Table 2.
Peak pressure (Ppeak), heart rate (HR), and mean arterial pressure (MAP) over time.
| Group | 0 | 10 minutes | 30 minutes | 1 hour | 2 hours | 3 hours | |
|---|---|---|---|---|---|---|---|
| Ppeak (kpa) | Sham | 1.64±0.16 | 1.69±0.18 | 1.63±0.11 | 1.67±0.09 | 1.68±0.11 | 1.68±0.12 |
| 1.0 FiO2 | 1.65±0.26 | 2.05±0.23* | 2.04±0.27* | 2.10±0.32* | 2.05±0.39* | 2.13±0.43* | |
| 0.6 FiO2 | 1.68±0.07 | 1.91±0.13* | 1.94±0.09* | 1.93±0.17* | 1.96±0.21* | 1.97±0.13* | |
| HR (/minute) | Sham | 241±28 | 236±26 | 227±19 | 222±20 | 208±25 | 209±25 |
| 1.0 FiO2 | 225±21 | 234±23 | 236±16 | 221±13 | 214±29 | 199±28 | |
| 0.6 FiO2 | 243±13 | 223±14 | 227±16 | 218±13 | 219±30 | 207±29 | |
| MAP (mmHg) | Sham | 77±10 | 78±14 | 78±12 | 76±14 | 76±11 | 77±13 |
| 1.0 FiO2 | 69±12 | 74±12 | 72±12 | 73±11 | 71±11 | 73±8 | |
| 0.6 FiO2 | 76±12 | 72±11 | 74±10 | 76±10 | 79±9 | 79±11 |
Data are expressed as mean±SD (standard deviation). n = 10 in the sham and 1.0 FiO2 group, and n = 7 in the 0.6 FiO2 group. * P < 0.05 vs. the sham group.