Survival trends in glioma: Experience at a tertiary care centre

Background: Even after decades of research in the field of gliomas, the overall prognosis is still quite dismal. Several factors have been proposed that affect the outcome and survival length of patients with a glioma. Here, we present a series of 471 patients, who underwent surgical resection of their glioma at a tertiary level neurosurgical centre. Materials and Methods: We noted retrospective data of patients' age, histological tumor grade, and whether or not intraoperative magnetic resonance imaging (MRI) was used, and assessed the survival length of these patients from the day of surgery. Results: The overall survival in our series was approximately 14 months. Predictably, those with age less than 40 years and those with Karnofsky performance score (KPS) >= 80 had longer survival than those with a higher age and KPS <80; those with World Health Organisation (WHO) grade IV lesions had the shortest survival length compared to all the other grades. However, while comparing survival among other tumor grades, we did not find significant difference. Further, use of intraoperative MRI did not offer any statistically significant difference in survival. Conclusion: In addition to the conventional prognostic factors we need more definate ways to accurately predict survival in patients harbouring a glioma. Probably, assessing molecular characteristics of the individual tumors, such as presence of isocitrate dehydrogenase (IDH) mutation versus wild-type IDH, would help us in predicting survival more accurately.