Showing posts with label test - carotid. Show all posts
Showing posts with label test - carotid. Show all posts

Monday, 8 April 2013

Jimmy Moore - background to 6-Month Lipid & Nutritional Ketosis N=1 Experiment

6-Month Lipid Panel Update On My Nutritional Ketosis N=1 Experiment « Jimmy Moore's Livin' La Vida Low Carb Blog

Ever since I began my n=1 experiment of the concept of “nutritional ketosis” in May 2012 that has resulted in a 50+ pound weight loss so far while consuming lots of healthy high-fat foods to raise my level of blood ketones, people have been asking me about what’s been happening with my lipid panel.

But as we heard from Dr. Jonny Bowden in Episode 632 of “The Livin’ La Vida Low-Carb Show” podcast this week discussing his brand new book on this subject entitled The Great Cholesterol Myth: Why Lowering Your Cholesterol Won’t Prevent Heart Disease and the Statin-Free Plan That Will, is this something we really need to be concerned about? Whether the answer to that question is yes or no, what do the numbers really mean anyway?

And are they different for people who eat a high-fat, moderate protein, low-carb diet to produce an appropriate level of beta-hydroxybuterate (blood ketones) that Dr. Stephen Phinney and Dr. Jeff Volek discuss as optimal for health and performance in their bestselling 2012 book The Art and Science of Low Carbohydrate Performance?

I’m currently on a personal quest to find the answers to these questions and more by speaking directly with as many of my expert friends in the medical, nutrition and research fields over the next six months researching and writing my book all about this topic tentatively titled A Patient’s Guide to Understanding Your Cholesterol Test Results (releasing Fall 2013). People are so confused about what to believe about their cholesterol test results that this book is way overdue. Arming people with solid information will help them make a more informed decision about what to do about the current state of their health rather than blindly following some dubious drug therapy promoted by their doctor to treat risk factor numbers. It’s high time we start treating actual DISEASE rather than risk factors anyway.

But every single week, I receive at least a dozen e-mails from people all over the world who are concerned about their cholesterol test results. Even for those people who have gotten away from the traditional lipid testing that only shows LDL-C, HDL and total cholesterol to the more advanced particle size testing from places like the Raleigh, NC-based LipoScience who created the NMR Lipoprofile test, there is pause for concern because their doctor tells them they need to be taking a statin drug lest they fall victim to a heart attack or worse. I’ve never understood the scaremongering that goes on regarding “high cholesterol” and the knee jerk reaction that taking a pharmaceutical drug such as a statin will somehow protect people from ever having a heart attack. A timely example of this is the late television newscaster Tim Russert who had “perfect” cholesterol numbers while ostensibly on a statin drug and yet tragically died of a heart attack in June 2008. Watch Justin Smith’s $TATIN NATION documentary for more information about just how insidious this push for a risky drug therapy to treat a non-existent disease has become.

I’ve been a big fan of having my cholesterol tested using the NMR Lipoprofile test for many years because they are the only truly accurate cholesterol particle testing company in the world. According to lipidologist Dr. Thomas Dayspring who addressed cholesterol testing in Episode 29 of the “Ask The Low-Carb Experts” podcast recently, this cholesterol test from LipoScience is the only one that he’s aware of that will directly measure your LDL-P (the total number of LDL particles in the blood) and Small LDL-P (the dangerous Pattern B LDL cholesterol that penetrates the arterial wall and leads to atheroschlerosis). Knowing where your numbers stand is a critical starting point for anyone wanting to optimize their health. Your doctor can actually run this test if you ask for it (although some will think it’s unnecessary or a “fad”) or you can use one of those online health testing outfits like Private MD Labs that work with your local LabCorp offices to pull the blood without a doctor being involved like I did last week to get my latest lipid panel update.

In mid-November before leaving on my trip to Australia for a three week, 5-city “Low Carb Down Under” speaking tour, I’ll be sharing a 6-month update about my nutritional ketosis n=1 experiment (read all of my updates for Day 1-30, Day 31-60, Day 61-90, Day 91-120 and Day 121-150). I’ve got some really interesting information to share with you regarding an experience that has happened to me during this 30-day cycle that could help those of you who might be wondering why your blood ketones aren’t where you want them to be. I’m amazed by how much I’m STILL learning about all this and look forward to passing along what I’ve discovered with you in the months to come. My target date for publishing my Day 151-180 results is November 11, 2012 or sooner. Stay tuned!

There’s still a lot of controversy about whether the LDL-P number (and the parallel marker of Apo B) is as or more important than the LDL particle size. Dr. Dayspring is adamant that it’s all about the LDL-P number and that the size isn’t relevant when it comes to heart health. He explained his reasoning for this position in Episode 585 of “The Livin’ La Vida Low-Carb Show” podcast. And in his popular “The Straight Dope On Cholesterol” blog post series, Dr. Peter Attia notes that the number of LDL particles and not just their size determine the atherogenic risk.

