BB,
First, don't worry about
"losing your cool" now and then. Some places, definitely not all but some, treat you as though you are just another customer in line at WalMart.
Tried to answer some of your questions below:
"If I may ask:
- What technology was used to identify your tumor grade and
location? Tumor Grade was scored (Gleason) by my initial urologist’s lab (G^) and I forwarded the slides to MDA and they had their pathologist re-score them and upgraded some samples to G7. Tumor
location (and/or lack of) was determined through endorectal MRI (NOT fun). (multi-parametric) MRI/CT/PET scanner? Do they typically treat the seminal vesicles as another poster mentioned that his proton treatment also included his seminal vesicles, too?"
I believe that they typically do treat the sem ves.
"- Do you know the margin around the prostate? The NVB? The seminal vesicles?"
I do not know the exact margins for each. They (the RO, the “Dosimetrist” and the physicist) come up with a treatment plan which is determined by the eMRI and they come up with a 3-D treatment image that was shown to me (I could have had them determine the exact margins from that, but at some point I decided to let up a bit and put some faith in them. I kind of over badgered a couple of surgeons on specific surgical techniques that they use and by the time I had gotten to Houston, I had pretty much decided to go that route and let a few details go by.). The team then takes the treatment plan in front of a panel and it must be approved by the panel before you can start. At some point this technology may be extended to focal treatments but even with huge advances in imaging techniques, the only way to know for certain if a particular tissue has microscopic atypical foci, adenocarcinoma or malignant tendencies that might require treatment is to biopsy. Yes larger tumors, denser masses, increased blood flow can be imaged now, but focally treating smaller “tumors” or treating zero margins and not touching the nerve bundles only to have the pre-tumorous cells amass later and need retreatment would lead to the end of this therapy (as well as any that would have a recidivism rate that is anything above surgery) through insurance companies that really only look at overall survival and reoccurrence. Since the nerve bundles extend and wrap around the capsule and do not just pass alongside it like tubes that can be avoided and that post surgery pathology reports show that that is an area of first invasion, I don’t think that the radiation industry will move towards a “zero margin” treatment that I get the feeling you are searching for. I know, I was there looking for the same thing and wanted Dr. Lee to “shrink” the treatment zone to look the same size as my prostate.
"- Did they use the pencil-beam for your treatment? Did they mention if they expected less side effects using it?"
I did have the pencil beam. They don’t tell you that you’ll have less SE from it, you are there with many other patients in the facility and only about
25% of them can have it (there is only one PB gantry and 3 scattered beam gantries) and I don’t think they want the other patients to believe that they are getting a lesser option. I believe that they can plan for slightly smaller margins with the PB as it is like spot painting (VS a stencil like application with the scattered beam). Patients with odd or asymmetrical prostates benefit more from this as they can have the energy released in a non-tunnel like fashion. (ie. If you prostate is curved inward and shaped around your rectum, they do not have to treat as large an area and radiate as much of the rectum.
"- After the treatment, do they plan to do a colonoscopy to see if there is any residual damage to the colon?"
No. And they do not want you having one without notifying them. I had one right before I started to ensure that there were not any areas near the treatment site to be concerned about
. From what I've read, rectal bleeding happens in only a small population and is caused by new vascular growth on the inner lumen of the rectum (right next to the prostate which is forced against it with the balloon during treatment). It usually clears up quickly by itself and is alleviated with stool softeners.
"Thanks for pointing out neoadjuvant HT in your case. Not something I'd want to do just to increase the success odds for the hospital."
One benefit of the HT therapy is that many patients present with very large prostates and the Lupron will reduce the size of the gland significantly (and also the resultant treatment area, I believe). I would have to say that I had to sell the treatment team on me not having it.
"Ideally, we should get just enough radiation to kill the cancer and to minimize the side effects. There was a clinical trial at Loma Linda and they found that 82 Gy is the upper limit of what we men can endure without significantly increasing the side-effects."
It would be important to remember that Loma Linda has the oldest and least precise technology in the field today and trials from one clinic with one delivery form may not be applicable to other clinics.
"Another question if you don't mind and you can answer it rhetorically if you want:
As far as I know, the prostate gland is also a muscle which ejects the sperm in pulses during orgasm. If the prostate is radiated, would that not weaken its ability to pulse or not even be able to pulse? Would that not account for the "dry orgasms"? It is good to know that apparently the body does recuperate a bit as you noticed a return of the ejacs, which must be due to the prostate being able to pulse again. Any thoughts?"
There is/was a definite change in how the gland spasms at orgasm, hard to verbalize but kind of like not quite being able to finish and seems like it lasts longer and maybe more intense. Gotten used to that and seems to have to returned to a more “normal” sensation now but still slightly different.
"According to the comment by the radiation oncologist I consulted, the sperm may also go into the bladder, which had been mentioned in various research reports. (There is also the possibility of fistulas, which I think would gross us all out.) In any case, post-treatment and checking out our plumbing makes a lot of sense."
My doctor there (Dr. Lee) was a very big advocate of continuing to exercise the organ during and after treatment and that daily erections were highly encouraged. I was down there by myself for the duration and told him I didn’t always have any outlet or inspiration and he gave me a bottle of Viagra and had me take it before I went to sleep so “at least I’d wake up having had some exercise”. From reading a few of your posts, you seem a bit like me and really want to dive in and dissect the statistics of the different treatment modalities and I can tell you, you probably won’t find what you want. I met 50+ men while down at MDA and more than 50% of them hadn’t had sex in years prior to their dx and most had suffered from urinary issues as well. Beside most of them being 65-75 and some in not great shape, we were NOT a very good population to sample from for SEs because we were so diverse in our physicality. Clinical trials are not set up to accurately discern (with statistical significance) more than one to 3 varying inputs (usually dose, a competitive treatment or possibly a very distinct disease state of type) and the trials are generally set up to evaluate only a couple of end points (usually OS – overall survival at a time point, and in our case PSA). In the majority of clinical trials, outputs such as SEs are generally only trended.
In the end, I chose PBT because I felt it was the least invasive, had the technology to minimize the effects of excess radiation to surrounding tissues and could find very few patient reports of my two biggest fears: incontinence and ED. That AND it allowed me to spend 3 months in Texas golfing 5 days a week, but I digress…
Good luck on your journey and you can always email me directly if you want my phone number to talk and ask anything in person.
[email protected]Tom