Dr. Iacono's website provides a great explanation for pallidotomy vs. stimulation and when each is appropriate. You can find the discussion at: www.pallidotomy.com under the "notes on current technologies" section. I would, however, like to caution you that Dr. Iacono's pallidotomy success rates are typically much higher, causing him to choose pallidotomy over stimulation more often. There is no doubt that a well-placed pallidotomy lesion provides a much better level of success than a stimulator. The stimulator operation does, however, require less of a learning curve and tends to be less risky in the wrong hands, causing most surgeons to opt for the stimulator. Fatta