Figure 3.

Schematic of (A) venovenous extracorporeal membrane oxygenation, typically used for respiratory failure with two-site cannulation, and (B) single-site dual-lumen cannulation showing common cannulation configurations and direction of blood flow. (dl) V_j-V = dual-lumen jugular venous drainage to venous return; ECMO = extracorporeal membrane oxygenation; F_SO₂ = sweep gas inlet oxygen fraction; IVC = inferior vena cava; SVC = superior vena cava; V_f-V_j = femoral venous drainage to jugular venous return; VV = venovenous. Modified from Figure 1 in Reference 11. Illustration by Jacqueline Schaffer.