Medical Forum / Diseases and Disorders / Prostate Cancer / October 2003
Post surgery PSA detection
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pennskeCT - 17 Oct 2003 18:48 GMT Greetings everyone, my brief PCa history: Current age = 47.4 PSA 8.0 09/01, No prostate related problems or issues. DRE negative PSA 9.2, f PSA - 6% 10/01, DRE negative DRE positive, biopsied, - Diagnosed, T2c, Scored Gleason 8 - 11/13/01 Second and third opinions (another uro and radiation oncologist) - 12/01 RRP & seral nerve transplant, lymph nodes & margins negative, scored Gleason 7 - 01/14/02 Post-RRP PSA: ND (<0.1), ND (<0.1), ND (<0.1). 09/03 - PSA test 0.03.
The most recent PSA test was performed by the same lab as previously, but using the bayer centaur assay (with a lower detection limit) form the prior abbott assay. I didn't know the lab was changing to the lower DL.
OK, I am trying to tell myself not to suffer from post-RP PSA anxiety, and I am doing a decent job not getting too wound up. But this detection has released a flurry of thoughts and questions for me to better understand my situation and what to proceed to do.
If PSA > 0.01 folllowing an RP, what besides PCa cells could/would cause the detections, and cause some of the small variations that some people said are possible (besides the obvious - variations attributed to the analytical method)?
They discuss getting "rebaselining" done. Given the low detection and prior NDs is there anything or reason to rebaseline?
Should my testing frequency be revised from every six months?
What is a PSA threshold for considering starting a regimen? 0.2?, 0.6? how does doubling time play a role at these lower levels?
How many doubling intervals are critical to understanding cancer growth at this low detection?
What is clinical diagnosis of PCa following an RP?
I appreciate any inputs before I schedule my next appt to discuss this with my doctor. Thank you......pennske
MH - 17 Oct 2003 19:44 GMT Hi, guy.....
If I'm reading you right, your latest PSA is 0.03???
Mine has been < 0.04 ever since my surgery in November of 2002. The lab just doesn't read any lower, I assume. I thought the ideal Nadir PSA was < 0.1 . If that's the case, you are certainly waaaaaaaaaaaaaaaaaaaaaaay below that! Three hundredths is *undetectable*.
I worry every time I go for a PSA test, so I know how anxious it can make you. But I don't see that you have *any* reason to be concerned with your recent reading. Seems there is going to be a certain margin of error in any test of this type...
I think you should be celebrating! Sounds to me like you are still doing great!! I wish you a lifetime of undetectable PSAs!!
MikeH
> Greetings everyone, > my brief PCa history: [quoted text clipped - 43 lines] > with my doctor. > Thank you......pennske Steve Kramer - 17 Oct 2003 20:41 GMT CT,
You have absolutely nothing to worry about. 0.03 is 3/100ths of a nanogram. There is no equipment that I know of that _reliably_ tests to the 100th of a nanogram. All of your PSAs were likely actually higher that 0.00 and less than 0.10. Less the 0.10 is considered "virtually undetectable". It is the level that we all seek.
Even if you go over 0.1, your uro will not get upset. Or 0.15. Or maybe even 0.20. Each time I went over 0.30, having been ? that or ? that, my uro got antsy. But you are no where near that point.
As I and others here have said, they shouldn't even report numbers less than 0.1.
 Signature Steve Kramer PSA 16 10/17/2000 @ 46 Biopsy 11/01/2000 G7 (3+4), T2c RRP 12/15/2000 PSA .1 .1 .1 .3 .4 .8 EBRT 05-07/2002 @ 47 PSA .3 .2 .2 .2 .3 Erection 05/12/2003 @ 48 Begin Lupron 07/21/2003 @ 48 PSA .1
> Greetings everyone, > my brief PCa history: [quoted text clipped - 43 lines] > with my doctor. > Thank you......pennske c palmer - 17 Oct 2003 20:52 GMT hi pennske - i agree with mike on the <.04
when they ran my post op psa tests, they came back at .04, which i thought was doing good. the surgeon didn't like even that one and ran it again. this time, it came back at <.04
in checking the records for the first psa testing, it seems that someone left off the < sign. gee, i guess it doesn't mean much to them, but it sure does in our neck of the neighborhood.
by the way, < .04 is the lowest that test will read.
wishing you a lifetime of undetectables.
