Evaluation of Quantitative Measurement Techniques for Head Tremor With Thalamic Deep Brain Stimulation

被引:6
作者
Chockalingam, Arun [1 ]
Boggs, Hans [1 ]
Prusik, Julia [1 ,2 ]
Ramirez-Zamora, Adolfo [3 ]
Feustel, Paul [2 ]
Belasen, Abigail [1 ]
Youn, Youngwon [1 ]
Fama, Chris [1 ]
Haller, Jessica [1 ]
Pilitsis, Julie [1 ,2 ]
机构
[1] Albany Med Ctr, Dept Neurosurg, Albany, NY USA
[2] Albany Med Coll, Dept Neurosci & Expt Therapeut, Albany, NY 12208 USA
[3] Albany Med Ctr, Dept Neurol, Albany, NY USA
来源
NEUROMODULATION | 2017年 / 20卷 / 05期
关键词
Deep brain stimulation; essential tremor; head tremor; quantitative measurement; ventralis intermedius thalamus; FEEDBACK;
D O I
10.1111/ner.12566
中图分类号
R-3 [医学研究方法]; R3 [基础医学];
学科分类号
1001 ;
摘要
BackgroundVentralis intermedius thalamic deep brain stimulation (VIM DBS) has shown to be safe and effective for medically refractory essential tremor (ET). We evaluate the use of quantitative tremor measurement methods for head tremor in ET using a smart hat and a smartphone application. MethodsWe enrolled 13 ET patients who previously underwent VIM DBS. Head and arm tremor was measured ON and OFF stimulation using the clinical gold standard Fahn-Tolosa-Marin Tremor Rating Scale (TRS). Results were then compared to two quantitative measurement techniques: Lift Pulse (smartphone application) and modified Nizet (adapted laser point measurement from Nizet et al.). Spearman's rank correlation was used to compare tremor severity and improvement on stimulation using TRS and quantitative methods to measure tremor. ResultsLift Pulse tremor severity measurement significantly correlated with TRS for head (=0.53, p<0.01) and arm tremor (=0.49, p<0.01). Modified Nizet tremor severity measurement significantly correlated with TRS for head (=0.83, p<0.001) and arm tremor (=0.50, p<0.01). Inter-method correlation for head tremor severity was significant (=0.45, p<0.05). Lift Pulse tremor improvement measurement significantly correlated with TRS for arm tremor (=0.56, p<0.05). Modified Nizet tremor improvement measurement significantly correlated with TRS for head tremor (=0.53, p<0.01). DiscussionOur results show that Lift Pulse and modified Nizet are both effective techniques to quantitatively measure head and arm tremor severity. We also show the utility of a smart hat to measure head tremor. Modified Nizet technique is more effective for measuring head tremor, while Lift Pulse is an effective measure of tremor severity, especially arm tremor improvement.
引用
收藏
页码:464 / 470
页数:7
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