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Sun Y, Liu P, Wang Z, Zhang H, Xu Y, Hu S, Yan Y. Efficacy and indications of gamma knife radiosurgery for recurrent low-and high-grade glioma. BMC Cancer 2024; 24:37. [PMID: 38183008 PMCID: PMC10768340 DOI: 10.1186/s12885-023-11772-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 12/17/2023] [Indexed: 01/07/2024] Open
Abstract
PURPOSE To investigate the indications and efficacy of gamma knife radiosurgery (GKRS) as a salvage treatment for recurrent low-and high-grade glioma. METHODS This retrospective study of 107 patients with recurrent glioma treated with GKRS between 2009 and 2022, including 68 high-grade glioma (HGG) and 39 low-grade glioma (LGG) cases. The Kaplan-Meier method was used to calculate the overall survival (OS) and progression-free survival (PFS). The log-rank test was used to analyze the multivariate prognosis of the Cox proportional hazards model. Adverse reactions were evaluated according to the Common Terminology Criteria for Adverse Events version 4.03. The prognostic value of main clinical features was estimated, including histopathology, Karnofsky performance status (KPS), recurrence time interval, target location, two or more GKRS, surgery for recurrence, site of recurrence, left or right side of the brain and so on. RESULTS The median follow-up time was 74.5 months. The median OS and PFS were 17.0 months and 5.5 months for all patients. The median OS and PFS were 11.0 months and 5.0 months for HGG, respectively. The median OS and PFS were 49.0 months and 12.0 months for LGG, respectively. Multivariate analysis showed that two or more GKRS, left or right side of the brain and brainstem significantly affected PFS. Meanwhile, the KPS index, two or more GKRS, pathological grade, and brainstem significantly affected OS. Stratified analysis showed that surgery for recurrence significantly affected OS and PFS for LGG. KPS significantly affected OS and PFS for HGG. No serious adverse events were noted post-GKRS. CONCLUSION GKRS is a safe and effective salvage treatment for recurrent glioma. Moreover, it can be applied after multiple recurrences with tolerable adverse effects.
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Affiliation(s)
- Ying Sun
- Department of Radiation Oncology, General Hospital of Northern Theater Command, 110016, Shenyang, China
| | - Peiru Liu
- Beifang Hospital of China Medical University, 110016, Shenyang, China
| | - Zixi Wang
- Graduate School of Dalian Medical University, 116000, Dalian, China
| | - Haibo Zhang
- Department of Radiation Oncology, General Hospital of Northern Theater Command, 110016, Shenyang, China
| | - Ying Xu
- Department of Radiation Oncology, General Hospital of Northern Theater Command, 110016, Shenyang, China
| | - Shenghui Hu
- Department of Radiation Oncology, General Hospital of Northern Theater Command, 110016, Shenyang, China
| | - Ying Yan
- Department of Radiation Oncology, General Hospital of Northern Theater Command, 110016, Shenyang, China.
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Gregucci F, Di Guglielmo FC, Surgo A, Carbonara R, Laera L, Ciliberti MP, Gentile MA, Calbi R, Caliandro M, Sasso N, Davi' V, Bonaparte I, Fanelli V, Giraldi D, Tortora R, Internò V, Giuliani F, Surico G, Signorelli F, Lombardi G, Fiorentino A. Reirradiation with radiosurgery or stereotactic fractionated radiotherapy in association with regorafenib in recurrent glioblastoma. Strahlenther Onkol 2023:10.1007/s00066-023-02172-9. [PMID: 37987802 DOI: 10.1007/s00066-023-02172-9] [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: 06/27/2023] [Accepted: 10/01/2023] [Indexed: 11/22/2023]
Abstract
PURPOSE No standard treatment has yet been established for recurrent glioblastoma (GBM). In this context, the aim of the current study was to evaluate safety and efficacy of reirradiation (re-RT) by radiosurgery or fractionated stereotactic radiotherapy (SRS/FSRT) in association with regorafenib. METHODS Patients with a histological or radiological diagnosis of recurrent GBM who received re-RT by SRS/FSRT and regorafenib as second-line systemic therapy were included in the analysis. RESULTS From January 2020 to December 2022, 21 patients were evaluated. The median time between primary/adjuvant RT and disease recurrence was 8 months (range 5-20). Median re-RT dose was 24 Gy (range 18-36 Gy) for a median number of 5 fractions (range 1-6). Median regorafenib treatment duration was 12 weeks (range 3-26). Re-RT was administered before starting regorafenib or in the week off regorafenib during the course of chemotherapy. The median and the 6‑month overall survival (OS) from recurrence were 8.4 months (95% confidence interval [CI] 6.9-12.7 months) and 75% (95% CI 50.9-89.1%), respectively. The median progression-free survival (PFS) from recurrence was 6 months (95% CI 3.7-8.5 months). The most frequent side effects were asthenia that occurred in 10 patients (8 cases of grade 2 and 2 cases of grade 3), and hand-foot skin reaction (2 patients grade 3, 3 patients grade 2). Adverse events led to permanent regorafenib discontinuation in 2 cases, while in 5/21 cases (23.8%), a dose reduction was administered. One patient experienced dehiscence of the surgical wound after reintervention and during regorafenib treatment, while another patient reported intestinal perforation that required hospitalization. CONCLUSION For recurrent GBM, re-RT with SRT/FSRT plus regorafenib is a safe treatment. Prospective trials are necessary.
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Affiliation(s)
- Fabiana Gregucci
- Department of Radiation Oncology, Miulli General Regional Hospital, Acquaviva delle Fonti-Bari, Italy.
| | | | - Alessia Surgo
- Department of Radiation Oncology, Miulli General Regional Hospital, Acquaviva delle Fonti-Bari, Italy
| | - Roberta Carbonara
- Department of Radiation Oncology, Miulli General Regional Hospital, Acquaviva delle Fonti-Bari, Italy
| | - Letizia Laera
- Department of Medical Oncology, Miulli General Regional Hospital, Acquaviva delle Fonti-Bari, Italy
| | - Maria Paola Ciliberti
- Department of Radiation Oncology, Miulli General Regional Hospital, Acquaviva delle Fonti-Bari, Italy
| | | | - Roberto Calbi
- Department of Radiology, Miulli General Regional Hospital, Acquaviva delle Fonti-Bari, Italy
| | - Morena Caliandro
- Department of Radiation Oncology, Miulli General Regional Hospital, Acquaviva delle Fonti-Bari, Italy
| | - Nicola Sasso
- Department of Medical Oncology, Miulli General Regional Hospital, Acquaviva delle Fonti-Bari, Italy
| | - Valerio Davi'
- Department of Radiation Oncology, Miulli General Regional Hospital, Acquaviva delle Fonti-Bari, Italy
| | - Ilaria Bonaparte
- Department of Radiation Oncology, Miulli General Regional Hospital, Acquaviva delle Fonti-Bari, Italy
| | - Vincenzo Fanelli
- Department of Neurosurgery, Miulli General Regional Hospital, Acquaviva delle Fonti-Bari, Italy
| | - David Giraldi
- Department of Neurosurgery, Miulli General Regional Hospital, Acquaviva delle Fonti-Bari, Italy
| | - Romina Tortora
- Centro Orientamento Oncologico (COrO), Miulli General Regional Hospital, Acquaviva delle Fonti-Bari, Italy
| | - Valeria Internò
- Department of Medical Oncology, Ospedale San Paolo, Bari, Italy
| | | | - Giammarco Surico
- Department of Medical Oncology, Miulli General Regional Hospital, Acquaviva delle Fonti-Bari, Italy
| | - Francesco Signorelli
- Division of Neurosurgery, Department of Translational Biomedicine and Neurosciences (DiBraiN), University "Aldo Moro" of Bari, Bari, Italy
| | - Giuseppe Lombardi
- Department of Medical Oncology, Oncology 1, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - Alba Fiorentino
- Department of Radiation Oncology, Miulli General Regional Hospital, Acquaviva delle Fonti-Bari, Italy
- Department of Medicine and Surgery, LUM University, Casamassima-Bari, Italy
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Park DJ, Persad AR, Yoo KH, Marianayagam NJ, Yener U, Tayag A, Ustrzynski L, Emrich SC, Chuang C, Pollom E, Soltys SG, Meola A, Chang SD. Stereotactic Radiosurgery for Contrast-Enhancing Satellite Nodules in Recurrent Glioblastoma: A Rare Case Series From a Single Institution. Cureus 2023; 15:e44455. [PMID: 37664337 PMCID: PMC10470661 DOI: 10.7759/cureus.44455] [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: 08/02/2023] [Accepted: 08/30/2023] [Indexed: 09/05/2023] Open
Abstract
Introduction Glioblastoma (GBM) is the most common malignant adult brain tumor and is invariably fatal. The standard treatment for GBM involves resection where possible, followed by chemoradiation per Stupp's protocol. We frequently use stereotactic radiosurgery (SRS) as a single-fraction treatment for small (volume ≤ 1cc) nodular recurrent GBM to the contrast-enhancing target on T1 MRI scan. In this paper, we aimed to evaluate the safety and efficacy of SRS for patients with contrast-enhancing satellite nodules in recurrent GBM. Methods This retrospective study analyzed the clinical and radiological outcomes of five patients who underwent CyberKnife (Accuray Inc., Sunnyvale, California) SRS at the institute between 2013 and 2022. Results From 96 patients receiving SRS for GBM, five (four males, one female; median age 53) had nine distinct new satellite lesions on MRI, separate from their primary tumor beds. Those nine lesions were treated with a median margin dose of 20 Gy in a single fraction. The three-, six, and 12-month local tumor control rates were 77.8%, 66.7%, and 26.7%, respectively. Median progression-free survival (PFS) was seven months, median overall survival following SRS was 10 months, and median overall survival (OS) was 35 months. Interestingly, the only lesion that did not show radiological progression was separate from the T2-fluid attenuated inversion recovery (FLAIR) signal of the main tumor. Conclusion Our SRS treatment outcomes for recurrent GBM satellite lesions are consistent with existing findings. However, in a unique case, a satellite nodule distinct from the primary tumor's T2-FLAIR signal and treated with an enlarged target volume showed promising control until the patient's demise. This observation suggests potential research avenues, given the limited strategies for 'multicentric' GBM lesions.
