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Updated: Feb 11, 2026

Network Analysis of Foramen Ovale Electrode Recordings in Drug-resistant Temporal Lobe Epilepsy Patients
Published on: December 18, 2016
[The application of stereo-electroencephalography guided radiofrequency thermocoagulation in refractory temporal
1School of Clinical Medicine, Tsinghua University, Beijing 100084, China; Epileptic Center of Neurosurgery Department, Tsinghua University Yuquan Hospital, Beijing 100040, China.
Abstract:
Objective: To investigate the clinical value of stereo-electroencephalography guided radiofrequency thermos-coagulation (RFTC) in drug resistant temporal epilepsy. Methods: The clinical data of 12 patients with refractory temporal epilepsy who underwent implantation of SEEG electrodes and radiofrequency thermos-coagulation from July 2016 to November 2017 were analysed retrospectively. Results: The mean follow-up time was 6.4±4.6 months after thermos-coagulation, and 10.2±3.5 months after resection. Engel Ⅰa was observed in 9 cases, with Ⅱa, Ⅲa and Ⅳa 1 cases respectively. Nine patients experienced a ≥50% decrease of seizure frequency after RFTC (R+ , 75%), of whom one had got a sustained seizure free for 15 months and the other with decrease of seizure frequency by over 90% for 14 months. There was a statistical significance in seizure frequency between pre- and post-thermo-coagulation (P=0.008). Ten cases underwent open surgery following SEEG-guided RFTC, of them 8 cases got seizure free. RFTC was effective in 6 of 8 cases. In our group, all patients have not suffered from any neurologic and cognitive deficiency, and even several patients have some improvements on memory quotient. Conclusions: Although it is less effective than resective surgery, SEEG-guided RFTC can be a relatively safe, effective treatment because of its precision and minimal invasion for patients with complex drug resistant temporal epilepsy, especially for impossible any cortical resection. In addition, its effect may be a predictor of outcome after conventional cortectomy.
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