Table 1.
Baseline demographic characteristics.
| Total (n = 42) |
PAPi < 1.3 (n = 20) |
PAPi ≥ 1.3 (n = 22) |
p-Value | |
|---|---|---|---|---|
| Age | 71 (58, 82) | 71.5 (57.3, 75) | 71 (61.5, 82.5) | 0.251 |
| Female gender | 17 (40%) | 7 (35%) | 10 (45%) | 0.5430 |
| Body surface area (m2) | 1.60 (1.43, 1.69) | 1.66 (1.56, 1.77) | 1.55 (1.41, 1.63) | 0.0101 * |
| Body mass index (kg/m2) | 21.4 (19.4, 22.6) | 22.4 (21.4, 23.9) | 19.7 (18.3, 22.1) | 0.0026 * |
| Acute myocardial infarction | 27 (64%) | 16 (80%) | 11 (50%) | 0.0577 |
| Atrial fibrillation | 13 (31%) | 7 (35%) | 6 (27%) | 0.741 |
| Old brain infarction | 10 (24%) | 4 (20%) | 6 (27%) | 0.7225 |
| Impella 2.5 | 21 (50%) | 9 (45%) | 12 (55%) | 0.7579 |
| Impella 5.0 | 12 (29%) | 4 (20%) | 8 (36%) | 0.3148 |
| Impella CP | 11 (26%) | 9 (45%) | 2 (9%) | 0.0132 * |
| Extracorporeal membrane oxygenation | 10 (24%) | 10 (50%) | 0 (0%) | 0.0001 * |
| Via femoral artery insertion | 32 (76%) | 17 (85%) | 15 (68%) | 0.2842 |
| Antiplatelet therapy | 25 (60%) | 14 (70%) | 11 (50%) | 0.2225 |
| Support duration (days) | 6 (3, 9) | 6 (3.3, 9) | 6 (3, 10) | 0.8394 |
| Continuous hemodiafiltration | 11 (26%) | 5 (25%) | 6 (27%) | 1.0000 |
| Mechanical ventilation | 23 (55%) | 16 (80%) | 7 (32%) | 0.0023 * |
PAPi, pulmonary artery pulsatility index. * p < 0.05 by Mann–Whitney U test or Fisher’s exact test as appropriate.