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Affiliation(s)
- David J Park
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, USA
| | - Amit R Persad
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, USA
| | - Kelly H Yoo
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, USA
| | | | - Ulas Yener
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, USA
| | - Armine Tayag
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, USA
| | - Louisa Ustrzynski
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, USA
| | - Sara C Emrich
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, USA
| | - Cynthia Chuang
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, USA
| | - Erqi Pollom
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, USA
| | - Scott G Soltys
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, USA
| | - Antonio Meola
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, USA
| | - Steven D Chang
- Department of Neurosurgery, Stanford University School of Medicine, Stanford, USA
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Mantica M, Drappatz J, Lieberman F, Hadjipanayis CG, Lunsford LD, Niranjan A. Phase II study of border zone stereotactic radiosurgery with bevacizumab in patients with recurrent or progressive glioblastoma multiforme. J Neurooncol 2023; 164:179-190. [PMID: 37515669 DOI: 10.1007/s11060-023-04398-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 07/14/2023] [Indexed: 07/31/2023]
Abstract
PURPOSE Recurrent glioblastoma is universally fatal with limited effective treatment options. The aim of this phase 2 study of Border Zone SRS plus bevacizumab was to evaluate OS in patients with recurrent GBM. METHODS Patients with histologically confirmed GBM with recurrent disease who had received prior first-line treatment with fractionated radiotherapy and chemotherapy and eligible for SRS were enrolled. Bevacizumab 10 mg/kg was given day -1, day 14, and then every 14 days until disease progression. 1-14 days before BZ-SRS procedure, patients underwent brain MRI /MRS. MRS with measurement of choline-to-N-acetyl aspartate index (CNI) area ≥ 3 was targeted for SRS. RESULTS From 2015-2017, sixteen of planned 40 patients were enrolled. The median age was 62 (range, 48-74Y). 3/16 (0.188) participants experienced grade 2 toxicity. No AREs were reported. The mOS was 11.73 months compared to 8.74 months (P = 0.324) from date of SRS for the BZ-SRS and institutional historical controls, respectively. PFS-6 and OS-6 were 31.2% (p = 0.00294) and 81.2%(p = 0.058), respectively. Of 13 evaluable for best response: 1 CR (p = 0.077), 4 PR (p = 0.308), 7 SD (p = 0.538), and 1 PD (p = 0.077). 11/16 participants had MRS scans with an estimated probability that MRS changes a treatment plan of 0 (0, 0.285). CONCLUSION BZ-SRS with bevacizumab was feasible and well tolerated. There is no significant survival benefit using BZ-SRS with bevacizumab compared to institutional historical controls. Secondary analysis revealed a trend toward improved PFS-6, but not OS-6 after BZ-SRS. MRS scans did not result in changes to SRS treatment plans.
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Affiliation(s)
- Megan Mantica
- University of Pittsburgh Medical Center, 5150 Centre Avenue, Pittsburgh, PA, 15232, USA.
| | - Jan Drappatz
- University of Pittsburgh Medical Center, 5150 Centre Avenue, Pittsburgh, PA, 15232, USA
| | - Frank Lieberman
- University of Pittsburgh Medical Center, 5150 Centre Avenue, Pittsburgh, PA, 15232, USA
| | | | - L Dade Lunsford
- University of Pittsburgh Medical Center, 200 Lothrop Street, Pittsburgh, PA, 15213, USA
| | - Ajay Niranjan
- University of Pittsburgh Medical Center, 200 Lothrop Street, Pittsburgh, PA, 15213, USA
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5
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Gregucci F, Surgo A, Carbonara R, Laera L, Ciliberti MP, Gentile MA, Caliandro M, Sasso N, Bonaparte I, Fanelli V, Tortora R, Paulicelli E, Surico G, Lombardi G, Signorelli F, Fiorentino A. Radiosurgery and Stereotactic Brain Radiotherapy with Systemic Therapy in Recurrent High-Grade Gliomas: Is It Feasible? Therapeutic Strategies in Recurrent High-Grade Gliomas. J Pers Med 2022; 12:jpm12081336. [PMID: 36013284 PMCID: PMC9410141 DOI: 10.3390/jpm12081336] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/16/2022] [Accepted: 08/18/2022] [Indexed: 12/14/2022] Open
Abstract
Purpose. For recurrent high-grade gliomas (HGG), no standard therapeutic approach has been reported; thus, surgery, chemotherapy, and re-irradiation (re-RT) may all be proposed. The aim of the study was to evaluate safety and efficacy of re-RT by radiosurgery or fractionated stereotactic radiotherapy (SRS/FSRT) in association to chemotherapy in patients with recurrent HGG. Material/Methods: All patients with histological diagnosis of HGG that suffered by recurrent disease diagnosed by magnetic resonance imaging (MRI), according to Response Assessment in Neuro-Oncology (RANO) criteria, after primary/adjuvant chemo-radiotherapy treatment and underwent to re-RT by SRS/FSRT were included in the analysis. Second-line chemotherapy was administered. Outcomes were evaluated by neurological examination and brain MRI performed 1 month after re-RT and then every 2–3 months. Results: From November 2019 to September 2021, 30 patients presenting recurrent HGG underwent re-RT. Median dose was 24 Gy (range 15–36 Gy), and median fractions was 5 (range 1–6). Twenty-one patients (70%) had RPA class ≤ IV. One patient had a histological diagnosis of anaplastic oligodendroglioma, 24 patients (80%) were affected by glioblastoma (GBM) including 3 cases of multifocal form, and 5 patients (17%) by anaplastic astrocytoma. Median time between primary/adjuvant RT and disease recurrence was 8 months. In six cases (20%) re-operation was performed, and in most cases (87%), a second line of systemic therapy was administrated. At a median follow-up time from recurrence of 13 months (range 6–56 months), 10 patients (33%) were alive: 2 patients with partial response disease, 7 patients with stable disease, and 1 patient with out-field progression disease. Of the 20 patients who died (67%), 15 (75%) died for progression disease and 5 (25%) for other causes (3 due to septic event, 1 due to thrombo-embolic event, and 1 due to car accident). Median OS and PFS after recurrence were 12.1 and 11.2 months. Six-month and one-year OS were, respectively, 81% and 51%. No acute or late neurological side effects grade ≥ 2 and no case of radio-necrosis were reported. One patient experienced, after reintervention and during Regorafenib treatment (administered 40 days after surgery), dehiscence of the surgical wound. In three cases, grade 2 distal paresthesia was reported. Grade 3–4 hematologic toxicity occurred in seven cases. Three case of grade 5 toxicities during chemotherapy were reported: three septic events and one thrombo-embolic event. Conclusion. Re-RT with SRT/FSRT in association with second-line systemic therapy is a safe and feasible treatment for patients with HGG recurrence. Validation of these results by prospective studies is needed.
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Affiliation(s)
- Fabiana Gregucci
- Department of Radiation Oncology, Miulli General Regional Hospital, 70021 Acquaviva delle Fonti (BA), Italy
| | - Alessia Surgo
- Department of Radiation Oncology, Miulli General Regional Hospital, 70021 Acquaviva delle Fonti (BA), Italy
| | - Roberta Carbonara
- Department of Radiation Oncology, Miulli General Regional Hospital, 70021 Acquaviva delle Fonti (BA), Italy
| | - Letizia Laera
- Department of Medical Oncology, Miulli General Regional Hospital, 70021 Acquaviva delle Fonti (BA), Italy
| | - Maria Paola Ciliberti
- Department of Radiation Oncology, Miulli General Regional Hospital, 70021 Acquaviva delle Fonti (BA), Italy
| | - Maria Annunziata Gentile
- Department of Radiology, Miulli General Regional Hospital, 70021 Acquaviva delle Fonti (BA), Italy
| | - Morena Caliandro
- Department of Radiation Oncology, Miulli General Regional Hospital, 70021 Acquaviva delle Fonti (BA), Italy
| | - Nicola Sasso
- Department of Medical Oncology, Miulli General Regional Hospital, 70021 Acquaviva delle Fonti (BA), Italy
| | - Ilaria Bonaparte
- Department of Radiation Oncology, Miulli General Regional Hospital, 70021 Acquaviva delle Fonti (BA), Italy
| | - Vincenzo Fanelli
- Department of Neurosurgery, Miulli General Regional Hospital, 70021 Acquaviva delle Fonti (BA), Italy
| | - Romina Tortora
- Centro Orientamento Oncologico, Miulli General Regional Hospital, 70021 Acquaviva delle Fonti (BA), Italy
| | - Eleonora Paulicelli
- Department of Radiation Oncology, Miulli General Regional Hospital, 70021 Acquaviva delle Fonti (BA), Italy
| | - Giammarco Surico
- Department of Medical Oncology, Miulli General Regional Hospital, 70021 Acquaviva delle Fonti (BA), Italy
| | - Giuseppe Lombardi
- Department of Medical Oncology, Oncology 1, Veneto Institute of Oncology IOV-IRCCS, 35128 Padova, Italy
| | - Francesco Signorelli
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, Division of Neurosurgery, University “Aldo Moro”, 70124 Bari, Italy
| | - Alba Fiorentino
- Department of Radiation Oncology, Miulli General Regional Hospital, 70021 Acquaviva delle Fonti (BA), Italy
- Correspondence: ; Tel.: +39-080-3054608
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6
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High grade gliomas. PROGRESS IN BRAIN RESEARCH 2022; 268:259-270. [DOI: 10.1016/bs.pbr.2021.10.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Yakar F, Egemen E, Dere ÜA, Sağınç H, Gökdeniz U, Bakırarar B, Gökdeniz CG, Baltalarlı B, Coşkun ME, Acar F. The effectiveness of gamma knife radiosurgery for the management of residual high-grade gliomas: A single institutional study. J Clin Neurosci 2021; 95:159-163. [PMID: 34929640 DOI: 10.1016/j.jocn.2021.12.015] [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: 09/09/2021] [Revised: 11/24/2021] [Accepted: 12/11/2021] [Indexed: 10/19/2022]
Abstract
High-grade gliomas (HGGs) are presently managed via surgical resection, external beam radiation therapy (EBRT), and chemotherapy. Although Gamma Knife radiosurgery (GKRS) is currently used to manage HGGs, it has not been considered standard care. This paper aims to compare the contribution of GKRS to clinical outcomes in patients in which gross total resection (GTR) cannot be achieved. We retrospectively reviewed the data of 99 patients with HGG (World Health Organization (WHO) grade III and IV) from two groups: group 1 consisted of 68 patients for which only EBRT was administered, and group 2 consisted of 31 patients for which EBRT and GKRS were administered. Patient demographic data, the extent of resection, IDH mutation, radiation dosage, progression-free survival (PFS), overall survival (OS), and follow-up time were recorded and compared across groups. The grade III/IV tumor ratio was 10/58 and 10/21 in groups 1 and 2, respectively. In group 2, PFS and OS were higher than in group 1 (P = 0.030 and 0.021). The mean follow-up time was 15.02 ± 11.8 (3-52) and 18.9 ± 98.6 (7-43) months in groups 1 and 2, respectively. In addition to the standard management of HGGs in patients without GTR, boost GKRS during the early postoperative period is beneficial for increasing PFS and OS.
