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Hi David, >> has anyone on this list had a STN DBS after having a bilateral Pallidotomy Or does someone know of a person who has? If So, What were the rersults? Were they positive? << First a note: I have NOT had this procedure myself. There have been studies of DBS of the STN, and there is about 5 years (in Europe) of experience with larger groups of patients with DBS of the STN. There have been NO studies with patients having a DBS of the STN after a (bilateral) pallidotomy, but there have been a few individual cases in which DBS of the STN was performed after a pallidotomy some years before. The results IN THESE FEW EXPERIMENTAL INDIVIDUAL CASES seem to indicate that a DBS of the STN, after a previous pallidotomy, has in general the same benifits, BUT NOT QUITE AS EFFECTIVE as a DBS of the STN would have been without a previous pallidotomy. The outcome of DBS of the STN after a pallidotomy is still highly impredictable, and should IMO for the moment only be considered after a VERY CAREFUL evaluation of the patient by a VERY EXPERIENCED (in DBS of the STN) neurologist and neurosurgeon. Hans. ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn