Risk factors that predict for presence of clinically significant, noncalcified plaque in younger adults

Aditya Mehta1, Felix Thomas2, Venkat Manubolu2

  • 1Department of Medicine.

Coronary Artery Disease
|January 30, 2025
PubMed

Insights

In young adults, diabetes, hyperlipidemia, and Hispanic ethnicity are linked to noncalcified plaque, even with zero coronary artery calcium (CAC) score. This highlights key risk factors for early cardiovascular disease assessment.

Area of Science:

  • Cardiology
  • Radiology
  • Preventive Medicine

Background:

  • Coronary artery calcium (CAC) scoring is a tool for cardiovascular disease risk assessment in young adults.
  • Identifying risk factors for noncalcified plaque is crucial for early intervention.

Purpose of the Study:

  • To investigate risk factors for noncalcified plaque in young adults (18-45 years).
  • To assess total plaque burden in relation to coronary artery calcium (CAC) scores.

Main Methods:

  • Retrospective cohort study of 1026 patients aged 18-45 years.
  • CAC scoring and coronary computed tomography (CT) angiograms were performed.
  • Logistic regression identified independent risk factors for noncalcified plaque when CAC score was 0.

Main Results:

  • Among patients with CAC score of 0, 63 had noncalcified plaque (TPS >0).
  • Noncalcified plaque was significantly associated with Hispanic ethnicity, diabetes, and hyperlipidemia.
  • Significant stenosis (>50% or >70%) was observed in a subset of patients with noncalcified plaque.

Conclusions:

  • Diabetes, hyperlipidemia, and Hispanic origin are significant risk factors for noncalcified plaque in young adults.
  • These factors are important even when CAC score is zero, indicating subclinical atherosclerosis.
Abstract

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