Table 1.
Baseline Variables and Characteristics of CPR
| Variable | NC | O2_CPR | O2_CPR+Postresuscitation | O2_Postresuscitation |
|---|---|---|---|---|
| Body weight, g | 352.1±15.6 | 353.3±29.5 | 352.6±19.7 | 353.0±20.1 |
| Heart rate, bpm | 400.2±41.2 | 401.8±30.5 | 389.4±18.8 | 391.5±34.8 |
| Temperature, °C | 37.4±0.3 | 37.4±0.2 | 37.4±0.3 | 37.4±0.3 |
| MAP, mm Hg | 122.8±7.5 | 121.1±13.4 | 119.7±9.4 | 118.5±9.3 |
| LVEF, % | 83.6±4.3 | 83.4±2.9 | 82.9±4.6 | 82.9±5.7 |
| CPR duration, s | 217.8±30.3 | 213.7±27.7 | 208.8±29.3 | 212.8±24.0 |
| Number of shocks, n | 1.6±1.0 | 1.7±0.7 | 1.6±1.1 | 1.4±0.6 |
| Total epinephrine, μg | 22.3±10.2 | 19.5±7.6 | 17.3±6.4 | 18.2±6.2 |
| ROSC rate, % | 100 | 100 | 100 | 100 |
Data are shown as mean±SD. n=16/group. CPR indicates cardiopulmonary resuscitation; MAP, mean arterial pressure; NC, normoxic control; O2_CPR, ventilated with 100% O2 during CPR; O2_CPR+postresuscitation, ventilated with 100% O2 during CPR and the first 3 hours of postresuscitation; O2_postresuscitation, ventilated with 100% O2 during the first 3 hours of postresuscitation; and ROSC, return of spontaneous circulation.