Fig. 1From: Tunneled right atrial two-stage cannulation in aortic surgery via ministernotomyA Medtronic MC2™ two-stage venous cannula (flat body or low profile body). B Venous cannula externalized from the chest. C The right atrial appendix was retracted; the aortic root exploration was achieved better (blue arrow). The red arrows show the exit point of the venous cannula from the right thoracic wallBack to article page