my husband had a PSA done and it raised from 0,5 to 0,7. He finished proton radiation las year January, the PSA went down to 0,5. is this normal, or should he take any action? He will be 81 years old this coming September, would it be okay to let it go. Has anybody have this experience?
Thank you for advise
The 'norm" is that 35-65% of salvage RTs will recur (a softer term for fail) within 5 years, finally leaving the patient with only the for life toxicity of irradiation. This is the exact reason for which I try to defer sRT for as long as possible. Have a look at this, it may serve your husband for a couple of years before they brink in the "heavy artillery" i.e. ADT, 2nd gen ARSI, chemo, Lu-177 etc.
Biochemical recurrence is nadir+ 2.0, which would be 2.5 for your husband. That is the level at which clinical recurrence might be suspected.
Bounces are common:
Tall Allen THINK as the IBM plaque read 50 years ago.
Seven months ago the OP wrote:
"There is not much of a bio, he was operated by DaVincy to remove the prostate, the PSA was 9, the Gleason was 4 and 5. PSA went down to 0,1. Five years later, the PSA increased to 0,8, a pet scan indicated a rezidiv. The Urologist ordered radiation, which was done in Heidelberg, under a Program called HIT. He still is on checkup every 3 months and has to fill out paper work for evaluation. His PSA, went down to 0,2, after radiation, and now, after 3 more months to 0,05. Appearently it is good, he has no other treatments"
healthunlocked.com/advanced...
What you posted only applies to those that still have a prostate following primary RT.
Psa
PSA and PSMA
Rising PSA 
PSA Test less than four weeks post surgery 
