Table 6. CPET data according to the occurrence or non-occurrence of postoperative cardiopulmonary complications.
| Variables | No postoperative complications (n=17) | Postoperative complications (n=8) | P |
|---|---|---|---|
| Work rate peak (watt) | 82±39 | 81±15 | 0.46 |
| Work rate peak (%) | 72±16 | 59±12 | 0.05 |
| VO2vt (mL/kg/min) | 11.2±4.0 | 11.3±3.0 | 0.98 |
| VO2vt/VO2max (%) | 51.3±12.5 | 45.7±9.4 | 0.14 |
| VO2peak (mL/kg/min) | 16.4±5.9 | 16.2±4.5 | 0.90 |
| VO2peak (%) | 74±15 | 65±14 | 0.10 |
| VE/VCO2 slope | 31.5±6.8 | 38.4±10.3 | 0.32 |
| VR (%) | 16±13 | 14±13 | 0.62 |
| Delta SpO2 (%) | 2±2 | 4±3 | 0.05 |
| HRmax (%) | 82±9 | 74±18 | 0.41 |
| HRR | 71±31 | 44±19 | 0.049 |
| Circulatory power peak (mmHg × mL/kg/min) | 3,611±1,276 | 2,122±1,060 | 0.08 |
Data expressed as mean ± SD. CPET, cardiopulmonary exercise testing; VO2, oxygen consumption; vt, ventilatory threshold; VE, total ventilation; VE/VCO2, respiratory carbon dioxide equivalent; VR, ventilatory reserve; Delta SpO2 saturation transcutaneous oxygen (at peak exercise-rest); HR, heart rate; HRR, heart rate response [(HRpeak − HR at rest)/(VO2peak − VO2rest)].