Stimulation-induced seizures and CSF leakage occurred in 13.7% and 5.9% of our cases. The stimulation and electrode implantation procedures lasted for a median of 2.0 h and 75 h, respectively. EOCSM was successful in 94.1% of patients.

The lesion was usually located on the left side (80.4%) and affected the frontal lobe (51.0%). Results: The mean age of our participants was 58 years (☙.4 years). We assessed the effectiveness and safety of our approach by measuring the extent of resection and recording the periprocedural complications, respectively. Methods: Fifty-one patients undergoing EOCSM for glioma resection in our institution formed the sample study of our current retrospective study.

Our current study aims to evaluate the efficacy and safety of extra-operative stimulation and mapping via implanted subdural electrodes with or without depth (EOCSM), offering an alternative approach when awake mapping is contraindicated. Background: Aggressive resection without compromising the patient’s neurological status remains a significant challenge in treating intracranial gliomas.

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