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Diffuse coronary artery dilation predicted worse long-term outcomes in patients with coronary artery Ectasia

Zhongxing Cai1, Jianxin Liu1, Haoyu Wang1

  • 1Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China.

International Journal of Cardiology
|June 7, 2020
PubMed

Insights

Diffuse coronary artery ectasia (CAE) significantly increases the risk of major adverse cardiovascular events (MACE) compared to focal CAE. Physicians should pay closer attention to diffuse dilation findings in coronary angiography.

Area of Science:

  • Cardiology
  • Vascular Medicine
  • Interventional Cardiology

Background:

  • Coronary artery ectasia (CAE) is a rare condition characterized by dilated coronary arteries.
  • CAE is classified into diffuse and focal dilation phenotypes.
  • Clinical outcome differences between diffuse and focal CAE remain unclear.

Purpose of the Study:

  • To compare the clinical outcomes between patients with diffuse and focal coronary artery ectasia.
  • To determine if the phenotype of CAE impacts major adverse cardiovascular events (MACE).

Main Methods:

  • A cohort study included 595 patients with CAE identified via coronary angiography (2009-2013).
  • Annual follow-up assessed major adverse cardiovascular events (MACE), including cardiovascular death and myocardial infarction.
  • Statistical analyses included Kaplan-Meier, Cox regression, propensity score matching/weighting, and subgroup analysis.

Main Results:

  • Diffuse CAE (n=474) was associated with significantly higher MACE rates (13.1%) versus focal CAE (n=121) (3.3%) over 87 months median follow-up.
  • Cardiovascular death rates were also higher in the diffuse CAE group (7.0% vs. 1.7%).
  • These findings were consistent across propensity score analyses and subgroup investigations.

Conclusions:

  • Diffuse coronary artery ectasia is linked to a substantially increased risk of MACE compared to focal CAE.
  • Physicians should recognize the heightened risk associated with diffuse coronary dilation and consider it in patient management.
Abstract

Keywords:
AneurysmCoronary artery ectasiaMajor adverse cardiovascular eventOutcome

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