title: A new tool to predict survival after radiosurgery alone for newly diagnosed cerebral metastases.
abstract: Many patients with few cerebral metastases receive radiosurgery alone. The goal of this study was to create a tool to estimate the survival of such patients. To identify characteristics associated with survival, nine variables including radiosurgery dose, age, gender, Eastern cooperative oncology group performance score (ECOG-PS), primary tumor type, number/size of cerebral metastases, location of cerebral metastases, extra-cerebral metastases and time between cancer diagnosis and radiosurgery were analyzed in 214 patients. On multivariate analysis, age (p=0.03), ECOG-PS (p=0.02) and extra-cerebral metastases (p<0.01) had significant impacts on survival. Scoring points for each patient were obtained from 12-month survival rates (in %) related to the significant variables divided by 10. Addition of the scoring points of the three variables resulted in a patient's total predictive score. Two groups were designed, A (10-14 points) and B (16-17 points). Twelve-month survival rates were 33% and 77%, respectively (p<0.001). Median survival times were 8 and 20 months, respectively. Because most patients of group A died from extra-cerebral disease and/or new cerebral lesions, early systemic treatment and additional WBI should be considered. As cause of death in group B was mostly new cerebral metastases, additional WBI appears even more important for this group.
authors: Department of Radiation Oncology, Faculty of Medicine, University of Lubeck, Schleswig-Holstein, Germany E-mail : Rades.Dirk@gmx.net.
authors: Dirk
authors: D
authors: Rades
authors: Stefan
authors: S
authors: Huttenlocher
authors: Liesa
authors: L
authors: Dziggel
authors: Oliver
authors: O
authors: Blanck
authors: Dagmar
authors: D
authors: Hornung
authors: Khoa Trong
authors: KT
authors: Mai
authors: Trang Thuy
authors: TT
authors: Ngo
authors: Thai
authors: T
authors: Van Pham
authors: Steven
authors: S
authors: Schild
mesh_terms: D001932:Brain Neoplasms / Q000401:mortality* / Q000473:pathology* / Q000601:surgery; D016371:Cranial Irradiation / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D011379:Prognosis; D016634:Radiosurgery / Q000379:methods; D012189:Retrospective Studies; D015996:Survival Rate