Add Boston Globe to the list of heart scan blunders 17. September 2008 William Davis (15) Yet another piece of mass media misinformation hit the airwaves today. This time it's not from the New York Times or the LA Times, both of which have previously mangled the issues surrounding heart scans. This time it's from the Boston Globe. In an article titled What is a calcium scan for heart disease, and who should undergo the test?, the report states: ". . . calcium scans may not be a good idea, or prove terribly useful, for most people. For one thing, the scans expose a patient to significant radiation - equivalent to roughly 50 chest X-rays" said Dr. Warren Manning, chief of noninvasive cardiac imaging at Beth Israel Deaconess Medical Center."As many before him, Dr. Manning is confusing two tests: CT coronary angiography and CT heart scanning. Perhaps we can't blame him: This technology has had its weakest following in the northeast, for reasons not entirely clear to me. (In fact, Track Your Plaque followers have had the greatest struggle obtaining heart scans in that part of the country.) Nonetheless, you'd think he'd have his simple facts straight before talking to the press. Unfortunately, hospital public relations departments will usually just grab whoever they can willing to talk to the press--regardless of their expertise or lack of. The story goes on to say:. . ." it's not clear what to do with the results from a calcium scan. If you have diabetes, high cholesterol, high blood pressure, or a family history of heart disease, you already know - or should know - that you are at increased risk of heart problems and should lower these risk factors. So, a calcium scan provides little additional information," Manning said. "Moreover, even a high score doesn't necessarily mean that the calcified plaque in your arteries is obstructing blood flow, said Dr. Adolph Hutter, a cardiologist at Massachusetts General Hospital.""The vast majority of people with high calcium tests don't have obstructions and they do fine long-term. So you'd have to test lots and lots of people to prevent one heart attack or sudden death," said Manning.And if you get a low calcium score, a sign of little or no calcification of plaques, that's not very useful, either, because it could be wrong, or it could be right but lull you into b All posts by william-davis Toggle navigation Home Blog Home Archive Join Now Log in More on being wheat-free 21. April 2007 William Davis (5) Reducing or even eliminating the wheat in your diet can dramatically enhance the phenomenon of insulin resistance. Insulin resistance is the evil process that lies behind low HDL, high triglycerides, small LDL particles, and VLDL and IDL. It’s also the process that makes us tired after meals, heightens inflammation that raises your risk of heart disease, stroke, diabetes, and caner. Insulin resistance is the culprit behind the bulge hanging over some 100,000,000 American belts. Show me a person with a protruding abdomen and I’ll show you a bread lover, or some other form of wheat.Why do I pick on wheat so much? Many of you among the more nutrition-minded would point out that wheat is just one group of food items among many other high-glycemic index foods, i.e., foods that yield a vigorous surge in blood sugar (glucose), followed by a sharp decline. Wheat enjoys the high-glycemic index company of corn, rice (white and brown), potatoes, among others. I pick on wheat because, for most Americans, wheat is 90% of the high-glycemic index problem. (I’m assuming you’ve at least eliminated or dramatically reduced highly-processed sweets like candy, cookies, soft drinks, cakes, etc. That’s a no-brainer.) It’s not uncommon to have a wheat-based product with every meal, a wheat-based snack, 7 days a week. But few people have corn products (i.e., corn starch products) three times a day. Or rice three times a day. Wheat has traded places with saturated fat sources as the chief scourge of diet. In 1985, we had dinners of spare ribs, cheeseburgers, French fries, and butter on our mashed potatoes. Hardly anybody eats that like anymore, at least amongst the web-savvy set. Wheat has assumed the previous exalted role as chief scourge as a consequence of the low-fat consciousness of the 80s and 90s. It has since ballooned in importance in diet and, as a result, skyrocketed as a cause of obesity, insulin resistance, and coronary plaque growth.What if you're already slender and have none of the above issues, especially small LDL particles? Then don't sweat the wheat issue. Note: My comments on being wheat-free should not be confused with gluten sensitivity or celiac disease. These are allergies to wheat gluten that, if undiagnosed, wreak havoc on health to extremes. This phenomenon is separate and distinct from the far more prevalent issue I’m discussing. Can you break the “Rule of 60” 21. April 2007 William Davis (1) In the Track Your Plaque program, we aim for conventional lipid values (LDL cholesterol, HDL cholesterol, and triglycerides) of 60—60—60, i.e., LDL 60 mg/dl, HDL 60 mg/dl or greater, triglycerides 60 mg/dl. Most participants do indeed reach these target values. When I tell this to colleagues, they’re stunned. “You can’t possibly get those numbers in most people.” And I can sympathize with their plight. After all, they are stuck with relatively lame tools: statin drugs, the American Heart Association diet. I’d be surprised if they ever achieved 60—60—60. But can you drop your heart scan score even if you don’t reach the 60—60—60 targets? Yes, you can. The Rule of 60 is only a guideline, a tool that helps more people achieve our goals. The Rule of 60 does not guarantee reversal (drop in heart scan score), nor does not achieving the targets completely destroy your chances. We have had many people drop their scores even if they haven’t reached the targets. On the other hand, we’ve also had people who failed at first, only to see success once they achieved the 60 mg/dl targets. But which one are you? That’s the problem. We possess limited capacity to predict who will or who will not drop their scores from the start. We know that there are factors that stack the odds in your favor (e.g., optimism, lack of Lp(a), ideal weight, vitamin D >50 ng/ml, etc.). We know that there are factors that make it tougher (overweight, Lp(a), pessimistic attitude, underappreciated hypertension, higher heart scan scores, etc.) But at the start, we just don’t know who truly needs to adhere to the Rule of 60. So we suggest that everyone, at least in the beginning, aim to achieve it. I had an exception the other day. Rich did everything by the Track