There were five anomalous origin of left coronary artery in 7 patients,Two patients with endocardial fibroelastosis and left coronary artery fistula were mischecked.
Yet another is endocardial fibroelastosis, where fibrosis develops in the endocardium, the inner lining of the heart, as well as the subendocardium right under, again making the tissue less compliant.