Technical Aspects of Motor and Language Mapping in Glioma PatientsShow full item record
Title | Technical Aspects of Motor and Language Mapping in Glioma Patients |
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Author | Al-Adli N. N.; Young J. S.; Sibih Y. E.; Berger M. S. |
Date | 2023 |
Abstract | Gliomas are infiltrative primary brain tumors that often invade functional cortical and subcortical regions, and they mandate individualized brain mapping strategies to avoid postoperative neurological deficits. It is well known that maximal safe resection significantly improves survival, while postoperative deficits minimize the benefits associated with aggressive resections and diminish patients¿ quality of life. Although non-invasive imaging tools serve as useful adjuncts, intraoperative stimulation mapping (ISM) is the gold standard for identifying functional cortical and subcortical regions and minimizing morbidity during these challenging resections. Current mapping methods rely on the use of low-frequency and high-frequency stimulation, delivered with monopolar or bipolar probes either directly to the cortical surface or to the subcortical white matter structures. Stimulation effects can be monitored through patient responses during awake mapping procedures and/or with motor-evoked and somatosensory-evoked potentials in patients who are asleep. Depending on the patient¿s preoperative status and tumor location and size, neurosurgeons may choose to employ these mapping methods during awake or asleep craniotomies, both of which have their own benefits and challenges. Regardless of which method is used, the goal of intraoperative stimulation is to identify areas of non-functional tissue that can be safely removed to facilitate an approach trajectory to the equator, or center, of the tumor. Recent technological advances have improved ISM¿s utility in identifying subcortical structures and minimized the seizure risk associated with cortical stimulation. In this review, we summarize the salient technical aspects of which neurosurgeons should be aware in order to implement intraoperative stimulation mapping effectively and safely during glioma surgery. ¿ 2023 by the authors. |
Link | https://doi.org/10.3390/cancers15072173
https://repository.tcu.edu/handle/116099117/61128 |
Department | Burnett School of Medicine |
Subject | awake craniotomy
functional brain mapping glioma intraoperative stimulation mapping language mapping maximal safe resection motor mapping stimulation techniques |
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