Table 3.
Airway leak of LMA ProSeal and peak airway pressure at four time points
| AutoFlow group (n = 40) | VCV group (n = 39) | P value | |
|---|---|---|---|
| 1. Airway leak | 0 (0) | 0 (0) | |
| 2. Airway leak | 0 (0) | 0 (0) | |
| 3. Airway leak | 2 (5) | 0 (0) | 0.49 |
| 4. Airway leak | 4 (10) | 2 (5) | 0.68 |
| 1. PAWP (cmH2O) | 12 [12–13] | 13 [12–14] | 0.013 |
| 2. PAWP (cmH2O) | 12 [12–13] | 13 [13–14] | 0.004 |
| 3. PAWP (cmH2O) | 13 [12–15] | 16 [12–17] | 0.001 |
| 4. PAWP (cmH2O) | 16 [15–18] | 18 [17–19] | < 0.001 |
1, One min after insertion of the gastric tube; 2, Two min after intravenous administration of neuromuscular blocking drug; 3, One min after initiation of pneumoperitoneum; 4, One min after change to the Trendelenburg position. Data are shown as number (proportion), median [interquartile range].
VCV Volume-controlled ventilation, PAWP Peak airway pressure