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Clinical outcomes by angiographic type of spontaneous coronary artery dissection

Ricardo Mori1, Fernando Macaya, Federico Giacobbe

  • 1Hospital Clínico San Carlos, IdiSSC, Universidad Complutense de Madrid, Madrid, Spain.

Eurointervention : Journal of Europcr in Collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology
|March 2, 2021
PubMed

Insights

Spontaneous coronary artery dissection (SCAD) angiographic classification predicts adverse events. Angiotypes 2A and 3, indicating intramural hematoma, are linked to higher risks of myocardial infarction and revascularization.

Area of Science:

  • Cardiology
  • Vascular Medicine
  • Diagnostic Imaging

Background:

  • Spontaneous coronary artery dissection (SCAD) is a growing cause of myocardial infarction (MI).
  • Existing SCAD angiographic classifications lack defined clinical impact.
  • Understanding SCAD subtypes is crucial for patient management.

Purpose of the Study:

  • To assess the correlation between SCAD angiographic classification and adverse clinical events.
  • To evaluate the prognostic value of SCAD angiotypes in a large patient cohort.
  • To identify specific angiographic features associated with poor outcomes.

Main Methods:

  • An observational study involving 302 SCAD patients from 26 centers in Italy and Spain.
  • Classification of SCAD cases into five angiotypes based on the European Society of Cardiology guidelines.
  • Composite endpoint analysis including all-cause death, non-fatal MI, and unplanned revascularization.

Main Results:

  • Angiotypes 2A and 3 (circumscribed contained intramural hematoma) showed significantly higher 28-day composite outcomes (20.0% vs 5.4%, p<0.001).
  • This increased risk persisted during follow-up (24.5% vs 9.9%, p=0.001), driven by non-fatal MI and unplanned revascularization.
  • Angiotype 2A or 3 independently predicted a higher incidence of adverse events (adjusted HR 2.44, p=0.010).

Conclusions:

  • The SCAD angiographic classification is a significant predictor of clinical outcomes.
  • Patients with angiotypes 2A and 3 face an elevated risk of short-term and sustained adverse cardiovascular events.
  • This classification aids in risk stratification and guiding management strategies for SCAD patients.
Abstract

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