• 1. Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P. R. China;
  • 2. School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, P. R. China;
  • 3. Department of Radiology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P. R. China;
LI Zhenlin, Email: HX_lizhenlin@126.com
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For refractory epilepsy requiring surgical treatment in clinic, precise preoperative positioning of the epileptogenic zone is the key to improving the success rate of clinical surgical treatment. Although the use of electrical stimulation to locate epileptogenic zone has been widely carried out in many medical centers, the preoperative implantation evaluation of stereoelectroencephalography (SEEG) and the interpretation of electrical stimulation induced EEG activity are still not perfect and rigorous. Especially, there are still technological limitations and unknown areas regarding electrode implantation mode, stimulation parameters design, and surgical prognosis correlation. In this paper, the clinical background, application status, technical progress and development trend of SEEG-based stereo-electric stimulation-induced cerebral electrical activity in the evaluation of refractory epilepsy are reviewed, and applications of this technology in clinical epileptogenic zone localization and cerebral cortical function evaluation are emphatically discussed. Additionally, the safety during both of high-frequency and low-frequency electrical stimulations which are commonly used in clinical evaluation of refractory epilepsy are also discussed.

Citation: CHEN Wenjing, ZHANG Yue, LAI Dakun, LI Zhenlin. Advances in clinical application of stereoelectroencephalography-based electrical stimulation in the evaluation of refractory epilepsy. West China Medical Journal, 2023, 38(5): 645-652. doi: 10.7507/1002-0179.202212112 Copy

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