Hello everyone, I would like to introduce myself and join others of you in expressing what a great resource this information exchange is! My 69 year old father was diagnosised with PD 12 years ago. He has reached a point with his PD where his medication seems to be less effective. His neurologist has suggested that he is a "prime" candidate for a pallidotomy, and he has been seriously considering it for a couple of months now. In reference to earlier comments about what constitutes a prime candidate for a pallidotomy, I can only guess that he fits that description because the medication seems to be less effective, he is very healthly otherwise, and is now 69 years old. He has spoken to two individuals who have had the surgery about one year ago, and both expressed the fact that they felt their surgeries were a success. It is my understanding that both are in the process of scheduling a second pallidotomy on the other side. I was wondering if anyone had any literature references of scientific journals or peer reviewed information on pallidotomies which were completed over several years ago. There was a comment made in the WSJ article to the effect that some followup studies had been made on individuals who had undergone the surgery in 1985 and 1986. Does anyone have anymore information in this area? Thanks to Barbara and all of you who provide such helpful information!