Table 2.
Blood gas and hemoglobin levels of piglets in hypotensive groups.
| Parametera | Group (n=8) | Baseline | Hypoxia 42 mins | Asphyxia 5 mins | ROSC 1 hrs | ROSC 3 hrs | ROSC 6 hrs |
|---|---|---|---|---|---|---|---|
| pH | NT arrest | 7.45±0.04 | 7.29±0.07 | 6.88±0.11 | 7.48±0.06 | 7.48±0.05 | 7.51±0.06 |
| HT arrest | 7.45±0.05 | 7.32±0.05 | 6.84±0.08 | 7.38±0.13 | 7.51±0.08 | 7.42±0.04* | |
| NT sham | 7.45±0.05 | N/A | N/A | 7.44±0.05 | 7.43±0.06 | 7.44±0.05 | |
| HT sham | 7.46±0.10 | N/A | N/A | 7.44±0.05 | 7.44±0.09 | 7.37±0.05* | |
| PaCO2 | NT arrest | 41±5 | 42±3 | 92±18 | 35±7 | 44±4 | 39±5 |
| HT arrest | 41±3 | 43±7 | 109±16 | 43±4* | 40±7 | 50±7* | |
| NT sham | 38±5 | N/A | N/A | 40±6 | 40±6 | 38±2 | |
| HT sham | 37±7 | N/A | N/A | 40±5 | 38±7 | 48±5* | |
| PaO2 | NT arrest | 187±76 | 24±4 | 12±5 | 220±47 | 213±42 | 210±40 |
| HT arrest | 207±58 | 25±5 | 10±5 | 223±50 | 246±42 | 228±67 | |
| NT sham | 225±38 | N/A | N/A | 217±26 | 222±19 | 231±22 | |
| HT sham | 216±39 | N/A | N/A | 217±42 | 265±38 | 262±32 | |
| Hb | NT arrest | 7.0±1.3 | 7.5±1.6 | 6.7±1.1 | 6.6±2.2 | 7.0±0.8 | 6.1±1.2 |
| HT arrest | 6.3±1.3 | 6.9±0.9 | 7.7±1.9 | 6.7±0.4 | 6.8±1.2 | 7.5±1.8 | |
| NT sham | 6.1±1.4 | N/A | N/A | 6.3±1.9 | 5.9±2.0 | 5.6±1.6 | |
| HT sham | 6.7±1.6 | N/A | N/A | 7.6±1.3 | 7.3±1.4 | 7.8±1.7* |
a
Temperature-corrected blood gases presented during hypothermia. Hb, hemoglobin; HT, hypothermic; NT, normothermic; ROSC, return of spontaneous circulation; N/A, not applicable.
*
p<0.05 from normothermic group.