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Affiliation(s)
- Fatih Yakar
- Pamukkale University School of Medicine, Department of Neurosurgery, Çamlaraltı, Kınıklı Cd No:37, 20160 Pamukkale/Denizli, Turkey.
| | - Emrah Egemen
- Pamukkale University School of Medicine, Department of Neurosurgery, Çamlaraltı, Kınıklı Cd No:37, 20160 Pamukkale/Denizli, Turkey
| | - Ümit A Dere
- Pamukkale University School of Medicine, Department of Neurosurgery, Çamlaraltı, Kınıklı Cd No:37, 20160 Pamukkale/Denizli, Turkey
| | - Halil Sağınç
- Pamukkale University School of Medicine, Department of Radiation Oncology, Çamlaraltı, Kınıklı Cd No:37, 20160 Pamukkale/Denizli, Turkey
| | - Ulaş Gökdeniz
- Pamukkale University School of Medicine, Department of Neurosurgery, Çamlaraltı, Kınıklı Cd No:37, 20160 Pamukkale/Denizli, Turkey
| | - Batuhan Bakırarar
- Ankara University, School of Medicine, Department of Biostatistics, Hacettepe, A. Adnan Saygun Cd, 06230 Altındağ/Ankara, Turkey
| | - Ceyda G Gökdeniz
- Pamukkale University School of Medicine, Department of Public Health, Çamlaraltı, Kınıklı Cd No:37, 20160 Pamukkale/Denizli, Turkey
| | - Bahar Baltalarlı
- Pamukkale University School of Medicine, Department of Radiation Oncology, Çamlaraltı, Kınıklı Cd No:37, 20160 Pamukkale/Denizli, Turkey.
| | - Mehmet E Coşkun
- Pamukkale University School of Medicine, Department of Neurosurgery, Çamlaraltı, Kınıklı Cd No:37, 20160 Pamukkale/Denizli, Turkey
| | - Feridun Acar
- Odak Hospital, Department of Neurosurgery, Sümer Mah. No: 18, 20100 Merkez/Denizli, Turkey
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Lovo EE, Moreira A, Barahona KC, Ramirez J, Campos F, Tobar C, Caceros V, Sallabanda M, Sallabanda K. Stereotactic Radiosurgery for Recurrent Glioblastoma Multiforme: A Retrospective Multi-Institutional Experience. Cureus 2021; 13:e18480. [PMID: 34754642 PMCID: PMC8569687 DOI: 10.7759/cureus.18480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/04/2021] [Indexed: 12/15/2022] Open
Abstract
Introduction Glioblastoma multiforme (GBM) is the most common and lethal primary malignancy of the central nervous system. Despite standard therapy protocols, such as aggressive surgical resection, radiotherapy, and chemotherapy, GBM's aggressive nature produces low survival rates. Tumor recurrence and progression are nearly universal. Stereotactic radiosurgery (SRS) has been studied as an alternative treatment for recurrent GBM as a minimally invasive option that might prolong survival. The objective of this retrospective study was to evaluate the efficacy of SRS as a treatment modality considering overall survival (OS) in patients with GBM who had tumor recurrence and were treated with SRS in three different institutions. Materials and methods We retrospectively reviewed patients who received SRS for recurrent GBM between 1992 and 2020. A total of 46 patients were included in this study. We recorded age at diagnosis, the extent of surgical resection, radiation treatment, chemotherapy regimen, Karnofsky Performance Status at the time of SRS and at last follow-up, use of adjuvant chemotherapy after SRS, and response evaluation criteria in solid tumors. Primary endpoints were OS after initial diagnosis and OS from the date of the SRS procedure. Results Patients received SRS at a median of 10 months (range, 1 to 94 months) after their initial diagnoses. Median follow-up was seven months from the time of SRS and 22.8 months since diagnosis. The estimated median OS for all patients was nine months (range, 1 to 42 months) after SRS and 23.8 months (range, 4 to 102 months) after diagnosis. Median OS after SRS was seven months for patients treated from 1992 to 2011 and nine months for those treated from 2012 to 2020 (p = 0.008; X2 = 7.008). Median OS for younger patients (i.e., those aged <50 years) was 37.1 months compared to 18.6 months for older patients (i.e., those aged >50 years; p = 0.04; X2 = 3.870). Patients who received SRS after 10 months since diagnosis had a median OS of 36.2 months versus those who received SRS sooner than 10 months, who had an OS of 15 months (p = 0.004; X2 = 8.145). Radiosurgery doses larger than 15 Gy correlated with a median survival of nine months versus seven months in those treated with doses <15 Gy (p = 0.01; X2 = 6.756). Lastly, patients who received adjuvant bevacizumab (BEV) and or chemotherapy after SRS had a median survival of 12 months versus seven months for patients who did not receive any additional therapy after SRS (p = 0.04; X2 = 4.196). Conclusion SRS focal recurrent GBM in selected patients may improve OS, especially when combined with adjuvant therapy such as BEV and chemotherapy. Other prognostic variables proved relevant such as patients' age, the dose delivered, and surgery-to-SRS time that translates to the time of recurrence. Our results were consistent with the published literature and added to the accumulating evidence regarding SRS in recurrent GBM; however, extensive, multi-center studies are required to make definitive recommendations on this treatment approach.
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Affiliation(s)
- Eduardo E Lovo
- Radiosurgery/Neurosurgery, International Cancer Center, Diagnostic Hospital, San Salvador, SLV
| | - Alejandra Moreira
- Neurosurgery, International Cancer Center, Diagnostic Hospital, San Salvador, SLV
| | - Kaory C Barahona
- Radiation Oncology, International Cancer Center, Diagnostic Hospital, San Salvador, SLV
| | | | - Fidel Campos
- Radiosurgery, International Cancer Center, Diagnostic Hospital, San Salvador, SLV
| | - Carlos Tobar
- Radiation Oncology, International Cancer Center, Diagnostic Hospital, San Salvador, SLV
| | - Victor Caceros
- Radiosurgery, International Cancer Center, Diagnostic Hospital, San Salvador, SLV
| | | | - Kita Sallabanda
- Radiosurgery/Neurosurgery, Hospital Clinico Universitario San Carlos, Madrid, ESP
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9
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Au TH, Willis C, Reblin M, Peters KB, Nghiemphu PL, Taylor JW, Colman H, Cohen AL, Ormond DR, Chakravarti A, Willmarth N, Menon J, Ma J, Bauer H, Watanabe AH, Ulrich CM, Singh P, Marshall A, Korytowsky B, Stenehjem D, Brixner D. Caregiver burden by treatment and clinical characteristics of patients with glioblastoma. Support Care Cancer 2021; 30:1365-1375. [PMID: 34510238 PMCID: PMC8727395 DOI: 10.1007/s00520-021-06514-0] [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: 03/12/2021] [Accepted: 08/20/2021] [Indexed: 10/26/2022]
Abstract
BACKGROUND Glioblastoma is an incurable disease with a poor prognosis. For caregivers of people with glioblastoma, the burden of care can be high. Patients often present with different clinical characteristics, which may impact caregiver burden in different ways. This study aimed to evaluate associations between patient clinical characteristics and caregiver burden/quality of life (QoL). METHODS Caregiver-patient dyads were enrolled at 7 academic cancer centers in the United States. Eligible caregiver participants were self-reported as the primary caregiver of an adult living with glioblastoma and completed a caregiver burden survey. Eligible patients were age ≥ 18 years at glioblastoma diagnosis and alive when their respective caregiver entered the study, with the presence of cognitive dysfunction confirmed by the caregiver. Data were analyzed with descriptive statistics and multivariable analyses. RESULTS The final cohort included 167 dyads. Poor patient performance status resulted in patient difficulty with mental tasks, more caregiving tasks, and increased caregiving time. Language problems were reported in patients with left-sided lesions. Patient confusion was negatively associated with all caregiver domains: emotional health, social health, general health, ability to work, confidence in finances, and overall QoL. Better caregiver QoL was observed in patients with frontal lobe lesions versus non-frontal lobe lesions. CONCLUSION This study reinforced that patient performance status is a critical clinical factor that significantly affects caregiver burden, caregiving tasks, and caregiver time. Additionally, patient confusion affects multiple facets of caregiver burden/QoL. These results could be used to support guided intervention for caregiver support, customized to the patient experience.
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Affiliation(s)
- Trang H Au
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, UT, USA
| | - Connor Willis
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, UT, USA
| | - Maija Reblin
- Department of Health Outcomes and Behavior, Moffitt Cancer Center, Tampa, FL, USA
| | - Katherine B Peters
- The Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, NC, USA
| | | | - Jennie W Taylor
- Departments of Neurology and Neurological Surgery, University of California, San Francisco, San Francisco, CA, USA
| | - Howard Colman
- Department of Neurosurgery, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA
| | - Adam L Cohen
- Division of Oncology, Department of Internal Medicine, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA
| | - D Ryan Ormond
- Department of Neurosurgery, University of Colorado School of Medicine, Aurora, CO, USA
| | - Arnab Chakravarti
- Department of Radiation Oncology, The Ohio State University College of Medicine, Columbus, OH, USA
| | | | - Jyothi Menon
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, UT, USA
| | - Junjie Ma
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, UT, USA
| | - Hillevi Bauer
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, UT, USA
| | - Alexandre H Watanabe
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, UT, USA
| | - Cornelia M Ulrich
- Huntsman Cancer Institute and Department of Population Health Sciences, University of Utah, Salt Lake City, UT, USA
| | | | | | | | - David Stenehjem
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, UT, USA.,Department of Pharmacy Practice and Pharmaceutical Sciences, College of Pharmacy, University of Minnesota, Duluth, MN, USA
| | - Diana Brixner
- Department of Pharmacotherapy, College of Pharmacy, University of Utah, Salt Lake City, UT, USA.
