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术中皮层电极监测下显微外科手术治疗难治性癫痫
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摘要
目的:探讨难治性癫痫中运用皮质脑电图监测切除癫痫病灶的疗效。方法:对28例患者术前经多次常规脑电图、24h动态脑电图检查定位并联合CT、MR I或者fMRI、MRS及PET检查结果,确定癫痫病灶的准确位置。在皮质脑电图精确定位监测下手术切除致痫病灶。结果:28例难治性癫痫患者均通过皮质脑电图监测准确定位,切除致痫病灶后的棘波、尖波,棘、尖慢复合波减少或完全消失。按Engel术后效果分级:手术效果满意(癫痫发作消失)21例(75%),显著改善3例(10.8%),良好4例(14.3%),无效0例。结论:在癫痫手术中运用脑电皮层监测,可以进-步精确定位致痫灶,指导手术中正确切除癫痫灶及预示手术效果,有助于提高手术治疗的有效性,在癫痫外科治疗中具有一定应用价值。
Objective:To investigate the therapeutic effect on focal excision of epilepsy in intraoperative intractable epilepsy by electrocography (ECoG) monitoring Methods: 8patients with intractable epilepsy were examined by many times of routine EEG before operation,24h dynamic EEG, combined with examinations of CT and MRI, fMRI, MRS or PET, to confirm the accurate positions of epilepsy foci. The focal epilepsy were resected by electrocortography (ECoG) monitoring. Results:The focal excision of epilepsy of 28 patients was all successful, Spike waves, sharp waves complex were reduced or completely disappeared after focal excision of epilepsy. The clinical outcome showed that patients were seizure free in 21 cases (75%);improved significantly in 4 cases (10.8%);improved in 3 cases (14.3%);unimproved in 0 case according to Engel"s criteria after surgery. Conclusion:ECoG monoring during operation of EP can be effective in precise localization of epileptogenic zone, direction of the treatmet of EP by microsurgical and forecasting the curative effect.
引文
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