[Coronary-cavitary fistula. Embryogenesis and report of a case surgically treated].

The authors report the case of a 6-year-old female patient with congenital left coronary artery-right cardiac chamber fistula. The anomalous communication began at the left main coronary artery and extended to the top of the heart, throughout the myocardial muscle thickness. Diagnosis done by 2-D echocardiogram and cineangiography. The patient underwent to surgical treatment and both sides of the anomalous fistula was closed with pericardium bovinus patch. There was found no arterial ventricular branch originary of the fistulas course. The patient had a good post-operative outcome and there was no clinical or laboratorial evidences of myocardial ischemia.