Table 3 The median values and interquartile range of perfusion index (PI) and pleth variability index (PVI) values at different measurement points of surgery

Baseline

1.55

0.86–2.3

20.5

14–30.25

Preoxygenation

1.8

1.3–2.6

18.5

13–30.25

DS5

1.6

1–2.5

16

11–21

DL5

1.7

1.28–2.3

17

12–26

OLV1

1.3

0.61–1.3

16.5

11.75–23

OLV2

1.1

0.63–1.93

13.5

10–21.25

OLV5

1.3

0.64–1.93

14

10–20.25

OLV10

1.3

0.71–1.7

17

10.5–22.5

OLV15

1.25

0.76–2.1

15

10.25–21

OLV30

1.1

0.66–2

17

10–22

OLV45

1.3

0.82–2.1

14

8.5–20.5

OLV60

1.2

0.63–2.2

14

10–22

OLV90

1.1

0.73–2

13

8.5–18.75