Left ventricular trabeculation and major adverse cardiovascular events: the Copenhagen General Population Study

Per E Sigvardsen1,2, Andreas Fuchs1, Jørgen T Kühl1

  • 1Department of Cardiology, The Heart Center, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, DK-2100 Copenhagen, Denmark.

Insights

Increased left ventricular trabeculation, a common trait in heart disease, is linked to a higher risk of major adverse cardiovascular events in the general population. This finding highlights trabeculation as a potential indicator for cardiovascular risk assessment.

Area of Science:

  • Cardiology
  • Cardiovascular Imaging
  • Public Health

Background:

  • Prominent left ventricular trabeculations are a known phenotypic trait in cardiovascular diseases.
  • The variability of left ventricular trabeculations in the general population is significant, but its association with adverse outcomes remains unclear.

Purpose of the Study:

  • To investigate the association between left ventricular trabeculated mass and major adverse cardiovascular events in the general population.
  • To determine if increased left ventricular trabeculation independently predicts adverse cardiovascular outcomes.

Main Methods:

  • Contrast-enhanced cardiac computed tomography was used to measure left ventricular trabeculated mass in 10,097 individuals.
  • Cox regression models were employed to analyze the association between trabeculated mass and a composite endpoint of major adverse cardiovascular events (death, heart failure, myocardial infarction, stroke).
  • Analyses were adjusted for relevant clinical parameters, medical history, electrocardiographic findings, and cardiac chamber sizes.

Main Results:

  • The mean left ventricular trabeculated mass was 19.1 g/m2 (SD 4.9 g/m2).
  • During a median follow-up of 4.0 years, individuals in the highest quartile of left ventricular trabeculated mass had a 1.64-fold increased hazard for major adverse cardiovascular events compared to the lowest quartile.
  • Significantly higher risks were observed for death (HR 2.08) and heart failure (HR 2.63) in the highest trabeculation quartile, while risks for myocardial infarction and stroke were not significantly increased.

Conclusions:

  • Increased left ventricular trabeculation is independently associated with a higher incidence of major adverse cardiovascular events in the general population.
  • Left ventricular trabeculated mass may serve as a valuable imaging biomarker for cardiovascular risk stratification.
Abstract

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