Advanced Parkinson's disease
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Idiopathic Parkinson's disease and—despite optimal pharmacological treatment—at least one of the following symptoms: severe response fluctuations, dyskinesias, painful dystonias, or bradykinesia.
Exclusion criteria
Exclusion criteria: 1. Age below 18 years; 2. Previous functional stereotactic neurosurgery; 3. Hoehn and Yahr stage 5 at the best moment during the day; 4. A Mattis dementia rating scale score of less than 120; 5. Psychosis, and contraindications for stereotactic neurosurgery such as a physical disorder making surgery hazardous (severe hypertension, blood coagulation disorder, severe dysphagia, or dysphasia).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The primary outcome measures are the number of patients with significant cognitive, mood, and behavioral adverse effects and the off-on phase weighted AMC Linear Disability Scale (functional improvement). Significant cognitive, mood, and behavioral adverse effects are defined as worsening on three or more cognitive tests (based on the reliable change index), or the loss of professional activity/work/job, or the loss of an important relationship (e.g. marriage), or psychosis/depression/anxiety for a period of 3 months or longer. Outcome measurements will be performed at baseline and 12 months after surgery. | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary outcome consists of symptom scales (UPDRS motor, CDRS), activities of daily living scales (ALDS and UPDRS ADL), a quality of life questionnaire (PDQL), adverse effects, and medication use. Additionally, patients will undergo extensive neuropsychological and standardized psychiatric assessment. | — |
Contacts
Academic Medical Center (AMC), Department of Neurology, H2-236, P.O. Box 22660