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Treatment of Radiation-Induced Brain Necrosis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2021:4793517. [PMID: 34976300 PMCID: PMC8720020 DOI: 10.1155/2021/4793517] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 11/25/2021] [Accepted: 12/08/2021] [Indexed: 02/07/2023]
Abstract
Radiation-induced brain necrosis (RBN) is a serious complication of intracranial as well as skull base tumors after radiotherapy. In the past, due to the lack of effective treatment, radiation brain necrosis was considered to be progressive and irreversible. With better understanding in histopathology and neuroimaging, the occurrence and development of RBN have been gradually clarified, and new treatment methods are constantly emerging. In recent years, some scholars have tried to treat RBN with bevacizumab, nerve growth factor, and gangliosides and have achieved similar results. Some cases of brain necrosis can be repairable and reversible. We aimed to summarize the incidence, pathogenesis, and treatment of RBN.
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Matsuda R, Morimoto T, Tamamoto T, Inooka N, Ochi T, Miyasaka T, Hontsu S, Yamaki K, Miura S, Takeshima Y, Tamura K, Yamada S, Nishimura F, Nakagawa I, Motoyama Y, Park YS, Hasegawa M, Nakase H. Salvage Surgical Resection after Linac-Based Stereotactic Radiosurgery for Newly Diagnosed Brain Metastasis. Curr Oncol 2021; 28:5255-5265. [PMID: 34940078 PMCID: PMC8699906 DOI: 10.3390/curroncol28060439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 12/01/2021] [Accepted: 12/06/2021] [Indexed: 11/16/2022] Open
Abstract
Background: This study aimed to assess the clinical outcomes of salvage surgical resection (SSR) after stereotactic radiosurgery and fractionated stereotactic radiotherapy (SRS/fSRT) for newly diagnosed brain metastasis. Methods: Between November 2009 and May 2020, 318 consecutive patients with 1114 brain metastases were treated with SRS/fSRT for newly diagnosed brain metastasis at our hospital. During this study period, 21 of 318 patients (6.6%) and 21 of 1114 brain metastases (1.9%) went on to receive SSR after SRS/fSRT. Three patients underwent multiple surgical resections. Twenty-one consecutive patients underwent twenty-four SSRs. Results: The median time from initial SRS/fSRT to SSR was 14 months (range: 2–96 months). The median follow-up after SSR was 17 months (range: 2–78 months). The range of tumor volume at initial SRS/fSRT was 0.12–21.46 cm3 (median: 1.02 cm3). Histopathological diagnosis after SSR was recurrence in 15 cases, and radiation necrosis (RN) or cyst formation in 6 cases. The time from SRS/fSRT to SSR was shorter in the recurrence than in the RNs and cyst formation, but these differences did not reach statistical significance (p = 0.067). The median survival time from SSR and from initial SRS/fSRT was 17 and 74 months, respectively. The cases with recurrence had a shorter survival time from initial SRS/fSRT than those without recurrence (p = 0.061). Conclusions: The patients treated with SRS/fSRT for brain metastasis need long-term follow-up. SSR is a safe and effective treatment for the recurrence, RN, and cyst formation after SRS/fSRT for brain metastasis.
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Affiliation(s)
- Ryosuke Matsuda
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Japan; (T.M.); (Y.T.); (K.T.); (S.Y.); (F.N.); (I.N.); (Y.M.); (Y.-S.P.); (H.N.)
- Correspondence: ; Tel.: +81-744-22-3051
| | - Takayuki Morimoto
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Japan; (T.M.); (Y.T.); (K.T.); (S.Y.); (F.N.); (I.N.); (Y.M.); (Y.-S.P.); (H.N.)
| | - Tetsuro Tamamoto
- Department of Radiation Oncology, Nara Medical University, Kashihara 634-8521, Japan; (T.T.); (N.I.); (K.Y.); (S.M.); (M.H.)
