Lipoprotein(a): The Test Most Malaysians Have Never Had

Lipoprotein(a), abbreviated Lp(a), is an LDL-like particle with an extra protein attached called apolipoprotein(a). Your level is set by the gene that codes for that protein. It is essentially fixed from childhood and does not change meaningfully with diet, exercise, statin therapy or weight loss.

Elevated Lp(a) does three things in the arteries: it accelerates atherosclerosis (like LDL), it promotes thrombosis (clotting), and it speeds up calcification of the aortic valve. Large genetic and outcome studies have established it as an independent, causal risk factor for myocardial infarction, ischaemic stroke and calcific aortic stenosis. Independent means it adds to the risk from LDL, blood pressure, smoking and diabetes, rather than being captured by them.

Roughly 20% of the global population inherits a level high enough to matter clinically. Despite this, it is essentially never ordered in routine Malaysian general practice.

The European Society of Cardiology recommends measuring Lp(a) at least once in every adult's lifetime. In practice, the highest-yield groups are:

• Anyone undergoing a structured cardiovascular risk assessment, particularly in the 30 to 60 age range.
• Family history of premature cardiovascular disease (heart attack, stroke or sudden cardiac death in a first-degree relative before age 60).
• Personal history of premature cardiovascular disease.
• Elevated LDL cholesterol that has been difficult to explain or to control.
• Familial hypercholesterolaemia or suspected familial hypercholesterolaemia.
• Recurrent cardiovascular events despite well-controlled standard risk factors.

If you have ever had a structured lipid panel and Lp(a) was not on it, it was almost certainly missed.

A single fasting venous blood draw. Result back within a few working days. No imaging, no follow-up sample needed, no annual recheck. Because the level is genetically fixed, one measurement is sufficient for life in the vast majority of people.

At Hisential the test is added on at the same visit as your wider lipid panel and risk assessment, so it does not require a separate appointment.

Lp(a) is reported in either mg/dL (mass) or nmol/L (particle concentration). The two units are not directly interchangeable, but the cut-offs map across.

• Below 30 mg/dL (about 75 nmol/L): low; minor contribution to cardiovascular risk.
• 30 to 50 mg/dL (about 75 to 125 nmol/L): borderline; modest contribution.
• 50 to 90 mg/dL (about 125 to 225 nmol/L): elevated; meaningful independent risk.
• Above 90 mg/dL (about 225 nmol/L): high; substantial independent risk, especially with any other risk factor.

The numbers are guidance, not a verdict. The clinical question is always: given this Lp(a), how should the rest of your plan change?

Lp(a) itself does not respond meaningfully to lifestyle or to statins. Niacin lowers it modestly but is not used for this purpose. Specific Lp(a)-lowering therapies (RNA-based agents like pelacarsen and olpasiran) are in advanced clinical trials but are not yet approved for routine use.

The practical strategy when Lp(a) is high is to intensify every other modifiable cardiovascular risk factor:

• Lower LDL more aggressively. A high Lp(a) typically shifts you up one risk band, which tightens your LDL target. Statin plus ezetimibe, and if needed PCSK9 inhibitor therapy, get you there.
• Treat blood pressure to target. Even small reductions matter more when baseline cardiovascular risk is higher.
• Glycaemic and weight optimisation. Insulin resistance compounds Lp(a)-driven risk.
• Smoking cessation. Non-negotiable.
• Aspirin in selected patients. Considered in higher-risk men with elevated Lp(a) where bleeding risk allows.
• Cascade screening. Because Lp(a) is inherited, first-degree relatives benefit from testing too.

Lp(a) is determined by a single gene and is essentially stable from late childhood onwards. Apart from rare situations (pregnancy, severe systemic illness, kidney failure, thyroid disease), the number you have at 35 is the number you will have at 75. Repeat testing is unnecessary and a waste of money. What changes over time is the action you take in response to the result.