Rectal bleeding-proton therapy

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New Member

Date Joined Jul 2010
Total Posts : 2
   Posted 7/30/2010 5:09 AM (GMT -6)   
I completed Proton Therapy at Shands, Jacksonville about Oct 15, 2006. In late May, I experienced signs of blood when I passed stool. I contacted Shands and used a suppository fot 2 weeks. The bleeding increased and I was put on canasa suppositories for 6 weeks. The bleeding became greater and up to 12 occurences a day. I am in my 6th week of canasa now and down to 5-6 occurences a day with lighter bleeding.
I have not seen any reports of this severity of effect. Are others experiencing a similar effect?

Regular Member

Date Joined Nov 2008
Total Posts : 299
   Posted 7/30/2010 10:42 AM (GMT -6)   
My dad had Proton Therapy many years ago and his large intestine was damaged. So, he has daily episodes of issues. He doesn't use the internet so would never post his story.

He is also 88 so doesn't see a point of having corrective surgery or anything else.

You haven't posted your history so I'm not sure if something else isn't causing this.
Age 60, PSA 2007 4.1, PSA 2008 10.0
Diagnosed April 2008, Biopsy: 6 of 12 cores positive, Gleason 4 + 5 = 9
CT and Bone Scan negative, Open surgery at Shawnee Mission Medical Center May 21, 2008
Right side nerves spared, Radical prostatectomy and lymph node dissection
Cather removed on June 3rd, totally dry on July 9th, pT2c, lymph nodes negative
PSA Sept 28, 2008 0.00, PSA Jan 22, 2009 0.00, PSA June 29, 2009 0.00
PSA Sept 2009 0.00, PSA Dec 21, 2009 0.02, PSA March 29, 2010 0.03
ED Status- Currently using Trimix, Levitra daily for increased blood flow.
Noctural Erections have completely returned on a nightly basis, same hardness as before.
Stopped the injections except for "Fun" weekends. Really don't need them anymore.

Regular Member

Date Joined May 2010
Total Posts : 36
   Posted 7/30/2010 11:12 AM (GMT -6)   
Blue Moon:
I didn't use proton considered it seriously.  During my consult with Loma Linda here in Southern California the doctor indicated that there are a small percentage of patients that do experience some rectal bleeding after the treatment.  If the colon gets too close to the prostate during the procedure, the radiation evidently causes some of the blood vessels in the colon to bleed.  The fix is that they go in and cauterize the errant blood vessels.  Supposed to be a quick fix and rather painless, sort of like a colonoscopy where they burn off a polyp if they find one.
I'd suggest you ask the proton facility about this and not your usual urologist.
Best of luck.
Age:  59
Dx:  March 2010
PSA @ Dx:  4.3 (Latest PSA = 2.8 after elimination of dairy)
Gleason:  3+3=6 (confirmed by second pathologist)
Biopsy:  1 of 12 cores contained adenocarcinoma at 15% involvement and no evidence of perineural invasion
DRE: Normal
Stage:  T1c
Bone scan and chest x-rays:  Negative
Prostate Volume: 47 cc
PSA Velocity:  0.19 ng/ml/yr
PSA Density:  0.092 ng/ml/ccm
PSA Doubling Time:  > 10 Years
Treatment Decision:  CyberKnife radiation treatment in June 2010.  Side effects:  None

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