RIFLE classification | |||||
---|---|---|---|---|---|
 | Non-AKI | Risk | Injury | Failure |  |
 | n = 89 (36%) | n = 72 (30%) | n = 55 (23%) | n = 26 (11%) |  |
 | Median | Median | Median | Median |  |
 | (IQR) | (IQR) | (IQR) | (IQR) | P value* |
Birth weight (kilograms) | 3.3 (2.9-3.7) | 3.4 (3.0-3.7) | 3.3 (2.9-3.7) | 3.0 (2.5-3.6) | 0.242a |
Apgar score | Â | Â | Â | Â | Â |
1 minute after birth | 6 (3-8) | 5 (3-7) | 5 (3-7) | 4 (1-7) | 0.616a |
5 minutes after birth | 7 (5-9) | 7 (5-8) | 7 (5-8) | 6 (5-8) | 0.815a |
10 minutes after birth | 7 (6-8) | 7 (6-8) | 7 (4-8) | 7 (6-8) | 0.904a |
Age at start of ECMO (hours) | 44 (27-104) | 36 (21-45) | 38 (26-59) | 38 (28-64) | 0.004 a |
ECMO duration (days) | 4.9 (3.6-8.2) | 6.4 (4.2-10.2) | 5.7 (4.4-8.9) | 7.8 (4.5-15.1) | 0.012 a |
Length of ICU stay (days) | 8 (6-8.2) | 11 (7-20.8) | 10 (6-18) | 14.5 (5.8-22.3) | 0.178a |
 | n (%) | n (%) | n (%) | n (%) | P value |
Sex, female | 41 (46%) | 30 (42%) | 25 (45%) | 15 (58%) | 0.576b |
Diagnosis | Â | Â | Â | Â | 0.155b |
Meconium-aspiration syndrome^ | 40 (45%) | 35 (49%) | 22 (40%) | 6 (23%) | Â |
Congenital diaphragmatic hernia^ | 22 (25%) | 22 (30%) | 13 (24%) | 13 (50%) | Â |
Isolated PPHN | 9 (10%) | 8 (11%) | 6 (11%) | 3 (12%) | Â |
Other | 18 (20%) | 7 (10%) | 14 (25%) | 4 (15%) | Â |
Before ECMO | Â | Â | Â | Â | Â |
Vasopressor drugs | 81 (91%) | 70 (97%) | 50 (91%) | 24 (92%) | 0.535b |
Nitric oxide ventilation | 80 (90%) | 53 (74%) | 27 (49%) | 14 (54%) | <0.001 b |
Perinatal asphyxia | 48 (54%) | 40 (56%) | 39 (71%) | 14 (54%) | 0.142b |
Cardiac arrest | 5 (6%) | 5 (7%) | 14 (26%) | 7 (27%) | <0.001 b |
During ECMO | Â | Â | Â | Â | Â |
Major surgery | 4 (4%) | 4 (6%) | 8 (15%) | 2 (8%) | 0.137b |
Myocardial stunning | 3 (3%) | 4 (6%) | 0 (0%) | 1 (4%) | 0.385b |
Nonsurvivors | 20 (22%) | 13 (18%) | 13 (24%) | 17 (65%) | <0.001b |
Early nonsurvivors | 9 (45%) | 4 (31%) | 8 (62%) | 9 (53%) | Â |
<24 hours after ECMO | Â | Â | Â | Â | Â |
Late nonsurvivors | 11 (55%) | 9 (69%) | 5 (38%) | 8 (47%) | Â |
≥24 hours after ECMO |  |  |  |  |  |