Outcomes after gamma knife radiosurgery for intraventricular meningiomas

Background Intraventricular meningiomas (IVMs) are rare tumors with considerable treatment-associated morbidity due to their challenging location. Treatment with stereotactic radiosurgery (SRS) is sparsely reported in the literature. We describe our experience over the last 35 years using Gamma knif...

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Fecha de publicación:: 2022

Institución:: Universidad del Rosario

Repositorio:: Repositorio EdocUR - U. Rosario

Idioma:: spa

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network_acronym_str	EDOCUR2
network_name_str	Repositorio EdocUR - U. Rosario
repository_id_str
dc.title.none.fl_str_mv	Outcomes after gamma knife radiosurgery for intraventricular meningiomas
dc.title.TranslatedTitle.none.fl_str_mv	Resultads despues de radiocirugía gamma en meningiomas intraventriculares
title	Outcomes after gamma knife radiosurgery for intraventricular meningiomas
spellingShingle	Outcomes after gamma knife radiosurgery for intraventricular meningiomas Intraventricular meningiomas Meningioma Stereotactic radiosurgery Gamma Knife radiosurgery Edema Adverse radiation effects Intraventricular meningiomas Meningioma Stereotactic radiosurgery Gamma Knife radiosurgery Edema Adverse radiation effects
title_short	Outcomes after gamma knife radiosurgery for intraventricular meningiomas
title_full	Outcomes after gamma knife radiosurgery for intraventricular meningiomas
title_fullStr	Outcomes after gamma knife radiosurgery for intraventricular meningiomas
title_full_unstemmed	Outcomes after gamma knife radiosurgery for intraventricular meningiomas
title_sort	Outcomes after gamma knife radiosurgery for intraventricular meningiomas
dc.contributor.advisor.none.fl_str_mv	Bin‑Alamer, Othman Flickinger, John Niranjan, Ajay Lunsford, L. Dade
dc.subject.none.fl_str_mv	Intraventricular meningiomas Meningioma Stereotactic radiosurgery Gamma Knife radiosurgery Edema Adverse radiation effects
topic	Intraventricular meningiomas Meningioma Stereotactic radiosurgery Gamma Knife radiosurgery Edema Adverse radiation effects Intraventricular meningiomas Meningioma Stereotactic radiosurgery Gamma Knife radiosurgery Edema Adverse radiation effects
dc.subject.keyword.none.fl_str_mv	Intraventricular meningiomas Meningioma Stereotactic radiosurgery Gamma Knife radiosurgery Edema Adverse radiation effects
description	Background Intraventricular meningiomas (IVMs) are rare tumors with considerable treatment-associated morbidity due to their challenging location. Treatment with stereotactic radiosurgery (SRS) is sparsely reported in the literature. We describe our experience over the last 35 years using Gamma knife radiosurgery (GKRS) for IVMs. Methods We retrospectively reviewed the GKRS database identifying 2501 meningiomas treated at the University of Pittsburgh Medical Center over the last 35 years. Nineteen patients with (12 males, mean age = 53.2 years, range 14–84) 20 IVMs were identified. Headache was the most frequent presenting symptom (N = 12), and the trigone of the lateral ventricle was the most common location (N = 18). The median tumor volume was 4.8 cc (range, 0.8–17). The median margin dose was 14 Gy (range, 12–25) delivered at 50% isodose line. Results At a median follow-up of 63.1 months (range, 6–322.4) symptom control was achieved in 18 (94.7%) patients. The overall progression-free survival (PFS) was 95% at 5 years, and 85% at 10-years. After Log-rank test, patients who underwent GKRS within 12 months after diagnosis (vs. ≥ 12 months, X2: 4.455, p = 0.035), patients treated with primary GKRS without prior biopsy (vs. prior biopsy, X2: 4.000, p = 0.046), and patients with WHO grade I meningioma (vs. WHO II, X2: 9.000, p = 0.003) had a longer PFS. Imaging showed peritumoral edema in seven cases at a median of 10.5 (range, 6.13–24.3) months after GKRS. Only three of these patients were symptomatic and were successfully managed with oral medications. Cox´s regression revealed that a V12Gy ≥ 10 cc [HR: 10.09 (95% CI: 2.11–48.21), p = 0.004], and tumor volume ≥ 8 cc [HR: 5.87 (95% CI: 1.28–26.97), p = 0.023] were associated with a higher risk of peritumoral edema. Conclusion GKRS is an effective and safe management option for intraventricular meningiomas. Early GKRS should be considered as a primary management modality for small and medium sized IVM and adjuvant management for residual IVMs.
