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Table 4 Comparison between responders and non-responders regarding inferior vena cava parameters (in mm) and collapsibility index of the studied patients

From: Inferior vena cava collapsibility index as a predictor of fluid responsiveness in sepsis-related acute circulatory failure

 

Responders

Non-responders

Test valuea

P value

Sig.

No.= 29

No.= 29

IVC min (baseline)

Mean ± SD

10.83 ± 3.28

13.62 ± 2.51

− 3.637

0.001

HS

Range

5–17

9–19

IVC max (baseline)

Mean ± SD

17.00 ± 2.84

18.59 ± 2.82

− 2.133

0.037

S

Range

12–23

13–24

IVCCI (baseline)

Mean ± SD

0.39 ± 0.11

0.27 ± 0.07

5.061

< 0.001

HS

Range

0.21–0.71

0.11–0.37

IVC min (after volume expansion)

Mean ± SD

14.21 ± 3.03

15.34 ± 1.88

− 1.720

0.091

NS

Range

7–20

12–18

IVC max (after volume expansion)

Mean ± SD

18.59 ± 2.64

20.83 ± 2.04

− 3.621

0.001

HS

Range

14–24

17–24

IVCCI (after volume expansion)

Mean ± SD

0.21 ± 0.11

0.26 ± 0.06

− 2.270

0.027

S

Range

0–0.43

0.15–0.43

  1. P value > 0.05: nonsignificant (NS); P value < 0.05: significant (S); P value < 0.01: highly significant (HS)
  2. IVC min: minimum inferior vena cava diameter during inspiration
  3. IVC max: maximum inferior vena cava diameter during expiration
  4. aIndependent t test