Abstract
Background
Incomplete resection of glioblastoma is discussed controversially in the era of combined radiochemotherapy.
Objective
The aim of this study was to analyze the benefit of subtotal tumor resection for glioblastoma patients as this was recently questioned in the era of radiochemotherapy.
Methods
Overall, 209 patients undergoing surgery for newly diagnosed WHO grade IV gliomas were retrospectively analyzed, and pre- and postoperative tumor volumes were manually segmented (cm3). Survival analyses were performed, including prognostic factors such as age, Karnofsky performance score (KPS), O6-methylguanine-DNA-methyltransferase (MGMT) promoter methylation status, and adjuvant treatment regimen.
Results
Pre- and postoperative tumor volume is significantly associated with pre- and postoperative KPS, as well as age (p < 0.001). Postoperative tumor volume remained a significant prognostic factor in a multivariate analysis, independent of other prognostic factors (hazard ratio 1.0365, 95% confidence interval 1.0235–1.0497, p < 0.001).
Conclusions
In the era of molecularly-driven radiochemotherapy, glioblastoma surgery remains a major prognostic factor. Even in situations in which a gross total resection cannot be achieved, maximum safe reduction of tumor burden should be attempted.
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Change history
19 March 2018
Due to a metadata tagging error the names of Stephanie E. Combs and Jan S. Kirschke were indexed incorrectly. Stephanie E. is the author’s given name, and Jan S. is the author’s given name.
19 March 2018
Due to a metadata tagging error the names of Stephanie E. Combs and Jan S. Kirschke were indexed incorrectly. Stephanie E. is the author?s given name, and Jan S. is the author?s given name.
19 March 2018
Due to a metadata tagging error the names of Stephanie E. Combs and Jan S. Kirschke were indexed incorrectly. Stephanie E. is the author?s given name, and Jan S. is the author?s given name.
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Disclosure
Benedikt Wiestler received funding from KKF TU Munich. Stefanie Bette, Thomas Huber, Bernhard Meyer, and Jens Gempt are consultants for Brainlab AG, Munich. Claus Zimmer has served on scientific advisory boards for Philips and Bayer Schering; serves as co-editor on the Advisory Board of Clinical Neuroradiology; has received speaker honoraria from Bayer-Schering and Philips; and has received research support and investigator fees for clinical studies from Biogen Idec, Quintiles, MSD Sharp & Dome, Boehringer Ingelheim, Inventive Health Clinical UK Ltd., Advance Cor, Brainsgate, Pfizer, Bayer-Schering, Novartis, Roche, Servier, Penumbra, WCT GmbH, Syngis, SSS International Clinical Research, PPD Germany GmbH, Worldwide Clinical Trials Ltd., Phenox, Covidien, Actelion, Medivation, Medtronic, Harrison Clinical Research, Concentric, Penumbra, Pharmtrace, Reverse Medical Corp., Premier Research Germany Ltd., Surpass Medical Ltd., and GlaxoSmithKline. Jan S. Kirschke received an ERC grant and has received speaker honoraria from Philips. Melanie Barz, Julia Gerhardt, Niels Buchmann, Stephanie E. Combs, Friederike Schmidt-Graf, Claire Delbridge, Yu-Mi Ryang, and Florian Ringel have nothing to disclose.
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10434_2017_6253_MOESM1_ESM.jpg
Electronic supplementary Fig. 1 Box plots for pre- and postoperative tumor volume and association with age and pre- and postoperative KPS. KPS Karnofsky performance score. Supplementary material 1 (JPEG 118 kb)
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Bette, S., Barz, M., Wiestler, B. et al. Prognostic Value of Tumor Volume in Glioblastoma Patients: Size Also Matters for Patients with Incomplete Resection. Ann Surg Oncol 25, 558–564 (2018). https://doi.org/10.1245/s10434-017-6253-0
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DOI: https://doi.org/10.1245/s10434-017-6253-0