• Matthew F Sacino, Sean S Huang, John Schreiber, William D Gaillard, and Chima O Oluigbo.
• Department of Neurosurgery, Children's National Medical Center, George Washington University, Washington, District of Columbia.
• Neurosurgery. 2019 Jun 1; 84 (6): 1190-1200.

BackgroundStereoelectroencephalography (SEEG) is an alternative addition to subdural grids (SDG) in invasive extra-operative monitoring for medically refractory epilepsy. Few studies exist on the clinical efficacy and safety of these techniques in pediatric populations.ObjectiveTo provide a comparative quantitative summary of surgical complications and postoperative seizure freedom associated with invasive extra-operative presurgical techniques in pediatric patients.MethodsThe systematic review was conducted following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). A literature search was conducted utilizing Ovid Medline, Embase, Pubmed, and the Cochrane database.ResultsFourteen papers with a total of 697 pediatric patients undergoing invasive SDG monitoring and 9 papers with a total of 277 pediatric patients undergoing SEEG monitoring were utilized in the systemic review. Cerebral spinal fluid (CSF) leaks were the most common adverse event in the SDG studies (pooled prevalence 11.9% 95% confidence interval [CI] 5.7-23.3). There was one case of CSF leak in the SEEG studies. Intracranial hemorrhages (SDG: 10.7%, 95% CI 5.3-20.3; SEEG: 2.9%, 95% CI -0.7 to 10.8) and infection (SDG: 10.8%, 95% CI 6.7-17) were more common in the SDG studies reviewed. At the time of the last postoperative visit, a greater percentage of pediatric patients achieved seizure freedom in the SEEG studies (SEEG: 66.5%, 95% CI 58.8-73.4; SDG: 52.1%, 95% CI 43.0-61.1).ConclusionSEEG is a safe alternative to SDG and should be considered on an individual basis for selected pediatric patients.Published by Oxford University Press on behalf of Congress of Neurological Surgeons 2018.

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