Centromedian thalamic deep brain stimulation for idiopathic generalized epilepsy: Connectivity and target optimization

脑深部刺激 癫痫 神经科学 丘脑 背景(考古学) 刺激 医学 心理学 麻醉 内科学 生物 帕金森病 疾病 古生物学
作者
Sihyeong Park,Fiona Permezel,Shruti Agashe,Gamaleldin Osman,Hugh D. Simpson,Kai J. Miller,Jamie J. Van Gompel,Keith Starnes,Brian N. Lundstrom,Gregory A. Worrell,Nicholas M. Gregg
出处
期刊:Epilepsia [Wiley]
卷期号:65 (11) 被引量:5
标识
DOI:10.1111/epi.18122
摘要

Abstract There are limited treatment options for individuals with drug‐resistant idiopathic generalized epilepsy (IGE). Small, limited case series suggest that centromedian thalamus deep brain stimulation (CM‐DBS) may be an effective treatment option. The optimal CM‐DBS target for IGE is underexamined. Here, we present a retrospective analysis of CM‐DBS targeting and efficacy for five patients with drug‐resistant IGE. Volume of tissue activated (VTA) overlap with CM nucleus was performed using an open‐source toolbox. Median follow‐up time was 13 months. Median convulsive seizure frequency reduction was 66%. One patient had only absence seizures, with >99% reduction in absence seizure frequency. Four patients had electrode contacts positioned within the CM nucleus target, all of whom had >50% reduction in primary semiology seizure, with 85% median seizure reduction ( p = .004, paired‐sample t test). Volumetric “sweet‐spot” mapping revealed that best outcomes were correlated with stimulation of the middle ventral CM nucleus. Connectivity strength between the sweet‐spot region and central peri‐Rolandic cortex was increased significantly relative to other cortical regions ( p = 8.6 × 10 −4 , Mann–Whitney U test). Our findings indicate that CM‐DBS can be an effective treatment for patients with IGE, highlight the importance of accurate targeting and targeting analysis, and within the context of prior work, suggest that ideal CM‐DBS targets may be syndrome specific.
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