~ curtis
knowledge is power - growing old is mandatory - growing wise is optional
jimhoney - 17 Oct 2003 20:57 GMT This question comes up every now and then on this group.
Some of the answers to your questions appear on the discussion on this Web site: http://www.aacc.org/access/prostate/qanda.stm Specifically, that doctor knows of no trials involving people with readings as low as yours.
Several of us here do not even care to know what our postop readings below 0.1 are, because we believe they have no meaning.
jimhoney
> Greetings everyone, > my brief PCa history: [quoted text clipped - 43 lines] > with my doctor. > Thank you......pennske ron - 17 Oct 2003 23:45 GMT > Greetings everyone, > my brief PCa history: [quoted text clipped - 43 lines] > with my doctor. > Thank you......pennske Boy we can all relate to your anxiety, but hang in there. To answer some of your questions, PSA is produced by other glands (so women have a detectable PSA level), but usually at a level below those we normally encounter in our PSA tests. Also, some prostate tissue might be left behind. Typically, 1 cubic centimeter of normal prostate tissue will produce about 0.066 ng/ml. So if just 0.5 cc (not much!) tissue remains, it could explain your result. Lab errors are also not unheard of. As far as testing frequency, I'd suggest doing whatever gives you peace of mind. If your feeling a bit anxious, then maybe remeasure it in a month and start to develop a new baseline with this ultrasensitive test. If it's not a big deal, then wait 6 months. Doubling time is one of the best measures of PCa aggresiveness at any PSA level, even low levels.
More and more researchers and clinicians are starting to use 0.2 as the cut point for defining biochemical failure, independent of the treatment method (e.g. RP, RT, etc.). If your PSA evers moves steadily from 0.03 to 0.06 to 0.12, then you have an early warning that recurrence may be happening. The ultrasensitive test gives you a chance to notice this at a very early stage. Then you have the opportunity to begin thinking and planning with your doc, so that if and when it gets around 0.2, you can take action with another treatment plan. Starting a second mode of treatment around 0.2 gives you a much more favorable chance to beat the recurrence, then waiting until the PSA hits 1-2...Best wishes and good health!..Ron
DanR - 18 Oct 2003 14:15 GMT Pennske, There is at least one trial that will take a patient with < 0.1 PSA. I suspect there may be more.
My RRP 22MAY03, resulted in positive margins and involvement of the seminal vesicles. Post-OP PSA scores: 1 mo - 0.031, 2 mo - 0.064, 3 mo - 0.04x.
I was referred to a GALG-B Phase III trial combining Mitoxantrone and Prednisone (2x daily) with Casodex (daily) and Zolodex (injection every 12 weeks). Doing the Mito every 21 days for six sessions with prednisone 2x daily, as ARM II of the trial. ARM I doesn't get the Mitoxantrone or Prednisone.
This particular trial requires failed RP (among other qualifiers), and registration within **120 days of surgery**.
They are currently recruiting patients and it looks like there are clinics across the country that are participating.
Study IDs: CDR0000067352; SWOG-S9921; CLB-99904; CTSU
There may be other studies out there that you may be eligible for, the Protocol sticks to the 120 day post-op registration.
Although, with a 0.03 I'd at least wait until a 2nd report using the more accurate assay before worrying. Best of luck, DanR
Bill Denton - 19 Oct 2003 20:12 GMT Guys, guys, this is getting ridiculous! Until very recently <.1 was the lowest PSA labs could give. They were not rounding up to .1; the machine would just not even give a reading of .1 so it was reported less than .1. That was considered undetectable even though, had the sensitivity of the test been greater, actual PSA level may have been anywhere from 0 to .09. (I had a couple at <.1, and then a .1 so I insisted on an ultrasensitive test and it came back .07. I was overjoyed.) No doctor in the world would have suggested salvage treatment based only on a PSA less than .1. (OTOH salvage treatment may be recommended in some very high risk cases regardless of post-op PSA.) Now ultrasensitive assays are available that report to the nearest hundreth down to .03 or so, but has that changed the approach in cases of PSA less than .1? Not to my knowledge. As far as I know, a PSA of .09 is still considered undetectable. Although Walsh's book is going on 3 years old, he discusses the ultrasensitive tests and cautions against concern over "analytical variations" below .1: "if it's less than 0.1, we assume it's the same as nondetectable, or zero." [pp. 302-03] Indeed, I suspect a woman would show a .03! Now, this may all change w/ the advent of the new tests, but I don't think it has happened yet. If anyone knows otherwise, I would like to hear it.
