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Review
. 2022 Nov;198(11):971-980.
doi: 10.1007/s00066-022-01973-8. Epub 2022 Aug 29.

DEGRO practical guideline for central nervous system radiation necrosis part 2: treatment

Affiliations
Review

DEGRO practical guideline for central nervous system radiation necrosis part 2: treatment

Denise Bernhardt et al. Strahlenther Onkol. 2022 Nov.

Abstract

Purpose: The Working Group for Neurooncology of the German Society for Radiation Oncology (DEGRO; AG NRO) in cooperation with members of the Neurooncological Working Group of the German Cancer Society (DKG-NOA) aimed to define a practical guideline for the diagnosis and treatment of radiation-induced necrosis (RN) of the central nervous system (CNS).

Methods: Panel members of the DEGRO working group invited experts, participated in a series of conferences, supplemented their clinical experience, performed a literature review, and formulated recommendations for medical treatment of RN, including bevacizumab, in clinical routine.

Conclusion: Diagnosis and treatment of RN requires multidisciplinary structures of care and defined processes. Diagnosis has to be made on an interdisciplinary level with the joint knowledge of a neuroradiologist, radiation oncologist, neurosurgeon, neuropathologist, and neurooncologist. If the diagnosis of blood-brain barrier disruptions (BBD) or RN is likely, treatment should be initiated depending on the symptoms, location, and dynamic of the lesion. Multiple treatment options are available (such as observation, surgery, steroids, and bevacizumab) and the optimal approach should be discussed in an interdisciplinary setting. In this practice guideline, we offer detailed treatment strategies for various scenarios.

Keywords: Bevacizumab; Blood–brain barrier disruptions; Brain metastases; Glioma; Radiation necrosis; Stereotactic radiotherapy; Steroids.

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Conflict of interest statement

D. Bernhardt reports personal fees and honoraria from Accuray Inc., AstraZeneca, and Novocure GmbH outside the submitted work. DB’s spouse is employed at Gilead Science. L. König reports grants from Ruprecht-Karls Universität Heidelberg, and personal fees from Accuray Inc. and Novocure GmbH outside the submitted work. J. Debus: institution received research grants from Merck Serono, institution received consultation honoraria from Merck serono, JD received travel reimbursement from Merck Serono, institution received research grants from Siemens Healthineers and Accuray. S. Rieken is consultant for Brainlab AG (Munich, Germany) and Ulrich Medical (Ulm, Germany). S.K. received honoraria from Nexstim Plc (Helsinki, Finland), Spineart Deutschland GmbH (Frankfurt, Germany), Medtronic (Meerbusch, Germany), and Carl Zeiss Meditec (Oberkochen, Germany). M. Thomas reports personal fees, honoraria for advisory boards, and research funding from AstraZeneca, Beigene, Bristol-Myers Squibb, Boehringer Ingelheim, Celgene, Chugai, Daiichi Sankyo, GlaxoSmithKline, Janssen Oncology, Lilly, Merck, MSD, Novartis, Pfizer, Roche, Sanofi, and Takeda. F. Giordano reports research grants, honoraria, and travel expenses from Carl Zeiss Meditec AG and NOXXON Pharma AG, personal fees from MVZ Venusberg GmbH, and consulting/speaker honoraria from Bristol Myers Squibb, Medac GmbH, Merck Sharp & Dohme, Elsevier, AstraZeneca, and Guerbet SA. A.-L. Grosu, S.M. Krieg, W. Wick, B. Wiestler, F. Schmidt-Graf, F. Sahm, J. Gempt, B. Meyer, B.J. Krause, C. Petersen, R. Fietkau, A. Wittig-Sauerwein, G. Tabatabai, P. Hau, J. Steinbach, S.E. Combs, and the Expert Panel of the German Society of Radiation Oncology (DEGRO) declare that they have no competing interests.

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