← The Peter Attia Drive

#07 - Deep Dive: Lp(a) — what every doctor, and the 10-20% of the population at risk, needs to know

Jul 30, 2018 1h 16m 21 insights
<p>Pronounced, el-pee-little-a, this lipoprotein is simply described as a low density lipoprotein (LDL) that has an apoprotein "a" attached to it...but Lp(a) goes far beyond its description in terms of its structure, function, and the role that it plays in cardiovascular health and disease. Affecting about 1-in-5 people, and not on the radar of many doctors, this is a deep dive into a very important subject for people to understand.</p> <ul> <li>A quick primer on lipoproteins [7:30];</li> <li>Intro to Lp(a) [11:00];</li> <li>Lab tests for Lp(a) and reference ranges [20:00];</li> <li>The physiologic functions of Lp(a) [31:00];</li> <li>The problems associated with high Lp(a) [34:15];</li> <li>Lipid-lowering therapies of Lp(a) [44:45];</li> <li>Lp(a) modification through lifestyle intervention [1:00:45];</li> <li>High LDL-P on a ketogenic/low-carb-high-fat diet [1:05:30]; and</li> <li>More</li> </ul> <p> <span> Learn more at <a href="http://www.peterattiamd.com/"><span><u>www.PeterAttiaMD.com</u></span></a></span></p> <p> <span>Connect with Peter on <a href=""> <span> <u>Facebook</u></span></a> | <a href=""> <span> <u>Twitter</u></span></a> | <a href=""> <span> <u>Instagram</u></span></a>.</span></p>
Actionable Insights

1. Patients: Demand LP(a) Test

As a patient, demand to know your LP(a) levels, especially if you have a family history of atherosclerotic disease, as this is a non-negotiable step in understanding your risk.

2. Track LDL Particle Number (APO-B)

Prioritize knowing your LDL particle number (LDL-P) or APO-B, as these are more accurate predictors of atherosclerotic risk than traditional LDL cholesterol levels.

3. Best LP(a) Risk Measurement

For the most accurate assessment of LP(a) risk, request an LP(a) particle number test, or as a proxy, measure the amount of oxidized phospholipid normalized for APOB.

4. Lower LDLP with High LP(a)

If you have elevated LP(a), aim for an LDL particle number (LDLP) at the 10th percentile or lower, which often requires statin therapy, in addition to considering other risk factors.

5. Statins for APOB, Not LP(a)

If you have elevated LP(a), you should likely take a statin, but understand its purpose is to control APOB and lower LDL particle number, not to directly lower LP(a).

6. Screen Aortic Stenosis with High LP(a)

If you have elevated LP(a), especially at a young age, proactively screen for aortic stenosis using an echocardiogram (echo) at minimum, or preferably a cardiac MRI for more accurate assessment of the aortic valve.

7. DVT Prevention for High LP(a)

If you have elevated LP(a) and are taking long flights, discuss deep vein thrombosis (DVT) prophylaxis with your doctor, which may include pharmacologic agents or over-the-counter options like “flight tabs” to reduce risk.

8. Swap Saturated for Monounsaturated Fats

If you are on a high-fat diet (e.g., ketogenic) and experience a significant increase in LDL particle number, consider replacing saturated fats with monounsaturated fats (like those from olives, olive oil, macadamia nuts) to potentially lower LDL-P, even while maintaining a high-fat intake.

9. Monitor Oxidized LDL and LPPLA2

Monitor your oxidized LDL levels (aiming for below 40) and LPPLA2 as these are important local markers of vascular inflammation, providing a clearer picture than general inflammatory markers like CRP.

10. Diet to Lower Triglycerides

You can significantly lower triglycerides, which are highly sensitive to dietary intervention, through specific dietary changes, potentially within a month.

11. Understand LDL Beyond “Bad Cholesterol”

Avoid misunderstanding “LDL cholesterol” as simply “bad cholesterol” by understanding that LDL stands for “low-density lipoprotein,” indicating it’s a macro structure carrying cholesterol, not cholesterol itself.

12. Combine LP(a) Mass & Cholesterol

If LP(a) particle number is unavailable, consider assessing both LP(a) mass and LP(a) cholesterol; if both are high, it indicates high particle number and risk, if both are low, risk is low, and if one is high and one is low, further follow-up may be needed.

13. Physicians: Learn About LP(a)

Physicians on the front lines of medicine, including family physicians and GYNs, should understand LP(a) to effectively help patients lower their cardiovascular disease risk.

14. Physicians: Deepen LP(a) Knowledge

If you are a physician and this is your first introduction to LP(a), commit to learning more about it to better serve your patients and understand cardiovascular risk factors.

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