Arterial PCO2 values measured throughout the long-term facilitation protocol in experimental groups
| Experimental group PaCO2(mmHg) | Baseline | Hypoxic stimulus (FiO2 = 0.11) | 30 min posthypoxic | 60 min posthypoxic |
|---|---|---|---|---|
| Hyperoxic control | 45 | 46 | 45 | 45 |
| (n = 7) | (1.4) | (1.8) | (1.5) | (1.5) |
| Control | 45 | 45.2 | 44 | 45 |
| (n = 13) | (1.0) | (0.9) | (1.0) | (1.0) |
| Sham-operated | 42.8 | 45.0* | 42.2 | 43.0 |
| (n= 6) | (0.7) | (0.8) | (0.6) | (0.4) |
| Bilateral cervical dorsal | 42.7 | 44 | 42 | 42.4 |
| rhizotomy (n = 6) | (0.8) | (1.0) | (1.0) | (0.7) |
| Bilateral cervical dorsal | 46 | 44 | 46 | 46 |
| rhizitomy + ketanserin | (1.2) | (1.8) | (1.2) | (1.2) |
| (n = 6) |
At all posthypoxic time points, PaCO2 was actively maintained within 1 mmHg of the baseline value or respiratory nerve activities were not included in the analysis. Data presented as means; corresponding SE values are in parentheses.
*Different from baseline (p < 0.05).