TABLE 4.
Clinical outcomes in patients with and without severe hypoxemia after AADS.
| Variables | All patients n = 492 (%) |
Without severe hypoxemia n = 373 (%) |
With severe hypoxemia n = 119 (%) |
χ2/Z | P-value |
| Mechanical ventilation (h) | 63.1 (40.3, 94.9) | 57.1 (38.2, 86.8) | 92.8 (63.1, 157.5) | 7.389 | <0.001 |
| Pneumonia | 170 (34.6) | 102 (27.3) | 68 (57.1) | 35.421 | <0.001 |
| Reintubation | 72 (14.6) | 45 (12.1) | 27 (22.7) | 8.152 | 0.004 |
| Tracheostomy | 55 (11.2) | 30 (8.0) | 25 (21.0) | 15.274 | <0.001 |
| Readmission to ICU | 44 (8.9) | 24 (6.4) | 20 (16.8) | 11.919 | 0.001 |
| ICU stay (h) | 154.3 (108.1, 254.5) | 135.5 (91.0, 207.0) | 230.2 (155.6, 368.6) | 7.430 | <0.001 |
| Hospital stay (days) | 21 (17, 27) | 20 (16, 26) | 23 (19, 33) | 3.937 | <0.001 |
| Mortality | 49 (10.0) | 25 (6.7) | 24 (20.2) | 18.242 | <0.001 |
AADS, Stanford type A acute aortic dissection surgery; ICU, intensive care unit.