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10
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Dono A, Amsbaugh M, Martir M, Smilie RH, Riascos RF, Zhu JJ, Hsu S, Kim DH, Tandon N, Ballester LY, Blanco AI, Esquenazi Y. Genomic alterations predictive of response to radiosurgery in recurrent IDH-WT glioblastoma. J Neurooncol 2021; 152:153-162. [PMID: 33492602 PMCID: PMC8354320 DOI: 10.1007/s11060-020-03689-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 12/26/2020] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Despite aggressive treatment, glioblastoma invariably recurs. The optimal treatment for recurrent glioblastoma (rGBM) is not well defined. Stereotactic radiosurgery (SRS) for rGBM has demonstrated favorable outcomes for selected patients; however, its efficacy in molecular GBM subtypes is unknown. We sought to identify genetic alterations that predict response/outcomes from SRS in rGBM-IDH-wild-type (IDH-WT). METHODS rGBM-IDH-WT patients undergoing SRS at first recurrence and tested by next-generation sequencing (NGS) were reviewed (2009-2018). Demographic, clinical, and molecular characteristics were evaluated. NGS interrogating 205-genes was performed. Primary outcome was survival from GK-SRS assessed by Kaplan-Meier method and multivariable Cox proportional-hazards. RESULTS Sixty-three lesions (43-patients) were treated at 1st recurrence. Median age was 61-years. All patients were treated with resection and chemoradiotherapy. Median time from diagnosis to 1st recurrence was 8.7-months. Median cumulative volume was 2.895 cm3 and SRS median marginal dose was 18 Gy (median isodose-54%). Bevacizumab was administered in 81.4% patients. PFS from SRS was 12.9-months. Survival from SRS was 18.2-months. PTEN-mutant patients had a longer PFS (p = 0.049) and survival from SRS (p = 0.013) in multivariable analysis. Although no statistically significant PTEN-mutants patients had higher frequency of radiation necrosis (21.4% vs. 3.4%) and lower in-field recurrence (28.6% vs. 37.9%) compared to PTEN-WT patients. CONCLUSIONS SRS is a safe and effective treatment option for selected rGBM-IDH-WT patients following first recurrence. rGBM-IDH-WT harboring PTEN-mutation have improved survival with salvage SRS compared to PTEN-WT patients. PTEN may be used as a molecular biomarker to identify a subset of rGBM patients who may benefit the most from SRS.
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Affiliation(s)
- Antonio Dono
- Vivian L. Smith Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
- Department of Pathology and Laboratory Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Mark Amsbaugh
- Vivian L. Smith Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
- Memorial Hermann Hospital-TMC, Houston, TX, USA
| | - Magda Martir
- Vivian L. Smith Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
- Memorial Hermann Hospital-TMC, Houston, TX, USA
| | - Richard H Smilie
- Vivian L. Smith Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Roy F Riascos
- Memorial Hermann Hospital-TMC, Houston, TX, USA
- Department of Diagnostic and Interventional Imaging, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Jay-Jiguang Zhu
- Vivian L. Smith Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
- Memorial Hermann Hospital-TMC, Houston, TX, USA
| | - Sigmund Hsu
- Vivian L. Smith Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
- Memorial Hermann Hospital-TMC, Houston, TX, USA
| | - Dong H Kim
- Vivian L. Smith Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
- Memorial Hermann Hospital-TMC, Houston, TX, USA
| | - Nitin Tandon
- Vivian L. Smith Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
- Memorial Hermann Hospital-TMC, Houston, TX, USA
| | - Leomar Y Ballester
- Vivian L. Smith Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA.
- Department of Pathology and Laboratory Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA.
- Memorial Hermann Hospital-TMC, Houston, TX, USA.
| | - Angel I Blanco
- Vivian L. Smith Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
- Memorial Hermann Hospital-TMC, Houston, TX, USA
| | - Yoshua Esquenazi
- Vivian L. Smith Department of Neurosurgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA.
- Memorial Hermann Hospital-TMC, Houston, TX, USA.
- Center for Precision Health, School of Biomedical Informatics, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA.
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11
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de Franca SA, Tavares WM, Salinet ASM, Teixeira MJ, Paiva WS. Laser interstitial thermal therapy as an adjunct therapy in brain tumors: A meta-analysis and comparison with stereotactic radiotherapy. Surg Neurol Int 2020; 11:360. [PMID: 33194293 PMCID: PMC7656052 DOI: 10.25259/sni_152_2020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 10/01/2020] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Minimally invasive procedures are gaining widespread acceptance in difficult-to-access brain tumor treatment. Stereotactic radiosurgery (SRS) is the preferred choice, however, laser interstitial thermal therapy (LITT) has emerged as a tumor cytoreduction technique. The present meta-analysis compared current SRS therapy with LITT in brain tumors. METHODS A search was performed in Lilacs, PubMed, and Cochrane database. Patient's demographics, tumor location, therapy used, Karnofsky performance status score before treatment, and patient's outcome (median overall survival, progression-free survival, and adverse events) data were extracted from studies. The risk of bias was assessed by Cochrane collaboration tool. RESULTS Twenty-five studies were included in this meta-analysis. LITT and SRS MOS in brain metastasis patients were 12.8 months' versus 9.8 months (ranges 9.3-16.3 and 8.3-9.8; P = 0.02), respectively. In a combined comparison of adverse effects among LITT versus SRS in brain metastasis, we found 15% reduction in absolute risk difference (-0.16; 95% confidence interval P < 0.0001). CONCLUSION We could not state that LITT treatment is an optimal alternative therapy for difficult-to-access brain tumors due to the lack of systematic data that were reported in our pooled studies. However, our results identified a positive effect in lowering the absolute risk of adverse events compared with SRS therapy. Therefore, randomized trials are encouraged to ascertain LITT role, as upfront or postoperative/post-SRS therapy for brain tumor treatment.
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Affiliation(s)
| | - Wagner Malago Tavares
- Department of Research, Instituto Paulista De Saude Para Alta Complexidade, Brazil
- Institute of Neurology, University of São Paulo, São Paulo, Brazil
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12
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Delgado-Fernández J, Frade-Porto N, Blasco G, González-Tarno P, Gil-Simoes R, Li ZQ, Rivas PP, de Sola RG. Does reintervention improve survival in recurrent glioblastoma? Facing a temporal bias in the literature. Acta Neurochir (Wien) 2020; 162:1967-1975. [PMID: 32556522 DOI: 10.1007/s00701-020-04432-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 05/26/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Glioblastoma (GBM) is the most frequent intraaxial malignant brain tumour, in which recurrence management is a frequent and demanding issue. Recently, reintervention has emerged as a useful tool for treatment. However, some new evidence has shown that most of the articles published could have overestimated its effects. We aimed to analyse the effect on survival of reintervention considering it as a time-dependent variable and to compare it with classic statistical analysis. METHODS We performed a retrospective study with GBM patients between 2007 and 2017. We compared the overall survival (OS) between reintervention and non-reintervention groups with time-dependent statistical methods (Simon-Makuch and landmarking methods and time-dependent multivariable Cox analysis) and compared them with those obtained with non-dependent time variable analysis. RESULTS A total of 183 patients were included in the analysis and 44 of them were reoperated. The standard analysis with Kaplan-Meier and multivariable Cox regression of the cohort showed an OS of 22.2 months (95% CI 12.56-16.06) in the reintervention group and 11.8 months (95% CI 9.87-13.67) in the non-reintervention group (p < .001); and an HR 0.649 (95% CI 0.434-0.97 p = .035) for reintervention, demonstrating an increase in OS. However, time-dependent analysis with the Simon-Makuch test and the landmarking method showed that the relationship was not consistent, as this increase in OS was not significant. Moreover, time-dependent multivariable Cox analysis did not show that reintervention improved OS in our cohort (HR 0.997 95% CI 0.976-1.018 p = 0.75). CONCLUSIONS There has been a temporal bias in the literature that has led to an overestimation of the positive effect of reintervention in recurrent GBM. However, reintervention could still be useful in some selected patients, who should be individualized according to prognostic factors related to the patient, biology of the tumour, and characteristics of surgical procedure.
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Affiliation(s)
- Juan Delgado-Fernández
- Department of Neurosurgery, University Hospital 12 de Octubre, Avda de Córdoba S/N, 28041, Madrid, Spain.
| | - Natalia Frade-Porto
- Division of Neurosurgery, Department of Surgery, University Hospital La Princesa, Madrid, Spain
| | - Guillermo Blasco
- Division of Neurosurgery, Department of Surgery, University Hospital La Princesa, Madrid, Spain
| | - Patricia González-Tarno
- Division of Neurosurgery, Department of Surgery, University Hospital La Princesa, Madrid, Spain
| | - Ricardo Gil-Simoes
- Division of Neurosurgery, Department of Surgery, University Hospital La Princesa, Madrid, Spain
| | - Zhi-Qiang Li
- Department of Neurosurgery, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Paloma Pulido Rivas
- Division of Neurosurgery, Department of Surgery, University Hospital La Princesa, Madrid, Spain
| | - Rafael García de Sola
- Innovation in Neurosurgery, Department of Neurosurgery, Hospital del Rosario, Universidad Autonoma de Madrid, Madrid, Spain
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13
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Trone JC, Vallard A, Sotton S, Ben Mrad M, Jmour O, Magné N, Pommier B, Laporte S, Ollier E. Survival after hypofractionation in glioblastoma: a systematic review and meta-analysis. Radiat Oncol 2020; 15:145. [PMID: 32513205 PMCID: PMC7278121 DOI: 10.1186/s13014-020-01584-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 05/25/2020] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Glioblastoma multiforme (GBM) has a poor prognosis despite a multi modal treatment that includes normofractionated radiotherapy. So, various hypofractionated alternatives to normofractionated RT have been tested to improve such prognosis. There is need of systematic review and meta-analysis to analyse the literature properly and maybe generalised the use of hypofractionation. The aim of this study was first, to perform a meta-analysis of all controlled trials testing the impact of hypofractionation on survival without age restriction and secondly, to analyse data from all non-comparative trials testing the impact of hypofractionation, radiosurgery and hypofractionated stereotactic RT in first line. MATERIALS/METHODS We searched Medline, Embase and Cochrane databases to identify all publications testing the impact of hypofractionation in glioblastoma between 1985 and March 2020. Combined hazard ratio from comparative studies was calculated for overall survival. The impact of study design, age and use of adjuvant temozolomide was explored by stratification. Meta-regressions were performed to determine the impact of prognostic factors. RESULTS 2283 publications were identified. Eleven comparative trials were included. No impact on overall survival was evidenced (HR: 1.07, 95%CI: 0.89-1.28) without age restriction. The analysis of non-comparative literature revealed heterogeneous outcomes with limited quality of reporting. Concurrent chemotherapy, completion of surgery, immobilization device, isodose of prescription, and prescribed dose (depending on tumour volume) were poorly described. However, results on survival are encouraging and were correlated with the percentage of resected patients and with patients age but not with median dose. CONCLUSIONS Because few trials were randomized and because the limited quality of reporting, it is difficult to define the place of hypofactionation in glioblastoma. In first line, hypofractionation resulted in comparable survival outcome with the benefit of a shortened duration. The method used to assess hypofractionation needs to be improved.
