Table 5.
SpO2, cerebral, and somatic tissue oxygenation measurements throughout the perioperative period.
| Time period |
p-value (compared to pre-CPB) |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| CPB |
ICU |
Discharge | CPB |
ICU |
Discharge | ||||||
| Pre | During | Post | Day 1 | Day 2 | During | Post | Day 1 | Day 2 | |||
| Corrective surgery | |||||||||||
| SpO2 (%) | 86 (79, 90) | 99 (94, 100) | 99 (98, 100) | 97 (95, 98) | 98 (89, 99) | 97 (92, 98) | 0.004 | <0.001 | <0.001 | <0.001 | <0.001 |
| Cerebral (%) | 72.1 (63.0, 78.3) | 69.2 (61.2, 74.7) | 72.8 (58.8, 79.0) | 66.4 (61.2, 75.1) | 68.3 (55.0, 74.4) | 60.5 (53.6, 62.9) | 0.761 | 0.761 | 0.135 | 0.520 | 0.005 |
| Somatic (%) | 72.7 (65.6, 77.3) | 86.3 (83.6, 88.6) | 87.3 (77.2, 89.5) | 72.5 (68.1, 79.3) | 71.9 (63.4, 74.1) | 66.9 (57.3, 76.9) | <0.001 | <0.001 | 0.890 | 0.339 | 0.048 |
| Non-corrective surgery | |||||||||||
| SpO2 (%) | 87 (79, 90) | 95 (95, 95) | 82 (82, 86) | 80 (77, 92) | 90 (70, 98) | 80 (80, 81) | 1.000 | 0.250 | 0.875 | 1.000 | 0.250 |
| Cerebral (%) | 59.4 (42.5, 65.8) | 73.8 (66.0, 77.8) | 58.8 (52.9, 67.7) | 54.1 (46.4, 66.0) | 64.4 (36.2, 66.6) | 54.5 (52.9, 60.4) | 0.125 | 0.875 | 0.875 | 1.000 | 0.250 |
| Somatic (%) | 64.6 (42.8, 74.7) | 81.4 (74.1, 91.1) | 79.2 (58.9, 84.1) | 69.8 (60.4, 71.7) | 65.3 (48.2, 66.1) | 56.9 (50.3, 60.6) | 0.125 | 0.125 | 0.625 | 0.500 | 0.250 |
Continuous variables are presented as median (interquartile range).
CPB, cardiopulmonary bypass; ICU, intensive care unit; SpO2, pulse oximetry.