Variablea
Pre-extubation (n=94) 24 hrs. post re-intubation (n=86) 72 hrs. post re-intubation (n=72)
P Value
VI
5.60 (4.43-8.14)
13.10 (9.36-19.20)
11.43 (7.82-16.40)
<.001b <.001c
RSS
1.64 (1.40-1.90)
2.24 (1.60-3.08)
1.79 (1.48-2.62)
<.001b <.001c
PIP (cm H2O)
14 (14-16)
16 (14-17)
16 (14-16)
<.001b <.001c
Ventilator rate (per minute)
15 (14-18)
26 (22-35)
22 (18-31)
<.001b <.001c
MAP (cm H2O)
6.2 (5.6-6.9)
7.1 (6.2-7.9)
6.8 (6.0-7.7)
<.001b <.001c
Fio2 (%)
25 (21-30)
30 (25-38)
28 (23-35)
<.001b .04c
pH
7.34 (7.29-7.37)
7.32 (7.26-7.37)
7.30 (7.25-7.35)
.04b .007c
Pco2 (mmHg)
38 (33-45)
45 (38-52)
46 (42-51)
<.001b <.001c