Table 3 Relative changes after phenylephrine administration

Relative change from post-induction hypotension to 1 min

Heart rate

0.946 ± 0.08

0.930 ± 0.05

0.48

Systolic arterial pressure

1.383 ± 0.22

1.371 ± 0.18

0.85

Diastolic arterial pressure

1.412 ± 0.24

1.448 ± 0.26

0.64

Mean arterial pressure

1.409 ± 0.24

1.386 ± 0.19

0.74

Pulse pressure

1.356 ± 0.21

1.304 ± 0.17

0.40

Cardiac output

0.947 ± 0.17

0.941 ± 0.10

0.89

Stroke volume

0.999 ± 0.15

1.010 ± 0.09

0.77

Stroke volume variation

1.001 ± 0.09

1.139 ± 0.36

0.10

Pulse pressure variation

1.017 ± 0.15

1.113 ± 0.25

0.13

Perfusion Index

0.794 ± 0.21

0.844 ± 0.25

0.49

Pleth variability index

1.080 ± 0.40

0.981 ± 0.56

0.51

Total peripheral resistance

1.56 ± 0.53

1.50 ± 0.31

0.64

Dynamic arterial elastance

1.01 ± 0.13

1.01 ± 0.23

0.99

Relative change from post-induction hypotension to 2 min

Heart rate

0.888 ± 0.10

0.916 ± 0.56

0.28

Systolic arterial pressure

1.583 ± 0.43

1.530 ± 0.27

0.64

Diastolic arterial pressure

1.532 ± 0.39

1.527 ± 0.27

0.96

Mean arterial pressure

1.570 ± 0.42

1.545 ± 0.27

0.79

Pulse pressure

1.649 ± 0.54

1.540 ± 0.28

0.43

Cardiac output

0.985 ± 0.22

0.959 ± 0.11

0.64

Stroke volume

1.104 ± 0.20

1.047 ± 0.10

0.27

Stroke volume variation

0.768 ± 0.22

0.985 ± 0.20

0.002

Pulse pressure variation

0.768 ± 0.31

1.087 ± 0.38

0.005

Perfusion Index

0.967 ± 0.33

0.877 ± 0.21

0.32

Pleth variability index

1.188 ± 0.35

1.180 ± 0.90

0.97

Total peripheral resistance

1.74 ± 0.82

1.64 ± 0.35

0.62

Dynamic arterial elastance

0.98 ± 0.22

1.11 ± 0.31

0.15