Table 2. Relationship between CO2 pressure and hemodynamic parameters during middle thoracic stage.
| Parameters | Pneumomediastinal pressure | P | ||||
|---|---|---|---|---|---|---|
| 0 mmHg | 4 mmHg | 8 mmHg | 12 mmHg | 16 mmHg | ||
| HR | 70.3±5.6 | 74.7±4.5 | 70.4±7.7 | 70.9±6.2 | 73.2±5.2 | 0.832 |
| ABPsys | 100.5 ±9.2 | 109.0 ±8.1 | 116.1 ±13.1 | 114.4 ±9.2 | 113.7±12.4 | 0.887 |
| ABPdys | 57.7±7.1 | 68.2±8.7 | 75.1±6.4 | 72.4±9.1 | 72.5±7.8 | 0.704 |
| CVP | 8.1±5.4 | 8.4±4.2 | 10.8±5.2 | 11.1±3.6 | 14.3±5.0 | 0.091 |
| CO | 1.95±0.43 | 1.59±0.28 | 1.57±0.57 | 1.64±0.71 | 1.44±0.65 | 0.038 |
| PAPsys | 27.6±4.3 | 28.7±7.1 | 27.7±5.6 | 28.8±6.1 | 29.8±7.3 | 0.063 |
| PAPdys | 6.6±2.7 | 7.6±4.1 | 7.1±3.2 | 8.8±1.9 | 8.3±3.4 | 0.401 |
| EVLW | 221.5±61.2 | 245.3±74.7 | 267.5±58.4 | 247.1±73.3 | 263.8±70.5 | 0.077 |
Results expressed as mean ± SD. SD, standard deviation; HR, heart rate (bpm); ABPsys, systolic arterial blood pressure (mmHg); ABPdys, diastolic arterial blood pressure (mmHg); CVP, central venous pressure (cmH2O); CO, cardiac output (L/min); PAPsys, systolic pulmonary artery pressure (mmHg); PAPdys, diastolic pulmonary artery pressure (mmHg); EVLW, extravascular lung water (mL/kg).