Mark,
Thanks for taking time to give me your input and the link to
http://www.cyberknifesupport.org/forum/default.aspx?f=1&m=6126I read the thread and have some doubts as to the conclusion and meaning of the Doctors final thoughts. It sounded to me like they believe it could be done and re-do the CK again later down the road but not well known as you said Mark.
"Radiation dose is limited by how much was received by that and neighboring structures, and there is no restriction on treatment to any other part of the body, or even to other parts of the brain away from the area treated". Jerome J. Spunberg, M.D., FACR, FACRO
The other doctor went on to say:ÂÂ
"San Diego has apparently re-treated AN, but I don't know how many and the results. Things can always be re-treated. It is just a matter of balancing the risks and benefits, and those will be different in every case.[/u]ÂÂ
I would expect it to be pretty safe. The doses used are low enough that even with two courses of treatment the total dose is not much beyond what we sometimes use in a single course of treatment, and there is some healing of normal tissues in between". Clinton A. Medbery, III, M.D.
My concern based on what was told to me by several physicians and I'm sorry, I don't have it in print and nor can I quote them exactly. From what Dr Medbery said:
"and there is some healing of normal tissues in between", he is referring to scar tissue. The Neurosurgeon who would assist in doing my CK using Novalis system, says he can and would remove the tumor by surgery if I wanted to, but recommended the CK procedure since I had a previous surgery from before and due to scar tissue would be the
least risky for hearing, facial nerve preservation. This recommendation was due to the scar tissue build up and trying to remove the tumor is more tedious, almost blindfolded because it covers over areas that would have to be cut thru/removed without touching the nerves. Saving the hearing, balance, and facial nerves is possible but risky with a 2nd micro-surgery.ÂÂ
The Radiological Surgeon who he would be working with I met also and discussed my questions. He told me he thought I was a good canidate for Novalis CK but there are no guarantees and I already new that. When I asked him if for some reason the tumor continued to grow, could I have the treatment again. Basically, He agreed with the two doctors from your thread. When I asked him if radiation creates scar tissue, he replied yes, it does.  In my opinion then, I would be creating more scar tissue doing CK procedure, making a later surgery very difficult if needed. I asked if he agreed/He nodded his head, yes. When I asked if I had to have surgery later anyway for whatever the reason or case would it be feasible. He told me that scar tissue is what makes the surgery procedure difficult in any type of surgery, but for brain surgery, it is extremely risky when especially trying to avoid brain tissue damage, and nerve loss.ÂÂ
So,...now the dilema I face is do I risk CK Novalis and hope that it kills the tumor this time and not be sorry later? OR Risk surgery for the 2nd time around and find a good doctor who can navigate thru the scar tissue built up around the tumor already?  I never thought I would have to face this choice and I hope none of you ever have to. Gambling your life on "maybe", "perhaps", "almost", "apparently", or a "would expect", makes your choice very difficult. Some of you have had surgery twice and with success. How many have not? I don't know of anyone who has had CK GK FSR after having surgery but I'm sure there are some in the world who have. I would value your input, experiences, and opinions.
Ultimately,...it is going to be a gamble and I know it is my decision to make, but this time around, I have to make the best informed decision I can. Everything said on this forum and others will help me with that choice. I appreciate the input thus far and thankful that we have this forum to help others as well as myself.