Hi, I am still researching possible treatments for my 75 year old father with PD(left side only). We were considering thalamotomy but were advised that the risks at his age were unacceptable. We are now reconsidering deep brain stimulation. If you have any experience or advice about age and risks please share them. Thank You! I would also like to talk with anyone who uses the PD Institute in Sunnyvale, Ca for care. Vernice Karbe [log in to unmask]