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Published on: November 17, 2015
JCL roundtable: Lipid treatment targets
Debra A Friedrich1, Dean G Karalis2, Karen E Aspry3
1College of Nursing and Health, Loyola University, New Orleans, LA, USA.
Insights
Clinical lipidologists focus on low-density lipoprotein cholesterol (LDL-C) and non-high-density lipoprotein cholesterol as key atherogenic risk markers. New calculations and guidelines refine LDL-C treatment goals for cardiovascular risk reduction.
Area of Science:
- Cardiovascular Medicine
- Clinical Lipidology
- Atherosclerosis Research
Background:
- Current clinical practice relies on atherogenic risk markers and treatment targets for managing cardiovascular disease.
- Established guidelines, such as the ACC/AHA/Multisociety Cholesterol Guidelines, shape lipid management strategies.
- Certain biomarkers, like high-density lipoprotein cholesterol and lipoprotein(a), are associated with risk but not primary treatment targets.
Purpose of the Study:
- To examine the risk marker framework supporting current cholesterol guidelines.
- To understand the practical application of atherogenic risk markers and treatment targets in daily clinical lipidology.
- To discuss the evolving landscape of lipid management, including advanced testing and risk assessment.
Main Methods:
- Roundtable discussion among clinical lipidologists.
- Review of current ACC/AHA/Multisociety Cholesterol Guidelines.
- Analysis of prominent atherogenic risk markers and their role as treatment targets.
- Discussion of advanced lipid testing and vascular imaging, including coronary artery calcium scoring.
Main Results:
- Low-density lipoprotein cholesterol (LDL-C) and non-high-density lipoprotein cholesterol remain central treatment targets.
- A novel LDL-C calculation offers improved accuracy over the Friedewald calculation.
- Treatment goals for LDL-C include absolute thresholds (e.g., <70 mg/dL) and relative reductions (e.g., ≥50%).
- Treatment timing (earlier, milder vs. later, stronger) is a key consideration in atherosclerotic progression.
Conclusions:
- Clinical lipidologists prioritize LDL-C and non-HDL-C for managing atherogenic risk.
- Accurate LDL-C measurement and guideline-directed goals are crucial for cardiovascular risk reduction.
- Advanced lipid testing and vascular imaging complement traditional risk assessment to guide personalized treatment strategies.
Abstract:
This Roundtable discussion concerns atherogenic risk markers and treatment targets used by clinical lipidologists in daily practice. Our purpose is to understand the risk marker framework that supports and enables the new ACC/AHA/Multisociety Cholesterol Guidelines. Some biomarkers are highly associated with atherogenic risk but fail to qualify as treatment targets. Prominent examples are high-density lipoprotein cholesterol, for which targeted treatment has failed to reduce cardiovascular risk, and lipoprotein(a), which currently lacks a highly effective mode of treatment. As a consequence, guidelines have focused consistently on low-density lipoprotein cholesterol (LDL-C) and more recently on non-high-density lipoprotein cholesterol. We discuss a new calculation for LDL-C that shows greater accuracy than the commonly performed Friedewald calculation. LDL-C treatment goals have renewed prominence in the 2018 Guidelines. Thresholds for treatment initiation or intensification inherently establish goals of reducing atherogenic cholesterol levels below the thresholds. Treatment goals may be absolute, such as less than 70 mg/dL for LDL-C in very high-risk secondary prevention or relative, such as 50% or greater reduction of LDL-C. The timeframe of treatment is another consideration because milder treatment started earlier may sometimes be preferred over stronger treatment given late in the course of atherosclerotic progression. Advanced lipid testing and vascular imaging, particularly coronary artery calcium, also have their place in risk assessment to guide clinical lipid practice.
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