publishDate	2022
dc.date.created.none.fl_str_mv	2022-07-06
dc.date.accessioned.none.fl_str_mv	2023-07-13T05:30:07Z
dc.date.available.none.fl_str_mv	2023-07-13T05:30:07Z
dc.date.embargoEnd.none.fl_str_mv	info:eu-repo/date/embargoEnd/2025-07-13
dc.type.none.fl_str_mv	article
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dc.type.document.none.fl_str_mv	Artículo
dc.type.spa.none.fl_str_mv	Artículo
dc.identifier.uri.none.fl_str_mv	https://repository.urosario.edu.co/handle/10336/40135
url	https://repository.urosario.edu.co/handle/10336/40135
dc.language.iso.none.fl_str_mv	spa
language	spa
dc.relation.uri.none.fl_str_mv	https://doi.org/10.1007/s11060-022-04091-8
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dc.rights.acceso.none.fl_str_mv	Restringido (Temporalmente bloqueado)
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rights_invalid_str_mv	Attribution-NonCommercial-NoDerivatives 4.0 International Restringido (Temporalmente bloqueado) http://creativecommons.org/licenses/by-nc-nd/4.0/ http://purl.org/coar/access_right/c_f1cf
dc.format.extent.none.fl_str_mv	9 pp
dc.format.mimetype.none.fl_str_mv	application/pdf
dc.publisher.none.fl_str_mv	Universidad del Rosario
dc.publisher.department.none.fl_str_mv	Escuela de Medicina y Ciencias de la Salud
dc.publisher.program.none.fl_str_mv	Especialización en Neurología
publisher.none.fl_str_mv	Universidad del Rosario
institution	Universidad del Rosario
dc.source.bibliographicCitation.none.fl_str_mv	1. Ostrom QT, Cioffi G, Waite K, Kruchko C, Barnholtz-Sloan JS (2021) CBTRUS statistical report: primary brain and other central nervous system tumors diagnosed in the United States in 2014– 2018. Neuro Oncol. 23:III1–III105 2. Nakamura M, Roser F, Bundschuh O, Vorkapic P, Samii M (2003) Intraventricular meningiomas: a review of 16 cases with reference to the literature. Surg Neurol 59(6):490–503 3. Pereira BJA, de Almeida AN, Paiva WS, de Aguiar PHP, Teixeira MJ, Marie SKN (2020) Natural history of intraventricular meningiomas: systematic review. Neurosurg Rev 43(2):513–523 4. Guidetti B, Delfini R, Gagliardi FM, Vagnozzi R (1985) Meningiomas of the lateral ventricles. Clinical, neuroradiologic, and surgical considerations in 19 cases. Surg Neurol. 24(4):364–370 5. Bhatoe HS, Singh P, Dutta V (2006) Intraventricular meningiomas: a clinicopathological study and review. Neurosurg Focus. 20(3):1–6 6. Güngör A, Danyeli AE, Akbaş A, Ekşi MŞ, Güdük M, Özduman K et al (2019) Ventricular meningiomas: surgical strategies and a new finding that suggest an origin from the choroid plexus epithelium. World Neurosurg 129:e177–e190 7. Bertalanffy A, Roessler K, Koperek O, Gelpi E, Prayer D, Neuner M et al (2006) Intraventricular meningiomas: a report of 16 cases. Neurosurg Rev 29(1):30–35 8. EL Cushing H (1938) Meningiomas their classification regional behavior life history and surgical end results. Hafner Publ Co., New York, pp 139–149 9. Muly S, Liu S, Lee R, Nicolaou S, Rojas R, Khosa F (2018) MRI of intracranial intraventricular lesions. Clin Imaging. 52:226–239. https:// doi. org/ 10. 1016/j. clini mag. 2018. 07. 021 10 Kim EY, Kim ST, Kim HJ, Jeon P, Kim KH, Byun HS (2009) Intraventricular meningiomas: radiological findings and clinical features in 12 patients. Clin Imaging. 