Table 4.
Oropharyngeal leak pressures and ventilation with I-gel.
| Parameter | Neutral | Flexion | Extension | Lateral rotation |
|---|---|---|---|---|
| Oropharyngeal leak pressures (LAW) (cm H2O) | 22 ± 3.23 | 25 ± 3.64* | 19 ± 2.61# | 22 ± 2.74 |
| Ventilation score (3/2/1/0) | 30/0/0/0 | 30/0/0/0 | 29/1/0/0 | 30/0/0/0 |
| Peak airway pressures (cm H2O) | 15 ± 2.99 | 17 ± 5.25© | 15 ± 3.39 | 16 ± 3.24 |
| Expiratory tidal volume (mL) | 481 ± 48.69 | 481 ± 52.67 | 477 ± 50.69 | 478 ± 49.63 |
| LAW-PAW (cm H2O) | 6 ± 4.86 | 7 ± 6.23 | 3 ± 4.46® | 6 ± 4.77 |
| EtCO2 (mm Hg) | 31 ± 2.27 | 31 ± 2.02 | 31 ± 2.10 | 31 ± 2.07 |
Data shown are mean ± SD or numbers. P value is in comparison with the neutral position.
* P < 0.001 between neutral and flexion, # P < 0.001 between neutral and extension.
© P < 0.001 between neutral and flexion, ® P < 0.001 between neutral and extension.