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Towards Targeted Brain Stimulation in Stroke: Connectivity as a Biomarker of Response:

机译:迈向中风的目标脑刺激:连通性作为反应的生物标记:

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Stroke is a leading cause of adult disability. New treatments capable of assisting recovery hold significant potential to improve quality of life for many stroke survivors. Transcranial direct current stimulation is one technique that has received much attention due to its potential to promote neuroplasticity and enhance recovery. However, current evidence suggests this is not a one-size-fits-all treatment with indication that responses are highly variable. Using electroencephalography, Hordacre et al recently demonstrated that connectivity between the ipsilesional motor cortex, ipsilesional parietal cortex, and contralesional frontotemporal cortex was a strong predictor of the neurophysiological response to anodal transcranial direct current stimulation applied to the ipsilesional motor cortex in people with chronic ischemic stroke. Based on this outcome, we discuss the potential for connectivity to be used as a biomarker to target transcranial direct current stimulation. This includes identification of a connectivity threshold which could be used to select stroke survivors who are likely to respond to this potentially beneficial neuromodulatory treatment. Furthermore, we discuss treatment approaches for those identified as unlikely to benefit from ipsilesional anodal transcranial direct current stimulation based on connectivity profile. This represents an important progression towards targeting transcranial direct current stimulation for best treatment outcome based on individual connectivity characteristics.
机译:中风是成人残疾的主要原因。能够帮助康复的新疗法具有巨大的潜力,可以改善许多中风幸存者的生活质量。经颅直流电刺激由于其具有促进神经可塑性和增强恢复的潜力而受到广泛关注。但是,目前的证据表明,这并不是一种千篇一律的治疗方法,表明反应高度可变。 Hordacre等人最近通过脑电图证明,慢性缺血性卒中患者的经皮运动皮层,经皮顶叶皮层和对侧额颞叶皮层之间的连通性是对经肛门经颅直流电刺激应用于经皮运动皮层的神经生理反应的重要预测指标。基于这一结果,我们讨论了将连接性用作靶向跨颅直流电刺激的生物标记物的潜力。这包括确定连接阈值,该阈值可用于选择可能对这种潜在有益的神经调节治疗有反应的中风幸存者。此外,我们根据连通性资料讨论了那些不太可能从同侧经肛门直流刺激中受益的治疗方法。这代表了基于个体连通性特征,以靶向经颅直流电刺激以获得最佳治疗效果的重要进展。

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