33(3):175–180. https:// doi. org/ 10. 1016/j. clini mag. 2008. 09. 005 11. Vučković N, Kozić D, Vuleković P, Vučković D, Ostojić J, Semnic R (2010) MR and MRS characteristics of intraventricular meningioma. J Neuroimaging 20(3):294–296 12. Lee EJ, Kim JH, Park ES, Kim YH, Lee JK, Hong SH et al (2017) A novel weighted scoring system for estimating the risk of rapid growth in untreated intracranial meningiomas. J Neurosurg 127(5):971–980 13. Sheehan J, Pikis S, Islim AI, Chen CJ, Bunevicius A, Peker S et al (2022) An international multicenter matched cohort analysis of incidental meningioma progression during active surveillance or after stereotactic radiosurgery: the IMPASSE study. Neuro Oncol 24(1):116–124 14 Pikis S, Mantziaris G, Islim AI, Peker S, Samanci Y, Nabeel AM et al (2022) Stereotactic radiosurgery versus active surveillance for incidental, convexity meningiomas: a matched cohort analysis from the IMPASSE study. J Neurooncol. 157(1):121– 128. https:// doi. org/ 10. 1007/ s11060- 022- 03953-5 15 Grujicic D, Cavallo LM, Somma T, Illic R, Milicevic M, Raicevic S et al (2017) Intraventricular meningiomas: a series of 42 patients at a single institution and literature review. World Neurosurg. 97:178–188. https:// doi. org/ 10. 1016/j. wneu. 2016. 09. 068 16. Chen C, Lv L, Hu Y, Yin S, Zhou P, Jiang S (2019) Clinical features, surgical management, and long-term prognosis of intraventricular meningiomas. Medicine (Baltimore) 98(16):e15334 17. Schwartz C, Jahromi BR, Lönnrot K, Hafez A, Maekawa H, Lehecka M et al (2021) Clinical outcome after microsurgical resection of intraventricular trigone meningiomas: a single-centre analysis of 20 years and literature overview. Acta Neurochir (Wien) 163(3):677–687 18. Terada T, Yokote H, Tsuura M, Kinoshita Y, Takehara R, Kubo K et al (1999) Presumed intraventricular meningioma treated by embolisation and the gamma knife. Neuroradiology 41(5):334–337 19. Kim IY, Kondziolka D, Niranjan A, Flickinger JC, Lunsford LD (2009) Gamma knife radiosurgery for intraventricular meningiomas. Acta Neurochir (Wien) 151(5):447–452 20 Nundkumar N, Guthikonda M, Mittal S (2013) Peritumoral edema following Gamma Knife radiosurgery as the primary treatment for intraventricular meningiomas. J Clin Neurosci. 20(4):616–618. https:// doi. org/ 10. 1016/j. jocn. 2012. 03. 041 21. Mindermann T, Heckl S, Mack A (2020) High incidence of transient perifocal edema following upfront radiosurgery for intraventricular meningiomas. Acta Neurochir (Wien) 162(9):2177–2182 22 Samanci Y, Oktug D, Yilmaz M, Sengoz M, Peker S (2020) Efficacy of gamma knife radiosurgery in the treatment of intraventricular meningiomas. J Clin Neurosci. 80:38–42. https:// doi. org/ 10. 1016/j. jocn. 2020. 08. 016 23. Nakasu S, Nakasu Y (2020) Natural history of meningiomas: review with meta-analyses. Neurol Med Chir (Tokyo) 60(3):109–120 24 Pinzi V, Biagioli E, Roberto A, Galli F, Rizzi M, Chiappa F et al (2017) Radiosurgery for intracranial meningiomas: a systematic review and metaanalysis. Crit Rev Oncol Hematol. 113:122–134. https:// doi. org/ 10. 1016/j. critr evonc. 2017. 03. 