Margaret has been to see a neurosurgeon. He has recommended a bi-lateral pallidotomy . Those on this list that I know of who have had both hemispheres of the brain treated, have had them done in separate operations, often separated by a considerable interval. This particular surgeon who says he has done over 60 pallidotomies, apparently operates on both sides in the same 'sitting'. We asked about the risks involved in this double procedure, and were informed that there is no additional cause for concern and that the current stereotactic MRI techniques which enabled precisely placed=20 1mm - 2mm lesions, meant that there was little or no chance that Margaret's speech would be impaired by the operation. =20 We would be interested to hear from any list-members who have experience or knowledge of this particular procedure.=20 Mark. (CG for Margaret, 65/27yrs) ----------- Mark Atyeo 5/51 Alexander Mackie Circuit Isaacs A.C.T. 2607 <[log in to unmask]> Telephone: 61 6 286 2606