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Table 1 The difference of oxygen saturation between IVC-FA and other approaches of cannulation

From: Superior vena cava drainage improves upper body oxygenation during veno-arterial extracorporeal membrane oxygenation in sheep

  SVC-FA IVC-CA FA-IJV
SVC 30.9 ± 0.5 39.6 ± 1.7* 46.4 ± 1.4*
PA 40.2 ± 1.4 38.3 ± 1.2 22.0 ± 0.4*#
Aorta 40.3 ± 0.9 63.9 ± 1.3* 22.1 ± 0.6
IVC −1.3 ± 0.9 −18.8 ± 1.8* −7.6 ± 0.7*#
  1. The SO2 values in IVC-FA were considered as basal level. The difference of oxygen saturation (ΔSO2) was obtained by subtracting the basal SO2 values from the SO2 values in SVC-FA, IVC-CA and FA-IJV, respectively. Basal levels were similar among sheep shifted to different cannulation. * P <0.01 vs. SVC-FA; # P <0.05 vs. IVC-CA; § P <0.01 vs. IVC-CA. FA-IJV: an additional return cannula was added into the internal jugular vein on the basis of femoral veno-arterial extracorporeal membrane oxygenation; IVC: inferior vena cava; IVC-CA: a drainage cannula was inserted into the inferior vena cava and a return cannula was inserted into the carotid artery; IVC-FA: a drainage cannula was placed into the inferior vena cava through the femoral vein and a return cannula was inserted into the femoral artery; PA: pulmonary artery; SO2: oxygen saturation; SVC: superior vena cava. SVC-FA: a drainage cannula was placed into the superior vena cava through the femoral vein and a return cannula was placed into the femoral artery.