005 25. Kondziolka D, Patel AD, Kano H, Flickinger JC, Lunsford LD (2016) Long-term outcomes after gamma knife radiosurgery for meningiomas. Am J Clin Oncol Cancer Clin Trials 39(5):453–457 26. Pollock BE, Stafford SL, Utter A, Giannini C, Schreiner SA (2003) Stereotactic radiosurgery provides equivalent tumor control to Simpson Grade 1 resection for patients with small- to mediumsize meningiomas. Int J Radiat Oncol Biol Phys 55(4):1000–1005 27. Bowden G, Faramand A, Mallella A, Wei Z, Patel K, Niranjan A et al (2021) Does the timing of radiosurgery after grade 1 meningioma resection affect long-term outcomes? Stereotact Funct Neurosurg 99(6):506–511 28. Shepard MJ, Xu Z, Kearns K, Li C, Chatrath A, Sheehan K et al (2021) Stereotactic radiosurgery for atypical (World Health Organization II) and anaplastic (World Health Organization III) meningiomas: results from a multicenter. Int Cohort Study Neurosurg 88(5):980–988 29. Cai R, Barnett GH, Novak E, Chao ST, Suh JH (2010) Principal risk of peritumoral edema after stereotactic radiosurgery for intracranial meningioma is tumor-brain contact interface area. Neurosurgery 66(3):513–522 30. Sheehan JP, Cohen-Inbar O, Ruangkanchanasetr R, Bulent Omay S, Hess J, Chiang V et al (2015) Post-radiosurgical edema associated with parasagittal and parafalcine meningiomas: a multicenter study. J Neurooncol 125(2):317–324 31. Patil CG, Hoang S, Borchers DJ, Sakamoto G, Soltys SG, Gibbs IC et al (2008) Predictors of peritumoral edema after stereotactic radiosurgery of supratentorial meningiomas. Neurosurgery 63(3):435–440
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spelling	Bin‑Alamer, Othman 80db0c1f-f55e-43b9-a971-4e8f2facd3f7Flickinger, Johnedff444d-b267-4c9b-ad63-4cc54dee7e16Niranjan, Ajay93f97373-9bfd-450a-917a-a0f0e7f97f8aLunsford, L. Dadece4bc5ba-b2fd-4068-8f83-01de650599d2Daza-Ovalle, AlbertoEspecialista en NeurologíaMaestríaFull timee1faedbd-04d0-4f8f-91c3-4d20d5f34b1c-12023-07-13T05:30:07Z2023-07-13T05:30:07Z2022-07-06info:eu-repo/date/embargoEnd/2025-07-13Background Intraventricular meningiomas (IVMs) are rare tumors with considerable treatment-associated morbidity due to their challenging location. Treatment with stereotactic radiosurgery (SRS) is sparsely reported in the literature. We describe our experience over the last 35 years using Gamma knife radiosurgery (GKRS) for IVMs. Methods We retrospectively reviewed the GKRS database identifying 2501 meningiomas treated at the University of Pittsburgh Medical Center over the last 35 years. Nineteen patients with (12 males, mean age = 53.2 years, range 14–84) 20 IVMs were identified. Headache was the most frequent presenting symptom (N = 12), and the trigone of the lateral ventricle was the most common location (N = 18). The median tumor volume was 4.8 cc (range, 0.8–17). The median margin dose was 14 Gy (range, 12–25) delivered at 50% isodose line. Results At a median follow-up of 63.1 months (range, 6–322.4) symptom control was achieved in 18 (94.7%) patients. The overall progression-free survival (PFS) was 95% at 5 years, and 85% at 10-years. After Log-rank test, patients who underwent GKRS within 12 months after diagnosis (vs. ≥ 12 months, X2: 4.455, p = 0.035), patients treated with primary GKRS without prior biopsy (vs. prior biopsy, X2: 4.000, p = 0.046), and patients with WHO grade I meningioma (vs. WHO II, X2: 9.000, p = 0.003) had a longer