Your Plaque book. However, a starting low HDL of 27 only rose to 37 after one year of effort—way below our 60 mg/dl target. Yet a repeat heart scan showed 23% reduction. Why would Rich be so successful despite a persistently very low HDL? There may be a number of reasons. One explanation could be that conventional measures of HDL fail to distinguish between what HDLs truly work and what do not. Look at ApoA1 Milano; remember this story? The people in the secluded mountain village of Limone-Sul-Garde in northern Italy have HDL cholesterols of 8-15 mg/dl yet do not experience excess vascular atherosclerosis, suggesting that what little HDL they have is super-effective.Yes, large HDL seem to be more healthy and effective than small HDL, but perhaps there’s more to it. However, nobody has a HDL effectiveness test ready for us to use. In the meantime, we continue to suggest that the Track Your Plaque Rule of 60 be considered as a means of making plaque reversal as likely as possible. You and your doctor can always adjust in future, depending on your heart scan score results. Non-profit hospitals 21. April 2007 William Davis (1) Hospitals hide behind a veil of non-profit. Ostensibly operating for the public good, most hospitals enjoy all the business advantages of non-profit status. This means that any profits that flow to the bottom line at the end of the year are not subject to tax. Hospitals point out that profit margins are modest, often ranging from 2-6%. What they don’t tell you is that, regardless of non-profit status, lots of money can be paid out along the way. A hospital CEO who pays himself $4 million dollars a year can work for this non-profit organization. He can also direct the hospital in business expansion: pharmacies, extended-care facilities, medicine and medical supply distributorships. Your friendly hospital CEO, as well as his many administrators, can hold positions in hospital subsidiaries, complete with salaries and perks. Yes, most hospitals are officially non-profit. But that’s a designation for tax purposes. It does not mean that hospitals are non-lucrative. I believe that it’s time for hospitals to drop the façade of “Saint” in their names or other religious names—Methodist, Baptist, Jewish, All Saints’. More accurate would be something like “ABC Medical Enterprises, Inc.” That way, the public would be quicker to recognize that they are dealing with a business run by people eager to make more money. Wheat five times a day 20. April 2007 William Davis (3) Terri couldn't understand why her weight wouldn't drop. At 5'3", 208 lbs., she had the typical mid-abdominal excess weight that went with small LDL, low HDL, high triglycerides, a post-prandial (after-eating) fat clearance disorder, high blood sugar, increased c-reactive protein, and high blood pressure. She claimed to have tried every diet and all had failed. So we reviewed her current "strict" diet:"For breakfast, I had Shredded Wheat cereal in skim milk. No sugar, just some cinnamon and a little Splenda. For lunch, I had low-fat turkey breast sandwich--no mayonnaise--on whole wheat bread. For snacks, I had pretzels between breakfast and lunch, and a whole wheat bagel with nothing on it before dinner. For dinner, we had whole wheat pasta with tomato sauce and a salad. While we watched TV, I did have a couple of whole wheat crackers. "I don't get it. I didn't butter anything, I didn't sneak any sweets, cakes, I didn't even touch cookies. And I love cookies!"Did you see the pattern? I pointed out to Terri that what she was doing, in effect, was eating sugar 5 or more times a day. Many of her meals, of course, contained no sugar. All were low fat. But the excessive wheat content yielded quick conversion to sugar--glucose--immediately after ingestion. Repeated surges of blood sugar like this trigger the excessive insulin response that yields low HDL, higher triglycerides, small LDL, etc., everything that Terri had. Terri was skeptical when I suggested that she attempt an "experiment": Try a four week period of being entirely wheat-free. This meant more raw nuts and seeds, more lean proteins like low-fat yogurt and cottage cheese, chicken, fish, lean red meats, more vegetables and fruits. After only two weeks, Terri dropped 5 1/2 lbs. She also reported that the mood swings she had suffered, afternoon sleepiness, and uncontrollable hunger pangs had all disappeared. The mental cloudiness that she had experienced chronically for years had lifted. What happened was that the load of sugar from wheat products, followed by an insulin surge then a precipitous drop in sugar, and finally fogginess, irritability, and cravings for food all disappeared. With it, the entire panel of downstream phenomena (small LDL, CRP, etc.) all faded. Though she started out intending to complete a four week trial, I believe that, having seen the light, she will continue to be wheat-free, or nearly so, for a lifetime. The battle for natural hormones 18. April 2007 William Davis (0) The battle for preservation of availability of compounded natural hormones goes on. It started with pharmaceutical manufacturer, Wyeth, who petitioned the FDA to disallow the mixing of pharmaceuticals, especially natural human hormones, by specially trained pharmacists at what are called "compounding pharmacies." These are pharmacies that have special equipment and where trained pharmacists can mix up specific preparations for dispensing. These are available by prescription.For instance, I have been prescribing natural human testosterone and progesterone for nearly 10 years. I have found service to be excellent, with lots of learning materials provided to patients by the pharmacy. The pharmacists I've spoken to have been courteous and knowledgeable. Compounded hormones are also shockingly less expensive. While a testosterone patch from a pharmaceutical company costs around $4.00 per day, the same quantity of testosterone cream formulated by a compouding pharmacy costs around $0.50 per day--87.5% less.Wyeth hides behind a smoke screen of concern over quality. But the price differences tells the entire story: they want to eliminate the inexpensive competition and hold us all hostage to the far more expensive, often inferior products that they produce. They'd sooner force a woman to use horse-derived Premarin than to allow her access to human estrogens and progesterone. To me, this is an outrageous affront to our freedom of choice, both as consumers as well as a physician. If you feel as strongly as I do about opposing the unfair and bullying ways of Wyeth Pharmaceuticals and the FDA, the P2C2 association of compounding pharmacists