Limitation of Intraoperative Transcranial Electrical Stimulation-Motor Evoked Potential Monitoring During Brain Tumor Resection Adjacent to the Primary Motor Cortex
Annals of Rehabilitation Medicine
;
: 767-772, 2018.
Article
in English
| WPRIM
| ID: wpr-717776
ABSTRACT
Transcranial electrical stimulation-motor evoked potential (TES-MEP) is a valuable intraoperative monitoring technique during brain tumor surgery. However, TES can stimulate deep subcortical areas located far from the motor cortex. There is a concern about false-negative results from the use of TES-MEP during resection of those tumors adjacent to the primary motor cortex. Our study reports three cases of TES-MEP monitoring with false-negative results due to deep axonal stimulation during brain tumor resection. Although no significant change in TES-MEP was observed during surgery, study subjects experienced muscle weakness after surgery. Deep axonal stimulation of TES could give false-negative results. Therefore, a combined method of TES-MEP and direct cortical stimulation-motor evoked potential (DCS-MEP) or direct subcortical stimulation should be considered to overcome the limitation of TES-MEP.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Axons
/
Brain
/
Brain Neoplasms
/
Monitoring, Intraoperative
/
Muscle Weakness
/
Evoked Potentials
/
Transcranial Direct Current Stimulation
/
Methods
/
Motor Cortex
Language:
English
Journal:
Annals of Rehabilitation Medicine
Year:
2018
Type:
Article
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