Table 2 Cuff variables and ventilation variables for LTS-D

After blocking with recommended volume

Cuff pressure [cmH₂O]

120 [110–120]

110 [85–120]

105 [90–120]

0.35

Cuff volume [ml]

60 [60–60]

80 [80–80]

90 [90–90]

<0.001

Tidal volume [ml]

389 [366–559]

482 [449–559]

640 [613–672]

<0.001

Peak pressure [cmH₂O]

11 [9.8–16.5]

13 [12–16]

11.5 [11–13.3]

0.14

Cuff pressure controlled to 60 cmH₂O

Cuff pressure [cmH₂O]

60 [60–60]

60 [60–60]

60 [60–60]

1

Cuff volume [ml]

47 [43.5–53.8]

70 [65–72.5]

77 [74.5–82]

<0.001

Removed cuff volume [ml]

13 [6–17]

10 [8–15]

13 [8–16]

0.61

Tidal volume [ml]

388 [364–424]

479 [443–532

656 [617–694]

<0.001

Peak pressure [cmH₂O]

12.5 [9.8–16.86]

13 [12–16]

11.5 [11–14]

0.26

Cuff pressure controlled to 50 cmH₂O

Cuff pressure [cmH₂O]

50 [50–50]

50 [50–50]

50 [50–50]

1

Cuff volume [ml]

47 [28–54.6]

65 [60–70]

74 [68.5–78]

<0.001

Removed cuff volume [ml]

13 [5–32]

15 [10–20]

16 [12–22]

0.49

Tidal volume [ml

366 [312–397]

477 [442–518]

665 [627–702]

<0.001

Peak pressure [cmH₂O]

12.5 [9.8–16.8]

13 [11–16]

12 [11–14]

0.53

Cuff pressure controlled to 40 cmH₂O

Cuff pressure [cmH₂O]

40 [40–40]

40 [40–40]

40 [40–40]

1

Cuff volume [ml]

49 [40–54]

60 [56–65]

68 [64–74]

<0.01

Removed cuff volume [ml]

11 [6–20]

20 [15–25]

22 [17–27]

0.09

Tidal volume [ml

352 [336–402]

467 [433–528]

649 [622–689]

<0.001

Peak pressure [cmH₂O]

13 [9–18]

13 [11–16]

12 [11–14.5]

0.72

Cuff pressure controlled to 30 cmH₂O

Cuff pressure [cmH₂O]

30 [30–30]

30 [30–30]

30 [30–30]

1

Cuff volume [ml]

40 [35–45]

55 [52–60]

65 [55.8–67.3]

<0.01

Removed cuff volume [ml]

20 [15–25]

25 [20–28]

25 [23–34]

0.15

Tidal volume [ml]

347 [335–401]

460 [434–527]

644 [583–668]

<0.001

Peak pressure [cmH₂O]

13 [9–18]]

12 [11–15]

12 [10.3–14]

0.68