Epileptogenicidad después de estereoelectroencefalografía y monitorización invasiva de rejillas subdurales: un análisis retrospectivo de pacientes adultos y pediátricos con epilepsia refractaria
{"title":"Epileptogenicidad después de estereoelectroencefalografía y monitorización invasiva de rejillas subdurales: un análisis retrospectivo de pacientes adultos y pediátricos con epilepsia refractaria","authors":"Sonia Pulido , Sven Ivankovic , Nolan Winslow , Andrés Maldonado","doi":"10.1016/j.neucir.2025.500703","DOIUrl":null,"url":null,"abstract":"<div><h3>Objective</h3><div>To assess if removal of stereoelectroencephalography (SEEG) or subdural grids (SDG) is associated with an increased seizure frequency in patients with refractory epilepsy during the immediate postoperative period.</div></div><div><h3>Methods</h3><div>37 patients with refractory epilepsy that underwent monitoring with SEEG or SDG during November 2012-March 2022 were identified using electronic medical records from asingle institution. Seizure history, duration of intracranial monitoring, and monitored brain regions were recorded.</div></div><div><h3>Results</h3><div>5.0% and 5.9% of SEEG and SDG patients had a seizure within 48 h post-termination of monitoring. 25% and 11.8% of SEEG and SDG patients had a seizure between 48 h and 1-week after surgery. Between 1 week and 1 month after SEEG or SDG removal, 35% and 41.2% of patients had a seizure. 30% and 50% SEEG or SDG patients had a seizure between 1- and 2-months following removal. Overall change in postoperative seizure frequency was not significant. Seizure frequency increased for 11.8% of SDG patients while frequency remained unchanged for 5.9% and decreased for 82.4%. No patients post-SEEG removal in our cohort experienced an increased seizure frequency. 95% experienced a decrease in seizure frequency and no change was observed in 5%.</div></div><div><h3>Conclusion</h3><div>SEEG is not associated with increased epileptogenicity after termination of monitoring. Two patients post-SDG removal experienced an increase in seizure frequency. While patients with refractory epilepsy may continue to have seizures during the immediate postoperative period, it is likely that patients will experience a decrease in seizure frequency after removal of SEEG or SDG.</div></div>","PeriodicalId":51145,"journal":{"name":"Neurocirugia","volume":"37 1","pages":"Article 500703"},"PeriodicalIF":0.8000,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Neurocirugia","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1130147325000557","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/9/30 0:00:00","PubModel":"Epub","JCR":"Q4","JCRName":"NEUROSCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Objective
To assess if removal of stereoelectroencephalography (SEEG) or subdural grids (SDG) is associated with an increased seizure frequency in patients with refractory epilepsy during the immediate postoperative period.
Methods
37 patients with refractory epilepsy that underwent monitoring with SEEG or SDG during November 2012-March 2022 were identified using electronic medical records from asingle institution. Seizure history, duration of intracranial monitoring, and monitored brain regions were recorded.
Results
5.0% and 5.9% of SEEG and SDG patients had a seizure within 48 h post-termination of monitoring. 25% and 11.8% of SEEG and SDG patients had a seizure between 48 h and 1-week after surgery. Between 1 week and 1 month after SEEG or SDG removal, 35% and 41.2% of patients had a seizure. 30% and 50% SEEG or SDG patients had a seizure between 1- and 2-months following removal. Overall change in postoperative seizure frequency was not significant. Seizure frequency increased for 11.8% of SDG patients while frequency remained unchanged for 5.9% and decreased for 82.4%. No patients post-SEEG removal in our cohort experienced an increased seizure frequency. 95% experienced a decrease in seizure frequency and no change was observed in 5%.
Conclusion
SEEG is not associated with increased epileptogenicity after termination of monitoring. Two patients post-SDG removal experienced an increase in seizure frequency. While patients with refractory epilepsy may continue to have seizures during the immediate postoperative period, it is likely that patients will experience a decrease in seizure frequency after removal of SEEG or SDG.
期刊介绍:
Neurocirugía is the official Journal of the Spanish Society of Neurosurgery (SENEC). It is published every 2 months (6 issues per year). Neurocirugía will consider for publication, original clinical and experimental scientific works associated with neurosurgery and other related neurological sciences.
All manuscripts are submitted for review by experts in the field (peer review) and are carried out anonymously (double blind). The Journal accepts works written in Spanish or English.