Neonatal and obstetric characteristics of cooled infants
| Patient characteristics (n=85) | |
|---|---|
| Neonatal | |
| Birth weight (g) | 3190±956 |
| Gestational age (weeks) | 38.9±1.7 |
| Male | 50 (59) |
| Transferred from birth hospital | 77 (91) |
| 5 min Apgar score | |
| 0–3 | 59 (69) |
| 4–5 | 17 (20) |
| ≥6 | 9 (11) |
| 10 min Apgar score | |
| 0–3 | 34 (40) |
| 4–5 | 33 (39) |
| ≥6 | 18 (21) |
| Blood gas within 60 min of birth | |
| Median pH | 6.93 (6.0–7.35) |
| pH <6.7 | 12 (14) |
| Mean base deficit (mmol/l) | 20.02±7.5 |
| Base deficit >18.5 | 48 (56) |
| Base deficit >22 | 30 (35) |
| Clinical seizure before hypothermia commenced | 38 (45) |
| Specific components of early neurological examination | |
| Flaccidity | 56 (66) |
| Decerebrate posturing | 21 (25) |
| Absent spontaneous activity | 30 (35) |
| Weak or absent suck/gag reflex | 71 (83) |
| Maternal/obstetric | |
| Emergency caesarean section | 55 (65) |
| Meconium stained amniotic fluid | 30 (35) |
| Abruption | 18 (21) |
| Cord accident/uterine rupture | 15 (18) |
| Pregnancy-induced hypertension | 6 (7) |
| Multiple gestation | 1 (1) |
| Home birth | 4 (5) |
Data are mean±SD, number of patients (%) or median (range).