Use this nomogram to get an idea of your chances of successful salvage radiotherapy:
https://www.mskcc.org/nomograms/prostate/salvage_radiation_therapy
Re dipping in and out of private treatment I am lucky enough to have had choices.
I was diagnosed privately using an MRI that wasn't standard of care at the time (8 years ago).
I had the OP on the NHS as advised by my surgeon - he said the.only difference was the room.
I had follow ups privately because although the NHS paid for my choice of surgeon and hospital they wouldn't pay for long term follow up. But all the urinary issues and ED stuff were dealt with by my NHS GP.
After I started getting a detectable PSA (USPSA 0.05) I was sent to Oncology immediately as the surgeon said he could do no more for me.
I have seen the ONCO and had second options for the last 4 years. Currently at 0.11 PSA. The ONCO has swung between treating early at 0.07 to waiting until 0.2.
Because I am retiring soon I will lose my free private health care, in anticipation of this I spoke to my GP and he had no issues refering me to an NHS ONCO. I am in Mid Wales so I suspect will have the same logistical issues as North Wales.
I have my last private ONCO appointment and PSA in January, I have also booked another 2nd opinion at the Royal Marsden which is happening Friday - happy to ask any relevant questions and report back here!