Direct cortical stimulation with cylindrical depth electrodes in the interhemispheric fissure for leg motor evoked potential monitoring

Autor: Mario García-Conde, Pedro Javier Pérez-Lorensu, Victor García-Marín, Héctor Roldán-Delgado, Luis Perez-Orribo, Ángel Saponaro-González, Pablo Febles-Garcia, Liberto Brage, Julio Plata-Bello
Rok vydání: 2019
Předmět:
Adult
Intracranial Arteriovenous Malformations
Male
Adolescent
Intraoperative Neurophysiological Monitoring
Stimulation
Sensory system
Subdural Space
Transcranial Direct Current Stimulation
050105 experimental psychology
03 medical and health sciences
0302 clinical medicine
Physiology (medical)
Evoked Potentials
Somatosensory
Medicine
Humans
0501 psychology and cognitive sciences
Evoked potential
Tibial nerve
Neurophysiological Monitoring
Aged
Leg
business.industry
Brain Neoplasms
05 social sciences
Motor Cortex
Brain
Equipment Design
Middle Aged
Evoked Potentials
Motor
Sensory Systems
Intensity (physics)
Electrodes
Implanted
Neurology
Somatosensory evoked potential
Sensory Thresholds
Electrode
Anesthesia
Intravenous
Feasibility Studies
Female
Neurology (clinical)
Tibial Nerve
business
030217 neurology & neurosurgery
Biomedical engineering
Zdroj: Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology. 131(1)
ISSN: 1872-8952
Popis: Objective To evaluate cylindrical depth electrodes in the interhemispheric fissure as an alternative to subdural strip electrodes for direct cortical stimulation (DCS) leg motor evoked potential (MEP) monitoring. Methods A cylindrical depth electrode was positioned in the interhemispheric fissure of 37 patients who underwent supratentorial brain surgery. Leg sensory and motor cortices were localized by highest tibial nerve somatosensory evoked potential amplitude and lowest DCS leg MEP threshold; the lowest-threshold electrode was then used for DCS leg MEP monitoring. Results Intraoperative leg MEPs were obtained from all the patients in the series. The mean intensity applied for leg MEP monitoring with the cylindrical depth electrode was 15.2 ± 4.0 mA. No complications secondary to neurophysiological monitoring were detected. Conclusions Lower extremity MEPs were consistently recorded using a multi-contact cylindrical depth electrode in the interhemispheric fissure by DCS. Significance Cylindrical depth electrodes may be a safe and effective alternative for DCS in the interhemispheric fissure, where subdural strips are difficult to place.
Databáze: OpenAIRE
Externí odkaz: