Biomaterial Database

[Epilepsy Surgery Monitoring Intraoperative Electrocorticography]. 2023

Taketoshi Maehara

Department of Neurosurgery, Tokyo Medical and Dental University.

Intraoperative electrocorticography(ECoG)is an important monitoring modality to delineate a focus area in cases with MRI-positive lesions. Previous reports have agreed on the usefulness of an intraoperative ECoG, especially in pediatric patients with focal cortical dysplasia. I will demonstrate a detailed methodology for intraoperative ECoG monitoring in the focus resection of a 2-year-old boy with focal cortical dysplasia who achieved a seizure-free outcome. Although the intraoperative ECoG has a distinct clinical value, it is associated with several issues, such as the focus area being decided by interictal spikes rather than seizure onset and being deeply affected by the anesthesia condition. Therefore, we need to keep in mind its limitation. Recently, interictal high-frequency oscillation has been recognized as an important biomarker in epilepsy surgery. Advancements in intraoperative ECoG monitoring are required in the near future.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D002648	Child	A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL.	Children
D002675	Child, Preschool	A child between the ages of 2 and 5.	Children, Preschool,Preschool Child,Preschool Children
D004569	Electroencephalography	Recording of electric currents developed in the brain by means of electrodes applied to the scalp, to the surface of the brain, or placed within the substance of the brain.	EEG,Electroencephalogram,Electroencephalograms
D004827	Epilepsy	A disorder characterized by recurrent episodes of paroxysmal brain dysfunction due to a sudden, disorderly, and excessive neuronal discharge. Epilepsy classification systems are generally based upon: (1) clinical features of the seizure episodes (e.g., motor seizure), (2) etiology (e.g., post-traumatic), (3) anatomic site of seizure origin (e.g., frontal lobe seizure), (4) tendency to spread to other structures in the brain, and (5) temporal patterns (e.g., nocturnal epilepsy). (From Adams et al., Principles of Neurology, 6th ed, p313)	Aura,Awakening Epilepsy,Seizure Disorder,Epilepsy, Cryptogenic,Auras,Cryptogenic Epilepsies,Cryptogenic Epilepsy,Epilepsies,Epilepsies, Cryptogenic,Epilepsy, Awakening,Seizure Disorders
D005500	Follow-Up Studies	Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease.	Followup Studies,Follow Up Studies,Follow-Up Study,Followup Study,Studies, Follow-Up,Studies, Followup,Study, Follow-Up,Study, Followup
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000069280	Electrocorticography	Recording of brain electrical activities in which the electrodes are placed directly on the CEREBRAL CORTEX.	Electrocorticography (EcoG),Extraoperative ECoG,Extraoperative Electrocorticography,Intracranial EEG,Intracranial Electroencephalography,Intraoperative ECoG,Intraoperative Electrocorticography,ECoG, Extraoperative,ECoG, Intraoperative,ECoGs, Extraoperative,ECoGs, Intraoperative,EEG, Intracranial,EEGs, Intracranial,Electrocorticographies,Electrocorticographies (EcoG),Electrocorticographies, Extraoperative,Electrocorticographies, Intraoperative,Electrocorticography, Extraoperative,Electrocorticography, Intraoperative,Electroencephalographies, Intracranial,Electroencephalography, Intracranial,Extraoperative ECoGs,Extraoperative Electrocorticographies,Intracranial EEGs,Intracranial Electroencephalographies,Intraoperative ECoGs,Intraoperative Electrocorticographies
D016343	Monitoring, Intraoperative	The constant checking on the state or condition of a patient during the course of a surgical operation (e.g., checking of vital signs).	Intraoperative Monitoring
D016896	Treatment Outcome	Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series.	Rehabilitation Outcome,Treatment Effectiveness,Clinical Effectiveness,Clinical Efficacy,Patient-Relevant Outcome,Treatment Efficacy,Effectiveness, Clinical,Effectiveness, Treatment,Efficacy, Clinical,Efficacy, Treatment,Outcome, Patient-Relevant,Outcome, Rehabilitation,Outcome, Treatment,Outcomes, Patient-Relevant,Patient Relevant Outcome,Patient-Relevant Outcomes