• Epilepsy Center, Children’s Hospital Affiliated to Shandong University (Jinan Children’s Hospital), Jinan 250022, China;
LIU Yong, Email: etyyliuyong@163.com
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Objective To investigate the efficacy and safety of Stereotactic electroencephalogram (SEEG)-guided Radiofrequency-thermocoagulation (RF-TC) in the treatment of refractory insular epilepsy in children.Methods The clinical data of 7 children with SEEG-confirmed insular epilepsy admitted to the Epilepsy Center of the Children’s Hospital Affiliated to Shandong University from January 2021 to May 2022, were retrospectively analyzed (3 males and 4 females; average age, 6.6±3.5 years). All patients underwent stage I pre-operative evaluation, and were implanted with SEEG electrodes for video EEG monitoring. The radiofrequency thermocoagulation contacts were determined according to SEEG and imaging results, and radiofrequency thermocoagulation was performed via electrode contacts. The patients were followed up at 3, 6, 12 and 18 months after operation by outpatient review or via telephone interview. The clinical efficacy was evaluated by Engel classification and complications were recorded. Results Six cases (6/7) were characterized by nocturnal seizures, and four cases (4/7) exhibited hypermotor or complex motor seizures. Three cases (3/7) showed focal ankylosis; only 1 patient had aura. All of the 7 cases showed interictal scalp EEG consistent with the side of surgery: 6 cases showed distribution in the perilateral fissure region, and 1 case showed confinement to the temporal region. In MRI, 4 cases showed negative signal, 2 cases showed unclear gray-white matter boundary, and 1 case showed thickening of the insular cortex. All of the 7 patients received electrode implantation and completed follow-up for over 6 months [6.0~22.0 (12.3±5.3) months]. At the last follow-up, 5 of the 7 children were seizure free (Engel class la), and 2 still had seizures after surgery, with no postoperative long-term complications.Conclusion Children with insular epilepsy rarely show an aura, but have prominent motor symptoms, and the scalp electroencephalogram is mainly distributed in the perilateral fissured area. SEEG-guided RF-TC has good safety and efficacy in the treatment of drug‐resistant insular epilepsy.

Citation: ZHANG Hongwei, GENG Guifu, GAO Zaifen, CHEN Chuanmei, MENG Yao, HU Wandong, ZHANG Huan, SHI Jianguo, LIU Yong. The characteristics of insular epilepsy in children and analysis of the efficacy and safety of radiofrequency thermocoagulation guided by Stereotactic electroencephalogram. Journal of Epilepsy, 2023, 9(2): 91-95. doi: 10.7507/2096-0247.202211009 Copy

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