ABSTRACT
Background: Patients with high grade gliomas have poor survival even with aggressive multimodality approach. The aim of our study is to evaluate the predicting factors affecting the survival outcome in patients with high grade gliomas (HGG). Materials and methods: 46 patients diagnosed to have high grade gliomas (HGG) treated in our Radiotherapy department during the period of March 2014 to March 2017 were analyzed in this single centre retrospective study. All patients underwent maximal safe surgery followed by postoperative radiotherapy with or without temozolamide chemotherapy. Data regarding the patient age, gender, performance status, histology, grade of the tumor, tumor location, extent of surgery, radiotherapy, and chemotherapy details were collected and analyzed. The differences in clinical characteristics and treatment variables were analyzed by chi square test and overall survival analysis using Kaplan Mayer method. The Cox proportional hazards regression model was used to determine statistically significant variables related to survival. Results: The median survival of patients with HGG in this study was 9 months. The median survival of patients with grade III and IV glioma was 19 and 4 months respectively. In univariate analysis histology, grade, laterality were identified to have prognostic significance. The result of multivariate analysis showed that performance status, grade, histology, extent of surgery is significant for survival. S. Jeeva, V. Vanitha, K. Chandralekha, M. Sornam, Balasubramanium, P. Vidya. Predictive factors for survival and outcome in patients with high grade gliomas: A single centre retrospective study. IAIM, 2019; 6(3): 24-31. Page 25 Conclusion: Our study showed that histology, grade, extent of surgery is the significant factors in assessing the prognosis of patients with HGG. The survival of HGG was poor in spite of combined modality treatment.