makes writing a letter to your Senator easy by going to http://iacprx.convio.net/site/PageServer?pagename=P2C2Just enter your info and personalize the comments, and the e-mails will be generated for you. Lipitor and memory 17. April 2007 William Davis (2) At first, I was skeptical. A book from a nutty author and physician named Duane Graveline kept on coming up in conversations with patients. His book, Lipitor: Thief of Memory , details his personal experience with dramatic changes in memory and thought while taking Lipitor. Now this is a drug that I've seen used thousands of times. But I've now seen about a dozen people who have had distinct struggles with memory and clarity of thinking while taking Lipitor. Most took doses of 40 mg per day or more, though an occasional person takes as little as 10 mg. The association seems to be undeniable, since it improves after two weeks off the drug, recurs when resumed. Just today, I saw two people where this effect may be an issue. Curiously, I've not seen it with any other statin agent. Unfortunately, uncovering any scientific data on the issue is a hopeless quest. Either it's very uncommon or, worse, the data has been suppressed. Any way, I believe that Dr. Graveline was right: Lipitor, in a small number of people, does indeed seem to exert real detrimental effects on the mind.If you take Lipitor, should you stop it in fear of long-term effects on your mental capacity? I think it's premature to toss the drug out based on this relatively uncommon relationship. This particular effect is likely to be idiosyncratic, i.e., peculiar to an occasional person but does not seem to apply to the majority, probably by some quirk of metabolism or penetrability of the barrier between the blood and nervous system tissue. If, however, you feel that your thinking and memory have deteriorated on the drug, please speak to your doctor. EKG's and heart disease 16. April 2007 William Davis (4) Let's play a game. I'm going to list some lipid patterns and you tell me whether or not the person with these values has heart disease. Patient 1Total cholesterol 150 mg/dlLDL cholesterol 75 mg/dlHDL 50 mg/dlTriglycerides 125 mg/dlPatient 2Total cholesterol 300 mg/dlLDL cholesterol 200 mg/dlHDL cholesterol 35 mg/dlTriglycerides 325Patient 3Total cholesterol 300 mg/dlLDL cholesterol 100 mg/dlHDL cholesterol 25 mg/dlTriglycerides 875 mg/dlLet's say that any one of these profiles is yours. Should you be getting your affairs in order, preparing for your cardiac catastrophe? Should you demand a stress test from your doctor, hoping that it will shed some light on your dilemma? Should you go ahead and go to the all-you-can-eat rib restaurant, content that you will be attending your granddaughger's wedding in 2020 in full health? If you can tell, you're a lot better at this than I am. I provide consultation to other physicians and patients on complex hyperlipidemias in my area. In other words, if someone has a difficulty to manage lipid disorder, the doctor sends the patient to me.Managing these wildly variable values is the easy part. Deciding whether or not heart disease is concealed within the patient . . . well, that's the hard part.Let's take it a step further: Suppose all three profiles also have 50% of all LDL particles as the abnormal small particles. And they all have a lipoprotein(a) level of 50 mg/dl, an abnormally high level.How about now: Can you tell whether any or all of these people have hidden heart disease?What if they are 20 years old? Does that make a difference? What if they are all females over 65 years--how about now?If the only tool you have to divine the presence of hidden heart disease is a lipid panel, or even a lipoprotein panel, then the best you can manage is to hazard a guess based on statistical probability. You also assume that this "snapshot" represents the sorts of values someone has had for their entire lives. You cannot factor in the fact that the first person gained 60 lbs in the last three years since completing menopause. You can't factor in that patient 2 smoked two packs of cigarettes a day for 25 years, but quit 10 years ago.It's also foolhardy to believe that every known cause of heart disease is currently identifiable and revealed by modern-day blood testing. A heart scan is simply a means to quantify the sum-total of risk factors--causes--that have exerted an effect up until the moment of your scan. It will reveal the quantity of coronary atherosclerotic plaque present, regardless of whether you stopped smoking 20 years ago or lost 30 lbs last year. For these reasons, nothing can replace the value of quantifying plaque: not cholesterol, not the Framingham risk calculation, not measures of small LDL or lipoprotein(a), not the presence or absence of symptoms. In 2008, the method of choice for measuring plaque remains a CT heart scan. Perhaps in 10 years it will be some other method. As always, let me remind Heart Scan Blog viewers that I make this point NOT to sell heart scans, which I have no reason whatsoever to do. I say this because we require a tool to track this potentially fatal disease. We require a yardstick for tracking progression or regression. The only tool that suits these purposes in 2008 is a CT heart scan. Who knows what 4. September 2008 William Davis (4) You know that cynical old saying:It’s not what you know, it’s who you know. In other words, knowing the right person provides you strategic advantage in business, social advancement, etc. In health, it was often true. Knowing who the better doctors were, for instance, in your city might provide you with access to better care. Enter the Information Age. You now have access to medical information equal to that of your doctor. You now have access to patient discussions about doctors, their practices, their performance records. There is now a depth and breadth of information on health that was never available before. I’d therefore turn the old saying into the new Health 2.0 version:It’s not who you know, it’s what you know.In health, information now reigns supreme, not knowing somebody else who has the right connections. Positive: Everybody now theoretically has access to an equal amount of information, since you can access information on any topic just as easily as I can. Negative: It puts more of the burden on you. If you screw up in health, perhaps you didn’t try to get the best information hard enough. I love this new development, this emergence of empowerment in health. I call it self-directed health, the individual capacity to exert enormous influence over the quality of your healthcare. This is obviously a work in progress. All