NCT02304848已完成不适用
Effects of Deep Brain Stimulation (DBS) Frequency on Neural Synchrony
适应症
干预措施
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 9
- 试验地点
- 2
- 主要终点
- Low frequency stimulation versus no stimulation
研究概览
简要总结
The purpose of this study is to evaluate the effects of low frequency deep brain stimulation on subthalamic nucleus neural synchrony. Low frequency stimulation does not improve the cardinal motor signs of Parkinson's disease, and may be beneficial only for gait and speech. This study will provide insight into what the effects of low frequency stimulation are on neural synchrony.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 80 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •A diagnosis of idiopathic Parkinson's disease, with bilateral symptoms at Hoehn and Yahr Stage greater than or equal to II.
- •Documented improvement in motor signs on versus off dopaminergic medication, with a change in the Unified Parkinson's Disease Rating Scale motor (UPDRS III) score of >= 30% off to on medication.
- •The presence of complications of medication such as wearing off signs, fluctuating responses and/or dyskinesias, and/or medication refractory tremor, and/or impairment in the quality of life on or off medication due to these factors.
- •Subjects should be on stable doses of medications, which should remain unchanged until the DBS system is activated. After the DBS system is optimized (during which time the overall medication dose may be reduced to avoid discomfort and complications such as dyskinesias) the medication dose should remain unchanged, if possible, for the duration of the study.
- •Treatment with carbidopa/levodopa, and with a dopamine agonist at the maximal tolerated doses as determined by a movement disorders neurologist.
- •Age > 18
排除标准
- •Subjects with significant cognitive impairment and/or dementia as determined by a standardized neuropsychological battery.
- •Subjects with clinically active depression, defined according to the Diagnostic and Statistical manual of Mental Disorders, Fourth Edition (DSM-IV) criteria and as scored on a validated depression assessment scale.
- •Subjects with very advanced Parkinson's disease, Hoehn and Yahr stage 5 on medication (non-ambulatory).
- •Subjects with an implanted electronic device such as a neurostimulator, cardiac pacemaker/defibrillator or medication pump.
- •Subjects, who are pregnant, are capable of becoming pregnant, or who are breast feeding.
- •Patients with cortical atrophy out of proportion to age or focal brain lesions that could indicate a non-idiopathic movement disorder as determined by MRI
- •Subjects having a major comorbidity increasing the risk of surgery (prior stroke, severe hypertension, severe diabetes, or need for chronic anticoagulation other than aspirin).
- •Subjects having any prior intracranial surgery.
- •Subjects with a history of seizures.
- •Subjects, who are immunocompromised.
- •Subjects with an active infection.
- •Subjects, who require diathermy, electroconvulsive therapy (ECT), or transcranial magnetic stimulation (TMS) to treat a chronic condition.
- •Subjects, who have an inability to comply with study follow-up visits.
- •Subjects, who are unable to understand or sign the informed consent
研究组 & 干预措施
DBS (Deep Brain Stimulation)
Experimental
DBS ( Deep Brain Stimulation) ( both high and low frequency deep brain stimulation will be applied to the subthalamic nucleus)
干预措施: DBS (Deep Brain Stimulation) (Other)
结局指标
主要结局
Low frequency stimulation versus no stimulation
时间窗: 3 years
The changes in neuronal oscillations, measured in power (dB/Hz) and frequency (Hz), that are significantly different between periods of low frequency stimulation and periods of no stimulation - during rest - in people with Parkinson's disease off medications.
次要结局
- Low frequency stimulation versus high frequency stimulation(3 years)
研究者
Helen M. Bronte-Stewart
Dr
Stanford University
研究点 (2)
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