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Affiliation(s)
- Jane-Chloe Trone
- Department of Radiation Oncology, Lucien Neuwirth Cancer Institute, 108 Bis, Avenue Albert Raimond, 42270, Saint-Priest-en-Jarez, France.
| | - Alexis Vallard
- Department of Radiation Oncology, Lucien Neuwirth Cancer Institute, 108 Bis, Avenue Albert Raimond, 42270, Saint-Priest-en-Jarez, France
| | - Sandrine Sotton
- University Departement of Research and Teaching, Lucien Neuwirth Cancer Institute, Saint-Priest-en-Jarez, France
| | - Majed Ben Mrad
- Department of Radiation Oncology, Lucien Neuwirth Cancer Institute, 108 Bis, Avenue Albert Raimond, 42270, Saint-Priest-en-Jarez, France
| | - Omar Jmour
- Department of Radiation Oncology, Lucien Neuwirth Cancer Institute, 108 Bis, Avenue Albert Raimond, 42270, Saint-Priest-en-Jarez, France
| | - Nicolas Magné
- University Departement of Research and Teaching, Lucien Neuwirth Cancer Institute, Saint-Priest-en-Jarez, France
| | - Benjamin Pommier
- Department of Neurosurgery, University Hospital, Saint-Etienne, France
| | - Silvy Laporte
- SAINBIOSE U1059, Jean Monnet University, Saint-Etienne, France
| | - Edouard Ollier
- SAINBIOSE U1059, Jean Monnet University, Saint-Etienne, France
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14
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Choi SW, Cho KR, Choi JW, Kong DS, Seol HJ, Nam DH, Lee JI. Pattern of disease progression following stereotactic radiosurgery in malignant glioma patients. J Clin Neurosci 2020; 76:61-66. [PMID: 32312626 DOI: 10.1016/j.jocn.2020.04.047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 04/09/2020] [Indexed: 10/24/2022]
Abstract
INTRODUCTION The clinical benefit of stereotactic radiosurgery (SRS) in the treatment of malignant glioma remains controversial. We analyzed failure patterns of malignant gliomas following SRS to identify the clinical implications of SRS against these malignancies. MATERIALS AND METHODS We retrospectively reviewed 58 consecutive patients who received SRS with a gamma knife for their malignant glioma from January 2013 to December 2018. A total of 51 patients were available for analysis of failure patterns. Failure patterns were defined by the recurrent tumors' spatial relation to SRS target as follows: in-field local recurrence, remote recurrence, and leptomeningeal seeding. If patients demonstrated several types of failure patterns simultaneously, we categorized them as a combined failure pattern. RESULTS In-field local recurrence was found in 47.1% of patients. Other types of failure patterns were as follows: remote recurrence (19.6%), leptomeningeal seeding (13.7%), and combined failure pattern (19.6%). The majority of patients (52.9%) experienced disease progression beyond the radiation field of SRS, which implies limited efficacy of local therapy against these invasive tumors. The prognosis of patients differed according to failure pattern and patients with local recurrence had better survival outcomes compared to other types of disease progression (p-value = 0.0015, log-rank test). CONCLUSIONS This study illustrated that SRS could not improve survival of malignant gliomas significantly even when it had some effect within radiation field. Our findings support utilizing a multidisciplinary treatment strategy to improve the prognosis of malignant gliomas and suggest that SRS is one element of that treatment strategy.
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Affiliation(s)
- Seung Won Choi
- Department of Neurosurgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Republic of Korea
| | - Kyung Rae Cho
- Department of Neurosurgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Republic of Korea
| | - Jung Won Choi
- Department of Neurosurgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Republic of Korea
| | - Doo-Sik Kong
- Department of Neurosurgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Republic of Korea
| | - Ho Jun Seol
- Department of Neurosurgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Republic of Korea
| | - Do-Hyun Nam
- Department of Neurosurgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Republic of Korea
| | - Jung-Il Lee
- Department of Neurosurgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Republic of Korea.
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Yaprak G, Isık N, Gemici C, Pekyurek M, Ceylaner Bıcakcı B, Demircioglu F, Tatarlı N. Stereotactic Radiotherapy in Recurrent Glioblastoma: A Valid Salvage Treatment Option. Stereotact Funct Neurosurg 2020; 98:167-175. [PMID: 32248188 DOI: 10.1159/000505706] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 12/30/2019] [Indexed: 11/19/2022]
Abstract
BACKGROUND Glioblastoma (GBM) is a dismal disease. Recurrence is inevitable despite initial surgery and postoperative temozolomide (TMZ) and radiotherapy. Salvage surgery is the standard treatment in selected patients. Chemotherapy, biological agents, and re-irradiation are other treatment approaches available. Stereotactic radiotherapy (SRT) is nowadays a common treatment as a salvage treatment option. MATERIALS AND METHODS We reviewed the files of 132 GBM cases treated between 2010 and 2018. All patients received TMZ and radiotherapy after surgery or biopsy. Among the patients who had recurrence, we identified 42 cases treated with salvage SRT. The CyberKnife robotic system was used to administer SRT. RESULTS While the median follow-up time for all patients was 16 months (range 1-123), the median follow-up time for patients treated with SRT after initial diagnosis was 26.5 months (range 9-123). The median follow-up time after SRT was 10 months (range 2-107). SRT was performed in a median of 3 fractions (range 2-5). The median prescription dose was 20 Gy (range 18-30). While the median actuarial survival after initial diagnosis for patients treated with salvage SRT was 30 months (range 9-123), it was only 14 months (range 1-111) for patients who could not be treated with salvage SRT (p = 0.001). The median survival time after SRT was 12 months, and 1- and 2-year survival rates were 48 and 9%, respectively. The time to progression after SRT was 5 months (range 1-62), and 6-month and 1-year progression-free survival rates were 50 and 22%, respectively. Patients with longer time to recurrence >12 months had longer overall survival with respect to the ones having recurrence <12 months (p < 0.001). Salvage surgery had been performed in 7 out of 42 patients before SRT. These reoperated patients had significantly worse survival after SRT when compared to the patients who underwent SRT alone (p = 0.02). SRT was well tolerated and there was no grade III/IV toxicity. CONCLUSIONS SRT is a viable salvage treatment option for recurrent GBM. SRT provides acceptable local control and survival benefit for recurrent GBM cases. SRT can be considered especially in patients with long time to recurrence.
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Affiliation(s)
- Gokhan Yaprak
- Department of Radiation Oncology, University of Health Sciences, Dr. Lutfi Kırdar Kartal Training and Research Hospital, Istanbul, Turkey,
| | - Naciye Isık
- Department of Radiation Oncology, University of Health Sciences, Dr. Lutfi Kırdar Kartal Training and Research Hospital, Istanbul, Turkey
| | - Cengiz Gemici
- Department of Radiation Oncology, University of Health Sciences, Dr. Lutfi Kırdar Kartal Training and Research Hospital, Istanbul, Turkey
| | - Melike Pekyurek
- Department of Radiation Oncology, University of Health Sciences, Dr. Lutfi Kırdar Kartal Training and Research Hospital, Istanbul, Turkey
| | - Beyhan Ceylaner Bıcakcı
- Department of Radiation Oncology, University of Health Sciences, Dr. Lutfi Kırdar Kartal Training and Research Hospital, Istanbul, Turkey
| | - Fatih Demircioglu
- Department of Radiation Oncology, University of Health Sciences, Dr. Lutfi Kırdar Kartal Training and Research Hospital, Istanbul, Turkey
| | - Necati Tatarlı
- Department of Neurosurgery, University of Health Sciences, Dr. Lutfi Kırdar Kartal Training and Research Hospital, Istanbul, Turkey
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Sallabanda K, Yañez L, Sallabanda M, Santos M, Calvo FA, Marsiglia H. Stereotactic Radiosurgery for the Treatment of Recurrent High-grade Gliomas: Long-term Follow-up. Cureus 2019; 11:e6527. [PMID: 31911881 PMCID: PMC6939967 DOI: 10.7759/cureus.6527] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 12/31/2019] [Indexed: 11/05/2022] Open
Abstract
High-grade gliomas (HGG) are the most frequent primary central nervous system tumors; treatment of HCGs includes surgery and post-operative conformal radiotherapy associated with temozolomide (TMZ or procarbazine/lomustine/vincristine [PCV], specifically in patients with anaplastic oligodendrogliomas or anaplastic oligoastrocytomas). However, recurrence is common. Re-irradiation has been utilized in this setting for years and remains a feasible option, although there is always a concern regarding toxicity. Modern high-precision conformal techniques, including stereotactic radiosurgery (SRS), could improve the therapeutic ratio by delivering high biologically equivalent doses while reducing high-dose radiotherapy (RT) to normal brain tissue. In this paper, we present the results obtained after prolonged follow-up in patients who underwent SRS as a treatment for recurrent high-grade gliomas at San Francisco Hospital in Madrid, Spain.
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Affiliation(s)
- Kita Sallabanda
- Radiosurgery/ Neurosurgery, Hospital Clinico Universitario San Carlos, Madrid, ESP
| | - Loreto Yañez
- Radiotherapy, Fundación Arturo López Pérez, Rancagua, CHL
| | - Morena Sallabanda
- Radiation Oncology, Hospital Universitario Puerta de Hierro, Madrid, ESP
| | - Marcos Santos
- Neurosurgery, Instituto Madrileño De Oncología, Madrid, ESP
| | | | - Hugo Marsiglia
- Radiation Oncology, Fundación Arturo López Pérez (Santiago de Chile), Santiago de Chile, CHL
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17
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Sharma M, Schroeder JL, Elson P, Meola A, Barnett GH, Vogelbaum MA, Suh JH, Chao ST, Mohammadi AM, Stevens GHJ, Murphy ES, Angelov L. Outcomes and prognostic stratification of patients with recurrent glioblastoma treated with salvage stereotactic radiosurgery. J Neurosurg 2019; 131:489-499. [PMID: 30485180 DOI: 10.3171/2018.4.jns172909] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Accepted: 04/23/2018] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Glioblastoma (GBM) is the most malignant form of astrocytoma. The average survival is 6-10 months in patients with recurrent GBM (rGBM). In this study, the authors evaluated the role of stereotactic radiosurgery (SRS) in patients with rGBMs. METHODS The authors performed a retrospective review of their brain tumor database (1997-2016). Overall survival (OS) and progression-free survival (PFS) after salvage SRS were the primary endpoints evaluated. Response to SRS was assessed using volumetric MR images. RESULTS Fifty-three patients with rGBM underwent salvage SRS targeting 75 lesions. The median tumor diameter and volume were 2.55 cm and 3.80 cm3, respectively. The median prescription dose was 18 Gy (range 12-24 Gy) and the homogeneity index was 1.90 (range 1.11-2.02). The median OS after salvage SRS was estimated to be 11.0 months (95% CI 7.1-12.2) and the median PFS after salvage SRS was 4.4 months (95% CI 3.7-5.0). A Karnofsky Performance Scale score ≥ 80 was independently associated with longer OS, while small tumor volume (< 15 cm3) and less homogeneous treatment plans (homogeneity index > 1.75) were both independently associated with longer OS (p = 0.007 and 0.03) and PFS (p = 0.01 and 0.002, respectively). Based on these factors, 2 prognostic groups were identified for PFS (5.4 vs 3.2 months), while 3 were identified for OS (median OS of 15.2 vs 10.5 vs 5.2 months). CONCLUSIONS SRS is associated with longer OS and/or PFS in patients with good performance status, small-volume tumor recurrences, and heterogeneous treatment plans. The authors propose a prognostic model to identify a cohort of rGBM patients who may benefit from SRS.