the answers and tools for self-directed care, self-empowerment are not yet available, some haven’t even yet been imagined. But they are coming. “Too many false positives” 4. September 2008 William Davis (6) “Do you really think I need a heart scan?” asked Terry. “My doctor said that heart scans show too many false positives. He says that many people end up getting unnecessary heart catheterizations because of them.” At age 56, Terry was becoming increasingly frightened. His father had suffered his first heart attack at age 53, Terry’s paternal uncle had a heart attack at age 56, his paternal grandfather a heart attack at age 50. Is this true? Do heart scans yield too many false positives, meaning abnormal results when there really is no abnormality?No, it is not. What Terry’s doctor is referring to is the fact that, in the decades-long process that leads to heart attack, heart scans have the ability to detect early phases of developing coronary atherosclerotic plaque. Let’s take Terry’s case, for example. Given his family history, it is quite likely that he does indeed have coronary atherosclerotic plaque. Will it be detectable by performing a stress test? Probably not. In fact, Terry jogs and feels well while doing so. While a stress test abnormality that fails to reach conscious perception is possible, it’s fairly unlikely given his exercise routine. Will Terry’s coronary atherosclerotic plaque be detectable by heart catheterization? Very likely. But why perform an invasive hospital procedure just as a screening test? Should a woman wishing to undergo a screening test for breast cancer undergo breast removal? Of course not. Is waiting for symptoms a rational way to approach diagnosis of heart disease? Well, when symptoms appear, it means that coronary blood flow is reduced. Stents and bypass surgery may be indicated. The risk of heart attack and death skyrocket. Sudden death becomes a real possibility. In the 30 or so years required to establish sufficient coronary plaque to permit the appearance of symptoms or the development of an abnormality detectable by stress testing, there were many years when the disease was early--too early to generate symptoms, too early to be detectable by stress testing. That’s when heart scans uncover evidence for silent coronary atherosclerotic plaque.Should we call this a “false positive” just because it doesn’t also correlate with “need” for a catheterization, stent, bypass operation or result in heart attack within the next few weeks? The detection of early plaque is just that: early disease detection. Imagine, for instance, that the breast cancer that will grow into a palpable nodule or mass detectable by mammogram is detectable by a special breast scan 15 years before it becomes a full-blown tumor, metastasizing to other organs. What if effective means to halt that earliest evidence of cancer could put a stop to this devastating disease decades ahead of danger? Is this a “false positive” too?In my view, this is the knuckleheaded thinking of the conventional practitioner: “Don’t bother me until you’re really sick.” Prevention is a practice that has become fashionable only because of the push of the drug industry. Nutrition is an afterthought, a message conceived through consensus of “experts” with suspect motivations and allegiances. So, no, heart scans do not uncover “false positives.” They uncover early disease--true positives--years before it is detectable by standard tests or by the appearance of catastrophe. But that is the whole point: Early detection means getting a head start on prevention.Do heart scans lead to unnecessary heart catheterizations? Yes, sadly they do. But not because heart scans are false positive. It happens because of unscrupulous or ignorant cardiologists who use the information wrongly. In my view, heart scans should NEVER lead directly to heart catheterization in an asymptomatic patient. Heart scans, as helpful as they are, do not modify the standard reasons for performing heart procedures. If a car mechanic is dishonest and fixes a carburetor that didn't need fixing, should we condemn all car mechanics? No, of course not. We only need to develop the means to weed out the bad apples. The same applies to heart scans. Triglycerides divided by five 3. September 2008 William Davis (8) Here's a bit of lipid tedium that might nonetheless help you one day decipher the meaning of shifts in your cholesterol panel. Recall from prior discussions that conventional LDL cholesterol is a calculated value. Contrary to popular opinion, LDL is usually not measured, but calculated from the Friedewald equation:LDL cholesterol = Total cholesterol - HDL cholesterol - triglycerides/5For the sake of simplicity, let's call total cholesterol TC; HDL cholesterol HDL, and triglycerides TG. We've also talked in past how a low HDL makes calculated LDL inaccurate, sometimes wildly so. (See Low HDL makes Dr. Friedewald a liar.)Here's yet another source of inaccuracy of the Friedewald-calculated LDL: any increase in triglycerides.Let's say, for instance, that starting lipid panel shows:TC 170 mg/dlLDL 100 mg/dl HDL 50 mg/dlTG 100 mg/dlYou're advised to follow a standard low-fat, whole grain-rich diet advocated by "official" agencies (the diet I bash as knuckleheaded). Another panel a few months later shows:TC 230 mg/dlLDL 140 mg/dlHDL 50 mg/dlTG 200 mg/dl(Obviously, I've oversimplified the response for the sake of argument. HDL would likely go down, LDL would change more depending on body weight, small LDL tendencies, and other factors. You'd also likely get fat.) Now your doctor declares that your LDL has gone up and you "need" a statin agent. Nonsense, absolute nonsense. What has really happened is that the increased dietary intake of wheat and other "healthy whole-grain foods" has caused triglycerides to skyrocket. LDL increases, in turn, by a factor of TG/5, or 40 mg/dl. Thus, LDL has been inflated by the triglyceride-raising effect of whole grains. This is yet another reason why the standard lipid panel, full of hazards and landmines, needs to be abandoned. But calculated LDL in particular is an exercise in frustration. Though the example used is hypothetical, I've witnessed this effect thousands of times. I've also seen many people placed on statin drugs unnecessarily, due to the appearance of a high LDL cholesterol that really represented increased TG/5, usually induced by an excessive carbohydrate intake, including those commonly misrepresented as healthy such as whole grains. Who reads The Heart Scan Blog? 2. September 2008 William Davis (0) In the Heart Scan Blog, I am often guilty of speaking out