Table 1 Baseline characteristics according to the cannulation (before and after propensity score matching)
Unmatched cohort | Matched cohort | |||||||
|---|---|---|---|---|---|---|---|---|
Total (n = 335) | Jugular (n = 157) | Femoral (n = 178) | P | Total (n = 180) | Jugular (n = 90) | Femoral (n = 90) | P | |
Age | 55.6 ± 14.7 | 55.5 ± 14.3 | 55.7 ± 15 | 0.885 | 56.7 ± 14 | 56.4 ± 14.2 | 57 ± 13.9 | 0.759 |
Sex | 222 (66.3) | 111 (70.7) | 111 (62.4) | 0.135 | 113 (62.8) | 54 (60) | 59 (65.6) | 0.537 |
BMI | 22.9 ± 4.1 | 23.1 ± 4.3 | 22.6 ± 3.9 | 0.281 | 22.6 ± 4.1 | 23 ± 4.4 | 22.2 ± 3.7 | 0.166 |
APACHE | 22.1 ± 9.3 | 20 ± 8.8 | 24 ± 9.4 | < 0.001 | 22.3 ± 9.4 | 21.8 ± 9.4 | 22.8 ± 9.4 | 0.507 |
SOFA | 8.5 ± 4.3 | 8.6 ± 4.2 | 8.5 ± 4.5 | 0.812 | 8.6 ± 4.5 | 8.6 ± 4.4 | 8.7 ± 4.6 | 0.894 |
RESP score | 0.2 ± 3.3 | 0.9 ± 3.2 | 0.6 ± 3.2 | < 0.001 | 0 ± 3.1 | 0 ± 3 | 0 ± 3.1 | 0.846 |
Preserve score | 5.4 ± 1.8 | 5.3 ± 1.9 | 5.5 ± 1.8 | 0.519 | 5.4 ± 1.8 | 5.3 ± 1.9 | 5.4 ± 1.7 | 0.726 |
Etiology of respiratory failure | 0.004 | 0.192 | ||||||
Viral pneumonia | 49 (14.6) | 23 (14.6) | 26 (14.6) | 31 (17.2) | 14 (15.6) | 17 (18.9) | ||
Bacterial pneumonia | 133 (39.7) | 79 (50.3) | 54 (30.3) | 73 (40.6) | 42 (46.7) | 31 (34.4) | ||
COPD and asthma | 4 (1.2) | 3 (1.9) | 1 (0.6) | 1 (0.6) | 0 (0.0) | 1 (1.1) | ||
Trauma and burn | 14 (4.2) | 8 (5.1) | 6 (3.4) | 7 (3.9) | 2 (2.2) | 5 (5.6) | ||
Asphyxia | 4 (1.2) | 2 (1.3) | 2 (1.1) | 2 (1.1) | 2 (2.2) | 0 (0.0) | ||
Acute exacerbation of ILD | 65 (19.4) | 22 (14.0) | 43 (24.2) | 36 (20.0) | 18 (20.0) | 18 (20.0) | ||
Chronic respiratory failure | 16 (4.8) | 5 (3.2) | 11 (6.2) | 6 (3.3) | 2 (2.2) | 4 (4.4) | ||
Airway obstruction | 25 (7.5) | 6 (3.8) | 19 (10.7) | 15 (8.3) | 4 (4.4) | 11 (12.2) | ||
Other respiratory failure | 25 (7.5) | 9 (5.7) | 16 (9.0) | 9 (5.0) | 6 (6.7) | 3 (3.3) | ||
Pre-ECMO rescue therapy | 1.000 | 0.765 | ||||||
NMB | 179 (54.1) | 83 (53.9) | 96 (54.2) | 95 (52.8) | 46 (51.1) | 49 (54.4) | ||
NO | 103 (31.1) | 25 (16.2) | 78 (44.1) | 51 (28.3) | 25 (27.8) | 26 (28.9) | ||
Prone | 80 (25.1) | 55 (38.7) | 25 (14.1) | 45 (25.6) | 30 (34.9) | 15 (16.7) | ||
Steroid | 63 (19.6) | 31 (21.7) | 32 (18) | 34 (19.3) | 21 (24.4) | 13 (14.4) | ||
CRRT | 53 (15.8) | 19 (12.1) | 34 (19.1) | 27 (15) | 14 (15.6) | 13 (14.4) | ||
MV | 318 (94.9) | 155 (98.7) | 163 (91.6) | 177 (98.3) | 88 (97.8) | 89 (98.9) | ||
Center | <0.001 | <0.001 | ||||||
A | 44 (13.1) | 5 (3.2) | 39 (21.9) | 28 (15.6) | 5 (5.6) | 23 (25.6) | ||
B | 109 (32.5) | 86 (54.8) | 23 (12.9) | 68 (37.8) | 50 (55.6) | 18 (20) | ||
C | 44 (13.1) | 3 (1.9) | 41 (23) | 16 (8.9) | 3 (3.3) | 13 (14.4) | ||
D | 77 (23) | 18 (11.5) | 59 (33.1) | 33 (18.3) | 10 (11.1) | 23 (25.6) | ||
E | 45 (13.4) | 44 (28) | 1 (0.6) | 22 (12.2) | 22 (24.4) | 0 (0) | ||
F | 16 (4.8) | 1 (0.6) | 15 (8.4) | 13 (7.2) | 0 (0) | 13 (14.4) | ||
Year | 0.216 | 0.633 | ||||||
2 | 76 (22.7) | 34 (21.7) | 42 (23.6) | 45 (25) | 23 (25.6) | 22 (24.4) | ||
3 | 77 (23) | 34 (21.7) | 43 (24.2) | 35 (19.4) | 20 (22.2) | 15 (16.7) | ||
4 | 87 (26) | 36 (22.9) | 51 (28.7) | 51 (28.3) | 22 (24.4) | 29 (32.2) | ||
5 | 95 (28.4) | 53 (33.8) | 42 (23.6) | 49 (27.2) | 25 (27.8) | 24 (26.7) | ||