For the facts: You can go to Don Bern's posting on JUne 30 for good background on Pallidotomy Then find the Bonander postings on Pallidotomy (May & June?) and for a personal account --the B Yacos posting YES Don D an index would be a great help The Pallidotomy series at the Toronto Hospital Toronto Canada involves the recording (mapping?) of the probe's advance through the brain tissue. Thus this operation takes longer than some other Pallidotom(ies). I'm sure similar procedures are going on in other centres Emory could be one of them. Anne Rutherford [log in to unmask]