Dan, your doctor did not put you in that chemo-HT study because you had a .04 or .06. There is no evidence that you had a failed RP. Per Walsh and everything I've read, biochemical failure is not considered to have occurred until .2. I have been at .2 for almost a year now and my uro, perhaps the leading one in this area, says he would not take any action until .3. (And I had seminal vesicle involvement too.) OK, I just looked up the trial you are in, and some of your description is innaccurate. The trial does not require failed RP; to the contrary, it requires "undetectable PSA (no greater than 0.2 ng/mL) documented after surgery." The purpose of the trial is to see what drug combos may stop or slow down recurrence in high-risk patients. You should be thrilled to know that your RP may have in fact been completely successful, you have not had a recurrence, and you are not being treated for one!
Since I am at .2, I am extremely interested in any experiences w/ possible recurrent PCa, any doctors' advice re same, and any studies anyone may have seen on the subject. But, all you guys fretting over PSA .04 - .09: puuuuuuleeeeease!
Bill Denton RP 2/12/02 Memphis
Steve Kramer - 19 Oct 2003 22:05 GMT I hope you don't throw me in that mode. I'm happier than hell with my 0.07 or anything <0.1. As far as experience with recurrent PCa, mine is pretty well laid out below. More detailed numbers (not rounded up or down) follows.
 Signature Steve Kramer PSA 16 10/17/2000 @ 46 Biopsy 11/01/2000 G7 (3+4), T2c RRP 12/15/2000 PSA .1 .1 .1 .3 .4 .8 EBRT 05-07/2002 @ 47 PSA .3 .2 .2 .2 .3 Erection 05/12/2003 @ 48 Begin Lupron 07/21/2003 @ 48 PSA .1
PSA 10/17/00 16 Biopsy 11/01/00 G7, 3+4=7, T2c RRP 12/15/00 PSA 03/01/01 <0.1 -99.38% PSA 06/01/01 <0.1 0% PSA 09/01/01 <0.1 0% PSA 12/01/01 0.27 170% PSA 03/01/02 0.37 37% PSA 05/01/02 0.75 103% Radiation Begin 05/05/02 Radiation End 07/03/02 PSA 08/01/02 0.34 -55% PSA 10/01/02 0.22 -35% PSA 12/01/02 0.15 -32% PSA 04/01/03 0.21 40% Erection 05/12/03 PSA 07/18/03 0.32 113% Lupron Begin 07/21/03 PSA 10/09/03 0.07 -78%
> Guys, guys, this is getting ridiculous! Until very recently <.1 was > the lowest PSA labs could give. They were not rounding up to .1; the [quoted text clipped - 41 lines] > RP 2/12/02 > Memphis ron - 20 Oct 2003 03:46 GMT Hi Bill...I've attached the abstract of the paper that I used as the basis of my earlier remarks in this thread. The key points are 1) ultrasensitive tests have value in predicting recurrence and 2) they can provide an earlier "heads up" on recurrence, thus permitting earlier planning and attack, and, consequently (hopefully) a better chance of beating the recurrence...Ron RRP 02/03
Doherty AP, Bower M, Smith GL, et al. Undetectable ultrasensitive PSA after radical prostatectomy for prostate cancer predicts relapse-free survival, Br. J. Cancer 83:1432-6, 2000
Radical retropubic prostatectomy is considered by many centres to be the treatment of choice for men aged less than 70 years with localized prostate cancer. A rise in serum prostate-specific antigen after radical prostatectomy occurs in 10-40% of cases. This study evaluates the usefulness of novel ultrasensitive PSA assays in the early detection of biochemical relapse. 200 patients of mean age 61. 2 years underwent radical retropubic prostatectomy. Levels < or = 0.01 ng ml-1 were considered undetectable. Mean pre-operative prostate-specific antigen was 13.3 ng ml-1. Biochemical relapse was defined as 3 consecutive rises. The 2-year biochemical disease-free survival for the 134 patients with evaluable prostate-specific antigen nadir data was 61.1% (95% CI: 51.6-70.6%). Only 2 patients with an undetectable prostate-specific antigen after radical retropubic prostatectomy biochemically relapsed (3%), compared to 47 relapses out of 61 patients (75%) who did not reach this level. Cox multivariate analysis confirms prostate-specific antigen nadir < or = 0.01 ng ml-1 to be a superb independent variable predicting a favourable biochemical disease-free survival (P < 0.0001). Early diagnosis of biochemical relapse is feasible with sensitive prostate-specific antigen assays. These assays more accurately measure the prostate-specific antigen nadir, which is an excellent predictor of biochemical disease-free survival. Thus, sensitive prostate-specific antigen assays offer accurate prognostic information and expedite decision-making regarding the use of salvage prostate-bed radiotherapy or hormone therapy.
