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Treating mixed dyslipidemias: why and how.

C M Ballantyne¹

¹Section of Atherosclerosis, Baylor College of Medicine, Houston, Texas 77030, USA. cmb@bcm.tmc.edu

Clinical Cardiology

|July 11, 2001

Summary

Patients with low HDL-C and high triglycerides face high cardiovascular risk. Statins and fibrates show potential benefits, with combination therapy improving lipid profiles but raising concerns about cost and side effects.

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Area of Science:

Cardiology
Metabolic Disorders
Pharmacology

Background:

Patients with mildly elevated low-density lipoprotein cholesterol (LDL-C) but low high-density lipoprotein cholesterol (HDL-C) and/or high triglycerides are at increased risk for cardiovascular disease (CVD).
Dyslipidemia, characterized by abnormal lipid levels, is a significant risk factor for atherosclerosis and related cardiovascular events.

Purpose of the Study:

To review the efficacy of lipid-lowering therapies, including statins, fibrates, and combination treatments, in managing dyslipidemia and reducing cardiovascular risk.
To evaluate the impact of these therapies on low high-density lipoprotein cholesterol (HDL-C) and triglyceride levels in at-risk patients.

Main Methods:

Literature review of clinical trials and studies investigating the effects of statins, fibrates, and combination therapies on lipid profiles and cardiovascular outcomes.
Analysis of data concerning patients with mixed dyslipidemias, specifically focusing on low HDL-C and elevated triglycerides.

Main Results:

Statins have demonstrated effectiveness in slowing coronary heart disease (CHD) progression and reducing CHD events, particularly in patients with low HDL-C.
Fibrate trials have yielded mixed results regarding their benefit in patients with low HDL-C.
Combination therapy with statins and fibrates or niacin effectively improves the overall lipid profile, including HDL-C and triglycerides.

Conclusions:

Statins are beneficial for patients with low HDL-C and mixed dyslipidemias.
Combination therapy offers comprehensive lipid profile improvement but necessitates consideration of increased costs and potential side effects.
Further research may be warranted to optimize combination therapy strategies for cardiovascular risk reduction.

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