Have had a rectal spacer, and ceased my Warfarin prior!. All good and very happy I did this. Just note this was done in Australia under a private hospital, not sure what the NHS situation is these days ?. The spacer is often used in Australia for private treatment, but also done in some Public Hospitals increasingly now.
So far after my radiation 20/ 64 Gy, all is mostly going well, rectal damage needs to be avoided, please consider!.