Table 2.
Postoperative complications in the observation and control groups
| Complications | Observation (n = 70) | Control (n = 70) | p value |
|---|---|---|---|
| Death, % | 3 (4.3) | 1 (1.4) | 0.137 |
| Endotracheal intubation time, x ± s, h | 59.3±31.2 | 56.1±17.1 | 0.868 |
| ICU time, x ± s, d | 3.78±4.1 | 3.35±1.4 | 0.324 |
| Malignant tumors, n (%) | 13 (18.6) | 1 (1.4) | 0.01 |
| Hypocardiac syndrome, n (%) | 4 (5.7) | 2 (2.9) | 0.692 |
| Cardiac arrest, n (%) | 2 (2.9) | 3 (4.3) | 0.137 |
| Nerve damage, n (%) | 1 (1.4) | 6 (8.6) | 0.026 |
| Gastrointestinal bleeding, n (%) | 3 (4.3) | 5 (7.1) | 0.778 |
| New dialysis, n (%) | 7 (10.0) | 5 (7.1) | 1.0 |
The comparison between the two groups is statistically significant, with p < 0.05 indicating a significant difference. Conversely, it indicates no difference. Hypocardiac syndrome was defined as postoperative monitoring of cardiac index (CI) <2 L (min*m2) by radial arterial thermodilution, accompanied by systemic hypoperfusion manifestations, including oliguria, decreased blood pressure, and increased lactate. Nerve damage included delayed awakening after cardiac surgery (>24 h), delirium, ischemic hypoxic encephalopathy, new limb and peripheral nerve dysfunction, etc.