Intracranial electroencephalography with subdural and/or depth electrodes in children with epilepsy: Techniques, complications, and outcomes

Yang, Peng-Fan; Zhang, Huijian; Pei, Jia-Sheng; Tian, Jun; Qiao, Lin; Mei, Zhanlong; Zhong, Zhong-Hui; Jia, Yueping; Chen, Ziqian; Zeng, Zheng

doi:10.1016/j.eplepsyres.2014.08.011

Cited by 28 publications

(25 citation statements)

References 42 publications

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“…The certain proportion of TLE patients appears to be resistant to antiepileptic drugs and is referred to the several surgical treatments of brain regions [6,7]. The invasive intracranial EEG is supposed to be useful for the surgical localization of epileptic foci in patients with intractable epilepsy; the data on safety and surgical outcome with this technique are still inadequate [8][9][10][11]. The ample evidences of advanced research using multimodal combinational non-invasive neuroimaging techniques like MRI, MRS, f-MRI, FDG-PET, SPECT, and MEG have revealed that most of the cases of TLE patients are accompanied by pathological changes in brain structure and function network, including cortical and subcortical (hippocampus and parahippocampus) structures [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

MRI characterization of temporal lobe epilepsy using rapidly measurable spatial indices with hemisphere asymmetries and gender features

et al. 2015

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Section: Introductionmentioning

confidence: 99%

MRI characterization of temporal lobe epilepsy using rapidly measurable spatial indices with hemisphere asymmetries and gender features

et al. 2015

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“…There were 12 studies that reported on epilepsy duration, with no significant difference between SEEG patients (mean = 126.8 months ± 65.0, median = 121.8) and SDE patients (mean = 62.4 months ± 51.1, median = 51.4; Table ). Among the SEEG patients, the etiology was identified as a temporal epileptogenic focus in 42.2% of patients, tumor in 6.7% of patients, FCD1 in 39.2% of patients, FCD2 in 10.7% of patients, and lesional in 41.5% of patients .…”

Section: Resultsmentioning

confidence: 99%

“…Among the SEEG patients, the etiology was identified as a temporal epileptogenic focus in 42.2% of patients, 15,22,23,[26][27][28][29] tumor in 6.7% of patients, 22,23,27,28,30 FCD1 in 39.2% of patients, 16,23,27,28,[31][32][33] FCD2 in 10.7% of patients, 23,28,31 and lesional in 41.5% of patients. [15][16][17]22,23,[28][29][30][31]34 Among the SDE patients, the etiology was identified as a temporal epileptogenic focus in 40.9% of patients, 18,21,25,[35][36][37][38][39][40][41][42][43][44][45] tumor in 16.0% of patients, 18,20,21,…”

Section: Cohort Descriptionmentioning

confidence: 99%

Method of invasive monitoring in epilepsy surgery and seizure freedom and morbidity: A systematic review

et al. 2019

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Objective Invasive monitoring is sometimes necessary to guide resective surgery in epilepsy patients, but the ideal method is unknown. In this systematic review, we assess the association of postresection seizure freedom and adverse events in stereoelectroencephalography (SEEG) and subdural electrodes (SDE). Methods We searched three electronic databases (MEDLINE, Embase, and CENTRAL [Cochrane Central Register of Controlled Trials]) from their inception to January 2018 with the keywords “electroencephalography,” “intracranial grid,” and “epilepsy.” Studies that presented primary quantitative patient data for postresection seizure freedom with at least 1 year of follow‐up or complication rates of SEEG‐ or SDE‐monitored patients were included. Two trained investigators independently collected data from eligible studies. Weighted mean differences (WMDs) with 95% confidence interval (CIs) were used as a measure of the association of SEEG or SDE with seizure freedom and with adverse event outcomes. Results Of 11 462 screened records, 48 studies met inclusion criteria. These studies reported on 1973 SEEG patients and 2036 SDE patients. Our systematic review revealed SEEG was associated with 61.0% and SDE was associated with 56.4% seizure freedom after resection (WMD = +5.8%, 95% CI = 4.7‐6.9%, P = .001). Furthermore, SEEG was associated with 4.8% and SDE was associated with 15.5% morbidity (WMD = −10.6%, 95% CI = −11.6 to −9.6%, P = .001). SEEG was associated with 0.2% mortality and SDE was associated with 0.4% mortality (WMD = −0.2%, 95% CI = −0.3 to −0.1%, P = .001). Significance In this systematic review of SEEG and SDE invasive monitoring techniques, SEEG was associated with fewer surgical resections yet better seizure freedom outcomes in those undergoing resections. SEEG was also associated with lower mortality and morbidity than SDE. Clinical studies directly comparing these modalities are necessary to understand the relative rates of seizure freedom, morbidity, and mortality associated with these techniques.

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“…Furthermore, pediatric populations exhibit a different variety of seizure syndromes and disease presentations, such as higher rates of extratemporal epilepsy, which may alter postoperative outcomes due to the anatomic placement of electrodes. Invasive epilepsy monitoring has been shown to be a safe procedure in children, with generally favorable outcomes, but how their side effect profile compares to that of older populations is poorly understood, and ultimately requires further elucidation. Although age did not directly present itself as a risk factor in this study, we did find a nonsignificant trend toward decreased rates of clinically significant extraaxial collections with increased length of epilepsy.…”

Section: Discussionmentioning

confidence: 99%

Complications of subdural and depth electrodes in 269 patients undergoing 317 procedures for invasive monitoring in epilepsy

Schmidt

Lang

et al. 2016

Epilepsia

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Subdural electrodes appear to have an increased rate of abnormal postoperative findings, including hemorrhage and extraaxial collections; however, there was no difference in clinically significant findings. Subdural grids also appear to be associated with symptomatic extraaxial collections, and previous craniotomy increases the risk of hemorrhage. Overall, intracranial monitoring remains a safe and effective procedure for localization of operative seizure foci. Patient selection and risk education for various modalities is an essential aspect of preoperative evaluation.

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Intracranial electroencephalography with subdural and/or depth electrodes in children with epilepsy: Techniques, complications, and outcomes

Cited by 28 publications

References 42 publications

MRI characterization of temporal lobe epilepsy using rapidly measurable spatial indices with hemisphere asymmetries and gender features

MRI characterization of temporal lobe epilepsy using rapidly measurable spatial indices with hemisphere asymmetries and gender features

Method of invasive monitoring in epilepsy surgery and seizure freedom and morbidity: A systematic review

Complications of subdural and depth electrodes in 269 patients undergoing 317 procedures for invasive monitoring in epilepsy

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