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Revista chilena de cardiología

On-line version ISSN 0718-8560

Abstract

FUENSALIDA, Alberto et al. Compared to usual coronary artery disease risk factors are different in those with coronary ectasia. Rev Chil Cardiol [online]. 2016, vol.35, n.2, pp.118-126. ISSN 0718-8560.  http://dx.doi.org/10.4067/S0718-85602016000200004.

Background: Coronary ectasia (CE) is an uncommon condition where coronary artery dilatation coexists with atherosclerotic plaques. It may present as either acute or chronic syndromes even in the absence of coronary artery stenosis. Differences in risk factors associated to CE compared to those associated to usual CAD have been described. Methods: We retrospectively analyzed coronary arteriograms performed between June 2009 and July 2015. CE was defined as the presence of dilatation >1.5 times the diameter of the unaffected vessel. Cardiovascular risk factors were compared in CE vs a random sample of non-CE patients. Results: Out of 9648 coronary arteriograms 64 showed CE (9.5%). Compared to controls, CE patients were males, younger and hat lower prevalence or hypertension, diabetes and hyperlipidemia. CE was present in all 3 main vessels in 83.3% of CE patients and co-existed with significant stenosis in only 28%. Multivariate analysis showed that significant differences in risk factors were age <55 years (OR: 2.63; CI: 1.4 to 4.9, p <0.05), obesity (OR: 3 2; CI: 1.7 to 5.8, p <0.05) and hyperlipidemia (OR: 0.09; CI: 0.016 to 0.54). In patients presenting with an acute coronary syndrome, those with CE were younger (45,9 years; SD: 5,9 v/s 48,8 years; SD: 5,3; p=0,02), y and a lower prevalence or hyperlipidemia (OR:0,2; IC:0,06-0,7, p=0,01). Conclusion: CE is an infrequent condition in CAD. It may me associated to either acute or chronic syndromes. They are younger, have a lower prevalence of dyslipidemia suggesting that risk factors other than traditionally recognized in obstructive CAD influence de development of CE.

Keywords : coronary artery disease; ectasia; athe-rosclerosis; aneurysm; coronary angiography.

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