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Forecasting Seizure Freedom After Epilepsy Surgery Assessing Concordance Between Noninvasive and StereoEEG Findings
Neurosurgery ( IF 3.9 ) Pub Date : 2020-07-31 , DOI: 10.1093/neuros/nyaa322
Reinaldo Uribe San Martin 1 , Roberta Di Giacomo 2 , Roberto Mai 3 , Francesca Gozzo 3 , Veronica Pelliccia 3 , Valeria Mariani 3 , Francesco Cardinale 3 , Ethel Ciampi 1 , Marco Onofrj 4 , Laura Tassi 3
Affiliation  

BACKGROUND Accurate localization of the probable Epileptogenic Zone (EZ) from presurgical studies is crucial for achieving good prognosis in epilepsy surgery. OBJECTIVE To evaluate the degree of concordance at a sublobar localization derived from noninvasive studies (video electroencephalography, EEG; magnetic resonance imaging, MRI; 18-fluorodeoxyglucose positron emission tomography FDG-PET, FDG-PET) and EZ estimated by stereoEEG, in forecasting seizure recurrence in a long-term cohort of patients with focal drug-resistant epilepsy. METHODS We selected patients with a full presurgical evaluation and with postsurgical outcome at least 1 yr after surgery. Multivariate Cox regression analysis for seizure freedom (Engel Ia) was performed. RESULTS A total of 74 patients were included, 62.2% were in Engel class Ia with a mean follow-up of 2.8 + 2.4 yr after surgery. In the multivariate analysis for Engel Ia vs >Ib, complete resection of the EZ found in stereoEEG (hazard ratio, HR: 0.24, 95%CI: 0.09-0.63, P = .004) and full concordance between FDG-PET and stereoEEG (HR: 0.11, 95%CI: 0.02-0.65, P = .015) portended a more favorable outcome. Most of our results were maintained when analyzing subgroups of patients. CONCLUSION The degree of concordance between noninvasive studies and stereoEEG may help to forecast the likelihood of cure before performing resective surgery, particularly using a sublobar classification and comparing the affected areas in the FDG-PET with EZ identified with stereoEEG.

中文翻译:

预测癫痫手术后癫痫发作的自由度 评估无创和立体脑电图结果之间的一致性

背景 从术前研究中准确定位可能的致癫痫区 (EZ) 对于在癫痫手术中实现良好的预后至关重要。目的 评估非侵入性研究(视频脑电图,EEG;磁共振成像,MRI;18-氟脱氧葡萄糖正电子发射断层扫描 FDG-PET,FDG-PET)和立体脑电图估计的 EZ 在预测癫痫发作中的一致性程度局灶性耐药性癫痫患者的长期队列复发。方法 我们选择了具有完整的术前评估和术后至少 1 年的术后结果的患者。进行无癫痫发作的多变量 Cox 回归分析 (Engel Ia)。结果 共纳入 74 名患者,62.2% 为 Engel Ia 级,平均随访时间为 2.8 + 2。术后4年。在 Engel Ia 与 >Ib 的多变量分析中,完全切除立体脑电图中的 EZ(风险比,HR:0.24,95%CI:0.09-0.63,P = .004),FDG-PET 与立体脑电图完全一致( HR:0.11,95%CI:0.02-0.65,P = .015)预示着更有利的结果。在分析患者亚组时,我们的大部分结果都保持不变。结论 无创研究和立体脑电图的一致性程度可能有助于在进行切除手术之前预测治愈的可能性,特别是使用亚肺叶分类并将 FDG-PET 中的受影响区域与立体脑电图识别的 EZ 进行比较。004)以及 FDG-PET 和立体脑电图之间的完全一致性(HR:0.11,95%CI:0.02-0.65,P = .015)预示着更有利的结果。在分析患者亚组时,我们的大部分结果都保持不变。结论 无创研究和立体脑电图的一致性程度可能有助于在进行切除手术之前预测治愈的可能性,特别是使用亚肺叶分类并将 FDG-PET 中的受影响区域与立体脑电图识别的 EZ 进行比较。004)以及 FDG-PET 和立体脑电图之间的完全一致性(HR:0.11,95%CI:0.02-0.65,P = .015)预示着更有利的结果。在分析患者亚组时,我们的大部分结果都保持不变。结论 无创研究和立体脑电图之间的一致性程度可能有助于在进行切除手术之前预测治愈的可能性,特别是使用亚肺叶分类并将 FDG-PET 中的受影响区域与立体脑电图识别的 EZ 进行比较。
更新日期:2020-07-31
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