> Guys, guys, this is getting ridiculous! Until very recently <.1 was > the lowest PSA labs could give. They were not rounding up to .1; the [quoted text clipped - 17 lines] > it has happened yet. If anyone knows otherwise, I would like to hear > it. ...snip...
> Since I am at .2, I am extremely interested in any experiences w/ > possible recurrent PCa, any doctors' advice re same, and any studies [quoted text clipped - 4 lines] > RP 2/12/02 > Memphis otfiddler - 20 Oct 2003 14:36 GMT > Hi Bill...I've attached the abstract of the paper that I used as the > basis of my earlier remarks in this thread. The key points are 1) [quoted text clipped - 3 lines] > chance of beating the recurrence...Ron > RRP 02/03 My difficulty with any kind of test is, if it isn't repeatable with a very small "tolerance band", then it is not completely reliable. In other words, if the ultrasensitive PSA is .05 and the tolerance is plus-or-minus .02, you could get .05, .04, .07, and that could be .03, .06, .09 --- there's your doubling, right? But your data is unreliable unless you KNOW it's plus-or-minus very little, maybe .002.
What is the "tolerance" for the ultrasensitive PSA? Anybody got info on what tests have been done to establish it?
Larry
ron - 20 Oct 2003 22:52 GMT Larry...the ultrasensitive tests are accurate to better than 0.01 ng/ml when run by qualified labs. Here is an excerpt from http://www.aacc.org/access/prostate/qanda.stm Lots of other good info on the ultrasensitive test there too...Ron
How reliable are these third generation PSA assays? How is lot-to-lot variation? How do you control these assays? Are there commercial controls available and how reliable is it? Irvine, California Lynn R. Witherspoon, MD
Our work was done using DPC’s Immulite assay. “Reliability” may be defined in terms of sensitivity, precision, accuracy, and specificity. So-called 3rd generation PSA assays must have clinically useful detection limits <0.01 ng/ml. Analytical sensitivity needs to be < 0.005 ng/ml and functional sensitivity (20% cv) <0.01 ng/ml. An assay control with target concentration near this concentration is required and should be monitored each shift the analyzer is run. We observe between assay cvs of <10% over many months. Stable control materials are available from several manufacturers. It may also be useful to use aliquots of serum obtained after prostatectomy but gradual loss of immunoreactivity from deep frozen samples has been observed. We have not observed significant lot to lot variation in the estimate of these low concentrations but reagent lot changes, particularly of substrate, should be examined closely. The DPC Immulite assay is essentially equimolar in its detection of PSA isoforms. We observe differing baseline estimates of “PSA” in men post prostatectomy, varying from near 0.001 to near 0.01. Apparent baseline concentrations are, however, quite stable unless residual prostate tissue is present. These differences may reflect individual patient differences in PSA isoforms. In summary, we find this to be a remarkably stable and reliable assay, performing with consistency over a number of years.
...snip...
> My difficulty with any kind of test is, if it isn't repeatable > with a very small "tolerance band", then it is not completely [quoted text clipped - 8 lines] > > Larry Bill Denton - 20 Oct 2003 16:16 GMT "I've attached the abstract of the paper that I used as the basis of my earlier remarks in this thread."
Thanks, Ron; I've saved it and will look into it. I have no problem w/ your remarks, which were consistent w/ mine that there is no accepted recurrence until .2 or so. I was (and am) concerned that Dan was disseminating info that men w/ post-RP of .06 had recurred and should be treated for it.
