AI Summary & Key Takeaways
AI InsightPrognostic Nutritional Index (PNI) has been evaluated in various cancers (such as lung, esophagus, and pancreas), and patients with a low PNI score have been associated with a poor prognosis for overall survival (OS).
📌 3 Key Takeaways
Abstract
Background/Aim: Glioblastoma multiforme (GBM) is the most common primary malignant brain tumor subtype with a poor prognosis despite various treatments. Some prognostic markers on survival (such as age, Eastern Cooperative Oncology Group Performance Score (ECOG-PS), isocitrated hydrogenase (IDH) status, alpha thalassemia/mental retardation syndrome X-linked (ATRX) mutation status, possibility of extensive surgery) have been defined. Prognostic Nutritional Index (PNI) has been evaluated in various cancers (such as lung, esophagus, and pancreas), and patients with a low PNI score have been associated with a poor prognosis for overall survival (OS). Our study aimed to examine the effectiveness of molecular and demographic characteristics and preoperative PNI score that may affect OS in GBM patients. Methods: In this retrospective cohort study, GBM diagnosed patients who were 18 years old or older, were included in the study. We measured their pretreatment PNI score and performed multivariate Cox regression analyses of OS in GBM patients. Results: A total of 107 patients were included in the study. Median age was 58 (range, 32-83) years. 72 patients (67.3%) were male and 35 patients (32.7%) were female. The mean preoperative PNI level was calculated as 50.5. The median overall-survival (mOS) was 19.7 months and the median time to progression (mTTP) was 8.1 months. There was no statistically significant result on overall survival in the univariate analysis of patients with PNI>50.5 (P=0.121). In multivariate analysis, being 70 years or older (P=0.012), IDH-1 wild and ATRX mutant patients (P=0.016), IDH-1 mutant and ATRX wild patients (P=0.037), and TTP 12 months and older (P