[A case of pure unroofed coronary sinus syndrome with persistent left superior vena cava].

A 36-year-old women with pure unroofed coronary sinus syndrome was reported. The anomalies of the cardiovascular system were absence of the coronary sinus, coronary sinus ASD and persistent left superior vena cava (PLSVC) draining into the left atrium. In this case, the PLSVC was ligated in the pericardium and the atrial septal defect was closed with a Dacron patch. There was no cerebral complication due to the increased intracranial pressure after ligation of the PLSVC. Postoperative coronary arteriography revealed absence of the coronary sinus in the venous phase.