Steve, I wish I could put you in that category but you have already had 2 recurrences so you have every reason to watch yours more closely. That said, I'd sure hate to see you jumping into chemo w/ a PSA under .1.
My uro is still using the old assay at Dianon and, frankly, I think it is tantamount to malpractice to use that test to monitor post-RP patients when much more sensitive tests are readily available now and seem to have proven themselves.
Bill Denton RP 2/12/02 Memphis
Steve Kramer - 20 Oct 2003 19:34 GMT > Steve, I wish I could put you in that category but you have already > had 2 recurrences so you have every reason to watch yours more > closely. That said, I'd sure hate to see you jumping into chemo w/ a > PSA under .1. If you're talking Lupron, while I know it's technically chemotherapy, it's not commensurate with other chemo. In any case, the fact that my PSA is under .1 is the reason my uro believes Lupron can possibly kill it off. I was skeptical too until Brody checked in.
 Signature Steve Kramer PSA 16 10/17/2000 @ 46 Biopsy 11/01/2000 G7 (3+4), T2c RRP 12/15/2000 PSA .1 .1 .1 .3 .4 .8 EBRT 05-07/2002 @ 47 PSA .3 .2 .2 .2 .3 Erection 05/12/2003 @ 48 Begin Lupron 07/21/2003 @ 48 PSA .1
Bill Denton - 22 Oct 2003 17:07 GMT Bill: "I'd sure hate to see you jumping into chemo w/ a PSA under .1."
Steve: "If you're talking Lupron, while I know it's technically chemotherapy, it's not commensurate with other chemo."
Steve, I was referring to DanR, who is in a chemo trial w/ a PSA of .04! I think you would agree that that is way early.
Bill Denton RP 2/12/02 Memphis
Steve Kramer - 22 Oct 2003 23:18 GMT I would agree that it would be very early. I was shocked when I read that one.
 Signature Steve Kramer PSA 16 10/17/2000 @ 46 Biopsy 11/01/2000 G7 (3+4), T2c RRP 12/15/2000 PSA .1 .1 .1 .3 .4 .8 EBRT 05-07/2002 @ 47 PSA .3 .2 .2 .2 .3 Erection 05/12/2003 @ 48 Begin Lupron 07/21/2003 @ 48 PSA .1
> Bill: "I'd sure hate to see you jumping into chemo w/ a PSA under > .1." [quoted text clipped - 8 lines] > RP 2/12/02 > Memphis DanR - 24 Oct 2003 22:16 GMT Bill, If I may. With positive margins, seminal vesicle involvement, and a very low PSA that did increase - why would I want to wait? The technology is available today that tells me I am not clean of cancer. If my PSA is not technically undetectable after the chemo in January I will go to radiation therapy. There is still a chance for a cure, and that chance is better the sooner I do something about it. I don't believe I'm "recurrent", I know I the surgery failed to get all the cancer. DanR
andy - 27 Oct 2003 06:21 GMT I have been following this newsgroup for several years, but not as well since being transfered to Houston earlier this year from the NE. At times I participated, but generally just lurked. Although I have seen several short discussions on the value of hypersensitive PSA testing in the past, this is the first thread that I have noticed that has posts that indicate that some of you have gone into this subject as I have in the last few years.
I apologize in advance if I am too long winded or if I offend anyone. I don't intend to offend, only to share some of what I believe and hope it makes sense to you all.
For a couple of years after my RP in 1998, my doctor ordered the standard PSA test from Dianon Labs. A good, well regarded lab. During those years I was trying to educate myself about my disease and learned what I should have known before the surgery. (I suspect that most of us did the same after the fact.) Within my readings, I learned that there was more than one opinion in the medical community about PSA testing just as I knew from earlier experiences that much of medicine is trial and error and some docs are better at it than others. This is not an exact science.
Part of my acquired knowledge includes the view that many/most physicians, like many of us, are conservative in their professional/business lives and are slow to accept new things/methods. I have also learned that modern measurement methods/tools in many scientific and engineering disciplines are providing accurate results that only a few years ago was unimaginable.
