Abstract
Coronary artery ectasia (CAE) is a localized or diffuse abnormal dilatation of coronary arteries. Controversy still remains about its cardiovascular events rate, prognosis, and etiology. Adverse effects of CAE coinciding with coronary artery stenosis (CAS) (and in isolated form) are unclear. We aimed to investigate the cardiovascular event rate of CAE in comparison to 'CAS only', and comparing their etiology. This cross-sectional study was conducted on 200 patients between May 2011 and June 2012. Of them, 40 had CAE (case group) and 160 had only CAS (control group). Patients with CAE were divided into 2 subgroups according to the absence (E1) or presence (E2) of CAS. They were followed up for at least 6 month for cardiovascular events, including death, unstable angina and myocardial infarction (MI). Finally, we compared findings in CAE, CAS, and E1 and E2 subgroups and evaluated the relationship between severity of ectasia (1-1.5 times, 1.5-2 times, and > 2 times) and CAS. Hypertension (HTN), dyslipidemia (DLP), and male sex were matched in both groups without significant difference. Cigarette smoking (C/S) was significantly higher and diabetes mellitus (DM) was significantly lower in CAE compared to CAS patients. A subgroup of...Continue Reading
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