| Baseline | 12 hours | P value |
---|---|---|---|
Pulmonary artery occlusion pressure (mmHg) | Â | Â | 1.000 |
   Phenylephrine | 15 ± 2 | 17 ± 3* |  |
   Norepinephrine | 15 ± 2 | 17 ± 3* |  |
Right atrial pressure (mmHg) | Â | Â | 0.902 |
   Phenylephrine | 13 ± 3 | 15 ± 3* |  |
   Norepinephrine | 13 ± 3 | 14 ± 3* |  |
Mean pulmonary arterial pressure (mmHg) | Â | Â | 0.521 |
   Phenylephrine | 28 ± 9 | 33 ± 11* |  |
   Norepinephrine | 27 ± 5 | 30 ± 4* |  |
Pulmonary vascular resistance index (dyne·s/cm5/m2) |  |  | 0.330 |
   Phenylephrine | 293 ± 253 | 348 ± 296* |  |
   Norepinephrine | 235 ± 103 | 264 ± 105 |  |
Right ventricular stroke work index (g/m2/beat) | Â | Â | 0.564 |
   Phenylephrine | 9 ± 5 | 12 ± 7* |  |
   Norepinephrine | 8 ± 4 | 11 ± 4* |  |
Left ventricular stroke work index (g/m2/beat) | Â | Â | 0.721 |
   Phenylephrine | 25 ± 11 | 35 ± 14* |  |
   Norepinephrine | 25 ± 8 | 37 ± 9* |  |
Stroke volume index (g/m2/beat) | Â | Â | 0.963 |
   Phenylephrine | 45 ± 18 | 49 ± 19 |  |
   Norepinephrine | 46 ± 13 | 50 ± 11 |  |
Cardiac troponin I (ng/ml) | Â | Â | 0.854 |
   Phenylephrine | 1.0 ± 0.9 | 1.1 ± 0.9 |  |
   Norepinephrine | 0.9 ± 0.9 | 1.1 ± 0.8 |  |