The 40% figure was in the general range of sucess discussed with all 3 radiation oncologists that I had spoken to in advance. There are risk factors that can vastly change one's odds, and they include PSA at time of surgery, PSA doubling time after surgery, and of course, what I talk about often, is general PSA velocity. Your final gleason number certainly play a role in this calculation, and then the staging.
Some sources say that out of all the "risk" factors, PSA velocity is the most darning of all of them. I will re-find the source and post it some time.
My rad. oncol. said it is wrong to assume that PC tumors are so slow moving. Many, if not most are, but she said if you have one with the agressive strands, things can happen and change to the worse quickly, even within months sometimes. She strongly believes that any version of a Gleason 7 is potentially dangerous because of the "4" cells incorporated in the mix. Some dr. feel a 3+4 is much safer combination than a 4+3, my dr. doesn't. Once again, another source of confusion.
In your favor, John and I have two different bodies, two differnt medical histories, and two different PC cases, as well as different family genetics, etc. etc. What is happening with me doesn't have any real bearing on how he will react to SRT and how effective it will be.
Even in my case, despite what my dr. has warned me, we won't know till about a year after SRT to begin to know whether this worked or not. I am still hoping for my 40% this time. Just don't want to be on the negative side of another set of odds.
David in SC
Age: 57, 56 dx, PSA: 7/07 5.8, 7/08 12.3, 9/08 14.5, 10/08 16.3
3rd Biopsy: 9/08 - 7/7 Positive, 40-90% Cancer, Gleason 4+3
Open RP: 11/08, Rht nerves saved, 4 days in hospt, on catheters for 63 days, 5th one out 1/09
Path Rpt: Gleason 3+4, pT2c, 42g, 20% cancer, 1 pos margin
Post Surgery PSA: 2/09 .05,5/09 .1, 6/09 .11. 8/09 .16
Latest: 7/09 met 2 rad. oncl, 7/09 cath #6 - blockage, 8/9 2nd corr surgery, 8/9 cath #7 - out 38 days, 9/14/9 - met 3rd rad. oncl.agree to start radiation, mapping on 9/21/9, 9/24 - mtg with uro/surg, 9/29- pre-op, 10/1 - 3rd corr. surgery - suprapubic cath/hard dialation, 10/5 - began IMRT SRT - 39 sessions/72 gys.