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Coronary arteries anomalous aortic origin on a computed tomography angiography population: prevalence,

José Amado1, Mónica Carvalho2, Wilson Ferreira2

  • 1Cardiology Department, Serviço de Cardiologia, Centro Hospitalar do Algarve, R. Leão Penedo, 8000-386, Faro, Portugal. pina_amado@hotmail.com.

The International Journal of Cardiovascular Imaging
|February 8, 2016
PubMed

Insights

Anomalous aortic origin of coronary arteries (AAOCA) is a rare condition. This study found AAOCA prevalence of 1.5% in adults undergoing CT angiography, with no increased middle-term cardiac event risk compared to controls.

Area of Science:

  • Cardiology
  • Radiology
  • Medical Imaging

Background:

  • Anomalous aortic origin of coronary arteries (AAOCA) is a significant cause of sudden cardiac death in young individuals.
  • Understanding the prevalence and clinical impact of AAOCA is crucial for risk stratification.

Purpose of the Study:

  • To determine the prevalence and anatomical characteristics of AAOCA in a population undergoing computed tomography angiography (CTA).
  • To evaluate the clinical prognosis of patients with AAOCA at mid-term follow-up.

Main Methods:

  • Retrospective analysis of 3539 CTAs to identify AAOCA cases.
  • Comparison of AAOCA patients with an age- and gender-matched control group.
  • Telephone follow-up to assess cardiac events over a mean of 45.9 months.

Main Results:

  • AAOCA prevalence was 1.5% (53 cases).
  • Most common anomalies included right coronary artery origin from the left sinus and left circumflex artery from the right sinus.
  • No significant difference in cardiac events or cardiovascular deaths between AAOCA and control groups.

Conclusions:

  • AAOCA is not associated with a worse mid-term prognosis in an adult population referred for CTA.
  • Interarterial course of anomalous coronary arteries did not correlate with increased cardiac events.

Keywords:
Computed tomography angiographyCoronary arteries anomalous aortic origin

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