Table 1. Patient demographics.
| Category | PP ( n = 23) | PMP ( n = 21) | p -Value |
|---|---|---|---|
| Gestational age | 38.5 ± 1.4 | 38.6 ± 1.4 | 0.80 |
| Birth weight (g) | 3405 ± 437 | 3226 ± 556 | 0.24 |
| 1-min Apgar | 5 ± 3 | 5 ± 3 | 0.62 |
| 5-min Apgar | 7 ± 2 | 6 ± 2 | 0.40 |
| PPHN (18) | 7/18 (39%) | 11/18 (61%) | 0.14 |
| MAS (15) | 12/15 (80%) | 3/15 (20%) | < 0.05 |
| CDH (8) | 1/8 (13%) | 7/8 (88%) | < 0.05 |
| Sepsis (2) | 2/2 (100%) | 0/0 (0%) | – |
| Other (1) | 1/1 (100%) | 0/0 (0%) | – |
| Age at Cannulation | 2.1 ± 2.3 | 1.1 ± 1 | 0.09 |
| VA | 7/24 (30%) | 9/21 (43%) | 0.34 |
| VV | 17/24 (70%) | 12/21 (57%) |
Abbreviations: CDH, congenital diaphragmatic hernia; MAS, meconium aspiration syndrome; PMP, polymethylpentene; PP, polypropylene; PPHN, persistent pulmonary hypertension of the newborn; VA, venoarterial; VV, venovenous.
Note: One patient was converted from VV to VA ECMO due to clinical deterioration. The differences between the PP and PMP groups were not significant, other than for the indication for ECMO. The majority of MAS cases received a PP MO and nearly all of the CDH population received a PMP MO. The total number of individual CDH patients was seven for the study period; however, as one patient had their oxygenator changed from a PP to a PMP, the two periods of the run were treated as two separate patients for the analysis.