Safety and accuracy of stereoelectroencephalography for pediatric and young adult patients with prior craniotomy

立体脑电图 医学 开颅术 外科 精确检验 癫痫外科 核医学 癫痫 精神科
作者
Peter Yang,Nathan Wulfekammer,Amanda V. Jenson,Elliot Neal,Stuart R. Tomko,John M. Zempel,Peter Brunner,Sean D. McEvoy,Matthew D. Smyth,Jarod L. Roland
出处
期刊:Journal of neurosurgery [Journal of Neurosurgery Publishing Group]
卷期号:: 1-11
标识
DOI:10.3171/2024.6.peds24198
摘要

OBJECTIVE The authors assessed the safety and accuracy of stereoelectroencephalography (SEEG) electrode implantation in pediatric patients who had previously undergone craniotomy compared to those without prior cranial surgery. METHODS The authors performed a retrospective analysis of patients under 25 years of age with medically refractory epilepsy at a single institution who underwent SEEG electrode placement between March 2016 and July 2023. Surgical history and demographic characteristics were collected from the electronic medical records. The coordinates of the anchor bolts and their respective SEEG electrode contacts were manually annotated using postoperative head CT scans. Bolt coordinates were used to calculate the initiated electrode trajectory set by the bolt by using the least-squares method to define a line along the bolt, projected along the length of the electrode. The shortest distance from each electrode contact to this line was calculated to obtain the error measurement. Statistical analysis was conducted using the Kolmogorov-Smirnov test to compare the distribution of errors between groups, the Student t-test was used for continuous variables, and the chi-square/Fisher’s exact test was used for categorical variables. RESULTS Fifty-eight patients underwent a total of 60 SEEG placements and met the inclusion criteria. Eighteen had a history of prior craniotomy and 40 without prior surgery, indicating entirely native cranial bone. Mean age, sex, and mean number of electrodes implanted per surgery were similar between groups. For the electrode contact furthest from the bolt, a mean (IQR) deviation of 1.32 (0.73–2.53) mm was noted for the prior craniotomy group and 1.08 (0.65–1.55) mm for the native bone group (p < 0.0001). A greater number of outliers for the contact furthest from the bolt, defined as > 6 mm from the initiated electrode trajectory, was seen in the prior craniotomy group (p < 0.0001). The complication rate was low and not statistically different between groups. CONCLUSIONS The authors’ analysis draws attention to the effect of the intracranial biomechanical environment along the path of the electrode after traversing past the anchor bolt and found that prior craniotomy was associated with a higher number of contacts with a significant deviation from the initiated trajectory. Despite these deviations, we did not find a difference in the overall low complication rate in both groups. Therefore, the authors conclude that SEEG electrode placement is a safe option in pediatric patients even after prior craniotomy.

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