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Affiliation(s)
- Mayur Sharma
- 1The Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland
| | - Jason L Schroeder
- 2Department of Surgery, Division of Neurosurgery, University of Toledo Medical Center, Toledo
| | - Paul Elson
- 3Department of Quantitative Health Sciences, Cleveland Clinic; and
| | - Antonio Meola
- 1The Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland
| | - Gene H Barnett
- 1The Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland
| | - Michael A Vogelbaum
- 1The Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland
| | - John H Suh
- 4The Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Department of Radiation Oncology, Cleveland Clinic, Cleveland, Ohio
| | - Samuel T Chao
- 4The Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Department of Radiation Oncology, Cleveland Clinic, Cleveland, Ohio
| | - Alireza M Mohammadi
- 1The Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland
| | - Glen H J Stevens
- 1The Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland
| | - Erin S Murphy
- 4The Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Department of Radiation Oncology, Cleveland Clinic, Cleveland, Ohio
| | - Lilyana Angelov
- 1The Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland
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18
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Fractionated stereotactic radiosurgery for malignant gliomas: comparison with single session stereotactic radiosurgery. J Neurooncol 2019; 145:571-579. [DOI: 10.1007/s11060-019-03328-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Accepted: 10/31/2019] [Indexed: 12/29/2022]
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19
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Abbassy M, Missios S, Barnett GH, Brewer C, Peereboom DM, Ahluwalia M, Neyman G, Chao ST, Suh JH, Vogelbaum MA. Phase I Trial of Radiosurgery Dose Escalation Plus Bevacizumab in Patients With Recurrent/Progressive Glioblastoma. Neurosurgery 2019; 83:385-392. [PMID: 28973311 DOI: 10.1093/neuros/nyx369] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 06/25/2017] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND The effectiveness of stereotactic radiosurgery (SRS) for recurrent glioblastoma (rGBM) remains uncertain. SRS has been associated with a high risk of radionecrosis in gliomas. OBJECTIVE To determine the safety of dose escalation of single-fraction radiosurgery for rGBM in the setting of bevacizumab therapy. METHODS We conducted a prospective trial to determine the safety and synergistic benefit of higher doses of SRS administered with bevacizumab for rGBM. A single dose of bevacizumab was given prior to SRS and continued until progression. Dose-limiting toxicity was evaluated in successive cohorts of 3 patients. RESULTS Seven males and 2 females entered the study. The maximum linear diameter of the enhancing tumor was 2.58 cm (2.04-3.09). Prescription dose was escalated from 18 to 22 Gy. The radiosurgery target was chosen before the first dose of bevacizumab, about 1 wk prior to SRS treatment. Pre-SRS bevacizumab treatment was associated with a reduction of the mean volume of the enhancing lesion from 4.7 to 2.86 cm3 on the day of SRS (P = .103). No patient developed an acute side effect related to SRS treatment. The combination of SRS and bevacizumab resulted in a partial response in 3 patients and stable disease in 6 patients. Median progression-free and overall survival were 7.5 and 13 mo, respectively. CONCLUSION A single dose of bevacizumab prior to SRS permitted safe prescription dose escalation up to 22 Gy for rGBM. Further evaluation of the efficacy of SRS for rGBM should be performed in the setting of bevacizumab treatment.
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Affiliation(s)
- Mahmoud Abbassy
- Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio.,Department of Neurosurgery, Alexandria University, Alexandria, Egypt
| | - Symeon Missios
- Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio
| | - Gene H Barnett
- Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio
| | - Cathy Brewer
- Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio
| | - David M Peereboom
- Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio.,Department of Hematology and Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio
| | - Manmeet Ahluwalia
- Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio.,Department of Hematology and Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio
| | - Gennady Neyman
- Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio.,Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio
| | - Samuel T Chao
- Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio.,Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio
| | - John H Suh
- Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio.,Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio
| | - Michael A Vogelbaum
- Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center, Department of Neurosurgery, Neurological Institute, Cleveland Clinic, Cleveland, Ohio
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20
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Gigliotti MJ, Hasan S, Karlovits SM, Ranjan T, Wegner RE. Re-Irradiation with Stereotactic Radiosurgery/Radiotherapy for Recurrent High-Grade Gliomas: Improved Survival in the Modern Era. Stereotact Funct Neurosurg 2018; 96:289-295. [PMID: 30404102 DOI: 10.1159/000493545] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 09/05/2018] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the efficacy of stereotactic radiosurgery (SRS) and fractionated stereotactic radiotherapy (fSRT) as salvage therapy for recurrent high-grade glioma and to look at the overall efficacy of treatment with linear accelerator (LINAC)-based radiosurgery and fractionated radiotherapy. METHODS From 2010 to 2017, a total of 25 patients aged 23-74 years were re-irradiated with LINAC-based SRS and fSRT. Patients were treated to a median dose of 25 Gy in 5 fractions. RESULTS The median overall survival (OS) after (initial) diagnosis was 39 months with an actuarial 1-, 3-, and 5-year OS rate of 88, 56, and 30%, respectively. After treatment with SRS or fSRT, the median OS was 9 months with an actuarial 1-year OS rate of 29%. Local control, assessed for 28 tumors, after 6 months was 57%, while local control after 1 year was 39%. Three patients experienced local failure. There was no evidence of toxicity noted after SRS or fSRT throughout the follow-up period. CONCLUSION SRS and fSRT remain a safe, reasonable, effective treatment option for re-irradiation following recurrent glioblastoma. Additionally, treatment volume may predict local control in the salvage setting.
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Affiliation(s)
- Michael J Gigliotti
- Division of Radiation Oncology, Allegheny Health Network, Pittsburgh, Pennsylvania, USA
| | - Shaakir Hasan
- Division of Radiation Oncology, Allegheny Health Network, Pittsburgh, Pennsylvania, USA
| | - Stephen M Karlovits
- Division of Radiation Oncology, Allegheny Health Network, Pittsburgh, Pennsylvania, USA
| | - Tulika Ranjan
- Division of Medical Oncology, Allegheny Health Network Cancer Institute, Pittsburgh, Pennsylvania, USA
| | - Rodney E Wegner
- Division of Radiation Oncology, Allegheny Health Network, Pittsburgh, Pennsylvania, USA,
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21
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Ho A, Jena R. Re-irradiation in the Brain: Primary Gliomas. Clin Oncol (R Coll Radiol) 2018; 30:124-136. [DOI: 10.1016/j.clon.2017.11.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 11/02/2017] [Accepted: 11/06/2017] [Indexed: 02/07/2023]
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22
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Imber BS, Kanungo I, Braunstein S, Barani IJ, Fogh SE, Nakamura JL, Berger MS, Chang EF, Molinaro AM, Cabrera JR, McDermott MW, Sneed PK, Aghi MK. Indications and Efficacy of Gamma Knife Stereotactic Radiosurgery for Recurrent Glioblastoma: 2 Decades of Institutional Experience. Neurosurgery 2017; 80:129-139. [PMID: 27428784 DOI: 10.1227/neu.0000000000001344] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Accepted: 05/23/2016] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND The role of stereotactic radiosurgery (SRS) for recurrent glioblastoma and the radionecrosis risk in this setting remain unclear. OBJECTIVE To perform a large retrospective study to help inform proper indications, efficacy, and anticipated complications of SRS for recurrent glioblastoma. METHODS We retrospectively analyzed patients who underwent Gamma Knife SRS between 1991 and 2013. We used the partitioning deletion/substitution/addition algorithm to identify potential predictor covariate cut points and Kaplan-Meier and proportional hazards modeling to identify factors associated with post-SRS and postdiagnosis survival. RESULTS One hundred seventy-four glioblastoma patients (median age, 54.1 years) underwent SRS a median of 8.7 months after initial diagnosis. Seventy-five percent had 1 treatment target (range, 1-6), and median target volume and prescriptions were 7.0 cm 3 (range, 0.3-39.0 cm 3 ) and 16.0 Gy (range, 10-22 Gy), respectively. Median overall survival was 10.6 months after SRS and 19.1 months after diagnosis. Kaplan-Meier and multivariable modeling revealed that younger age at SRS, higher prescription dose, and longer interval between original surgery and SRS are significantly associated with improved post-SRS survival. Forty-six patients (26%) underwent salvage craniotomy after SRS, with 63% showing radionecrosis or mixed tumor/necrosis vs 35% showing purely recurrent tumor. The necrosis/mixed group had lower mean isodose prescription compared with the tumor group (16.2 vs 17.8 Gy; P = .003) and larger mean treatment volume (10.0 vs 5.4 cm 3 ; P = .009). CONCLUSION Gamma Knife may benefit a subset of focally recurrent patients, particularly those who are younger with smaller recurrences. Higher prescriptions are associated with improved post-SRS survival and do not seem to have greater risk of symptomatic treatment effect.