So, why isn't hypersensitive (ultrasensitive) PSA testing accepted as is the standard method (typically >0.1 ng/ml)? I found several medical articles and references that contend that hypersensitive testing IS accurate and repeatable. My doctor, although a great surgeon, followed the standard line and contended that the sensitive test was not accurate enough to be believed. His opinion conflicted with my opinion based on my readings.
Folks, in my opinion we are wrong and possibly hurting ourselves when we take what a medical professional tells us as gospel, without questioning, without understanding, on blind faith. We need our doctors, but we need to be in control or, at least, participate in a meaningful way. Know what is going on, understand, agree, approve, ask questions, expect answers (that can be understood). For those of you who cannot or don't want to and are satisfied with only what your doctors tell you...good luck.
Disregarding the fact that 1/2 of all doctors have finished in the bottom half of their graduating classes, there are really good and respected doctors who will not readily accept advancement until that advancement is proven over and over and over. Many advancements in prostate cancer treatment, are happening relatively fast. Do we discount them because they are new?
After 2 years reading and of receiving <0.1 or "undetectable" test results, I called Dianon and spoke to the lab manager about hypersensitive testing and asked why it was thought to be not as good as the standard test. His answer was that it was as good, he said he could repeat the results over and over again with the same accuracy as the standard test. Argue with him if you disagree, not me; I heard what I heard. I then forced the issue with my doctor and began hypersensitive PSA testing.
In 2000 I started at 0.04 and from then on until now the 6 month test results have shown a slow steady increase with only one slight blip down. (Some of the tests I had repeated with the same results. Sounds accurate to me.) My doctor continues to discount the rise and has noted that he has had RP patients that have had rising PSA's and then leveled off (I don't know for how long). I have also read the same, so I'm hoping. However, next April, with my trend, I will no longer be "undetectable". I will be somewhere north of 0.1.
Bye the way, for those of you who may reply that I must suffer from PSA anxiety. I don't. Really. I am not nervous before going for the blood letting and the poke. And I don't lose sleep. But, I do try to be aware of what is going on with me.
Although the PSA test result is currently thought to be the best indicator of PCa both pre and post treatment, it is not infallible. So, with my rising hypersenitive PSA, I have also requested other blood tests. My doctor has not recommended any. But I still got them. They are not the topic of this post, and when that information is more conclusive, I'll share anything of value with this newsgroup then.
Also, for some of you who may ask, what if the hypersensitive is accurate enough to predict an early recurrence, what do you do then? That answer is tougher than believing that the hypersensitive is a good tool to provide early information. I don't know...yet, what to do. My understanding is that you won't readily get treatment unless the PSA goes up so fast, in the hypersensitive range, that you are in the standard range and at 0.2 (the current "magic" number for official notice) or above by the time an alert doctor agrees to make the decision to treat you.
However, I do think that you need to get as many facts about your disease as early as you can. "Facts" generally mean test results. Not just PSA. If they are unremarkable in your opinion, as well as your doctor's, fine. If not, YOU have to exercise your right to pursue the goal of knowledge about yourself and to protect yourself, and if necessary to get ready to make a treatment decision with a really good doctor when you know enough. Wouldn't it be a shame to miss an earlier chance of effective treatment while your disease more strongly establishes itself?
Andy
Steve Kramer - 28 Oct 2003 01:13 GMT That was quite a treatise. Of course, I'm no long very happy with my 0.07.
 Signature Steve Kramer PSA 16 10/17/2000 @ 46 Biopsy 11/01/2000 G7 (3+4), T2c RRP 12/15/2000 PSA .1 .1 .1 .3 .4 .8 EBRT 05-07/2002 @ 47 PSA .3 .2 .2 .2 .3 Erection 05/12/2003 @ 48 Begin Lupron 07/21/2003 @ 48 PSA .1
> I have been following this newsgroup for several years, but not as > well since being transfered to Houston earlier this year from the NE. [quoted text clipped - 101 lines] > > Andy Bill Denton - 27 Oct 2003 17:09 GMT "With positive margins, seminal vesicle involvement, and a very low PSA that did increase - why would I want to wait? The technology is available today that tells me I am not clean of cancer. If my PSA is not technically undetectable after the chemo in January I will go to radiation therapy. There is still a chance for a cure, and that chance is better the sooner I do something about it. I don't believe I'm "recurrent", I know I the surgery failed to get all the cancer.
