Latest / Intellectual Medicine / Why The Gleason Scores Fail Men
Transcript
- 0:00So the Gleason score is subjective.
- 0:02The Gleason score is variable even when the same cells are
- 0:06looked at by different pathologies.
- 0:09All of which means it's a dart on the wall does not predict
- 0:15aggression. Aggression we judge with
- 0:18sequential assessment. I advocate PSA levels at three
- 0:22month intervals. Guys, do not suffer yourself
- 0:25with PSA anxiety syndrome. Stop.
- 0:30This is a slow moving train. 2 frequent points can lead to
- 0:34confusion and misguided assessments.
- 0:40Well I've heard the argument that you have to have a biopsy
- 0:45so you can tell what the Gleason score is.
- 0:49I'm going to tell you why the Gleason score in my view is
- 0:53irrelevant. But wait, how will I know how
- 0:58aggressive my cancer is? These terms have been confused
- 1:04for decades, and the Gleason score, like the PSA, has been
- 1:10leveraged to create anxiety to have men rush into the arms of
- 1:16treatment that does harm but doesn't achieve the objective.
- 1:21What's the objective? Not dying from prostate cancer.
- 1:26So we've got to be thoughtful about how we connect the dots.
- 1:31Does a Gleason score tell you how aggressive the cancer is?
- 1:37No, it doesn't do that. Doctor Gleason, probably a very
- 1:42nice guy back in the 1970s and 80s, was charged with, or maybe
- 1:47with 60s, was charged with the responsibility of describing
- 1:52what the cells look like under a microscope.
- 1:56He judged them as best he could. Well, it's a little bit
- 2:00disorganized. I'm going to call that a three.
- 2:03That one's more disorganized. I'm going to call it a four.
- 2:06You get the picture. It was a subjective guesstimate
- 2:10based upon what he thought the cell looked like.
- 2:14As a consequence, he came up with a Gleason score, zero to
- 2:1810. Now the lowest the score can
- 2:21ever be is a six. So a Gleason 6 is the bottom of
- 2:26the pyramid. Recently it's been relabeled
- 2:29instead of the numeric scale, 6 to 10.
- 2:34They call them grades. So Grade 1 is the old number
- 2:38six. It's like on the highway, they
- 2:40change your off your exit ramp. They're just renaming stuff.
- 2:44They're trying. They're trying to get their arms
- 2:47around it. They're trying to have the
- 2:49Gleason score means something relevant.
- 2:53It doesn't. It can give you a prognosis.
- 2:59Now that's a different than a judgement of aggression.
- 3:03A prognosis based on a Gleason score is predicting what's the
- 3:08likelihood of future progression or death from prostate cancer.
- 3:14It does have some correlation, but it's not worth exposing you
- 3:18to the risk of a biopsy to get information that, in my view,
- 3:23will not affect your treatment. Now, what is the term?
- 3:26How do you determine then aggression?
- 3:28Dr. If I don't get a biopsy, how do I know how aggressive my
- 3:31cancer is? How do I know what treatment to
- 3:33do? I'm going to tell you that's why
- 3:35you tuned this in. Is my fist aggressive?
- 3:40It could be if it were coming at you, right?
- 3:44That's the difference between static and kinetic energy.
- 3:48The kinetic energy behind a prostate cancer progression is a
- 3:53point of change from point A to point B.
- 3:57Now, you could, if you chose to do this against my advice.
- 4:01If you chose to get sequential biopsies, you could potentially
- 4:06correlate some change. Here's the problem, amongst
- 4:09others. The Gleason score itself is
- 4:13subjective. In some studies there's been as
- 4:16much of A 50% discrepancy in how 2 pathologists interpreted the
- 4:23same slide. It means the first pathologist
- 4:26called it a Gleason 6, the next one called it A7, the third one
- 4:30called it an 8. Was all over the place.
- 4:33So there's a lack of concordance, significant
- 4:37deviance in how it's interpreted.
- 4:40The take home message for those of you that have had Gleason
- 4:43scores performed and are contemplating a treatment based
- 4:46on a number, have another pathologist take a look at that,
- 4:51not somebody from the same hospital.
- 4:53You don't want his buddy on the the bench next to him.