loud of my varied thoughts on this crazy thing that we've created called the cardiovascular healthcare machine. But I discuss it in the context of asking "How could this be done better--better outcomes, more patient-friendly, more accessible . . . more do-it-yourself? The last part is the part that throws most people. Do-it-yourself? My colleagues would claim I'm nuts, suggesting that coronary heart disease is something manageable by yourself. In the conventional pathway, after all, coronary disease is that unpredictable, poorly detected by standard tests, condition that then leads to heart catheterization, stents, bypass , and the like. Several factors distinguish the readers of The Heart Scan Blog that surprised me:--Nearly 60% are women--There are a disproportionate number of Asian people. (Can someone explain this to me?) --A great number have graduate degreesI believe this tells me that The Heart Scan Blog appeals to a somewhat more sophisticated audience. This, to some degree, warms my heart, since it means that I've captured the attention of some people who may be more discriminating and thoughtful in their Internet surfing. However, I also lament the fact that these conversations are not achieving the mainstream. After all, << Older posts Newer posts >> Newer posts12...545556575859606162...123124Older posts
More on being wheat-free 21. April 2007 William Davis (5) Reducing or even eliminating the wheat in your diet can dramatically enhance the phenomenon of insulin resistance. Insulin resistance is the evil process that lies behind low HDL, high triglycerides, small LDL particles, and VLDL and IDL. It’s also the process that makes us tired after meals, heightens inflammation that raises your risk of heart disease, stroke, diabetes, and caner. Insulin resistance is the culprit behind the bulge hanging over some 100,000,000 American belts. Show me a person with a protruding abdomen and I’ll show you a bread lover, or some other form of wheat.Why do I pick on wheat so much? Many of you among the more nutrition-minded would point out that wheat is just one group of food items among many other high-glycemic index foods, i.e., foods that yield a vigorous surge in blood sugar (glucose), followed by a sharp decline. Wheat enjoys the high-glycemic index company of corn, rice (white and brown), potatoes, among others. I pick on wheat because, for most Americans, wheat is 90% of the high-glycemic index problem. (I’m assuming you’ve at least eliminated or dramatically reduced highly-processed sweets like candy, cookies, soft drinks, cakes, etc. That’s a no-brainer.) It’s not uncommon to have a wheat-based product with every meal, a wheat-based snack, 7 days a week. But few people have corn products (i.e., corn starch products) three times a day. Or rice three times a day. Wheat has traded places with saturated fat sources as the chief scourge of diet. In 1985, we had dinners of spare ribs, cheeseburgers, French fries, and butter on our mashed potatoes. Hardly anybody eats that like anymore, at least amongst the web-savvy set. Wheat has assumed the previous exalted role as chief scourge as a consequence of the low-fat consciousness of the 80s and 90s. It has since ballooned in importance in diet and, as a result, skyrocketed as a cause of obesity, insulin resistance, and coronary plaque growth.What if you're already slender and have none of the above issues, especially small LDL particles? Then don't sweat the wheat issue. Note: My comments on being wheat-free should not be confused with gluten sensitivity or celiac disease. These are allergies to wheat gluten that, if undiagnosed, wreak havoc on health to extremes. This phenomenon is separate and distinct from the far more prevalent issue I’m discussing.
Can you break the “Rule of 60” 21. April 2007 William Davis (1) In the Track Your Plaque program, we aim for conventional lipid values (LDL cholesterol, HDL cholesterol, and triglycerides) of 60—60—60, i.e., LDL 60 mg/dl, HDL 60 mg/dl or greater, triglycerides 60 mg/dl. Most participants do indeed reach these target values. When I tell this to colleagues, they’re stunned. “You can’t possibly get those numbers in most people.” And I can sympathize with their plight. After all, they are stuck with relatively lame tools: statin drugs, the American Heart Association diet. I’d be surprised if they ever achieved 60—60—60. But can you drop your heart scan score even if you don’t reach the 60—60—60 targets? Yes, you can. The Rule of 60 is only a guideline, a tool that helps more people achieve our goals. The Rule of 60 does not guarantee reversal (drop in heart scan score), nor does not achieving the targets completely destroy your chances. We have had many people drop their scores even if they haven’t reached the targets. On the other hand, we’ve also had people who failed at first, only to see success once they achieved the 60 mg/dl targets. But which one are you? That’s the problem. We possess limited capacity to predict who will or who will not drop their scores from the start. We know that there are factors that stack the odds in your favor (e.g., optimism, lack of Lp(a), ideal weight, vitamin D >50 ng/ml, etc.). We know that there are factors that make it tougher (overweight, Lp(a), pessimistic attitude, underappreciated hypertension, higher heart scan scores, etc.) But at the start, we just don’t know who truly needs to adhere to the Rule of 60. So we suggest that everyone, at least in the beginning, aim to achieve it. I had an exception the other day. Rich did everything by the Track Your Plaque book. However, a starting low HDL of 27 only rose to 37 after one year of effort—way below our 60 mg/dl target. Yet a repeat heart scan showed 23% reduction. Why would Rich be so successful despite a persistently very low HDL? There may be a number of reasons. One explanation could be that conventional measures of HDL fail to distinguish between what HDLs truly work and what do not. Look at ApoA1 Milano; remember this story? The people in the secluded mountain village of Limone-Sul-Garde in northern Italy have HDL cholesterols of 8-15 mg/dl yet do not experience excess vascular atherosclerosis, suggesting that what little HDL they have is super-effective.Yes, large HDL seem to be more healthy and effective than small HDL, but perhaps there’s more to it. However, nobody has a HDL effectiveness test ready for us to use. In the meantime, we continue to suggest that the Track Your Plaque Rule of 60 be considered as a means of making plaque reversal as likely as possible. You and your doctor can always adjust in future, depending on your heart scan score results.
