Table 1.
Hemodynamic measures from left and right heart catheterization with vasodilator testing
| Room air | Nitric Oxide (40 ppm) plus 100% O2 | |
|---|---|---|
| Heart rate, beats per minute | 107 | 105 |
| Mean right atrial pressure, mmHg | 18 | 14 |
| Pulmonary artery pressure (mean), mmHg | 72/30 (44) | 72/34 (47) |
| Mean pulmonary artery occlusion pressure, mmHg | 11 | 15 |
| Aortic pressure (mean), mmHg | 92/61 (72) | 108/64 (80) |
| Left ventricle end-diastolic pressure, mmHg | 10 | – |
| Arterial blood gas, pH/pCO2/pO2 | 7.45/32/66 | 7.42/39/344 |
| Arterial oxygen saturation, % | 92.1 | 99.1 |
| Mixed venous oxygen saturation, % | 43.4 | 59.6 |
| Cardiac indexa, L/min/m2 | 1.5 | 1.6 |
| Pulmonary vascular resistance, Wood units | 12.4 | 11.1 |
a Calculated by the Fick method using a measured hemoglobin of 11.1 g/dL and estimated VO2 (mL/min/m2)