Fig. 3.

(A) Peripheral venous (VV) ECMO: The venous drainage cannula is inserted via the femoral vein into the IVC, tip positioned at the IVC-RA junction. The oxygenated blood is returned via the cannula inserted into the contralateral femoral vein and positioned in the mid RA. (B) Peripheral VV-ECMO: The venous drainage cannula inserted via the femoral vein and positioned at the IVC-RA junction and the oxygenated blood is returned through the cannula inserted via the internal jugular vein and positioned in the mid RA. (C) VV-ECMO by dual lumen cannula: The dual lumen cannula with multiple orifices is inserted via the internal jugular vein and positioned such that the orifices in the SVC and IVC. The oxygenated blood is returned through the same cannula via another lumen that opens and faces the tricuspid valve. The oxygenated blood is thus directed towards the tricuspid valve into the RV