Table 2

Parameters among different modes (n = 38)


VC
PC
PS
p


Mean ± SD
Mean ± SD
Mean ± SD



Tidal volume (ml)
492 ± 86
479 ± 100
439 ± 137
NS
PIP (mm H2O)
28 ± 10
25 ± 7
22 ± 8
< 0.05a
Respiratory rate (breaths per minute)
21 ± 6
22 ± 6
23 ± 9
NS
Breaths per minute above set respiratory rate
8.0 ± 6.3
8.3 ± 6.3
N/A
NS
Oxygen saturation (percentage)
96 ± 4
96 ± 4
96 ± 3
NS
Heart rate (beats per minute)
90 ± 14
94 ± 14
95 ± 13
NS
Blood pressure (mm Hg)
132/74 ± 23/17
132/75 ± 28/18
131/74 ± 28/19
NS

aPIP differed among all three modes. N/A, non-applicable; NS, not significant; PC, assist pressure control; PIP, peak inspiratory pressure; PS, pressure support; SD, standard deviation; VC, assist volume control.

Dellinger et al. Critical Care 2007 11:R26   doi:10.1186/cc5706