But a Gilbert, AZ-based family physician who specializes in heart attack prevention named Dr. Rocky Patel (listen to him in Episode 62 of the “Low-Carb Conversations” podcast) noted in his September 2012 blog post entitled Does LDL-P Matter? that his personal LDL-P score of “over 3000″ was initially “horrifying” until he had a Carotid Intima Media Thickness (CIMT) test showing his vascular health was equivalent to that of a 16-year old! Additionally, his low-carb diet has helped him lose weight, feel energized and brought his inflammation (CRP) levels to “not detectable.” Cool! Dr. Patel concluded his blog post by stating a truth that should be the basis of all healthcare decisions: “We must always remember to treat the patient/disease and not the number.”

With that in mind, let’s talk about my various health numbers. As you know, I’ve been actively losing weight and body fat (we’ll know for sure I’m losing body fat when I get the comparison results of my DEXA scan coming hopefully before I leave for Australia) on my nutritional ketosis plan and that has not stopped nor do I expect it to in the coming months. But before I even started on this plan in May 2012, I had a Berkeley HeartLab panel of tests run in February 2012 to see how my low-carb diet was working for me. Despite weighing over 300 pounds at the time, some key health markers were pretty remarkable:



  • C-Reactive Protein (CRP) – 0.7 (less than 1.0 is “low risk”)



  • HDL-C – 78 (over 50 is considered stellar)



  • Triglycerides – 89 (under 100 is excellent)


  • I’ve said it many times before, but reducing your carbohydrate intake, moderating your protein consumption and consuming higher levels of healthy fats that include saturated fat are the best ways to not just lose weight but making critical positive changes for the better in your lipid panel happen.

    Laura Dolson discusses Three Reasons Not To Worry About LDL Cholesterol On A Low-Carb Diet and notes that HDL over 50 and triglycerides under 100 will almost always mean your LDL size is the Pattern A (large, buoyant kind) that you want. Dr. Jeff Volek has found in his research patients a greatly improved triglyceride/HDL ratio eating a low-carb diet and that this is a much better marker for heart health than LDL or total cholesterol. As far as I know, the advanced particle size lipid testing has not been used by Dr. Volek, Dr. Eric Westman at Duke or others looking at low-carb diets in their research. I hope that they do add this extra bit of data for the benefit of those who may see some crazy numbers like Dr. Patel and I (and I’m sure many other low-carbers) are seeing.

    So what about my latest test results from my fasting blood draw on October 25, 2012? Some of the numbers shouldn’t be a surprise knowing that I’m eating a very strict high-fat, moderated protein, low-carbohydrate diet with a fat/protein/carbohydrate ratio of 85/12/3:



  • HDL-C is 65 (down slightly from Berkley but still over 50)



  • Triglycerides are 46 (virtually cut in half since Berkeley)



  • Small LDL-P is 221 (just 6% of my total LDL-P number)



  • VLDL was “too low” to measure exact number (A GOOD THING!)



  • LP-IR Score was 11 (means I’m no longer insulin resistant)As amazing as all of these numbers were, the ones people will likely be most interested in are the “high” ones. Let’s take a look:



  • Total cholesterol is 359 (not a relevant number at all)



  • LDL-C is 285 (again, this tells you nothing really)



  • LDL-P is 3451 (ideally it’s supposed to be below 1000)



  • Apo B is 238 (parallel to LDL-P and should be under 80)


  • What I want to know is how I can simultaneously have outstanding insulin sensitivity, an A1c score of 4.5, average blood sugars around 81, a heart scan score of zero, undetectable inflammation, 94% of my LDL particles are the large, fluffy kind (Pattern A), a microscopic triglyceride/HDL ratio of 0.7 and active weight/fat loss AND a greater susceptibility for atherosclerosis because of an extremely high LDL-P and Apo B. The answer is out there and I’m bound and determined to uncover it for my book next year.

    But this is more than about some book I’m writing…this is my life. I wholeheartedly believe my healthy high-fat, moderate protein, low-carb diet is vastly improving my health in ways that no other eating plan could even possibly touch. And yet the jury is still out on whether or not there should be concern about the direction my numbers have been going. I did an Excel spreadsheet showing how although my total cholesterol, LDL-C and HDL have all remained relatively constant for the past 4+ years, LDL-P has gone precipitously higher and higher (will it ever stop going up and what’s making that number continue to rise?):


    Interestingly, before I started on the Atkins diet in January 2004, my highest total cholesterol was only about 230. Of course, my doctor put me on both Lipitor and Crestor to lower that number and it did get down to 130 at some point (don’t know what the breakdown was of HDL and LDL nor do I know what my triglycerides or LDL-P were at the time either). But people have claimed I have familial hypercholesterolemia because my total cholesterol is now over 300. But I disagree.

    Something has happened since I began eating high-fat, low-carb and I can’t help but wonder if there is a purpose for that extra cholesterol in the body since we know there are benefits to higher levels of cholesterol in the body. The jury is certainly still out on this.

