Mean artery pressure in

mm of Hg (mean +/− sd)

Group A

Group B

Group C

P value Within the groups from baseline to 12 hrs after

shifting to icu

P value between

the groups

Baseline

53.90 ± 8.51

52.53 ± 5.60

53.53 ± 6.18

0.065

*1.00

Skin incision

51.30 ± 6.22

52.03 ± 6.21

54.23 ± 6.81

2 hrs after shifting to icu

52.37 ± 5.33

54.97 ± 5.61

54.13 ± 6.43

†1.00

4 hrs after shifting to icu

56.47 ± 6.51

57.43 ± 4.60

54.47 ± 5.90

6 hrs after shifting to icu

55.43 ± 5.96

55.90 ± 7.04

53.47 ± 5.37

‡0.524

12 hrs after shifting to icu

54.53 ± 6.25

55.31 ± 5.30

52.27 ± 7.28