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Old 04-22-2008, 10:18 PM   #6
gpgscott
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Re: Pre-op testing before radical prostatectomy

I'm not Daff, but I can tell you that Proton beam radiation is not bracy, it is a form of external beam radiation that resolves at a specific distance from the transducer so there is no exit dose. In conventional IMRT the radaiation passes completely through the body irradiating tissue in a straight line from entry to exit, with Proton beam the radiant energy can be stopped so that only the tissue on the entry side is exposed.

Scott
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Old 04-23-2008, 07:48 AM   #7
daff
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Re: Pre-op testing before radical prostatectomy

Quote:
Originally Posted by tumbleweed View Post
Daff - is Proton beam therapy a form of Brachytherapy? Can you offer any insight into why you went for Proton beam therapy instead of seeds?

Thanks,

T.
The basic choices presented by my urologist were surgery or seeds.
If I had not looked at other alternatives on my own, I suppose I could have
done either of those. Proton beams are a form of radiation and not a form of Brachytherapy. It's a very targeted form of radiation doing minimal damage to surrounding tissue, thus the reduced liklihood of serious side effects. As you've learned from the previous post, there is no exit dose of radiation as with many other forms. Proton beams are used in treating other serious cancers as well as prostate cancer.

Each patient is different, and the margin treated around the prostate will be slightly different. So it can treat areas that surgery may miss.

I ruled out seeds because of my perception that side effects were greater.
For a while, I was on the fence and thought I'd have to toss a coin to choose between surgery and protons. But after my research and especially after my consultation at University of Florida Proton Therapy Institute, I was 100% sure this is what I wanted. As part of the consultation, they review one's biopsy slides and ultimately perform other pre-treatment tests (none of which were suggested prior to my planned surgery).

Proton beam therapy has been around for more than 20 years and is not experimental. It does require more time, about two months of daily (5 days a week) short treatments. The pioneer location is Loma Linda University in California where over 7,000 prostate patients have been treated since 1990. There are several new centers proposed or under construction-- not inexpensive as each center costs over $100 million. The largest to date will open at Univ of Pennsylvania next year. Most patients' insurance does cover this treatment.

Most patients are self-referred. What I tell people is not what alternative treatment they SHOULD do, as that's a decision each has to make. What I do strongly suggest is that for a matter so important, one should at least learn about the alternatives, and then be in a position to make an informed decision. While doctors can help, they generally don't present the array of choices.

I belong to a group of 3,000 members who've had this treatment and you'd find out about this by getting Marckini's book.

If you do a search on this board, you'll find my previous posts on proton- and I encourage you to read those as well. I can answer more specific questions after you've done some more reading. Surgery is certainly a good choice for many, but there are other good choices too.
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Old 04-23-2008, 09:26 AM   #8
daff
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Re: Pre-op testing before radical prostatectomy

Quote:
Originally Posted by tumbleweed View Post
Daff - is Proton beam therapy a form of Brachytherapy? Can you offer any insight into why you went for Proton beam therapy instead of seeds?

Thanks,

T.
Quick followup to my previous response. I just noticed that you are in Europe-
and there are proton centers there too-- I think a couple in Germany. Not knowing where you or others that may be interested in this are, I'd suggest an internet search to learn locations and capabilities worldwide..
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Old 04-23-2008, 02:01 PM   #9
tumbleweed
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Re: Pre-op testing before radical prostatectomy

Thanks daff.

I chose brachytherapy over other non-surgical (I was not acceptable for surgery, having had previous pelvic radiotherapy) because (1) I believed the side effects were minimal and (2) the convenience of having it all done in one go instead of a series of sessions, so I am curious to know what side effects you turned up against seeds, which I seem to have missed. It is too late now for me to do anything about it - the seeds are there, but it would be useful for my future progress if I had foreknowledge of anything to expect.

Thanks,

T.
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Brachytherapy in UK 7th February 2008
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Old 04-23-2008, 03:35 PM   #10
daff
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Re: Pre-op testing before radical prostatectomy

Quote:
Originally Posted by tumbleweed View Post
Thanks daff.

I chose brachytherapy over other non-surgical (I was not acceptable for surgery, having had previous pelvic radiotherapy) because (1) I believed the side effects were minimal and (2) the convenience of having it all done in one go instead of a series of sessions, so I am curious to know what side effects you turned up against seeds, which I seem to have missed. It is too late now for me to do anything about it - the seeds are there, but it would be useful for my future progress if I had foreknowledge of anything to expect.

Thanks,

T.
I'm not sure I turned up a lot of possible side effects that you may have missed-- the literature is somewhat conflicting. Some of it says that the urinary, sexual, and bowel problems would be similar to those after external beam radiation. Other reports are that there can be a greater problem with incontinence in some of those that receive brachytherapy. It seems that the skill of the doctor plays an important role. Benefits of course are that it's relatively quick and easy to get this done. I had concluded that proton therapy was more likely to lead to fewer side effects than external beam radiation, so if brachy was to lead to side effects similar to external beam, that was a reason for me not to explore it (or external beam radiation) more. Also, my prostate was a little large for the standard brachy, so I would have needed to do brachy in conjunction with radiation or try to shrink the prostate via medications. I completed my proton treatments last November- the basic side effects I experienced were a couple weeks of urinary-related issues (about three weeks into my treatments--weak stream, some burning, urgency) but these were relieved with Flomax. About three weeks post-treatment I was able to discontinue that medication for good. Hopefully any side effects you're still experiencing
will not last too much longer.
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