Clinical and Neurophysiological Study of Subthalamic Brain Stimulation in PD
Overview
- Phase
- N/A
- Intervention
- Not specified
- Conditions
- Parkinson Disease
- Sponsor
- University of Alabama at Birmingham
- Enrollment
- 175
- Locations
- 1
- Primary Endpoint
- This study measures neurophysiological responses to subthalamic deep brain stimulation in the central and peripheral nervous system in patients with Parkinson disease.
- Status
- Completed
- Last Updated
- 7 years ago
Overview
Brief Summary
Deep brain stimulation (DBS) improves debilitating symptoms of movement disorders when conventional medical therapies and novel surgical therapies fail. Despite the remarkable efficacy of DBS, its therapeutic mechanism remains unclear. There is controversy regarding whether the therapeutic effects of DBS are associated with inhibition or excitation of target neurons, the introduction of new activity into the network, or a combination of these mechanisms. Additionally, it is unclear why stimulus frequency plays an important role in the clinical response to therapy. The fundamental hypothesis of this proposal is that unilateral subthalamic nucleus (STN) DBS in PD alters neuronal activity in the bilateral basal ganglia-thalamic-cortical motor system in a manner that is dependent on stimulation frequency.
Investigators
Harrison Walker, MD
Assistant Professor
University of Alabama at Birmingham
Eligibility Criteria
Inclusion Criteria
- •Patients with Parkinson disease who have undergone subthalamic deep brain stimulation
Exclusion Criteria
- •Patients who are unable to follow verbal instructions
- •Patients who are unable to tolerate being off their Parkinson's medications for 12 hours
- •Patients who are medically unstable
Outcomes
Primary Outcomes
This study measures neurophysiological responses to subthalamic deep brain stimulation in the central and peripheral nervous system in patients with Parkinson disease.
Time Frame: Population data will be analyzed for the primary endpoint in 12 months and reported in approximately 18 months.