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Affiliation(s)
- Brandon S Imber
- University of California, San Francisco School of Medicine, San Francisco, California
| | | | - Steve Braunstein
- Department of Radiation Oncology, University of California, San Francisco, San Francisco, California
| | - Igor J Barani
- Department of Radiation Oncology, University of California, San Francisco, San Francisco, California
| | - Shannon E Fogh
- Department of Radiation Oncology, University of California, San Francisco, San Francisco, California
| | - Jean L Nakamura
- Department of Radiation Oncology, University of California, San Francisco, San Francisco, California
| | | | | | | | | | | | - Penny K Sneed
- Department of Radiation Oncology, University of California, San Francisco, San Francisco, California
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23
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Fetcko K, Lukas RV, Watson GA, Zhang L, Dey M. Survival and complications of stereotactic radiosurgery: A systematic review of stereotactic radiosurgery for newly diagnosed and recurrent high-grade gliomas. Medicine (Baltimore) 2017; 96:e8293. [PMID: 29068998 PMCID: PMC5671831 DOI: 10.1097/md.0000000000008293] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Revised: 09/13/2017] [Accepted: 09/16/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Utilization of stereotactic radiosurgery (SRS) for treatment of high-grade gliomas (HGGs) has been slowly increasing with variable reported success rates. OBJECTIVE Systematic review of the available data to evaluate the efficacy of SRS as a treatment for HGG with regards to median overall survival (OS) and progression-free survival (PFS), in addition to ascertaining the rate of radiation necrosis and other SRS-related major neurological complications. METHODS Literature searches were performed for publications from 1992 to 2016. The pooled estimates of median PFS and median OS were calculated as a weighted estimate of population medians. Meta-analyses of published rates of radiation necrosis and other major neurological complications were also performed. RESULTS Twenty-nine studies reported the use of SRS for recurrent HGG, and 16 studies reported the use of SRS for newly diagnosed HGG. For recurrent HGG, the pooled estimates of median PFS and median OS were 5.42 months (3-16 months) and 20.19 months (9-65 months), respectively; the pooled radiation necrosis rate was 5.9% (0-44%); and the pooled estimates of major neurological complications rate was 3.3% (0-23%). For newly diagnosed HGG, the pooled estimates of median PFS and median OS were 7.89 months (5.5-11 months) and 16.87 months (9.5-33 months) respectively; the pooled radiation necrosis rate was 6.5% (0-33%); and the pooled estimates of other major neurological complications rate was 1.5% (0-25%). CONCLUSION Our results suggest that SRS holds promise as a relatively safe treatment option for HGG. In terms of efficacy at this time, there are inadequate data to support routine utilization of SRS as the standard of care for newly diagnosed or recurrent HGG. Further studies should be pursued to define more clearly the therapeutic role of SRS.
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Affiliation(s)
- Kaleigh Fetcko
- Department of Neurosurgery, Indiana University, Indianapolis, IN
| | - Rimas V. Lukas
- Department of Neurology, Northwestern University, Chicago, IL
| | - Gordon A. Watson
- Department of Radiation Oncology, Simon Cancer Center, Indiana University, Indianapolis, IN
| | - Lingjiao Zhang
- Department of Biostatistics and Epidemiology, University of Pennsylvania Perelman School of Medicine, Philidelphia, PA
| | - Mahua Dey
- Department of Neurosurgery, Indiana University, Indianapolis, IN
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24
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Delgado-Fernandez J, Garcia-Pallero MÁ, Blasco G, Penanes JR, Gil-Simoes R, Pulido P, Sola RG. Usefulness of Reintervention in Recurrent Glioblastoma: An Indispensable Weapon for Increasing Survival. World Neurosurg 2017; 108:610-617. [PMID: 28939537 DOI: 10.1016/j.wneu.2017.09.062] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 09/08/2017] [Accepted: 09/09/2017] [Indexed: 11/26/2022]
Abstract
BACKGROUND Glioblastoma is the most frequent primary brain tumor and despite of complete treatment survival is still poor. The aim of this study is to define the utility of reoperation for improving survival in patients with recurrent glioblastoma, and determine other prognostic factors associated with longer survival. METHODS We performed a retrospective analysis of those patients who underwent surgery and compared those who were operated two or more times and those who received surgery only once. We studied overall survival (OS), progression-free survival (PFS), and clinical variables that could be related with higher survival. RESULTS A total of 121 patients were eligible for the study, of whom 31 (25%) underwent reoperation. The reoperation group had a mean and median increase survival of 10.5 and 16.4 months in OS and 3.5 and 2.7 months for PFS compared with the non-reoperation group (P < 0.001 and 0.01, respectively). Although complications were higher in patients that underwent reintervention (19.3%) there was no statistical difference with complication rate in first surgery (12.4%, χ2 = 1.86; P = 0.40). Cox multivariable analysis revealed that age (hazard ratio [HR] 1.03; 95% confidence interval [CI], 1.006-1.055; P = 0.013), reoperation (HR, 0.48; 95% CI, 0.285-0.810; P = 0.006), extent of resection >95% (HR, 0.547; 95% CI, 0.401-0.748; P < 0.001), and complete adjuvant therapy (HR, 0.389; 95% CI, 0.208-0.726; P = 0.003) were correlated with a higher OS. CONCLUSIONS Reoperation and the extent of resection (EOR) are the only surgical variables that neurosurgeons can modify to improve survival in our patients. Higher EOR and reoperation rates in patients who can be candidates for second surgery, will increase OS and PFS.
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Affiliation(s)
| | | | - Guillermo Blasco
- Division of Neurosurgery, University Hospital La Princesa, Madrid, Spain
| | - Juan R Penanes
- Division of Neurosurgery, University Hospital La Princesa, Madrid, Spain
| | - Ricardo Gil-Simoes
- Division of Neurosurgery, University Hospital La Princesa, Madrid, Spain
| | - Paloma Pulido
- Division of Neurosurgery, University Hospital La Princesa, Madrid, Spain
| | - Rafael G Sola
- Division of Neurosurgery, University Hospital La Princesa, Madrid, Spain
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Zwirner K, Paulsen F, Schittenhelm J, Borchers C, Skardelly M, Zips D, Eckert F. Prognostic parameters and outcome after re-irradiation for progressive glioblastoma. Acta Neurol Scand 2017; 136:239-245. [PMID: 28025828 DOI: 10.1111/ane.12719] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/17/2016] [Indexed: 12/19/2022]
Abstract
OBJECTIVES In progressive glioblastoma, salvage treatment remains unstandardized, response is highly variable, and detailed analysis of individual approaches is mandatory. Re-irradiation is an established option in the therapy of progressive glioblastoma. Thus, we analysed outcome and prognostic parameters of patients with re-irradiated glioblastoma treated at our institution since 1998. MATERIALS AND METHODS In a total of 51 patients, clinical and treatment parameters were collected and analysed retrospectively. Re-irradiation protocols included radiosurgery, hypofractionated radiotherapy or normofractionated radiotherapy. Outcome was analysed regarding prognostic factors in this highly selected cohort. RESULTS Median overall survival after primary diagnosis was 28.8 months. Patients re-irradiated with single-dose stereotactic radiosurgery or hypofractionated regimes showed a superior overall survival after primary diagnosis compared to normofractionated treatment. Positive prognostic factors included a smaller gross tumour volume and younger age. A methylated MGMT promoter approached statistical significance as a positive factor regarding overall survival after re-irradiation. Further well-known prognostic factors as extension of the initial resection and the concomitance of temozolomide with the initial radiation treatment only appeared relevant in a subgroup of four long-term survivors. CONCLUSIONS The favourable results regarding overall survival are probably due to patient selection for re-irradiation. If technically feasible, stereotactic radiosurgery or hypofractionated regimes should be preferred. In this highly selected re-irradiation cohort, only some of the well-known prognostic factors of the primary tumour setting were found to influence overall survival significantly. In contrast, also some patients presenting with unfavourable predictive parameters showed an encouraging course of disease and thus should not be excluded from re-irradiation.
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Affiliation(s)
- K. Zwirner
- Department of Radiation Oncology; University Hospital Tuebingen; Eberhard Karls University Tuebingen; Tuebingen Germany
| | - F. Paulsen
- Department of Radiation Oncology; University Hospital Tuebingen; Eberhard Karls University Tuebingen; Tuebingen Germany
- Neuro-Oncology Center; Comprehensive Cancer Center Tuebingen; Tuebingen Germany
| | - J. Schittenhelm
- Department of Neuropathology; University Hospital Tuebingen; Eberhard Karls University Tuebingen; Tuebingen Germany
- Neuro-Oncology Center; Comprehensive Cancer Center Tuebingen; Tuebingen Germany
| | - C. Borchers
- Department of Neurology; University Hospital Tuebingen; Eberhard Karls University Tuebingen; Tuebingen Germany
- Department of Neurology; Sanderbusch Hospital; Sande Germany
- Neuro-Oncology Center; Comprehensive Cancer Center Tuebingen; Tuebingen Germany
| | - M. Skardelly
- Department of Neurosurgery; University Hospital Tuebingen; Eberhard Karls University Tuebingen; Tuebingen Germany
- Neuro-Oncology Center; Comprehensive Cancer Center Tuebingen; Tuebingen Germany
| | - D. Zips
- Department of Radiation Oncology; University Hospital Tuebingen; Eberhard Karls University Tuebingen; Tuebingen Germany
- Neuro-Oncology Center; Comprehensive Cancer Center Tuebingen; Tuebingen Germany
- German Cancer Consortium (DKTK); German Cancer Research Center (DKFZ) partner site Tuebingen; Tuebingen Germany
| | - F. Eckert
- Department of Radiation Oncology; University Hospital Tuebingen; Eberhard Karls University Tuebingen; Tuebingen Germany
- Neuro-Oncology Center; Comprehensive Cancer Center Tuebingen; Tuebingen Germany
- German Cancer Consortium (DKTK); German Cancer Research Center (DKFZ) partner site Tuebingen; Tuebingen Germany
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Re-irradiation after gross total resection of recurrent glioblastoma : Spatial pattern of recurrence and a review of the literature as a basis for target volume definition. Strahlenther Onkol 2017; 193:897-909. [PMID: 28616821 DOI: 10.1007/s00066-017-1161-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 05/23/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND Currently, patients with gross total resection (GTR) of recurrent glioblastoma (rGBM) undergo adjuvant chemotherapy or are followed up until progression. Re-irradiation, as one of the most effective treatments in macroscopic rGBM, is withheld in this situation, as uncertainties about the pattern of re-recurrence, the target volume, and also the efficacy of early re-irradiation after GTR exist. METHODS Imaging and clinical data from 26 consecutive patients with GTR of rGBM were analyzed. The spatial pattern of recurrences was analyzed according to the RANO-HGG criteria ("response assessment in neuro-oncology criteria for high-grade gliomas"). Progression-free (PFS) and overall survival (OS) were analyzed by the Kaplan-Meier method. Furthermore, a systematic review was performed in PubMed. RESULTS All but 4 patients underwent adjuvant chemotherapy after GTR. Progression was diagnosed in 20 of 26 patients and 70% of recurrent tumors occurred adjacent to the resection cavity. The median extension beyond the edge of the resection cavity was 20 mm. Median PFS was 6 months; OS was 12.8 months. We propose a target volume containing the resection cavity and every contrast enhancing lesion as the gross tumor volume (GTV), a spherical margin of 5-10 mm to generate the clinical target volume (CTV), and a margin of 1-3 mm to generate the planning target volume (PTV). Re-irradiation of this volume is deemed to be safe and likely to prolong PFS. CONCLUSION Re-irradiation is worth considering also after GTR, as the volumes that need to be treated are limited and re-irradiation has already proven to be a safe treatment option in general. The strategy of early re-irradiation is currently being tested within the GlioCave/NOA 17/Aro 2016/03 trial.