    If there’s one thing you know about me, it’s this: I won’t stop seeking the truth about this and sharing with you what I find. Dr. Dayspring has already invited me to visit him at the Richmond, VA-based Foundation For Health Improvement And Technology to see why despite all my incredible lipid numbers the LDL-P and Apo B seem to be out of whack. It will be interesting to see if these numbers are found to be less important for people on low-carb diets than those eating other kinds of diets. Now that’s some research that could help a whole lot of people. In preparation for my book, I’ll also be interviewing various health professionals from cardiologists to practitioners and everyone in between to get to the heart of what matters most. I’m anxious to get going on this project and can’t wait to see where my journey takes me on this.

    Got any comments about my latest lipid numbers? I’d love to hear your thoughts in the comments section below. Feel free to share any knowledge and experience you may have on this subject.

    Saturday, 6 April 2013

    CIMT - Carotid Intima Media Thickness Testing | CardioRisk

    CIMT - Carotid Intima Media Thickness Testing | CardioRisk

    Many patients suffering the early and intermediate stages of atherosclerosis show no outward signs or symptoms of the disease.

    As many as 50% of those who died from CAD had no prior signs or symptoms.

    As many as 50% of those who died from CAD had cholesterol levels that met current guidelines.

    What if . . .

    • You could look inside your patients' arteries to see if they were covered in plaque?
    • You could not only see the atherosclerotic burden, but could also predict your patient's risk of experiencing a heart attack, stroke, or other ischemic event.
    • You could measure the degree of inflammation in the arterial wall or the size of the plaque that may contribute to the most common cause of death in America--heart disease?

    You can!

    Measuring the thickness of the intima and media layers of the carotid artery wall (carotid intima-media thickness, or CIMT) is one way to assess the cardiovascular health of your patients. This non-invasive procedure gives you another tool in your toolbox to further solve the diagnostic puzzle and help you you accurately assess disease presence, risk of events, and progression of the disease before your patient presents with acute symptoms.


    IMT Solves a Very Real Problem

    The Framingham algorithm is a great tool for assessing patients at high and low risk for CAD. Establishing a treatment protocol for these patients is also relatively straightforward. However, what do we do for those patients who are at intermediate risk for CAD and who are asymptomatic?

    The standard of care says we should treat the symptoms of disease. Unfortunately, this may be grossly inadequate because many of these patients are already full of soft plaque (i.e. significant atherosclerosis), and have IMT measurements that place them at very high risk for an ischemic event.
    Though many physicians will be uneasy with the uncertainty of the Framingham risk assessment in this medium risk group of patients, they will follow the standard of care and avoid aggressive pharmacological treatment in favor of maintaining a vigilant eye on these patients instead. Others will send these patients on for additional testing such as MRA, Stress Echo, or EBCT. Because very few of these patients will have more than 60% stenosis, they will pass the Stress Echo and MRA.

    EBCT is a great tool for assessing calcified plaque, but is inadequate at identifying the soft and more vulnerable plaque. Many of these patients still have significant amounts of soft plaque lining their arteries. Soft plaque (or echoluscent plaque) of any size has been shown to increase the odds ratio of an ischemic event nearly 2.5 times higher than a person who has an old MI. (Honda, et al J AM Coll Cardiol 2004; 43:1177-84)


    Measuring CIMT by Ultrasound

    CIMT measurements using B-mode (brightness mode) ultrasound have been performed since the mid-1980s. Using structural B-mode ultrasound, a trained sonographer can easily and non-invasively acquire images of the carotid artery wall for analysis, typically the region immediately proximal to the bifurcation. Upon examination via ultrasound, the adventitia shows up as a bright, white layer and the blood-filled lumen shows up as a black area, allowing the clinician to isolate the area of interest in between . . . the IMT. CardioRisk's sonographers are all trained to use our patented protocol using patented software. A CardioRisk trained and experienced sonographer can complete the procedure in just under ten minutes of your patient's time.


    How It Works:

    CardioRisk is a service company. No investment is required to offer this test to your patients. There is no need to purchase additional equipment or train additional staff.

    • To get started, simply call us at our toll-free number: 1-888-724-7484.
    • Set a date for scanning at your office (usually 3-5 weeks in advance to give you time to gather enough patients).
    • Begin speaking to at-risk patients about the procedure and suggest they come in for the test. Provide each patient with the IMT patient materials.
    • CardioRisk will call to confirm the number of patients you have scheduled (one week and one day before your scheduled day).
    • Physicians may want to participate in our free doctor-to-doctor web conference for practical clinical and interpretation information.
    • A trained CardioRisk sonographer will arrive at your office 15 minutes before the scheduled time. Assign them to an appropriate exam room where the lights can be dimmed (in order to better see the ultrasound screen).
    • You will receive two copies of each patient's reports (one for the physician and one for the patient) within 5 business days of the scan. Soft copies (PDF format) are also available. The CardioRisk interpretation guide will come with each batch of reports.
    • Physicians normally meet with each patient again to review results.