I haven't asked about reirridation with Proton Therapy. Something I consideted, but I didn't want to ask the doctors right now, and probably difficult to answer without any calculations, and other than that, I would assume yes, if it's not the same area as before. The types of chemo's, trials are limited for me due to my kidney and other issues, so yes, after a harsh treatment like Induction chemo, if it effects the organs, it may effect future chemo treatments. I was denied chemo three times, radiation twice in the past, but things change with change of health, different doctors, hospitals with thier experience, different techniques, and new technology.
One of my RO's said I'm probably one of a handfull of patients in the country that had HD-IORT and Proton Radiation as a course of treatment.