- 4:56There's conformity bias at play. He doesn't want to make his
- 4:59friend feel bad. It should be a totally
- 5:01independent location. You have to consider human
- 5:04behavior and everything, folks. So the Gleason score is
- 5:08subjective. The Gleason score is variable
- 5:11even when the same cells are looked at by different
- 5:14pathologists. All of which means it's a dart
- 5:19on the wall does not predict aggression.
- 5:22Aggression we judge with sequential assessment.
- 5:25I advocate PSA levels at three month intervals.
- 5:29Guys, do not suffer yourself with PSA anxiety syndrome.
- 5:35Oh my God, what is it this week? Let me see what happens when I
- 5:38eat a doughnut. I'm going to get it done next
- 5:40week. Stop.
- 5:43This is a slow moving train. 2 frequent point can lead to
- 5:48confusion and misguided assessments.
- 5:52So I like 3 month intervals. A prostate MRI.
- 5:56The MRI did not exist when Doctor Gleeson was alive.
- 6:00The PSA wasn't around when he started his score.
- 6:03He did the best he could in the more primitive days.
- 6:07Why we're still doing it has more to say about inertial
- 6:12financial dynamics and conformity bias.
- 6:16Doctors like to do what their colleagues do.
- 6:20Doctors like to do what they've always done.
- 6:24My analogy is to bloodletting. Why do we still do biopsies?
- 6:28Why are we looking at Gleason scores?
- 6:30I'll get to bloodletting in a moment, but the outcomes is what
- 6:35we are after. So it is true, some men will die
- 6:40from prostate cancer. However, that doesn't mean that
- 6:44any of the conventional treatments make a difference.
- 6:48The best research to date has shown that it does not matter
- 6:53that when you looked at the Protect T trial, whether you had
- 6:56your gland removed, had radiation or did nothing, the
- 7:01rate of death from prostate cancer was the same.
- 7:06That's scary to think about, isn't it?
- 7:08That the treatment was not only irrelevant to the outcome of
- 7:11death by prostate cancer, but you, you had harm imposed upon
- 7:16you. So that is very uncomfortable.
- 7:20Another detail about Protect T the outcomes did not matter
- 7:25regardless of the PSA, the Gleason score, or any other
- 7:30variable prior to the surgery, it didn't matter.
- 7:35The Gleason score didn't matter. The surgery didn't help, the
- 7:40radiation didn't help. So you're getting a biopsy to
- 7:43give you psychological comfort, to get a number of Gleason score
- 7:47that gives you and the surgeon a sense of certainty.
- 7:51Another problem with a Gleason score.
- 7:53God, I hate the score. You're only sampling about 1% of
- 7:57the whole gland. I had a patient recently, he had
- 8:0012 biopsies done right. Twelve of these, these trocars
- 8:06jabbing into the prostate. This is a risk of metastatic
- 8:10spread. I don't care what they tell you
- 8:13otherwise they have no proof to defend themselves.
- 8:16You stick a needle in cancer, you make a bloody mess of it.
- 8:21That's cellular spray biology. Common sense and research
- 8:26supports what I just said. What is not supported is any
- 8:32urologist or doctor that tells you it can't happen.
- 8:36That's denying biological reality.
- 8:39So now 12 biopsies my patient had, six of them were a Gleason
- 8:44of six. It's pretty benign.
- 8:47One of the 12 was a Gleason of seven and one only one was a
- 8:52Gleason of eight. So we think perhaps another
- 8:57pathologist, we call it a 7. The point of this story is that
- 9:01based on that one out of 12, they want to take his gland out.
- 9:06Yikes. Now, fortunately, by virtue of,
- 9:10you know, listen to my podcast, he made a different decision.
- 9:13In my view, the Gleason score irrelevant.
- 9:16Back to the blood letter, it was Hippocrates back in his era and
- 9:21before where bloodletting was performed.
- 9:24At the time, they thought that releasing these negative
- 9:27energies could help people recover.
- 9:30In fact, when they did bloodletting, some people
- 9:33recovered, A coincidental phenomenon.
- 9:37We took the blood out and you know, Maximilius over there, his
- 9:41fever went away. A spontaneous recovery
- 9:46coincidentally associated to bloodletting.
- 9:49It reinforced the doctor's confidence.
- 9:52Hey, this is working. Over the centuries, they
- 9:57developed different protocols, very scientific sounding, which
- 10:01vein to drain, how much blood to take out.
