Evaluation of EEG, EMG and clinical semiology in the lateral location of bilateral extremities tonic seizures of focal epilepsy

• Published in: Ji chu yi xue yu lin chuang = Jichu yixue yu linchuang = Basic medical sciences and clinics Vol. 43; no. 8; pp. 1289 - 1293
• Main Author: SUN Li, LI Fang, WANG Xiaomei, LIU Xingzhou
• Format: Journal Article
• Language: Chinese
• Published: Institute of Basic Medical Sciences and Peking Union Medical College Hospital, Chinese Academy of Medical Sciences / Peking Union Medical College 01.08.2023
• Subjects: bilateral extremities tonic seizures(bets)|electrical-clinical semiology|positioning|lateralization
• ISSN: 1001-6325
• DOI: 10.16352/j.issn.1001-6325.2023.08.1289

Objective To evaluate the lateralizing value of electrical and clinical semiology in patients with bilateral extremities tonic seizure (BETS). Methods Ninety-two times of BETS were retrospectively observed from 26 patients with focal epilepsy, based on the surgery and follow-up results. The ictal electroencephalography(EEG),synchronous surface electromyography(EMG) and clinical symptoms were collected. Results The EEGs were correctly lateralizing in 59.8%(55/92)seizures.The accompanying lateral signs were correctly lateralized in 64.1%(59/92)seizures. The tonic joint movement lateralization was correct in 81.5%(75/92)seizures. The surface EMGs were 85.9%(79/92)correctly lateralized. The positivity rate of the latter two was higher than that of the first two, which was statistically significant. Conclusions Both the tonic joint movement and surface EMG have better lateralization value and guiding significance for preoperative evaluation of patients with epilepsy.