Dan, the problem I had w/ your post was that the thread started w/ a guy worried over a PSA of .04 and you implied to him that he had recurred and should be getting treatment. You flat out said that the chemo trial you were in was for failed RPs [not true]; therefore, you were saying that, since you were in it w/ a PSA of .03, you had a failed RP. Failed RP or recurrence - call it what you like but there is no generally accepted medical principle I know of under which you would be deemed to have had either. The same w/ the initial poster. I am all for the ultrasensitive test to monitor post-RP patients but the thresholds for detectability, recurrence, and salvage treatment have not changed to my knowledge. OTOH, as I stated before, you are at high risk of recurrence so prophylactic additional treatment for you was not uncalled for. I don't disagree w/ your decision to proceed based on that and the minute increase in PSA, but I just don't think it can be extrapolated that anyone w/ PSA detectable w/ the ultrasensitive test needs treatment. Are you saying you are going to proceed to RT if you don't get a PSA below .03? Wow. Are you sure your insurance carrier will pay for it?
A most important question that arises out of all of this is "in post-RP patients, what level of PSA, if any, is evidence of PCa as opposed to benign tissue." Until the ultrasensitive test the lowest level was <.1 so that was deemed the threshold of detectability, but now we know PSA can be detected at lower levels. Where is the problem point? Your doctor may be right that any increase, even below .1, is evidence of active cancer, and that is not a happy thought for any of us. But it may well be that some benign tissue left behind can account for a few hundreths PSA and that the immune system can knock out trace PCa cells w/o treatment. The question is when do you take action? I am at .2 and posed it to my doctor as you have here - if it's a question not of if but when, why wait? Since I have been at .2 for almost a year now, he thinks I could stay at this level for quite a while w/o treatment. Of course, if the PCa is metastasizing as we wait, it would be a horrible mistake.
Bill Denton RP 2/12/02 Memphis
DanR - 27 Oct 2003 23:27 GMT Bill, My response was not intended to state he had recurrence, rather it was in response to his questions about options. I agree it would be wrong to extrapolate that any rise using the ultra sensitive indicates recurrence. I would add though, that if an individuals is a known high risk case, any rise isn't good news.
I am saying that if my PSA is not at a level that my doctor considers undetectable I will go for the radiation. I have a treatment planning session currently scheduled for 26 Jan - I hope to cancel it! (And yes my insurance will cover it.)
This is my plan. I know of no one else who is approaching this as aggressively. Is it overkill - I can't answer that.
Thanks for the feedback - wishing everyone undetecables. DanR
Danny McCarty - 28 Oct 2003 09:12 GMT >Subject: Re: Post surgery PSA detection >From: DanR dr2354@hotmail.com [quoted text clipped - 18 lines] >Thanks for the feedback - wishing everyone undetecables. >DanR Radiation to the prostate bed? Early in the disease, with no bone scan or sonogram evidence of metastasis, this may work. You will still be getting blood tests for PSA every 3 months for a year or two after radiation. If that "high" PSA was from a met too small to see in a bone scan, it may continue to rise after radiation, as you expect now, or it may level out as your doctor hopes. The thing about the supersentive PSA is that the quantities of PCa cells involved may be so small that the immune system can control them. It may take years for them to assemble a large enough army to overwhelm the immune system and go on rampage.
Tom Wiener - 28 Oct 2003 15:10 GMT I faced a similar problem:
Biopsy based on PSA of 2.37, nodule felt on DRE Diagnosis Stage T2b, Gleason 3+4=7 RRP 5/2000 Positive surgical margins, one micropenetration of the capsule PSA: 07/07/00 0.005 08/22/00 <0.002 11/13/00 <0.002 02/12/01 0.026 3//2001 0.017
Note my lab (Walter Reed Army Medical Center) reports 0,002 as the lowest detectable reading. Underwent EBRT (66.6 Grays, 35 sessions) in April and May 2001. PSA 08/06/01 0.004 11/01/01 <0.002 01/01/02 <0.002 05/09/02 0.012 08/06/02 0.002 10/24/02 0.002 01/07/03 0.012 04/11/03 0.007 07/08/03 0.008 10/1/03 0.012
So I got the PSA down for a couple of quarters, but it's been bouncing around a reported value of 0.01 since.
At this point I'm going along with my urologist because I don't see anything else useful to do now.
