Elevated Lipoprotein (a): Causes, Risks, and Treatment

What Is Lipoprotein (a)?

Your liver makes this big lipoprotein that carries fats through your blood. Think of it like the troublesome kind of LDL (low-density lipoprotein) cholesterol.

While LDL creates plaque "speed bumps" in your arteries, Lp(a), or lipoprotein(a), does something worse: it makes your blood clot more easily and prevents those clots from breaking down naturally. Plus, it causes inflammation that can burst those plaque deposits, attracting even more clots.

What Is Elevated Lipoprotein (a)?

If your Lp(a) levels are high, you might be looking at a greater chance of heart problems like a heart attack or artery blockages. You could get perfectly normal results (less than 30 mg/dL or less than 75 nmol/L) on your regular cholesterol test and still have high Lp(a) levels (more than 50 mg/dL or more than 125 nmol/L).

What Are the Causes and Risk Factors of Elevated Lipoprotein (a)?

Causes:

So what makes your Lp(a) levels climb?

• Lp(a) levels are mostly written in your genes; you have inherited them from your parents.
• Your ethnic background plays a role, too. If you are African American or South Asian, you are more likely to have higher levels. On the flip side, if you are Caucasian or East Asian, your levels tend to be lower.
• A few health issues can be the cause:
  • Hypothyroidism occurs when your thyroid gland is underactive.
  • Kidney disease.
  • Nephrotic syndrome is basically another kidney problem that messes with your body's filtering system.
  • If you are going through menopause and your estrogen levels drop, your Lp(a) might spike.

Risk Factors:

• If you have a family history of elevated lipoprotein (a), you may also be at high risk.
• If you have personally dealt with a heart attack (the blood flow to your heart muscles is stopped), stroke (when the blood flow to your brain is blocked), clogged arteries, or aortic valve problems before hitting 55 (for men) or 65 (for women), you are in the high-risk category.
• If you have familial hypercholesterolemia (high cholesterol levels) running in your family, you may also have high Lp(a) levels.

What Are the Symptoms of Elevated Lipoprotein (a)?

The symptom of high lipoprotein(a) is that you won't feel it. That is why doctors sometimes call it a "silent killer." You could have high levels and feel perfectly fine, right up until it causes something serious.

So while Lp(a) itself does not give you symptoms, the problems it creates definitely do. What you might notice:

• Shortness of Breath:

When plaque clogs up your arteries, your heart and lungs don't get the blood flow they need. You might find yourself getting winded just walking up stairs or doing simple tasks.

• Chest Pain:

It could mean you are developing coronary artery disease (coronary artery blockage). Pay attention if your chest hurts when you are active or stressed out.

• Feeling Wiped Out:

If you are constantly exhausted, it might be because your heart is working overtime trying to pump blood through narrowed arteries.

• Stroke Warning Signs:

Watch out for sudden weakness on one side of your body, trouble speaking, or vision problems. These could mean Lp(a) has caused a dangerous blood clot.

• Leg Pain or Cramps:

Whether you are walking or just sitting, leg pain could signal peripheral artery disease (narrowing of the arteries), another condition that high Lp(a) can trigger.

How Is Elevated Lipoprotein (a) Diagnosed?

If you are wondering whether your lipoprotein (a) levels are too high, you will need to get an Lp(a) test. Though this test is not included in your regular cholesterol check, you will need to request it separately.

Your doctor will draw a small blood sample from a vein in your arm. You usually do not need to do anything special beforehand, such as fasting or other prep work. That said, if your doctor does need you to prepare in some way, they will definitely let you know ahead of time.

When it comes to your lipoprotein (a) levels, you will want to keep them under 30 mg/dL.

If your results come back higher, what they mean for you:

• Between 14 and 30 mg/dL means you are in the borderline zone.
• If you got numbers from 31 to just under 50 mg/dL, that puts you in the high-risk category.
• Anything over 50 mg/dL means you are looking at the highest risk level.

How Is Elevated Lipoprotein (a) Treated?

If you have elevated lipoprotein (a), you should adopt the following measures:

Taking Control of Your Other Risk Factors:

If you have a high Lp(a), your best bet is to tackle all your other heart disease risk factors, like all the cholesterol in your blood that is not the "good" HDL (high-density lipoprotein) kind. Most of it is actually LDL (low-density lipoprotein) cholesterol, you know, the one everyone calls "bad cholesterol."

Pharmacological Management:

Lipid-Lowering Therapy:

When your cholesterol is too high, your doctor might recommend statins, fibrates, bile acid binders, cholesterol absorption blockers, or niacin-based medications.

• Statins:

These are your go-to medications for preventing heart disease. You might recognize names like Simvastatin (usually 40 milligrams), Rosuvastatin, or Cerivastatin. If you are breastfeeding, you will need to talk to your doctor about alternatives since statins can affect nursing babies.

• Bile Acid Binding Agents:

These work by revving up your LDL receptors to clear more cholesterol from your blood. You might experience constipation, heartburn, or bloating.

• Niacin:

This water-soluble B vitamin works by telling your liver to slow down on making VLDL (very low-density lipoprotein) particles. If you have high LDL and triglycerides but your HDL is low or normal, niacin could be perfect for you. It is great at boosting HDL by preventing it from breaking down too quickly.

• Nicotinic Acid Derivatives:

You would take high doses (1.5 to 6 grams) for the cholesterol-lowering effect. Your doctor might pair this with a statin or use it if you can't tolerate statins.

• Fibrates:

These tackle high triglycerides by boosting an enzyme called lipoprotein lipase, which breaks down triglycerides in your VLDL and LDL particles.

Lifestyle Changes:

• Eat heart-healthy foods rich in omega-3s, such as nuts, olive oil, whole grains, fruits, and veggies, while cutting back on fatty meats and processed junk.
• Do regular exercise.
• Keep your weight in check.
• When you are constantly stressed, your bad cholesterol tends to creep up.
• Avoid cigarettes.
• Prioritize quality sleep.
• Keep alcohol in moderation.

Other Treatments:

Other treatments that can help bring down your Lp(a) levels

• PCSK9 Inhibitors:

These medications can knock your levels down by about 20 to 30 %. The thing is, they are not officially approved just for lowering Lp(a) yet.

• Lipoprotein Apheresis:

Think of this as a kind of dialysis for your blood. You would go in weekly or every two weeks, and it can slash your Lp(a) levels by up to 75 %. But doctors only recommend this if you have had heart problems that keep coming back, even when everything else is under control.

Conclusion

If you are dealing with high cholesterol, you are looking at double the risk of a heart problem. High cholesterol is sneaky with zero symptoms, which is why staying on top of healthy habits matters so much. It is a genetic factor that persists throughout your life and can seriously affect your heart health.

You can fight back with a healthy diet packed with nutrients and regular exercise. Sometimes, though, lifestyle changes are not enough, so don't hesitate to talk to a heart specialist about medications like statins.

Key Takeaways

• Elevated lipoprotein (a) is a high cholesterol that you can get from your parents, or it can be due to risk factors that increase the risk of a heart attack.

• No need to stress about this. Your doctor can prescribe medications that work, and you can make some lifestyle changes that will also work.

• Those newer targeted treatments they've developed lately are actually working way better than the old statins we used to rely on.