Fig. 2

a Intra-operative view with Superior Vena Cava (SVC) draining into the Left Atrium (LA), The Aorta (Ao) is pulled with the left forceps and the Right Atrial appendage (RAA) is pulled with the right forceps. An arrow on the right angle (surgeon side) pointing toward the head of the patient. b Intra-operative view showing the right-angle forceps separating a small accessory channel originating from the SVC, the channel drains to the right atrium while the main SVC is draining to the left Atrium. An arrow on the right angle (surgeon side) pointing toward the head of the patient