PFS. Imaging showed peritumoral edema in seven cases at a median of 10.5 (range, 6.13–24.3) months after GKRS. Only three of these patients were symptomatic and were successfully managed with oral medications. Cox´s regression revealed that a V12Gy ≥ 10 cc [HR: 10.09 (95% CI: 2.11–48.21), p = 0.004], and tumor volume ≥ 8 cc [HR: 5.87 (95% CI: 1.28–26.97), p = 0.023] were associated with a higher risk of peritumoral edema. Conclusion GKRS is an effective and safe management option for intraventricular meningiomas. Early GKRS should be considered as a primary management modality for small and medium sized IVM and adjuvant management for residual IVMs.Background Intraventricular meningiomas (IVMs) are rare tumors with considerable treatment-associated morbidity due to their challenging location. Treatment with stereotactic radiosurgery (SRS) is sparsely reported in the literature. We describe our experience over the last 35 years using Gamma knife radiosurgery (GKRS) for IVMs. Methods We retrospectively reviewed the GKRS database identifying 2501 meningiomas treated at the University of Pittsburgh Medical Center over the last 35 years. Nineteen patients with (12 males, mean age = 53.2 years, range 14–84) 20 IVMs were identified. Headache was the most frequent presenting symptom (N = 12), and the trigone of the lateral ventricle was the most common location (N = 18). The median tumor volume was 4.8 cc (range, 0.8–17). The median margin dose was 14 Gy (range, 12–25) delivered at 50% isodose line. Results At a median follow-up of 63.1 months (range, 6–322.4) symptom control was achieved in 18 (94.7%) patients. The overall progression-free survival (PFS) was 95% at 5 years, and 85% at 10-years. After Log-rank test, patients who underwent GKRS within 12 months after diagnosis (vs. ≥ 12 months, X2: 4.455, p = 0.035), patients treated with primary GKRS without prior biopsy (vs. prior biopsy, X2: 4.000, p = 0.046), and patients with WHO grade I meningioma (vs. WHO II, X2: 9.000, p = 0.003) had a longer PFS. Imaging showed peritumoral edema in seven cases at a median of 10.5 (range, 6.13–24.3) months after GKRS. Only three of these patients were symptomatic and were successfully managed with oral medications. Cox´s regression revealed that a V12Gy ≥ 10 cc [HR: 10.09 (95% CI: 2.11–48.21), p = 0.004], and tumor volume ≥ 8 cc [HR: 5.87 (95% CI: 1.28–26.97), p = 0.023] were associated with a higher risk of peritumoral edema. Conclusion GKRS is an effective and safe management option for intraventricular meningiomas. Early GKRS should be considered as a primary management modality for small and medium sized IVM and adjuvant management for residual IVMs.9 ppapplication/pdfhttps://repository.urosario.edu.co/handle/10336/40135spaUniversidad del RosarioEscuela de Medicina y Ciencias de la SaludEspecialización en Neurologíahttps://doi.org/10.1007/s11060-022-04091-8Attribution-NonCommercial-NoDerivatives 4.0 InternationalRestringido (Temporalmente bloqueado)EL AUTOR, manifiesta que la obra objeto de la presente autorización es original y la realizó sin violar o usurpar derechos de autor de terceros, por lo tanto la obra es de exclusiva autoría y tiene la titularidad sobre la misma. PARGRAFO: En caso de presentarse cualquier reclamación o acción por parte de un tercero en cuanto a los derechos de autor sobre la obra en cuestión, EL AUTOR, asumirá toda la responsabilidad, y saldrá en defensa de los derechos aquí autorizados; para todos los efectos la universidad actúa como un tercero de buena fe. EL AUTOR, autoriza a LA UNIVERSIDAD DEL ROSARIO, para que en los términos establecidos en la Ley 23 de 1982, Ley 44 de 1993, Decisión andina 351 de 1993, Decreto 460 de 1995 y demás normas generales sobre la materia, utilice y use la obra objeto de la presente autorización. -------------------------------------- POLITICA DE TRATAMIENTO DE DATOS PERSONALES. Declaro que autorizo previa y de forma informada el tratamiento de mis datos personales por parte de LA UNIVERSIDAD DEL ROSARIO para fines académicos y en aplicación de convenios con terceros o servicios conexos con actividades propias de la academia, con estricto cumplimiento de los principios de ley. Para el correcto ejercicio de mi derecho de habeas data cuento con la cuenta de correo habeasdata@urosario.edu.co, donde previa identificación podré solicitar la consulta, corrección y supresión de mis datos.http://creativecommons.org/licenses/by-nc-nd/4.0/http://purl.org/coar/access_right/c_f1cf1. Ostrom QT, Cioffi G, Waite K, Kruchko C, Barnholtz-Sloan JS (2021) CBTRUS statistical report: primary brain and other central nervous system tumors diagnosed in the United States in 2014– 2018. Neuro Oncol. 23:III1–III1052. Nakamura M, Roser F, Bundschuh O, Vorkapic P, Samii M (2003) Intraventricular meningiomas: a review of 16 cases with reference to the literature. Surg Neurol 59(6):490–5033. Pereira BJA, de Almeida AN, Paiva WS, de Aguiar PHP, Teixeira MJ, Marie SKN (2020) Natural history of intraventricular meningiomas: systematic review. Neurosurg Rev 43(2):513–5234. Guidetti B, Delfini R, Gagliardi FM, Vagnozzi R (1985) Meningiomas of the lateral ventricles. Clinical, neuroradiologic, and surgical considerations in 19 cases. Surg Neurol. 24(4):364–3705. Bhatoe HS, Singh P, Dutta V (2006) Intraventricular meningiomas: a clinicopathological study and review. Neurosurg Focus. 20(3):1–66. Güngör A, Danyeli AE, Akbaş A, Ekşi MŞ, Güdük M, Özduman K et al (2019) Ventricular meningiomas: surgical strategies and a new finding that suggest an origin from the choroid plexus epithelium. World Neurosurg 129:e177–e1907. Bertalanffy A, Roessler K, Koperek O, Gelpi E, Prayer D, Neuner M et al (2006) Intraventricular meningiomas: a report of 16 cases. Neurosurg Rev 29(1):30–358. EL Cushing H (1938) Meningiomas their classification regional behavior life history and surgical end results. Hafner Publ Co., New York, pp 139–1499. Muly S, Liu S, Lee R, Nicolaou S, Rojas R, Khosa F (2018) MRI of intracranial intraventricular lesions. Clin Imaging. 52:226–239. https:// doi. org/ 10. 1016/j. clini mag. 2018. 07. 02110 Kim EY, Kim ST, Kim HJ, Jeon P, Kim KH, Byun HS (2009) Intraventricular meningiomas: radiological findings and clinical features in 12 patients. Clin Imaging. 33(3):175–180. https:// doi. org/ 10. 1016/j. clini mag. 2008. 09. 