Table II.
Physiological Parameters in Newborn Piglets During Repetitive Apnea with Resuscitation of 100% and Recovery Periods
| Conditions | PaO2 (mm Hg) | PaCO2 (mm Hg) | pH | Blood Pressure (mm Hg) |
|---|---|---|---|---|
| Control | 87 ± 2.5 | 36.7 ± 1.8 | 7.47 ± 0.01 | 91.8 ± 2 |
| Apnea 1 | 451.5 ± 43.4b | 42 ± 1.1 | 7.34 ± 0.02a | 87.5 ± 2.6 |
| Apnea 2 | 504.1 ± 13.5b | 42.6 ± 3.1 | 7.29 ± 0.02a | 85.2 ± 4.1 |
| Apnea 3 | 491.1 ± 16.8b | 40.5 ± 2.9 | 7.28 ± 0.03a | 82.7 ± 3.3 |
| Apnea 4 | 496.7 ± 12.6b | 39.2 ± 2 | 7.27 ± 0.04b | 85.7 ± 4.2 |
| Apnea 5 | 489.8 ± 22.6b | 39.1 ± 1.5 | 7.25 ± 0.03b | 83.8 ± 4.8 |
| Apnea 6 | 515.2 ± 12.3b | 37 ± 1.7 | 7.26 ± 0.03b | 83.2 ± 3.9 |
| Apnea 7 | 507.4 ± 15.3b | 36.5 ± 2 | 7.24 ± 0.03b | 83.4 ± 4.3 |
| Apnea 8 | 512.2 ± 17.5b | 37.4 ± 1.8 | 7.22 ± 0.04b | 85.8 ± 4.5 |
| Apnea 9 | 501.4 ± 12.6b | 36 ± 1.3 | 7.22 ± 0.03b | 85.7 ± 4 |
| Apnea 10 | 503.3 ± 16.4b | 35.4 ± 1 | 7.22 ± 0.02b | 82.5 ± 3.9 |
| Recovery, 1 h | 79.1 ± 2.6 | 34.8 ± 1.2 | 7.44 ± 0.01 | 75.7 ± 3.4 |
| Recovery, 2 h | 80.2 ± 2.9 | 35.5 ± 0.6 | 7.49 ± 0.01 | 78.1 ± 2.8 |
The values are the means ± SD for n = 7 experiments.
a
P < 0.05;
b
P < 0.005 for difference from pre-apnea conditions as determined by one-way analysis of variance with repeated measures by Wilcoxon signed-rank test.