Improving a Patient’s CVD Risk Assessment—Updating the Interpretation of the Lipid Profile

The lipid profile remains an important laboratory assessment to prevent cardiovascular disease. Interpretation of the non-fasting lipid profile has significantly changed based on new information concerning the pathogenesis of atherosclerosis. In particular, the assessment of risk from cholesterol containing particles following triglyceride metabolism (termed remnant cholesterol) can now be done from a lipid profile. In addition, non-HDL cholesterol as calculated from the lipid profile will provide a complete assessment of total circulating cholesterol containing particles. Furthermore, the formula for measurement of LDL cholesterol from a lipid profile has now been revised so that triglyceride levels exert less interference. Finally, the old concept that the “higher the HDL-c, the better” is no longer tenable. New data indicate that the optimal high density lipoprotein level is below 100 mg/dl for both male and female patients. Correct interpretation of the lipid profile will optimize anti-atherosclerotic therapy and reduce the number one cause of death in the United States.

Improving Cardiovascular Risk Assessment to Optimize Therapy

Background: Quantifying ten-year cardiovascular risk can be challenging. Different online risk calculators provide different risk estimates and online risk calculators use only one point in time. However, risk factors occur over the lifetime of the individual. Purpose: This manuscript provides three solutions to improving ten-year cardiovascular risk assessment in individuals at intermediate risk. Methods: Measuring Lipoprotein(a)—Lp(a) is recommended for assessing cardiovascular risk in all individuals who are in the intermediate risk category by standard online risk calculators. Lp(a) is primarily determined by genetic inheritance. It has the undesirable properties of being proatherosclerotic, proinflammatory, and prothrombotic. Measuring apolipoprotein B (apo B) provides a good index of the number of atherosclerotic particles present. Studies have demonstrated that small, dense LDL cholesterol particles are more atherogenic than larger, less dense LDL cholesterol particles. Measuring high sensitivity C-reactive protein (hsCRP) provides a good estimation of the degree of inflammation in the vascular system. Inflammation is a critical component of heart attacks and strokes. It is increased in diabetes and obesity. Treatment to reduce inflammation results in a reduction of cardiovascular events, independent of lipid values. Results: The above three risk factors should be measured in all patients with an intermediate risk score. Routine assays are readily available at a reasonable cost. They are independent risk factors for cardiovascular disease. Their recommendation is based on the pathophysiology of atherosclerotic cardiovascular disease. Successful therapy will result in the decrease of each of these risk factors. Conclusion: The recommended approach will improve the assessment of cardiovascular risk and guide the physician and patient to the correct treatment recommendations.

Can the 2019 AHA/ACC Cardiovascular Guidelines Be Improved?

The 2019 ACC/AHA Guideline on the Primary Prevention of Cardiovascular Disease?for treatment of atherosclerosis in asymptomatic individuals is an advance over previously published recommendations. However, since all guidelines are based on a limited quantity of published studies and result from a consensus of experts in different fields of medicine, omissions and errors are inevitable. The present manuscript identifies four areas in these 2019 AHA/ACC guidelines that alternative approaches or changes would result in improved outcomes and reductions in atherosclerotic events. First, the goal for the reduction in the prevalence of cardiovascular disease should be total (100%) eradication of the disease. This is a feasible goal as the facilities and resources to accomplish this task are currently available. Second, guidelines should acknowledge that atherosclerosis is a reversible disease as has previously been documented by multiple studies. If reversible, then under the appropriate clinical circumstances, it is preventable. Third, the goal for LDL cholesterol reduction should be <50 mg/dl, if eradication of atherosclerosis is to be achieved. This goal is achievable and safe as suggested by published studies. Fourth, widespread use of the coronary artery calcium scan needs to be recommended so that early atherosclerosis can be reversed before a major cardiovascular event occurs. Treating all individuals at a specific risk category without regard for the presence of disease results in poor adherence to therapy and unnecessary side effects. Consideration of these four issues would improve the AHA/ACC guidelines and result in better patient care.