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Awake Craniotomy for Eloquent Region Glioblastoma Classified by Tumor Location-A Retrospective and Prospective Cohort Study.

Yuzhe Li·Shimeng Weng·Jiahan Dong·Jiangwei Wang·Zhong Zhang·Xing Fan·Yinyan Wang·Wenbin Ma·Tao Jiang·Shengyu Fang
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Abstract

INTRODUCTION: The efficacy of awake craniotomy (AC) with intraoperative mapping for glioblastoma (GBM) in eloquent regions remains debated. This study aims to evaluate functional and survival outcomes of GBM patients undergoing AC stratified by tumor locations. METHODS: A combined retrospective (2015-2023, n = 114: 43 AC vs. 71 standard craniotomy) and prospective cohort (2023-2025, n = 28: 13 AC vs. 15 standard craniotomy) of GBM patients with motor/language-eloquent tumors was analyzed. Tumors were classified into motor subtypes (I: precentral gyrus; II: premotor/supplementary motor; III: internal capsule posterior limb; IV: other) and language subtypes (I: Broca's/precentral; II: postcentral/supramarginal gyrus; III: Wernicke's; IV: insular; V: other). Outcomes included extent of resection (EOR), postoperative motor/language recovery, overall survival (OS), and progression-free survival (PFS). RESULTS: The retrospective cohort demonstrated that AC has advantages in functional preservation across various motor/language subtypes. However, AC was associated with significantly deteriorated survival outcomes specifically in precentral gyrus GBMs. A prospective cohort study, enrolling only precentral gyrus GBMs for validation, yielded results consistent with the retrospective findings: worsened OS and PFS (OS: HR = 3.223, p = 0.0450; PFS: HR = 2.374, p = 0.0476); reduced EOR (AC: 74.3% ± 5.3%; standard craniotomy: 86.9% ± 12.3%, p = 0.0470); and better motor recovery. CONCLUSIONS: Functional preservation and survival outcomes of AC in GBM exhibited subtype-specific correlations with tumor locations. AC with intraoperative mapping effectively preserves neurological function in GBM patients. However, for tumors involving the precentral gyrus, the AC approach carries greater risks than benefits and should be considered with caution. TRIAL REGISTRATION: Strategic Intervention on Preserving Motor Function During Awake Craniotomy: NCT05143788. Strategic Intervention on Preserving Language Function During Awake Craniotomy: NCT05143775.

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AdultAgedFemaleHumansMaleMiddle AgedBrain MappingBrain NeoplasmsCohort StudiesCraniotomyGlioblastomaProspective StudiesRetrospective StudiesWakefulnessawake craniotomyglioblastomaprospective cohorttumor locationJournal ArticleRandomized Controlled Trial

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Yuzhe Li, Shimeng Weng, Jiahan Dong, Jiangwei Wang, Zhong Zhang, Xing Fan, Yinyan Wang, Wenbin Ma, Tao Jiang, Shengyu Fang. 2026. Awake Craniotomy for Eloquent Region Glioblastoma Classified by Tumor Location-A Retrospective and Prospective Cohort Study.. https://doi.org/10.1002/cns.71126

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Journal Article; Randomized Controlled Trial resourceAdult subjectAged subjectBrain Mapping subjectBrain Neoplasms subjectCohort Studies subjectCraniotomy subjectFemale subjectHumans subjectJournal Article subjectMale subjectMiddle Aged subjectRandomized controlled trials study

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