Lessons from brain mapping in surgery for low-grade glioma: insights into associations between tumour and brain plasticity.
Hugues Duffau
https://pubmed.ncbi.nlm.nih.gov/16033690/Actively Recruiting
Led by University Hospital, Montpellier · Updated on 2025-09-29
12
Participants Needed
1
Research Sites
1 weeks
Total Duration
Researchers are conducting an experimental study on patients with low-grade infiltrative glioma OMS Type II who will undergo awake brain surgery at the University Hospital of Montpellier. The study aims to understand how electrical impulses used by neurosurgeons to map brain function during surgery spread through the brain and to identify which nerve networks are inhibited by these impulses. This research involves detailed brain activity recordings before, during, and after tumor removal. During the awake neurosurgery, direct electrical stimulation will be applied to the brain while recording the brains electrical activity using electroencephalography EEG and electrocorticography ECoG. These recordings will capture the brains responses to stimulation, called evoked potentials, to analyze how the brain reacts to this mapping technique. Data collection and processing are overseen by specialized teams, ensuring quality and consent verification throughout the study. Participants will have their brains electrical activity recorded before surgery with EEG, and before and after tumor removal with ECoG. The collected data will be stored digitally and analyzed using specialized software to identify evoked potentials. The primary outcome measured is the evoked potential response within two months after surgery. The study involves close data monitoring, consent verification, and aims to provide detailed understanding of brain network responses during awake neurosurgery for low-grade glioma.
CONDITIONS
Measure of the Potential Evoked by Electric Stimulation
B
BARBAS Sandrine
A
Anne VERCHERE
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University Hospital, Montpellier
Lead Sponsor
National Development and Research Institutes, Inc.
Collaborating Sponsor
You may qualify if you...
You will not qualify if you...
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - Surgery day plus immediate post-operative period
Participants undergo awake brain surgery where direct electric stimulation is applied to the brain to record evoked potentials.
1 surgery visit (in-person)
Duration - Up to 2 months after surgery
Participants are monitored for surgical recovery and assessment of brain responses to electric stimulation.
Follow-up visits as scheduled by the clinical team
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
NA
Model
SINGLE_GROUP
Primary Purpose
SUPPORTIVE_CARE
Number of Arms
1
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Hugues Duffau
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https://pubmed.ncbi.nlm.nih.gov/17046857/Martin J B Taphoorn, Martin Klein
https://pubmed.ncbi.nlm.nih.gov/14980531/University Hospital, Montpellier
Lead Sponsor
National Development and Research Institutes, Inc.
Collaborating Sponsor