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Author Spotlight: Enhancing Coronary Artery Revascularization
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Author Spotlight: Enhancing Coronary Artery Revascularization

Published on: September 15, 2023

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Clinical outcomes in spontaneous coronary artery dissection

Marcos Garcia-Guimaraes1,2, Monica Masotti3, Ricardo Sanz-Ruiz4,5,6

  • 1Department of Cardiology, Hospital del Mar, Barcelona, Spain.

Heart (British Cardiac Society)
|April 12, 2022
PubMed

Insights

Spontaneous coronary artery dissection (SCAD) is a rare cause of heart attack. This study found that while SCAD prognosis is generally favorable, reinfarctions and unplanned revascularizations are common adverse events.

Area of Science:

  • Cardiology
  • Vascular Medicine
  • Clinical Research

Background:

  • Spontaneous coronary artery dissection (SCAD) is an uncommon cause of acute coronary syndrome (ACS).
  • Understanding long-term adverse events in SCAD patients is crucial for effective management.

Purpose of the Study:

  • To assess the incidence and predictors of major adverse cardiovascular and cerebrovascular events (MACCE) in a nationwide prospective cohort of SCAD patients.
  • To identify factors associated with adverse outcomes following SCAD.

Main Methods:

  • Prospective nationwide cohort study (SR-SCAD) including 389 patients from 34 hospitals.
  • Standardized angiogram analysis and expert adjudication for SCAD diagnosis.
  • Predefined composite endpoint (MACCE) including death, myocardial infarction, unplanned revascularization, SCAD recurrence, or stroke, assessed by a Clinical Events Committee.

Main Results:

  • The cohort comprised mostly women (88%) with a median age of 53 years.
  • Type 2 intramural hematoma (IMH) was the most frequent angiographic pattern (61%).
  • At a median follow-up of 29 months, 13% of patients experienced MACCE, primarily driven by reinfarctions (7.6%) and unplanned revascularizations (6.2%).

Conclusions:

  • SCAD patients have an overall favorable prognosis, but reinfarctions and unplanned revascularizations are significant concerns.
  • Independent predictors of MACCE included a history of hypothyroidism, proximal vessel involvement, type 2 IMH, and dual antiplatelet therapy (DAPT) at discharge.
Abstract

Keywords:
acute coronary syndromecoronary stenosismyocardial infarction

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