Jun 28, 2013 - 12:36 am
Would really appreciate your opinions or personal experiences on this topic.
1. I had 2 months of IMRT for pca in May-June, 2011. (gleason 7 (4+3), multiple cores)
2. I had a colonoscopy before IMRT began, back in 11/2010, soon after the pca was diagnosed.
3. I had IBS for many years before the imrt, but since early 2012, its gotten a lot
4. My gastroenterologist recently suggested he perform a sigmoidoscopy on me soon
a. there might be other problems than the IBS, like IBD.
b. to see if perhaps there might be some irritation or other effects
c. to make sure there are no colon cancer signs.
5. Due to the colonoscopy 2 1/2 years ago before the prostate IMRT of 2 years ago,
6. I've not any other such invasive testing nor even a DRE since the IMRT was completed.
7. While doing the sigmoidoscopy, he wants to take some samples/biopsies to see if IBD is involved
8. He is aware in general that samples should not be taken near where the IMRT
9. Some articles and medical journals reports have spoken of harmful effects when
10. I'm aware that delayed problems from imrt, like proctitis, can happen even if
---> a. is it ok for the sigmoidoscopy to happen without any risk for having something done
(or that the sigmoidoscopy could irritate any scarred or sensitive rectal areas that were affected by the IMRT, which might now or later cause proctitis or other problems even if not related to raising psa or making the pca return) ?
---> b. is there a chance that the prostate or rectal areas affected
---> c. how far up and in the rectum should the Dr. not probe or take any samples/biopsies
---> d. or to phrase question c. a different way, since obvious or visual signs of proctitis or other rectal irritation as a result of imrt might not be present at this time, since have read that these problems can come years after imrt --
then it seems like Dr. might not necessarily be able to depend on visual evidence to know where not to take samples
(that is, are there some standard number of centimeters or inches up the rectum
PS - If there is any possible risk from the sigmoidoscopy or Fleet enemas that the prostate cancer