植入前患者低密度脑电图得出的脑功能连通性指标作为VNS预后预测指标。

IF 3.7 3区 医学 Q2 ENGINEERING, BIOMEDICAL
Enrique Germany, Igor Teixeira, Venethia Danthine, Roberto Santalucia, Inci Cakiroglu, Andres Torres, Michele Verleysen, Jean Delbeke, Antoine Nonclercq, Riëm El Tahry
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引用次数: 0

摘要

目标。在1/3的患者中,抗癫痫药物可能不足,当癫痫发作局限于非雄辩脑区时,可能会进行切除手术。当手术不可行或失败时,迷走神经刺激(VNS)治疗可以作为一种附加治疗,以减少癫痫发作的频率和/或严重程度。然而,预测患者对VNS反应和避免不必要植入的筛选工具或方法尚不存在,而且临床疗效的可靠生物标志物尚不清楚。为了预测患者对VNS的反应,功能性脑连通性测量与图测量相结合已主要用于功能磁共振成像等成像技术,但基于电生理信号(如脑电图)的基于连接图的分析却很少被探索。虽然VNS对功能连通性影响的研究并不新鲜,但这项工作的特点是使用植入前低密度脑电图数据,利用功能连通性和图论指标分析应答者和无应答者之间的判别措施。主要的结果。通过对37例难治性癫痫患者的部分定向相干性和直接转换功能连通性矩阵计算每个频带的5个脑功能连通性指数,我们发现使用benjamin - hochberg校正程序的Mann-Whitney U检验和使用5%的错误发现率,应答者和无应答者的整体效率、平均聚类系数和模块化之间存在显著差异(p< 0.05)。我们的研究结果表明,这些指标可能被用作预测VNS治疗反应性的生物标志物。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Functional brain connectivity indexes derived from low-density EEG of pre-implanted patients as VNS outcome predictors.

Objective. In 1/3 of patients, anti-seizure medications may be insufficient, and resective surgery may be offered whenever the seizure onset is localized and situated in a non-eloquent brain region. When surgery is not feasible or fails, vagus nerve stimulation (VNS) therapy can be used as an add-on treatment to reduce seizure frequency and/or severity. However, screening tools or methods for predicting patient response to VNS and avoiding unnecessary implantation are unavailable, and confident biomarkers of clinical efficacy are unclear.Approach. To predict the response of patients to VNS, functional brain connectivity measures in combination with graph measures have been primarily used with respect to imaging techniques such as functional magnetic resonance imaging, but connectivity graph-based analysis based on electrophysiological signals such as electroencephalogram, have been barely explored. Although the study of the influence of VNS on functional connectivity is not new, this work is distinguished by using preimplantation low-density EEG data to analyze discriminative measures between responders and non-responder patients using functional connectivity and graph theory metrics.Main results. By calculating five functional brain connectivity indexes per frequency band upon partial directed coherence and direct transform function connectivity matrices in a population of 37 refractory epilepsy patients, we found significant differences (p< 0.05) between the global efficiency, average clustering coefficient, and modularity of responders and non-responders using the Mann-Whitney U test with Benjamini-Hochberg correction procedure and use of a false discovery rate of 5%.Significance. Our results indicate that these measures may potentially be used as biomarkers to predict responsiveness to VNS therapy.

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来源期刊
Journal of neural engineering
Journal of neural engineering 工程技术-工程:生物医学
CiteScore
7.80
自引率
12.50%
发文量
319
审稿时长
4.2 months
期刊介绍: The goal of Journal of Neural Engineering (JNE) is to act as a forum for the interdisciplinary field of neural engineering where neuroscientists, neurobiologists and engineers can publish their work in one periodical that bridges the gap between neuroscience and engineering. The journal publishes articles in the field of neural engineering at the molecular, cellular and systems levels. The scope of the journal encompasses experimental, computational, theoretical, clinical and applied aspects of: Innovative neurotechnology; Brain-machine (computer) interface; Neural interfacing; Bioelectronic medicines; Neuromodulation; Neural prostheses; Neural control; Neuro-rehabilitation; Neurorobotics; Optical neural engineering; Neural circuits: artificial & biological; Neuromorphic engineering; Neural tissue regeneration; Neural signal processing; Theoretical and computational neuroscience; Systems neuroscience; Translational neuroscience; Neuroimaging.
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