Related Experiment Video
Updated: Jul 9, 2026
08:50
Use of Cerebral Open-Flow Microperfusion for the Longitudinal Collection of Interstitial Fluid in an Animal Model of Glioblastoma
Published on: December 23, 2025
Stroke prevention during surgery for deep-seated gliomas.
1Department of Neurosurgery, University of Bonn, 53105 Bonn, Germany. neuloh@ukb.uni-bonn.de
Neurophysiologie Clinique = Clinical Neurophysiology
|December 18, 2007
Summary
Motor evoked potentials (MEPs) monitoring effectively detects subcortical ischemia during deep-seated glioma surgery. This technique helps prevent permanent motor deficits by identifying and managing impending motor tract ischemia early.
Area of Science:
- Neurosurgery
- Neurology
- Neurophysiology
Background:
- Surgery for deep-seated gliomas risks motor deficits due to pyramidal tract ischemia.
- Motor evoked potentials (MEPs) are established indicators of motor tract ischemia in cerebrovascular surgery.
Purpose of the Study:
- To assess the feasibility and clinical utility of MEP monitoring for preventing ischemic complications during insular glioma surgery.
- To correlate intraoperative MEP findings with postoperative neurological outcomes.
Main Methods:
- MEPs were recorded during 100 surgeries for insular gliomas.
- Intraoperative MEP data were analyzed and correlated with postoperative clinical and imaging results.
Main Results:
- Useful MEP monitoring was achieved in 89% of cases.
- Stable MEPs correlated with unimpaired motor outcomes in 53% of assessable cases.
- MEP monitoring enabled intervention to prevent motor deficits in 44% of cases with MEP changes, averting permanent paresis in many.
Conclusions:
- Ischemia during deep-seated glioma surgery often occurs independently of tumor resection proximity.
- MEP monitoring is crucial for early ischemia detection, helping to prevent stroke and permanent motor deficits in select patients.
