Table 2.
Comparison of Cdyn, MAP and OI at 1 min of titration for each PEEP level in the titration group (x̅±sd, n = 40)
| PEEP (cmH2O) | Cdyn (mL/cmH2O) | MAP (mmHg) | OI (mmHg) |
|---|---|---|---|
| 0 | 24.89±4.78 | 83.76±8.34 | 362.41±64.78 |
| 2 | 24.98±5.00 | 83.11±7.80 | 367.98±65.00 |
| 4 | 25.44±4.85 | 82.97±8.23 | 370.44±64.85 |
| 6 | 25.83±5.80 | 82.22±7.80 | 374.33±75.80 |
| 8 | 26.77±5.78 | 82.01±7.87 | 377.64±71.78 |
| 10 | 27.03±5.53 | 81.62±7.85 | 389.93±61.53 |
| 12 | 29.49±6.07* | 81.27±9.23 | 422.49±46.07* |
| 14 | 29.81±5.39* | 80.83±7.39 | 427.81±55.39* |
| 16 | 28.86±5.36* | 79.96±8.63* | 399.86±75.36* |
| 18 | 27.89±5.40* | 78.44±7.68* | 391.49±57.40* |
| 20 | 27.11±5.69 | 77.63±9.37* | 380.13±65.69 |
Note: 1 mmHg = 0.133 KPa; 1 cmH2O = 0.098 KPa.
Compared with PEEP = 0 in the titration group;
*
P<0.05.
PEEP: positive end-expiratory pressure; Cdyn: dynamic pulmonary compliance; MAP: mean arterial pressure; OI: oxygenation index.