Non-profit hospitals 21. April 2007 William Davis (1) Hospitals hide behind a veil of non-profit. Ostensibly operating for the public good, most hospitals enjoy all the business advantages of non-profit status. This means that any profits that flow to the bottom line at the end of the year are not subject to tax. Hospitals point out that profit margins are modest, often ranging from 2-6%. What they don’t tell you is that, regardless of non-profit status, lots of money can be paid out along the way. A hospital CEO who pays himself $4 million dollars a year can work for this non-profit organization. He can also direct the hospital in business expansion: pharmacies, extended-care facilities, medicine and medical supply distributorships. Your friendly hospital CEO, as well as his many administrators, can hold positions in hospital subsidiaries, complete with salaries and perks. Yes, most hospitals are officially non-profit. But that’s a designation for tax purposes. It does not mean that hospitals are non-lucrative. I believe that it’s time for hospitals to drop the façade of “Saint” in their names or other religious names—Methodist, Baptist, Jewish, All Saints’. More accurate would be something like “ABC Medical Enterprises, Inc.” That way, the public would be quicker to recognize that they are dealing with a business run by people eager to make more money.
Wheat five times a day 20. April 2007 William Davis (3) Terri couldn't understand why her weight wouldn't drop. At 5'3", 208 lbs., she had the typical mid-abdominal excess weight that went with small LDL, low HDL, high triglycerides, a post-prandial (after-eating) fat clearance disorder, high blood sugar, increased c-reactive protein, and high blood pressure. She claimed to have tried every diet and all had failed. So we reviewed her current "strict" diet:"For breakfast, I had Shredded Wheat cereal in skim milk. No sugar, just some cinnamon and a little Splenda. For lunch, I had low-fat turkey breast sandwich--no mayonnaise--on whole wheat bread. For snacks, I had pretzels between breakfast and lunch, and a whole wheat bagel with nothing on it before dinner. For dinner, we had whole wheat pasta with tomato sauce and a salad. While we watched TV, I did have a couple of whole wheat crackers. "I don't get it. I didn't butter anything, I didn't sneak any sweets, cakes, I didn't even touch cookies. And I love cookies!"Did you see the pattern? I pointed out to Terri that what she was doing, in effect, was eating sugar 5 or more times a day. Many of her meals, of course, contained no sugar. All were low fat. But the excessive wheat content yielded quick conversion to sugar--glucose--immediately after ingestion. Repeated surges of blood sugar like this trigger the excessive insulin response that yields low HDL, higher triglycerides, small LDL, etc., everything that Terri had. Terri was skeptical when I suggested that she attempt an "experiment": Try a four week period of being entirely wheat-free. This meant more raw nuts and seeds, more lean proteins like low-fat yogurt and cottage cheese, chicken, fish, lean red meats, more vegetables and fruits. After only two weeks, Terri dropped 5 1/2 lbs. She also reported that the mood swings she had suffered, afternoon sleepiness, and uncontrollable hunger pangs had all disappeared. The mental cloudiness that she had experienced chronically for years had lifted. What happened was that the load of sugar from wheat products, followed by an insulin surge then a precipitous drop in sugar, and finally fogginess, irritability, and cravings for food all disappeared. With it, the entire panel of downstream phenomena (small LDL, CRP, etc.) all faded. Though she started out intending to complete a four week trial, I believe that, having seen the light, she will continue to be wheat-free, or nearly so, for a lifetime.
The battle for natural hormones 18. April 2007 William Davis (0) The battle for preservation of availability of compounded natural hormones goes on. It started with pharmaceutical manufacturer, Wyeth, who petitioned the FDA to disallow the mixing of pharmaceuticals, especially natural human hormones, by specially trained pharmacists at what are called "compounding pharmacies." These are pharmacies that have special equipment and where trained pharmacists can mix up specific preparations for dispensing. These are available by prescription.For instance, I have been prescribing natural human testosterone and progesterone for nearly 10 years. I have found service to be excellent, with lots of learning materials provided to patients by the pharmacy. The pharmacists I've spoken to have been courteous and knowledgeable. Compounded hormones are also shockingly less expensive. While a testosterone patch from a pharmaceutical company costs around $4.00 per day, the same quantity of testosterone cream formulated by a compouding pharmacy costs around $0.50 per day--87.5% less.Wyeth hides behind a smoke screen of concern over quality. But the price differences tells the entire story: they want to eliminate the inexpensive competition and hold us all hostage to the far more expensive, often inferior products that they produce. They'd sooner force a woman to use horse-derived Premarin than to allow her access to human estrogens and progesterone. To me, this is an outrageous affront to our freedom of choice, both as consumers as well as a physician. If you feel as strongly as I do about opposing the unfair and bullying ways of Wyeth Pharmaceuticals and the FDA, the P2C2 association of compounding pharmacists makes writing a letter to your Senator easy by going to http://iacprx.convio.net/site/PageServer?pagename=P2C2Just enter your info and personalize the comments, and the e-mails will be generated for you.
