Table 2.
Hemodynamic Screening (n = 191) | Historical Control Subjects (n = 423) | P Value | |
---|---|---|---|
Primary outcome | |||
Composite of death/severe IVH | 29 (15) | 122 (29) | <0.001 |
Secondary outcomes | |||
Survival free of severe morbidity (NEC, grade III BPD, severe IVH) | 155 (81) | 264 (66) | <0.001 |
Neurological | |||
Severe IVH | 13 (7) | 81/402 (20) | <0.001 |
All grades of IVH | 31/187 (17) | 123/393 (31) | <0.001 |
Respiratory | |||
Bronchopulmonary dysplasia (at 36 wk) | |||
Ventilator dependent (grade III) | 11 (7) | 48 (13) | 0.02 |
Noninvasive positive pressure (grade II) | 124 (74) | 219 (61) | 0.008 |
Death/grade III BPD at 36 wk | 30 (17) | 124 (29) | 0.002 |
Pulmonary hemorrhage | 2 (1) | 15 (4) | 0.11 |
Pneumothorax | 5 (3) | 36/415 (9) | 0.005 |
Cardiovascular | |||
PDA medical treatment | 139 (73) | 228/373 (61) | 0.007 |
PDA intervention (surgery/percutaneous) | 48 (25) | 135/315 (65) | <0.001 |
Gastrointestinal | |||
Intestinal perforation | 11 (6) | 25 (6) | 0.94 |
Necrotizing enterocolitis | 2 (1) | 26 (6) | <0.001 |
Ophthalmologic | |||
Laser/bevacizumab treatment for ROP | 15/189 (8) | 20 (6) | 0.36 |
Mortality characteristics | |||
Death | 21 (12) | 76 (18) | 0.03 |
Age at death | 13 [6, 38] | 7 [2, 22] | 0.07 |
Death in the first postnatal week | 6 (3) | 37 (9) | 0.027 |
Definition of abbreviations: BPD = bronchopulmonary dysplasia; IVH = intraventricular hemorrhage; NEC = necrotizing enterocolitis; PDA = patent ductus arteriosus; ROP = retinopathy of prematurity.
Data are presented as median [interquartile range] or frequency (percent).