My intention, log delayed, is to pursue the accuracy, sensitivity, and repeatability of PSA measurements at low values of PSA. As others have noted, doctors are generally happy if the number is low and not moving, and generally unwilling to act unless the PSA is higher than 0.1.
My wish is that I can do some research to make clear what is being measured and what it really means as an indicator of the presence of PSA. Then the doctors can begin to form some conclusions about the clinical significance of the reported numbers.
And perhaps I can develop a definition of "undetectable" that will help a layman's understanding.
Desultorily,
Tom
chuck@undetectable.com - 29 Oct 2003 14:37 GMT I have had two postop PSA levels in the "undetectable" range. When I get that report I don't really get into it because if the uro is happy so am I. It is tough enough as the date for the next PSA draws close and remains so until I get the results a few days later. All of us appreciate the folks who put on their thinking caps and get into the true meaning of "undetectable."
Chuck H.
Bill Denton - 29 Oct 2003 16:18 GMT "08/06/01 0.004 11/01/01 <0.002 01/01/02 <0.002 05/09/02 0.012 08/06/02 0.002 10/24/02 0.002 01/07/03 0.012 04/11/03 0.007 07/08/03 0.008 10/1/03 0.012"
Tom, your numners demonstrate a point I have been trying to make - don't freak out over one "high" reading. A couple of times you went from .002 to .01 and back - a 600% change! These are the "analytical variations" to which Walsh refers and, in the words of my uro, are just "noise."
"My intention, log delayed, is to pursue the accuracy, sensitivity, and repeatability of PSA measurements at low values of PSA. As others have noted, doctors are generally happy if the number is low and not moving, and generally unwilling to act unless the PSA is higher than 0.1. My wish is that I can do some research to make clear what is being measured and what it really means as an indicator of the presence of PSA. Then the doctors can begin to form some conclusions about the clinical significance of the reported numbers. And perhaps I can develop a definition of "undetectable" that will help a layman's understanding."
Go to it, Tom.
Bill Denton RP 2/12/02 Memphis
Tom Brodzeller - 20 Oct 2003 15:49 GMT Bill -That was a great explanation of the Ultra sensitive test after a RP.
You are right on top on the matter. It is most important .
Why would someone wait until they have bulky disease - I would want to start treatment once it has shown that the PSA is raising and what the doubling time is. This would be most important after the RP. Most of you guys keep quoting Dr Walsh's Book which of course is his opinion.
I believe a much better book is By Dr Steve Strum -His book is "A Primer on Prostate cancer " It can be found on www.Amazon.com Strum states the importance of this US test. Also this is probably the best book for the newly Dx'ed patient --he talks about all the treatment options in full detail. Tom Brodzeller in Phx --IMRT grad 2002
> Guys, guys, this is getting ridiculous! Until very recently <.1 was > the lowest PSA labs could give. They were not rounding up to .1; the [quoted text clipped - 17 lines] > it has happened yet. If anyone knows otherwise, I would like to hear > it. pennskeCT - 23 Oct 2003 18:41 GMT Many thanks to all for sharing your thoughts and opinions. It is amazing what one new data point can do to one's life not unlike the effect of that first PSA test at age 45 that started me on this unexpected path.
I have celebrated the 20 months since my RRP, each ND bringing a sigh of relief. i appreciate people's frustration at my initial angst over the low detection, but one can only draw one significant conclusions about my current situation without additional PSA results. Unless there is lab error, regrettably, the sole conclusion I can draw at this point, 20 months post-RRP, is SOMETHING is causing some low level of PSA in my body and we all know the probable suspect. Since the US PSA test was only done recently, my prior non-detections at the higher detection limit do not offer any additional insight on this recent detection. Other conclusions about my PSA result are premature at this point.
Does it stop me from living or enjoying life? No. And I do believe the US test is a good thing, PSA anxiety aside. Since we are concerned with PCa recurrance, something that will give us a head start on understanding the recurrance and its timing is important in my eyes. I think it is premature to initiate a treatment regime at this level however IF a sustained rise in PSA (probably about 0.2, depending on the rate of change) is documented through continued testing, I will have a chance to attack the problem earlier than if I was waiting for a 0.1 to initiate my evaluation.
Peace and strength to all in you in your continued dealings with PCa.
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