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Published on: November 24, 2020
The role of triglycerides in cardiovascular risk
Puneet Gandotra1, Michael Miller
1Department of Medicine, University of Maryland Hospital, Division of Cardiology, Room S3B06, 22 South Greene Street, Baltimore, MD 21201, USA.
Insights
Triglycerides are now viewed as a biomarker, not an independent risk factor, for coronary heart disease (CHD). Lowering very high triglycerides remains crucial, while their role alongside LDL cholesterol reduction is under investigation.
Area of Science:
- Cardiology
- Metabolic Syndrome
Background:
- The role of triglycerides in coronary heart disease (CHD) risk has been debated.
- Recent consensus suggests triglycerides function as a biomarker for CHD risk rather than an independent risk factor.
Purpose of the Study:
- To evaluate the current understanding of triglycerides in CHD risk assessment.
- To discuss the ongoing research on triglyceride-lowering therapies and their benefits.
- To outline current guidelines for managing elevated triglycerides.
Main Methods:
- Review of meta-analyses and consensus statements on triglyceride's role in CHD.
- Analysis of current recommendations from major health organizations.
- Discussion of ongoing clinical studies.
Main Results:
- Triglycerides are increasingly recognized as a CHD risk biomarker.
- The benefit of triglyceride lowering beyond LDL cholesterol reduction is under investigation.
- Guidelines vary, with some prioritizing non-HDL cholesterol after LDL goals are met.
Conclusions:
- Managing very high triglyceride levels (> 500 mg/dL) is a high priority.
- Further research is needed to clarify the independent benefits of triglyceride reduction in CHD prevention.
- Current guidelines reflect a nuanced approach to triglyceride management in cardiovascular risk assessment.
Abstract:
Triglycerides' role in coronary heart disease (CHD) risk assessment has long been debated. Although meta-analyses have suggested that triglycerides are an independent risk factor for CHD, a consensus has emerged that triglycerides more appropriately represent a biomarker of CHD risk rather than an independent risk factor. Ongoing studies will determine whether triglyceride lowering confers additional CHD benefit beyond that attained via low-density lipoprotein (LDL) cholesterol reduction. The American Diabetes Association presently recommends lowering elevated triglycerides as a secondary therapeutic target after LDL cholesterol, whereas other organizations, such as the National Cholesterol Education Program, recommend non-high-density lipoprotein cholesterol as the second priority after attaining the LDL cholesterol goal. However, reducing very high triglycerides (ie, > 500 mg/dL) remains a sufficiently high priority in affected individuals.
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