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Remnant cholesterol and new-onset atrial fibrillation: The Atherosclerosis Risk in Communities study

Xiaolan Ouyang1, Xixiang Tang2, Long Peng1

  • 1Department of Cardiovascular Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.

Heart Rhythm
|October 21, 2024
PubMed

Insights

Higher remnant cholesterol (RC) levels, especially baseline and variable RC, increase the risk of developing atrial fibrillation (AF). This study clarifies the link between RC characteristics and new-onset AF.

Area of Science:

  • Cardiovascular Medicine
  • Epidemiology
  • Biochemistry

Background:

  • The association between remnant cholesterol (RC) and atrial fibrillation (AF) requires further investigation.
  • Understanding this relationship is crucial for predicting and preventing AF.

Purpose of the Study:

  • To comprehensively explore the association between various remnant cholesterol (RC) characteristics and the incidence of new-onset atrial fibrillation (AF).

Main Methods:

  • Analysis of data from the Atherosclerosis Risk in Communities (ARIC) study across five follow-up visits.
  • Multidimensional evaluation of RC including baseline level, variability, cumulative exposure, and trajectory.
  • Cox proportional hazards analyses to assess the relationship between RC characteristics and AF incidence in two cohorts.

Main Results:

  • Elevated baseline RC and RC variability were significantly associated with an increased risk of new-onset AF.
  • The highest quartile of baseline RC showed a hazard ratio of 1.16 (P=.039), and RC variability showed 1.30 (P<.001).
  • Cumulative RC and high-increasing RC trajectory indicated a trend toward heightened AF risk, though not statistically significant.

Conclusions:

  • Higher remnant cholesterol (RC) levels, particularly baseline levels and variability, are linked to an increased risk of developing atrial fibrillation (AF).
  • These findings highlight RC as a potential risk factor for AF.
Abstract

Keywords:
ARIC studyAtrial fibrillationChange trajectoryCholesterol variabilityCumulative exposureRemnant cholesterol

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