[A case of unroofed coronary sinus with mitral and tricuspid valve regurgitation].

A case of successfully treated unroofed coronary sinus associated with mitral and tricuspid valve regurgitation was reported. A 68 year-old male presented with congestive cardiac failure and pancytopenia due to hypersplenism. Investigation by cardiac catheterization and left ventricular angiography showed unroofed coronary sinus (left atrial to coronary sinus fenestration) combined with mitral and tricuspid valve regurgitation without persistent left superior vena cava. The atrial septum was intact. A large left-to-right shunt resulted in right heart failure. Direct suture closure of a coronary sinus defect and double valve replacements by using the SJM prosthetic valves were performed successfully.