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does radiation cause another cancer? What is this ?

 
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notme
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PostPosted: Wed Sep 02, 2009 8:47 am    Post subject: does radiation cause another cancer? Reply with quote
From the Nov. 2008 Urology Times:

Univ. Calif. Davis researchers report patients treated with radiation for initial therapy for prostate cancer, and men treated with radiation for positive margins at radical prostatectomy have a 2-fold risk for developing subsequent bladder or colorectal cancers due to the radiation exposure.

Caution was urged as there are trends towards treating the positive margins before any rise in PSA confirms residual cancer.

Additionally, at the 2009 American Urology Assn meeting, stats were quoted describing a risk of 1% per year of developing a secondary cancer in the bladder or rectum due to radiation exposure.
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johnT
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Joined: 27 Apr 2009
Posts: 176
PostPosted: Wed Sep 02, 2009 10:43 am    Post subject: Re: does radiation cause another cancer? Reply with quote
Note that this study was done by a Urological Group with a vested interest in it's outcome. Secondary cancers were common in the early days of ERBT; but are now extremely rare with the new technologies like IMRT and Proton that target only the prostate and not surrounding tissues.
JohnT
_________________
psa at diagnosis 40 in nov-08
gleason 6 and 7
Treatment choice seeds and IMRT
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Hawk
Senior User


Joined: 22 Nov 2006
Posts: 406
PostPosted: Wed Sep 02, 2009 2:18 pm    Post subject: Re: does radiation cause another cancer? Reply with quote
I am glad notme posted this because it totally refutes the earlier statements he posted by his urologist that "radiation WILL cause future cancers". Doubling ones risk is VERY FAR from "it WILL cause cancer".

Further, the results from current day radiation will no doubt show a significantly reduced risk.

I see this as positive news. There is also the point that I have no expectation of eternal mortal life. If I am in minority that get cancer from radiation in 15 years I will deal with it with the tools available to fight cancer 15 years down the road. if I don't get it then clearly something else will kill me. Thats just life Smile
_________________
History: PSA's 6.7 neg. biopsy - PSA 16.6 neg. biopsy - PSA's 8.2, 8.1, 8.7 - Biopsy. 4+4 Gleason 8. Lap RP Apr 2004, age 52 All neg margins, nodes, and structures. (T2a). Post RP PSA: every 6 mo. <.1 until Feb, 08 (46 mos) PSA .1 - I then got sensitive tests (all in 2008) showing:
Feb .06, May .09, Jun .10, Aug .10, Nov .15 -SRT
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