P17.01.A Reradiation by Glioblastoma recurrence with VMAT technique

Abstract Background Patients who have been treated with reirradiation for recurrent glioma reported survival benefits. This study aims to investigate whether re-irradiation of 45Gy dose can increase the overall patients. Material and Methods A retrospective analysis 35 patients re-irradiated high-grade recurrence between 2012 2020 was performed. All included met following criteria: a) histopathological confirmation primary brain cancer at initial diagnosis; b) a history radiation; c) histological and/or imaging modality recurrence. Outcome metrics survival, prognostic factors treatment-related toxicity. Results After end median 11 months (95% confidence interval, 7-14 months). From evaluated in current after progression free 6 (3.8 - 8 months) while first radiation 13 (8 17.9 Our findings suggest that might prolong rates. Conclusion Recurrent Glioblastoma WHO IV is associated less than year majority profound tumor-related symptoms .The results this may survival.