Differences in Brain Network Mechanisms Between STN and GPi Deep Brain Stimulation in the Treatment of Craniocervical Dystonia
Trial Parameters
Brief Summary
Craniocervical dystonia, characterized by symptoms distributed in the craniofacial and/or cervical regions, is a type of focal or segmental dystonia and is the most common form of dystonia in adults. Deep brain stimulation (DBS) is a significant therapeutic approach for medically refractory craniocervical dystonia. The commonly utilized DBS targets are the Globus Pallidus internus (GPi) and the Subthalamic Nucleus (STN). Current research indicates no significant difference in efficacy between these two targets, although there are some differences in the onset time, stimulation voltage, and complications. Studies utilizing magnetic resonance imaging (MRI) to assess brain activity differences in patients with dystonia have found that patients exhibit increased activity and enhanced plasticity across a broad range of brain regions, including the brainstem, cortex, subcortical structures, and the basal ganglia, among others. Consequently, an increasing number of studies are classifying dystonia within the spectrum of brain network disorders. This study aims to recruit patients with craniocervical dystonia who meet the inclusion criteria, randomly assigning them into two groups of 30 patients each. One group will receive stimulation targeting the STN, and the other will target the GPi. Using functional MRI, researcher will conduct a dynamic brain network analysis to explore the differences in the brain network mechanisms underlying the treatment of craniocervical dystonia patients between the STN and GPi targets.
Eligibility Criteria
Inclusion Criteria: 1. Age 18-75 years 2. Meeting the diagnostic criteria for primary craniocervical dystonia (including patients with cranial, cervical, or unilateral extremity dystonia) 3. Disease duration ≥1 year 4. Normal cognitive function 5. The subject himself or his legal representative can sign the informed consent form Exclusion Criteria: 1. Patients with other dystonia who did not meet the inclusion criteria 2. Diagnosed with other neuropsychiatric diseases (Alzheimer's disease, amyotrophic lateral sclerosis, Parkinson's disease, etc.) 3. Previous history of craniocerebral surgery 4. Major depression or anxiety 5. The presence of neurosurgical contraindications such as cerebral infarction, hydrocephalus, cerebral atrophy, and sequelae of cerebrovascular disease 6. Contraindications to CT/MRI scanning (e.g. Claustrophobia) 7. women known to be pregnant or lactating, or who had a positive pregnancy test before randomization 8. Presence of contraindications to general anesthesi