ObjectivesTo explore the preoperative assessment method, operative approach and post-operative effect of intractable epilepsy.MethodsOne hundred and twenty five intractable epilepsy patients (85 males and 40 females) from Wuhan Brain Hospital during June 2009 to June 2017 were collected in this study. Their age ranged from 1 to 70 years old, with disease course of 1 ~ 32 years. All the patients underwent VEEG monitoring and MRI examination before operation, and MRS was performed when necessary. Some patients also received psychological assessment. According to the result of VEEG and MRI results, all the patients underwent operations under ECoG monitoring . The surgery effect was followed-up for more than 1 year.ResultsThe post-operative follow-up showed that satisfactory result was achieved in 50 cases, remarkable improvement in 29 cases, good effect in 23 cases, bad effect in 19 cases, and no improvement in 4 cases. The total effective rate of epilepsy surgery was 81.6%, and excellent rate was 41.6%. The effective rate was 81.3% in 80 cases of epileptogenic focus epileptic lesion resection, 87.5% in 40 cases of anterior temporal lobectomy (ATL), and 100% in 3 cases of functional hemispherectomy was, and good effect in the cases of pure cortical coagulation and VNS.ConclusionsThe surgical effects of ATL, epileptogenic focus resection and functional hemispherectomy are better than that of pure corpus callosotomy, multiple subpial transaction (MST), multiple subdural transversely fibrinectomy, VNS or cortical coagulation. So epileptogenic focus should be accurately located preoperatively, and it is better to choose resection operation in order to increase the surgical effect of intractable epilepsy.
ObjectiveTo explore the clinical features and surgical treatment effects of cavernous angioma in the temporal lobe secondary to epilepsy.Method38 cases of patients with cavernous angioma in the temporal lobe secondary to epilepsy were collected in Department of Neurosurgery of Wuhan Brain Hospital from Jan. 2010 to Jan. 2019. There were 17 males and 21 females, their age range from 8 to 57 years, average (40.05±14.64) years. Their illness duration ranged from 1 to 10 years, average (1.25±2.19) years. The clinical manifestations showed complex partial seizure in 7 cases, partial-secondary-generalized seizure in 8 cases, and generalized tonic-clonic seizure in 23 cases. All the patients underwent CT/MRI and long-term VEEG monitoring examination. Based on their results of clinical manifestations, combined with CT/MRI and VEEG results, all the patients underwent microsurgical cavernous angioma resection under the guidance of ECoG. If necessary, anterior temporal lobectomy or coortical coagulation should be added. The surgical effect were evaluated by Engel levels by followed up.ResultsThe postoperative pathology confirmed the diagnosis of cavernous angioma. The follow-up of 1 ~ 9 years showed the seizure disappeared in 36 cases, and bad effect in 2 cases. The total surgical effect rate was 94.74% (36/38).ConclusionsTo the patients of cavernous angioma in the temporal lobe secondary to epilepsy, the glial scar and hemosiderin sedimentary zone should be resected after resecting the lesion, and if necessary, anterior temporal lobectomy or cortical coagulation could be added. If it is difficult to locate the lesion, neuronavigation and ultrasound can be used, and the postoperative curative result is satisfactory.
ObjectiveTo explore the pathogenic mechanism of human herpesvirus 6B (HHV-6B) in the intractable mesial temporal lobe epilepsy (MTLE).Methods42 cases of intractable MTLE and 17 cases of non-MTLE patients who treated in Wuhan Brain Hospital from Jan. 2012 to Dec. 2018 were enrolled in this study. Resected hippocampus, amygdala and mixed uncus samples were examined by real-time polymerase chain reaction (PCR) and reverse-transcriptase PCR to detect viral DNA and message RNA. Comparative analysis was used between the clinical characteristics and the HHV-6 detection.ResultsDetection of HHV-6 DNA was higher in MTLE patients (40.48%) than non-MTLE patients (11.7%). HHV-6B viral DNA was determined in 15/30 HHV-6 DNA-positive samples, and no HHV-6B mRNA were detected in all HHV-6 DNA negative samples. The patient’s age was the only influencing factor of HHV-6 expressing in MTLE. While the patient’s gender, onset age and possible disease cause had no effect on the HHV-6 content.ConclusionsThis study suggests that HHV-6B may play an important role in the pathogenesis of MTLE, but the mechanism needs further study.
ObjectiveTo explore the clinical characteristics and surgical effect of low-grade glioma (LGG) secondary epilepsy.Methods45 cases of low-grade glioma secondary epilepsy were retrospectively studied during December 2010 and December 2020.There were 27 males and 18 females in this group. Their ages ranged from 10 to 69 years [mean (42.8±15.61) years]. And the illness duration ranged from 3 months to 5 years [mean (12.5±4.12) months]. The initial manifestation of all LGG was seizure attack.All the patients underwent CT and MRI examination before the operation. The LGG was located in the frontal lobe in 17 cases, temporal lobe in 8 cases, parietal lobe in 4 cases, frontal-temporal lobe in 7 cases, frontal-parietal lobe in 5 cases. Meanwhile the LGG was located in the left side in 31 cases, right side in 14 cases. The long-term video-EEG monitoring showed the epileptogenic lesion was located in the ispilateral frontal lobe in 20 cases, temporal lobe in 8 cases, frontal-temporal lobe in 12 cases, frontal-parietal lobe in 5 cases.All the patients were performed operation under the intra-operative electrocorticography (ECoG) monitoring.If necessary, enlarged epileptogenic cortical resection, cortical coagulation or MST was added.After the operation, all the patients were followed-up for half a year to 10 years [mean (4.7±1.83) years] to observe the surgical effect.Results42 cases of LGG underwent gross total resection and 3 subtotal resection intra-operatively. Anterial temporal lobectomy (ALT) was added in 19 cases whose LGG were invovled with temporal lobe.13 cases were added cortical cogulation and 5 cases MST.The post-operative pathology showed astrocytoma grade Ⅰin 20 cases, astrocytoma grade Ⅱ in 12 cases, oligodendroglioma in 11 cases and dysembryoplastic neuroepithelial tumor (DNET) in 2 cases. The post-operative follow-up showed that 30 cases lived well, 12 cases recurred and received re-operation, 3 cases died. Meanwhile, 42 cases were seizure free and 3 cases had occasional seizure attack during the follow-up.ConclusionsTo the patients with LGG secondary epilepsy, if pre-operative long-term EEG monitoring is in accordance with imaging examination, early LGG resection combined with epileptogenic lesion resection should be performed under the guidance of ECoG monitoring.And the post-operative effect is satisfactory.