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Table 4 Central venous pressure expressed in mmHg in the three study groups

From: Acute hypervolemic hemodilution combined with controlled hypotension to minimize blood loss during operations of spine fusion: remifentanil versus magnesium sulfate

 

Group I

(N = 18)

Group II

(N = 20)

Group III

(N = 19)

p value

Baseline

7.21 ± 1.12

7.32 ± 1.23

6.96.1 ± 1.42

0.402

5 min after AHH start

7.32 ± 1.23

7.21±1.12

7.30 ± 1.27

0.961

10 min after AHH start

7.87 ± 1.92

7.32 ± 1.30

6.99 ± 1.13

0.096

15 min after AHH start

8.31±1.52*

6.98 ± 1.43

6.77 ± 1.33

0.002

30 min after AHH start

8.68 ± 1.41*

7.01 ± 1.52

6.68 ± 1.48

0.0002

45 min after AHH start

8.94 ± 1.37*

6.92 ± 1.31

7.15 ± 1.19

0.0009

60 min after AHH start

8.21 ± 1.83*

6.56 ± 1.87

6.62 ± 1.25

0.0103

90 min after AHH start

7.78 ± 1.32*

7.31 ± 1.28

6.87 ± 1.19

0.0317

2 h after AHH start

7.53 ± 1.21

6.98 ± 1.29

7.08 ± 1.51

0.1902

3 h after AHH start

7.61 ± 1.18

7.15 ± 1.34

7.41 ± 1.19

0.6111

  1. -Data are presented as mean ± SD. p < 0.05 is considered significant.
  2. -*Significant in group I, in relation to group II and group III