Acta Neurochirurgica (2020) 162:3025–3030
The function-based resection using trans-cortical approach for removing insular diffuse glioma shares a positive benefit-to-risk ratio with a low rate of permanent morbidity.
Method The technique requires intraoperative functional brain mapping to be performed under awake condition using direct electrical stimulations at both cortical and subcortical levels to identify brain connectivity supporting neurocognition.
Conclusion The trans-cortical approach is a safe and efficient technique to remove insular diffuse glioma. Intraoperative functional brain mapping under awake condition allows preserving brain connectivity and tailoring the resection. Great care must be taken in preventing vascular damages, and particularly the lenticulostriate arteries.
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