Factors Associated With Revascularization in Women With Spontaneous Coronary Artery Dissection and Acute Myocardial...

Area of Science:

• Cardiology
• Vascular Medicine
• Interventional Cardiology

Background:

• Spontaneous coronary artery dissection (SCAD) is a less common cause of acute myocardial infarction (AMI) compared to atherosclerosis.
• Conservative management is often preferred for SCAD-related AMI, unlike atherosclerotic AMI.
• Understanding factors influencing treatment strategy is crucial for optimizing patient care.

Purpose of the Study:

• To investigate factors associated with the treatment strategy (revascularization vs. conservative therapy) for SCAD in women with AMI.
• To identify clinical and demographic predictors of choosing revascularization over conservative management for SCAD-related AMI.

Main Methods:

• Retrospective analysis of women aged ≤60 years with AMI and SCAD using the Nationwide Readmissions Database (2010-2015).
• Patients were categorized into revascularization and conservative therapy groups.
• Multivariable logistic regression and propensity-score matched analyses were employed to identify associated factors and compare outcomes.

Main Results:

• The revascularization group (68.0%) more frequently presented with ST-elevation AMI (STEMI) and cardiogenic shock compared to the conservative group (32.0%).
• Anterior STEMI, inferior STEMI, and cardiogenic shock were strongly associated with revascularization.
• Factors like diabetes, dyslipidemia, smoking, renal failure, pregnancy, fibromuscular dysplasia, and hospital type also influenced treatment decisions. No significant differences in in-hospital death, 30-day readmission, or recurrent AMI were found between groups.

Conclusions:

• Treatment strategy for SCAD-related AMI in women is influenced by STEMI presentation, hemodynamic instability, comorbidities, and hospital setting.
• Further research is needed to determine which SCAD patients benefit most from revascularization versus conservative therapy.