TY - JOUR AU - Mirian, Christian AU - Jensen, Lasse Rehné AU - Hoffmann, Adam Gorm AU - Juratli, Tareq A AU - Maier, Andrea Daniela AU - Lindner, Pernilla AU - Broechner, Anders AU - Torp, Sverre H AU - Shih, Helen A AU - Morshed, Ramin A AU - Young, Jacob S AU - Magill, Stephen T AU - Stummer, Walter AU - Spille, Dorothee Cäcilia AU - Brokinkel, Benjamin AU - Proescholdt, Martin AU - Kuroi, Yasuhiro AU - Gousias, Konstantinos AU - Simon, Matthias AU - Prat-Acin, Ricardo AU - Goutagny, Stéphane AU - Wach, Johannes AU - Güresir, Erdem AU - Yamamoto, Junkoh AU - Kim, Young Zoon AU - Lee, Joo Ho AU - Kim, Daniel W AU - Koshy, Matthew AU - Cannon, Donald M AU - Shrieve, Dennis C AU - Suh, Chang-Ok AU - Chang, Jong Hee AU - Kamenova, Maria AU - Straumann, Sven AU - Soleman, Jehuda AU - Eyüpoglu, Ilker Y AU - Catalan, Tony AU - Lui, Austin AU - Theodosopoulos, Philip V AU - McDermott, Michael W AU - Góes, Pedro AU - Wang, Fang AU - Souhami, Luis AU - Guiot, Marie-Christine AU - Csonka, Tamás AU - Endo, Toshiki AU - Gupta, Tejpal AU - Patel, Akash J AU - Klisch, Tiemo J AU - Kim, Jun Won AU - Maiuri, Francesco AU - Barresi, Valeria AU - Tabernero, María Dolores AU - Skyrman, Simon AU - Krause, Mechthild AU - Law, Ian AU - Kristensen, Bjarne Winther AU - Munch, Tina Nørgaard AU - Meling, Torstein AU - Fugleholm, Kåre AU - Blanche, Paul AU - Mathiesen, Tiit TI - Fractionated radiotherapy adjuvant to surgery of WHO-2 meningioma with and without gross total resection: a multicenter, retrospective cohort study of 1,452 patients. JO - Journal of neuro-oncology VL - 176 IS - 3 SN - 0167-594X CY - Dordrecht [u.a.] PB - Springer Science + Business Media B.V M1 - DKFZ-2026-00319 SP - 201 PY - 2026 N1 - #DKTKZFB26# / #NCTZFB26# AB - Purpose:The role of adjuvant fractionated radiotherapy (aFRT) after gross total resection (GTR) of WHO-2 meningiomas remains unclear. We aimed to estimate the effect of aFRT on recurrence risk and survival following GTR and subtotal resection (STR).Methods:We analyzed 1452 patients with WHO-2 from our international, multicenter database (followed between 1989 and 2019). Outcomes were recurrence (10-year follow-up) and death (5-year follow-up). Risk estimates were obtained using competing risks and survival analysis. Average treatment effects were estimated by G-computation, adjusted for potential confounding by age, sex, Simpson grade, Ki-67 proliferation index, location, country group (universal healthcare or not), and year of treatment initiation. The robustness of findings was examined through sensitivity analyses.Results:Overall, 276 of 1452 patients (19.0 KW - Atypical meningioma (Other) KW - Meningioma (Other) KW - Progression (Other) KW - Radiotherapy (Other) KW - Recurrence (Other) KW - Resection (Other) LB - PUB:(DE-HGF)16 C6 - pmid:41661453 DO - DOI:10.1007/s11060-025-05349-7 UR - https://inrepo02.dkfz.de/record/309806 ER -