How do you approach small bowel constraints in the setting of reirradiation?

This is a very tough question to answer. I agree with Dr. @Dr. First Last's answer.

The maximum dose for the small bowel during reirradiation can vary depending on various factors such as the previous dose received, the interval between radiation treatments, the purpose of reirradiation (palliative o...

The re-irradiation I have done in gynecological cancers, I have tried to limit the cumulative dose to the rectum to D2cc to 75 Gy or less (occasionally have gone beyond that) taking into account doses from past and current treatment. There may be a 10% recovery of dose with a time interval of more t...