Demographic data and dopamine infusion rate in neonates with an increase (group I) or fall (group II) in cardiac output after dopamine
| Group 1 (n = 10) | Group 2 (n = 4) | p Value | |
|---|---|---|---|
| Birthweight (g) | 967 (74) | 930 (187) | 0.8 |
| Gestational age (weeks) | 27 (0.7) | 26 (1.7) | 0.5 |
| Age at time of study (hours) | 11 (3) | 19 (6) | 0.2 |
| Apgar score | |||
| 1 min | 4 (1) | 4 (1) | 0.9 |
| 5 mins | 8 (0.2) | 7 (0.8) | 0.3 |
| CRIB score | 5.4 (1.2) | 7.0 (2.4) | >0.5 |
| Arterial:alveolar O2tension ratio | 0.20 (0.03) | 0.19 (0.05) | 0.8 |
| Blood urea (mmol/l) | 4.9 (1.3) | 5.1 (1.1) | >0.9 |
| Diameter of ductus arteriosus (mm) | 2.9 (0.2) | 2.8 (0.5) | 0.8 |
| Ductus arteriosus shunt | |||
| left to right | 40% | 50% | >0.9 |
| bidirectional | 60% | 50% | >0.9 |
| Dopamine infusion rate (μg/kg/min) | 8 (1) | 6 (1) | <0.05 |
Values are expressed as mean (SE).