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Towards a shared electrogenesis mechanism in direct cortical responses, axono-cortical evoked potentials, and cortico-cortical evoked potentials.
Clin Neurophysiol
January 2025
Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, University College London, London, UK; Victor Horsley Department of Neurosurgery, National Hospital for Neurology and Neurosurgery, Queen Square, London, UK; Department of Neurosurgery, Institute of Neuroscience, Cleveland Clinic London, Grosvenor Place, London, UK. Electronic address:
Cortico-cortical evoked potential and language mapping: A meta-analysis.
Epilepsy Behav
August 2024
Medical College of Wisconsin, Department of Neurology, Milwaukee, WI, USA. Electronic address:
Purpose: The purpose of this meta-analysis was to determine the best available evidence for the use of cortico-cortical evoked potential (CCEP) for language mapping.
Methods: PubMed/Medline/Google Scholar/Cochrane and Scopus electronic databases were searched for articles using CCEP for language mapping. CCEP data was obtained including the area of the cortex generating CCEP, resection data, and post-resection language outcomes.
Cortico-cortical evoked potentials of language tracts in minimally invasive glioma surgery guided by Penfield stimulation.
Clin Neurophysiol
May 2024
Department of Neurosurgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
Objective: We investigated the feasibility of recording cortico-cortical evoked potentials (CCEPs) in patients with low- and high-grade glioma. We compared CCEPs during awake and asleep surgery, as well as those stimulated from the functional Broca area and recorded from the functional Wernicke area (BtW), and vice versa (WtB). We also analyzed CCEP properties according to tumor location, histopathology, and aphasia.
View Article and Find Full Text PDFIntraoperative neurophysiology in pediatric neurosurgery: a historical perspective.
Childs Nerv Syst
October 2023
Section of Neurosurgery, Department of Neurosciences, Biomedicine and Movement Sciences, University Hospital, Verona, Italy.
Introduction: Intraoperative neurophysiology (ION) has been established over the past three decades as a valuable discipline to improve the safety of neurosurgical procedures with the main goal of reducing neurological morbidity. Neurosurgeons have substantially contributed to the development of this field not only by implementing the use and refinement of ION in the operating room but also by introducing novel techniques for both mapping and monitoring of neural pathways.
Methods: This review provides a personal perspective on the evolution of ION in a variety of pediatric neurosurgical procedures: from brain tumor to brainstem surgery, from spinal cord tumor to tethered cord surgery.
Functional Magnetic Resonance Imaging and Diffusion Tensor Imaging for Language Mapping in Brain Tumor Surgery: Validation With Direct Cortical Stimulation and Cortico-Cortical Evoked Potential.
Korean J Radiol
June 2023
Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.
Objective: Functional magnetic resonance imaging (fMRI) and diffusion tensor imaging-derived tractography (DTI-t) contribute to the localization of language areas, but their accuracy remains controversial. This study aimed to investigate the diagnostic performance of preoperative fMRI and DTI-t obtained with a simultaneous multi-slice technique using intraoperative direct cortical stimulation (DCS) or corticocortical evoked potential (CCEP) as reference standards.
Materials And Methods: This prospective study included 26 patients (23-74 years; male:female, 13:13) with tumors in the vicinity of Broca's area who underwent preoperative fMRI and DTI-t.
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