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Scientific article
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English

Intraoperative subcortico-cortical evoked potentials of the visual pathway under general anesthesia

Published inClinical Neurophysiology, vol. 132, no. 7, p. 1381-1388
Publication date2021
Abstract

Objective: To assess whether intraoperative subcortical mapping of the visual pathways during brain surgeries was feasible. Methods: Subcortico-cortical evoked potentials (SCEPs: 30 stimulations/site, biphasic single pulse, 1.3 Hz, 0.2 ms/phase, maximum 10 mA; bipolar probe) were measured in 12 patients for stimulation of the optic radiation, Meyer's loop or optic nerve. Recorded sites were bilateral central, parietal, parieto-occipital, occipital (subdermal scalp electrodes, 5-4000 Hz). The minimum distances from the stimulation locations, i.e. the closest border of the resection cavity to the diffusion tensor imaging based visual pathways, were evaluated postoperatively (smallest distance across coronal, sagittal and axial planes).

Keywords
  • Neuromonitoring
  • Optic radiations
  • Visual evoked potentials
Citation (ISO format)
BOEX, Colette et al. Intraoperative subcortico-cortical evoked potentials of the visual pathway under general anesthesia. In: Clinical Neurophysiology, 2021, vol. 132, n° 7, p. 1381–1388. doi: 10.1016/j.clinph.2021.02.399
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ISSN of the journal1388-2457
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Creation10/10/2021 7:05:00 PM
First validation10/10/2021 7:05:00 PM
Update time03/16/2023 2:27:21 AM
Status update03/16/2023 2:27:20 AM
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