00511. Vučković N, Kozić D, Vuleković P, Vučković D, Ostojić J, Semnic R (2010) MR and MRS characteristics of intraventricular meningioma. J Neuroimaging 20(3):294–29612. Lee EJ, Kim JH, Park ES, Kim YH, Lee JK, Hong SH et al (2017) A novel weighted scoring system for estimating the risk of rapid growth in untreated intracranial meningiomas. J Neurosurg 127(5):971–98013. Sheehan J, Pikis S, Islim AI, Chen CJ, Bunevicius A, Peker S et al (2022) An international multicenter matched cohort analysis of incidental meningioma progression during active surveillance or after stereotactic radiosurgery: the IMPASSE study. Neuro Oncol 24(1):116–12414 Pikis S, Mantziaris G, Islim AI, Peker S, Samanci Y, Nabeel AM et al (2022) Stereotactic radiosurgery versus active surveillance for incidental, convexity meningiomas: a matched cohort analysis from the IMPASSE study. J Neurooncol. 157(1):121– 128. https:// doi. org/ 10. 1007/ s11060- 022- 03953-515 Grujicic D, Cavallo LM, Somma T, Illic R, Milicevic M, Raicevic S et al (2017) Intraventricular meningiomas: a series of 42 patients at a single institution and literature review. World Neurosurg. 97:178–188. https:// doi. org/ 10. 1016/j. wneu. 2016. 09. 06816. Chen C, Lv L, Hu Y, Yin S, Zhou P, Jiang S (2019) Clinical features, surgical management, and long-term prognosis of intraventricular meningiomas. Medicine (Baltimore) 98(16):e1533417. Schwartz C, Jahromi BR, Lönnrot K, Hafez A, Maekawa H, Lehecka M et al (2021) Clinical outcome after microsurgical resection of intraventricular trigone meningiomas: a single-centre analysis of 20 years and literature overview. Acta Neurochir (Wien) 163(3):677–68718. Terada T, Yokote H, Tsuura M, Kinoshita Y, Takehara R, Kubo K et al (1999) Presumed intraventricular meningioma treated by embolisation and the gamma knife. Neuroradiology 41(5):334–33719. Kim IY, Kondziolka D, Niranjan A, Flickinger JC, Lunsford LD (2009) Gamma knife radiosurgery for intraventricular meningiomas. Acta Neurochir (Wien) 151(5):447–45220 Nundkumar N, Guthikonda M, Mittal S (2013) Peritumoral edema following Gamma Knife radiosurgery as the primary treatment for intraventricular meningiomas. J Clin Neurosci. 20(4):616–618. https:// doi. org/ 10. 1016/j. jocn. 2012. 03. 04121. Mindermann T, Heckl S, Mack A (2020) High incidence of transient perifocal edema following upfront radiosurgery for intraventricular meningiomas. Acta Neurochir (Wien) 162(9):2177–218222 Samanci Y, Oktug D, Yilmaz M, Sengoz M, Peker S (2020) Efficacy of gamma knife radiosurgery in the treatment of intraventricular meningiomas. J Clin Neurosci. 80:38–42. https:// doi. org/ 10. 1016/j. jocn. 2020. 08. 01623. Nakasu S, Nakasu Y (2020) Natural history of meningiomas: review with meta-analyses. Neurol Med Chir (Tokyo) 60(3):109–12024 Pinzi V, Biagioli E, Roberto A, Galli F, Rizzi M, Chiappa F et al (2017) Radiosurgery for intracranial meningiomas: a systematic review and metaanalysis. Crit Rev Oncol Hematol. 113:122–134. https:// doi. org/ 10. 1016/j. critr evonc. 2017. 03. 