Baseline hemodynamic data in neonates with an increase (Group 1) or fall (Group 2) in cardiac output after dopamine therapy
| Group 1 (n = 10) | Group 2 (n = 4) | p Value | |
|---|---|---|---|
| Mean blood pressure (mm Hg) | 26 (1) | 24 (2) | 0.2 |
| Heart rate (beats/min) | 148 (7) | 149 (4) | 0.9 |
| Left ventricular output (ml/min/kg) | 205 (25) | 218 (43) | 0.8 |
| Systemic vascular resistance (mm Hg/l/min/kg) | 150 (25) | 127 (33) | 0.6 |
| Anterior cerebral mean blood velocity (cm/s) | 10.3 (1.6) | 9.7 (1.9) | 0.8 |
| Anterior cerebral flow velocity-time integral (cm) | 4.3 (0.8) | 4.1 (0.8) | 0.9 |
| Anterior cerebral resistance index (mm Hg/cm) | 7.4 (0.8) | 6.6 (1.4) | 0.6 |
| Superior mesenteric mean blood velocity (cm/s) | 23.9 (2.8) | 31.7 (6.6) | 0.2 |
| Superior mesenteric flow velocity-time integral (cm) | 9.8 (1.4) | 12.3 (2.8) | 0.4 |
| Superior mesenteric resistance index (mm Hg/cm) | 3.0 (0.4) | 2.4 (0.5) | 0.2 |
Values are expressed as mean (SE).