Surgical repair of coronary sinus orifice atresia.

We report a 10-month-old boy who underwent a bi-directional Glenn procedure and repair of coronary sinus orifice atresia. The left superior vena cava was the only vessel communicating with the coronary sinus in this case. The coronary sinus was allowed to communicate freely with the left atrium by creating a partially unroofed coronary sinus using a left superior vena cava flap.