Lipitor and memory 17. April 2007 William Davis (2) At first, I was skeptical. A book from a nutty author and physician named Duane Graveline kept on coming up in conversations with patients. His book, Lipitor: Thief of Memory , details his personal experience with dramatic changes in memory and thought while taking Lipitor. Now this is a drug that I've seen used thousands of times. But I've now seen about a dozen people who have had distinct struggles with memory and clarity of thinking while taking Lipitor. Most took doses of 40 mg per day or more, though an occasional person takes as little as 10 mg. The association seems to be undeniable, since it improves after two weeks off the drug, recurs when resumed. Just today, I saw two people where this effect may be an issue. Curiously, I've not seen it with any other statin agent. Unfortunately, uncovering any scientific data on the issue is a hopeless quest. Either it's very uncommon or, worse, the data has been suppressed. Any way, I believe that Dr. Graveline was right: Lipitor, in a small number of people, does indeed seem to exert real detrimental effects on the mind.If you take Lipitor, should you stop it in fear of long-term effects on your mental capacity? I think it's premature to toss the drug out based on this relatively uncommon relationship. This particular effect is likely to be idiosyncratic, i.e., peculiar to an occasional person but does not seem to apply to the majority, probably by some quirk of metabolism or penetrability of the barrier between the blood and nervous system tissue. If, however, you feel that your thinking and memory have deteriorated on the drug, please speak to your doctor.
EKG's and heart disease 16. April 2007 William Davis (4) Let's play a game. I'm going to list some lipid patterns and you tell me whether or not the person with these values has heart disease. Patient 1Total cholesterol 150 mg/dlLDL cholesterol 75 mg/dlHDL 50 mg/dlTriglycerides 125 mg/dlPatient 2Total cholesterol 300 mg/dlLDL cholesterol 200 mg/dlHDL cholesterol 35 mg/dlTriglycerides 325Patient 3Total cholesterol 300 mg/dlLDL cholesterol 100 mg/dlHDL cholesterol 25 mg/dlTriglycerides 875 mg/dlLet's say that any one of these profiles is yours. Should you be getting your affairs in order, preparing for your cardiac catastrophe? Should you demand a stress test from your doctor, hoping that it will shed some light on your dilemma? Should you go ahead and go to the all-you-can-eat rib restaurant, content that you will be attending your granddaughger's wedding in 2020 in full health? If you can tell, you're a lot better at this than I am. I provide consultation to other physicians and patients on complex hyperlipidemias in my area. In other words, if someone has a difficulty to manage lipid disorder, the doctor sends the patient to me.Managing these wildly variable values is the easy part. Deciding whether or not heart disease is concealed within the patient . . . well, that's the hard part.Let's take it a step further: Suppose all three profiles also have 50% of all LDL particles as the abnormal small particles. And they all have a lipoprotein(a) level of 50 mg/dl, an abnormally high level.How about now: Can you tell whether any or all of these people have hidden heart disease?What if they are 20 years old? Does that make a difference? What if they are all females over 65 years--how about now?If the only tool you have to divine the presence of hidden heart disease is a lipid panel, or even a lipoprotein panel, then the best you can manage is to hazard a guess based on statistical probability. You also assume that this "snapshot" represents the sorts of values someone has had for their entire lives. You cannot factor in the fact that the first person gained 60 lbs in the last three years since completing menopause. You can't factor in that patient 2 smoked two packs of cigarettes a day for 25 years, but quit 10 years ago.It's also foolhardy to believe that every known cause of heart disease is currently identifiable and revealed by modern-day blood testing. A heart scan is simply a means to quantify the sum-total of risk factors--causes--that have exerted an effect up until the moment of your scan. It will reveal the quantity of coronary atherosclerotic plaque present, regardless of whether you stopped smoking 20 years ago or lost 30 lbs last year. For these reasons, nothing can replace the value of quantifying plaque: not cholesterol, not the Framingham risk calculation, not measures of small LDL or lipoprotein(a), not the presence or absence of symptoms. In 2008, the method of choice for measuring plaque remains a CT heart scan. Perhaps in 10 years it will be some other method. As always, let me remind Heart Scan Blog viewers that I make this point NOT to sell heart scans, which I have no reason whatsoever to do. I say this because we require a tool to track this potentially fatal disease. We require a yardstick for tracking progression or regression. The only tool that suits these purposes in 2008 is a CT heart scan.
Who knows what 4. September 2008 William Davis (4) You know that cynical old saying:It’s not what you know, it’s who you know. In other words, knowing the right person provides you strategic advantage in business, social advancement, etc. In health, it was often true. Knowing who the better doctors were, for instance, in your city might provide you with access to better care. Enter the Information Age. You now have access to medical information equal to that of your doctor. You now have access to patient discussions about doctors, their practices, their performance records. There is now a depth and breadth of information on health that was never available before. I’d therefore turn the old saying into the new Health 2.0 version:It’s not who you know, it’s what you know.In health, information now reigns supreme, not knowing somebody else who has the right connections. Positive: Everybody now theoretically has access to an equal amount of information, since you can access information on any topic just as easily as I can. Negative: It puts more of the burden on you. If you screw up in health, perhaps you didn’t try to get the best information hard enough. I love this new development, this emergence of empowerment in health. I call it self-directed health, the individual capacity to exert enormous influence over the quality of your healthcare. This is obviously a work in progress. All the answers and tools for self-directed care, self-empowerment are not yet available, some haven’t even yet been imagined. But they are coming.