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27
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Su J, Cai M, Li W, Hou B, He H, Ling C, Huang T, Liu H, Guo Y. Molecularly Targeted Drugs Plus Radiotherapy and Temozolomide Treatment for Newly Diagnosed Glioblastoma: A Meta-Analysis and Systematic Review. Oncol Res 2017; 24:117-28. [PMID: 27296952 PMCID: PMC7838606 DOI: 10.3727/096504016x14612603423511] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Glioblastoma (GBM) is the most common primary malignant brain tumor that nearly always results in a bad prognosis. Temozolomide plus radiotherapy (TEM+RAD) is the most common treatment for newly diagnosed GBM. With the development of molecularly targeted drugs, several clinical trials were reported; however, the efficacy of the treatment remains controversial. So we attempted to measure the dose of the molecularly targeted drug that could improve the prognosis of those patients. The appropriate electronic databases (PubMed, MEDLINE, EMBASE, and the Cochrane Library) were searched for relevant studies. A meta-analysis was performed after determining which studies met the inclusion criteria. Six randomized, controlled trials (RCTs) were identified for this meta-analysis, comprising 2,637 GBM patients. The benefit of overall survival (OS) was hazard ratio (HZ), 0.936 [95% confidence interval (CI), 0.852–1.028]. The benefit with respect to progression-free survival (PFS) rate was HZ of 0.796 (95% CI, 0.701–0.903). OS benefit of cilengitide was HZ of 0.792 (95% CI, 0.642–0.977). The adverse effects higher than grade 3 were 57.7% in the experimental group and 44.1% in the placebo group (odds ratio, 1.679; 95% CI, 1.434–1.967). The addition of molecularly targeted drugs to TEM + RAD did not improve the OS of patients with GBM; however, it did improve PFS in patients treated by cilengitide who could not get improvement in OS. The rate of adverse effects was higher in the experimental group than in the placebo group.
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Affiliation(s)
- Jiahao Su
- Department of Neurosurgery, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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28
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Peyrl A, Frischer J, Hainfellner JA, Preusser M, Dieckmann K, Marosi C. Brain tumors - other treatment modalities. HANDBOOK OF CLINICAL NEUROLOGY 2017; 145:547-560. [PMID: 28987193 DOI: 10.1016/b978-0-12-802395-2.00034-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Management of tumors of the central nervous system is challenging for clinicians for various reasons, including complex diagnostic procedures, limited penetration of drugs into brain tissue, and the prerequisite to preserve brain function in any case of therapeutic intervention. Therapeutic success is dependent on the efforts, skills, and cooperation of involved specialists and disciplines. Knowledge and ability to apply adequate therapeutic modalities in an interdisciplinary approach in due time are crucial, necessitating coordination of diagnostic procedures and therapeutic interventions by means of multidisciplinary brain tumor boards. In this chapter we present in brief the essential current standards and future perspectives for therapy modalities that complement surgery of brain tumors.
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Affiliation(s)
- Andreas Peyrl
- Department of Pediatrics, Medical University of Vienna, Vienna, Austria
| | - Josa Frischer
- Department of Neurosurgery, Medical University of Vienna, Vienna, Austria; Comprehensive Cancer Center - Central Nervous System Tumors Unit (CCC-CNS), Medical University of Vienna, Vienna, Austria
| | - Johannes A Hainfellner
- Comprehensive Cancer Center - Central Nervous System Tumors Unit (CCC-CNS), Medical University of Vienna, Vienna, Austria; Institute of Neurology, Medical University of Vienna, Vienna, Austria.
| | - Matthias Preusser
- Comprehensive Cancer Center - Central Nervous System Tumors Unit (CCC-CNS), Medical University of Vienna, Vienna, Austria; Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - Karin Dieckmann
- Comprehensive Cancer Center - Central Nervous System Tumors Unit (CCC-CNS), Medical University of Vienna, Vienna, Austria; Department of Radiotherapy, Medical University of Vienna, Vienna, Austria
| | - Christine Marosi
- Comprehensive Cancer Center - Central Nervous System Tumors Unit (CCC-CNS), Medical University of Vienna, Vienna, Austria; Department of Medicine I, Medical University of Vienna, Vienna, Austria
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Ozel O, Kurt M, Ozdemir O, Bayram J, Akdeniz H, Koca D. Complete response to bevacizumab plus irinotecan in patients with rapidly progressive GBM: Cases report and literature review. JOURNAL OF ONCOLOGICAL SCIENCES 2016. [DOI: 10.1016/j.jons.2016.07.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Voigt JD, Barnett G. The value of using a brain laser interstitial thermal therapy (LITT) system in patients presenting with high grade gliomas where maximal safe resection may not be feasible. COST EFFECTIVENESS AND RESOURCE ALLOCATION 2016; 14:6. [PMID: 27006643 PMCID: PMC4802786 DOI: 10.1186/s12962-016-0055-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 03/11/2016] [Indexed: 12/04/2022] Open
Abstract
Background The objective of this analysis was to determine the value (incremental cost/increment benefit) of a brain LITT system versus employing current surgical options recommended by NCCN guidelines, specifically open resection (i.e. craniotomy) methods or biopsy (collectively termed CURRENT TREATMENTS) in patients where maximal safe resection may not be feasible. As has been demonstrated in the literature, extent of resection/ablation with minimal complications are independently related to overall survival. Methods A cost effectiveness analysis from a societal perspective was employed using TreeAge Pro 2014 software. Direct costs (using national average Medicare reimbursement amounts), outcomes (overall survival), and value [defined as increment cost/incremental survival—evaluated as cost/life year gained (LYG)] were evaluated. Sensitivity analysis was also performed to determine which variables had the largest effect on incremental costs and outcomes. Results In the base case, the overall survival was improved with brain LITT versus CURRENT TREATMENTS by 3.07 months at an additional cost of $7508 (or $29,340/LYG). This amount was significantly less than the current international threshold value for $32,575/LYG and considerably less than the US threshold value of $50,000/LYG. This incremental cost may also qualify under NICE criteria for end of life therapies. In sensitivity analysis: As percent local recurrence GBM increased; cost of DRG25/26 increased; percent GTR increased; and gliadel use increased—the value of brain LITT improved. Additionally, in those patients where a biopsy is the only option, brain LITT extended life by 7 months. Conclusions Brain LITT should be considered a viable option for treatment of high grade gliomas as it improves survival at a cost which appears to be of good value to society. This incremental cost is less than the international and US thresholds for good value.
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Affiliation(s)
| | - Gene Barnett
- The Rose Ella Burkhardt Chair in Neurosurgical Oncology, The Cleveland Clinic, Lerner College of Medicine of Case Western Reserve University, The Cleveland Clinic S73, 9500 Euclid Avenue, Cleveland, OH 44195 USA ; Department of Neurological Surgery, Rose Ella Burkhardt Brain Tumor and Neuro-Oncology Center Cleveland Clinic Neurological Institute, The Cleveland Clinic, S73, 9500 Euclid Avenue, Cleveland, OH 44195 USA
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Bokstein F, Blumenthal DT, Corn BW, Gez E, Matceyevsky D, Shtraus N, Ram Z, Kanner AA. Stereotactic radiosurgery (SRS) in high-grade glioma: judicious selection of small target volumes improves results. J Neurooncol 2015; 126:551-7. [PMID: 26603164 DOI: 10.1007/s11060-015-1997-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Accepted: 11/19/2015] [Indexed: 11/29/2022]
Abstract
We present a retrospective review of 55 Stereotactic Radiosurgery (SRS) procedures performed in 47 consecutive patients with high-grade glioma (HGG). Thirty-three (70.2%) patients were diagnosed with glioblastoma and 14 (29.8%) with grade III glioma. The indications for SRS were small (up to 30 mm in diameter) locally progressing lesions in 32/47 (68%) or new distant lesions in 15/47 (32%) patients. The median target volume was 2.2 cc (0.2-9.5 cc) and the median prescription dose was 18 Gy (14-24 Gy). Three patients (5.5% incidence in 55 treatments) developed radiation necrosis. In eight cases (17%) patients received a second salvage SRS treatment to nine new lesions detected during follow-up. In 22/55 SRS treatments (40.0%) patients received concurrent chemo- or biological therapy, including temozolamide (TMZ) (15 patients), bevacizumab (BVZ) (6 patients) and carboplatin in one patient. Median time to progression after SRS was 5.0 months (1.0-96.4). Median survival time after SRS was 15.9 months (2.3-109.3) overall median survival (since diagnosis) was 37.4 months (9.6-193.6 months). Long-lasting responses (>12 months) after SRS were observed in 25/46 (54.3%) patients. We compared a matched (histology, age, KPS) cohort of patients with recurrent HGG treated with BVZ alone with the current study group. Median survival was significantly longer for SRS treated patients compared to the BVZ only cohort (12.6 vs. 7.3 months, p = 0.0102). SRS may be considered an effective salvage procedure for selected patients with small volume, recurrent high-grade gliomas. Long-term radiological control was observed in more than 50% of the patients.
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Affiliation(s)
- Felix Bokstein
- Neuro-Oncology Unit, Tel Aviv Medical Center, Tel Aviv University, Tel Aviv, Israel
| | - Deborah T Blumenthal
- Neuro-Oncology Unit, Tel Aviv Medical Center, Tel Aviv University, Tel Aviv, Israel
| | - Benjamin W Corn
- Institute of Radiotherapy, Tel Aviv Medical Center, Tel Aviv University, Tel Aviv, Israel.,Stereotactic Radiosurgery Unit, Tel Aviv Medical Center, Tel Aviv University, Tel Aviv, Israel
| | - Eliahu Gez
- Institute of Radiotherapy, Tel Aviv Medical Center, Tel Aviv University, Tel Aviv, Israel.,Stereotactic Radiosurgery Unit, Tel Aviv Medical Center, Tel Aviv University, Tel Aviv, Israel
| | - Diana Matceyevsky
- Institute of Radiotherapy, Tel Aviv Medical Center, Tel Aviv University, Tel Aviv, Israel.,Stereotactic Radiosurgery Unit, Tel Aviv Medical Center, Tel Aviv University, Tel Aviv, Israel
| | - Natan Shtraus
- Institute of Radiotherapy, Tel Aviv Medical Center, Tel Aviv University, Tel Aviv, Israel.,Stereotactic Radiosurgery Unit, Tel Aviv Medical Center, Tel Aviv University, Tel Aviv, Israel
| | - Zvi Ram
- Department of Neurosurgery, Tel Aviv Medical Center, Tel Aviv University, Tel Aviv, Israel
| | - Andrew A Kanner
- Stereotactic Radiosurgery Unit, Tel Aviv Medical Center, Tel Aviv University, Tel Aviv, Israel. .,Department of Neurosurgery, Tel Aviv Medical Center, Tel Aviv University, Tel Aviv, Israel.
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