Abstract
BackgroundCoronary artery aneurysm (CAA) is occasionally detected on a small percentage of coronary angiography or multi-detector computed tomography (MDCT). CAA itself is considered benign entity despite the potential risks of rupture, thromboembolism, and compression of surrounding structures. However, the optimal management including other vascular comorbidity has yet to be fully clarified. ObjectiveThe aim of this study was to evaluate cardiovascular events in the patients with CAA in the observational group. MethodsBetween January 2010 and August 2015, 48 CAAs were identified in 37 patients out of consecutive 10,010 patients (0.37%) by MDCT. Twenty-eight patients treated conservatively were included in this study. Their major adverse cardiovascular events (MACE) were evaluated retrospectively: death, non-fatal myocardial infarction (MI), revascularizations; coronary artery bypass grafting (CABG) and percutaneous coronary intervention (PCI), and other vascular events. ResultsThe average age was 62.0±15.5year sold, and median follow-up period was 49.6months (IQR 23.6 to 78.1). Mean CAA diameter was 7.5±2.8mm. Twenty-two MACE occurred in 15 patients (53.6%): 1 sudden death, 4 MI, 1 CABG for CAA, 3 PCI for CAA, 7 PCI for non-CAA lesions, and 6 other vascular treatments for aorta and cerebral and peripheral artery. Follow-up MDCT was performed for 22 CAAs in 16 patients. In 9 CAAs of them, the maximal diameter increased significantly (Δ diameter: 1.5±1.1mm). ConclusionsPresence of CAA may be associated with adverse vascular events including non-coronary diseases. This study could suggest the management for CAA should include the evaluation of not only CAA itself but also other vascular diseases.
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