Epidural Electrical Stimulation to Support Hemodynamic Management in Individuals With Parkinson's Disease

This study is testing whether spinal cord electrical stimulation (a small device placed near the spine) can help manage dangerously low blood pressure when standing up — a condition called orthostatic hypotension — in people with Parkinson's disease and related conditions. **You may be eligible if...** - You are over 18 years old - You have been diagnosed with Parkinson's disease or a related condition (like Multiple System Atrophy or Progressive Supranuclear Palsy) - You have confirmed orthostatic hypotension (blood pressure drops when you stand up) - This low blood pressure significantly disrupts your daily life - You can communicate in French or English **You may NOT be eligible if...** - You have a disease that makes spinal implant surgery unsafe - You have a serious infection or active cancer - You are pregnant - Your condition is unstable in ways that would make participation unsafe Talk to your doctor to see if this trial is right for you.