Outcomes and prognostic stratification of patients with recurrent glioblastoma treated with salvage stereotactic radiosurgery

OBJECTIVE Glioblastoma (GBM) is the most malignant form of astrocytoma. The average survival is 6–10 months in patients with recurrent GBM (rGBM). In this study, the authors evaluated the role of stereotactic radiosurgery (SRS) in patients with rGBMs. METHODS The authors performed a retrospective review of their brain tumor database (1997–2016). Overall survival (OS) and progression-free survival (PFS) after salvage SRS were the primary...