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Figure 1: Atrial incision. Aortic and bicaval venous cannulation has been accomplished. The aorta has been cross-clamped, and cold blood cardioplegia is being administered. The caval tapes have been snared. The dotted line indicates the medial right atrial incision. This incision extends from the right atrial appendage, parallel to the right AV groove and the right coronary artery. Note that the most inferior extent of the incision is between the inferior vena cava (IVC) and the right coronary artery and coronary sinus. This incision allows excellent mobilization of the ventricle and resultant exposure of the AV valves. RA, right atrium; SVC, superior vena cava. (Reprinted with permission: Backer CL, Mavroudis C. Atrioventricular Canal Defects. In: Mavroudis C, Backer CL, [eds]: Pediatric Cardiac Surgery, 3rd ed., Philadelphia, 2003, Mosby)

Figure 1: Atrial incision. Aortic and bicaval venous cannulation has been accomplished. The aorta has been cross-clamped, and cold blood cardioplegia is being administered. The caval tapes have been snared. The dotted line indicates the medial right atrial incision. This incision extends from the right atrial appendage, parallel to the right AV groove and the right coronary artery. Note that the most inferior extent of the incision is between the inferior vena cava (IVC) and the right coronary artery and coronary sinus. This incision allows excellent mobilization of the ventricle and resultant exposure of the AV valves. RA, right atrium; SVC, superior vena cava. (Reprinted with permission: Backer CL, Mavroudis C. Atrioventricular Canal Defects. In: Mavroudis C, Backer CL, [eds]: Pediatric Cardiac Surgery, 3rd ed., Philadelphia, 2003, Mosby)