Adverse prognosis and distinct progression patterns after concurrent chemoradiotherapy for glioblastoma with synchronous subventricular zone and corpus callosum invasion
Journal
Radiotherapy and Oncology
Journal Volume
118
Journal Issue
1
Pages
16-23
Date Issued
2016
Author(s)
Liang T.H.-K.
Tseng H.-M.
You S.-L.
Abstract
Background and purpose The subventricular zone (SVZ) and the corpus callosum (CC) invasion status are separately associated with adverse prognosis for glioblastoma. We investigated the prognosis and progression patterns of glioblastoma with and without synchronous SVZ and CC (sSVZCC) invasion. Material and methods Glioblastoma patients completing concurrent chemoradiotherapy with temozolomide were retrospectively categorized by the preoperative sSVZCC invasion status. The associations between sSVZCC invasion and the survival and progression patterns were analyzed. Results In total, 108 patients, including 36 with sSVZCC invasion, were followed for a median period of 60.2 (range 34.2-86.3) months. The median overall survival (OS) of patients with and without sSVZCC were 18.6 and 26.4 months, respectively (p = 0.005). Using multivariate analyses with the factors of age, performance, surgery extent, and tumor size, sSVZCC invasion remained significant for a poor OS (hazard ratio, 1.96; 95% confidence interval, 1.19-3.21). The rates of progression at tumor bed, preoperative edematous areas, bilateral hemispheres, and ventricles for tumors with and without sSVZCC invasion were 75% and 63.9% (p = 0.282), 41.7% and 9.7% (p < 0.001), 47.2% and 13.9% (p < 0.001), and 38.9% and 13.9% (p = 0.006), respectively. Conclusions The sSVZCC invasion status determined the distinct prognosis and progression areas of glioblastoma, which suggests individualized radiotherapy and drug administration strategies. ? 2015 Elsevier Ireland Ltd. All rights reserved. Radiotherapy and Oncology 118 (2016) 1623.
Other Subjects
temozolomide; adult; adverse outcome; age; aged; Article; brain ventricle; cancer prognosis; cancer surgery; cancer survival; chemoradiotherapy; confidence interval; controlled study; corpus callosum; correlation analysis; disease course; drug dose increase; edema; female; follow up; glioblastoma; hazard ratio; hemisphere; human; major clinical study; male; middle aged; multiple cycle treatment; multivariate analysis; neuroimaging; overall survival; preoperative period; priority journal; retrospective study; subventricular zone; tumor growth; tumor invasion; tumor volume; young adult; Brain Neoplasms; brain ventriculography; corpus callosum; diagnostic imaging; disease course; glioblastoma; nuclear magnetic resonance imaging; pathology; prognosis; proportional hazards model; very elderly; x-ray computed tomography; Adult; Aged; Aged, 80 and over; Brain Neoplasms; Cerebral Ventricles; Cerebral Ventriculography; Chemoradiotherapy; Corpus Callosum; Disease Progression; Female; Glioblastoma; Humans; Magnetic Resonance Imaging; Male; Middle Aged; Neoplasm Invasiveness; Prognosis; Proportional Hazards Models; Retrospective Studies; Tomography, X-Ray Computed; Young Adult
Publisher
Elsevier Ireland Ltd
Type
journal article