Deep Brain Stimulation Surgery (DBS) Does Not Help With ...
With tremors that do not belong to the Essential Tremor diagnosis, DBS Surgery does not always help these other types of tremor, such as after a stroke. (However, Parkinson's Disease tremor is usually helped with DBS.)
DBS Surgery for Parkinson's Disease does not help if the diagnosis is atypical (non-idiopathic) Parkinson' Disease, if the patient had a lack of sustained response to levodopa, or if the disease has progressed to moderate or severe dementia.
Both Parkinson's Disease and Essential Tremor can progress over time. DBS does not stop the progression of the disease. It is another modality of treatment to work with Medications, Physical Therapy, Speech Therapy, and Environmental Changes.