Coronary artery calcification and ECG pattern of left ventricular hypertrophy or strain identify different healthy

Søren Zöga Diederichsen1, Oke Gerke, Michael Hecht Olsen

  • 1Department of Cardiology, Odense University Hospital, Odense, Denmark.

Insights

Coronary artery calcification (CAC) and ECG findings of left ventricular hypertrophy/strain do not appear related. These markers may identify different individuals at risk for ischaemic heart disease and offer additive prognostic value.

Area of Science:

  • Cardiology
  • Preventive Medicine
  • Diagnostic Imaging

Background:

  • Ischaemic heart disease risk stratification benefits from multiple markers.
  • Coronary artery calcification (CAC) and ECG patterns of left ventricular hypertrophy (LVH)/strain provide independent prognostic information.

Purpose of the Study:

  • Investigate the association between established risk factors, ECG measurements, and the presence of CAC.
  • Evaluate the relationship between ECG-suspected LVH/strain and CAC.

Main Methods:

  • A random sample of 1226 healthy individuals aged 50 or 60 years underwent screening.
  • CAC score assessed via noncontrast computed tomographic (CT) scan.
  • ECG analysis included LVH (Sokolow-Lyon, Cornell product) and strain patterns; multivariate logistic regression used for association analysis.

Main Results:

  • Hypertension prevalence was 50%.
  • Hypertensive individuals showed higher rates of LVH/strain (21% vs. 14%) and CAC (52% vs. 38%) compared to non-hypertensives.
  • No association was found between ECG abnormalities (LVH/strain) and the presence of CAC in multivariate analyses.

Conclusions:

  • No relationship exists between CAC and ECG-suspected LVH and/or strain.
  • CAC and ECG findings may identify distinct individuals at risk.
  • Combined use of these markers could offer additive prognostic value for ischaemic heart disease.
Abstract

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