Literature DB >> 31953611

Postoperative oscillatory brain activity as an add-on prognostic marker in diffuse glioma.

Vera Belgers1,2, Tianne Numan1,2, Shanna D Kulik1,2, Arjan Hillebrand3, Philip C de Witt Hamer2,4, Jeroen J G Geurts1, Jaap C Reijneveld2,5, Pieter Wesseling2,6, Martin Klein2,7, Jolanda Derks1,2, Linda Douw8,9,10.   

Abstract

INTRODUCTION: Progression-free survival (PFS) in glioma patients varies widely, even when stratifying for known predictors (i.e. age, molecular tumor subtype, presence of epilepsy, tumor grade and Karnofsky performance status). Neuronal activity has been shown to accelerate tumor growth in an animal model, suggesting that brain activity may be valuable as a PFS predictor. We investigated whether postoperative oscillatory brain activity, assessed by resting-state magnetoencephalography is of additional value when predicting PFS in glioma patients.
METHODS: We included 27 patients with grade II-IV gliomas. Each patient's oscillatory brain activity was estimated by calculating broadband power (0.5-48 Hz) in 56 epochs of 3.27 s and averaged over 78 cortical regions of the Automated Anatomical Labeling atlas. Cox proportional hazard analysis was performed to test the predictive value of broadband power towards PFS, adjusting for known predictors by backward elimination.
RESULTS: Higher broadband power predicted shorter PFS after adjusting for known prognostic factors (n = 27; HR 2.56 (95% confidence interval (CI) 1.15-5.70); p = 0.022). Post-hoc univariate analysis showed that higher broadband power also predicted shorter overall survival (OS; n = 38; HR 1.88 (95% CI 1.00-3.54); p = 0.038).
CONCLUSIONS: Our findings suggest that postoperative broadband power is of additional value in predicting PFS beyond already known predictors.

Entities:  

Keywords:  Beamforming; Glioma; Magnetoencephalography (MEG); Overall survival; Progression-free survival

Year:  2020        PMID: 31953611     DOI: 10.1007/s11060-019-03386-7

Source DB:  PubMed          Journal:  J Neurooncol        ISSN: 0167-594X            Impact factor:   4.130


  2 in total

1.  Early EEG hyperexcitability is associated with decreased survival in newly diagnosed IDH-wildtype glioma.

Authors:  Steven Tobochnik; Emily Lapinskas; Jayne Vogelzang; Keith L Ligon; Jong Woo Lee
Journal:  J Neurooncol       Date:  2022-06-17       Impact factor: 4.506

2.  Non-invasively measured brain activity and radiological progression in diffuse glioma.

Authors:  T Numan; S D Kulik; B Moraal; J C Reijneveld; C J Stam; P C de Witt Hamer; J Derks; A M E Bruynzeel; M E van Linde; P Wesseling; M C M Kouwenhoven; M Klein; T Würdinger; F Barkhof; J J G Geurts; A Hillebrand; L Douw
Journal:  Sci Rep       Date:  2021-09-23       Impact factor: 4.379

  2 in total

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