期刊
MOVEMENT DISORDERS
卷 31, 期 10, 页码 1551-1559出版社
WILEY
DOI: 10.1002/mds.26663
关键词
high-frequency oscillations; Parkinson's disease; tremor; deep brain stimulation; subthalamic nucleus
资金
- ERA-NET Neuron/German Federal Ministry of Education and Research (BMBF) [Neuron-48-013]
- Heinrich Heine University Strategic Research Funds
- German Academic Exchange Service (P.R.I.M.E.)
BackgroundHigh frequency oscillations (>200 Hz) have been observed in the basal ganglia of PD patients and were shown to be modulated by the administration of levodopa and voluntary movement. ObjectiveThe objective of this study was to test whether the power of high-frequency oscillations in the STN is associated with spontaneous manifestation of parkinsonian rest tremor. MethodsThe electromyogram of both forearms and local field potentials from the STN were recorded in 11 PD patients (10 men, age 58 [9.4] years, disease duration 9.2 [6.3] years). Patients were recorded at rest and while performing repetitive hand movements before and after levodopa intake. High-frequency oscillation power was compared across epochs containing rest tremor, tremor-free rest, or voluntary movement and related to the tremor cycle. ResultsWe observed prominent slow (200-300 Hz) and fast (300-400 Hz) high-frequency oscillations. The ratio between slow and fast high-frequency oscillation power increased when tremor became manifest. This increase was consistent across nuclei (94%) and occurred in medication ON and OFF. The ratio outperformed other potential markers of tremor, such as power at individual tremor frequency, beta power, or low gamma power. For voluntary movement, we did not observe a significant difference when compared with rest or rest tremor. Finally, rhythmic modulations of high-frequency oscillation power occurred within the tremor cycle. ConclusionsSubthalamic high-frequency oscillation power is closely linked to the occurrence of parkinsonian rest tremor. The balance between slow and fast high-frequency oscillation power combines information on motor and medication state. (c) 2016 International Parkinson and Movement Disorder Society
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据