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Preventive Health 6 min read
Heart Disease Prevention: The Tests Your Cardiologist Might Not Order
Dr. R. Brahmananda Reddy
6 April 2026
Knowledge Hub
Dr. R. Brahmananda Reddy
6 April 2026
Heart disease remains the number one killer globally, and India bears a disproportionate burden — Indians develop coronary artery disease a full decade earlier than Western populations and have a higher case-fatality rate. Yet the standard cardiac evaluation — blood pressure, basic lipid panel, and perhaps a treadmill stress test — catches only a fraction of those at risk.
The uncomfortable truth? The first symptom of heart disease is a heart attack in approximately 50% of cases. If we want to prevent rather than react, we need tests that detect the disease process years or decades before catastrophic events.
ApoB (Apolipoprotein B): As we have discussed elsewhere, ApoB counts every atherogenic particle in your blood — not just the cholesterol they carry. It is a superior predictor of cardiovascular events compared to LDL-C. Longevity target: below 60 mg/dL.
Lipoprotein(a) [Lp(a)]: This is a genetically determined lipoprotein particle that dramatically increases cardiovascular and aortic valve disease risk. Approximately 20% of the global population has elevated Lp(a), and you cannot change it through diet or exercise. It is largely genetically fixed, which means it only needs to be measured once — but that one measurement can be life-altering. Yet most doctors never order it.
A 2022 European Heart Journal consensus statement recommended Lp(a) measurement in all adults at least once in their lifetime, as levels above 50 mg/dL (or 125 nmol/L) significantly increase cardiovascular risk.
CIMT (Carotid Intima-Media Thickness): This ultrasound measurement of the carotid artery wall thickness directly visualizes early atherosclerosis. It is non-invasive, inexpensive, and provides structural evidence of vascular aging that blood tests cannot.
Coronary Artery Calcium (CAC) Score: A low-dose CT scan that quantifies calcified plaque in the coronary arteries. A CAC score of zero is powerfully reassuring — it indicates very low 10-year cardiovascular event risk. A non-zero score, conversely, provides motivation and guidance for aggressive risk factor management. The 2019 ACC/AHA guidelines endorse CAC scoring for risk stratification in intermediate-risk patients.
hs-CRP: Inflammation drives plaque instability. An hs-CRP above 1.0 mg/L adds independent risk information beyond lipid levels.
Homocysteine: Elevated homocysteine damages the vascular endothelium and promotes thrombosis. Levels above 10 μmol/L warrant attention, and correction with B vitamins is straightforward when identified.
Fasting insulin and HOMA-IR: Insulin resistance is a powerful driver of atherosclerosis — often years before glucose levels become abnormal. These markers bridge the gap between metabolic and cardiovascular risk assessment.
VO2 max testing: Cardiorespiratory fitness is the strongest predictor of cardiovascular mortality. A VO2 max test quantifies your fitness level with precision and guides exercise prescriptions that actually move the needle on heart health.
No single test is sufficient. Cardiovascular risk assessment should integrate advanced lipid testing, inflammatory markers, metabolic assessment, structural imaging, and functional fitness evaluation. Together, these create a comprehensive picture that standard screening cannot match.
At GenoRyx, our cardiovascular risk assessment goes far beyond the routine checkup. Book a consultation to discover what your heart health truly looks like — not just whether you have crossed a disease threshold.
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UK-trained physician and founder of Genoryx. Writes about longevity medicine, healthspan optimization, and evidence-based wellness.
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