Résumé
Background: Localized or widespread non-obstructive lesions of the epicardial coronary arteries, with a luminal dilatation 1.5 times that of the neighbouring normal segments or vessel diameter, have been identified as CAE. This research was performed to determine prevalence and predictors of CAE among Delta population in Egypt. Methods: This cross-sectional research was conducted on 2850 cases over the age of 18 who came for coronary angiography with positive non-invasive diagnostic tests, acute coronary syndrome and stable CAD. Cases were divided into two groups Group I: CAE cases (n =108) and Group II Non-ectasia cases (n =2742). All cases were subjected to history taking, clinical examination, laboratory investigations, standard 12-leads ECG, resting transthoracic echocardiography (TTE) and coronary angiography. Results: CAE occurred in 108 (3.79%) of the studied cases. Total cholesterol level, serum creatinine, were insignificantly different between both groups. CRP, NLR, MPV, and PLR, were significantly higher in CAE cases versus non-Ectasia cases CRP, NLR, PLR, and MPV is a good predicator for CAE, LVESD and LVEDD, were significantly higher in CAE group. Conclusions: The RCA was the most often affected coronary artery. The existence of CAE can be predicted using easily accessible clinical laboratory values such as CRP, Neutrophil to lymphocyte ratio, mean platelet volume, and platelet to lymphocyte ratio.