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Association between Traditional Risk Factors and Coronary Artery Ectasia: A Study on 10057 Angiographic Procedures

Ali Reza Amirzadegan1, Gholamreza Davoodi1, Abbas Soleimani1

  • 1Tehran Heart Center, Tehran University of Medical Sciences, Tehran, Iran.

The Journal of Tehran Heart Center
|January 7, 2015
PubMed

Insights

Coronary artery ectasia (CAE) affects 1.5% of patients and is linked to older age and male sex, but not conventional risk factors. While often benign, CAE can cause persistent symptoms leading to hospital admissions.

Area of Science:

  • Cardiology
  • Vascular Biology
  • Epidemiology

Background:

  • The distinct nature of coronary artery ectasia (CAE) remains unclear, with ongoing debate about whether it is a unique condition or a consequence of other clinical factors.
  • Understanding the prevalence, associated patient characteristics, and long-term prognosis of CAE is crucial for clinical management.

Purpose of the Study:

  • To determine the prevalence of coronary artery ectasia (CAE) in an Iranian population undergoing coronary angiography.
  • To investigate the relationship between CAE and demographic/clinical characteristics of patients.
  • To assess the long-term prognosis and clinical outcomes of patients with CAE.

Main Methods:

  • A retrospective analysis of 10,057 patients who underwent coronary angiography.
  • Patients were categorized into three groups: normal coronary arteries, CAE without significant stenosis (<50%), and coronary artery stenosis (>50%).

Main Results:

  • The prevalence of CAE was found to be 1.5%.
  • CAE patients were older, more frequently male, and had higher rates of myocardial infarction (MI) compared to individuals with normal coronary arteries.
  • CAE patients exhibited lower frequencies of diabetes and MI than those with significant coronary artery stenosis (CAS).
  • The right coronary artery and left anterior descending artery were most commonly affected, predominantly in their proximal segments.
  • Patients with ectasia in three vessels had higher MI rates.
  • During a mean follow-up of 54.23 months, chest pain and dyspnea persisted in over 97% of patients, resulting in hospital admission for more than 14%.

Conclusions:

  • Pure coronary artery ectasia (CAE) appears to be a benign feature of atherosclerosis, independent of conventional risk factors.
  • Despite its benign nature, CAE can lead to frequent hospital admissions due to persistent cardiovascular symptoms such as chest pain and dyspnea.
Abstract

Keywords:
Coronary angiography • Coronary vessel anomalies • Prevalence • Risk factors

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