Erratum: A Retrospective Analysis of Stereoelectroencephalography and Subdural Electroencephalography for Preoperative Evaluation of Intractable Epilepsy

<b><i>Background:</i></b> Different methods for intracranial electrode recording have various advantages and disadvantages, and controversy exists regarding the complications of stereoelectroencephalography (SEEG) and subdural EEG. <b><i>Objective:</i></b> The purpose of this study was to determine the efficacy and safety of SEEG by comparing it with subdural EEG. <b><i>Methods:</i></b> Data from 100 patients who underwent SEEG (<i>n</i> = 48) and subdural EEG (<i>n</i> = 52) to evaluate the epileptogenic zone were collected from June 2011 to June 2015. The evaluation results, surgical outcomes, and complications were compared. <b><i>Results:</i></b> No significant differences were noted between the SEEG and subdural EEG groups in identifying the epileptogenic zone or undergoing epileptic surgery. Of the 88 patients who underwent epilepsy surgery after assessment, 59.5% in the SEEG group and 52.2% in the subdural EEG group became seizure free. No significant differences in postoperative seizure control or intelligence improvement were noted. The overall complication rate in SEEG patients (8/48; 16.7%) was lower than that in subdural EEG patients (13/52; 25%), particularly for hemorrhage and infection (4.2 vs. 17.3%, <i>p</i> &lt; 0.05). <b><i>Conclusions:</i></b> This retrospective review indicates that SEEG has low associated complications, particularly regarding hemorrhage and infection. SEEG is a safe and effective method for intracranial monitoring.

<b><i>背景：</i></b> 不同颅内电极记录技术各有优劣，且立体脑电图（stereoelectroencephalography, SEEG）与硬膜下脑电图（subdural EEG）的并发症问题尚存争议。<b><i>目的：</i></b> 本研究旨在通过对比立体脑电图与硬膜下脑电图，明确其有效性与安全性。<b><i>方法：</i></b> 收集2011年6月至2015年6月期间，100例分别接受立体脑电图（n=48）与硬膜下脑电图（n=52）评估致痫灶的患者数据，对比两组的评估结果、手术结局及并发症发生情况。<b><i>结果：</i></b> 两组在致痫灶定位及癫痫手术实施率方面无显著差异。在评估后接受癫痫手术的88例患者中，立体脑电图组59.5%的患者术后无癫痫发作，硬膜下脑电图组为52.2%；两组在术后癫痫控制效果及智力改善方面均无显著差异。立体脑电图组患者的总体并发症发生率（8/48；16.7%）低于硬膜下脑电图组（13/52；25%），其中出血与感染并发症的差异尤为显著（4.2% vs. 17.3%，p<0.05）。<b><i>结论：</i></b> 本回顾性研究表明，立体脑电图相关并发症发生率较低，尤其在出血与感染方面；立体脑电图是一种安全且有效的颅内监测手段。