Table 2. Arterial blood gas analyses and surgical complications across three groups.
| Group C | Group M | Group S | P | |
|---|---|---|---|---|
| (N = 83, 25.7%) | (N = 193, 59.8%) | (N = 47, 14.6%) | value | |
| PaCO2(mmHg) | 49.7±7.4 | 74.8±10.5 | 112.5±4.3 | 0.00 |
| PaO2 (mmHg) | 293.8±145.8 | 266.8±139.5 | 162.0±111.3 | 0.00 |
| PH | 7.35±0.06 | 7.22±0.06 | 7.03±0.09 | 0.00 |
| Glucose (mmol/L) | 6.60±1.87 | 6.98±1.61 | 9.10±2.74 | 0.00 |
| Lactase (mmol/L) | 0.85±0.39 | 0.72±0.38 | 0.90±1.46 | 0.14 |
| Procedures duration (min) | 71.3±32.1 | 75.4±35.2 | 104.5±75.4 | 0.00 |
| Time of ventilation weaning (min) | 5.4±2.2 | 5.8±2.6 | 8.1±5.1 | 0.00 |
| Stay in OR after operation (min) | 7.3±3.6 | 9.1±8.2 | 13.1±11.6 | 0.00 |
| Hypoxemia | 0 | 3(1.6) | 3(6.4) | 0.03 |
| Tracheorrhagia | 1(1.2) | 4(2.1) | 3(6.4) | 0.16 |
| Delayed recovery | 0 | 12(6.2) | 7(14.9) | 0.00 |
| Postoperative CHF | 1(1.2) | 6(3.1) | 7(14.9) | 0.00 |
| Transfer to ICU | 1(1.2) | 3(1.6) | 6(12.8) | 0.00 |
Data are presented as mean± standard deviation or patient number.
Tracheorrhagia: blood volume above 200mL; Delayed recovery: recovery time >30min; Hypoxemia: arterial oxygen partial pressure (PaO2) below 60mmHg; Hypercapnia: arterial CO2 partial pressure (PaCO2) above 45 mmHg. CHF: congestive heart failure; OR: operation room.