- Department of Medical Informatics, Nara Medical University Hospital, Kashihara 634-8522, Japan
| | - Nobuyoshi Inooka
- Department of Radiation Oncology, Nara Medical University, Kashihara 634-8521, Japan; (T.T.); (N.I.); (K.Y.); (S.M.); (M.H.)
| | - Tomoko Ochi
- Department of Radiology, Nara Medical University Hospital, Kashihara 634-8522, Japan; (T.O.); (T.M.)
| | - Toshiteru Miyasaka
- Department of Radiology, Nara Medical University Hospital, Kashihara 634-8522, Japan; (T.O.); (T.M.)
| | - Shigeto Hontsu
- Department of Respiratory Medicine, Nara Medical University Hospital, Kashihara 634-8522, Japan;
| | - Kaori Yamaki
- Department of Radiation Oncology, Nara Medical University, Kashihara 634-8521, Japan; (T.T.); (N.I.); (K.Y.); (S.M.); (M.H.)
| | - Sachiko Miura
- Department of Radiation Oncology, Nara Medical University, Kashihara 634-8521, Japan; (T.T.); (N.I.); (K.Y.); (S.M.); (M.H.)
| | - Yasuhiro Takeshima
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Japan; (T.M.); (Y.T.); (K.T.); (S.Y.); (F.N.); (I.N.); (Y.M.); (Y.-S.P.); (H.N.)
| | - Kentaro Tamura
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Japan; (T.M.); (Y.T.); (K.T.); (S.Y.); (F.N.); (I.N.); (Y.M.); (Y.-S.P.); (H.N.)
| | - Shuichi Yamada
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Japan; (T.M.); (Y.T.); (K.T.); (S.Y.); (F.N.); (I.N.); (Y.M.); (Y.-S.P.); (H.N.)
| | - Fumihiko Nishimura
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Japan; (T.M.); (Y.T.); (K.T.); (S.Y.); (F.N.); (I.N.); (Y.M.); (Y.-S.P.); (H.N.)
| | - Ichiro Nakagawa
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Japan; (T.M.); (Y.T.); (K.T.); (S.Y.); (F.N.); (I.N.); (Y.M.); (Y.-S.P.); (H.N.)
| | - Yasushi Motoyama
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Japan; (T.M.); (Y.T.); (K.T.); (S.Y.); (F.N.); (I.N.); (Y.M.); (Y.-S.P.); (H.N.)
| | - Young-Soo Park
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Japan; (T.M.); (Y.T.); (K.T.); (S.Y.); (F.N.); (I.N.); (Y.M.); (Y.-S.P.); (H.N.)
| | - Masatoshi Hasegawa
- Department of Radiation Oncology, Nara Medical University, Kashihara 634-8521, Japan; (T.T.); (N.I.); (K.Y.); (S.M.); (M.H.)
| | - Hiroyuki Nakase
- Department of Neurosurgery, Nara Medical University, Kashihara 634-8521, Japan; (T.M.); (Y.T.); (K.T.); (S.Y.); (F.N.); (I.N.); (Y.M.); (Y.-S.P.); (H.N.)
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Velnar T, Bosnjak R. Radiosurgical techniques for the treatment of brain neoplasms: A short review. World J Methodol 2018; 8:51-58. [PMID: 30596035 PMCID: PMC6305523 DOI: 10.5662/wjm.v8.i4.51] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 11/06/2018] [Accepted: 11/16/2018] [Indexed: 02/06/2023] Open
Abstract
Radiotherapy has long been used as an adjunct to neurosurgery for the treatment of malignant and benign intracranial tumors and other intracranial lesions. Intracranial tumors can be irradiated in three different ways: I) fractional radiotherapy, II) stereotactic radiotherapy and III) stereotactic radiosurgery. The third is most often by means of a gamma knife or a specially designed linear accelerator. Additionally, radiosurgery is increasingly used in combination with systemic therapy to treat metastases.
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Affiliation(s)
- Tomaz Velnar
- Department of Neurosurgery, University Medical Centre Ljubljana, Ljubljana 1000, Slovenia
- AMEU-ECM, Maribor 2000, Slovenia
| | - Roman Bosnjak
- Department of Neurosurgery, University Medical Centre Ljubljana, Ljubljana 1000, Slovenia
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