Table 2.
Supine | Beach Chair | ||||
---|---|---|---|---|---|
| |||||
Set Point 1 | Set Point 2 | Set Point 3 | Set Point 4 | Set Point 5 | |
Fio2 0.3 Petco2 30 mmHg |
Fio2 0.3 Petco2 30 mmHg |
Fio2 1.0 Petco2 30 mmHg |
Fio2 1.0 Petco2 45 mmHg |
Fio2 0.3 Petco2 30 mmHg |
|
Combined N=56 |
68 ± 12 | 61 ± 12 (p<0.001) |
66 ± 12 (p<0.001) |
75 ± 12 (p<0.001) |
65 ± 13 (p<0.001) |
Propofol N=29 |
67 ± 13 | 59 ± 13 (p<0.001) |
64 ± 14 (p<0.001) |
74 ± 12 (p<0.001) |
64 ± 14 (p<0.001) |
Desflurane N=27 |
69 ± 11 | 62 ± 10 (p<0.001) |
67 ± 11 (p<0.001) |
76 ± 11 (p<0.001) |
67 ± 12 (p<0.001) |
Fio2 = Fraction of inspired oxygen; Petco2 = partial pressure of end-tidal carbon dioxide
P-values represent comparison of successive set points within anesthetic type (ie: Set Point 1 compared to Set Point 2, Set Point 2 compared to Set Point 3, etc).