Discordant Lipid Pattern and Carotid Atherosclerotic Plaque. Importance of Remnant Cholesterol

Walter Masson1,2, Martín Lobo2, Graciela Molinero2

  • 1Hospital Italiano de Buenos Aires, Servicio de Cardiología - Argentina.

Insights

Lipid discordance, where non-HDL cholesterol exceeds LDL cholesterol, and high remnant cholesterol are linked to subclinical atherosclerosis. These findings aid in refining residual cardiovascular risk assessment.

Area of Science:

  • Cardiovascular Medicine
  • Lipidology
  • Preventive Cardiology

Background:

  • Elevated non-HDL cholesterol (non-HDL-C) compared to LDL cholesterol (lipid discordance) or high remnant cholesterol may indicate increased residual cardiovascular risk.
  • Understanding the prevalence and clinical correlates of lipid discordance is crucial for risk stratification.

Purpose of the Study:

  • To determine the prevalence of lipid discordance in a primary prevention cohort.
  • To identify clinical variables associated with lipid discordance.
  • To investigate the association between lipid discordance, remnant cholesterol, and carotid plaque presence.

Main Methods:

  • Inclusion of primary prevention patients without diabetes or lipid-lowering therapy.
  • Definition of lipid discordance as non-HDL-C > LDL-C + 30 mg/dL.
  • Calculation of remnant cholesterol and assessment of carotid plaque via ultrasound; logistic regression analysis.

Main Results:

  • A 34% prevalence of lipid discordance was observed in 772 patients (66% women, mean age 52).
  • Male sex and higher body mass index were independently associated with lipid discordance.
  • Lipid discordance (40.2% vs. 29.2%, p=0.002) and higher remnant cholesterol were significantly associated with carotid plaque.

Conclusions:

  • Lipid discordance and elevated remnant cholesterol are associated with subclinical atherosclerosis.
  • These lipid patterns may serve as important markers for enhanced residual cardiovascular risk evaluation.
Abstract

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