Coronary artery aneurysms: A 25-patient study.

Area of Science:

• Cardiology
• Vascular Medicine
• Rheumatology

Background:

• Coronary artery aneurysm (CAA) is a rare condition involving abnormal coronary artery dilation.
• The incidence and characteristics of CAA in Asian populations are not well-defined.
• Potential causes include vasculitis, such as that associated with rheumatoid arthritis.

Purpose of the Study:

• To investigate the clinical demographics, catheterization findings, and outcomes of Asian patients with coronary artery aneurysms.
• To compare the incidence of CAA in Asian versus Caucasian populations.
• To assess the risk and management of nonobstructive coronary artery aneurysms.

Main Methods:

• Retrospective analysis of clinical data from an Asian patient cohort with diagnosed coronary artery aneurysms.
• Comparison of demographic and clinical features with published data from Caucasian populations.
• Evaluation of initial presentation, treatment strategies, and clinical outcomes, including myocardial infarction incidence.

Main Results:

• Lower incidence of coronary artery aneurysm in the Asian cohort (0.25%) compared to Caucasians (2.6%).
• Higher proportion of nonobstructive coronary artery aneurysms (70%) in the Asian cohort.
• Thirty percent of patients with nonobstructive CAA presented with myocardial infarction; none developed it while on preventive anticoagulant and antiplatelet therapy.

Conclusions:

• Coronary artery aneurysm incidence appears lower in Asians, but nonobstructive forms are prevalent.
• Nonobstructive coronary artery aneurysms require preventive medication to mitigate myocardial infarction risk.
• Medical management, including preventive therapy, supports long-term survival, with surgery reserved for significant stenosis.