Targeted Arterial Blood Gas Estimates and Hemodynamic Parameters
| Group | SBP (mm Hg) | HR (per min) | RPP (mm Hg/min × 103) | ||
| Intact (n = 10) | |||||
| PETCO2 (mm Hg) | PETO2 (mm Hg) | ||||
| Adenosine | 37.5 ± 2.9 | 119.9 ± 7.0 | 128.6 ± 16.8 | 99.6 ± 34.7* | 12.3 ± 4.9* |
| Hypercapnia | 60.6 ± 1.4* | 121.3 ± 5.8 | 130.2 ± 14.3 | 81.8 ± 16.8 | 10.9 ± 2.4 |
| Rest | 36.9 ± 1.6 | 118.3 ± 5.2 | 121.2 ± 12.1 | 65.4 ± 15.2 | 8.2 ± 2.3 |
| Stenosis (n = 7) | |||||
| PaCO2 (mm Hg) | PaO2 (mm Hg) | ||||
| Adenosine | 37.3 ± 2.2 | 128.0 ± 4.9 | 111.6 ± 32.2 | 119.8 ± 26.9* | 14.9 ± 6.1* |
| Hypercapnia | 61.6 ± 1.1* | 124.7 ± 5.6 | 118.1 ± 25.2 | 100.2 ± 22.8 | 12.5 ± 5.7* |
| Rest | 35.9 ± 3.4 | 126.1 ± 4.4 | 118.0 ± 30.5 | 75.4 ± 17.0 | 8.9 ± 2.9 |
| Caffeine (n = 5) | |||||
| PaCO2 (mm Hg) | PaO2 (mm Hg) | ||||
| Adenosine | 35.1 ± 0.6 | 123.7 ± 3.0 | 125.8 ± 8.0 | 65.4 ± 29.9 | 6.9 ± 1.7 |
| Hypercapnia | 59.9 ± 2.3* | 128.9 ± 6.8 | 128.3 ± 11.6 | 69.8 ± 10.8 | 9.3 ± 3.6 |
| Rest | 34.5 ± 1.2 | 125 ± 3.6 | 124.0 ± 11.2 | 56.6 ± 23.2 | 7.1 ± 4.0 |
↵* P < 0.05 in comparison to rest values.
SBP = systolic arterial blood pressure; HR = heart rate; RPP = rate–pressure product (mean arterial pressure × HR).