I want to welcome you to Neuro Talk. This site is a good place for information. I do not know of your particular problem with this up coming proceedure, but someone will in time be able to address your concerns. I am sorry you are going through so much with your health. I came here almost two years ago in a high state of fear and anxiety and I just never left! I found a good group of people who have helped me all along deal with my health conditions. I am here to say hello and weclome you warmly to NT. Sometimes it is possible to google the particular proceedure and get information that way too. Someone will be here to help. I wish you all the best. ginnie