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 REVIEW ARTICLE
Year : 2020  |  Volume : 68  |  Issue : 2  |  Page : 290--298

Role of Gamma Knife Radiosurgery in the Management of Intracranial Gliomas


1 Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India
2 Department of Neurosurgery, Post Graduate Institute of Medical Education and Research, Chandigarh, India
3 Department of Radiodiagnosis, Post Graduate Institute of Medical Education and Research, Chandigarh, India
4 Department of Radiotherapy, Post Graduate Institute of Medical Education and Research, Chandigarh, India
5 Department of Medical Physics, Panjab University, Chandigarh, India

Correspondence Address:
Manjul Tripathi
Department of Neurosurgery, Neurosurgery Office, 5th Floor, Nehru Hospital, Post Graduate Institute of Medical Education and Research, Chandigarh - 160 012
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0028-3886.284356

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Gamma knife for gliomas is a relatively obscure treatment modality with few reports and small series available on the same. An extensive search of English Language literature yields no comprehensive reviews of the same. We here, attempt to review the available literature on gamma knife for all types of gliomas: Low grade, High grade, recurrent, and also for pediatric populations. We used keywords such as “Gamma Knife Glioma,” “Stereotactic Radiosurgery Glioma,” “Gamma Knife,” “Adjuvant therapy Glioma” “Recurrent Glioma” on PubMed search engine, and articles were selected with respect to their use of gamma Knife for Gliomas and outcome for the same. These were then analyzed and salient findings were elucidated. This was combined with National Comprehensive Cancer Network guidelines for the same and also included our own initial experience with these tumors. Gamma-knife improved long term survival and quality of life in patients with low grade gliomas. In pediatric low grade gliomas, it may be considered as a treatment modality with a marginal dose of 12–14 Gy, especially in eloquent structures such as brain stem glioma, anterior optic pathway hypothalamic glioma. However, in newly diagnosed high-grade glioma gamma knife radiosurgery (GKRS) is not recommended because of a lack of definitive evidence in tumor control and quality of life. GKRS may find its role in palliative care of recurrent gliomas irrespective of type and grade. Inspite of growing experience with GKRS for gliomas, there is no Level I evidence in support of GKRS, hence better designed randomized controlled trials with long term outcomes are warranted. Although this modality is not a “one size fits all' therapy, it has its moments when chosen correctly and applied wisely. Gliomas being the most common tumors operated in any neurosurgical setting, knowledge about this modality and its application is essential and useful.






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