00525. Kondziolka D, Patel AD, Kano H, Flickinger JC, Lunsford LD (2016) Long-term outcomes after gamma knife radiosurgery for meningiomas. Am J Clin Oncol Cancer Clin Trials 39(5):453–45726. Pollock BE, Stafford SL, Utter A, Giannini C, Schreiner SA (2003) Stereotactic radiosurgery provides equivalent tumor control to Simpson Grade 1 resection for patients with small- to mediumsize meningiomas. Int J Radiat Oncol Biol Phys 55(4):1000–100527. Bowden G, Faramand A, Mallella A, Wei Z, Patel K, Niranjan A et al (2021) Does the timing of radiosurgery after grade 1 meningioma resection affect long-term outcomes? Stereotact Funct Neurosurg 99(6):506–51128. Shepard MJ, Xu Z, Kearns K, Li C, Chatrath A, Sheehan K et al (2021) Stereotactic radiosurgery for atypical (World Health Organization II) and anaplastic (World Health Organization III) meningiomas: results from a multicenter. Int Cohort Study Neurosurg 88(5):980–98829. Cai R, Barnett GH, Novak E, Chao ST, Suh JH (2010) Principal risk of peritumoral edema after stereotactic radiosurgery for intracranial meningioma is tumor-brain contact interface area. Neurosurgery 66(3):513–52230. Sheehan JP, Cohen-Inbar O, Ruangkanchanasetr R, Bulent Omay S, Hess J, Chiang V et al (2015) Post-radiosurgical edema associated with parasagittal and parafalcine meningiomas: a multicenter study. J Neurooncol 125(2):317–32431. Patil CG, Hoang S, Borchers DJ, Sakamoto G, Soltys SG, Gibbs IC et al (2008) Predictors of peritumoral edema after stereotactic radiosurgery of supratentorial meningiomas. Neurosurgery 63(3):435–440instname:Universidad del Rosarioreponame:Repositorio Institucional EdocURIntraventricular meningiomasMeningiomaStereotactic radiosurgeryGamma Knife radiosurgeryEdemaAdverse radiation effectsIntraventricular meningiomasMeningiomaStereotactic radiosurgeryGamma Knife radiosurgeryEdemaAdverse radiation effectsOutcomes after gamma knife radiosurgery for intraventricular meningiomasResultads despues de radiocirugía gamma en meningiomas intraventricularesarticleArtículoArtículohttp://purl.org/coar/resource_type/c_6501Escuela de Medicina y Ciencias de la SaludORIGINALOutcomes-after-gamma-knife-radiosurgery.pdfOutcomes-after-gamma-knife-radiosurgery.pdfapplication/pdf951544https://repository.urosario.edu.co/bitstreams/b9a42d0a-ee8a-4044-933f-3dddcbc19b6d/download033971113a3348de9d4c4e5d1add8b02MD51LICENSElicense.txtlicense.txttext/plain1483https://repository.urosario.edu.co/bitstreams/6dd51486-f1f8-44b1-9477-8d4abee8e566/downloadb2825df9f458e9d5d96ee8b7cd74fde6MD52CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8899https://repository.urosario.edu.co/bitstreams/24539cef-68cb-448e-8cbb-a03e866b9ed3/download3b6ce8e9e36c89875e8cf39962fe8920MD53TEXTOutcomes-after-gamma-knife-radiosurgery.pdf.txtOutcomes-after-gamma-knife-radiosurgery.pdf.txtExtracted texttext/plain38617https://repository.urosario.edu.co/bitstreams/774f17a6-7fa2-4d97-8279-5ec306315535/download85967cc18fde7c7b021885b9b7f9f5d6MD54THUMBNAILOutcomes-after-gamma-knife-radiosurgery.pdf.jpgOutcomes-after-gamma-knife-radiosurgery.pdf.jpgGenerated Thumbnailimage/jpeg4692https://repository.urosario.edu.co/bitstreams/1a6df452-b5dd-43b8-96db-758693809927/downloadd5deaea642e418eb4809e3053f09a3caMD5510336/40135oai:repository.urosario.edu.co:10336/401352023-07-13 03:03:48.658http://creativecommons.org/licenses/by-nc-nd/4.0/Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttps://repository.urosario.edu.coRepositorio institucional EdocURedocur@urosario.edu.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

Outcomes after gamma knife radiosurgery for intraventricular meningiomas

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