Skip to main content

Table 2 Inferior vena cava and portal vein measures

From: The effect of gravity-induced preload change on the venous excess ultrasound (VExUS) score and internal jugular vein Doppler in healthy volunteers

 

Supine

Head up

Head down

IVCEE

IVC%

SIIVC

PIPORTAL

IVCEE

IVC%

SIIVC

PIPORTAL

IVCEE

IVC%

SIIVC

PIPORTAL

Mean

1.18

43.57

0.56

24.35

1.44

28.3

0.49

17.18

1.36

32.83

0.60

24.84

Stdev

0.51

23.78

0.16

7.45

0.50

14.54

0.19

18.45

0.51

17.54

0.15

11.86

Supine versus head-up

Supine versus head-down

Head-up versus head-down

IVCEE

IVC%

SIIVC

PIPORTAL

IVCEE

IVC%

SIIVC

PIPORTAL

IVCEE

IVC%

SIIVC

PIPORTAL

+ 0.25*

− 15.27

− 0.07

− 7.16

+ 0.17

− 10.74

+ 0.04

+ 0.49

− 0.08

+ 4.53

+ 0.11

+ 7.66

  1. p < 0.01*
  2. Venous measures and their change with preload. All values represent absolute change. IVCEE is end-expiratory IVC diameter in centimeters, IVC% is the inspiratory collapse of the IVC, SIIVC is the sphericity index of the IVC and PIPORTAL is the pulsatility index of the portal vein in %