Figure 2.

Overhead view of operating field: a: Intraaortic view: 1: venous canula; 2: aortic clamp; 3: inside of aortic wall; asterisk: penetration defect of the non-coronary sinus. b: Intraatrial view: 1: venous canula; 2: aortic clamp; 4: ascending aorta; 5: right atrial appendage; asterisk: septal device and penetration defect of the left atrial roof.