RT Journal Article SR Electronic T1 Pre-operative Seizures in Patients With Single Brain Metastasis Treated With Resection Plus Whole-Brain Irradiation and a Boost JF In Vivo JO In Vivo FD International Institute of Anticancer Research SP 2705 OP 2709 DO 10.21873/invivo.12091 VO 34 IS 5 A1 DIRK RADES A1 JASPAR WITTELER A1 TROELS W. KJAER A1 SOEREN TVILSTED A1 STEVEN E. SCHILD YR 2020 UL http://iv.iiarjournals.org/content/34/5/2705.abstract AB Background/Aim: Seizures can be the initial symptom of brain metastases. This study investigated pre-treatment seizures in patients with a single lesion. Patients and Methods: Pre-operative seizures were analyzed in 104 patients with a single brain metastasis receiving resection plus whole-brain irradiation and a boost. Prevalence of seizures, risk factors and associations with survival (OS) were evaluated. Results: Thirty patients (34.6%) had seizures prior to neurosurgery. Significant associations between seizures and investigated characteristics were not found. However, age ≤61 years showed a trend (p=0.117) for increased incidence of seizures. Time from diagnosis of malignancy until neurosurgery >12 months was significantly associated with improved OS on univariate analysis (p=0.003). Trends for a positive association with OS were found for no seizures (p=0.054), female gender (p=0.066) and breast cancer (p=0.098). On multivariate analysis, time until neurosurgery >12 months was independently associated (p=0.019) with better OS, and seizures showed a trend (p=0.119) for improved OS. Conclusions: Considering the high prevalence of seizures in this cohort, regular screening and monitoring of these patients appears reasonable. This applies particularly to patients aged ≤61 years.