European practice on neurovascular late effects after pediatric radiotherapy: considerations on dose planning and follow-up – a HARMONIC/SIOPE ROWG survey
DOI:
https://doi.org/10.2340/1651-226X.2025.43028Keywords:
pediatrics, late effects, Neurovascular, external beam radiotherapy, brain tumorsAbstract
Background and purpose: The risk of developing neurovascular late effects after radiotherapy is an area of concern when treating pediatric brain tumor patients. However, knowledge is sparse regarding best practice for clinical management during the radiotherapy (RT) planning process and follow-up examinations. This study therefore aimed at mapping how the risk of neurovascular late effects is considered for pediatric brain or skull base tumor patients treated with radiotherapy in Europe.
Materials and methods: Two web-based surveys ‑ a RT and a pediatric oncology (PO) survey - were distributed to members of the SIOPE radiotherapy working group or PANCARE and SIOPE brain tumor group, respectively.
Results: The RT survey was completed by 47 participants from 18 different European countries and the PO survey by 33 participants (mostly pediatric (neuro)oncologists) from 15 countries. Overall, the answers highlighted that neurovascular late effects are currently not well included in European clinical practice, neither at the time of radiotherapy nor in the follow-up process.
Interpretation: There is a need for raising general awareness about the topic, as well as for potential risk-stratified prevention measures and follow-up guidelines.
Downloads
References
Otth M, Wyss J, Scheinemann K. Long-term follow-up of pediatric CNS tumor survivors – a selection of relevant long-term issues. Children. 2022;9:447.
https://doi.org/10.3390/children9040447 DOI: https://doi.org/10.3390/children9040447
Waxer JF, Wong K, Modiri A, Charpentier AM, Moiseenko V, Ronckers CM, et al. Risk of cerebrovascular events among childhood and adolescent patients receiving cranial radiation therapy: A PENTEC normal tissue outcomes comprehensive review. Int J Radiat Oncol Biol Phys. 2024;119:417−30.
https://doi.org/10.1016/j.ijrobp.2022.06.079 DOI: https://doi.org/10.1016/j.ijrobp.2022.06.079
Thierry-Chef I, Timmermann B, Journy N, Bernier MO, McNally R, Dabin J, et al. Health effects of ionising radiation in paediatrics undergoing either cardiac fluoroscopy or modern radiotherapy (The HARMONIC project). EPJ Nuclear Sci Technol. 2023;9:22.
https://doi.org/10.1051/epjn/2023009 DOI: https://doi.org/10.1051/epjn/2023009
Toussaint L, Peters S, Mikkelsen R, Karabegovic S, Bäumer C, Muren LP, et al. Delineation atlas of the circle of Willis and the large intracranial arteries for evaluation of doses to neurovascular structures in pediatric brain tumor patients treated with radiation therapy. Acta Oncol. 2021;60:1392–98.
https://doi.org/10.1080/0284186X.2021.1945679 DOI: https://doi.org/10.1080/0284186X.2021.1945679
Kralik SF, Mereniuk TR, Grignon L, Shih CS, Ho CY, Finke W, et al. Radiation induced cerebral microbleeds in pediatric patients with brain tumors treated with proton radiation therapy. Int J Radiat Oncol Biol Phys. 2018;102:1465–71.
https://doi.org/10.1016/j.ijrobp.2018.07.2016 DOI: https://doi.org/10.1016/j.ijrobp.2018.07.2016
Eysenbach G. Improving the quality of web surveys: the checklist for reporting results of internet e-surveys (CHERRIES). J Med Internet Res. 2004;6:34.
https://doi.org/10.2196/jmir.6.3.e34 DOI: https://doi.org/10.2196/jmir.6.3.e34
Kenney LB, Ames BL, Huang MS, Yock T, Bowers DC, Nekhlyudov L, et al. Consensus recommendations for managing childhood cancer survivors at risk of stroke after cranial irradiation: a Delphi study. Neurology. 2022;99:e1755–66.
https://doi.org/10.1212/WNL.0000000000201014 DOI: https://doi.org/10.1212/WNL.0000000000201014
Additional Files
Published
How to Cite
Issue
Section
Categories
License
Copyright (c) 2025 Laura Toussaint, Louise Tram Henriksen, Karen Van Beek, Stephanie Bolle, Charlotte Demoor-Goldschmidt, Jenny Gains, Morten Høyer, Geert O. Janssens, Rolf-Dieter Kortmann, Catia Martins Pedro, Beate Timmermann, Katrin Scheinemann, Yasmin Lassen-Ramshad

This work is licensed under a Creative Commons Attribution 4.0 International License.
