We report two cases of congenital atresia of the ostium of the left coronary artery. Case 1: a six-month-old infant presenting with serious cardiac insufficiency. A noninvasive diagnosis of dilated myocardiopathy was established and the clinical picture was pharmacologically compensated. https://www.jmannino.com/great-save-Bang-XXL-Switch-Duo-2500-Puffs-7mL-amazing-save/