What are the advantages of deep brain stimulation?
Deep brain stimulation offers many advantages. Doctors can adjust the level of electrical stimulation; this isn't possible with surgical destruction. The electrode has four metal contacts that can be used in many different combinations. Even if one electrode contact is not in the exact location, it is likely that one of the others or some combination of the electrical contacts will be closer to the proper target. As your response to surgery changes over time, doctors can adjust stimulation levels without requiring a repeat operation.
Another significant advantage of deep brain stimulation relates to future treatments. Destructive surgery, such as thalamotomy or pallidotomy, may reduce your potential to benefit from future therapies. With deep brain stimulation, the stimulator could be turned off if you decide to try other therapies.
From: Multiple Sclerosis and Deep Brain Stimulation WebMD Medical Reference
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