“Too many false positives” 4. September 2008 William Davis (6) “Do you really think I need a heart scan?” asked Terry. “My doctor said that heart scans show too many false positives. He says that many people end up getting unnecessary heart catheterizations because of them.” At age 56, Terry was becoming increasingly frightened. His father had suffered his first heart attack at age 53, Terry’s paternal uncle had a heart attack at age 56, his paternal grandfather a heart attack at age 50. Is this true? Do heart scans yield too many false positives, meaning abnormal results when there really is no abnormality?No, it is not. What Terry’s doctor is referring to is the fact that, in the decades-long process that leads to heart attack, heart scans have the ability to detect early phases of developing coronary atherosclerotic plaque. Let’s take Terry’s case, for example. Given his family history, it is quite likely that he does indeed have coronary atherosclerotic plaque. Will it be detectable by performing a stress test? Probably not. In fact, Terry jogs and feels well while doing so. While a stress test abnormality that fails to reach conscious perception is possible, it’s fairly unlikely given his exercise routine. Will Terry’s coronary atherosclerotic plaque be detectable by heart catheterization? Very likely. But why perform an invasive hospital procedure just as a screening test? Should a woman wishing to undergo a screening test for breast cancer undergo breast removal? Of course not. Is waiting for symptoms a rational way to approach diagnosis of heart disease? Well, when symptoms appear, it means that coronary blood flow is reduced. Stents and bypass surgery may be indicated. The risk of heart attack and death skyrocket. Sudden death becomes a real possibility. In the 30 or so years required to establish sufficient coronary plaque to permit the appearance of symptoms or the development of an abnormality detectable by stress testing, there were many years when the disease was early--too early to generate symptoms, too early to be detectable by stress testing. That’s when heart scans uncover evidence for silent coronary atherosclerotic plaque.Should we call this a “false positive” just because it doesn’t also correlate with “need” for a catheterization, stent, bypass operation or result in heart attack within the next few weeks? The detection of early plaque is just that: early disease detection. Imagine, for instance, that the breast cancer that will grow into a palpable nodule or mass detectable by mammogram is detectable by a special breast scan 15 years before it becomes a full-blown tumor, metastasizing to other organs. What if effective means to halt that earliest evidence of cancer could put a stop to this devastating disease decades ahead of danger? Is this a “false positive” too?In my view, this is the knuckleheaded thinking of the conventional practitioner: “Don’t bother me until you’re really sick.” Prevention is a practice that has become fashionable only because of the push of the drug industry. Nutrition is an afterthought, a message conceived through consensus of “experts” with suspect motivations and allegiances. So, no, heart scans do not uncover “false positives.” They uncover early disease--true positives--years before it is detectable by standard tests or by the appearance of catastrophe. But that is the whole point: Early detection means getting a head start on prevention.Do heart scans lead to unnecessary heart catheterizations? Yes, sadly they do. But not because heart scans are false positive. It happens because of unscrupulous or ignorant cardiologists who use the information wrongly. In my view, heart scans should NEVER lead directly to heart catheterization in an asymptomatic patient. Heart scans, as helpful as they are, do not modify the standard reasons for performing heart procedures. If a car mechanic is dishonest and fixes a carburetor that didn't need fixing, should we condemn all car mechanics? No, of course not. We only need to develop the means to weed out the bad apples. The same applies to heart scans.
Triglycerides divided by five 3. September 2008 William Davis (8) Here's a bit of lipid tedium that might nonetheless help you one day decipher the meaning of shifts in your cholesterol panel. Recall from prior discussions that conventional LDL cholesterol is a calculated value. Contrary to popular opinion, LDL is usually not measured, but calculated from the Friedewald equation:LDL cholesterol = Total cholesterol - HDL cholesterol - triglycerides/5For the sake of simplicity, let's call total cholesterol TC; HDL cholesterol HDL, and triglycerides TG. We've also talked in past how a low HDL makes calculated LDL inaccurate, sometimes wildly so. (See Low HDL makes Dr. Friedewald a liar.)Here's yet another source of inaccuracy of the Friedewald-calculated LDL: any increase in triglycerides.Let's say, for instance, that starting lipid panel shows:TC 170 mg/dlLDL 100 mg/dl HDL 50 mg/dlTG 100 mg/dlYou're advised to follow a standard low-fat, whole grain-rich diet advocated by "official" agencies (the diet I bash as knuckleheaded). Another panel a few months later shows:TC 230 mg/dlLDL 140 mg/dlHDL 50 mg/dlTG 200 mg/dl(Obviously, I've oversimplified the response for the sake of argument. HDL would likely go down, LDL would change more depending on body weight, small LDL tendencies, and other factors. You'd also likely get fat.) Now your doctor declares that your LDL has gone up and you "need" a statin agent. Nonsense, absolute nonsense. What has really happened is that the increased dietary intake of wheat and other "healthy whole-grain foods" has caused triglycerides to skyrocket. LDL increases, in turn, by a factor of TG/5, or 40 mg/dl. Thus, LDL has been inflated by the triglyceride-raising effect of whole grains. This is yet another reason why the standard lipid panel, full of hazards and landmines, needs to be abandoned. But calculated LDL in particular is an exercise in frustration. Though the example used is hypothetical, I've witnessed this effect thousands of times. I've also seen many people placed on statin drugs unnecessarily, due to the appearance of a high LDL cholesterol that really represented increased TG/5, usually induced by an excessive carbohydrate intake, including those commonly misrepresented as healthy such as whole grains.
Who reads The Heart Scan Blog? 2. September 2008 William Davis (0) In the Heart Scan Blog, I am often guilty of speaking out loud of my varied thoughts on this crazy thing that we've created called the cardiovascular healthcare machine. But I discuss it in the context of asking "How could this be done better--better outcomes, more patient-friendly, more accessible . . . more do-it-yourself? The last part is the part that throws most people. Do-it-yourself? My colleagues would claim I'm nuts, suggesting that coronary heart disease is something manageable by yourself. In the conventional pathway, after all, coronary disease is that unpredictable, poorly detected by standard tests, condition that then leads to heart catheterization, stents, bypass , and the like. Several factors distinguish the readers of The Heart Scan Blog that surprised me:--Nearly 60% are women--There are a disproportionate number of Asian people. (Can someone explain this to me?) --A great number have graduate degreesI believe this tells me that The Heart Scan Blog appeals to a somewhat more sophisticated audience. This, to some degree, warms my heart, since it means that I've captured the attention of some people who may be more discriminating and thoughtful in their Internet surfing. However, I also lament the fact that these conversations are not achieving the mainstream. After all,