective of this systematic review was to evaluate survival outcomes post-brain metastasectomy for patients with soft tissue and bone sarcomas. METHODS A systematic review was conducted examining survival outcomes among adults and children with soft tissue and bone sarcoma undergoing brain metastasectomy, in the English language from inception up to May 31, 2021. Two reviewers independently evaluated and screened the literature, extracted the data, and graded the included studies. The body of evidence was evaluated and graded according to the Newcastle-Ottawa Quality Assessment Scale for Cohort Studies and the Joanna Briggs Institute Critical Appraisal Checklist for Case Series. Results were synthesized using descriptive methods. A meta-analysis was not possible due to the low quality and heterogeneity of studies. RESULTS Ten studies published between 1994 and 2020 were included: three were retrospective cohort studies and seven were case series. 507 patients were included, of whom 269 underwent brain metastasectomy. The median follow-up period ranged between 14 and 29 months. The median survival period after metastasectomy ranged from 7 to 25 months. The most common prognostic factors associated with survival included presenting performance status, age, number of brain metastases, presence of lung metastases, and peri-operative radiation therapy administration. DISCUSSION Although the level of evidence is low, retrospective studies support that brain metastasectomy can be performed with reasonable post-operative survival in selected individuals.
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Affiliation(s)
- Ying Wang
- Division of Medical Oncology, Department of Medicine, University of British Columbia, Vancouver, BC, V5Z 4E6, Canada
| | - Megan Delisle
- Division of Surgery, The Ottawa Hospital, Ottawa, ON, K1H8L6, Canada
| | - Denise Smith
- McMaster University, Health Sciences Library, 1280 Main Street West, Hamilton, ON, L8S 4L8, Canada
| | - Bader Alshamsan
- Division of Medical Oncology, Department of Medicine, University of Ottawa, Ottawa, ON, K1H 8L6, Canada.,Department of Medicine, College of Medicine, Qassim University, Buraydah, Saudi Arabia
| | - Amirrtha Srikanthan
- Division of Medical Oncology, Department of Medicine, University of Ottawa, Ottawa, ON, K1H 8L6, Canada. .,Department of Medicine, Division of Medical Oncology, The Ottawa Hospital Cancer Centre, 501 Smyth Road, Ottawa, ON, K1H 8L6, Canada. .,Ottawa Hospital Research Institute, Ottawa, ON, K1Y4E9, Canada.
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Metastasectomy in Leiomyosarcoma: A Systematic Review and Pooled Survival Analysis. Cancers (Basel) 2022; 14:cancers14133055. [PMID: 35804827 PMCID: PMC9264936 DOI: 10.3390/cancers14133055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 06/20/2022] [Accepted: 06/20/2022] [Indexed: 12/10/2022] Open
Abstract
Simple Summary Leiomyosarcoma (LMS) is an aggressive soft tissue sarcoma with a poor prognosis. Approximately 40% of patients will develop metastatic disease. The optimal treatment for patients with metastatic LMS is not well established, and there are no randomized controlled trials regarding metastasectomy. This systematic review and pooled survival analysis aims to assess the survival in patients undergoing a metastasectomy for LMS and compare the outcomes based on the site of metastasectomy. We identified that patients with LMS metastases in the lungs, liver, spine, and brain can undergo metastasectomy with acceptable survival. Two studies have compared survival outcomes between patients treated and not treated with metastasectomy; despite their low quality, these studies support a survival benefit associated with metastasectomy. Abstract This study assesses the survival in patients undergoing metastasectomy for leiomyosarcoma (LMS) and compares the outcomes by the site of metastasectomy. We conducted a systematic review and pooled survival analysis of patients undergoing metastasectomy for LMS. Survival was compared between sites of metastasectomy. We identified 23 studies including 573 patients undergoing metastasectomy for LMS. The pooled median survival was 59.6 months (95% CI 33.3 to 66.0). The pooled median survival was longest for lung metastasectomy (72.8 months 95% CI 63.0 to 82.5), followed by liver (34.8 months 95% CI 22.3 to 47.2), spine (14.1 months 95% CI 8.6 to 19.7), and brain (14 months 95% CI 6.7 to 21.3). Two studies compared the survival outcomes between patients who did, versus who did not undergo metastasectomy; both demonstrated a significantly improved survival with metastasectomy. We conclude that surgery is currently being utilized for LMS metastases to the lung, liver, spine, and brain with acceptable survival. Although low quality, comparative studies support a survival benefit with metastasectomy. In the absence of randomized studies, it is impossible to determine whether the survival benefit associated with metastasectomy is due to careful patient selection rather than a surgical advantage; limited data were included about patient selection.
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Neoadjuvant fractionated stereotactic radiotherapy followed by piecemeal resection of brain metastasis: a case series of 20 patients. Int J Clin Oncol 2021; 27:481-487. [PMID: 34796412 PMCID: PMC8882569 DOI: 10.1007/s10147-021-02083-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 11/10/2021] [Indexed: 11/27/2022]
Abstract
Background The safety and effectiveness of neoadjuvant fractionated stereotactic radiotherapy (FSRT) before piecemeal resection of brain metastasis (BM) remains unknown. Methods We retrospectively reviewed 20 consecutive patients with BM who underwent neoadjuvant FSRT followed by piecemeal resection between July 2019 and March 2021. The prescribed dose regimens were as follows: 30 Gy (n = 11) or 35 Gy (n = 9) in five fractions. Results The mean follow-up duration was 7.8 months (range 2.2–22.3). The median age was 67 years (range 51–79). Fourteen patients were male. All patients were symptomatic. All tumors were located in the supratentorial compartment. The median maximum diameter and volume were 3.7 cm (range 2.6–4.9) and 17.6 cm3 (range 5.6–49.7), respectively. The median time from the end of FSRT to resection was 4 days (range 1–7). Nausea (CTCAE Grade 2) occurred in one patient and simple partial seizures (Grade 2) in two patients during radiation therapy. Gross total removal was performed in seventeen patients and sub-total removal in three patients. Postoperative complications were deterioration of paresis in two patients. Local recurrence was found in one patient (5.0%) who underwent sub-total resection at 2 months after craniotomy. Distant recurrence was found in six patients (30.0%) at a median of 6.9 months. Leptomeningeal disease recurrence was found in one patient (5.0%) at 3 months. No radiation necrosis developed. Conclusions Neoadjuvant FSRT appears to be a safe and effective approach for patients with BM requiring piecemeal resection. A multi-institutional prospective trial is needed.
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