Think Neuro Mini: What is Deep Brain Stimulation (DBS)? with Dr. Jean-Philippe Langevin

Think Neuro

In movement disorders such as Parkinson’s disease, essential tremor, and dystonia, normal function can be restored to the circuitry of the brain, resulting in significant improvement in function and quality of life. The goal of deep brain stimulation surgery is to modulate the activity of a specific brain region.

In DBS, thin electrodes are placed in the disruptive areas of the brain and small electrical pulses normalize or eliminate the irregular signals. DBS is the non-permanent suppression of overactivity in the autopilot structure of the brain called the basal ganglia.

Like a pacemaker for the brain, the battery (pulse generator) is implanted under the skin of the chest, and leads (wires) are tunneled under the skin via the deep part of the brain through a quarter-sized opening in the skull. The system is fully implanted under the skin, so there are no external wires or devices. The stimulator is fully programmable and therefore adjustable over time, as the disease changes. Patients can use a simple hand-held device to turn the DBS on or off, and adjust various other parameters if needed.