- 10:04Let the blood flow until it changes color, Let the blood
- 10:07flow until the patient gets light headed or passes out.
- 10:10This was very scientific, methodical, widely embraced
- 10:15until the 1800s. Folks, we're talking thousands
- 10:20of years of a completely useless treatment.
- 10:25How did it persist in the absence of any research
- 10:30supporting its harm, in the absence of any willingness to
- 10:35contemplate an alternative at that time, and with the
- 10:38coincidence of some people recovering?
- 10:42I maintain the same thing is true today regarding prostate
- 10:46cancer treatment. These toxic treatments that men
- 10:49are exposed to coincidentally on occasion correlate with the lack
- 10:54of disease progression and men in whom it was unlikely to have
- 10:58ever progressed ever. So you have a treatment causing
- 11:03harm, you have a patient who doesn't die, and you have a
- 11:06conclusion that the treatment must have been the reason.
- 11:10Bloodletting folks, it's the same thing.
- 11:13The difference is we now have solid evidence that what we're
- 11:18doing is not helping men. In fact, there is.
- 11:24Well, we're on the cusp of a revolution in prostate cancer
- 11:27treatment. We, you and I, we're on the
- 11:30inside track of what will soon be the non biopsy era of
- 11:34prostate cancer treatment. We need to put this in the
- 11:36rearview mirror. In the United Kingdom recently,
- 11:40they decided as a nation they're no longer going to do screening
- 11:45Psas. That is a screening to judge
- 11:49whether or not cancer may be present.
- 11:51Why they decided to cause more harm than benefit.
- 11:55It's not the screening that does the harm.
- 11:58It's the PSA induced anxiety combined with the doctor saying
- 12:04you're going to die, you're going to die.
- 12:07We need a biopsy. We have to get a biopsy.
- 12:10They don't even think many of these doctors, I've heard many
- 12:13histories from my patients. The doctor got an IPSA, do an
- 12:17MRI. All roads lead to the biopsy.
- 12:20Why? Treatments are not going to be
- 12:23directed by a Gleason score nor the biopsy result.
- 12:27Treatments do not need to be assessed with tissue.
- 12:32The PSA, the MRI, can tell us what's happening.
- 12:36So that's why I don't like biopsies.
- 12:40That's why the Gleason score, in my view, is a useless metric.
- 12:46Nearly useless. Not worth putting you through
- 12:49the risk when the doctor tells you, don't you want to know?
- 12:53Of course you do. But you don't want to expose
- 12:57yourself to harm to get that information.
- 13:00You don't need the tissue. You don't need the biopsy.
- 13:03You don't need the Gleason score.
- 13:05We need to just not worry about reorganizing the Gleason score
- 13:10into better numbers. We need to weigh with it.
- 13:14In my practice, we have in my practice, my protocol, we
- 13:18approach this putting vitality first.
- 13:22We're not nihilistically saying, oh, don't worry about it.
- 13:25Prostate cancers, no worry. Of course it's a concern.
- 13:28Yes, some men die from it, but is it possible?
- 13:32And I believe it is. I believe this is possible that
- 13:35we are actually amplifying and increasing the risk of
- 13:40metastatic disease and by extension the death rate from
- 13:45prostate cancer because of all the biopsies we're doing.
- 13:48Think about it for a moment. We really don't know what the
- 13:53likelihood would be of death from prostate cancer if we just
- 13:57stop doing biopsies. We will have that data in the
- 14:00years to come because we're building patients through my
- 14:04protocol. We've opted out of the biopsy
- 14:07madness and over time, we're going to get the results.
- 14:12And those results, I believe are going to show vitality,
- 14:16longevity and a decrease of death and metastatic process to
- 14:20be determined. All right, gang, Well, enough
- 14:23heresy for one day. Talking about the Gleason score,
- 14:26Why you don't need to worry about ever getting one.
- 14:29If you've had it in the past, that's cool.
- 14:31Just don't do any more. Note, look back, don't look back
- 14:35at your treatment decisions. All of those were made as as
- 14:39best you could with the information at hand.
- 14:42All right, team, until next time, thanks for spending time
- 14:45with me. Let's live vitally.
- 14:47Let's fight cancer like a man.