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David, you wrote: >Greetings list, my father is 70 15 years with P.D. We have researched the >pallidotomy and recently heard about adevice which can be implanted into the >brain to reduce/stop tremors. Does anyone have info on this procedure or web >site addresses? Thanks - David The surgery which was recently approved by the FDA uses a stimulator device attached to electrodes implanted in the thalamus (in the brain). It's used primarily in essential tremor, but occasionally for the tremors of PD. Once John Cottingham returns and we can access the archives again, you can look up Thalamic Stimulation in the archives. There's a more recent surgery (still considered experimental) in which the same device is used, but the electrodes are implanted in the globus palladus. This placement of the electrodes helps control tremor but also other symptoms of PD. To read about this, look up pallidal stimulation in the archives. This surgery is being done at the University of Kansas Medical Center and perhaps now a few other places in the US. It's also done in Canada and France. My husband had this surgery on both sides of the brain, one in '95 and one in '96. If you need more information, you can e-mail me directly. Margie Swindler [log in to unmask]