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# Lipoprotein A- The Silent Lurking Shadow Behind Many Heart Attacks
- URL: https://www.mrunmayee.in/lipoprotein-a-the-silent-shadow-behind-many-heart-attacks/
- Published: 2026-10-01T18:04:20.000Z
- Updated: 2026-10-04T03:21:30.000Z
- Author: Mrunmayee Deshpande

A common scenario with devastating consequences that I see in my everyday practice as a cardiologist in India - a seemingly healthy, young person without any traditional risk factors for a heart attack - ends up with a massive one, with often dreadful short term and long term sequelae including untimely deaths. Imagine a young, apparently healthy person with their whole life ahead of them dying out of the blue from a sudden event which is meant to affect a much "older" population. Welcome to the era where heart attacks are no longer a disease of the middle-aged or old person.

Heart attack remains the number 1 killer of both Indian men and women, far surpassing the various other causes of deaths. The population of overweight and obese people is growing at an alarming rate in India- many of the cases starting right from childhood. The other associated risk factors for a heart attack including sedentary lifestyle, hypertension or high blood pressure, state of pre diabetes and diabetes and high blood lipid levels. Often, the above risk factors go hand in hand- one is associated with the other. Smoking, including passive smoking and tobacco abuse, are other factors for early heart attacks. Poor sleep, chronic stress, unhealthy diet, exposure to air pollution for prolonged durations and family history of heart attacks are few other risk factors for a heart attack.

However, there remains a portion of the population developing heart attacks who seem to have none of these risk factors. One such factor has been identified, a molecule named as lipoprotein A. This molecule is a type of lipid carrying particle that is not tested in a routine commercially lipid profile unless specified separately. This molecule was originally discovered in the 1960s, and its role in causing heart attacks was identified over the next couple of decades. It's testing was initially only available in specialized laboratory doing advanced lipid studies but since 2024, the testing of Lipoprotein A is routinely available in multiple pathology laboratories, though it needs to be specially mentioned to be tested along with routine lipid studies.  
Lipoprotein A is a cholesterol carrying molecule which leads to deposition of cholesterol or "blockages" in your heart, brain or any organ which has blood vessels (which basically might include all vital organs of our body). If the blood levels of the lipoprotein A are elevated, it increases your lifetime risk of having heart attacks and strokes. The levels of lipoprotein A are genetic and are largely unaffected by diet, exercise, lifestyle modification, and even the traditional lipid lowering medications. It affects a huge chunk of population - one is six people might have elevated Lipoprotein levels.  
A few rather fancy lipid lowering drugs (called PCSK inhibitors) can lead to a modest decline in Lipoprotein A levels, but this has not yet been of significant benefit in large studies.  
The current recommendations suggest a once-in-a-lifetime screening of Lipoprotein A levels of each and every person. Because Lipoprotein A levels are determined by your genes and remain mostly stable throughout your life, a single blood test is usually enough.  
None of the currently available lipid lowering drugs lowers the Lipoprotein A levels to a level where it ceases to be a trouble.

So, this molecule is basically a savage that resides in your blood, silently attacking the blood vessels of your body, depositing harmful fats there, ultimately leading to heart attacks and strokes for which there is no meaningfully useful treatment.

This brings us the next question- when diet, exercise and drugs fail to lower this nasty molecule, why even test for it and increase your anxiety?  
The answer lies in this- if someone has elevated Lipoprotein A levels, they need to control the other established risk factors of heart attack even more aggressively. If the usual risk factors are kept under a strict control, the Lipoprotein A has been found to add lesser fuel to a fire called atherosclerosis or blockage of vessels. If I have a patient with elevated Lipoprotein A levels, I make sure to keep a closer watch on their blood pressure, sugars, lipid profile etc. I advice them to strictly avoid any kind of substance abuse, keep a healthy lifestyle, have a balanced diet as control of these traditional risk factors becomes even more important. A couple of injectable lipid lowering medications can modestly reduce lipoprotein A levels though the effect might not always be consistent.

A huge amount of research is going on into preventive cardiology and this beast has been decided as the one to be tackled next. Many large studies are on- going and several new drugs are in pipeline. So even if a drug is not available today to significantly lower the levels, it might be available in near future.

To conclude, lipoprotein A is an elusive risk factor of heart attacks and it is recommended to have the levels checked once in a lifetime. It is a simple blood test, available in many laboratories. It is genetically inherited, and remains unaffected by diet, exercise or medications. If someone has elevated Lipoprotein A levels, their other risk factors of a heart attack need to be aggressively controlled. Many new drugs are being tested to lower the levels of this molecule and soon we might have a treatment option for this condition.