Here are my answers, which are necessarily colored by my SRT experience. Yours probably won't match up exactly, should you undergo SRT.
1.) Probably around 38 treatments, 1 per day, Monday through Friday. Mine took about
15 minutes from checking in at the desk to walking out the door. The actual time when the machine was on was just under 10 minutes in my case, as I recall.
2.) You should be able to work the treatments into your schedule depending on your individual commuting circumstances. I live and work about
5 minutes from the hospital, so I basically used a coffee break each day for treatment.
I know some people report fatigue, but I didn't really notice any. My problem was that my bowels got tickled by the radiation, and towards the end of the 38 treatments I started having loose bowels, painful bowel movements, etc (all of which were treatable and temporary and did not interfere much with life in general.)
3.)You might have bowel irritation, bladder irritation, and fatigue. Usually these are not as bad as patients expect. Usually. Sometimes patients get away with zero side effects. A small percentage of patients have serious complications.
As to chances of a cure, things look favorable in your situation (I sound like a Magic 8 Ball, right?) You can run your numbers through the MSK calculator at nomograms.org for a clearer idea. There are no guarantees, but starting with a low PSA like yours is right now would really increase the odds of success, as does your positive surgical margin (provides a local explanation for the PSA increase, and local means potentially curable by SRT).
I blogged about
my experience and did not spare my readers any detail about
problems. See my sig file for that blog.
I also encapsulated everything I learned about
SRT (side effects, chances of success, etc) over the past 3 years in a Google "knol" (guide) at: knol.google.com/k/salvage-radiation-for-prostate-cancer
and on that knol I have linked to some recent very useful articles, like the one for us lay people in the PCRI Insights newsletter ("Nine Decisions") and the more academic review of the state of SRT by Choo.
Hope this is of some help!
Dx Feb 2006, PSA 9 @age 43
RRP Apr 2006 - Gleason 3+4, T2c, NX MX, pos margins
PSA 5/06 <0.1, 8/06 0.2, 12/06 0.6, 1/07 0.7.
Salvage radiation (IMRT) Jan-Mar 2007
PSA 9/2007 and thereafter <0.1pcabefore50.blogspot.com